Control method, device, storage medium, and electronic device for hybrid vehicle

Abstract

The embodiment of the present disclosure provides a control method and device of a hybrid vehicle, a storage medium and an electronic device, the control method comprises: acquiring a particulate matter accumulation amount and a temperature value of the particulate trapping device; in the case that the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold, performing particulate trapping device temperature control; and / or in the case that the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, controlling to perform particulate matter removal control. The embodiment of the present disclosure can quickly improve the trapping efficiency of the particulate trapping device, reduce the influence of the particulate matter removal control process on the performance of the whole vehicle, improve the user experience, and has a very beneficial effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a control method and device for a hybrid vehicle, a storage medium and an electronic device. BACKGROUND

[0002] In the national six emission regulations, the particulate emission amount is an important detection item, and the installation of a particulate capturing device in the exhaust system is an effective means to reduce the particulate emission amount. The particulate accumulation amount in the particulate capturing device needs to be monitored in real time and removed to ensure that the particulate capturing device can work normally. Since the hybrid vehicle has frequent start-stop, the amount and quality of particulate emissions are higher than those of traditional vehicles, and effective control of the particulate accumulation amount in the particulate capturing device is necessary.

[0003] In the prior art, for the control of the particulate accumulation amount in the particulate capturing device of a hybrid vehicle, some technical solutions propose to reduce the accumulation of particulates by controlling the SOC (SOC, full name "State of Charge", i.e. state of charge, used to reflect the remaining capacity of the power battery, defined as the ratio of the remaining capacity to the capacity of the power battery, commonly expressed in percentage) to perform engine torque suppression control; some technical solutions propose to remove the accumulation of particulates by controlling the motor to charge the engine at idle; and some other technical solutions propose to control the engine speed to suppress the deterioration of the filter caused by excessive heating of the particulate capturing device. The existing technical solutions are all from a single perspective to control the particulate capturing device, and the elimination effect of the particulate accumulation amount is slow.

[0004] There are few current technical solutions on how to use the system advantages of the hybrid system to effectively control the particulate accumulation amount in the particulate capturing device while ensuring that other vehicle performance is not affected. SUMMARY

[0005] The purpose of the embodiments of the present disclosure is to provide a control method and device for a hybrid vehicle, a storage medium and an electronic device to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the embodiments of the present disclosure adopt the following technical solutions:

[0007] A control method for a hybrid vehicle, the hybrid vehicle comprising at least an engine, an electric motor, a power battery and a particulate capturing device, the control method comprising:

[0008] obtaining a particulate accumulation amount and a temperature value of the particulate capturing device;

[0009] performing particulate capturing device temperature control when the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold; and / or

[0010] performing particulate matter removal control when the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold.

[0011] In some embodiments, the control method comprises:

[0012] determining whether the particulate matter accumulation amount is less than a second accumulation threshold or a temperature value of the particulate capturing device is less than a second temperature threshold.

[0013] In some embodiments, the control method comprises:

[0014] continuing to acquire the particulate matter accumulation amount when the particulate matter accumulation amount is greater than or equal to a second accumulation threshold or performing particulate capturing device temperature control when a temperature value of the particulate capturing device is less than a second temperature threshold, the second temperature threshold being less than the first temperature threshold.

[0015] In some embodiments, the control method comprises:

[0016] controlling the engine based on a first control strategy when the SOC of the power battery is greater than or equal to a first SOC threshold, the first control strategy at least comprising controlling an engine speed to be a highest speed that satisfies a vehicle NVH performance at a current vehicle speed, controlling the engine to be stopped when the vehicle is stopped, controlling an output power of the engine to be a demand power of the vehicle divided by an efficiency of a power generation system, and controlling to delay an engine ignition angle.

[0017] In some embodiments, the control method comprises:

[0018] controlling the engine based on a second control strategy when the SOC of the power battery is less than the first SOC threshold and less than or equal to a second SOC threshold, the second control strategy at least comprising controlling an engine speed to be a highest speed that satisfies a vehicle NVH performance at a current vehicle speed, controlling the engine to be idling when the vehicle is stopped, controlling an output power of the engine to be a maximum power of the engine under a current working condition that satisfies the vehicle NVH performance, and controlling to delay an engine ignition angle, the second SOC threshold being less than the first SOC threshold.

[0019] In some embodiments, the control method comprises:

[0020] In a case where the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, the engine is controlled based on a third control strategy, the third control strategy at least including controlling the engine speed to be a highest speed that meets the vehicle NVH performance at a current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be a power that optimizes the efficiency of the power generation system at a current engine speed, and controlling the engine ignition angle to be delayed.

[0021] In some embodiments, the control method comprises:

[0022] controlling the engine speed to be a highest speed that meets the vehicle NVH performance at a current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the engine to be driven by the generator in a case where the SOC of the power battery is greater than the second SOC threshold, and controlling the engine to stop fuel injection.

[0023] The embodiments of the present disclosure also provide a control device for a hybrid vehicle, the hybrid vehicle at least including an engine, an electric motor, a power battery, and a particulate trapping device, comprising:

[0024] an acquisition module configured to acquire a particulate accumulation amount and a temperature value of the particulate trapping device;

[0025] a cleaning control module configured to control particulate cleaning control in a case where the particulate accumulation amount is greater than a first accumulation threshold and the temperature value is greater than a first temperature threshold; and / or

[0026] a temperature control module configured to perform particulate trapping device temperature control in a case where the particulate accumulation amount is greater than the first accumulation threshold and the temperature value is less than or equal to the first temperature threshold.

[0027] The embodiments of the present disclosure also provide a storage medium storing a computer program, wherein the computer program is executed by a processor to implement the steps of the method according to any one of the preceding embodiments.

[0028] The embodiments of the present disclosure also provide an electronic device including at least a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method according to any one of the preceding embodiments when executing the computer program stored in the memory.

[0029] The embodiments of the present disclosure can quickly improve the trapping efficiency of the particulate trapping device, reduce the impact of the particulate cleaning control process on the vehicle performance, improve the user experience, and have very beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0031] Figure 1 is a flow chart of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure;

[0032] Figure 2 is a step schematic diagram of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure;

[0033] Figure 3 is a step schematic diagram of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure;

[0034] Figure 4 is a realization process schematic diagram of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure;

[0035] Figure 5 is a structural schematic diagram of a hybrid vehicle of a dual-motor (P1+P3) hybrid configuration;

[0036] Figure 6 is a structural schematic diagram of a hybrid vehicle of a P2 hybrid configuration. DETAILED DESCRIPTION

[0037] The various aspects and features of the present disclosure are described herein with reference to the accompanying drawings.

[0038] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the disclosure will occur to those skilled in the art to which the disclosure pertains.

[0039] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0040] These and other characteristics of the present disclosure will become apparent from the following description of the preferred forms given, by way of non-limiting example, with reference to the attached drawings.

[0041] It should also be understood that, although the present disclosure has been described in relation to the particular illustrative embodiments, many other equivalent forms of implementing the present disclosure which are within the scope of the present disclosure can be "constructed" by those skilled in the art with the benefit of the present disclosure, and that they are intended to be within the scope of the claims herein.

[0042] The above and other aspects, features, and advantages of the present disclosure will become more apparent with reference to the following detailed description when taken in conjunction with the accompanying drawings, which illustrate an exemplary embodiment of the present disclosure.

[0043] Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it will be understood that the disclosed embodiments are merely examples of the present disclosure, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but are merely representative of the present disclosure for the purpose of teaching those skilled in the art to use the present disclosure in substantially any appropriate detailed structure.

[0044] The specification can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments under the present disclosure.

[0045] A first embodiment of the present disclosure provides a control method of a hybrid vehicle, it should be noted that the control method involved in the present embodiment is applicable to a hybrid vehicle, and is particularly applicable to a hybrid vehicle having a series mode. Specifically, the hybrid vehicle at least includes an engine, an electric motor, a power battery, and a particulate capturing device, and the control method specifically includes the following steps:

[0046] S101, obtaining a particulate accumulation amount and a temperature value of the particulate capturing device.

[0047] In the step S101, the particulate accumulation amount and the temperature value of the particulate capturing device are obtained. For the particulate capturing device, the particulate accumulation amount and the temperature value need to be obtained using appropriate sensors, for example, including a particulate concentration sensor and a temperature sensor. These sensors can be installed at different positions within the particulate capturing device to obtain data at different positions. The particulate concentration sensor can measure the accumulation amount of particulate matter by detecting the number of particulate matter entering the particulate capturing device, for example, using a laser light scattering technique or the like to measure the number of particulate matter, and converting the result into a corresponding particulate concentration value.

[0048] The temperature sensor can measure the temperature in the particulate trapping device and provide the corresponding temperature value. The temperature sensor usually measures the temperature using thermistor, thermocouple, etc. technology, and converts the result into a digital signal. Similar to the particulate matter concentration sensor, the output of the temperature sensor can also be recorded and output in real time through the data acquisition system.

[0049] In addition, the temperature value of the particulate trapping device can also be calculated according to the exhaust temperature of the engine and the combustion of particulate matter in the particulate trapping device.

[0050] In this embodiment, appropriate sensors, data acquisition systems and data processing methods need to be selected according to the specific application scenario. In addition, different sensors and data acquisition systems also have different accuracy and error range, which need to be calibrated and debugged accordingly.

[0051] S102, in the case that the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is less than or equal to the first temperature threshold, the particulate trapping device temperature control is performed.

[0052] In the S102 step, it is judged whether the accumulation amount of particulate matter in the particulate trapping device is greater than the first accumulation threshold and the temperature of the particulate trapping device is greater than the first temperature threshold, and in the case that the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is less than or equal to the first temperature threshold, the particulate trapping device temperature control is performed. The first accumulation threshold here is that the accumulation amount of particulate matter in the particulate trapping device reaches a certain percentage of its maximum accumulation amount, for example: 80%. The first temperature threshold is the suitable temperature at which the particulate matter in the particulate trapping device can be burned under the condition of only air supply.

[0053] In the case that the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is less than or equal to the first temperature threshold, the particulate trapping device temperature control is needed.

[0054] In this case, the temperature control of the particulate trapping device is needed to increase its temperature and promote the combustion and removal of particulate matter. Among them, some heating means are usually used to increase the temperature of the device, such as using high temperature gas flow. Specifically, the following ways can be taken to control the temperature of the particulate trapping device: increasing the engine operating temperature: in low temperature environment, reducing the engine operating speed to increase the temperature of the particulate trapping device, so as to promote the combustion and removal of particulate matter. This can be achieved by controlling the driving of the vehicle. Increase its temperature and promote the combustion and removal of particulate matter. The appropriate control method needs to be selected according to the specific application scenario and the type of car. At the same time, attention also needs to be paid to the accuracy and stability of temperature control, so as to ensure the efficiency and performance of the particulate trapping device.

[0055] Furthermore, when the accumulated particulate matter exceeds a first accumulation threshold and the temperature is less than or equal to a first temperature threshold, temperature control of the particulate capture device is performed. This temperature control includes:

[0056] When the SOC of the power battery is greater than or equal to a first SOC threshold, the engine is controlled based on a first control strategy. The first control strategy includes at least controlling the engine speed to the highest speed that satisfies the NVH performance of the vehicle at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be the required power of the vehicle divided by the efficiency of the power generation system, and controlling the engine ignition angle to be delayed.

[0057] Specifically, the first SOC threshold is a certain percentage of the maximum SOC of the power battery, for example, 90%. At certain operating points, increasing engine speed and load can lead to excessive vehicle noise or vehicle vibration. Therefore, the NVH (Noise, Vibration, and Harshness) of the entire vehicle can be fully considered. At this time, the power battery has a high charge and is not allowed to be recharged; the charging power of the power battery is zero.

[0058] When the SOC of the power battery is greater than or equal to a first SOC threshold, the engine needs to be controlled to ensure its efficient and reliable operation. Specifically, the first control strategy includes at least the following four aspects of control:

[0059] 1. Control the engine speed to the highest speed that satisfies the NVH performance of the vehicle at the current vehicle speed, and increase it as the vehicle speed increases (engine speed is proportional to output power): This can achieve the best engine efficiency while maintaining the requirements of vehicle noise, vibration and stiffness performance.

[0060] 2. Control the engine to stop when parked: When parked, the driver's power demand is zero. Selecting to stop the engine will prevent it from outputting power and thus stop running to avoid wasting fuel and causing unnecessary pollution.

[0061] 3. Control the engine's output power to be the vehicle's required power divided by the generator system efficiency: The engine's output power, after passing through the generator, only needs to meet the driver's needs. The power demand is small. In this way, the efficiency of the generator system can be maximized, ensuring that the engine's output power can meet the vehicle's needs and maintaining the high efficiency of the generator system.

[0062] 4. Control of delayed engine ignition angle: By controlling the ignition timing, the combustion of fuel can be optimized and the emission of particulate matter can be reduced. The methods of controlling the ignition timing include controlling the ignition advance angle and controlling the ignition retard angle, with the goal of achieving the best combustion effect at the optimal ignition timing. In summary, these control strategies can improve the efficiency and performance of the engine, while reducing pollution and noise, achieving the best economy and reliability.

[0063] Further, in the case where the SOC of the power battery is less than the first SOC threshold and less than or equal to the second SOC threshold, the engine is controlled based on a second control strategy, the second control strategy at least including controlling the engine speed to be the highest speed that satisfies the vehicle NVH performance at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the output power of the engine to be the maximum power of the engine that satisfies the vehicle NVH performance under the current working condition, and controlling the delayed engine ignition angle, the second SOC threshold being less than the first SOC threshold.

[0064] Specifically, the second SOC threshold is a certain percentage of the maximum SOC of the power battery, for example: 10%. At this time, the power battery needs to be charged a lot because its power is low. The power battery is in a charging state.

[0065] In the case where the SOC of the power battery is less than the first SOC threshold and less than or equal to the second SOC threshold, the engine needs to be controlled to ensure its efficient and reliable operation. Specifically, the second control strategy at least includes the following four aspects of control:

[0066] 1. Control the engine speed to be the highest speed that satisfies the vehicle NVH performance at the current vehicle speed, which increases with the increase of the vehicle speed: this can achieve the optimal efficiency of the engine operation, while maintaining the requirements of the vehicle noise, vibration and stiffness performance.

[0067] 2. Control the engine to idle when the vehicle is parked: when the vehicle is parked, the power battery needs to be charged, and the engine will continue to operate, but the speed is controlled at the idle level to maintain its optimal temperature, so as to better prepare for the occurrence of power torque and provide driving for subsequent needs.

[0068] 3. Control the output power of the engine to be the maximum power of the engine that satisfies the vehicle NVH performance under the current working condition, and the power demand is large: by controlling the output power of the engine in real time, it is ensured that the output power of the engine can meet the requirements of the vehicle NVH performance, and the efficiency of the engine is maintained.

[0069] 4. Control of retarded engine ignition angle: By controlling the ignition timing, the combustion of fuel can be optimized and the emission of particulate matter can be reduced. Methods of controlling the ignition timing include controlling the ignition advance angle and controlling the ignition retard angle, with the goal of achieving optimal combustion results at the optimal ignition timing. In general, the purpose of these control strategies is to enable the engine to operate better and achieve optimal economy and reliability while reducing pollution and noise.

[0070] Further, in the case where the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, the engine is controlled based on a third control strategy, which at least includes controlling the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed, controlling the engine to stop when parked, controlling the output power of the engine to be the power that optimizes the efficiency of the power generation system at the current engine speed, and controlling the retarded engine ignition angle.

[0071] Specifically, at this time, the power battery has moderate power, and the power battery can be charged and discharged, and the engine is selected to output power with optimal economy.

[0072] In the case where the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, the engine needs to be controlled to ensure its efficient and reliable operation. Specifically, the third control strategy at least includes the following four aspects of control:

[0073] 1. Control the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed, which increases with the increase of vehicle speed: This can achieve the optimal efficiency of the engine operation, while meeting the requirements of vehicle noise, vibration and stiffness performance.

[0074] 2. Control the engine to stop when parked: When parked, the driver's demand power is zero, and the engine is selected to stop outputting power, and the engine will stop running to avoid wasting fuel and causing unnecessary pollution.

[0075] 3. Control the output power of the engine to be the power that optimizes the efficiency of the power generation system at the current engine speed: By controlling the output power of the engine in real time, it is ensured that the output power of the engine can maximize the efficiency of the power generation system and maintain the efficiency of the engine.

[0076] 4. Control of delayed engine ignition angle: By controlling the ignition timing, the combustion of fuel can be optimized and the emission of particulate matter can be reduced. The methods of controlling the ignition timing include controlling the ignition advance angle and controlling the ignition retard angle, with the goal of achieving the best combustion effect at the optimal ignition timing. In general, the purpose of these control strategies is to enable the engine to burn and generate power better, and to achieve the best economy and reliability while reducing pollution and noise.

[0077] In another embodiment, in the case where the amount of particulate matter accumulation is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, the particulate removal control is controlled. The above step is represented by step S103, which can be performed simultaneously with the above step S102, or can be performed separately.

[0078] In the above step, it is determined whether the amount of particulate matter accumulation in the particulate trapping device is greater than the first accumulation threshold and the temperature of the particulate trapping device is greater than the first temperature threshold, and in the case where the amount of particulate matter accumulation is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, the particulate removal control is controlled.

[0079] Further, in the case where the amount of particulate matter accumulation is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, the particulate removal control is controlled, and the particulate removal control controls the engine based on a fourth control strategy, at least including:

[0080] Controlling the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the engine to be driven by the generator when the SOC of the power battery is greater than the second SOC threshold, and controlling the engine to stop fuel injection.

[0081] In which the particulate removal control controls the engine operation based on a fourth control strategy. This control strategy includes at least the following aspects of control:

[0082] 1. Control the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed: This can ensure that the engine operates at the highest efficiency point while meeting the vehicle NVH (noise, vibration and stiffness) performance requirements. It helps to burn and remove particulate matter.

[0083] 2. Control the engine to idle when the vehicle is parked: When the vehicle is parked, the engine will continue to operate, but the speed is controlled at the idle level to maintain its optimal temperature, so as to better prepare for combustion and removal of particulate matter.

[0084] 3. When the SOC of the power battery is greater than the second SOC threshold, control the generator to drive the engine to rotate: in this case, the generator drives the engine to rotate to generate enough energy to burn and eliminate particulate matter.

[0085] 4. Control the engine to stop fuel injection: when the engine burns particulate matter, the fuel injection mechanism is turned off, which can reduce the formation of particulate matter and reduce particulate matter emissions. It is crucial for particulate matter elimination control. In general, the purpose of these control strategies is to enable the engine to better burn and eliminate particulate matter and reduce particulate matter emissions as much as possible. It should be noted that specific control strategies may vary depending on the car manufacturer and engine model, and factors such as safety, reliability, and operability also need to be considered.

[0086] Specifically, as shown in Figure 2 , Figure 2 is a step diagram of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure.

[0087] S01: Start;

[0088] S02: Determine whether the SOC of the power battery is less than the first SOC threshold. If the result is no, execute step S04, if the result is yes, execute step S03;

[0089] S03: Determine whether the SOC of the power battery is greater than the second SOC threshold. If the result is no, execute step S05, if the result is yes, execute step S06;

[0090] S04: Engine operating condition control one (engine speed is the highest speed that meets the vehicle NVH performance at the current vehicle speed, which increases with the increase of vehicle speed, and the engine stops when parked; the output power of the engine is the demand power of the vehicle divided by the efficiency of the power generation system, and the charging power of the power battery is zero; the ignition angle of the engine is delayed by a certain angle.)

[0091] S05: Engine operating condition control two (engine speed is the highest speed that meets the vehicle NVH performance at the current vehicle speed, which increases with the increase of vehicle speed, and the engine idles when parked; the output power of the engine is the maximum power of the engine under the premise of meeting the vehicle NVH performance in the current operating condition; the power battery is in a charging state; the ignition angle of the engine is delayed by a certain angle.)

[0092] S06: Engine operating condition control three (engine speed is the highest speed that meets the vehicle NVH performance at the current vehicle speed, which increases with the increase of vehicle speed, and the engine stops when parked; the output power of the engine is the power that optimizes the efficiency of the power generation system at the current engine speed; the ignition angle of the engine is delayed by a certain angle.)

[0093] S07: End.

[0094] Furthermore, after controlling particulate matter removal when the accumulated particulate matter amount exceeds a first accumulation threshold and the temperature value exceeds a first temperature threshold, the method further includes:

[0095] Determine whether the accumulated particulate matter is less than a second accumulated threshold or whether the temperature value of the particulate capture device is less than a second temperature threshold.

[0096] To improve particulate matter removal efficiency, after particulate matter removal, the accumulated amount of particulate matter in the particulate capture device is compared with a second accumulation threshold, or the temperature of the particulate capture device is compared with a second temperature threshold. It should be noted that the second accumulation threshold is a certain percentage of the accumulated amount of particulate matter in the particulate capture device reaching its maximum accumulation amount, for example, 10%; the second temperature threshold is the lowest temperature at which the particulate matter in the particulate capture device can burn when only air is supplied.

[0097] Furthermore, if the accumulated particulate matter is greater than or equal to the second accumulated threshold, the accumulated particulate matter continues to be acquired; or if the temperature value of the particulate capture device is less than the second temperature threshold, the temperature of the particulate capture device is controlled, wherein the second temperature threshold is less than the first temperature threshold.

[0098] Specifically, it is determined whether the accumulated particulate matter is greater than or equal to a second accumulation threshold. If the accumulated particulate matter is greater than or equal to the second accumulation threshold, the accumulated particulate matter is continued to be acquired; or it is determined whether the temperature value of the particulate matter capture device is less than a second temperature threshold. If the temperature value of the particulate matter capture device is less than the second temperature threshold, the temperature of the particulate matter capture device is controlled. This allows for the rapid removal of particulate matter from the particulate matter capture device through a two-cycle process of temperature control and particulate matter removal control when the accumulated particulate matter exceeds a certain value.

[0099] Furthermore, if the accumulated amount of particulate matter in the particulate capture device is less than or equal to a first accumulation threshold, the engine is driven in a normal manner.

[0100] Specifically, when the accumulated particulate matter in the particulate capture device is less than or equal to a first accumulation threshold, the conventional hybrid vehicle engine control method is used, prioritizing overall vehicle performance such as economy, emissions, power, and drivability, without considering the accumulated particulate matter in the particulate capture device. This allows for the adoption of different engine control strategies based on the accumulated particulate matter in the particulate capture device, ensuring that the vehicle's NVH performance and gaseous emissions remain unaffected during particulate matter removal control.

[0101] Specifically, such as Figure 3 As shown,Figure 3 is a step schematic diagram of a control method of a hybrid vehicle provided by the first embodiment of the present disclosure.

[0102] S11: Start;

[0103] S12: Determine whether the accumulated amount of particulate matter in the particulate trapping device is greater than a first accumulation threshold, if the result is yes, execute step S13, if the result is no, execute step S16;

[0104] S13: Determine whether the temperature of the particulate trapping device is greater than a first temperature threshold, if the result is yes, execute step S15, if the result is no, execute step S14;

[0105] S14: Particulate trapping device temperature control (execute step S13 after raising the temperature of the particulate trapping device);

[0106] S15: Particulate matter removal control (after particulate matter removal control, the first selection or the second selection can be controlled, the first selection executes step S18, and the second selection executes step S17);

[0107] S16: Normal engine control;

[0108] S17: Determine whether the temperature of the particulate trapping device is less than a second temperature threshold, if the result is yes, execute step S14, if the result is no, execute step S15;

[0109] S18: Determine whether the accumulated amount of particulate matter in the particulate trapping device is less than the second accumulation threshold, if the result is yes, execute step S19, if the result is no, execute step S12;

[0110] S19: End.

[0111] After the above-mentioned flow of the control method of the hybrid vehicle, the implementation process of the control method of the hybrid vehicle disclosed by the present disclosure is shown in Figure 4 , through the two processes of particulate trapping device temperature control and particulate matter elimination control, the rapid reduction of the accumulated amount of particulate matter is realized.

[0112] As shown in Figure 5 and Figure 6 , the control method of the hybrid vehicle disclosed by the embodiments of the present disclosure is applicable to hybrid vehicles with series mode, for example Figure 5 and Figure 6 are hybrid vehicles with double-motor (P1+P3) hybrid configuration and P2 hybrid configuration respectively, which are typical representatives of hybrid vehicles with series mode but different hybrid configurations.

[0113] The hybrid system can be divided into P0-P4 hybrid according to the motor arrangement position, collectively referred to as Px hybrid, wherein P0, P1, P2, P3 and P4 refer to motors at different positions. Series hybrid is also called extended-range hybrid. Since the engine does not directly participate in driving, the engine operating condition is very simple, and the engine can always operate in the high efficiency range to further improve the efficiency.

[0114] The hybrid vehicle of the dual-motor (P1+P3) hybrid configuration includes a transmission shaft 100, a coupling 200, an engine 300, a generator 400, an electric motor 500, a power battery 600, a differential 700, an inverter 800, and a disconnect clutch 900. The hybrid vehicle of the dual-motor (P1+P3) hybrid configuration has one generator and one electric motor. Since there are two motors, in series mode, the engine can drive the generator to generate electricity in the high efficiency operating zone. The generated electricity can be directly used by the electric motor or used to power the power battery, so that the power battery pack maintains a certain value. Engine power generation and pure electric driving can be performed simultaneously, which is beneficial to more use of pure electric driving mode and improves the fuel economy of the vehicle in low-speed power feeding operating conditions.

[0115] The hybrid vehicle of the P2 hybrid configuration includes an engine 101, a disconnect clutch 102, a high-voltage motor 103, a shift clutch 104, a transmission input shaft 105, a transmission 106, a transmission output shaft 197, and wheels 108. The hybrid vehicle of the P2 hybrid configuration does not need an engine, a standard transmission, and two clutches like other hybrid vehicles. The two clutches can be separately disconnected and engaged with the engine and the electric motor. Since it has a multi-gear transmission, the engine can be directly driven at any gear position, ensuring continuous and powerful power output throughout the journey, thereby providing a better driving experience. At the same time, there is no need to worry about vehicle power and fuel consumption anxiety during high-temperature conditions and high-speed driving. In short, it not only retains the excellent genes of traditional fuel vehicles, but also injects the blood of electric driving, realizing the fusion of the two.

[0116] It should be understood that the above examples are only for illustration and should not be construed as specific limitations.

[0117] The embodiments of the present disclosure can quickly improve the capturing efficiency of the particle capturing device, reduce the impact of the particle removal control process on the overall vehicle performance, improve the user experience, and have very beneficial effects.

[0118] Based on the same inventive concept as the first embodiment described above, the second embodiment of the present disclosure provides a control device for a hybrid vehicle, the hybrid vehicle including at least an engine, an electric motor, a power battery, and a particle capturing device, comprising:

[0119] an acquisition module configured to acquire a particulate matter accumulation amount and a temperature value of the particulate capturing device;

[0120] a cleaning control module configured to control particulate matter cleaning control when the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is greater than a first temperature threshold; and / or

[0121] a temperature control module configured to perform particulate capturing device temperature control when the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold.

[0122] In some embodiments, the control device further comprises:

[0123] a determination module configured to determine whether the particulate matter accumulation amount is less than a second accumulation threshold or a temperature value of the particulate capturing device is less than a second temperature threshold.

[0124] Further, the acquisition module is further configured to continue to acquire the particulate matter accumulation amount when the particulate matter accumulation amount is greater than or equal to a second accumulation threshold, or the temperature control module is further configured to perform particulate capturing device temperature control when a temperature value of the particulate capturing device is less than a second temperature threshold, the second temperature threshold being less than the first temperature threshold.

[0125] In some embodiments, the temperature control module is specifically configured to:

[0126] when the SOC of the power battery is greater than or equal to a first SOC threshold, control the engine based on a first control strategy, the first control strategy at least including controlling the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be the demand power of the vehicle divided by the efficiency of the power generation system, and controlling the engine ignition angle to be delayed.

[0127] In some embodiments, the temperature control module is specifically configured to:

[0128] when the SOC of the power battery is less than the first SOC threshold and less than or equal to a second SOC threshold, control the engine based on a second control strategy, the second control strategy at least including controlling the engine speed to be the highest speed that meets the vehicle NVH performance at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the output power of the engine to be the maximum power of the engine under the current working condition that meets the vehicle NVH performance, and controlling the engine ignition angle to be delayed, the second SOC threshold being less than the first SOC threshold.

[0129] In some embodiments, the temperature control module is specifically configured to:

[0130] In a case where the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, the engine is controlled based on a third control strategy, the third control strategy at least including controlling the engine speed to be a highest speed that meets the vehicle NVH performance at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be a power that optimizes the efficiency of the power generation system at the current engine speed, and controlling to retard the engine ignition angle.

[0131] In some embodiments, the purging control module is specifically configured to:

[0132] control the engine speed to be a highest speed that meets the vehicle NVH performance at the current vehicle speed, control the engine to idle when the vehicle is parked, control the generator to drive the engine to rotate in a case where the SOC of the power battery is greater than the second SOC threshold, and control the engine to stop fuel injection.

[0133] The embodiments of the present disclosure can quickly improve the capturing efficiency of the particle capturing device, reduce the influence of the particle purging control process on the performance of the vehicle, improve the user experience, and have very beneficial effects.

[0134] A third embodiment of the present disclosure provides a storage medium, which is a computer readable medium and stores a computer program. The computer program is executed by a processor to implement the method provided in the first embodiment of the present disclosure, and includes the following steps S31 to S32:

[0135] S31, acquiring a particle accumulation amount and a temperature value of the particle capturing device;

[0136] S32, in a case where the particle accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold, performing particle capturing device temperature control; and / or

[0137] In a case where the particle accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, performing particle purging control.

[0138] Further, the computer program is executed by the processor to implement other methods provided in the first embodiment of the present disclosure.

[0139] The embodiments of the present disclosure can quickly improve the capturing efficiency of the particle capturing device, reduce the influence of the particle purging control process on the performance of the vehicle, improve the user experience, and have very beneficial effects.

[0140] The fourth embodiment of the present disclosure provides an electronic device including at least a memory and a processor, the memory storing a computer program, and the processor implementing the method provided by any of the embodiments of the present disclosure when executing the computer program on the memory. For example, the electronic device computer program steps are as follows S41 to S42:

[0141] S41, obtaining a particulate matter accumulation amount and a temperature value of the particulate trapping device;

[0142] S42, in the case that the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold, performing particulate trapping device temperature control; and / or

[0143] In the case that the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, control is performed to remove the particulate matter.

[0144] Further, the processor implements the steps of the method of any of the above first embodiments when executing the computer program on the memory

[0145] The embodiments of the present disclosure can quickly improve the trapping efficiency of the particulate trapping device, reduce the impact of the particulate matter removal control process on the performance of the vehicle, improve the user experience, and have very beneficial effects.

[0146] The storage medium can be included in the electronic device described above; or it can exist separately and not be assembled into the electronic device.

[0147] The storage medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device: obtains at least two Internet protocol addresses; sends a node evaluation request including the at least two Internet protocol addresses to a node evaluation device, wherein the node evaluation device selects an Internet protocol address from the at least two Internet protocol addresses and returns; receives the Internet protocol address returned by the node evaluation device; and wherein the obtained Internet protocol address indicates an edge node in the content distribution network.

[0148] Alternatively, the storage medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device: receives a node evaluation request including at least two Internet protocol addresses; selects an Internet protocol address from the at least two Internet protocol addresses; returns the selected Internet protocol address; and wherein the received Internet protocol address indicates an edge node in the content distribution network.

[0149] Computer program code for carrying out operations of the present disclosure can be written in any one or more programming languages, including object oriented programming languages such as Java, Smalltalk, C++, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the passenger computer, partly on the passenger computer, as a stand-alone software package, partly on the passenger computer and partly on a remote computer, or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the passenger computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0150] Note that the storage medium described above in the present disclosure can be either a computer readable signal medium or a computer readable storage medium or any combination thereof. The computer readable storage medium can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, the computer readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus or device. In the present disclosure, the computer readable signal medium can include a computer readable program code propagated in or transmitted from one place to another place, and characterized by the computer readable program code. The computer readable signal medium can be in the form of a baseband signal or a carrier signal propagating in or transmitted over a communication medium. The communication medium can be any suitable medium that can carry the computer readable signal medium, including but not limited to wireline, optical, RF, etc., or any suitable combination of the foregoing. The computer readable program code contained in the computer readable signal medium can be transmitted using any suitable medium, including but not limited to wire, cable, RF, etc., or any suitable combination of the foregoing.

[0151] The computer program product of the first aspect can include one or more non-transitory computer-readable media storing instructions that, when executed, cause one or more processors to perform the operations of the first aspect. The computer program product of the first aspect can include a non-transitory computer-readable medium storing code that, when executed, causes a computer to perform operations for the first aspect.

[0152] The units described in the embodiments of the present disclosure can be implemented by software, or by hardware, or by a combination of software and hardware. The name of the unit does not constitute a limitation on the unit itself in some cases.

[0153] The functions described in this description above can be implemented in hardware, software, or any combination thereof. If implemented in software, the functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media can be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, functional

[0154] In the context of the present disclosure, a machine-readable medium can be a tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium will include one or more of: a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0155] The above description merely illustrates the preferred embodiments of the disclosure and a principle of applied technologies. It should be understood by those skilled in the art that the disclosed range of the disclosure is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by the combinations of the technical features described above or their equivalent features without departing from the above disclosed concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the disclosure (but not limited to) having similar functions.

[0156] In addition, although each operation is described in a particular order, this should not be understood as requiring the operations to be performed in the specific order shown or in a sequential order. In certain circumstances, multitasking and parallel processing can be advantageous. Similarly, although several implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the disclosure. Certain features described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented separately or in any suitable subcombination. The various features described in the context of separate embodiments can also be implemented in a combination of one or more embodiments.

[0157] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are merely illustrative of example forms of implementing the claims.

[0158] The above has described in detail the plurality of embodiments of the disclosure, but the disclosure is not limited to these specific embodiments, and those skilled in the art can make various modifications and embodiments on the basis of the concept of the disclosure, and these modifications and embodiments should fall within the scope of the disclosure claimed.

Claims

1. A control method for a hybrid vehicle that includes at least an engine, an electric motor, a power storage device, and a particulate trapping device, characterized by, The method comprises: acquiring a particulate matter accumulation amount of the particulate capturing device and a temperature value, wherein the particulate matter accumulation amount is obtained by measuring the number of particulate matters using a laser light scattering technique and converting the measurement result of the number of particulate matters, and the temperature value is calculated according to an exhaust temperature factor of the engine and a particulate matter combustion factor in the particulate capturing device; when the particulate matter accumulation amount is greater than a first accumulation threshold and the temperature value is less than or equal to a first temperature threshold, performing particulate capturing device temperature control, which comprises: when the SOC of the power battery is greater than or equal to a first SOC threshold, controlling the engine based on a first control strategy, the first control strategy at least comprising controlling the engine speed to be the highest speed that meets the whole vehicle NVH performance at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be the whole vehicle demand power divided by the power generation system efficiency, and controlling the engine ignition angle to be delayed; when the SOC of the power battery is less than the first SOC threshold and less than or equal to a second SOC threshold, controlling the engine based on a second control strategy, the second control strategy at least comprising controlling the engine speed to be the highest speed that meets the whole vehicle NVH performance at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the output power of the engine to be the maximum power of the engine under the current working condition that meets the whole vehicle NVH performance, and controlling the engine ignition angle to be delayed, the second SOC threshold being less than the first SOC threshold; when the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, controlling the engine based on a third control strategy, the third control strategy at least comprising controlling the engine speed to be the highest speed that meets the whole vehicle NVH performance at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to be the power that optimizes the power generation system efficiency at the current engine speed, and controlling the engine ignition angle to be delayed; when the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, controlling to perform particulate matter removal control, the particulate matter removal control controlling the engine based on a fourth control strategy, at least comprising: controlling the engine speed to be the highest speed that meets the whole vehicle NVH performance at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the engine to be driven by the generator when the SOC of the power battery is greater than the second SOC threshold, and controlling the engine to stop fuel injection; and / or, when the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, controlling to perform particulate matter removal control.

2. The control method of a hybrid vehicle according to claim 1, characterized by When the particulate matter accumulation amount is greater than the first accumulation threshold and the temperature value is greater than the first temperature threshold, after controlling to perform particulate matter removal control, the method further comprises: judging whether the particulate matter accumulation amount is less than a second accumulation threshold or the temperature value of the particulate capturing device is less than a second temperature threshold.

3. The control method of a hybrid vehicle according to claim 2, characterized by If the accumulated particulate matter is greater than or equal to the second accumulated threshold, the accumulated particulate matter continues to be acquired; or if the temperature value of the particulate matter capture device is less than the second temperature threshold, the temperature of the particulate matter capture device is controlled, wherein the second temperature threshold is less than the first temperature threshold.

4. A control device for a hybrid vehicle that includes at least an engine, an electric motor, a power storage device, and a particulate trapping device, characterized by, include: The acquisition module is used to acquire the cumulative particulate matter amount and temperature value of the particulate capture device. The cumulative particulate matter amount is obtained by measuring the number of particulate matter using laser light scattering technology and converting the measurement result of the number of particulate matter. The temperature value is calculated based on the exhaust temperature factor of the engine and the particulate combustion factor in the particulate capture device. The particulate matter removal control module is configured to control particulate matter removal when the accumulated particulate matter amount exceeds a first accumulation threshold and the temperature value exceeds a first temperature threshold; and / or A temperature control module is used to control the temperature of the particle capture device when the accumulated amount of particulate matter is greater than a first accumulated threshold and the temperature value is less than or equal to a first temperature threshold. The clearing control module is further configured to control the engine based on a first control strategy when the SOC of the power battery is greater than or equal to a first SOC threshold. The first control strategy includes at least controlling the engine speed to the maximum speed at which the vehicle's NVH performance is satisfied at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the engine's output power to be the vehicle's required power divided by the generator system efficiency, and controlling the engine ignition angle to be delayed. When the SOC of the power battery is less than the first SOC threshold and less than or equal to a second SOC threshold, the module controls the engine based on a second control strategy. The second control strategy includes at least controlling the engine speed to the maximum speed at which the vehicle's NVH performance is satisfied at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the engine's output power to be the maximum power of the engine under the current operating conditions that satisfy the vehicle's NVH performance, and controlling the engine ignition angle to be delayed. The second SOC threshold is less than the first SOC threshold. When the SOC of the power battery is less than the first SOC threshold and greater than the second SOC threshold, the engine is controlled based on a third control strategy. The third control strategy includes at least controlling the engine speed to the highest speed that satisfies the NVH performance of the vehicle at the current vehicle speed, controlling the engine to stop when the vehicle is parked, controlling the output power of the engine to the power of the generator system that is most efficient at the current engine speed, and controlling the engine ignition angle to be delayed. When the accumulated particulate matter is greater than the first accumulated threshold and the temperature value is greater than the first temperature threshold, particulate matter removal control is performed. The particulate matter removal control is based on a fourth control strategy to control the engine, which includes at least: controlling the engine speed to the highest speed that satisfies the NVH performance of the vehicle at the current vehicle speed, controlling the engine to idle when the vehicle is parked, controlling the generator to drive the engine to rotate when the SOC of the power battery is greater than the second SOC threshold, and controlling the engine to stop injecting fuel.

5. A storage medium storing a computer program, characterized by When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 3.

6. An electronic device comprising at least a memory, a processor, said memory having stored thereon a computer program, characterized in that, The processor implements the steps of the method according to any one of claims 1 to 3 when executing a computer program on the memory.

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