Control method and device for engine in vehicle, processor and vehicle

Abstract

The invention discloses a control method and device for an engine in a vehicle, a processor and the vehicle. The method comprises the steps that first state information of a to-be-controlled engine in the vehicle and second state information of the vehicle are obtained, the first state information is used for representing whether the to-be-controlled engine breaks down or not, and the second state information is used for representing the running state of the vehicle before the engine is controlled; responding to the condition that the first state information and the second state information meet the starting condition of the engine, controlling a piston in the engine, exhausting residual gas in an air cylinder of the engine, and obtaining the torque of the engine after the residual gas is exhausted; adjusting the rotating speed of the engine based on the torque; and in response to the condition that the adjusted rotating speed reaches a rotating speed threshold value, the engine is controlled to ignite so as to control the engine to enter a starting state, and the rotating speed threshold value is used for representing the rotating speed meeting the ignition requirement of the engine. The technical problem that the engine in the vehicle cannot be effectively controlled is solved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a control method, device, processor and vehicle for an engine in a vehicle. Background Art

[0002] At present, with the increasing awareness of environmental protection and increasingly stringent emission regulations, the demand for clean energy is increasing. Hydrogen, as one of the cleanest energy sources, has attracted much attention because hydrogen combustion only produces water vapor and no harmful emissions. Hydrogen fuel cell technology has become the mainstream technology in the field of clean energy, and hydrogen internal combustion engines, as another form of hydrogen energy utilization, have also begun to attract attention.

[0003] In the related art, a hydrogen internal combustion engine can act as an engine to control vehicle driving. If the engine in the vehicle needs to be started, it is only necessary to drag the engine speed to the ignition speed, and then maintain the speed to start successfully. However, due to the high hydrogen pressure and harsh combustion environment of hydrogen engines, hydrogen engines are prone to large shocks and vibrations during the starting process. These vibrations and instabilities may affect the performance of the engine and the driving experience of the entire vehicle. Therefore, the above starting process does not take into account how to ensure the stability of hydrogen combustion. In summary, there is still a technical problem that the engine in the vehicle cannot be effectively controlled.

[0004] With respect to the above-mentioned technical problem of being unable to effectively control the engine in the vehicle, no effective solution has been proposed so far. Summary of the invention

[0005] Embodiments of the present invention provide a method, device, processor and vehicle for controlling an engine in a vehicle, so as to at least solve the technical problem that the engine in the vehicle cannot be effectively controlled.

[0006] According to one aspect of an embodiment of the present invention, a method for controlling an engine in a vehicle is provided. The method may include: obtaining first state information of an engine to be controlled in the vehicle and second state information of the vehicle, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate the running state of the vehicle before controlling the engine; in response to the first state information and the second state information satisfying the starting condition of the engine, controlling the piston in the engine to discharge the remaining gas in the cylinder of the engine, and obtaining the torque of the engine after the remaining gas is discharged; based on the torque, adjusting the speed of the engine; in response to the adjusted speed reaching a speed threshold, controlling the engine ignition to control the engine to enter the starting state, wherein the speed threshold is used to indicate the speed that meets the ignition requirement of the engine.

[0007] Optionally, the starting conditions include necessary starting conditions, wherein, after obtaining first state information of an engine to be controlled in a vehicle and second state information of the vehicle, the method further includes: in response to the gas supply system of the engine in the first state information being in a normal working state, the engine having no faults in the first state information, and the vehicle in the second state information being in a powered-on state, determining that the first state information and the second state information meet the necessary starting conditions for the engine.

[0008] Optionally, the starting condition includes a starting activation condition, wherein first state information that satisfies at least one of the following is determined as the first state information that satisfies the starting condition, including: the sum of the vehicle's driving demand and the vehicle's load demand in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the engine's working efficiency in the first state information is lower than the working efficiency threshold; the battery's power information in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the generator's power generation capacity is lower than the power generation capacity threshold; the vehicle speed in the first state information reaches the vehicle speed threshold; there is a heating demand in the vehicle in the first state information; the vehicle's hood is in an open state in the first state information, and / or the speed difference between the two ends of the vehicle's clutch in the first state information is greater than the speed difference threshold.

[0009] Optionally, in response to the first state information and the second state information satisfying the starting condition of the engine, the piston in the engine is controlled to discharge the remaining gas in the cylinder of the engine, including: in response to the first state information and the second state information satisfying the starting condition, the engine is controlled to idle, so that the piston performs reciprocating motion in the cylinder to discharge the remaining gas in the cylinder.

[0010] Optionally, the engine speed is adjusted based on the torque, including: detecting the speed to obtain a detection result; in response to the detection result that the speed is less than a speed threshold, providing torque to the engine to make the speed reach the speed threshold.

[0011] Optionally, in response to the adjusted speed reaching a speed threshold, the engine ignition is controlled to control the engine to enter a starting state, including: in response to the speed reaching the speed threshold, the engine management system of the engine is controlled to send an ignition command to the engine; in response to the engine receiving the ignition command, the engine ignition is controlled; the method also includes: adjusting the torque of the generator in the vehicle to a torque threshold, wherein the torque threshold is less than the torque corresponding to the speed threshold.

[0012] Optionally, the method further includes: in the process of controlling the engine ignition based on the ignition instruction, performing closed-loop control on the rotational speed to maintain the rotational speed.

[0013] Optionally, the method further includes: in response to the first state information and the second state information satisfying a stop condition of the engine, controlling the engine to enter a stop state.

[0014] Optionally, the stop condition includes a necessary stop condition, and the necessary stop condition includes: the gas supply system of the engine is in a normal working state in the first state information; there is no fault in the engine in the first state information; and the vehicle is in a powered-on state in the second state information.

[0015] Optionally, the stop condition includes a stop activation condition, which includes: the sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the working efficiency of the engine in the first state information is lower than the working efficiency threshold; the power information of the battery in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the power generation capacity of the generator is lower than the power generation capacity threshold; the vehicle speed in the first state information reaches the vehicle speed threshold; there is a heating demand in the vehicle in the first state information; the hood of the vehicle in the first state information is in an open state, and / or the speed difference between the two ends of the clutch of the vehicle in the first state information is greater than the speed difference threshold.

[0016] Optionally, the method also includes: in response to the first state information and the second state information not satisfying at least one of the necessary stop conditions, determining that the first state information and the second state information satisfy the stop condition; in response to the first state information and the second state information satisfying the necessary stop condition but not satisfying the stop activation condition, determining that the first state information and the second state information satisfy the stop condition.

[0017] Optionally, in response to the first state information and the second state information satisfying the stop condition of the engine, controlling the engine to enter a stop state includes: in response to the first state information and the second state information satisfying the stop condition, sending negative torque data to the engine management system of the engine; in response to the engine management system receiving the negative torque data, controlling the engine management system to stop spraying gas and reducing the speed to make the engine enter a stop state; the method also includes: adjusting the crankshaft position of the engine to a target position.

[0018] According to another aspect of an embodiment of the present invention, a control device for an engine in a vehicle is also provided. The device may include: an acquisition unit, used to acquire first state information of an engine to be controlled in the vehicle, and second state information of the vehicle, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate the running state of the vehicle before controlling the engine; a first control unit, used to control the piston in the engine to discharge the remaining gas in the cylinder of the engine in response to the first state information and the second state information satisfying the starting condition of the engine, and to obtain the torque of the engine after the remaining gas is discharged; an adjustment unit, used to adjust the speed of the engine based on the torque; a second control unit, used to control the engine ignition in response to the adjusted speed reaching the speed threshold, so as to control the engine to enter the starting state, wherein the speed threshold is used to indicate the speed that meets the ignition requirement of the engine.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the engine in the vehicle of the present invention.

[0020] According to another aspect of an embodiment of the present invention, a processor is provided, which is used to run a program, wherein the method for controlling an engine in a vehicle according to an embodiment of the present invention is executed when the program is run.

[0021] According to another aspect of the embodiment of the present invention, a computer program product is provided, which includes a computer program, and when the computer program is executed by a processor, the control method of the engine in the vehicle of the embodiment of the present application is implemented.

[0022] In an embodiment of the present invention, if it is necessary to start the engine in the vehicle, the first state information of the engine in the vehicle and the second state information of the vehicle can be collected, and the first state information can be used to analyze whether the engine is faulty, and the second state information can be used to analyze the running state of the vehicle before controlling the engine. Through the first state information and the second state information, it is judged whether the state of the engine and the vehicle meets the starting condition of the engine. If it is satisfied, the piston in the engine can be controlled to remove the remaining gas in the cylinder of the engine, that is, the engine is subjected to hydrogen sweeping control. After the remaining gas is removed, the torque of the engine can be obtained. Based on the torque, the speed of the engine is adjusted. When the speed of the engine is adjusted to the speed threshold, the engine ignition can be controlled so that the engine enters the starting state. In this embodiment, before the engine is started, the remaining gas in the cylinder of the engine before starting can be swept out by hydrogen sweeping control to ensure the stability of combustion, thereby achieving the purpose of effectively reducing the vibration of the engine in the starting stage, improving the stability of combustion during the starting process, and achieving the purpose of effective vehicle drivability and power, thereby achieving the technical effect of effectively controlling the engine in the vehicle and solving the technical problem of being unable to effectively control the engine in the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a flow chart of a method for controlling an engine in a vehicle according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a method for controlling the start and stop of a hydrogen internal combustion engine according to an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a control device for an engine in a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to an embodiment of the present invention, an embodiment of a method for controlling an engine in a vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] Figure 1 is a flow chart of a method for controlling an engine in a vehicle according to an embodiment of the present invention. Figure 1 As shown, the method may include the following steps:

[0031] Step S102, obtaining first state information of an engine to be controlled in the vehicle and second state information of the vehicle.

[0032] In the technical solution provided in the above step S102 of the present invention, the engine can be a hydrogen internal combustion engine, which can also be called a hydrogen engine. The engine may include a hydrogen supply system and a piston, etc. The first state information can be used to indicate whether the engine to be controlled is faulty, and can be information composed of whether each component in the engine is faulty, such as information on whether the hydrogen supply system is faulty. The second state information can be used to indicate the operating state of the vehicle before controlling the engine, such as whether the vehicle is in a high-voltage power-on state, the load state of the vehicle, etc. This is only for example and is not specifically limited.

[0033] In this embodiment, if it is necessary to control the engine in the vehicle, the states of the engine and the vehicle may be analyzed respectively to determine the corresponding first state information and second state information.

[0034] Optionally, sensors and monitoring devices are installed in the vehicle to collect the first state information of the engine and the second state information of the vehicle. These devices can communicate with the control system of the vehicle through physical connection or wireless connection.

[0035] For example, the first state information of the engine to be controlled can be collected through the following steps: Install sensors to monitor the operating status of each component in the engine, such as the pressure sensor of the hydrogen supply system, the piston position sensor, etc. Input the output signal of the sensor into the control system for processing to determine whether each component is working properly. Design corresponding algorithms to identify possible fault conditions, such as comparing the difference between the sensor output value and the normal range to determine whether there is a fault. Feedback the fault information to the vehicle's monitoring system for timely processing and repair.

[0036] For another example, the second state information of the vehicle can be collected through the following steps: Install sensors to monitor the operating status of the vehicle, such as battery voltage sensors, vehicle load sensors, etc. Input the output signal of the sensor into the control system for processing to obtain the real-time state information of the vehicle. Design corresponding algorithms to analyze the state information of the vehicle, such as determining whether the vehicle is in a high-voltage power-on state, the load condition of the vehicle, etc. Feedback the state information of the vehicle to the monitoring system of the vehicle so that the driver or remote monitoring personnel can understand the operation status of the vehicle.

[0037] Through the above steps, the first state information of the engine to be controlled in the vehicle and the second state information of the vehicle can be effectively collected and monitored to ensure the normal operation and safety of the vehicle.

[0038] Step S104, in response to the first state information and the second state information satisfying the engine starting condition, controlling the piston in the engine to discharge the remaining gas in the cylinder of the engine, and obtaining the torque of the engine after the remaining gas is discharged.

[0039] In the technical solution provided in the above step S104 of the present invention, the starting condition is used to indicate whether the current state of the engine and the vehicle allows the engine to start. The remaining gas in the cylinder can be hydrogen. The torque adjustment of the engine can be used to adjust the speed of the engine.

[0040] In this embodiment, the first state information and the second state information can be analyzed to determine whether the first state information and the second state information meet the engine starting condition. If not, the engine cannot be started. Otherwise, hydrogen sweeping control can be performed, that is, the piston in the engine can be controlled to discharge the remaining gas in the cylinder. After the discharge is completed, the engine torque can be obtained.

[0041] Optionally, the first state information and the second state information are analyzed in detail, including the current state of the vehicle, the working state of the engine, whether there is residual gas in the cylinder, etc. This information can be obtained through the vehicle's sensors and monitoring system. According to the analysis results of the first state information and the second state information, it is determined whether the current engine and vehicle states meet the engine starting conditions. If the starting conditions are not met, appropriate measures need to be taken to solve the problem.

[0042] Alternatively, if the starting conditions are met, the engine starting operation can be performed. At this time, the engine can be started by controlling the movement of the piston in the engine. The movement of the piston will help to discharge the remaining gas in the cylinder, preparing for the normal operation of the engine.

[0043] Optionally, after determining that the starting conditions are met, the remaining gas in the cylinder can be discharged through the operation of the piston. Especially if there is a dangerous gas such as hydrogen in the cylinder, removing the remaining gas is a very important step to ensure the safe operation of the engine.

[0044] Through the above method, the safety and reliability of the engine during the starting process can be ensured, and the torque information of the engine can be obtained to provide support for the normal operation of the vehicle.

[0045] In the embodiment of the present invention, since hydrogen is a flammable and explosive gas, if hydrogen remains in the engine cylinder, it may cause an explosion hazard. Through the hydrogen sweeping control technology, hydrogen can be discharged in time to reduce the safety risk in the operation of the engine. The presence of hydrogen may affect the combustion process of the engine, reduce the combustion efficiency, and affect the performance and fuel economy of the engine. Through the hydrogen sweeping control technology, the interference of hydrogen on the combustion process can be reduced, the combustion efficiency can be improved, and fuel consumption can be reduced. Hydrogen sweeping control can help ensure the cleanliness and purity of the gas inside the engine, which is conducive to the normal operation of the engine. After removing the hydrogen, the working state of the engine is more stable, the performance is more reliable, and the service life of the engine is extended. The combustion of hydrogen will produce some emissions. Through the hydrogen sweeping control technology, the harmful gases emitted by the engine can be reduced, the impact on the environment can be reduced, and environmental protection requirements can be met.

[0046] In summary, hydrogen sweeping control can improve engine safety, combustion efficiency and performance, reduce emissions, and have positive technical effects on engine reliability and environmental protection. Therefore, in the engine control system of modern vehicles, hydrogen sweeping control technology is an important technical means to help improve the overall performance and reliability of the vehicle.

[0047] Step S106, adjusting the engine speed based on the torque.

[0048] In the technical solution of the above step S106 of the present invention, after the remaining gas in the cylinder is discharged, the speed of the engine can be adjusted according to the torque.

[0049] Optionally, after hydrogen sweep control is performed, the main reason for adjusting the speed according to the engine torque is to ensure the performance and efficiency of the engine during operation. Adjusting the speed can help optimize the engine's output power and fuel consumption, and improve the vehicle's acceleration performance and fuel economy.

[0050] Optionally, the torque output of the engine is monitored in real time through sensors and monitoring systems. Torque is an important parameter that describes the output power of the engine and can reflect the working state and load condition of the engine. The working state of the engine is analyzed based on the monitored torque data. If the torque is too high or too low, the engine speed may need to be adjusted to achieve a suitable working state. The engine speed can be adjusted by controlling parameters such as the fuel supply and ignition timing of the engine. Increasing or decreasing the fuel supply and adjusting the ignition timing can change the output power and torque of the engine. After adjusting the speed, the torque data needs to be monitored again to confirm whether the adjustment effect meets expectations. If further adjustment is required, the engine parameters can be optimized.

[0051] In the embodiment of the present invention, by adjusting the speed according to the engine torque, the engine can maintain appropriate performance under different working conditions, improving the driving experience and fuel economy of the vehicle. This adjustment process requires advanced vehicle control systems and sophisticated sensor technology to ensure stable operation and efficient operation of the engine.

[0052] Step S108, in response to the adjusted speed reaching the speed threshold, controlling the engine ignition to control the engine to enter a starting state.

[0053] In the technical solution provided in the above step S108 of the present invention, the speed threshold is used to indicate the speed that meets the ignition requirement of the engine, and may also be referred to as the hydrogen injection ignition speed.

[0054] In this embodiment, when the speed is adjusted to the speed threshold, the engine ignition can be controlled to control the engine to enter the starting state.

[0055] Optionally, after the speed adjustment, the engine speed will gradually increase until it reaches a set speed threshold. The speed threshold is a specific speed value used to indicate the minimum speed required for the engine to enter the starting state. This speed threshold can also be called the hydrogen injection ignition speed, because at this speed, the ignition system will inject an appropriate amount of fuel and ignite to start the engine. Once the engine speed reaches the set speed threshold, the control system will trigger the ignition system to ignite at the appropriate time. The purpose of ignition is to produce an explosion in the cylinder, drive the piston to move, and thus start the engine. By controlling the engine ignition, the engine will enter the starting state and begin the normal working cycle, burning fuel to generate power and drive the vehicle forward.

[0056] In the above steps S102 to S108 of the present application, if it is necessary to start the engine in the vehicle, the first state information of the engine in the vehicle and the second state information of the vehicle can be collected. The first state information is used to analyze whether the engine is faulty, and the second state information is used to analyze the running state of the vehicle before controlling the engine. Through the first state information and the second state information, it is determined whether the state of the engine and the vehicle meets the starting conditions of the engine. If so, the piston in the engine can be controlled to remove the remaining gas in the cylinder of the engine, that is, the engine is subjected to hydrogen sweeping control. After removing the remaining gas, the torque of the engine can be obtained. Based on the torque, the speed of the engine is adjusted. When the speed of the engine is adjusted to the speed threshold, the engine ignition can be controlled so that the engine enters the starting state. In this embodiment, before the engine is started, the residual gas in the cylinder of the engine before starting can be swept out through hydrogen sweeping control to ensure the stability of combustion, thereby achieving the purpose of effectively reducing the vibration of the engine during the starting stage, improving the stability of combustion during the starting process, and achieving the purpose of effective vehicle drivability and power, thereby achieving the technical effect of effectively controlling the engine in the vehicle and solving the technical problem of being unable to effectively control the engine in the vehicle.

[0057] The above method of this embodiment is further introduced below.

[0058] As an optional embodiment, the starting conditions include necessary starting conditions, wherein, after obtaining first state information of an engine to be controlled in a vehicle and second state information of the vehicle, the method further includes: in response to the gas supply system of the engine in the first state information being in a normal working state, the engine having no faults in the first state information, and the vehicle in the second state information being in a powered-on state, determining that the first state information and the second state information meet the necessary starting conditions for the engine.

[0059] In this embodiment, after obtaining the first state information and the second state information, the first state information and the second state information can be analyzed. If the gas supply system of the engine in the first state information is in a normal working state, the engine in the first state information has no faults, and the vehicle in the second state information is in a power-on state, it can be determined that the first state information and the second state information meet the necessary conditions for starting the engine, wherein the starting conditions include the necessary conditions for starting. The necessary conditions for starting refer to a series of conditions that need to be met before starting the engine to ensure that the engine can be successfully started and operate normally. The necessary conditions for starting include the normal operation of the hydrogen supply system, the hydrogen engine has no starting faults, and the whole vehicle is in a high-voltage power-on state. Only when these conditions are met can the engine start smoothly and operate normally. Therefore, before starting the engine, it is necessary to carefully check and ensure that these necessary conditions are met to ensure the normal start and operation of the engine. The gas supply system can be a hydrogen supply system. The power-on state can be a high-voltage power-on state.

[0060] Optionally, the hydrogen supply system is a key part of the normal operation of the hydrogen engine, and it must be ensured that it has no faults and can operate normally. The hydrogen supply system includes components such as hydrogen storage tanks, hydrogen delivery pipelines, and hydrogen injection systems. Ensuring the normal operation of the hydrogen supply system can ensure a stable supply of hydrogen, thereby ensuring the normal start-up and operation of the hydrogen engine.

[0061] Optionally, the hydrogen engine itself must have no starting failure and allow the starting operation. This includes the normal operation of various components and systems of the engine, and the normal operation of the hydrogen combustion system and ignition system inside the engine. The starting operation can only be performed when the hydrogen engine has no starting failure and allows starting.

[0062] Optionally, the vehicle being in a high-voltage powered-on state means that the high-voltage battery system of the entire vehicle has been charged and is in working condition, and can provide the required power supply for the hydrogen engine. The high-voltage powered-on state is a key condition to ensure the normal operation of the vehicle's electrical system and is also one of the necessary conditions to ensure the operation of the hydrogen engine.

[0063] As an optional embodiment, the starting condition includes a starting activation condition, wherein, in step S102, first state information that satisfies at least one of the following is determined as first state information that satisfies the starting condition, including: the sum of the vehicle's driving demand and the vehicle's load demand in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the engine's working efficiency in the first state information is lower than the working efficiency threshold; the battery's power information in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the generator's power generation capacity is lower than the power generation capacity threshold; the vehicle speed in the first state information reaches the vehicle speed threshold; the vehicle has a heating demand in the first state information; the vehicle's hood is in an open state in the first state information, and / or the speed difference between the two ends of the vehicle's clutch in the first state information is greater than the speed difference threshold.

[0064] In this embodiment, at least one of the following first state information can be determined as the first state information that satisfies the starting condition: the sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle. The available discharge power of the battery in the first state information is lower than the power threshold. The working efficiency of the engine in the first state information is lower than the working efficiency threshold. The power information of the battery in the first state information is lower than the power information threshold, the towing capacity of the generator in the first state information is lower than the towing capacity threshold, and / or the power generation capacity of the generator is lower than the power generation capacity threshold. The speed of the vehicle in the first state information reaches the speed threshold. There is a heating demand in the vehicle in the first state information. The hood of the vehicle in the first state information is in an open state, and / or the speed difference between the two ends of the clutch of the vehicle in the first state information is greater than the speed difference threshold, wherein the starting condition includes a starting activation condition. The activation conditions for starting a hydrogen engine include power starting, power battery factor starting, engine performance starting, battery state of charge (SOC) balance starting, generator factor starting, economic starting, air conditioning factor starting, safety starting and other aspects.

[0065] Optionally, power starting means that when the sum of the vehicle's driving demand and load demand is greater than the power that can be provided by the power battery, the hydrogen engine needs to be started to meet the driver's driving demand.

[0066] Optionally, in a hybrid vehicle, the power battery is one of the main power sources, responsible for providing electrical energy to drive the motor. However, when the vehicle's driving requirements (e.g., acceleration, climbing, etc.) and load requirements (e.g., load, driving conditions, etc.) exceed the power that the power battery can provide, the motor may not be able to meet the vehicle's power requirements, and the hydrogen engine needs to be started to provide additional power support. In some cases, such as when high loads such as rapid acceleration, climbing, and overtaking are required, the motor alone cannot provide sufficient power output. At this time, by starting the hydrogen engine, the power output of its internal combustion engine is used to provide additional power support to meet the vehicle's power requirements and ensure the driver's driving experience and driving safety.

[0067] Optionally, once it is detected that the sum of the vehicle's driving demand and load demand exceeds the power output range of the power battery, the system will start the hydrogen engine. The engine will provide additional power output to help the vehicle quickly respond to the driver's operating instructions and improve the vehicle's dynamic performance and driving experience.

[0068] In the embodiment of the present invention, the main advantage of dynamic starting is to ensure the reliability and performance of the vehicle under high load and high power demand. By reasonably controlling the start and stop of the engine, the system can flexibly allocate the power source according to the real-time situation, improve the power output and driving efficiency of the whole vehicle, and ensure the driving safety and comfort of the driver. In summary, the setting and implementation of dynamic starting conditions help to improve the working efficiency, reliability and performance of the hybrid power system, and ensure that the vehicle can provide sufficient power output under high load and high power demand conditions to meet the driving needs of the driver.

[0069] Optionally, power battery factor starting means that when the available discharge power reported by the power battery is low due to environmental or other factors, the hydrogen engine needs to be started to ensure that the generator has sufficient torque to drag the engine, ensuring a smooth starting process.

[0070] Optionally, the power battery is an important component of a hybrid vehicle, which is used to store and release electrical energy to drive the motor. However, due to environmental conditions or other factors, the power battery may have a low available discharge power, which may affect the performance of the motor. In this case, it is necessary to provide additional power support by starting the hydrogen engine. In some specific cases, such as when the available discharge power of the power battery is limited, the motor may not be able to provide enough torque to start or run the vehicle. At this time, it is necessary to provide additional power output by starting the hydrogen engine. At the same time, starting the engine also helps to ensure the smooth progress of the starting process, ensuring the torque output and noise, vibration and harshness (NVH) performance of the engine. When the system detects that the available discharge power of the power battery is low, the system will start the hydrogen engine to ensure that the generator has enough torque to drag the engine and ensure the smooth progress of the starting process. At this time, starting the engine also helps to carry out the hydrogen sweeping process and provide a stable supply of hydrogen for the combustion of the engine.

[0071] In the embodiment of the present invention, the advantage of starting with power battery factors is that the insufficient power of the power battery can be compensated by starting the hydrogen engine, thereby ensuring the power output and performance of the vehicle. This helps to ensure the smooth progress of the starting process and improve the reliability and driving comfort of the vehicle. In summary, the setting and implementation of the starting conditions with power battery factors helps to ensure that the vehicle can still provide sufficient power output when the power of the power battery is limited, thereby improving the reliability and performance of the vehicle. The starting activation condition ensures that the vehicle can start and run smoothly in various environments and situations.

[0072] Optionally, engine performance starting means that in order to ensure the working efficiency of the engine, the engine needs to be started so that its water temperature is within the range of high-efficiency operation to reduce hydrogen consumption.

[0073] Optionally, the operating efficiency of the engine is affected by a variety of factors, including the operating temperature of the engine. In some cases, in order to ensure efficient operation of the engine and reduce hydrogen consumption, it is necessary to adjust and maintain the appropriate operating temperature range of the engine by starting the engine. When the engine runs at a lower temperature, the combustion efficiency may be lower, resulting in increased hydrogen consumption. In order to improve the combustion efficiency of the engine and reduce hydrogen consumption, it is necessary to heat the engine coolant by starting the engine before the engine works so that the water temperature of the engine is within the range of efficient operation.

[0074] Optionally, when the system detects that the engine water temperature is in an inefficient operating range, the system will start the engine to heat the engine coolant and raise the water temperature to an appropriate operating range. By keeping the engine running at an efficient operating temperature, combustion efficiency can be improved, hydrogen consumption can be reduced, and engine performance and reliability can be ensured.

[0075] In the embodiment of the present invention, the advantage of engine performance starting is that the engine's operating temperature is adjusted and maintained by starting the engine, the engine's combustion efficiency is improved, and the hydrogen consumption is reduced. This helps to reduce energy waste, improve the efficiency and performance of the overall system, and extend the service life of the engine. In summary, the setting and implementation of the engine performance starting conditions helps to improve the engine's operating efficiency, reduce hydrogen consumption, ensure that the engine runs at an efficient operating temperature, and improve the overall performance and reliability of the system. The start activation conditions help to optimize the engine's operating state, improve energy efficiency, and ensure the stable operation of the system.

[0076] Optionally, SOC balance start means that when the SOC of the power battery is lower than a certain value, in order to ensure the balanced charge and discharge state of the battery, the engine needs to be started to generate electricity.

[0077] Optionally, the SOC of a power battery refers to the current state of charge of the battery, usually expressed as a percentage. When the SOC of a power battery is lower than a certain value, it may affect the performance and life of the battery, so measures need to be taken to balance the state of charge of the battery. In some cases, such as long-term parking, low-power charging, high-power discharge, etc., the SOC of the power battery may drop to a lower level. In order to avoid excessive discharge or charging of the battery, it is necessary to start the engine to generate electricity to provide electrical energy to charge the battery so that it remains in a suitable state of charge.

[0078] Optionally, when the SOC of the power battery is detected to be lower than a set threshold, the system will start the engine to generate electricity. The engine generates electricity through the generator to charge the power battery, increase the SOC level of the battery, ensure the balanced charge and discharge state of the battery, and extend the service life of the battery.

[0079] In the embodiment of the present invention, the advantage of SOC balanced start is that the state of charge of the power battery is balanced by the engine power generation, which avoids excessive discharge or charging of the battery and improves the life and performance stability of the battery. This helps to maintain the stable operation of the whole vehicle system and maximize the service life of the battery. In summary, the setting and implementation of the SOC balanced start condition helps to ensure that the state of charge of the power battery is within the appropriate range and improve the stability and reliability of the whole vehicle system. The implementation of the start activation condition can effectively manage the charging and discharging process of the battery, ensure that the battery works in a suitable working state, and thus improve the performance and sustainability of the whole vehicle system.

[0080] Optionally, generator-factor starting means that when the generator's traction capacity or power generation capacity is insufficient, the engine needs to be started in time. When the generator's traction capacity is insufficient, starting is to prevent the subsequent capacity from continuing to decline, resulting in the engine being unable to start; when the power generation capacity is insufficient, starting is to prevent the power battery's SOC from being consumed too quickly, and the power generation cannot be replenished in time.

[0081] Optionally, the generator plays an important role in the hybrid system. It can generate electricity to charge the power battery and provide additional power support. However, when the towing capacity or power generation capacity of the generator is insufficient, it may affect the normal operation of the entire system. In some cases, such as when the towing capacity or power generation capacity of the generator is insufficient, the system needs to make up for these deficiencies by starting the engine. If the towing capacity of the generator is insufficient, it may not provide enough torque to tow the engine; if the power generation capacity is insufficient, it may not meet the charging needs of the power battery.

[0082] Optionally, once the system detects that the generator's traction capacity or power generation capacity is insufficient, the system will start the engine. Through the operation of the engine, additional power output can be provided to ensure that the generator has sufficient torque to drive the engine, while ensuring that the SOC of the power battery is replenished in time to avoid excessive energy consumption.

[0083] In the embodiment of the present invention, the advantage of generator factor starting is that the generator's traction capacity or power generation capacity is insufficient by starting the engine, ensuring the normal operation of the entire system. This helps to maintain the stability and reliability of the system and avoid insufficient power or excessive energy consumption. In summary, the setting and implementation of the generator factor starting conditions helps to ensure the normal operation of the generator and the stable operation of the system. The problem of insufficient generator traction capacity or power generation capacity is solved by starting the engine, ensuring the performance and reliability of the entire hybrid system.

[0084] Optionally, economical starting means that when the vehicle speed is high, the engine directly driving the vehicle is most efficient and the engine needs to be started to drive the vehicle.

[0085] Optionally, in a hybrid system, the engine and the electric motor can drive the vehicle separately or simultaneously. When the vehicle speed is high, it may be more efficient for the engine to drive the vehicle directly, especially in scenarios where high-speed driving is required, such as highways. In some situations where high-speed driving is required or more power output is required, the efficiency and performance of the entire vehicle can be improved by starting the engine to drive the vehicle directly. This method may be more efficient than driving the vehicle with an electric motor, especially when driving at high speeds. When the system detects that the vehicle speed is high and higher power output is required, the system will start the engine to drive the vehicle directly. This can increase the power output and acceleration performance of the vehicle, while improving the fuel economy and energy efficiency of the entire vehicle.

[0086] In the embodiment of the present invention, the main advantage of economical starting is that the vehicle is directly driven by starting the engine, thereby improving the efficiency and performance of the vehicle. In some situations where high-speed driving or high power output is required, driving the vehicle directly by the engine can save energy and improve the fuel economy of the entire vehicle. In summary, the setting and implementation of economical starting conditions helps to select a more efficient power output method when the vehicle speed is high, thereby improving the performance and fuel economy of the entire vehicle. By starting the engine to directly drive the vehicle, better performance can be achieved when high-speed driving or higher power output is required.

[0087] Optionally, air conditioning factor starting means that when the driver needs warm air, the engine needs to be started and the heat generated by the engine is used to warm the cab.

[0088] Optionally, in freezing weather or in an environment that requires heating, the driver may require warm air to increase the temperature inside the vehicle and improve driving comfort. The heat generated by the engine can be used to heat the interior of the vehicle to provide a comfortable driving environment for the driver. In cold weather or when the driver requires warm air, it is necessary to start the engine to use the heat generated by the engine to warm the cab. The heat generated by the engine can be transferred to the cab through the vehicle's heating system to provide a warm driving environment for the driver. Once the system detects that the driver has a need for warm air, the system will start the engine to generate heat. The heat generated when the engine is working will be used by the heating system and sent into the cab through the vents to increase the temperature inside the car and meet the driver's warm air needs.

[0089] In an embodiment of the present invention, the advantage of starting with the air conditioning factor is that by starting the engine and utilizing the heat generated by it to increase the temperature of the cab, the driving comfort of the driver is improved. This method can not only provide a warm driving environment, but also save energy and improve the energy efficiency and energy saving of the entire vehicle. In summary, the setting and implementation of the air conditioning factor starting conditions help to provide driving comfort when the driver has a warm air demand. By starting the engine and utilizing the heat generated by it to increase the temperature of the cab, the driving comfort and user experience of the entire vehicle can be improved. The implementation of this start activation condition helps to improve the humanized configuration and driving comfort of the vehicle.

[0090] Optionally, when the driver opens the bonnet, the engine is always started to prevent the engine from suddenly starting and causing fright to people and other potential dangers. If the engine starts suddenly with the bonnet open, it may cause injury to the driver or other accidents. Therefore, it is a very important safety measure to ensure that the engine remains started in this situation. When the speed difference between the two ends of the clutch is too large, it is necessary to start the engine to reduce the speed difference to protect the safety of the clutch. The clutch is an important component in the transmission system and is used to control the connection and separation between the engine and the gearbox. If the speed difference between the two ends of the clutch is too large, it will cause increased wear of the clutch and may even damage the clutch. By starting the engine to reduce the speed difference, the clutch can be effectively protected, its service life can be extended, and the normal operation of the transmission system can be ensured.

[0091] In summary, safe starting is an important safety measure that can reduce the occurrence of accidents. At the same time, starting the engine to reduce the speed difference is also an important measure to protect the safety of the clutch. In daily driving, you should always pay attention to and comply with relevant safety regulations to ensure the safety of the vehicle and the driver.

[0092] Optionally, when all the necessary conditions for starting are met and at least one of the above starting activation conditions is met, the system controls the engine to start, indicating that the vehicle needs the engine to provide power to meet driving needs. In this case, the system will start the engine and provide the required power and torque as needed to ensure normal driving of the vehicle.

[0093] As an optional implementation method, step S104, in response to the first state information and the second state information satisfying the starting condition of the engine, controls the piston in the engine to discharge the remaining gas in the cylinder of the engine, including: in response to the first state information and the second state information satisfying the starting condition, controls the engine to idle, causes the piston to perform reciprocating motion in the cylinder, and discharges the remaining gas in the cylinder.

[0094] In this embodiment, when the first state information and the second state information meet the starting conditions of the engine and the piston in the engine is controlled to discharge the remaining gas in the cylinder, the engine can be controlled to idle so that the piston performs reciprocating motion in the cylinder to discharge the remaining gas in the cylinder.

[0095] Optionally, the starting process of the hydrogen engine includes hydrogen sweeping, dragging to the hydrogen injection ignition speed, speed maintenance stage and successful starting.

[0096] Optionally, during the start-up process of a hydrogen engine, hydrogen scavenging is a very important step to ensure combustion stability.

[0097] Optionally, the main purpose of hydrogen sweeping is to remove residual hydrogen in the cylinder to prevent abnormal combustion during ignition and combustion, thereby affecting the performance and stability of the engine.

[0098] Optionally, during the hydrogen sweeping process, the generator will provide torque to drag the engine to idle. This can expel the residual hydrogen in the cylinder through the reciprocating motion of the piston in the cylinder. The reciprocating motion of the piston in the cylinder can help push the hydrogen out of the cylinder to ensure that the gas in the cylinder is clean. After a certain number of idling, for example, idling four times, it can ensure that the hydrogen in the cylinder is fully discharged and ready for subsequent ignition and combustion.

[0099] In the embodiment of the present invention, the residual hydrogen in the cylinder can be effectively removed through the hydrogen sweeping process, thereby ensuring the combustion stability of the engine. This helps to avoid abnormal combustion and improve the efficiency and reliability of the engine. In summary, hydrogen sweeping is an essential step in the starting process of a hydrogen engine. By controlling the generator to drag the engine to idle, the hydrogen in the cylinder is expelled to ensure the stability of combustion. The execution of this step can effectively improve the performance and reliability of the engine and ensure the normal operation of the vehicle.

[0100] As an optional implementation method, step S106 adjusts the engine speed based on the torque, including: detecting the speed to obtain a detection result; in response to the detection result that the speed is less than a speed threshold, providing torque to the engine to make the speed reach the speed threshold.

[0101] In this embodiment, in the process of adjusting the engine speed based on torque, the speed can be detected to obtain a detection result. When the detection result is that the speed is less than the speed threshold, torque can be provided to the engine to make the speed reach the speed threshold.

[0102] Optionally, during the starting process of a hydrogen engine, dragging the engine to the hydrogen injection ignition speed is a key step to ensure that the engine reaches the appropriate speed at ignition to achieve normal combustion.

[0103] Optionally, the main purpose of dragging the engine to the hydrogen injection ignition speed is to ensure that the engine reaches the appropriate speed at ignition to ensure combustion stability and efficiency.

[0104] As an optional embodiment, step S108, in response to the adjusted speed reaching the speed threshold, controls the engine ignition to control the engine to enter a starting state, including: in response to the speed reaching the speed threshold, controls the engine management system of the engine to send an ignition command to the engine; in response to the engine receiving the ignition command, controls the engine ignition; the method also includes: adjusting the torque of the generator in the vehicle to a torque threshold, wherein the torque threshold is less than the torque corresponding to the speed threshold.

[0105] In this embodiment, in the process of controlling the engine ignition to control the engine to enter the starting state, when the speed reaches the speed threshold, the engine management system of the engine can be controlled to send an ignition command to the engine. When the engine receives the ignition command, the engine ignition can be controlled. The torque of the generator in the vehicle can also be adjusted to a torque threshold, wherein the torque threshold is less than the torque corresponding to the speed threshold. The ignition command can be a hydrogen injection ignition command.

[0106] Optionally, if the engine fails to reach the hydrogen injection ignition speed after the hydrogen sweep process is completed, the generator drag torque needs to be increased. This means that the generator will provide more torque to accelerate the engine speed. Once the engine speed reaches the hydrogen injection ignition speed, the system will send a hydrogen injection command to the Engine Management System (EMS). EMS will control the engine ignition and start the combustion process. At the same time, to avoid excessive drag on the engine, the system will gradually reduce the generator drag torque to ensure that the engine can maintain a stable speed on its own after ignition.

[0107] In an embodiment of the present invention, by dragging the engine to the hydrogen injection ignition speed, it is possible to ensure that the engine has a sufficient speed at the time of ignition to ensure the stability and efficiency of combustion. The appropriate speed is crucial to the quality of combustion and engine performance. In summary, dragging the engine to the hydrogen injection ignition speed is a key step to ensure the normal start of the hydrogen engine. By timely adjusting the drag torque of the generator, it is ensured that the engine can reach the appropriate speed at the time of ignition, thereby ensuring the normal operation and combustion efficiency of the engine.

[0108] Optionally, during the starting process of the hydrogen engine, the speed maintenance phase is a key step, which aims to ensure that the engine can maintain a stable speed after successful ignition.

[0109] As an optional embodiment, the method further includes: in the process of controlling the engine ignition based on the ignition instruction, performing closed-loop control on the rotational speed to maintain the rotational speed.

[0110] In this embodiment, during the process of controlling the engine ignition, the rotational speed may also be controlled in a closed loop to maintain the rotational speed.

[0111] Optionally, the main purpose of the speed maintenance stage is to perform closed-loop speed control through the generator after successful ignition, due to the poor combustion stability in the initial stage of ignition, to ensure that the engine speed remains within a stable range. When the EMS feeds back the ignition success signal, the system will enter the speed maintenance stage. In this stage, the generator will perform closed-loop control based on the real-time speed data and adjust the output torque to maintain the engine speed stability. Due to the poor combustion stability in the initial stage of ignition, the engine may experience speed fluctuations or instability. Through real-time monitoring and feedback adjustment, the generator can adjust the output torque in time to keep the engine speed within an appropriate range. Through speed closed-loop control, the system can effectively cope with the speed fluctuations caused by unstable combustion in the initial stage of ignition, ensure that the engine can run smoothly, and be prepared for subsequent work.

[0112] In the embodiment of the present invention, the execution of the speed maintenance phase can ensure that the engine can maintain a stable speed after successful ignition, avoiding speed fluctuations or abnormal conditions caused by unstable combustion in the early stage of ignition. Through the closed-loop control of the generator, the stable operating state of the engine can be effectively maintained. In summary, the speed maintenance phase plays an important role in the hydrogen engine starting process. Through the closed-loop speed control of the generator, it is ensured that the engine can maintain a stable speed after successful ignition, thereby improving the combustion efficiency and the performance stability of the engine.

[0113] Optionally, during the starting process of the hydrogen engine, the successful starting stage is a key determination point for confirming that the engine has been successfully ignited and can work normally. The main purpose of the successful starting stage is to monitor the engine's torque signal to ensure that the engine can stably follow the target torque after ignition, thereby determining whether the engine ignition is successful and whether the engine can work normally.

[0114] Optionally, once the engine is ignited and running, the EMS will monitor and feedback the engine's torque signal in real time. During the successful start phase, the system will compare the difference between the actual torque and the target torque. If the actual torque stably follows the target torque, the system will consider the ignition successful. The engine's torque signal stably following the target torque indicates that the engine can work normally and provide the required power output, which means that the engine has been successfully ignited and is in normal operation.

[0115] In the embodiment of the present invention, the determination of the successful start stage is crucial to confirm whether the engine start is successful. By monitoring and comparing the torque signal of the engine, the system can promptly detect any unsuccessful ignition or abnormal operation to ensure that the engine can operate normally. The successful start stage is an important part of the hydrogen engine starting process. By real-time monitoring and comparing the torque signal of the engine, the system can determine whether the engine ignition is successful and ensure that the engine can provide stable power output. The execution of this stage helps to ensure the normal operation of the engine and improve the performance stability of the vehicle.

[0116] As an optional embodiment, the method further includes: in response to the first state information and the second state information satisfying a stop condition of the engine, controlling the engine to enter a stop state.

[0117] In this embodiment, when the first state information and the second state information meet the engine stop condition, the engine can be controlled to enter a stop state.

[0118] Optionally, when the first state information and the second state information satisfy the engine stop condition, it means that the vehicle and the engine are in a specific state and meet the set conditions for engine stop.

[0119] Optionally, analyzing the first state information and the second state information: First, the first state information and the second state information need to be analyzed to determine whether the current vehicle and engine states meet the stop conditions. Such information may include engine temperature, vehicle speed, oil pressure, power system status, etc. According to the analysis results of the first state information and the second state information, it is determined whether the current vehicle and engine states meet the stop conditions. The stop conditions may include situations such as the engine temperature is too high, the vehicle speed is zero, and the engine is not operating normally. Once it is confirmed that the first state information and the second state information meet the stop conditions, the engine can be controlled to enter the stop state through the EMS. This may involve operations such as shutting off the fuel supply, cutting off the ignition system, and stopping the cylinder movement. By controlling the engine management system, the engine will gradually reduce the speed and eventually stop running. After stopping the engine, the vehicle will no longer provide power, and the various components inside the engine will also stop working. Once the engine stops running, it can be confirmed through the monitoring system that the engine has entered the stop state. Ensuring that the engine stops safely is crucial to the safety of the vehicle and the driver.

[0120] The above method can achieve safe stopping of the engine. The engine management system plays a key role in this process, ensuring that the engine can stop smoothly when the stopping conditions are met, thereby ensuring the safety of the vehicle and the driver.

[0121] As an optional implementation method, the stop condition includes a necessary stop condition, which includes: the gas supply system of the engine is in a normal working state in the first state information; there is no fault in the engine in the first state information; and the vehicle is in a powered-on state in the second state information.

[0122] In this embodiment, the stop condition may include a necessary stop condition, which may include that the gas supply system of the engine is in a normal working state in the first state information, the engine has no faults in the first state information, and the vehicle is in a powered-on state in the second state information.

[0123] Optionally, the stop condition includes a necessary stop condition, and the necessary stop condition includes that the gas supply system of the engine is in a normal working state and there is no fault in the engine in the first state information, and the vehicle is in a powered-on state in the second state information.

[0124] Optionally, the gas supply system is critical to the normal operation of the engine. Ensuring that the gas supply system is operating normally means being able to continuously supply sufficient gas (such as fuel and air) to the engine to support the engine's combustion process. If the gas supply system is faulty or malfunctioning, it will cause insufficient or unstable engine combustion, affecting the performance of the engine and eventually stopping. The engine must be ensured to be free of any faults or problems before stopping. The normal operating state of the engine is a prerequisite for stopping the engine. Only when there is no fault in the engine can the engine be guaranteed to stop smoothly. The vehicle being powered on means that the vehicle's electrical system is operating normally and can provide the necessary power support for stopping the engine. The normal operation of the power system is critical to ensuring that the engine can stop smoothly. If there is a problem with the vehicle's electrical system, it may cause the engine to fail to shut down normally when it stops or create other safety hazards.

[0125] In summary, the necessary conditions for stopping include the normal gas supply system of the engine, the absence of engine faults, and the vehicle being powered on. The satisfaction of these conditions is crucial to ensure that the engine can be stopped safely and smoothly. Before stopping the engine, it is necessary to carefully check and ensure that these necessary conditions are met to ensure the safe stopping of the engine and the normal operation of the vehicle.

[0126] As an optional implementation method, the stop condition includes a stop activation condition, which includes: the sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the working efficiency of the engine in the first state information is lower than the working efficiency threshold; the battery power information in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the power generation capacity of the generator is lower than the power generation capacity threshold; the vehicle speed in the first state information reaches the vehicle speed threshold; there is a heating demand in the vehicle in the first state information; the hood of the vehicle in the first state information is in an open state, and / or the speed difference between the two ends of the clutch of the vehicle in the first state information is greater than the speed difference threshold.

[0127] In this embodiment, the stop condition may include a stop activation condition, and the stop activation condition includes that the sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle. The available discharge power of the battery in the first state information is lower than the power threshold. The working efficiency of the engine in the first state information is lower than the working efficiency threshold. The power information of the battery in the first state information is lower than the power information threshold, the towing capacity of the generator in the first state information is lower than the towing capacity threshold, and / or the power generation capacity of the generator is lower than the power generation capacity threshold. The speed of the vehicle in the first state information reaches the speed threshold. There is a heating demand in the vehicle in the first state information. The hood of the vehicle in the first state information is in an open state, and / or the speed difference between the two ends of the clutch of the vehicle in the first state information is greater than the speed difference threshold.

[0128] Optionally, for power starting, when the sum of driving demand and vehicle load demand is greater than the power that the power battery can provide, it is necessary to start the hydrogen engine to meet the driver's driving demand. For power battery factor starting, when the available discharge power of the power battery is low due to environmental or other factors, it is necessary to start the hydrogen engine to ensure that the generator has sufficient torque to drag the engine, and to ensure the NVH performance and hydrogen sweeping process of the starting process. For engine performance starting, in order to ensure the working efficiency of the engine, it is necessary to start the engine so that the water temperature of the engine is in the range of efficient operation and reduce hydrogen consumption. For SOC balance starting, when the SOC of the power battery is lower than a certain value, in order to ensure SOC balance, it is necessary to start the engine to generate electricity. For generator factor starting, when the towing capacity or power generation capacity of the generator is insufficient, it is necessary to start the engine in time to prevent subsequent capacity from decreasing. For economic starting, when the vehicle speed is high, the engine directly drives the vehicle with the highest efficiency, and it is necessary to start the engine to drive the vehicle. For air conditioning factor starting, when the driver has a warm air demand, it is necessary to start the engine to generate heat to warm the cab. Safety start: In certain situations, the engine needs to be started continuously, such as when the driver opens the hood to prevent danger from sudden start, or to reduce the speed difference to protect the clutch safety.

[0129] In summary, different starting situations correspond to different needs and conditions, including meeting driving needs, ensuring engine efficiency, maintaining battery balance, coping with insufficient generator capacity, etc. In practical applications, understanding and considering these starting situations can effectively optimize vehicle performance and safety.

[0130] As an optional implementation mode, the method also includes: in response to the first state information and the second state information not satisfying at least one of the necessary stop conditions, determining that the first state information and the second state information satisfy the stop condition; in response to the first state information and the second state information satisfying the necessary stop condition and not satisfying the stop activation condition, determining that the first state information and the second state information satisfy the stop condition.

[0131] In this embodiment, when the first state information and the second state information do not satisfy at least one of the necessary stop conditions, it can be determined that the stop condition is satisfied. When the first state information and the second state information satisfy the necessary stop condition and do not satisfy the stop activation condition, it can be determined that the stop condition is satisfied.

[0132] Optionally, when one of the necessary conditions for stopping is not met, or when all the necessary conditions for stopping are met but none of the stop activation conditions are met, the system will control the engine to stop. This may be because the current driving needs of the vehicle do not require the engine to provide power, or the power battery has enough available power to meet the needs, or other factors result in the engine not being required to work. In this case, the system will stop the engine to save fuel and reduce emissions, and improve the energy efficiency of the vehicle. In summary, the system controls the start and stop of the engine according to the actual needs of the vehicle and environmental conditions to ensure the power performance and economy of the vehicle. This intelligent engine control system can effectively improve the overall performance and driving experience of the vehicle.

[0133] As an optional embodiment, in response to the first state information and the second state information satisfying the stop condition of the engine, the engine is controlled to enter a stop state, including: in response to the first state information and the second state information satisfying the stop condition, sending negative torque data to the engine management system of the engine; in response to the engine management system receiving the negative torque data, controlling the engine management system to stop spraying gas and reduce the speed to make the engine enter a stop state; the method also includes: adjusting the crankshaft position of the engine to the target position.

[0134] In this embodiment, when the first state information and the second state information meet the stop condition, negative torque data can be sent to the engine management system. When the engine management system receives the negative torque data, it can control the engine management system to stop ejecting gas and reduce the speed to put the engine into a stop state. The crankshaft position of the engine can also be adjusted to the target position.

[0135] Optionally, the stopping process of the hydrogen engine includes stopping hydrogen injection, rapidly reducing the speed and adjusting the crankshaft position.

[0136] Optionally, stop hydrogen injection. When the system needs to stop the engine, a large negative torque command is sent to the engine management system (EMS). After receiving the negative torque, the EMS stops injecting hydrogen. This step is to stop fuel injection and gradually stop the engine. Rapidly reduce the speed. After the engine stops injecting hydrogen, the generator will output negative torque to quickly reduce the engine speed. When the speed drops to a lower value, the generator will cancel the negative torque, and the engine will continue to reduce the speed by its own friction torque until it stops. Crankshaft position adjustment. After the engine stops completely, the generator adjusts the position of the engine crankshaft to a specific position to ensure that the cylinder pressure is minimized at the next start, thereby improving the NVH performance of the starting process. The above method helps to reduce vibration and noise during starting and improve driving comfort.

[0137] In general, the above methods play an important role in the engine stopping process. By gradually stopping hydrogen injection, quickly reducing the speed and adjusting the crankshaft position, the engine can be effectively stopped safely and prepared for the next start, while improving the driving comfort and performance of the vehicle.

[0138] Optionally, during the stopping process of the hydrogen engine, stopping the hydrogen injection is a crucial step. The main purpose of stopping the hydrogen injection is to stop the fuel injection in time when the engine needs to stop, so as to gradually reduce the fuel supply and eventually stop the engine. -When the system needs to stop the engine, a large negative torque command will be sent to the EMS. After receiving the negative torque command, the EMS will immediately stop the hydrogen injection operation, that is, stop supplying fuel hydrogen to the hydrogen engine. Stopping the hydrogen injection will cause the engine combustion process to gradually weaken, and eventually the engine can stop smoothly. Stopping the hydrogen injection is a key step in stopping the engine. By stopping the hydrogen injection, the gradual weakening of the combustion process can be effectively controlled to ensure the smooth shutdown of the engine and avoid abnormal situations caused by the continued supply of fuel.

[0139] In summary, stopping hydrogen injection is a very important control step in the process of stopping a hydrogen engine. By sending a negative torque command to the EMS to stop hydrogen injection, the engine combustion process is gradually weakened, thereby achieving a smooth engine stop. The execution of this step helps to ensure the safe stopping of the engine and the normal operation of the vehicle.

[0140] Optionally, during the shutdown process of the hydrogen engine, rapid speed reduction is a key step, which aims to quickly reduce the engine speed to achieve safe shutdown. The main purpose of rapid speed reduction is to quickly reduce the engine speed by outputting negative torque through the generator after the hydrogen injection stops, so as to provide conditions for the safe shutdown of the engine. After the engine stops injecting hydrogen, the generator outputs negative torque, which means that the generator will provide a reverse torque to slow down the engine speed. Under the action of negative torque, the engine speed will drop rapidly until the speed drops to a lower value. When the engine speed drops to the target value, the generator will cancel the negative torque, and the engine will continue to reduce the speed by its own friction torque until it stops. The process of rapid speed reduction ensures the safety and controllability of the engine during the shutdown process. By outputting negative torque, the engine speed can drop rapidly, reducing the shutdown time and improving the efficiency and safety of the entire shutdown process.

[0141] In summary, rapid speed reduction is a key step in the shutdown process of a hydrogen engine. By outputting negative torque through the generator, the engine speed is quickly reduced, providing a guarantee for the safe shutdown of the engine. The execution of this process helps to reduce the engine's downtime, protect engine components, and ensure a smooth shutdown process.

[0142] Optionally, during the stopping process of the hydrogen engine, crankshaft position adjustment is an important step aimed at adjusting the position of the engine crankshaft to improve the performance and comfort of the next starting process. The main purpose of crankshaft position adjustment is to adjust the crankshaft position of the engine to a specific position through the control of the generator after the engine is completely stopped. This ensures that the cylinder pressure is minimized at the next start, thereby improving the NVH performance of the starting process. Once the engine stops completely, the generator will control the crankshaft position of the engine for adjustment. Through the control of the generator, the crankshaft position will be adjusted to a specific position, usually to minimize the pressure of the gas in the cylinder to reduce the compression resistance and vibration at the next start. The adjusted crankshaft position can help reduce vibration and noise during starting, and improve the vehicle's starting smoothness and driving comfort.

[0143] In the embodiment of the present invention, the crankshaft position adjustment plays a key role in the shutdown process of the hydrogen engine. By adjusting the crankshaft position, the cylinder pressure at the next start can be reduced, the starting resistance can be reduced, the smoothness and comfort of the starting process can be improved, and the noise and vibration can be reduced, thereby improving the overall NVH performance of the vehicle. Crankshaft position adjustment is an important part of the shutdown process of the hydrogen engine. By adjusting the crankshaft position, the performance and driving comfort of the next start process can be effectively improved, while the noise and vibration at the start can be reduced, providing a better experience for the normal operation and driving of the vehicle.

[0144] In an embodiment of the present invention, if it is necessary to start the engine in the vehicle, the first state information of the engine in the vehicle and the second state information of the vehicle can be collected, and the first state information is used to analyze whether the engine is faulty, and the second state information is used to analyze the running state of the vehicle before controlling the engine. Through the first state information and the second state information, it is judged whether the state of the engine and the vehicle meets the starting condition of the engine. If it is satisfied, the piston in the engine can be controlled to remove the remaining gas in the cylinder of the engine, that is, the engine is subjected to hydrogen sweeping control. After the remaining gas is removed, the torque of the engine can be obtained. Based on the torque, the speed of the engine is adjusted. When the speed of the engine is adjusted to the speed threshold, the engine ignition can be controlled so that the engine enters the starting state. In this embodiment, before the engine is started, the remaining gas in the cylinder of the engine before starting can be swept out by hydrogen sweeping control to ensure the stability of combustion, thereby achieving the purpose of effectively reducing the vibration of the engine in the starting stage, improving the stability of combustion during the starting process, and achieving the purpose of effective vehicle drivability and power, thereby achieving the technical effect of effectively controlling the engine in the vehicle and solving the technical problem of being unable to effectively control the engine in the vehicle.

[0145] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0146] At present, with the increasingly stringent emission regulations, hydrogen as the cleanest energy has attracted much attention. Hydrogen fuel cells are currently the mainstream, and hydrogen internal combustion engines have also begun to develop in recent years. Due to the high hydrogen pressure of hydrogen engines and the harsh hydrogen combustion environment, the impact in the cylinder during the start-up process of hydrogen engines is large, and the output torque is not smooth at the beginning of combustion. Therefore, there is still a technical problem that the engine in the vehicle cannot be effectively controlled.

[0147] The embodiment of the present invention proposes a control method for starting and stopping a hydrogen internal combustion engine. The method effectively reduces the vibration of the hydrogen engine during the start-stop stage by applying control means such as crankshaft position control and hydrogen sweeping control during the start-up stage, and improves the combustion stability and immediacy at the initial start-up stage, thereby effectively ensuring the drivability and power of the whole vehicle. The vibration problem during the start-up stage of the hydrogen engine is solved by introducing control means such as crankshaft position control and hydrogen sweeping control during the start-up stage. Crankshaft position control can help adjust the position and speed of the engine during the start-up process, making the engine run more smoothly. Hydrogen sweeping control can control the supply of hydrogen, make the combustion environment more stable, and reduce vibration and impact. Through the application of these control means, the vibration level of the hydrogen engine during the start-stop stage can be effectively reduced, and the stability and immediacy of combustion can be improved. This can not only improve the problem of uneven output torque at the initial stage of engine start-up, but also improve the drivability and power performance of the whole vehicle, so that the driver can get a better driving experience.

[0148] In general, this embodiment proposes an effective solution to the vibration problem during the start-up process of the hydrogen engine. By applying control means, the drivability and power of the vehicle are improved while ensuring the engine performance. This is of great significance to promoting the development and application of hydrogen engine technology. Thus, the technical effect of effectively controlling the engine in the vehicle is achieved, and the technical problem of being unable to effectively control the engine in the vehicle is solved.

[0149] The embodiments of the present invention are further described below.

[0150] In an embodiment of the present invention, Figure 2 : is a flow chart of a method for controlling the start and stop of a hydrogen internal combustion engine according to an embodiment of the present invention. Figure 2 As shown, the method may include the following steps:

[0151] Step S201, obtaining relevant parameters of the engine and the vehicle.

[0152] In this embodiment, relevant parameters required for start-stop control in the vehicle and the engine can be acquired.

[0153] Step S202, determining whether the necessary conditions for starting and stopping are met.

[0154] In this embodiment, the necessary conditions for starting the hydrogen engine include that the hydrogen supply system operates normally, the hydrogen engine is allowed to start, and the entire vehicle is in a high-voltage power-on state.

[0155] In summary, the necessary conditions for starting a hydrogen engine include the normal operation of the hydrogen supply system, the hydrogen engine has no starting failure and is allowed to start, and the vehicle is in a high-voltage power-on state. Only when these conditions are met at the same time can the hydrogen engine be guaranteed to start smoothly and operate normally. The implementation of these conditions can ensure the safe operation of the hydrogen engine and the performance of the vehicle.

[0156] Step S203, determining whether the start-stop activation condition is met.

[0157] In this embodiment, the activation conditions for starting the hydrogen engine include power starting, power battery factor starting, engine performance starting, SOC balance starting, generator factor starting, economic starting, air conditioning factor starting, safety starting and other aspects.

[0158] Optionally, for power starting, when the sum of driving demand and vehicle load demand is greater than the power that the power battery can provide, it is necessary to start the hydrogen engine to meet the driver's driving demand.

[0159] Optionally, when starting due to power battery factors, if the available discharge power reported by the power battery is low due to environmental or other factors, the hydrogen engine needs to be started to ensure that the generator has sufficient torque to drag the engine, ensure the NVH performance of the starting process, and ensure the hydrogen sweeping process before starting.

[0160] Optionally, the engine performance is started. To ensure the working efficiency of the engine, it is necessary to start the engine so that the water temperature of the engine is within the range of efficient operation and the hydrogen consumption is reduced.

[0161] Optionally, SOC balance start, when the SOC of the power battery is lower than a certain value, in order to ensure SOC balance, it is necessary to start the engine to generate electricity.

[0162] Optionally, the generator factor starts, and when the generator's traction capacity or power generation capacity is insufficient, the engine needs to be started in time. Starting when the traction capacity is insufficient is to prevent the subsequent capacity from continuing to decline, resulting in the engine being unable to haul, and starting when the power generation capacity is insufficient is to prevent the SOC from being consumed too quickly and the power generation cannot be replenished in time.

[0163] Optionally, economical start: when the vehicle speed is high, the engine directly driving the vehicle is most efficient, and it is necessary to start the engine to drive the vehicle.

[0164] Optionally, the air conditioning factor is started. When the driver needs warm air, the engine needs to be started and the heat generated by the engine is used to warm the cab.

[0165] Optionally, safety start, when the driver opens the hood, the engine needs to be started all the time to prevent the engine from suddenly starting and causing fright or other hidden dangers; when the speed difference between the two ends of the clutch is too large, in order to protect the safety of the clutch, the engine needs to be started to reduce the speed difference.

[0166] When all the above necessary starting conditions are met and the start activation conditions are met, the system controls the engine to start; when one of the necessary starting conditions is not met, or when all the necessary starting conditions are met but none of the start activation conditions are met, the system controls the engine to stop.

[0167] Step S204, the engine is started.

[0168] In this embodiment, the starting process of the hydrogen engine includes hydrogen sweeping, dragging to the hydrogen injection ignition speed, speed maintenance stage and successful starting.

[0169] Step S205: hydrogen sweep control.

[0170] In this embodiment, in order to ensure the stability of hydrogen engine combustion, it is necessary to sweep out the residual hydrogen in the cylinder before starting, control the generator to drag the engine to idle, and expel the hydrogen in the cylinder through the reciprocating motion of the piston in the cylinder. The dragging process only requires the engine to idle for 4 circles.

[0171] Step S206, dragging the engine to the hydrogen injection ignition speed.

[0172] In this embodiment, the engine is dragged to the hydrogen injection ignition speed. If the engine does not reach the hydrogen injection ignition speed during the hydrogen sweeping process, it is necessary to increase the generator drag torque. After the engine speed reaches the standard, a hydrogen injection command is sent to the EMS, and the EMS controls the engine ignition while reducing the generator drag torque.

[0173] Step S207, the rotation speed is maintained.

[0174] In this embodiment, during the speed maintenance stage, after receiving the ignition success signal fed back by the EMS, the generator needs to perform speed closed-loop control to maintain the engine speed due to the poor combustion stability in the initial ignition stage.

[0175] Step S208, startup is successful.

[0176] In this embodiment, the start is successful, and when the torque signal reported by the EMS stably follows the target torque, it is considered that the ignition is successful.

[0177] Step S209, engine start and stop.

[0178] In this embodiment, the stopping process of the hydrogen engine includes stopping hydrogen injection, rapidly reducing the speed and adjusting the crankshaft position.

[0179] Step S210, stop spraying hydrogen.

[0180] In this embodiment, hydrogen injection is stopped. When the system requires the engine to be shut down, a large negative torque is sent to the EMS. After receiving the negative torque, the EMS stops injecting hydrogen.

[0181] Step S211, rapidly reduce the rotation speed.

[0182] In this embodiment, the speed is quickly reduced, and after the engine stops injecting hydrogen, the generator outputs negative torque to quickly reduce the engine speed. When the speed is reduced to a lower value, the generator removes the negative torque and reduces the speed by the engine friction torque.

[0183] Step S212, crankshaft position adjustment.

[0184] In this embodiment, the crankshaft position is adjusted, and after the engine is completely stopped, the crankshaft position of the engine is adjusted to a specific position through the generator to minimize the cylinder pressure at the next start, thereby improving the NVH performance of the starting process.

[0185] In an embodiment of the present invention, if it is necessary to start the engine in the vehicle, the first state information of the engine in the vehicle and the second state information of the vehicle can be collected, and the first state information is used to analyze whether the engine is faulty, and the second state information is used to analyze the running state of the vehicle before controlling the engine. Through the first state information and the second state information, it is judged whether the state of the engine and the vehicle meets the starting condition of the engine. If it is satisfied, the piston in the engine can be controlled to remove the remaining gas in the cylinder of the engine, that is, the engine is subjected to hydrogen sweeping control. After the remaining gas is removed, the torque of the engine can be obtained. Based on the torque, the speed of the engine is adjusted. When the speed of the engine is adjusted to the speed threshold, the engine ignition can be controlled so that the engine enters the starting state. In this embodiment, before the engine is started, the remaining gas in the cylinder of the engine before starting can be swept out by hydrogen sweeping control to ensure the stability of combustion, thereby achieving the purpose of effectively reducing the vibration of the engine in the starting stage, improving the stability of combustion during the starting process, and achieving the purpose of effective vehicle drivability and power, thereby achieving the technical effect of effectively controlling the engine in the vehicle and solving the technical problem of being unable to effectively control the engine in the vehicle.

[0186] According to an embodiment of the present invention, a control device for an engine in a vehicle is also provided. It should be noted that the control device for an engine in a vehicle can be used to execute the control method for an engine in a vehicle in embodiment 1.

[0187] Figure 3 Schematic diagram of a control device for an engine in a vehicle according to an embodiment of the present invention. Figure 3 As shown, the control device 300 of the engine in the vehicle may include: an acquisition unit 302 , a first control unit 304 , an adjustment unit 306 and a second control unit 308 .

[0188] The acquisition unit 302 is used to acquire first state information of an engine to be controlled in the vehicle and second state information of the vehicle, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate the running state of the vehicle before controlling the engine.

[0189] The first control unit 304 is used to control the piston in the engine to discharge the remaining gas in the cylinder of the engine in response to the first state information and the second state information satisfying the starting condition of the engine, and obtain the torque of the engine after the remaining gas is discharged.

[0190] The adjustment unit 306 is used to adjust the speed of the engine based on the torque.

[0191] The second control unit 308 is used to control the engine ignition in response to the adjusted speed reaching the speed threshold, so as to control the engine to enter the starting state, wherein the speed threshold is used to represent the speed that meets the ignition requirement of the engine.

[0192] Optionally, the device may also include: a first determination unit, used to determine that the first state information and the second state information meet the necessary conditions for starting the engine in response to the first state information that the gas supply system of the engine is in a normal working state, the first state information that the engine has no faults, and the second state information that the vehicle is in a powered-on state.

[0193] Optionally, the device may also include: a second determination unit, used to determine the first state information that satisfies at least one of the following as the first state information that satisfies the starting condition, including: the sum of the vehicle's driving demand and the vehicle's load demand in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the engine's working efficiency in the first state information is lower than the working efficiency threshold; the battery's power information in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the generator's power generation capacity is lower than the power generation capacity threshold; the vehicle speed in the first state information reaches the vehicle speed threshold; there is a heating demand in the vehicle in the first state information; the vehicle's hood is in an open state in the first state information, and / or the speed difference between the two ends of the vehicle's clutch in the first state information is greater than the speed difference threshold.

[0194] Optionally, the first control unit 304 may include: a first control module, for controlling the engine to idle in response to the first state information and the second state information satisfying the starting condition, so that the piston performs reciprocating motion in the cylinder to expel the remaining gas in the cylinder.

[0195] Optionally, the adjustment unit 306 may include: a first detection module, configured to detect the rotational speed and obtain a detection result; and a providing module, configured to provide torque to the engine in response to the detection result that the rotational speed is less than a rotational speed threshold, so that the rotational speed reaches the rotational speed threshold.

[0196] Optionally, the second control unit 308 may include: a second control module, used to control the engine management system of the engine to send an ignition command to the engine in response to the speed reaching the speed threshold; a third control module, used to control the engine ignition in response to the engine receiving the ignition command. The device may also include: a first adjustment unit, used to adjust the torque of the generator in the vehicle to a torque threshold, wherein the torque threshold is less than the torque corresponding to the speed threshold.

[0197] Optionally, the device may further include: a third control module, configured to control the engine to enter a stop state in response to the first state information and the second state information satisfying a stop condition of the engine.

[0198] Optionally, the device may also include: a third determination unit, used to determine that the first state information and the second state information satisfy the stop condition in response to the first state information and the second state information not satisfying at least one of the necessary stop conditions; a fourth determination unit, used to determine that the first state information and the second state information satisfy the stop condition in response to the first state information and the second state information satisfying the necessary stop condition but not satisfying the stop activation condition.

[0199] Optionally, the third control module may include: a sending submodule, used to send negative torque data to the engine management system of the engine in response to the first state information and the second state information satisfying the stop condition; a control submodule, used to control the engine management system to stop spraying gas and reduce the speed in response to the engine management system receiving the negative torque data, so that the engine enters a stop state; the device may also include: a second adjustment unit, used to adjust the crankshaft position of the engine to a target position.

[0200] In an embodiment of the present invention, first state information of an engine to be controlled in a vehicle and second state information of the vehicle are acquired by an acquisition unit 302, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate the running state of the vehicle before controlling the engine; the first control unit 304 responds to the first state information and the second state information to meet the starting conditions of the engine, controls the piston in the engine, discharges the remaining gas in the cylinder of the engine, and acquires the torque of the engine after the remaining gas is removed; the adjustment unit 306 adjusts the speed of the engine based on the torque; the second control unit 308 responds to the adjusted speed reaching a speed threshold, controls the engine ignition, and controls the engine to enter a starting state, wherein the speed threshold is used to indicate the speed that meets the ignition requirement of the engine, thereby solving the technical problem that the engine in the vehicle cannot be effectively controlled, and achieving the technical effect that the engine in the vehicle can be effectively controlled.

[0201] According to an embodiment of the present invention, there is further provided a computer-readable storage medium, the storage medium including a stored program, wherein the program executes the control method of an engine in a vehicle in Embodiment 1.

[0202] According to an embodiment of the present invention, a processor is further provided, the processor being used to run a program, wherein the method for controlling an engine in a vehicle in embodiment 1 is executed when the program is run.

[0203] The embodiment of the present application also provides a computer program product. Optionally, in the present embodiment, the computer program product may include a computer program, and when the computer program is executed by a processor, the control method of the engine in the vehicle of the embodiment of the present application is implemented.

[0204] According to an embodiment of the present invention, a vehicle is further provided. The vehicle is used to execute the method for controlling an engine in the vehicle according to an embodiment of the present invention.

[0205] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0206] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0207] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0208] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0209] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0210] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, Read-Only Memory (ROM), Random Access Memory (RAM), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program codes.

[0211] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for controlling an engine in a vehicle, It is characterized in that include: Acquire first state information of an engine to be controlled in a vehicle, and second state information of the vehicle, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate the running state of the vehicle before controlling the engine; In response to the first state information and the second state information satisfying a starting condition of the engine, controlling a piston in the engine to discharge residual gas in a cylinder of the engine, and obtaining a torque of the engine after the residual gas is discharged; adjusting a speed of the engine based on the torque; In response to the adjusted speed reaching a speed threshold, the engine ignition is controlled to control the engine to enter a starting state, wherein the speed threshold is used to represent a speed that meets an ignition requirement of the engine.

2. The method according to claim 1, It is characterized in that The starting condition includes a necessary starting condition, wherein after obtaining first state information of an engine to be controlled in a vehicle and second state information of the vehicle, the method further includes: In response to the first state information indicating that the gas supply system of the engine is in a normal working state, the first state information indicating that the engine has no faults, and the second state information indicating that the vehicle is in a powered-on state, it is determined that the first state information and the second state information satisfy the necessary conditions for starting the engine.

3. The method according to claim 2, It is characterized in that The start condition includes a start activation condition, wherein the first state information satisfying at least one of the following is determined as the first state information satisfying the start condition, including: The sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle; The available discharge power of the battery in the first state information is lower than a power threshold; The working efficiency of the engine in the first state information is lower than a working efficiency threshold; The battery power information in the first status information is lower than a battery power information threshold; The towing capacity of the generator in the vehicle in the first state information is lower than a towing capacity threshold, and / or the power generation capacity of the generator is lower than a power generation capacity threshold; The speed of the vehicle in the first state information reaches a speed threshold; The first state information indicates that the vehicle has a heating demand; The hood of the vehicle in the first state information is in an open state, and / or the speed difference between both ends of the clutch of the vehicle in the first state information is greater than a speed difference threshold.

4. The method according to claim 1, It is characterized in that In response to the first state information and the second state information satisfying the starting condition of the engine, controlling a piston in the engine to discharge the remaining gas in the cylinder of the engine comprises: In response to the first state information and the second state information satisfying the starting condition, the engine is controlled to idle, so that the piston performs reciprocating motion in the cylinder to discharge the remaining gas in the cylinder.

5. The method according to claim 4, It is characterized in that Adjusting the speed of the engine based on the torque includes: Detecting the rotation speed to obtain a detection result; In response to the detection result that the rotation speed is less than the rotation speed threshold, the torque is provided to the engine to make the rotation speed reach the rotation speed threshold.

6. The method according to claim 5, It is characterized in that In response to the adjusted speed reaching a speed threshold, controlling the engine ignition to control the engine to enter a starting state, including: In response to the speed reaching the speed threshold, an engine management system controlling the engine sends an ignition command to the engine; In response to the engine receiving the ignition command, controlling the engine to ignite; The method further includes: adjusting the torque of the generator in the vehicle to a torque threshold, wherein the torque threshold is smaller than the torque corresponding to the speed threshold.

7. The method according to claim 6, It is characterized in that The method further comprises: In the process of controlling the engine ignition based on the ignition command, the rotation speed is controlled in a closed loop to maintain the rotation speed.

8. The method according to claim 1, It is characterized in that The method further comprises: In response to the first state information and the second state information satisfying a stop condition of the engine, the engine is controlled to enter a stop state.

9. The method according to claim 8, It is characterized in that The stop condition includes a necessary stop condition, and the necessary stop condition includes: the gas supply system of the engine is in a normal working state in the first state information; the engine has no fault in the first state information; and the vehicle is in a powered-on state in the second state information.

10. The method according to claim 9, It is characterized in that The stop condition includes a stop activation condition, which includes: the sum of the driving demand of the vehicle and the load demand of the vehicle in the first state information is greater than the power provided by the battery in the vehicle; the available discharge power of the battery in the first state information is lower than the power threshold; the working efficiency of the engine in the first state information is lower than the working efficiency threshold; the power information of the battery in the first state information is lower than the power information threshold; the towing capacity of the generator in the vehicle in the first state information is lower than the towing capacity threshold, and / or the power generation capacity of the generator is lower than the power generation capacity threshold; the speed of the vehicle in the first state information reaches the speed threshold; there is a heating demand in the vehicle in the first state information; the hood of the vehicle in the first state information is in an open state, and / or the speed difference between the two ends of the clutch of the vehicle in the first state information is greater than the speed difference threshold.

11. The method according to claim 10, It is characterized in that The method further comprises: In response to the first state information and the second state information not satisfying at least one of the necessary stop conditions, determining that the first state information and the second state information satisfy the stop condition; In response to the first state information and the second state information satisfying the stop necessary condition and not satisfying the stop activation condition, it is determined that the first state information and the second state information satisfy the stop condition.

12. The method according to claim 8, It is characterized in that In response to the first state information and the second state information satisfying a stop condition of the engine, controlling the engine to enter a stop state includes: In response to the first state information and the second state information satisfying the stop condition, sending negative torque data to an engine management system of the engine; In response to the engine management system receiving the negative torque data, controlling the engine management system to stop ejecting the gas and reduce the speed so that the engine is in the stopped state; The method further includes adjusting a crankshaft position of the engine to a target position.

13. A control device for an engine in a vehicle, It is characterized in that include: an acquisition unit, configured to acquire first state information of an engine to be controlled in a vehicle, and second state information of the vehicle, wherein the first state information is used to indicate whether the engine to be controlled is faulty, and the second state information is used to indicate a running state of the vehicle before controlling the engine; a first control unit, configured to control a piston in the engine to discharge residual gas in a cylinder of the engine in response to the first state information and the second state information satisfying a starting condition of the engine, and to obtain a torque of the engine after the residual gas is discharged; an adjustment unit, configured to adjust a rotation speed of the engine based on the torque; The second control unit is used to control the engine ignition in response to the adjusted speed reaching a speed threshold so as to control the engine to enter a starting state, wherein the speed threshold is used to represent a speed that meets the ignition requirement of the engine.

14. A processor, It is characterized in that The processor is used to run a program, wherein the program, when run by the processor, executes the method for controlling an engine in a vehicle according to any one of claims 1 to 12.

15. A computer-readable storage medium, It is characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for controlling an engine in a vehicle according to any one of claims 1 to 12.

16. An electronic device, It is characterized in that The invention comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the control method of an engine in a vehicle according to any one of claims 1 to 12.

17. A computer program product, It is characterized in that The invention comprises a computer program, which, when executed by a processor, implements the control method of an engine in a vehicle according to any one of claims 1 to 12.

18. A vehicle, It is characterized in that Used to execute the control method of an engine in a vehicle as claimed in any one of claims 1 to 12.

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