Engine control method, controller, vehicle, medium and product

Abstract

The present application discloses an engine control method, a controller, a vehicle, a medium and a product. By controlling the operating state of the engine of a target device according to the allowed charging power of the battery of the target device and / or the recovery power of the drive motor of the target device, the engine is operated at a stable speed, which can reduce the jitter and stall of the target device, improve the user experience of the target device and enhance the safety.

Description

Technical Field

[0001] The present application relates to the field of automotive technology, and in particular to an engine control method, a controller, a vehicle, a medium, and a product, wherein the medium is a computer-readable storage medium and the product is a computer program product. Background Art

[0002] The engine is an important component of the target device. Its operation will directly affect the operation of the device. If the engine speed fluctuates frequently, it will cause the target device to shake and stall, reducing the user experience and safety of the target device. Summary of the Invention

[0003] The embodiments of the present application provide an engine control method, controller, vehicle, medium and product, which can achieve stable speed control of the engine of a target device, thereby improving the user experience and safety of the target device.

[0004] To achieve the above objectives, according to a first aspect of the present application, an engine control method is provided, comprising:

[0005] According to the allowed charging power of the battery of the target device and / or the recovery power of the driving motor of the target device, the working state of the engine of the target device is controlled so that the engine operates at a stable speed.

[0006] In one embodiment, the method further comprises:

[0007] When the target device is in a target operating condition, the operating state of the engine of the target device is controlled so that the engine operates at a stable speed.

[0008] In one embodiment, the target operating condition includes a series power generation condition.

[0009] In one embodiment, controlling the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the regenerative power of the drive motor of the target device includes:

[0010] When the battery's allowable charging power and the recovery power satisfy a preset relationship, the engine is controlled to be in a power generation stop state.

[0011] In one embodiment, controlling the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the regenerative power of the drive motor of the target device includes:

[0012] When the engine is in a stopped power generation state, the operating state of the engine of the target device is controlled according to the driving state of the target device, the battery allowable charging power and / or the regenerative power.

[0013] In one embodiment, controlling the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery, and / or the regenerative power includes:

[0014] When the driving state includes a coasting state, a deceleration state, or an acceleration state, and the battery's allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to be in a power generation state.

[0015] In one embodiment, the method further comprises:

[0016] When the accelerator pedal depth of the target device meets a first preset condition, the duration of the increase in the brake pedal depth meets a second preset condition, and the driving speed of the target device meets a third preset condition, it is determined that the target device is in the deceleration state.

[0017] In one embodiment, controlling the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery, and / or the regenerative power includes:

[0018] When the driving state includes a stable driving state and the battery allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to remain in a power generation stop state.

[0019] In one embodiment, the method further comprises:

[0020] When the change in the accelerator pedal depth of the target device meets the fourth preset condition, the change in the brake pedal depth meets the fifth preset condition, and / or the driving speed of the target device meets the sixth preset condition, it is determined that the target device is in the stable driving state.

[0021] In one embodiment, the method further comprises:

[0022] The power generated by the engine in the power generation state is limited according to the allowed charging power of the battery of the target device and / or the actual power of the driving motor of the target device.

[0023] In one embodiment, limiting the power generated by the engine in the power generation state according to the allowed charging power of the battery of the target device and / or the actual power of the drive motor of the target device includes:

[0024] determining a limiting condition for the power generation of the engine according to the battery allowed charging power and / or the actual power;

[0025] The power generation power of the engine in the power generation state is limited based on the limiting condition.

[0026] In one embodiment, limiting the power generation of the engine in the power generation state based on the limiting condition includes:

[0027] determining a candidate power generation capacity of the engine in the power generation state;

[0028] When the candidate generated power does not satisfy the constraint condition, the candidate generated power is adjusted to obtain a generated power that satisfies the constraint condition.

[0029] In one embodiment, the candidate power generation power is determined according to the current battery power of the target device, and the engine is in a power generation state to charge the battery.

[0030] In one embodiment, determining the limiting condition for the power generation of the engine based on the allowed charging power of the battery and / or the actual power includes:

[0031] Determining the sum of the allowed charging power of the battery and the actual power;

[0032] A restriction condition on the generated power of the engine is determined according to the capable power of the generator of the target device and the sum of the powers.

[0033] In one embodiment, the target device comprises a vehicle.

[0034] According to a second aspect of the present application, there is provided an engine control device, comprising:

[0035] The control unit is configured to control the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the recovery power of the driving motor of the target device, so that the engine operates at a stable speed.

[0036] According to a third aspect of the present application, a controller is provided, comprising a memory and a processor; the memory stores a computer program, and the processor is used to run the computer program in the memory to execute any engine control method provided in the embodiments of the present application.

[0037] According to a fourth aspect of the present application, a vehicle is provided, comprising a controller; the vehicle executes any one of the engine control methods provided in the embodiments of the present application through the controller.

[0038] According to a fifth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store a computer program, and the computer program is loaded by a processor to execute any engine control method provided in the embodiments of the present application.

[0039] According to a sixth aspect of the present application, a computer program product is provided, which includes a computer program or instructions, and the computer program or instructions are loaded by a processor to execute any engine control method provided in the embodiments of the present application.

[0040] The embodiment of the present application controls the working state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the recovery power of the drive motor of the target device, so that the engine runs at a stable speed, which can reduce the jitter and stalling of the target device, improve the user experience of the target device and enhance the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0042] Figure 1 is a flow chart of an engine control method provided by an embodiment of the present application;

[0043] Figure 2 is another flow chart of the engine control method provided by an embodiment of the present application;

[0044] Figure 3 is a schematic diagram of an engine control system provided by an embodiment of the present application;

[0045] Figure 4 is a schematic diagram of an engine control device provided in an embodiment of the present application;

[0046] Figure 5 It is a schematic structural diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0048] The present invention provides an engine control method, an engine control device, a vehicle, and a computer-readable storage medium. The engine control device can be integrated into a vehicle.

[0049] It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0050] This embodiment will be described from the perspective of an engine control device, which may be integrated into a vehicle.

[0051] An engine control method provided in an embodiment of the present application is as follows: Figure 1 As shown, the specific process of the engine control method can be as follows:

[0052] 101. Control a working state of an engine of the target device according to the allowed charging power of a battery of the target device and / or the regenerative power of a driving motor of the target device, so that the engine operates at a stable speed.

[0053] In one embodiment, the target device includes a vehicle. Alternatively, the target device may be a vehicle such as a ship or an airplane, or other equipment other than a vehicle.

[0054] In one embodiment, when the target device is in a target operating condition, the operating state of the engine of the target device may be controlled so that the engine operates at a stable speed.

[0055] In one embodiment, the target operating condition includes a series power generation condition. If the target device is a vehicle, the vehicle's engine is started, the generator charges the battery, and the drive motor serves as the vehicle's power source. The target operating condition may also include other operating conditions besides the series power generation condition, such as a parallel power generation condition or a full-load condition.

[0056] In one embodiment, the step of “controlling the operating state of the engine of the target device” may include:

[0057] The operating state of the engine of the target device is controlled according to the device association information of the target device.

[0058] The device-related information may be information related to the operation of the device. For example, the device-related information may include the target device's battery's allowable charging power, regenerative power, accelerator pedal depth, brake pedal depth, driving speed, driving status, etc. The specific information can be flexibly set based on the specific application of the target device and is not limited here. The regenerative power may be the absolute value of the actual power of the drive motor during braking. When the drive motor is braking, the actual power is negative, and when the drive motor is driving, the actual power is positive.

[0059] In one embodiment, the device association information includes the allowed charging power and / or regeneration power of the battery of the target device. The step of “controlling the operating state of the engine of the target device according to the device association information of the target device” may include:

[0060] The operating state of the engine of the target device is controlled according to the allowed charging power and the recovery power of the battery of the target device.

[0061] The allowable charging power of the battery refers to the maximum charging power that the battery can accept under the premise of safe and effective charging.

[0062] Recovery power, also known as regenerative braking power, refers to the power stored in the battery when the drive motor's operating mode changes during the deceleration and braking of the target device, converting the vehicle's kinetic energy into electrical energy.

[0063] For example, when the regenerative power of the drive motor meets a condition (e.g., is less than a preset regenerative power), the operating state of the target device's engine may be controlled, for example, to generate electricity. Alternatively, when the battery's allowable charging power meets a condition (e.g., is less than a preset charging power), the operating state of the target device's engine may be controlled, for example, to stop generating electricity. Alternatively, when the regenerative power of the drive motor meets a condition (e.g., is less than a preset regenerative power) and the battery's allowable charging power meets a condition (e.g., is greater than the preset charging power), the operating state of the target device's engine may be controlled, for example, to generate electricity.

[0064] In one embodiment, the step of “controlling the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the regenerative power of the drive motor of the target device” may include:

[0065] When the battery's allowable charging power and the recovery power satisfy a preset relationship, the engine is controlled to be in a power generation stop state.

[0066] The preset relationship may be that the battery allows charging power to be less than the recovery power, and / or the battery allows charging power to approach the recovery power.

[0067] Optionally, the engine can be controlled to be in a power generation state when the battery's allowed charging power and recovery power do not satisfy a preset relationship. For example, the engine can be controlled to be in a power generation state when the battery's allowed charging power is greater than the recovery power, and / or the difference between the battery's allowed charging power and the recovery power is greater than a preset threshold.

[0068] In one embodiment, the device-associated information further includes a driving state. The step of “controlling the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the regenerative power of the drive motor of the target device” may include:

[0069] When the engine is in a stopped power generation state, the operating state of the engine of the target device is controlled according to the driving state of the target device, the battery allowable charging power and / or the regenerative power.

[0070] When the engine is in a stopped power generation state, the operating state of the engine of the target device is controlled according to the driving state of the target device, the battery's allowed charging power and the recovered power, for example, the engine is maintained in a stopped power generation state or switched to a power generation state.

[0071] For example, the operating state of the engine of the target device may be controlled in a coasting state, a decelerating state, an accelerating state, or a stable driving state according to the driving state of the target device, the allowed charging power of the battery, and / or the recovered power.

[0072] In one embodiment, the step of “controlling the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery, and / or the regenerative power” may include:

[0073] When the driving state includes a coasting state, a deceleration state, or an acceleration state, and the battery's allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to be in a power generation state.

[0074] The coasting state refers to a state in which the target device continues to operate by relying on its own inertia. For example, for a vehicle, the coasting state may refer to a state in which the driver releases the accelerator pedal (throttle) during the vehicle's driving process and no longer actively provides power to the vehicle, and the vehicle continues to move forward by relying on its own inertia.

[0075] The deceleration state may mean that the vehicle is decelerating or the driver wants to control the vehicle to decelerate. Whether the vehicle is in the deceleration state may be determined by the following conditions:

[0076] When the accelerator pedal depth of the target device meets a first preset condition, the duration of the increase in the brake pedal depth meets a second preset condition, and the driving speed of the target device meets a third preset condition, it is determined that the target device is in the deceleration state.

[0077] For example, for a vehicle, the accelerator is released, the brake pedal is depressed, and the vehicle speed meets the third preset condition (for example, drops to S2), and the duration reaches T1. At this time, it is considered that the driver requires the vehicle to decelerate rapidly, that is, it is determined that the vehicle is in a deceleration state.

[0078] The acceleration state can be determined by the driver releasing the brake pedal and stepping on the accelerator to accelerate, so as to determine that the vehicle is in the acceleration state.

[0079] In the deceleration state, the control resumes power generation after the power battery's allowable charging power limit exceeds the recovery power of the drive motor to prevent the braking regenerative torque from weakening.

[0080] When the target device is in a coasting state, a decelerating state, or an accelerating state, when the battery allows the charging power and the recovery power to satisfy a preset relationship, the engine is controlled to be in a power generation state. For example, when the battery allows the charging power to exceed the recovery power to satisfy a preset relationship, the engine is controlled to be in a power generation state.

[0081] In one embodiment, the step of “controlling the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery, and / or the regenerative power” may include:

[0082] When the driving state includes a stable driving state and the battery's allowable charging power and the regenerative power do not satisfy a predetermined relationship, the engine is controlled to remain in a stopped power generation state. This can avoid fluctuations in engine torque and ensure smoother operation of the target device.

[0083] The stable driving state may refer to the target device driving at a stable speed. Whether the target device is in the stable driving state may be determined based on the following conditions:

[0084] When the change in the accelerator pedal depth of the target device meets the fourth preset condition, the change in the brake pedal depth meets the fifth preset condition, and / or the driving speed of the target device meets the sixth preset condition, it is determined that the target device is in the stable driving state.

[0085] For example, for a vehicle, the brake pedal may be depressed, the vehicle speed may be greater than S2, and the vehicle speed may be stable within a certain range for a long time (that is, the driving speed of the target device satisfies the sixth preset condition), and at the same time, it is not recognized that the driver has stepped on the brakes for a long time (that is, the change in the brake pedal depth satisfies the fifth preset condition) or has stepped on the accelerator again or has released the accelerator for a long time (that is, the change in the accelerator pedal depth satisfies the fourth preset condition). At this time, it is considered that the driver is demanding to control the vehicle speed within the range, that is, it is determined that the target device is in a stable driving state.

[0086] In one embodiment, the engine control method provided by the embodiment of the present application may further include:

[0087] The power generated by the engine in the power generation state is limited according to the allowed charging power of the battery of the target device and / or the actual power of the driving motor of the target device.

[0088] Exemplarily, the power generation power of the engine in the power generation state can be controlled to be no greater than the allowable charging power of the battery; optionally, the power generation power of the engine in the power generation state can be controlled to be no greater than the actual power of the drive motor of the target device; optionally, the power generation power of the engine in the power generation state can be controlled to be no greater than the allowable charging power of the battery and no greater than the actual power of the drive motor of the target device.

[0089] In one embodiment, the step of “limiting the power generated by the engine in the power generation state according to the allowed charging power and / or actual power of the battery of the target device” may include:

[0090] determining a limiting condition for the power generation of the engine according to the battery allowed charging power and / or the actual power;

[0091] The power generation power of the engine in the power generation state is limited based on the limiting condition.

[0092] For example, based on the battery's allowable charging power and / or actual power, the limiting conditions for the engine's generated power may be that the generated power is not greater than the battery's allowable charging power, and / or the generated power is not greater than the actual power of the target device's drive motor.

[0093] Optionally, the engine power generation power may be limited based on Min (the sum of the allowable charging power of the power battery and the actual power (including positive and negative) of the drive motor, or the capacity power of the generator). That is, in one embodiment, the step of "determining the limiting condition for the engine power generation power based on the allowable charging power of the battery and / or the actual power" may include:

[0094] Determining the sum of the allowed charging power of the battery and the actual power;

[0095] A restriction condition on the generated power of the engine is determined according to the capable power of the generator of the target device and the sum of the powers.

[0096] In one embodiment, the step of “limiting the power generation of the engine in the power generation state based on the limiting condition” includes:

[0097] determining a candidate power generation capacity of the engine in the power generation state;

[0098] When the candidate generated power does not satisfy the constraint condition, the candidate generated power is adjusted to obtain a generated power that satisfies the constraint condition.

[0099] In one embodiment, the candidate power generation power is determined according to the current battery power of the target device, and the engine is in a power generation state to charge the battery.

[0100] For example, the restriction condition may be that the generated power should not exceed the sum of the allowable charging power limit of the power battery and the actual power of the drive motor, nor should it exceed the generator capacity power. If it exceeds, Min (the sum of the allowable charging power of the power battery and the actual power of the drive motor, the generator capacity power) is used as the generated power of the engine.

[0101] In one embodiment, the process of resuming power generation of the engine can be as follows: Figure 2 As shown, if the sum of the battery's allowable charging power and the actual drive motor power (negative when the drive motor is braking, positive when it is driving) exceeds a set threshold, the engine is controlled to stop generating power. If the engine has braking feedback and low-speed driving requirements, the power generation state is maintained. If not, the system determines whether the engine has no braking feedback and whether there is a need for acceleration or braking. If so, the system exits the maintained power generation state and resumes power generation. Otherwise, power generation is stopped.

[0102] If the sum of the battery's allowable charging power and the drive motor's actual power is not greater than the set threshold, determine whether it is necessary to maintain the state of stopped power generation. If so, the engine stops generating power. If not, determine whether it is currently in the state of stopped power generation. If it is currently in the state of stopped power generation, determine whether the sum of the battery's allowable charging power and the drive motor's actual power is always greater than the set threshold within the specified time. If so, resume power generation and limit the engine's power generation power.

[0103] If the power generation is not currently stopped, the power generation capacity of the engine is limited.

[0104] When there is no braking feedback from the engine and there is a need to accelerate or brake to a stop, power generation is resumed, otherwise power generation is stopped.

[0105] For example, a vehicle is used as the target device for further explanation. To solve the problem of torque variation caused by energy recovery at low vehicle speeds, which results in frequent engine forward and backward power generation and engine torque fluctuations affecting the driving experience, an engine control method and device are provided. The details are as follows:

[0106] The system obtains information such as the battery's allowable charging power, the actual drive motor power, the braking status, and the vehicle speed. When the vehicle is operating in series power generation, the engine's power generation is limited based on the battery's allowable charging power and the drive motor's actual power. If the battery's allowable charging power limit is less than or close to the drive motor's regenerative power, the engine is controlled to stop generating power. For example, at low temperatures, the battery's allowable charging power is low. When the accelerator is released, the energy regenerative power provided by the feedback is sufficient to charge the battery, so the engine is controlled to stop charging.

[0107] After the engine stops generating electricity, it enters the no-load state and runs at the lowest stable speed. At this time, the driver's driving intention type is detected: just release the accelerator and coast, and resume power generation after the power battery's allowed charging power limit exceeds the drive motor's recovery power. For example: just release the accelerator pedal, and when the vehicle speed is less than a certain set threshold S1, no coasting energy recovery is performed, and power generation is resumed at this time.

[0108] Release the accelerator and simultaneously apply the brake pedal. After the vehicle speed drops to the set speed S1, the system continues to identify this operating condition: With the brake pedal applied, the vehicle speed drops to S2 for a duration of T1. This indicates that the driver is requesting a rapid deceleration. To prevent impacting driving comfort, the regenerative braking torque is reduced, and power generation resumes after the power battery's allowable charging power limit exceeds the drive motor's regenerative power. If the brake pedal is applied, but the vehicle speed remains stable within a certain range for a long time, and the driver is not detected as applying the brakes for an extended period, re-applying the accelerator, or releasing the accelerator for an extended period, the system is deemed to be requesting the vehicle speed to remain within this range. In this case, power generation remains stopped even after the power battery's allowable charging power limit exceeds the drive motor's regenerative power, preventing fluctuations in engine torque and ensuring a smoother driving experience. When the brake pedal is released and the accelerator is pressed at the same time, it is assumed that the driver needs to leave the low-speed operating condition. Power generation will resume after the power battery's allowable charging power limit exceeds the drive motor's recovery power. If the driver needs to brake suddenly to stop, brake energy recovery will not be performed after the vehicle speed falls below a certain set threshold S2. At this time, if the power battery's allowable charging power limit exceeds the drive motor's recovery power, power generation can be resumed, and the appropriate power generation power is selected based on the current battery SOC. Energy recovery: When the accelerator pedal is released or the brake pedal is pressed during normal driving, energy recovery torque will be sent to the drive motor to charge the battery according to the vehicle's deceleration requirements. This is divided into coasting energy recovery and braking energy recovery.

[0109] For example, if the driver frequently releases the brake pedal and needs to make a U-turn or other maneuver at a lower speed, if the power battery's allowable charging power limit exceeds the drive motor's recovery power, the power generation will remain stopped and can be resumed when the driver needs to brake or accelerate. If the driver releases the brake pedal and steps on the accelerator to accelerate, the power generation can be resumed if the power battery's allowable charging power limit exceeds the drive motor's recovery power.

[0110] In one embodiment, the present application also provides an engine control system, such as Figure 3 As shown, the engine control system includes: an information acquisition module, a feedback recognition module, a vehicle mode recognition module and a power generation control module. Specifically:

[0111] Information acquisition module: real-time acquisition of the vehicle's drive motor speed, drive motor torque, vehicle speed, brake pedal status, accelerator pedal status and power generation control module.

[0112] Regenerative Recognition Module: Coasting regenerative braking begins when the accelerator pedal is released and braking regenerative braking begins when the brake pedal is depressed. Coasting regenerative braking begins when the vehicle speed falls below a certain threshold (S1), and braking regenerative braking begins when the vehicle speed falls below a certain threshold (S2).

[0113] Vehicle mode recognition module: identifies the working mode of the entire vehicle.

[0114] Power Generation Control Module: This module controls the vehicle's power generation status and is only used during series power generation. In series power generation, after the engine warms up, series power generation begins. During this time, the engine's power is primarily used to drive the vehicle, with the remainder used to charge the battery. Therefore, the power generated should not exceed the sum of the battery's allowable charging power limit and the actual power of the drive motor. When feedback is applied, if the motor's feedback is sufficient to charge the battery, the engine stops charging.

[0115] From the above, it can be seen that the embodiment of the present application controls the working state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the recovery power of the drive motor of the target device, so that the engine runs at a stable speed, which can reduce the shaking and stalling of the target device, improve the user experience of the target device and enhance the safety.

[0116] In order to facilitate better implementation of the engine control method provided in the embodiment of the present application, an engine control device is also provided in one embodiment. The meanings of the terms herein are the same as those in the above engine control method, and the specific implementation details can be referred to the description in the method embodiment.

[0117] The engine control device can be integrated in the vehicle, such as Figure 4As shown, the engine control device may include: a control unit 301, specifically as follows:

[0118] The control unit 301 is configured to control the operating state of the engine of the target device according to the allowed charging power of the battery of the target device and / or the recovery power of the driving motor of the target device, so that the engine operates at a stable speed.

[0119] In one embodiment, the control unit 301 may also be configured to:

[0120] When the target device is in a target operating condition, the operating state of the engine of the target device is controlled so that the engine operates at a stable speed.

[0121] In one embodiment, the target operating condition includes a series power generation condition.

[0122] In one embodiment, the control unit 301 may also be configured to:

[0123] When the battery's allowable charging power and the recovery power satisfy a preset relationship, the engine is controlled to be in a power generation stop state.

[0124] In one embodiment, the control unit 301 may also be configured to:

[0125] When the engine is in a stopped power generation state, the operating state of the engine of the target device is controlled according to the driving state of the target device, the battery allowable charging power and / or the regenerative power.

[0126] In one embodiment, the control unit 301 may also be configured to:

[0127] When the driving state includes a coasting state, a deceleration state, or an acceleration state, and the battery's allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to be in a power generation state.

[0128] In one embodiment, the control unit 301 may also be configured to:

[0129] When the accelerator pedal depth of the target device meets a first preset condition, the duration of the increase in the brake pedal depth meets a second preset condition, and the driving speed of the target device meets a third preset condition, it is determined that the target device is in the deceleration state.

[0130] In one embodiment, the control unit 301 may also be configured to:

[0131] When the driving state includes a stable driving state and the battery allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to remain in a power generation stop state.

[0132] In one embodiment, the control unit 301 may also be configured to:

[0133] When the change in the accelerator pedal depth of the target device meets the fourth preset condition, the change in the brake pedal depth meets the fifth preset condition, and / or the driving speed of the target device meets the sixth preset condition, it is determined that the target device is in the stable driving state.

[0134] In one embodiment, the engine control device may further include:

[0135] A limiting unit is configured to limit the power generated by the engine in a power generation state according to the allowed charging power of the battery of the target device and / or the actual power of the driving motor of the target device.

[0136] In one embodiment, the limiting unit may also be used to:

[0137] determining a limiting condition for the power generation of the engine according to the battery allowed charging power and / or the actual power;

[0138] The power generation power of the engine in the power generation state is limited based on the limiting condition.

[0139] In one embodiment, the limiting unit may also be used to:

[0140] determining a candidate power generation capacity of the engine in the power generation state;

[0141] When the candidate generated power does not satisfy the constraint condition, the candidate generated power is adjusted to obtain a generated power that satisfies the constraint condition.

[0142] In one embodiment, the candidate power generation power is determined according to the current battery power of the target device, and the engine is in a power generation state to charge the battery.

[0143] In one embodiment, the limiting unit may also be used to:

[0144] Determining the sum of the allowed charging power of the battery and the actual power;

[0145] A restriction condition on the generated power of the engine is determined according to the capable power of the generator of the target device and the sum of the powers.

[0146] In one embodiment, the target device comprises a vehicle.

[0147] From the above, it can be seen that the embodiment of the present application controls the working state of the engine of the target device through the control unit 301 according to the charging power allowed by the battery of the target device and / or the recovery power of the drive motor of the target device, so that the engine runs at a stable speed, which can reduce the jitter and stall of the target device, improve the user experience of the target device and enhance the safety.

[0148] The present application also provides a controller, such as Figure 5 , which shows a schematic diagram of the structure of the controller involved in the embodiment of the present application, specifically:

[0149] The controller may include one or more processors 1001 of processing cores, one or more computer-readable storage media memories 1002, a power supply 1003, an input unit 1004 and other components. Those skilled in the art will appreciate that Figure 5 The controller structure shown in the figure does not constitute a limitation on the controller, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0150] Processor 1001 is the controller's control center, connecting all components of the controller using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 1002 and accessing data stored in memory 1002, it performs various controller functions and processes data, thereby providing overall monitoring of the controller. Optionally, processor 1001 may include one or more processing cores; preferably, processor 1001 may integrate an application processor and a modem processor, with the application processor primarily processing the operating system, user interface, and computer programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 1001.

[0151] Memory 1002 can be used to store software programs and modules. Processor 1001 executes various functional applications and data processing by running the software programs and modules stored in memory 1002. Memory 1002 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and computer programs required for at least one function (such as sound playback or image playback); the data storage area may store data generated based on the use of the controller. Furthermore, memory 1002 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory 1002 may also include a memory controller to provide processor 1001 with access to memory 1002.

[0152] The controller also includes a power supply 1003 for supplying power to various components. Preferably, the power supply 1003 can be logically connected to the processor 1001 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The power supply 1003 can also include one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and other arbitrary components.

[0153] The controller may further include an input unit 1004, which may be configured to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0154] Although not shown, the controller may further include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 1001 in the controller will load the executable files corresponding to one or more computer program processes into the memory 1002 according to the following instructions, and the processor 1001 will run the computer programs stored in the memory 1002 to implement various functions as follows:

[0155] According to the allowed charging power of the battery of the target device and / or the recovery power of the driving motor of the target device, the working state of the engine of the target device is controlled so that the engine operates at a stable speed.

[0156] The specific implementation of the above operations can be found in the previous embodiments and will not be described in detail here.

[0157] From the above, it can be seen that in the embodiment of the present application, the working state of the engine of the target device is controlled according to the charging power allowed by the battery of the target device and / or the recovery power of the drive motor of the target device, so that the engine runs at a stable speed, which can reduce the shaking and stalling of the target device, improve the user experience of the target device and enhance the safety.

[0158] According to one aspect of the present application, a vehicle is provided, including a controller, etc., which can execute the engine control methods provided in various optional implementations of the above embodiments via the controller. The vehicle can be a gasoline vehicle, a plug-in hybrid vehicle, or a new energy vehicle, etc., which is not specifically limited in this application.

[0159] According to one aspect of the present application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a vehicle reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the vehicle to perform the methods provided in various optional implementations of the aforementioned embodiments.

[0160] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be accomplished by a computer program, or by controlling related hardware through a computer program. The computer program may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0161] To this end, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. The computer program can be loaded by a processor to execute any engine control method provided in the embodiment of the present application.

[0162] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0163] The computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0164] Since the computer program stored in the computer-readable storage medium can execute any engine control method provided in the embodiments of the present application, the beneficial effects that can be achieved by any engine control method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0165] The above is a detailed introduction to an engine control method, device, vehicle and computer-readable storage medium provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. An engine control method, characterized in that: include: Based on the driving state of the target device, the battery's allowable charging power and / or the recovery power of the target device's drive motor, and a preset relationship, the operating state of the target device's engine is controlled so that the engine runs at a stable speed; wherein the engine's operating state includes a stopped power generation state and a power generation state, and the preset relationship is used to indicate the relationship between the battery's allowable charging power and the recovery power.

2. The method according to claim 1, characterized in that The method further comprises: When the target device is in a target operating condition, the operating state of the engine of the target device is controlled so that the engine operates at a stable speed.

3. The method according to claim 2, characterized in that The target operating condition includes a series power generation operating condition.

4. The method according to claim 1, wherein The controlling of the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery and / or the recovery power of the drive motor of the target device, and a preset relationship includes: When the battery's allowable charging power and the recovery power satisfy a preset relationship, the engine is controlled to be in a power generation stop state.

5. The method according to claim 1, wherein The controlling of the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery and / or the recovery power of the drive motor of the target device, and a preset relationship includes: When the engine is in a stopped power generation state, the operating state of the engine of the target device is controlled according to the driving state of the target device, the battery allowable charging power and / or the regenerative power.

6. The method according to claim 5, characterized in that The controlling of the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery and / or the regenerative power includes: When the driving state includes a coasting state, a deceleration state, or an acceleration state, and the battery's allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to be in a power generation state.

7. The method according to claim 6, characterized in that The method further comprises: When the accelerator pedal depth of the target device meets a first preset condition, the duration of the increase in the brake pedal depth meets a second preset condition, and the driving speed of the target device meets a third preset condition, it is determined that the target device is in the deceleration state.

8. The method according to claim 5, characterized in that The controlling of the operating state of the engine of the target device according to the driving state of the target device, the allowable charging power of the battery and / or the regenerative power includes: When the driving state includes a stable driving state and the battery allowable charging power and the recovery power do not satisfy a preset relationship, the engine is controlled to remain in a power generation stop state.

9. The method according to claim 8, characterized in that The method further comprises: When the change in the accelerator pedal depth of the target device meets the fourth preset condition, the change in the brake pedal depth meets the fifth preset condition, and / or the driving speed of the target device meets the sixth preset condition, it is determined that the target device is in the stable driving state.

10. The method according to any one of claims 1 to 9, characterized in that The method further comprises: The power generated by the engine in the power generation state is limited according to the allowed charging power of the battery of the target device and / or the actual power of the driving motor of the target device.

11. The method according to claim 10, characterized in that The limiting the power generation power of the engine in the power generation state according to the allowed charging power of the battery of the target device and / or the actual power of the drive motor of the target device includes: determining a limiting condition for the power generation of the engine according to the battery allowed charging power and / or the actual power; The power generation power of the engine in the power generation state is limited based on the limiting condition.

12. The method according to claim 11, characterized in that The limiting the power generation of the engine in the power generation state based on the limiting condition includes: determining a candidate power generation capacity of the engine in the power generation state; When the candidate generated power does not satisfy the constraint condition, the candidate generated power is adjusted to obtain a generated power that satisfies the constraint condition.

13. The method according to claim 12, characterized in that The candidate power generation power is determined according to the current battery power of the target device, and the battery is charged when the engine is in the power generation state.

14. The method according to claim 11, characterized in that The determining of the limiting condition for the power generation of the engine according to the allowed charging power of the battery and / or the actual power includes: Determining the sum of the allowed charging power of the battery and the actual power; A restriction condition on the generated power of the engine is determined according to the capable power of the generator of the target device and the sum of the powers.

15. The method according to any one of claims 1 to 9, characterized in that The target device includes a vehicle.

16. A controller, characterized in that: It comprises a memory and a processor; the memory stores a computer program, and the processor is used to run the computer program in the memory to execute the engine control method according to any one of claims 1 to 15.

17. A vehicle, characterized in that: Including the controller according to claim 16; the vehicle executes the engine control method according to any one of claims 1 to 15 through the controller.

18. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program, and the computer program is loaded by a processor to execute the engine control method according to any one of claims 1 to 15.

19. A computer program product, characterized in that The method comprises a computer program or instructions, wherein the computer program or instructions are loaded by a processor to execute the engine control method according to any one of claims 1 to 15.

Images