Engine starting method, electronic equipment, vehicle and storage medium

Abstract

The invention discloses an engine starting method, electronic equipment, a vehicle and a storage medium, and relates to the technical field of vehicles. The engine starting method is applied to the vehicle and comprises the steps that driving condition parameters of the vehicle are collected; an engine starting mode corresponding to the vehicle is determined according to the driving condition parameters, and the engine starting mode is a low-voltage starting mode or a high-voltage starting mode; and a target starting strategy matched with the engine starting mode is determined, and an engine of the vehicle is started according to the target starting strategy. By adopting the method and the device, the vehicle can start the engine by adopting a proper starting strategy under different working conditions, so that the situation that the engine fails to start under complex environments and working conditions due to a single starting strategy is avoided, the starting success rate of the engine is remarkably improved, and the cylinder flooding risk of the engine is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to an engine starting method, electronic equipment, vehicle, and storage medium. Background Technology

[0002] With the continuous development of the new energy vehicle industry, new energy vehicles have become the preferred mode of transportation for more and more users' daily travel due to their environmental protection and energy-saving advantages. Among them, range-extended electric vehicles, with their combination of low energy consumption and long range, effectively solve the charging anxiety problem of pure electric vehicles. In recent years, their market attention and penetration rate have continued to increase, and they have gained widespread user recognition.

[0003] In related technologies, in order to optimize the energy diversity of range-extended vehicles and reduce dependence on traditional fossil fuels, some range-extended vehicles use methanol as a fuel source and ignite the methanol fuel to start the engine by controlling the electric motor through a single engine starting strategy.

[0004] However, methanol fuel itself has the characteristic of low ignition efficiency at low temperatures. This characteristic directly leads to the difficulty in fully atomizing and igniting methanol in low-temperature environments, which in turn makes it difficult for the engine to ignite effectively during startup. At the same time, a single startup strategy cannot solve the problems of increased starting resistance and difficulty in fuel ignition caused by different environments and operating conditions. As a result, the vehicle engine will frequently fail to start in low-temperature environments, which not only seriously affects the normal driving experience of users, but also causes unburned methanol to accumulate in the engine cylinder during multiple startups, significantly increasing the risk of engine flooding. Summary of the Invention

[0005] The main objective of this application is to provide an engine starting method, electronic device, vehicle, and storage medium, aiming to solve the technical problem in the related art that engines frequently fail to start in low-temperature environments, which leads to a significant increase in the risk of cylinder flooding.

[0006] To achieve the above objectives, this application proposes an engine starting method, which is applied to a vehicle, and the method includes: Collect the driving condition parameters of the vehicle; The engine start mode corresponding to the vehicle is determined based on the driving condition parameters, wherein the engine start mode is a low-pressure start mode or a high-pressure start mode. Determine the target start strategy that matches the engine start mode, and start the vehicle's engine according to the target start strategy.

[0007] In one embodiment, the step of determining the engine start mode corresponding to the vehicle based on the driving condition parameters includes: Read the real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power included in the driving condition parameters; The engine start mode corresponding to the vehicle is determined by combining the real-time vehicle speed parameters, the real-time water temperature parameters, and the real-time discharge power.

[0008] In one embodiment, the step of determining the engine start mode corresponding to the vehicle by combining the real-time vehicle speed parameter, the real-time water temperature parameter, and the real-time discharge power includes: If the real-time vehicle speed parameter is detected to be greater than or equal to a preset vehicle speed threshold and / or the real-time water temperature parameter is less than or equal to a preset water temperature threshold, and the real-time discharge power is less than or equal to a preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the low-pressure start mode. or, If the real-time vehicle speed parameter is less than the preset vehicle speed threshold, the real-time water temperature parameter is greater than the preset water temperature threshold, and the real-time discharge power is greater than the preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the high-pressure start mode.

[0009] In one embodiment, the vehicle includes a transmission, a clutch, a low-voltage starter motor, and an engine, the engine being connected via the transmission and the low-voltage starter motor, and the transmission being connected to the clutch; The step of determining the target start-up strategy that matches the engine start-up mode includes: When the engine start mode is detected to be the low-pressure start mode, the real-time transmission air pressure of the transmission is collected, and a first preset air pressure threshold is obtained. When the real-time transmission air pressure is detected to be greater than or equal to the first preset air pressure threshold, the first preset start strategy is determined as the target start strategy, wherein the first preset start strategy is a preset start strategy that drives the engine to start when the clutch is in the disengaged state by the low-pressure starter motor. If the real-time transmission air pressure is detected to be less than the first preset air pressure threshold, a second preset start strategy is determined as the target start strategy. The second preset start strategy is a preset start strategy in which the engine is started by the low-pressure starter motor when the clutch is in the closed state.

[0010] In one embodiment, the step of starting the vehicle's engine according to the target starting strategy includes: When the target start strategy is detected to be the first preset start strategy, the engine is driven to rotate by the low-voltage starter motor, and the real-time speed of the engine is detected. When the real-time rotational speed is detected to have reached the preset ignition speed, the clutch is controlled to enter the disengaged state. Determine the target disengagement duration corresponding to the clutch, and detect the real-time disengagement duration of the clutch in the disengaged state; If the real-time disconnection duration is detected to reach the target disconnection duration, the clutch is controlled to enter the closed state to start the engine.

[0011] In one embodiment, the step of determining the target disengagement duration corresponding to the clutch includes: Read the real-time ambient temperature parameter included in the driving condition parameters; Obtain a preset temperature-time mapping relationship, wherein the temperature-time mapping relationship includes multiple preset temperature ranges and a preset disconnection duration matched for each of the multiple preset temperature ranges; Based on the real-time ambient temperature parameters, the temperature-time mapping relationship is queried to determine the target disconnection duration that matches the real-time ambient temperature parameters.

[0012] In one embodiment, the step of starting the vehicle's engine according to the target starting strategy includes: If the target starting strategy is detected to be the second preset starting strategy, the clutch is controlled to enter the closed state; The engine is started by rotating the low-voltage starter motor.

[0013] In one embodiment, the vehicle further includes a separate air tank connected to the clutch; After the step of obtaining the first preset air pressure threshold, the method further includes: If the real-time transmission air pressure is detected to be lower than the first preset air pressure threshold, the remaining air pressure parameter of the independent air storage tank is collected. If the remaining air pressure parameter is detected to be greater than or equal to the second preset air pressure threshold, the independent air tank is controlled to supply air to the clutch so that the real-time transmission air pressure of the transmission is greater than or equal to the first preset air pressure threshold.

[0014] In one embodiment, the vehicle further includes a high-voltage starter motor; The step of determining the target start-up strategy that matches the engine start-up mode includes: If the engine starting mode is detected to be the high-pressure starting mode, a third preset starting strategy is determined as the target starting strategy. The third preset starting strategy is a preset starting strategy in which the engine is started by the high-pressure starter motor when the clutch is in the closed state.

[0015] In addition, to achieve the above objectives, this application also proposes an electronic device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the engine starting method as described above.

[0016] In addition, to achieve the above objectives, this application also proposes a vehicle that includes the electronic equipment described above.

[0017] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and which, when executed by a processor, implements the steps of the engine starting method described above.

[0018] The engine starting method provided in this application is applied to a vehicle. It collects the vehicle's driving condition parameters; determines the engine starting mode corresponding to the vehicle based on the driving condition parameters, wherein the engine starting mode is a low-pressure starting mode or a high-pressure starting mode; determines a target starting strategy matching the engine starting mode; and starts the vehicle's engine according to the target starting strategy.

[0019] In this embodiment, if the electronic device receives an engine start command triggered by the driver during operation, it first collects driving condition parameters, including real-time vehicle speed, real-time water temperature, and real-time discharge power. Then, the electronic device processes the driving condition parameters to determine the engine start mode that matches the current driving state of the vehicle from the preset low-pressure start mode and high-pressure start mode. Finally, the electronic device filters multiple preset start strategies according to the engine start mode to determine the target start strategy that matches the engine start mode, and then controls the motor, clutch, etc. in the vehicle according to the target start strategy to start the vehicle's engine.

[0020] Thus, this application solves the technical problem in the related art where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Specifically, the method of this application, which selects engine starting modes that match the vehicle's driving conditions and selects starting strategies that match the driving conditions based on the engine starting modes, enables the vehicle to use appropriate starting strategies to start the engine under different operating conditions. This avoids the situation where the engine fails to start due to a single starting strategy in complex environments and operating conditions, thereby significantly improving the engine's starting success rate and reducing the risk of engine cylinder flooding. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the power control system structure involved in one embodiment of the engine starting method of this application.

[0024] Figure 2 This is a flowchart illustrating an embodiment of the engine starting method of this application.

[0025] Figure 3 This is a schematic diagram of the torque transmission direction in one embodiment of the engine starting method of this application.

[0026] Figure 4 This is a schematic diagram of the module structure of the engine starting device according to an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the hardware operating environment involved in the engine starting method in this application embodiment.

[0028] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0030] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0031] In this embodiment, for ease of description, the following description focuses on an electronic device that can be connected to the vehicle's powertrain control system. It is understood that this electronic device can specifically be the vehicle's ECU (Electronic Control Unit).

[0032] Furthermore, it should be noted that the power control system includes a power output module, an independent air supply module, and a strategy control module. The power output module includes a methanol engine, a clutch, a high-pressure starter motor, a low-pressure starter motor, and a hybrid transmission. Meanwhile, the independent air supply module includes an independent air tank and a pressure detection sensor. The strategy control module includes a PMS (Powertrain Management System), a DHU (Digital Head Unit), an EMS (Engine Management System), an MCU (Motor Control Unit), and a TCU (Transmission Control Unit). Specifically, please refer to Figure 1 , Figure 1 This is a schematic diagram of the power control system structure involved in an embodiment of the engine starting method of this application, as shown below. Figure 1 As shown, in this power control system, the high-voltage starter motor is located between the clutch and the transmission. Its motor rotor is connected to the transmission input shaft via a spline. The two rotate synchronously and cannot be mechanically separated. The hybrid clutch adopts a dry friction plate structure, and its driven plate is also splined to the high-voltage starter motor input shaft. At the same time, the hybrid clutch is connected to the transmission and the independent air supply module, and the strategy control module is communicatively connected to the independent air supply module and the power output module.

[0033] Based on the aforementioned electronic equipment, the overall concept of the engine starting method of this application is presented here.

[0034] With the continuous development of the new energy vehicle industry, new energy vehicles, with their environmental protection and energy-saving advantages, have become the preferred mode of transportation for more and more users' daily travel. Among them, range-extended electric vehicles (REEVs), due to their combination of low energy consumption and long range, effectively solve the charging anxiety problem of pure electric vehicles. In recent years, their market attention and penetration rate have continued to increase, gaining widespread user recognition. In related technologies, in order to optimize the energy diversity of REEVs and reduce dependence on traditional fossil fuels, some REEVs use methanol as a fuel source and control the motor through a single engine starting strategy to ignite the methanol fuel to start the engine. However, methanol fuel itself has the characteristic of low ignition efficiency at low temperatures. This characteristic directly leads to the difficulty in fully atomizing and igniting methanol in low-temperature environments, resulting in the engine failing to ignite effectively during the starting process. At the same time, a single starting strategy cannot solve the problems of increased starting resistance and difficulty in fuel ignition caused by different environments and operating conditions. As a result, the engine will frequently fail to start in low-temperature environments, which not only seriously affects the normal driving experience of users, but also causes unburned methanol to accumulate in the engine cylinders during multiple starts, significantly increasing the risk of engine flooding.

[0035] To address the above issues, this application provides an engine starting method applied to a vehicle. The method includes: collecting driving condition parameters of the vehicle; determining an engine starting mode corresponding to the vehicle based on the driving condition parameters, wherein the engine starting mode is a low-pressure starting mode or a high-pressure starting mode; determining a target starting strategy matching the engine starting mode; and starting the vehicle's engine according to the target starting strategy.

[0036] Thus, this application solves the technical problem in the related art where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Specifically, the method of this application, which selects engine starting modes that match the vehicle's driving conditions and selects starting strategies that match the driving conditions based on the engine starting modes, enables the vehicle to use appropriate starting strategies to start the engine under different operating conditions. This avoids the situation where the engine fails to start due to a single starting strategy in complex environments and operating conditions, thereby significantly improving the engine's starting success rate and reducing the risk of engine cylinder flooding.

[0037] Based on the overall concept of the engine starting method of this application, the embodiments of this application provide an engine starting method, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the engine starting method of this application. In this embodiment, the engine starting method is applied to a vehicle, and the engine starting method includes steps S10 to S30: Step S10: Collect vehicle driving condition parameters; Step S20: Determine the engine start mode corresponding to the vehicle based on the driving condition parameters, wherein the engine start mode is either low-pressure start mode or high-pressure start mode; It should be noted that these driving condition parameters are a set of quantitative data characterizing the vehicle's current operating conditions, including: real-time vehicle speed parameters, real-time coolant temperature parameters, real-time discharge power, etc. Furthermore, the low-voltage start mode is an engine start mode powered by a low-voltage starter motor, which can be understood as the low-voltage battery within the vehicle. Conversely, the high-voltage start mode is an engine start mode powered by a high-voltage starter motor, which can be understood as the hybrid electric motor within the vehicle.

[0038] In this embodiment, when the electronic device receives the engine start command triggered by the driver inside the vehicle, it first controls multiple sensors configured inside the vehicle to collect driving condition parameters, including real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power. Then, the electronic device processes the driving condition parameters and uses the real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power as the basis for judgment to determine the engine start mode that matches the current vehicle operating conditions as the preset low-pressure start mode or high-pressure start mode.

[0039] For example, if a range-extended vehicle has been in a low-temperature environment for a long time and the driver needs to start the engine, the engine start command is first triggered by a preset hardware switch. At this time, the PMS in the ECU first calls the vehicle speed sensor to collect the real-time vehicle speed parameters, calls the water temperature sensor to collect the real-time water temperature parameters of the engine, and collects the real-time discharge power of the power battery pack through the BMS (Battery Management System). The PMS then compares the real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power with their respective preset thresholds to determine the current operating condition of the vehicle based on the comparison results. Based on the current operating condition, it determines whether to adopt the engine start mode as a low-voltage start mode with a low-voltage starter motor as the core power source or a high-voltage start mode with a high-voltage starter motor as the core power source.

[0040] In this way, the electronic equipment identifies the vehicle's operating conditions from multiple dimensions based on collected parameters such as vehicle speed, water temperature, and discharge power, and then selects the starting mode that matches the vehicle's operating conditions. This avoids the situation where the high-voltage starting mode is mistakenly used under low temperature / low power conditions, which would lead to battery overload and start-up failure. It also avoids the situation where the low-voltage starting mode is mistakenly used under normal temperature / high power conditions, which would lead to start-up failure. This ensures that the appropriate starting strategy is used to start the engine under different operating conditions, thereby significantly improving the engine's start-up success rate and reducing the risk of engine flooding.

[0041] In one feasible implementation, step S20 above may specifically include steps S201 to S202: Step S201: Read the real-time vehicle speed parameter, real-time water temperature parameter and real-time discharge power included in the driving condition parameters; Step S202: Determine the engine start mode corresponding to the vehicle by combining the real-time vehicle speed parameter, the real-time water temperature parameter, and the real-time discharge power.

[0042] In this embodiment, after collecting the vehicle's driving condition parameters, the electronic device first reads the real-time vehicle speed parameters, real-time coolant temperature parameters, and real-time discharge power contained in the driving condition parameters. Then, the electronic device reads its own configured storage module to obtain preset vehicle speed thresholds, preset coolant temperature thresholds, and preset discharge power thresholds. It then compares the real-time vehicle speed parameters with the preset vehicle speed thresholds, the real-time coolant temperature parameters with the preset coolant temperature thresholds, and the real-time discharge power with the preset discharge power thresholds to obtain multiple comparison results. The electronic device then determines the corresponding real-time vehicle condition based on the multiple comparison results, and then determines the matching engine start mode as either low-pressure start mode or high-pressure start mode based on the real-time vehicle condition.

[0043] In this way, the electronic equipment identifies the vehicle's operating conditions from multiple dimensions based on collected parameters such as vehicle speed, water temperature, and discharge power, and then selects the starting mode that matches the vehicle's operating conditions. This avoids the situation where the high-voltage starting mode is mistakenly used under low temperature / low power conditions, which would lead to battery overload and start-up failure. It also avoids the situation where the low-voltage starting mode is mistakenly used under normal temperature / high power conditions, which would lead to start-up failure. This ensures that the appropriate starting strategy is used to start the engine under different operating conditions, thereby significantly improving the engine's start-up success rate and reducing the risk of engine flooding.

[0044] In one feasible implementation, step S202 above may specifically include steps S2021 to S2022: Step S2021: If the real-time vehicle speed parameter is detected to be greater than or equal to a preset vehicle speed threshold and / or the real-time water temperature parameter is less than or equal to a preset water temperature threshold, and the real-time discharge power is less than or equal to a preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the low-pressure start mode. or, Step S2022: When it is detected that the real-time vehicle speed parameter is less than the preset vehicle speed threshold, the real-time water temperature parameter is greater than the preset water temperature threshold, and the real-time discharge power is greater than the preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the high-pressure start mode.

[0045] It should be noted that the preset vehicle speed threshold is a reference speed value used to distinguish between low-speed and non-low-speed operating conditions. It can be understood that when the real-time vehicle speed parameter is greater than or equal to the preset speed threshold, it indicates that the vehicle is in a non-low-speed operating condition while moving. In this case, a low-voltage starter motor is required to avoid power conflict and starting failure. Similarly, when the real-time vehicle speed parameter is less than the preset speed threshold, it indicates that the vehicle is in a stationary / low-speed operating condition. In this case, a high-voltage starter motor is required to start the engine. Furthermore, the preset coolant temperature threshold is a reference temperature value used to assess the impact of the environment on engine starting resistance. This preset coolant temperature threshold can be obtained by technicians based on the low-temperature combustion characteristics of methanol fuel and cold-region starting data of the engine. This application does not limit the specific value of the preset coolant temperature threshold. It can be understood that when the real-time coolant temperature parameter is greater than or equal to the preset speed threshold, it indicates that the vehicle is in a non-low-speed operating condition while moving. In this case, a low-voltage starter motor is required to start the engine. If a water temperature threshold is set, the engine's starting resistance is within the normal range, allowing the engine to be started via the high-voltage starter motor. Similarly, when the real-time water temperature parameter is lower than the preset water temperature threshold, the combustion difficulty of methanol fuel in the engine increases, and the viscosity of the engine gear oil increases, thus increasing the engine's starting resistance. This necessitates using the low-voltage starter motor to reduce the engine's starting load. Furthermore, the preset discharge power is a benchmark discharge power used to evaluate the power battery's supply capacity. It can be understood that if the real-time discharge power is lower than the preset discharge power, it indicates that the power battery cannot provide sufficient power to the high-voltage starter motor, requiring the low-voltage starter motor to start the engine. Conversely, if the real-time discharge power is greater than the preset discharge power, it indicates that the power battery can provide sufficient power to the high-voltage starter motor, allowing the engine to be started via the high-voltage starter motor.

[0046] In this embodiment, after acquiring real-time vehicle speed parameters, real-time coolant temperature parameters, and real-time discharge power, the electronic device first reads the aforementioned storage module to obtain preset vehicle speed thresholds, preset coolant temperature thresholds, and preset discharge power thresholds. It then compares the real-time vehicle speed parameters with the preset vehicle speed thresholds, the real-time coolant temperature parameters with the preset coolant temperature thresholds, and the real-time discharge power with the preset discharge power thresholds. If the electronic device detects that the real-time vehicle speed parameter is greater than or equal to the preset vehicle speed threshold and / or the real-time coolant temperature parameter is less than the preset coolant temperature threshold, and the real-time discharge power is less than the preset discharge power threshold, it determines that the vehicle is currently in a high-speed / low-temperature operating condition, and thus determines the preset low-temperature start mode as the engine start mode. Alternatively, if the electronic device detects that the real-time vehicle speed parameter is less than the preset vehicle speed threshold, the real-time coolant temperature parameter is greater than the preset coolant temperature threshold, and the real-time discharge power is greater than the preset discharge power threshold, it determines that the vehicle is currently in a low-speed / high-temperature operating condition, and thus determines the preset high-temperature start mode as the engine start mode.

[0047] For example, after acquiring real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power, the PMS first reads the aforementioned storage module to obtain a preset vehicle speed threshold of 5km / s, a preset water temperature threshold of -10℃, and a preset discharge power threshold of 50kW. It then compares the real-time vehicle speed parameters with the preset vehicle speed threshold, the real-time water temperature parameters with the preset water temperature threshold, and the real-time discharge power with the preset discharge power threshold. If the PMS detects that the real-time vehicle speed parameters are ≥5km / s and / or the real-time water temperature parameters are ≤-10℃ and the real-time discharge power is ≤50kW, it determines that the vehicle is currently in a high-speed / low-temperature operating condition and that the power battery is unable to supply power to the high-voltage starter motor. The PMS then determines that the engine has a large starting resistance and therefore determines that the engine needs to be started by controlling the low-voltage starter motor. The preset low-voltage start mode is then determined as the engine start mode to be adopted. or, After comparing the real-time vehicle speed parameters with the preset vehicle speed threshold, the real-time coolant temperature parameters with the preset coolant temperature threshold, and the real-time discharge power with the preset discharge power threshold, if the real-time vehicle speed parameter is <5km / h, the real-time coolant temperature parameter is >-10℃, and the real-time discharge power is >50kW, then the PMS determines that the vehicle is currently in a low-speed / high-temperature operating condition, and that the power battery can supply power to the high-voltage starter motor. At this time, the PMS determines that the engine starting resistance is small and the probability of successful engine starting is high. Therefore, it determines that the engine needs to be started by controlling the high-voltage starter motor, and determines the preset high-voltage start mode as the engine starting mode to be adopted.

[0048] In this way, the electronic equipment identifies the vehicle's operating conditions from multiple dimensions based on collected parameters such as vehicle speed, water temperature, and discharge power, and then selects the starting mode that matches the vehicle's operating conditions. This avoids the situation where the high-voltage starting mode is mistakenly used under low temperature / low power conditions, which would lead to battery overload and start-up failure. It also avoids the situation where the low-voltage starting mode is mistakenly used under normal temperature / high power conditions, which would lead to start-up failure. This ensures that the appropriate starting strategy is used to start the engine under different operating conditions, thereby significantly improving the engine's start-up success rate and reducing the risk of engine flooding.

[0049] Step S30: Determine the target start strategy that matches the engine start mode, and start the vehicle's engine according to the target start strategy; It should be noted that this target start strategy is a complete operation plan that is matched with low-pressure start mode / high-pressure start mode and includes multiple schemes such as "clutch control", "motor control", "start attempt number limit" and "abnormal handling".

[0050] In this embodiment, after determining the engine start mode, the electronic device further acquires multiple preset start strategies, filters the multiple preset start strategies according to the engine start mode to determine the target start strategy that matches the engine start mode, and then controls the vehicle's clutch, transmission and low-voltage starter motor / high-voltage starter motor according to the target start strategy, so as to drive the engine to run through the low-voltage starter motor / high-voltage starter motor to complete the engine start operation.

[0051] For example, after determining the engine start mode, if the PMS detects that the engine start mode is a low-pressure start mode, it determines that the target start strategy matching the low-pressure start mode is a first preset start strategy or a second preset start strategy. Then, according to the first preset start strategy / second preset start strategy, it sends a clutch control command to the TCU to control the clutch to enter the target clutch state matching the first preset start strategy / second preset start strategy, and controls the low-pressure start motor to start to drive the engine to start the engine. Similarly, if the PMS detects that the engine start mode is the high-pressure start mode, it determines that the target start strategy matching the high-pressure start mode is the third preset start strategy. Then, according to the third preset start strategy, it sends a clutch control command to the TCU to control the clutch to enter the target clutch state matching the third preset start strategy, and controls the high-pressure starter motor to start to drive the engine to run, thereby successfully starting the engine.

[0052] In this way, the electronic equipment can select a starting strategy that matches the starting mode, and then control the clutch, transmission, low-voltage starter motor / high-voltage starter motor according to the starting strategy, thereby ensuring an improved starting success rate of the methanol engine and reducing the risk of engine flooding.

[0053] In one possible implementation, the vehicle includes a transmission, a clutch, a low-voltage starter motor, and an engine, the engine being connected via the transmission and the low-voltage starter motor, and the transmission being connected to the clutch; The step of "determining the target start-up strategy matching the engine start-up mode" in step S30 above may specifically include steps S301 to S303: Step S301: When the engine start mode is detected to be the low-pressure start mode, the real-time transmission air pressure of the transmission is collected, and a first preset air pressure threshold is obtained; Step S302: When the real-time transmission air pressure is detected to be greater than or equal to the first preset air pressure threshold, a first preset starting strategy is determined as the target starting strategy, wherein the first preset starting strategy is a preset starting strategy that drives the engine to start when the clutch is in the disengaged state by the low-pressure starter motor. Step S303: When the real-time transmission air pressure is detected to be less than the first preset air pressure threshold, a second preset starting strategy is determined as the target starting strategy, wherein the second preset starting strategy is a preset starting strategy in which the engine is started by the low-pressure starter motor when the clutch is in the closed state.

[0054] It should be noted that the real-time transmission air pressure is the real-time pressure value generated when the independent air tank supplies air to the hybrid transmission. It is understood that this real-time transmission pressure will dynamically change with the transmission's air usage, and even a slight leak in the independent air tank when the vehicle is stationary will cause the actual transmission air pressure to slowly decrease. Furthermore, the first preset air pressure threshold is a reference air pressure parameter for determining whether the real-time transmission air pressure is sufficient to disengage the clutch. It is understood that this first preset air pressure threshold can be obtained by technicians based on the characteristics of the clutch's pneumatic actuator and cold-weather start-up test data. This application does not limit the specific value of the first preset air pressure threshold. Furthermore, the first preset starting strategy is designed to adapt to low-pressure start-up mode and real-time transmission air pressure conditions. It controls the clutch to disengage before engine start to reduce the starting resistance caused by the viscosity of gear oil at low temperatures, thereby ensuring that the low-pressure starter motor can easily drive the engine to the ignition speed. In addition, the second preset starting strategy is designed to adapt to low-pressure start-up mode and real-time transmission air pressure conditions. It controls the clutch to close when the engine starts, so that the output torque of the low-pressure starter motor can directly drive the linkage components of the engine, clutch, and transmission to start and drive the engine to the ignition speed. It is understood that the second preset starting strategy also includes a protection mechanism for limiting the number of starts.

[0055] In this embodiment, after determining the engine start mode, if the electronic device detects that the engine start mode is a low-pressure start mode, it further detects its own independent pressure supply module to collect the real-time transmission air pressure through the air pressure detection sensor in the independent pressure supply module. At the same time, the electronic device reads the aforementioned storage module to obtain a first preset air pressure threshold and compares the real-time transmission air pressure with the first preset air pressure threshold. Then, if the electronic device detects that the real-time transmission air pressure is greater than or equal to the first preset air pressure threshold, it determines the first preset start strategy of controlling the low-pressure starter motor to start the engine while the clutch is in the disengaged state as the target start strategy to be executed. Similarly, if the electronic device detects that the real-time transmission air pressure is less than the first preset air pressure threshold, it determines the second preset start strategy of controlling the low-pressure starter motor to start the engine while the clutch is in the closed state as the target start strategy to be executed.

[0056] For example, after determining the engine start mode, the PMS further controls the air supply pressure sensor in the independent air supply module to collect the real-time transmission pressure of the transmission through the air supply pressure sensor. At the same time, the PMS reads the aforementioned storage module to obtain a first preset air pressure threshold and compares the real-time transmission pressure with the first preset air pressure threshold. Then, if the PMS detects that the real-time transmission air pressure is greater than or equal to the first preset air pressure threshold, it determines that the air supply operation of the independent air tank can disengage the clutch at this time, and then determines the first preset start strategy, which includes a clutch disengagement command and can control the low-pressure starter motor to start when the clutch is disengaged, as the target start strategy to be executed. Similarly, if the PMS detects that the real-time transmission air pressure is less than the first preset air pressure threshold, it determines that the air supply operation of the independent air tank cannot disengage the clutch at this time, and then determines the second preset start strategy, which can control the low-pressure starter motor to start when the clutch is engaged, as the target start strategy to be executed.

[0057] In this way, the electronic equipment can select a starting strategy that matches the starting mode, and then control the clutch, transmission, and low-voltage starter motor according to the starting strategy, thereby ensuring an improved starting success rate of the methanol engine and reducing the risk of engine flooding.

[0058] Furthermore, in this embodiment and another embodiment, if the electronic device detects that the target start strategy is the second preset start strategy mentioned above, it further obtains the real-time ambient temperature corresponding to the vehicle's environment. At the same time, the electronic device reads the preset ambient temperature threshold of -20℃ from the storage module and compares the real-time ambient temperature with the ambient temperature threshold. If the electronic device detects that the real-time ambient temperature is <-20℃, it sets the start count limit in the second preset start strategy to 3 times before starting the engine, and then controls the engine to start according to the second preset start strategy. If the number of engine start failures reaches 3, the engine start function is locked, and a message "Please refill the independent air tank and try again" pops up on the instrument panel to prompt the driver to refill the independent air tank.

[0059] In this way, the electronic equipment can also start the engine when the air pressure is insufficient and the ambient temperature is too low, and limit the number of starts to avoid repeated start failures under low temperature and low air pressure, which could lead to engine flooding.

[0060] In one feasible implementation, the vehicle further includes a high-voltage starter motor; the step of "determining the target start strategy matching the engine start mode" in step S30 above may further include step S304: Step S304: When the engine starting mode is detected to be the high-pressure starting mode, a third preset starting strategy is determined as the target starting strategy, wherein the third preset starting strategy is a preset starting strategy in which the engine is started by the high-pressure starter motor when the clutch is in the closed state.

[0061] It should be noted that this third starting strategy is designed to adapt to the high-pressure starting mode. It controls the clutch to close before the engine starts, so that the output torque of the high-pressure starter motor can directly drive the linkage components of the engine, clutch, and transmission to drive the engine to the ignition speed. It is understood that this third starting strategy also includes a protection mechanism that limits the number of starts.

[0062] In this embodiment, after determining the engine start mode, if the electronic device detects that the engine start mode is a high-pressure start mode, it further determines the third start strategy that controls the high-pressure starter motor to start the engine when the clutch is in the closed state as the target start strategy to be executed.

[0063] For example, after determining the engine start mode, if the PMS detects that the engine start mode is a high-pressure start mode, it determines that the engine start resistance is low at this time, and then generates a clutch closing command that controls the clutch to close via the TCU, and generates a high-pressure motor start command that controls the engine to start via the MCU. Then, based on the third start strategy including the clutch closing command and the high-pressure motor start command, it determines the target start strategy to be executed.

[0064] In this way, the electronic equipment can select a starting strategy that matches the starting mode, and then control the clutch, transmission, and high-voltage starter motor according to the starting strategy, thereby ensuring an improved starting success rate of the methanol engine and reducing the risk of engine flooding.

[0065] In one feasible implementation, the step of "starting the vehicle's engine according to the target starting strategy" in step S30 above may specifically include steps S305 to S308: Step S305: When the target start strategy is detected to be the first preset start strategy, the engine is driven to rotate by the low-voltage starter motor, and the real-time speed of the engine is detected; Step S306: When the real-time rotational speed is detected to have reached the preset ignition speed, the clutch is controlled to enter the disengagement state; Step S307: Determine the target disengagement duration corresponding to the clutch, and detect the real-time disengagement duration of the clutch in the disengaged state; Step S308: If the real-time disconnection duration is detected to reach the target disconnection duration, control the clutch to enter the closed state to start the engine.

[0066] It should be noted that the target disengagement duration is a preset time for the clutch to remain disengaged after the low-pressure starter motor successfully rotates. It is understood that this target disengagement duration can be calibrated by technicians based on the low-temperature starting characteristics of the methanol engine and cold-region test data. This application does not impose any specific numerical limit on the target disengagement duration. Furthermore, the real-time disengagement duration is the duration of the disengagement state recorded in real-time by the PMS after the clutch enters the disengagement state.

[0067] In this embodiment, after determining the target starting strategy, if the electronic device determines that the target starting strategy is the aforementioned first preset starting strategy, it first controls the low-voltage starter motor to operate, thereby driving the engine to run. At the same time, the electronic device collects the real-time engine speed through the speed sensor configured on the engine. Then, the electronic device reads the aforementioned storage module to obtain the preset ignition speed and compares the real-time speed with the preset ignition speed. At this time, if the electronic device detects that the real-time speed has reached the preset ignition speed, it further controls the clutch to switch from the closed state to the disengaged state. Then, the electronic device detects the real-time ambient temperature in the vehicle's environment and determines the target disengagement duration of the clutch based on the real-time ambient temperature. At the same time, the electronic device activates its own configured timing module to detect the real-time disengagement duration of the clutch starting the instant the clutch enters the disengaged state. Finally, the electronic device compares the real-time disengagement duration with the target disengagement duration. Thus, when it detects that the real-time disengagement time has reached the target disengagement time, it controls the transmission to switch from the disengaged state to the closed state to complete the starting operation and allow the vehicle to enter the normal driving state.

[0068] For example, after determining the target start strategy, if the PMS detects that the target start strategy is the first preset start strategy mentioned above, the PMS first sends a motor start command to the low-voltage starter motor, thereby causing the low-voltage starter motor to drive the engine to rotate. At the same time, the PMS collects the real-time engine speed through the speed detection sensor configured on the engine. Then, the PMS reads the aforementioned storage module to obtain the preset engine ignition speed. The PMS then compares the real-time speed with the engine ignition speed. If it detects that the real-time speed has reached the preset ignition speed, the PMS sends a clutch disengagement command to the TCU, thereby causing the transmission to supply air to the clutch to disengage the clutch, causing the clutch to enter the disengaged state. After that, the PMS activates its own configured timing module. The PMS detects the real-time disengagement duration of the clutch in the disengaged state starting the instant the clutch engages. Simultaneously, it detects the real-time ambient temperature of the vehicle's environment. If the ambient temperature is between -25°C and -15°C, the target disengagement duration is set at 50 seconds. Finally, the PMS compares the real-time disengagement duration with the target disengagement duration. If the target disengagement duration reaches 50 seconds, the PMS sends a clutch engagement command to the TCU, which then controls the transmission to stop supplying air to the clutch, thus switching the clutch from the disengaged state to the engaged state. At this point, the PMS determines that the engine idle speed has stabilized and sends an ignition command to the EMS to control engine ignition and complete the start-up operation.

[0069] In this way, if the electronic device detects that the clutch is supplied with sufficient air in the low-pressure start-up mode, it controls the clutch to disengage, thereby preventing the load impact during the start-up process from affecting the engine ignition, reducing the engine's starting load, and significantly reducing the risk of stalling after starting.

[0070] In one feasible implementation, the step of "determining the target disengagement duration corresponding to the clutch" in step S307 above may specifically include steps S3071 to S3073: Step S3071: Read the real-time ambient temperature parameter included in the driving condition parameters; Step S3072: Obtain a preset temperature-time mapping relationship, wherein the temperature-time mapping relationship includes multiple preset temperature ranges and a preset disconnection duration matched for each of the multiple preset temperature ranges; Step S3073: Based on the real-time ambient temperature parameter, query the temperature-time mapping relationship to determine the target disconnection duration that matches the real-time ambient temperature parameter.

[0071] It should be noted that this temperature-time mapping relationship is pre-calibrated based on the low-temperature start-up characteristics of methanol engines and a large amount of cold-region test data, and is stored in the storage module of the electronic device as an ambient temperature range-clutch disengagement duration correspondence rule. It can be understood that this temperature-time mapping relationship includes multiple preset ambient temperature ranges and preset disengagement durations matched to each of the multiple preset ambient temperature ranges, thereby ensuring that the engine can obtain sufficient idling stability time in different ambient temperature ranges and avoid stalling due to insufficient buffering caused by temperature differences.

[0072] In this embodiment, after the electronic device controls the clutch to enter the disengaged state, it further detects the real-time ambient temperature parameter corresponding to the vehicle's environment. Then, the electronic device reads the aforementioned storage module to obtain a temperature-time mapping relationship containing multiple preset temperature ranges and preset disconnection durations matched by each preset temperature range. Finally, the electronic device queries the temperature-time mapping relationship based on the real-time ambient temperature parameter to determine the preset temperature range in which the real-time ambient temperature parameter is located, and determines the preset disconnection duration matched by the preset temperature range in which the real-time ambient temperature parameter is located as the target disconnection duration.

[0073] For example, after the PMS controls the clutch to enter the disengaged state via the TCU, it further controls the temperature sensor configured inside the vehicle to collect the real-time ambient temperature parameters corresponding to the vehicle's environment. Then, the PMS reads the aforementioned storage module to obtain the temperature-time mapping relationship shown in Table 1, which includes multiple preset ambient temperature ranges and preset disengagement durations matched for each preset temperature range. Table 1: Temperature-time mapping relationship.

[0074] Finally, if the PMS detects that the real-time ambient temperature is -20℃, it queries the temperature-time mapping relationship based on the real-time ambient temperature to determine that the real-time ambient temperature parameter is between -25℃ and -15℃ in the preset ambient temperature range. Then, it determines the preset disconnection holding time of 50s, which matches the preset ambient temperature range of -25℃ to -15℃ within the temperature-time mapping relationship, as the target disconnection duration.

[0075] In this way, electronic devices can ensure that the engine can obtain sufficient idling time in different ambient temperature ranges, avoiding stalling due to insufficient buffering caused by temperature differences.

[0076] In one feasible implementation, the step of "starting the vehicle's engine according to the target starting strategy" in step S30 above may further include steps S309 to S310: Step S309: If the target starting strategy is detected to be the second preset starting strategy, control the clutch to enter the closed state; Step S310: Start the engine by rotating the low-voltage starter motor.

[0077] In this embodiment, when the electronic device determines the target starting strategy, or if the target starting strategy is the second preset starting strategy mentioned above, it first controls the clutch to remain in the closed state. Then, the electronic device sends a motor start command to the low-voltage starter motor, thereby causing the low-voltage starter motor to run, and thus driving the engine to run through the low-voltage starter motor to complete the engine starting operation.

[0078] For example, please refer to Figure 3 , Figure 3 This is a schematic diagram of the torque transmission direction in an embodiment of the engine starting method of this application. After determining the target starting strategy, if the PMS reads that the target starting strategy is the aforementioned second preset starting strategy, the PMS first sends a clutch engagement command to the TCU. At this time, the TCU controls the clutch to enter the engaged state according to the clutch engagement command, and further detects whether there is a gap between the clutch and the engine in the engaged state. If the TCU detects a gap in the clutch, it uses the remaining low-pressure air source in the aforementioned independent air tank to push the clutch pressure plate so that the clutch driven plate is tightly engaged with the engine flywheel, ensuring that the clutch is in a fully engaged state. Finally, when the PMS detects that the clutch and the engine are fully engaged through the TCU, it sends a motor start command to the low-pressure starter motor, thereby controlling the operation of the low-pressure starter motor. Figure 3 As shown, the torque of the low-voltage starter motor is transmitted to the engine flywheel through the closed clutch, which in turn drives the transmission input shaft to rotate synchronously until the engine speed reaches the preset ignition speed.

[0079] In this way, the electronic equipment can actively control the clutch to close using the remaining low-pressure air source when the clutch air supply is insufficient, thereby avoiding the interruption of starting power transmission due to the uncertainty of the clutch state, which would lead to engine starting failure and further avoid the risk of engine flooding.

[0080] Furthermore, in this embodiment and another embodiment, when the electronic device determines that the target starting strategy is the aforementioned second preset starting strategy, it first controls the clutch to enter the closed state. At this time, the electronic device further calls the aforementioned temperature sensor to detect the real-time ambient temperature parameters matching the vehicle's environment. Simultaneously, the electronic device obtains a preset ambient temperature threshold and compares the real-time ambient temperature parameters with the ambient temperature threshold. Then, if the electronic device detects that the real-time ambient temperature parameters are less than the ambient temperature threshold, it determines that the engine's starting resistance has significantly increased under the current environment. Therefore, before sending the motor start command, it first sets the starting attempt limit for the low-pressure starter motor to 3 times. Then, the electronic device controls the low-pressure starter motor to start, and if the engine has not reached the ignition speed when the low-pressure starter motor is detected to start, it determines that the engine start has failed and records the number of engine start failures. Finally, if the electronic device detects that the number of engine start failures has reached 3, it locks the engine start function and sends a prompt message to the driver via the DHU: "Please replenish the independent air tank and try again." In this way, the electronic device can avoid the situation where the methanol engine floods after multiple forced start failures due to insufficient air supply in low-temperature environments.

[0081] In this embodiment, when the electronic device receives an engine start command triggered by the driver inside the vehicle, it first controls multiple sensors configured inside the vehicle to collect driving condition parameters, including real-time vehicle speed parameters, real-time coolant temperature parameters, and real-time discharge power. Then, the electronic device processes the driving condition parameters, using the real-time vehicle speed parameters, real-time coolant temperature parameters, and real-time discharge power as the basis for judgment, and determines the engine start mode that matches the current vehicle operating conditions as a preset low-pressure start mode or a high-pressure start mode. Finally, the electronic device acquires multiple preset start strategies and filters them according to the engine start mode to determine the target start strategy that matches the engine start mode. Then, it controls the vehicle's clutch, transmission, and low-pressure starter motor / high-pressure starter motor according to the target start strategy, so as to drive the engine to run through the low-pressure starter motor / high-pressure starter motor to complete the engine start operation.

[0082] Thus, this application solves the technical problem in the related art where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Specifically, the method of this application, which selects engine starting modes that match the vehicle's driving conditions and selects starting strategies that match the driving conditions based on the engine starting modes, enables the vehicle to use appropriate starting strategies to start the engine under different operating conditions. This avoids the situation where the engine fails to start due to a single starting strategy in complex environments and operating conditions, thereby significantly improving the engine's starting success rate and reducing the risk of engine cylinder flooding.

[0083] Based on the first embodiment of this application, a second embodiment of this application is proposed herein. In this second embodiment, content that is the same as or similar to the above embodiments can be referred to the above description and will not be repeated hereafter. In addition, the vehicle further includes an independent air tank, which is connected to the clutch; after step S301 above, the engine starting method of this application may further include steps A10~A20: Step A10: If the real-time transmission air pressure is detected to be less than the first preset air pressure threshold, the remaining air pressure parameter of the independent air storage tank is collected; Step A20: When the remaining air pressure parameter is detected to be greater than or equal to the second preset air pressure threshold, control the independent air tank to supply air to the clutch so that the real-time transmission air pressure of the transmission is greater than or equal to the first preset air pressure threshold.

[0084] It should be noted that the remaining air pressure parameter is a pressure value characterizing the amount of compressed air currently remaining in the aforementioned independent air tank. It can be understood that this remaining air pressure parameter reflects whether the independent air tank can initiate a replenishment operation to the transmission to meet the clutch disengagement requirements. Furthermore, the second preset air pressure threshold is a standard air pressure parameter used to determine whether the remaining air pressure in the independent air tank is sufficient to supply air to the transmission so that the real-time air pressure parameter in the transmission reaches the first preset air pressure threshold. It can be understood that this second air pressure threshold can be obtained by technicians based on tests of the independent air tank's volume, the transmission's air supply line volume, and the independent air tank's pressure loss data. This application does not limit the specific value of the second air pressure threshold.

[0085] In this embodiment, when the electronic device detects that the real-time air pressure parameter of the transmission is less than the first preset air pressure threshold, it can further call the air pressure sensor configured in the independent air tank to detect the remaining air pressure parameter in the independent air tank. Then, the electronic device reads the storage module to obtain the second preset air pressure threshold and compares the remaining air pressure parameter with the second preset air pressure threshold. Thus, when the remaining air pressure parameter is detected to be greater than or equal to the second preset air pressure threshold, the electronic device controls the independent air tank to supply air to the clutch. After the real-time transmission air pressure of the clutch is greater than or equal to the first preset air pressure threshold, the electronic device controls the independent air tank to stop supplying air.

[0086] For example, after obtaining the first preset air pressure threshold, the PMS compares the real-time transmission air pressure with the first preset air pressure threshold. If the real-time transmission air pressure is detected to be below the first preset air pressure threshold, the PMS controls the air pressure detection sensor configured in the independent air tank to collect the remaining air pressure parameters in the independent air tank. Then, the PMS reads the storage module to obtain the second preset air pressure threshold and compares the remaining air pressure parameters with the second air pressure threshold. If the PMS detects that the remaining air pressure parameters are greater than or equal to the second air pressure threshold, it determines that the remaining air in the independent air tank is sufficient. It then controls the independent air tank to supply air to the transmission through the pipeline, so that the remaining air entering the transmission through the pipeline can bring the real-time air pressure parameters of the transmission to the aforementioned first preset air pressure threshold. Similarly, if the PMS detects that the remaining air pressure parameters are less than the second air pressure threshold, it determines that the air pressure in the independent air tank is insufficient and cannot effectively replenish the air in the transmission. In this case, the PMS sends a prompt message to the driver via the DHU: "Please replenish the independent air tank and try again."

[0087] In this way, when the electronic equipment detects that there is enough air remaining in the independent air tank, it can actively increase the real-time air pressure of the transmission to the level that meets the clutch disengagement, so as to switch from insufficient air supply to sufficient air supply, thereby improving the engine's starting success rate in low-pressure start mode.

[0088] This application also provides an engine starting device, please refer to... Figure 4 The engine starting device is applied to a vehicle, and the device includes: The parameter acquisition module 10 is used to acquire the driving condition parameters of the vehicle. The mode matching module 20 is used to determine the engine start mode corresponding to the vehicle based on the driving condition parameters, wherein the engine start mode is a low-pressure start mode or a high-pressure start mode. The strategy matching module 30 is used to determine the target start strategy for matching the engine start mode, and start the vehicle's engine according to the target start strategy.

[0089] In one feasible implementation, the pattern matching module 20 is further configured to: Read the real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power included in the driving condition parameters; The engine start mode corresponding to the vehicle is determined by combining the real-time vehicle speed parameters, the real-time water temperature parameters, and the real-time discharge power.

[0090] In one feasible implementation, the pattern matching module 20 is further configured to: If the real-time vehicle speed parameter is detected to be greater than or equal to a preset vehicle speed threshold and / or the real-time water temperature parameter is less than or equal to a preset water temperature threshold, and the real-time discharge power is less than or equal to a preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the low-pressure start mode. or, If the real-time vehicle speed parameter is less than the preset vehicle speed threshold, the real-time water temperature parameter is greater than the preset water temperature threshold, and the real-time discharge power is greater than the preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the high-pressure start mode.

[0091] In one feasible implementation, the vehicle includes a transmission, a clutch, a low-voltage starter motor, and an engine, the engine being connected to the transmission and the low-voltage starter motor, and the transmission being connected to the clutch; the aforementioned strategy matching module 30 is further configured to: When the engine start mode is detected to be the low-pressure start mode, the real-time transmission air pressure of the transmission is collected, and a first preset air pressure threshold is obtained. When the real-time transmission air pressure is detected to be greater than or equal to the first preset air pressure threshold, the first preset start strategy is determined as the target start strategy, wherein the first preset start strategy is a preset start strategy that drives the engine to start when the clutch is in the disengaged state by the low-pressure starter motor. If the real-time transmission air pressure is detected to be less than the first preset air pressure threshold, a second preset start strategy is determined as the target start strategy. The second preset start strategy is a preset start strategy in which the engine is started by the low-pressure starter motor when the clutch is in the closed state.

[0092] In one feasible implementation, the strategy matching module 30 is further configured to: When the target start strategy is detected to be the first preset start strategy, the engine is driven to rotate by the low-voltage starter motor, and the real-time speed of the engine is detected. When the real-time rotational speed is detected to have reached the preset ignition speed, the clutch is controlled to enter the disengaged state. Determine the target disengagement duration corresponding to the clutch, and detect the real-time disengagement duration of the clutch in the disengaged state; If the real-time disconnection duration is detected to reach the target disconnection duration, the clutch is controlled to enter the closed state to start the engine.

[0093] In one feasible implementation, the strategy matching module 30 is further configured to: Read the real-time ambient temperature parameter included in the driving condition parameters; Obtain a preset temperature-time mapping relationship, wherein the temperature-time mapping relationship includes multiple preset temperature ranges and a preset disconnection duration matched for each of the multiple preset temperature ranges; Based on the real-time ambient temperature parameters, the temperature-time mapping relationship is queried to determine the target disconnection duration that matches the real-time ambient temperature parameters.

[0094] In one feasible implementation, the strategy matching module 30 is further configured to: If the target starting strategy is detected to be the second preset starting strategy, the clutch is controlled to enter the closed state; The engine is started by rotating the low-voltage starter motor.

[0095] In one feasible implementation, the vehicle further includes an independent air tank connected to the clutch; the strategy matching module 30 is further configured to: If the real-time transmission air pressure is detected to be lower than the first preset air pressure threshold, the remaining air pressure parameter of the independent air storage tank is collected. If the remaining air pressure parameter is detected to be greater than or equal to the second preset air pressure threshold, the independent air tank is controlled to supply air to the clutch so that the real-time transmission air pressure of the transmission is greater than or equal to the first preset air pressure threshold.

[0096] In one feasible implementation, the strategy matching module 30 is further configured to: If the engine starting mode is detected to be the high-pressure starting mode, a third preset starting strategy is determined as the target starting strategy. The third preset starting strategy is a preset starting strategy in which the engine is started by the high-pressure starter motor when the clutch is in the closed state.

[0097] The engine starting device provided in this application, employing the engine starting method described in the above embodiments, can solve the technical problem in related technologies where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Compared with the prior art, the beneficial effects of the engine starting device provided in this application are the same as those of the engine starting method provided in the above embodiments, and other technical features in the engine starting device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0098] This application provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the engine starting method in Embodiment 1 above.

[0099] The following is for reference. Figure 5 The diagram illustrates a structural schematic of an electronic device suitable for implementing embodiments of this application. The electronic device in the embodiments of this application may include, but is not limited to, an electronic device capable of connecting to a vehicle's powertrain control system as the executing entity. It is understood that this electronic device may specifically be an ECU within the vehicle. Figure 5 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0100] like Figure 5 As shown, the electronic device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory 1002 or a program loaded from a storage device 1003 into a random access memory 1004. The random access memory 1004 also stores various programs and data required for the operation of the electronic device. The processing unit 1001, the read-only memory 1002, and the random access memory 1004 are interconnected via a bus 1005. An input / output interface 1006 is also connected to the bus. Typically, the following systems can be connected to the input / output interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. The communication device 1009 allows the electronic device to communicate wirelessly or wiredly with other devices to exchange data. Although the diagrams show electronic devices with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0101] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from read-only memory 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0102] The electronic device provided in this application, employing the engine starting method described in the above embodiments, can solve the technical problem in related technologies where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Compared with the prior art, the beneficial effects of the electronic device provided in this application are the same as those of the engine starting method provided in the above embodiments, and other technical features of this electronic device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0103] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0104] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0105] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the engine starting method in the above embodiments.

[0106] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0107] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0108] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: collect driving condition parameters of the vehicle; determine the engine start mode corresponding to the vehicle based on the driving condition parameters, wherein the engine start mode is a low-pressure start mode or a high-pressure start mode; determine a target start strategy matching the engine start mode; and start the vehicle's engine according to the target start strategy.

[0109] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0110] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0111] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0112] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described engine starting method. This solves the technical problem in related technologies where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the engine starting method provided in the above embodiments, and will not be elaborated upon here.

[0113] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the engine starting method described above.

[0114] The computer program product provided in this application can solve the technical problem in related technologies where engines frequently fail to start in low-temperature environments, leading to a significant increase in the risk of cylinder flooding. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the engine starting method provided in the above embodiments, and will not be repeated here.

[0115] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An engine starting method, characterized in that, The engine starting method is applied to a vehicle, and the method includes: Collect the driving condition parameters of the vehicle; The engine start mode corresponding to the vehicle is determined based on the driving condition parameters, wherein the engine start mode is a low-pressure start mode or a high-pressure start mode. Determine the target start strategy that matches the engine start mode, and start the vehicle's engine according to the target start strategy.

2. The engine starting method as described in claim 1, characterized in that, The step of determining the engine start mode corresponding to the vehicle based on the driving condition parameters includes: Read the real-time vehicle speed parameters, real-time water temperature parameters, and real-time discharge power included in the driving condition parameters; The engine start mode of the vehicle is determined by combining the real-time vehicle speed parameters, the real-time water temperature parameters, and the real-time discharge power.

3. The engine starting method as described in claim 2, characterized in that, The step of determining the engine start mode corresponding to the vehicle by combining the real-time vehicle speed parameters, the real-time water temperature parameters, and the real-time discharge power includes: If the real-time vehicle speed parameter is detected to be greater than or equal to a preset vehicle speed threshold and / or the real-time water temperature parameter is less than or equal to a preset water temperature threshold, and the real-time discharge power is less than or equal to a preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the low-pressure start mode. or, If the real-time vehicle speed parameter is less than the preset vehicle speed threshold, the real-time water temperature parameter is greater than the preset water temperature threshold, and the real-time discharge power is greater than the preset discharge power threshold, the engine start mode corresponding to the vehicle is determined to be the high-pressure start mode.

4. The engine starting method as described in claim 1, characterized in that, The vehicle includes a transmission, a clutch, a low-voltage starter motor, and an engine, the engine being connected via the transmission and the low-voltage starter motor, and the transmission being connected to the clutch; The step of determining the target start-up strategy that matches the engine start-up mode includes: When the engine start mode is detected to be the low-pressure start mode, the real-time transmission air pressure of the transmission is collected, and a first preset air pressure threshold is obtained. If the real-time transmission air pressure is detected to be greater than or equal to the first preset air pressure threshold, the first preset start strategy is determined as the target start strategy, wherein the first preset start strategy is a preset start strategy that drives the engine to start by the low-pressure starter motor when the clutch is in the disengaged state. If the real-time transmission air pressure is detected to be less than the first preset air pressure threshold, a second preset start strategy is determined as the target start strategy. The second preset start strategy is a preset start strategy in which the engine is started by the low-pressure starter motor when the clutch is in the closed state.

5. The engine starting method as described in claim 4, characterized in that, The step of starting the vehicle's engine according to the target starting strategy includes: When the target start strategy is detected to be the first preset start strategy, the engine is driven to rotate by the low-voltage starter motor, and the real-time speed of the engine is detected. When the real-time rotational speed is detected to have reached the preset ignition speed, the clutch is controlled to enter the disengaged state. Determine the target disengagement duration corresponding to the clutch, and detect the real-time disengagement duration of the clutch in the disengaged state; If the real-time disconnection duration is detected to reach the target disconnection duration, the clutch is controlled to enter the closed state to start the engine.

6. The engine starting method as described in claim 5, characterized in that, The step of determining the target disengagement duration corresponding to the clutch includes: Read the real-time ambient temperature parameter included in the driving condition parameters; Obtain a preset temperature-time mapping relationship, wherein the temperature-time mapping relationship includes multiple preset temperature ranges and a preset disconnection duration matched for each of the multiple preset temperature ranges; Based on the real-time ambient temperature parameters, the temperature-time mapping relationship is queried to determine the target disconnection duration that matches the real-time ambient temperature parameters.

7. The engine starting method as described in claim 4, characterized in that, The step of starting the vehicle's engine according to the target starting strategy includes: If the target starting strategy is detected to be the second preset starting strategy, the clutch is controlled to enter the closed state; The engine is started by rotating the low-voltage starter motor.

8. The engine starting method as described in claim 4, characterized in that, The vehicle also includes an independent air tank, which is connected to the clutch. After the step of obtaining the first preset air pressure threshold, the method further includes: If the real-time transmission air pressure is detected to be lower than the first preset air pressure threshold, the remaining air pressure parameter of the independent air storage tank is collected. If the remaining air pressure parameter is detected to be greater than or equal to the second preset air pressure threshold, the independent air tank is controlled to supply air to the clutch so that the real-time transmission air pressure of the transmission is greater than or equal to the first preset air pressure threshold.

9. The engine starting method as described in claim 1, characterized in that, The vehicle also includes a high-voltage starter motor; The step of determining the target start-up strategy that matches the engine start-up mode includes: If the engine starting mode is detected to be the high-pressure starting mode, a third preset starting strategy is determined as the target starting strategy. The third preset starting strategy is a preset starting strategy in which the engine is started by the high-pressure starter motor when the clutch is in the closed state.

10. An electronic device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the engine starting method as described in any one of claims 1 to 9.

11. A vehicle, characterized in that, The vehicle includes the electronic equipment as described in claim 10.

12. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the engine starting method as described in any one of claims 1 to 9.

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