Engine starting method, system, medium and hybrid vehicle of a hybrid vehicle

Abstract

The application discloses an engine starting method and system of a hybrid vehicle, a medium and the hybrid vehicle. The method comprises the following steps: determining a first residual power of a power battery according to a current discharge power of the power battery and a current working power of a DC-DC converter; the current working power is the sum of the working powers of all domain controllers in the hybrid vehicle; if the first residual power is lower than the required power for starting the engine, determining a second residual power of the power battery according to the current discharge power and the minimum working power; if the second residual power is higher than the required power for starting the engine, determining a target limiting power according to the current working power and the minimum working power; limiting the execution power of a first type of function executor under the domain controller according to the target limiting power, and starting the engine; wherein the first type of function executor is used to provide functions other than the basic functions required for driving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, and particularly relates to an engine starting method and system for a hybrid vehicle, a medium and the hybrid vehicle. BACKGROUND

[0002] In a hybrid vehicle, the engine, the generator and the power battery are in a close cooperative relationship. The engine is a traditional power source, which can directly drive the vehicle to move forward. The generator is usually connected with the engine to convert the mechanical energy of the engine into electrical energy. The power battery is used to store the electrical energy from the generator or an external charging device. When the power battery cannot store enough electrical energy to support the vehicle to move, the engine is started.

[0003] The engine is usually not configured with a separate starter when starting, but uses the generator to trigger the starting. When the extreme conditions such as low temperature and low power cause the discharge power of the power battery to be too low, the power battery cannot provide enough power for the generator to start the engine to generate power, resulting in that the vehicle cannot move normally even if it has oil. For example, if the generator needs 5kw of power to start the engine, and the remaining power of the power battery is less than 5kw, the power battery is insufficient to support the generator to start the engine, resulting in that the vehicle is stuck.

[0004] Therefore, the existing technology has the problem that when the remaining power of the power battery is too low to support the starting of the engine, the vehicle can only be stuck and wait for rescue. SUMMARY

[0005] In order to solve or partially solve the technical problem that when the remaining power of the power battery is too low to support the starting of the engine, the vehicle can only be stuck and wait for rescue, the present application provides an engine starting method and system for a hybrid vehicle, a medium and the hybrid vehicle. When the remaining power of the power battery cannot meet the starting demand of the engine, the execution power of the first type of function executor under the domain controller is limited, so that the power battery can support the starting of the engine to replace the driving of the vehicle, thereby reducing the probability of the vehicle being stuck.

[0006] To solve the above technical problems, the first aspect of the present application discloses an engine starting method for a hybrid vehicle, the method comprising:

[0007] determining a first remaining power of the power battery according to the current discharge power of the power battery and the current working power of the DC-DC converter; the current working power is the sum of the working powers of all domain controllers in the hybrid vehicle;

[0008] if the first remaining power is lower than the required power for starting the engine, determining a second remaining power of the power battery according to the current discharge power and the minimum working power;

[0009] if the second residual power is above the power required for starting the engine, determining a target limit power according to the current working power and the minimum working power;

[0010] limiting execution power of a first type of function executor under the domain controller according to the target limit power, and starting the engine; wherein the first type of function executor is used to provide functions other than basic functions required for driving.

[0011] Optionally, the limiting execution power of the first type of function executor under the domain controller according to the target limit power specifically includes:

[0012] determining a target limit power grade from a set of limit power grades according to the target limit power;

[0013] counting device types of a plurality of the first type of function executors under the domain controller;

[0014] determining individual limit power percentages of the plurality of the first type of function executors under the domain controller according to the target limit power grade and the device types;

[0015] limiting execution power of corresponding first type of function executors according to the limit power percentages.

[0016] Optionally, the set of limit power grades and limit power have a mapping relationship; and the determining a target limit power grade from a set of limit power grades according to the target limit power specifically includes:

[0017] determining the target limit power grade from the mapping relationship between the set of limit power grades and limit power according to the target limit power.

[0018] Optionally, the limiting execution power of corresponding first type of function executors according to the limit power percentages specifically includes:

[0019] reducing execution power of corresponding first type of function executors according to the limit power percentages to obtain individual limit power;

[0020] generating a limit power supply command according to the individual limit power;

[0021] sending the limit power supply command to corresponding domain controllers to control corresponding first type of function executors to work according to the individual limit power.

[0022] Optionally, after the limiting execution power of the first type of function executor under the domain controller according to the target limit power, the method further includes:

[0023] Limiting the execution power of the second type of functional actuators under the domain controller is prohibited; wherein the second type of functional actuators are used to provide the basic functions required for vehicle operation.

[0024] Optionally, starting the engine specifically includes:

[0025] Real-time monitoring of the actual operating power of the DC-DC converter;

[0026] If the difference between the current discharge power and the actual operating power is above the power required to start the engine, an engine start command is generated.

[0027] The engine start command is sent to the domain controller where the generator is located to control the generator to start the engine.

[0028] Optionally, after starting the engine, the method further includes:

[0029] Remove the power restriction on the first type of functional actuators under the domain controller.

[0030] A second aspect of the present invention discloses an engine starting system for a hybrid vehicle, comprising:

[0031] The first determining module is used to determine the first remaining power of the power battery based on the current discharge power of the power battery and the current operating power of the DC-DC converter; the current operating power is the sum of the operating power of all domain controllers in the hybrid vehicle;

[0032] The second determining module is used to determine the second remaining power of the power battery based on the current discharge power and the minimum operating power if the first remaining power is lower than the power required to start the engine.

[0033] The third determining module is used to determine the target limiting power based on the current operating power and the minimum operating power if the second remaining power is above the power required for engine startup.

[0034] A limiting module is used to limit the execution power of a first type of functional actuator under the domain controller according to the target limiting power, and to start the engine; wherein the first type of functional actuator is used to provide functions other than the basic functions required for driving.

[0035] Optionally, the limiting module specifically includes:

[0036] The fourth determining module is used to determine the target power limit level from the power limit level set based on the target power limit.

[0037] The statistics module is used to count the device types of several first-type functional actuators under the domain controller;

[0038] The fifth determining module is used to determine the power limiting percentage of each of the first type of functional actuators under the domain controller based on the target power limiting level and the device type;

[0039] The limiting submodule is used to limit the execution power of the corresponding first-type functional actuator according to the power limiting percentage.

[0040] Optionally, there is a mapping relationship between the power limit level set and the power limit; the fourth determining module is specifically used to determine the target power limit level from the mapping relationship between the power limit level set and the power limit based on the target power limit.

[0041] Optionally, the limiting submodule is specifically used for:

[0042] The individual power limit is obtained by reducing the execution power of the corresponding first-class function actuator according to the power limit percentage.

[0043] Generate a power supply limitation command based on the individual power limit;

[0044] The power supply limit command is sent to the corresponding domain controller to control the corresponding first type of function actuator to operate according to the individual power limit.

[0045] Optionally, the system further includes:

[0046] The disable module is used to disable or limit the execution power of the second type of functional actuators under the domain controller; wherein the second type of functional actuators are used to provide the basic functions required for vehicle operation.

[0047] Optionally, the limiting module is further configured to:

[0048] Real-time monitoring of the actual operating power of the DC-DC converter;

[0049] If the difference between the current discharge power and the actual operating power is above the power required to start the engine, an engine start command is generated.

[0050] The engine start command is sent to the domain controller where the generator is located to control the generator to start the engine.

[0051] Optionally, the system further includes:

[0052] The cancellation module is used to cancel the limitation on the execution power of the first type of functional actuator under the domain controller.

[0053] A third aspect of the present invention discloses a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the above-described method.

[0054] A fourth aspect of the present invention discloses a hybrid vehicle, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the above-described method.

[0055] Through one or more technical solutions of the present invention, the present invention has the following beneficial effects or advantages:

[0056] This invention provides a method, system, medium, and hybrid vehicle for starting the engine of a hybrid vehicle. The method determines a first remaining power of the power battery based on its current discharge power and the current operating power of the DC-DC converter. If the first remaining power is lower than the power required for engine starting, it indicates that the power battery cannot temporarily provide the power required for engine starting. Then, a second remaining power of the power battery is determined based on the current discharge power and the minimum operating power. If the second remaining power is higher than the power required for engine starting, it indicates that the power battery can provide the power required for engine starting after power limiting. Then, a target limiting power is determined based on the current operating power and the minimum operating power. The execution power of a first-type function actuator under the domain controller is limited according to the target limiting power, reducing the power consumption of the first-type function actuator. This allows the power battery to meet the power requirements for engine starting, thereby successfully starting the engine and allowing the engine to take over driving the vehicle, thus reducing the probability of vehicle breakdown and improving vehicle safety.

[0057] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0058] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0059] Figure 1 A flowchart of an engine starting method for a hybrid vehicle according to an embodiment of the present invention is shown;

[0060] Figure 2 A schematic diagram of a centrally integrated architecture for a hybrid vehicle according to an embodiment of the present invention is shown;

[0061] Figure 3 A schematic diagram of an engine starting system for a hybrid vehicle according to an embodiment of the present invention is shown. Detailed Implementation

[0062] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0063] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0064] Firstly, such as Figure 1 As shown, the engine starting method for a hybrid vehicle provided in this embodiment of the invention includes at least the following steps:

[0065] S101, determine the first remaining power of the power battery based on the current discharge power of the power battery and the current operating power of the DC-DC converter.

[0066] For details, please refer to Figure 2 Hybrid vehicles are managed using a centrally integrated architecture. This architecture includes a central processor and distributed domain controllers: a powertrain domain controller, a VIU-F (front vehicle domain controller), a VIU-MF (left-hand vehicle domain controller), a VIU-MR (right-hand vehicle domain controller), and a VIU-R (rear vehicle domain controller). Low-voltage power to each domain controller is supplied from the battery to the distribution box and controlled by either a KL30 or KL15 power supply.

[0067] Each domain controller (VIU) has different actuators connected to it. These include, for example, the engine, battery management system, generator, DC-DC converter, and seat massage module (WSM), providing functions such as signal routing, power supply, accessory driving, and sensor signal acquisition.

[0068] In this embodiment, the actuators under each domain controller (VIU) are divided into two categories based on their functions: Category 1 functional actuators and Category 2 functional actuators. Category 1 functional actuators provide functions other than those required for vehicle operation. Category 2 functional actuators provide the basic functions required for vehicle operation.

[0069] The central processing unit (CPU) controls the power supply of each actuator through the domain controller. For example, if the CPU sends a power supply command to Device3-3 to the VIU-MR, Device3-3 of the VIU will output voltage to supply power to the actuator corresponding to the seat massage module WSM. Similarly, the CPU can also send a power off command to stop supplying power to the actuator corresponding to the seat massage module WSM.

[0070] Before determining the first remaining power of the power battery, the current state of the engine is detected. If the current state of the engine is not running, the current discharge power of the power battery and the current operating power of the DC-DC converter are collected in real time.

[0071] The current discharge power of the power battery refers to the rate at which the power battery releases electrical energy to an external load at the current moment, measured in kW. The current operating power of the DC-DC converter is the sum of the operating power of all domain controllers in the hybrid vehicle. The first remaining power of the power battery is obtained by subtracting the current discharge power of the power battery from the current operating power of the DC-DC converter.

[0072] S102, if the first remaining power is lower than the power required to start the engine, then the second remaining power of the power battery is determined based on the current discharge power and the minimum operating power.

[0073] Specifically, it involves determining the initial remaining power of the power battery and the power required by the engine.

[0074] If the initial remaining power of the power battery is above the power required by the engine, it means that the remaining power of the power battery is sufficient to support the hybrid vehicle to run in pure electric mode. At this time, the engine will not be started and will remain in a non-running state.

[0075] If the first remaining power is lower than the power required to start the engine, it means that the power battery cannot meet the power required to start the engine, and the current available power of the power battery is insufficient to start the engine.

[0076] For example, the power required to start the engine is P-start = 5kW. The first remaining power P1 = 6kW - 4kW = 2kW < 5kW, indicating that the current available power of the battery is insufficient to support engine starting. Therefore, the minimum operating power of the DC-DC converter is triggered. The minimum operating power of the DC-DC converter refers to the minimum power limit at which the DC-DC converter can operate normally and provide basic driving functions for the hybrid vehicle.

[0077] Furthermore, the current discharge power is subtracted from the minimum operating power to obtain the second remaining power of the power battery.

[0078] S103, if the second remaining power is above the power required to start the engine, determine the target limiting power based on the current operating power and the minimum operating power.

[0079] Specifically, the second remaining power of the power battery and the power required to start the engine are compared. If the second remaining power is less than the power required to start the engine, it means that even limiting the power of each domain controller cannot support engine starting.

[0080] If the second remaining power is above the power required to start the engine, it means that the power battery can support engine starting after power limiting. Therefore, the target limiting power is determined based on the current operating power and the minimum operating power. The target limiting power serves as a reference standard for limiting the execution power of the first type of functional actuator. For example, the power required to start the engine is P-start = 5kW. The second remaining power P2 = 6kW - 0.5kW = 5.5kW, which is greater than 5kW, indicating that the power battery can support the power required to start the engine. Therefore, the target limiting power P is calculated. 目 4kW - 0.5kW = 3.5kW means that the power output of the first-class functional actuator needs to be limited to 3.5kW so that the power battery can meet the minimum requirements for starting the engine.

[0081] S104, limit the execution power of the first type of functional actuator under the domain controller according to the target power limit, and start the engine.

[0082] In limiting the power output of Category I function actuators, the power limitation is primarily applied to these actuators. Category I function actuators provide functions beyond those required for basic vehicle operation; therefore, limiting their power output will not affect driving safety.

[0083] Specifically, based on the target power limit, the target power limit level is determined from the power limit level set. There is a mapping relationship between the power limit level set and the power limit. During execution, the target power limit level is determined from the mapping relationship between the power limit level set and the power limit, based on the target power limit.

[0084] For example, the power limitation level set specifically includes three levels: Level 1 to Level 3, with the power limitation range increasing sequentially. Level 1 has the smallest power limitation range, and Level 3 has the largest. The power limitation range for Level 1 is 0~1kW, for Level 2 it is 1~2kW, and for Level 3 it is 2~4kW. If the target power limitation P... 目 =3.5kw, then the target power limit level is determined to be Level 3.

[0085] Each domain controller contains Class 1 and / or Class 2 functional actuators. Each actuator has a different device type, its own operating power, and a different power limitation percentage at different power limit levels. Therefore, it is necessary to statistically analyze the device types of several Class 1 functional actuators under the domain controller. Based on the target power limit level and device type, the power limitation percentage for each Class 1 functional actuator under the domain controller can be determined. The operating power of the corresponding Class 1 functional actuator is then limited according to its power limitation percentage.

[0086] See Table 1 for the percentage of power limitation for several Class I function actuators at different power limitation levels.

[0087] Table 1

[0088]

[0089] In Table 1, there are no restrictions on use at Level 0. The power restrictions increase progressively from Level 1 to Level 3. At Level 3, only the blower has a power restriction percentage of 75%, allowing it to operate at 25% of its maximum power. All other devices are restricted to 100% power and cannot operate. The low-voltage power in this section is as low as 0.15 kW.

[0090] In the specific process of power limiting, the execution power of the corresponding first-type function actuator is reduced according to the power limiting percentage to obtain the individual power limit; a power limiting command is generated according to the individual power limit; the power limiting command is sent to the corresponding domain controller to control the corresponding first-type function actuator to work according to the individual power limit.

[0091] Taking the function actuator of the seat massage function as an example, when the target power limit level is determined to be level 3, the seat massage function needs to be turned off (the individual power limit is 100%). Then the central controller sends a Devcive3-3 power-off command to the domain controller corresponding to the function actuator of the seat massage function. The domain controller controls the Devcive3-3 port to be powered off, so the seat massage is powered off and does not work, and the power consumption of the seat massage is reduced to 0.

[0092] In one alternative implementation, after limiting the execution power of the first type of functional actuator under the domain controller according to the target power limit, in order to ensure basic driving requirements, limiting the execution power of the second type of functional actuator under the domain controller is prohibited, so that the second type of functional actuator can continue to operate normally.

[0093] In one optional implementation, during the engine startup process, the actual operating power of the DC-DC converter is monitored in real time; if the difference between the current discharge power and the actual operating power is above the power required to start the engine, it indicates that the power battery can support engine startup, and the generator has sufficient power to drive the engine to start, then an engine startup command is generated; the engine startup command is sent to the domain controller where the generator is located to control the generator to start the engine.

[0094] In one optional implementation, after the engine is started, the power restriction on the first type of functional actuators under the domain controller is lifted. Specifically, after the engine starts successfully, the central processing unit (CPU) restores the power supply requests to each domain controller, and each actuator is restored to power. Based on the operating status of each domain controller, the CPU resends the operating status command after the actuators under each domain controller have their power supply restored, instructing the actuators under each domain controller to resume operation.

[0095] In existing technologies, when the remaining power of the power battery is too low to start the engine, the vehicle is stranded and must wait for roadside assistance. This technical solution, however, briefly reduces the operating power of the Type I function actuators under each domain controller, allowing more power to be used to start the engine. Once the engine starts successfully, it takes over driving the vehicle and charging the power battery, thus reducing the probability of the vehicle breaking down. Furthermore, the time spent shutting down the Type I function actuators under each domain controller is extremely short, with minimal impact on the user experience, thus alleviating the probability of vehicle breakdown with minimal disruption to the user experience.

[0096] Secondly, based on the same inventive concept as the hybrid vehicle engine starting method provided in the first aspect embodiment, this invention also provides a hybrid vehicle engine starting system, see below. Figure 3 ,include:

[0097] The first determining module 301 is used to determine the first remaining power of the power battery based on the current discharge power of the power battery and the current operating power of the DC-DC converter; the current operating power is the sum of the operating power of all domain controllers in the hybrid vehicle;

[0098] The second determining module 302 is used to determine the second remaining power of the power battery based on the current discharge power and the minimum operating power if the first remaining power is lower than the power required to start the engine.

[0099] The third determining module 303 is used to determine a target limiting power based on the current operating power and the minimum operating power if the second remaining power is above the power required to start the engine.

[0100] The limiting module 304 is used to limit the execution power of the first type of functional actuator under the domain controller according to the target limiting power, and start the engine; wherein the first type of functional actuator is used to provide functions other than the basic functions required for driving.

[0101] It should be noted that the specific methods by which each module performs operations in the hybrid vehicle engine starting system provided in the embodiments of the present invention have been described in detail in the method embodiments provided in the first aspect above. The specific implementation process can be referred to the method embodiments provided in the first aspect above, and will not be described in detail here.

[0102] Thirdly, based on the same inventive concept as the engine starting method for hybrid vehicles provided in the first aspect of the embodiments described above, the embodiments of the present invention also disclose a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0103] Fourthly, based on the same inventive concept as the hybrid vehicle engine starting method provided in the first aspect embodiment, this embodiment of the invention also discloses a hybrid vehicle, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the methods described above.

[0104] Through one or more embodiments of the present invention, the present invention has the following beneficial effects or advantages:

[0105] This invention provides a method, system, medium, and hybrid vehicle for starting the engine of a hybrid vehicle. The method determines a first remaining power of the power battery based on its current discharge power and the current operating power of the DC-DC converter. If the first remaining power is lower than the power required for engine starting, it indicates that the power battery cannot temporarily provide the power required for engine starting. Then, a second remaining power of the power battery is determined based on the current discharge power and the minimum operating power. If the second remaining power is higher than the power required for engine starting, it indicates that the power battery can provide the power required for engine starting after power limiting. Then, a target limiting power is determined based on the current operating power and the minimum operating power. The execution power of a first-type function actuator under the domain controller is limited according to the target limiting power, reducing the power consumption of the first-type function actuator. This allows the power battery to meet the power requirements for engine starting, thereby successfully starting the engine and allowing the engine to take over driving the vehicle, thus reducing the probability of vehicle breakdown and improving vehicle safety.

[0106] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0107] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for starting the engine of a hybrid vehicle, characterized in that, The method includes: The first remaining power of the power battery is determined based on the current discharge power of the power battery and the current operating power of the DC-DC converter; the current operating power is the sum of the operating power of all domain controllers in the hybrid vehicle. If the first remaining power is lower than the power required to start the engine, then the second remaining power of the power battery is determined based on the current discharge power and the minimum operating power. If the second remaining power is above the power required to start the engine, the target limiting power is determined based on the current operating power and the minimum operating power. The execution power of the first type of functional actuator under the domain controller is limited according to the target power limit, and the engine is started; wherein the first type of functional actuator is used to provide functions other than the basic functions required for driving.

2. The method as described in claim 1, characterized in that, The step of limiting the execution power of the first type of functional actuator under the domain controller according to the target power limit specifically includes: Based on the target power limit, the target power limit level is determined from a preset set of power limit levels; The device types of several first-type functional actuators under the domain controller are statistically analyzed; Based on the target power limit level and the device type, determine the power limit percentage of each of the first type of functional actuators under the domain controller; The execution power of the corresponding first-class functional actuator is limited according to the power limit percentage.

3. The method as described in claim 2, characterized in that, There is a mapping relationship between the power limitation level set and the power limitation; determining the target power limitation level from the power limitation level set based on the target power limitation specifically includes: The target power limit level is determined from the mapping relationship between the power limit level set and the power limit level, based on the target power limit.

4. The method as described in claim 2, characterized in that, The limitation of the execution power of the corresponding first-type functional actuator according to the power limitation percentage specifically includes: By reducing the execution power of the corresponding first-class functional actuator according to the power limitation percentage, the individual power limitation of the corresponding first-class functional actuator is obtained. Generate a power supply limitation command based on the individual power limit; The power supply limit command is sent to the corresponding domain controller to control the corresponding first type of function actuator to operate according to the individual power limit.

5. The method as described in claim 1, characterized in that, After limiting the execution power of the first type of functional actuator under the domain controller according to the target power limit, the method further includes: Limiting the execution power of the second type of functional actuators under the domain controller is prohibited; wherein the second type of functional actuators are used to provide the basic functions required for vehicle operation.

6. The method as described in claim 1, characterized in that, Starting the engine specifically includes: Real-time monitoring of the actual operating power of the DC-DC converter; If the difference between the current discharge power and the actual operating power is above the power required to start the engine, an engine start command is generated. The engine start command is sent to the domain controller where the generator is located to control the generator to start the engine.

7. The method as described in claim 1, characterized in that, After starting the engine, the method further includes: Remove the power restriction on the first type of functional actuators under the domain controller.

8. An engine starting system for a hybrid vehicle, characterized in that, include: The first determining module is used to determine the first remaining power of the power battery based on the current discharge power of the power battery and the current operating power of the DC-DC converter; the current operating power is the sum of the operating power of all domain controllers in the hybrid vehicle; The second determining module is used to determine the second remaining power of the power battery based on the current discharge power and the minimum operating power if the first remaining power is lower than the power required to start the engine. The third determining module is used to determine the target limiting power based on the current operating power and the minimum operating power if the second remaining power is above the power required for engine startup. A limiting module is used to limit the execution power of a first type of functional actuator under the domain controller according to the target limiting power, and to start the engine; wherein the first type of functional actuator is used to provide functions other than the basic functions required for driving.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the method according to any one of claims 1-7.

10. A hybrid vehicle, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method according to any one of claims 1-7.

Images