Engine control method, controller, vehicle, medium and product

Abstract

The invention discloses an engine control method, a controller, a vehicle, a medium and a product, the working state of an engine of target equipment is controlled according to the allowable charging power of a battery of the target equipment and / or the recovery power of a driving motor of the target equipment, so that the engine operates at a stable rotating speed, and the working efficiency of the engine is improved. Jitter and pause of the target equipment can be reduced, the use experience of the target equipment is improved, and the safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly 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] As an important component of the target device, the operation of the engine will directly affect the operation of the device. If the engine speed fluctuates frequently, it will cause the target device to shake and jerk, reducing the use experience and safety of the target device. Summary of the Invention

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

[0004] To achieve the above object, according to the first aspect of the present application, an engine control method is provided, including: Controlling the working state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, so that the engine operates at a stable speed.

[0005] In one embodiment, the method further includes: When the target device is in a target working condition, controlling the working state of the engine of the target device so that the engine operates at a stable speed.

[0006] In one embodiment, the target working condition includes a series power generation working condition.

[0007] In one embodiment, the controlling the working state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device includes: When the battery allowable charging power and the recovery power satisfy a preset relationship, controlling the engine to be in a stopped power generation state.

[0008] In one embodiment, the controlling the working state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device includes: When the engine is in a stopped power generation state, controlling the working state of the engine of the target device according to the driving state of the target device, the battery allowable charging power, and / or the recovery power.

[0009] In one embodiment, controlling the operating state of the engine of the target device according to the driving state of the target device, the battery allowable charging power, and / or the recovery power includes: When the driving state includes a coasting state, a decelerating state, or an accelerating state, and the battery allowable charging power and the recovery power do not satisfy a preset relationship, controlling the engine to be in a power generation state.

[0010] In one embodiment, the method further includes: When the depth of the accelerator pedal of the target device satisfies a first preset condition, the duration of the increase in the depth of the brake pedal satisfies a second preset condition, and the driving speed of the target device satisfies a third preset condition, determining that the target device is in the decelerating state.

[0011] In one embodiment, controlling the operating state of the engine of the target device according to the driving state of the target device, the battery allowable charging power, and / or the recovery power includes: When the driving state includes a steady driving state, and the battery allowable charging power and the recovery power do not satisfy a preset relationship, controlling the engine to remain in a stopped power generation state.

[0012] In one embodiment, the method further includes: When the change in the depth of the accelerator pedal of the target device satisfies a fourth preset condition, the change in the depth of the brake pedal satisfies a fifth preset condition, and / or the driving speed of the target device satisfies a sixth preset condition, determining that the target device is in the steady driving state.

[0013] In one embodiment, the method further includes: Limiting the power generation power of the engine in the power generation state according to the battery allowable charging power of the target device and / or the actual power of the drive motor of the target device.

[0014] In one embodiment, limiting the power generation power of the engine in the power generation state according to the battery allowable charging power 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 power of the engine according to the battery allowable charging power and / or the actual power; Limiting the power generation power of the engine in the power generation state based on the limiting condition.

[0015] In one embodiment, limiting the power generation power of the engine in the power generation state based on the limiting condition includes: Determine the candidate power generation power of the engine in the power generation state; In the case where the candidate power generation power does not meet the limit condition, adjust the candidate power generation power to obtain the power generation power that meets the limit condition.

[0016] In one embodiment, 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.

[0017] In one embodiment, determining the limit condition for the power generation power of the engine according to the battery allowable charging power and / or the actual power includes: Determine the sum of the battery allowable charging power and the actual power; According to the capacity power of the generator of the target device and the sum of the powers, determine the limit condition for the power generation power of the engine.

[0018] In one embodiment, the target device includes a vehicle.

[0019] According to a second aspect of the present application, there is provided an engine control device, including: A control unit for controlling the working state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, so that the engine operates at a stable speed.

[0020] According to a third aspect of the present application, there is provided a controller, including 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 one of the engine control methods provided by the embodiments of the present application.

[0021] According to a fourth aspect of the present application, there is provided a vehicle, including a controller; the vehicle executes any one of the engine control methods provided by the embodiments of the present application through the controller.

[0022] According to a fifth aspect of the present application, there is provided a computer-readable storage medium, which is used to store a computer program, and the computer program is loaded by a processor to execute any one of the engine control methods provided by the embodiments of the present application.

[0023] According to a sixth aspect of the present application, there is provided a computer program product, which includes a computer program or instruction, and the computer program or instruction is loaded by a processor to execute any one of the engine control methods provided by the embodiments of the present application.

[0024] In the embodiments of the present application, by controlling the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, the engine can operate at a stable speed, which can reduce the jitter and jerks of the target device, improve the user experience of the target device, and enhance safety. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a flowchart of the engine control method provided by the embodiments of the present application; Figure 2 is another schematic flowchart of the engine control method provided by the embodiments of the present application; Figure 3 is a schematic diagram of the engine control system provided by the embodiments of the present application; Figure 4 is a schematic diagram of the engine control device provided by the embodiments of the present application; Figure 5 is a schematic diagram of the structure of the vehicle provided by the embodiments of the present application. Detailed Embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0028] The embodiments of the present application provide an engine control method, device, vehicle, and computer-readable storage medium. The engine control device can be integrated in the vehicle.

[0029] The following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0030] This embodiment will be described from the perspective of the engine control device, which can be specifically integrated in the vehicle.

[0031] An engine control method provided by the embodiments of the present application, as Figure 1 shown, the specific process of the engine control method can be as follows: 101. Control the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, so that the engine operates at a stable speed.

[0032] In one embodiment, the target device includes a vehicle. Optionally, the target device may also be other vehicles such as ships and airplanes, or other devices other than vehicles.

[0033] In one embodiment, the operating state of the engine of the target device can be controlled when the target device is in a target operating condition, so that the engine operates at a stable speed.

[0034] In one embodiment, the target operating condition includes a series power generation operating condition. When the target device is a vehicle, the engine of the vehicle is in a starting state under the series power generation operating condition, and the battery is charged by the generator, and the drive motor is used as the power source of the whole vehicle to drive the whole vehicle to run. The target operating condition may also be other operating conditions other than the series power generation operating condition, such as a parallel power generation operating condition or a full load operating condition, etc.

[0035] In one embodiment, the step of "controlling the operating state of the engine of the target device" may include: Control the operating state of the engine of the target device according to the device association information of the target device.

[0036] Among them, the device association information may be information related to the operation of the device. For example, the device association information may include the battery allowable charging power, recovery power, accelerator pedal depth, brake pedal depth, driving speed, driving state, etc. of the target device, and is specifically set flexibly according to the target device of the specific application, and is not limited here. Among them, the recovery power may be the absolute value of the actual power of the drive motor during braking. When the drive motor brakes, the actual power is negative, and when the drive motor drives, the actual power is positive.

[0037] In one embodiment, the device association information includes the battery allowable charging power and / or recovery power 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: Control the operating state of the engine of the target device according to the battery allowable charging power and recovery power of the target device.

[0038] Among them, the battery allowable charging power may refer to the maximum charging power that the battery can accept on the premise of safe and effective charging.

[0039] The recovered power, also known as the regenerative braking power, can refer to the power that, during the deceleration and braking process of the target device, the operating mode of the drive motor changes, converting the kinetic energy of the vehicle into electrical energy and feeding it back into the battery for storage.

[0040] For example, when the recovered power of the drive motor meets certain conditions (such as being less than a preset recovered power), the operating state of the engine of the target device can be controlled, for example, controlling the engine to generate electricity. Optionally, when the battery allowable charging power meets certain conditions (such as being less than a preset charging power), the operating state of the engine of the target device can be controlled, for example, controlling the engine to stop generating electricity. Optionally, when the recovered power of the drive motor meets certain conditions (such as being less than a preset recovered power) and the battery allowable charging power meets certain conditions (such as being greater than a preset charging power), the operating state of the engine of the target device can be controlled, for example, controlling the engine to generate electricity.

[0041] In one embodiment, the step of "controlling the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovered power of the drive motor of the target device" may include: When the battery allowable charging power and the recovered power meet a preset relationship, controlling the engine to be in a state of stopping power generation.

[0042] The preset relationship can be that the battery allowable charging power is less than the recovered power, and / or the battery allowable charging power approaches the recovered power.

[0043] Optionally, when the battery allowable charging power and the recovered power do not meet the preset relationship, the engine can be controlled to be in a power generation state. Exemplarily, when the battery allowable charging power is greater than the recovered power, and / or the difference between the battery allowable charging power and the recovered power is greater than a preset threshold, the engine is controlled to be in a power generation state.

[0044] In one embodiment, the device association information further includes a driving state. The step of "controlling the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovered power of the drive motor of the target device" may include: When the engine is in a state of stopping power generation, controlling the operating state of the engine of the target device according to the driving state of the target device, the battery allowable charging power and / or the recovered power.

[0045] When the engine is in the 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 the recovery power. For example, the engine is maintained in the stopped power generation state or switched to the power generation state.

[0046] Exemplarily, in the coasting state, deceleration state, acceleration state, or steady driving state, the operating state of the engine of the target device can be controlled according to the driving state of the target device, the battery allowable charging power, and / or the recovery power.

[0047] 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 battery allowable charging power, and / or the recovery power" may include: When the driving state includes the coasting state, deceleration state, or acceleration state, and the battery allowable charging power and the recovery power do not satisfy the preset relationship, the engine is controlled to be in the power generation state.

[0048] Among them, the coasting state refers to the state in which the target device continues to operate by its own inertia. For example, for a vehicle, the coasting state may refer to the state in which during the vehicle's driving process, the driver releases the accelerator pedal (throttle) and no longer actively provides power to the vehicle, and the vehicle continues to move forward by its own inertia.

[0049] The deceleration state may refer to the vehicle being in deceleration or the driver wanting to control the vehicle to decelerate. Whether the vehicle is in the deceleration state can be determined by the following conditions: When the depth of the throttle pedal of the target device satisfies the first preset condition, the duration of the increase in the depth of the brake pedal satisfies the second preset condition, and the driving speed of the target device satisfies the third preset condition, it is determined that the target device is in the deceleration state.

[0050] Exemplarily, for a vehicle, the vehicle's throttle can be released, the brake pedal can be depressed, and the vehicle speed satisfies the third preset condition (for example, drops to S2) and the duration reaches T1. At this time, it is considered that the driver demands the vehicle to decelerate sharply, that is, it is determined that the vehicle is in the deceleration state.

[0051] The acceleration state can be determined when the driver releases the brake pedal and steps on the throttle to demand acceleration.

[0052] In the deceleration state, control the engine to resume power generation after the battery allowable charging power limit exceeds the recovery power of the drive motor to prevent the braking regeneration torque from weakening.

[0053] When the target device is in a coasting state, a decelerating state, or an accelerating state, and when the battery's allowable charging power and the recuperation power satisfy a preset relationship, control the engine to be in a power generation state. For example, when the battery's allowable charging power exceeds the recuperation power and satisfies the preset relationship, control the engine to be in a power generation state.

[0054] 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 battery's allowable charging power, and / or the recuperation power" may include: When the driving state includes a steady driving state, and the battery's allowable charging power and the recuperation power do not satisfy the preset relationship, control the engine to remain in a stopped power generation state. This can avoid fluctuations in engine torque and make the operation process of the target device smoother.

[0055] Among them, the steady driving state may refer to the target device driving at a steady speed. The determination of whether the target device is in a steady driving state can be based on the following conditions: When the change in the depth of the throttle pedal of the target device satisfies a fourth preset condition, the change in the depth of the brake pedal satisfies a fifth preset condition, and / or the driving speed of the target device satisfies a sixth preset condition, it is determined that the target device is in the steady driving state.

[0056] Exemplarily, for a vehicle, when the brake pedal is depressed, the vehicle speed is greater than S2, and the vehicle speed is stably within a certain range for a long time (i.e., the driving speed of the target device satisfies the sixth preset condition), and at the same time, it is not recognized that the driver depresses the brake for a long time (i.e., the change in the depth of the brake pedal satisfies the fifth preset condition) or re-depresses the accelerator or releases the accelerator for a long time (i.e., the change in the depth of the throttle pedal satisfies the fourth preset condition), it is considered at this time that the driver demands to control the vehicle speed within this range, that is, it is determined that the target device is in a steady driving state.

[0057] In one embodiment, the engine control method provided by the embodiments of the present application may further include: Limit the power generation power of the engine in the power generation state according to the battery's allowable charging power of the target device and / or the actual power of the drive motor of the target device.

[0058] Exemplarily, the power generation power of the engine in the power generation state can be controlled not to be greater than the battery's allowable charging power; optionally, the power generation power of the engine in the power generation state can be controlled not to be 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 not to be greater than the battery's allowable charging power and not to be greater than the actual power of the drive motor of the target device.

[0059] In one embodiment, the step of "limiting the power generation power of the engine in the power generation state according to the battery allowable charging power and / or the actual power of the target device" may include: Determine the limiting condition for the power generation power of the engine according to the battery allowable charging power and / or the actual power; Limit the power generation power of the engine in the power generation state based on the limiting condition.

[0060] For example, the limiting condition for the power generation power of the engine determined according to the battery allowable charging power and / or the actual power may be that the power generation power is not greater than the battery allowable charging power, and / or the power generation power is not greater than the actual power of the drive motor of the target device.

[0061] Optionally, the engine power generation can also be limited according to Min (the sum of the battery allowable charging power and the drive motor actual power (including positive and negative), and the generator capacity power). That is, in one embodiment, the step of "determining the limiting condition for the power generation power of the engine according to the battery allowable charging power and / or the actual power" may include: Determine the sum of the battery allowable charging power and the actual power; Determine the limiting condition for the power generation power of the engine according to the generator capacity power of the target device and the sum of the powers.

[0062] In one embodiment, the step of "limiting the power generation power of the engine in the power generation state based on the limiting condition" includes: Determine the candidate power generation power of the engine in the power generation state; In the case where the candidate power generation power does not meet the limiting condition, adjust the candidate power generation power to obtain the power generation power that meets the limiting condition.

[0063] In one embodiment, the candidate power generation power is determined according to the current battery power of the target device, and the engine charges the battery when in the power generation state.

[0064] Exemplarily, the limiting condition may be that the power generation power should not exceed the sum of the battery allowable charging power limit value and the drive motor actual power, nor exceed the generator capacity power. If it exceeds, Min (the sum of the battery allowable charging power and the drive motor actual power, and the generator capacity power) is used as the engine power generation power.

[0065] In one embodiment, the process of the engine resuming power generation can be as Figure 2As shown, if the sum of the battery's allowable charging power and the actual power of the drive motor (when the drive motor is braking, the actual power is negative, and when the drive motor is driving, the actual power is positive) is greater than the set threshold, control the engine to stop generating electricity. If there are requirements for braking feedback and low-speed driving of the engine, maintain the state of stopping power generation. If not, determine whether the engine has no braking feedback and has an acceleration requirement or a braking requirement. If so, exit the state of maintaining power generation stoppage and resume power generation. If not, stop generating electricity.

[0066] If the sum of the battery's allowable charging power and the actual power of the drive motor is not greater than the set threshold, determine whether it is necessary to maintain the state of stopping power generation. If so, stop the engine from generating electricity. If not, determine whether the current state is the state of stopping power generation. If the current state is the state of stopping power generation, determine whether the sum of the battery's allowable charging power and the actual power of the drive motor is always greater than the set threshold within a specified duration. If so, resume power generation and limit the power generation power of the engine.

[0067] If the current state is not the state of stopping power generation, limit the power generation power of the engine.

[0068] When the engine has no braking feedback and has an acceleration requirement or a braking requirement, resume power generation. Otherwise, stop generating electricity.

[0069] Exemplarily, taking the target device as a vehicle as an example for further illustration, to solve the problem that the torque change caused by energy recovery at low vehicle speeds results in frequent forward and backward power generation of the engine and the engine torque fluctuation affects the driving experience, an engine control method and device are provided as follows: Obtain the battery's allowable charging power, the actual power of the drive motor, the braking state, the vehicle speed, etc.; when the vehicle working condition is in the series power generation working condition, limit the engine power generation power according to the allowable charging power of the power battery and the actual power of the drive motor; if the allowable charging power limit of the power battery is less than or close to the drive motor recovery power, control the engine to stop generating electricity. For example: at low temperatures, the battery's allowable charging power is small. After releasing the accelerator pedal, the energy recovery power provided by the feedback at this time is sufficient to charge the battery, and control the engine to stop charging.

[0070] After the engine stops generating electricity, the engine enters the no-load state and runs at the lowest stable speed. At this time, detect the type of the driver's driving intention: only release the accelerator pedal and coast. Wait until the allowable charging power limit of the power battery exceeds the drive motor recovery power and then resume power generation. For example: only release the accelerator pedal. 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.

[0071] Release the accelerator pedal and press the brake pedal simultaneously. After the vehicle speed drops to the set speed S1, continuously identify the working condition: when the brake pedal is pressed and the vehicle speed drops to S2 and the duration reaches T1, it is considered that the driver demands an emergency deceleration of the vehicle. To prevent affecting driving comfort, the braking regeneration torque is weakened, and power generation resumes after the allowable charging power limit of the power battery exceeds the recovery power of the drive motor. The brake pedal is pressed, but the vehicle speed remains stable within a certain range for a long time, and at the same time, it is not recognized that the driver steps on the brake for a long time, or steps on the accelerator again, or releases the accelerator for a long time. At this time, it is considered that the driver demands to control the vehicle speed within this range. In this case, the power generation stops even after the allowable charging power limit of the power battery exceeds the recovery power of the drive motor, which can avoid fluctuations in the engine torque and make the entire driving process smoother. The brake pedal is released and the accelerator is pressed simultaneously. At this time, it is considered that the driver demands to get out of the low-speed working condition, and power generation resumes after the allowable charging power limit of the power battery exceeds the recovery power of the drive motor. If the driver demands to step on the brake to make an emergency stop, when the vehicle speed is less than a certain set threshold S2, no braking energy recovery is performed. At this time, if the allowable charging power limit of the power battery exceeds the recovery power of the drive motor, power generation can resume, and an appropriate power generation power is selected according to the current SOC of the battery. Energy recovery: When the accelerator pedal is released or the brake pedal is pressed during normal driving, an energy recovery torque is sent to the drive motor according to the deceleration requirement of the whole vehicle to charge the battery, which is divided into coasting energy recovery and braking energy recovery.

[0072] Exemplarily, the driver frequently releases and presses the brake, demanding to perform operations such as turning around at a relatively low vehicle speed. If the allowable charging power limit of the power battery exceeds the recovery power of the drive motor, a state of power generation stop is maintained, and power generation can resume when the driver demands to stop or accelerate; the driver releases the brake pedal and presses the accelerator to demand acceleration. At this time, if the allowable charging power limit of the power battery exceeds the recovery power of the drive motor, power generation can resume.

[0073] In one embodiment, the present application further provides an engine control system, as Figure 3 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: Information acquisition module: Real-time acquisition of the drive motor speed, drive motor torque, vehicle speed, brake pedal state, accelerator pedal state, and power generation control module of the vehicle.

[0074] Feedback recognition module: After the accelerator pedal is released, coasting energy recovery is entered; when the brake pedal is pressed, braking energy recovery is entered. When the vehicle speed is less than a certain set threshold S1, coasting energy recovery is not performed. When the vehicle speed is less than a certain set threshold S2, braking energy recovery is not performed.

[0075] Vehicle mode recognition module: Identify the working mode of the whole vehicle.

[0076] Power generation control module: This module controls the power generation state of the whole vehicle and makes judgments only under the series power generation condition. When entering the series power generation condition, after warm-up, series power generation is carried out. At this time, the engine power generation mainly meets the driving demand of the whole vehicle, and the rest is used to charge the battery. Therefore, the power generation power should not exceed the sum of the allowable charging power limit of the power battery and the actual power of the drive motor. When entering the feedback mode, if the motor feedback is sufficient to charge the battery, the engine stops charging.

[0077] As can be seen from the above, in the embodiment of the present application, by controlling the working state of the engine of the target device according to the allowable charging power of the battery of the target device and / or the recovery power of the drive motor of the target device, the engine can operate at a stable speed, which can reduce the jitter and jerks of the target device, improve the use experience of the target device and enhance safety.

[0078] To better implement the engine control method provided by the embodiment of the present application, in one embodiment, an engine control device is also provided. The meanings of the nouns are the same as those in the above engine control method, and the specific implementation details can refer to the description in the method embodiment.

[0079] This engine control device can be specifically integrated in a vehicle, such as Figure 4 shown, this engine control device may include: a control unit 301, specifically as follows: The control unit 301 is used to control the working state of the engine of the target device according to the allowable 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 operates at a stable speed.

[0080] In one embodiment, the control unit 301 may also be used for: When the target device is in a target working condition, controlling the working state of the engine of the target device so that the engine operates at a stable speed.

[0081] In one embodiment, the target working condition includes a series power generation condition.

[0082] In one embodiment, the control unit 301 may also be used for: When the allowable charging power of the battery and the recovery power meet a preset relationship, controlling the engine to be in a stopped power generation state.

[0083] In one embodiment, the control unit 301 may also be used for: When the engine is in a power generation stop state, control the operating state of the engine of the target device according to the driving state of the target device, the battery allowable charging power, and / or the recovery power.

[0084] In one embodiment, the control unit 301 may further be configured to: When the driving state includes a coasting state, a decelerating state, or an accelerating state, and the battery allowable charging power and the recovery power do not satisfy a preset relationship, control the engine to be in a power generation state.

[0085] In one embodiment, the control unit 301 may further be configured to: When the throttle pedal depth of the target device satisfies a first preset condition, the duration of the increase in the brake pedal depth satisfies a second preset condition, and the driving speed of the target device satisfies a third preset condition, determine that the target device is in the decelerating state.

[0086] In one embodiment, the control unit 301 may further be configured to: When the driving state includes a steady driving state, and the battery allowable charging power and the recovery power do not satisfy a preset relationship, control the engine to remain in a power generation stop state.

[0087] In one embodiment, the control unit 301 may further be configured to: When the change in the throttle pedal depth of the target device satisfies a fourth preset condition, the change in the brake pedal depth satisfies a fifth preset condition, and / or the driving speed of the target device satisfies a sixth preset condition, determine that the target device is in the steady driving state.

[0088] In one embodiment, the engine control device may further include: A limiting unit, configured to limit the power generation power of the engine in a power generation state according to the battery allowable charging power of the target device and / or the actual power of the drive motor of the target device.

[0089] In one embodiment, the limiting unit may further be configured to: Determine a limiting condition for the power generation power of the engine according to the battery allowable charging power and / or the actual power; Limit the power generation power of the engine in a power generation state based on the limiting condition.

[0090] In one embodiment, the limiting unit may further be configured to: Determine a candidate power generation power of the engine in the power generation state; In the case where the candidate power generation power does not meet the limitation condition, adjust the candidate power generation power to obtain the power generation power that meets the limitation condition.

[0091] In one embodiment, the candidate power generation power is determined according to the current battery power of the target device, and the engine charges the battery when in the power generation state.

[0092] In one embodiment, the limiting unit can also be used for: Determine the sum of the battery allowable charging power and the actual power; According to the capacity power of the generator of the target device and the sum of the powers, determine the limitation condition for the power generation power of the engine.

[0093] In one embodiment, the target device includes a vehicle.

[0094] As can be seen from the above, in the embodiment of the present application, the control unit 301 controls the working state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, so that the engine operates at a stable speed, which can reduce the jitter and jerks of the target device, improve the use experience of the target device and enhance safety.

[0095] The embodiment of the present application also provides a controller, as Figure 5 shown, which shows the structural schematic diagram of the controller involved in the embodiment of the present application. Specifically: The controller may include components such as a processor 1001 with one or more processing cores, a memory 1002 with one or more computer-readable storage media, a power supply 1003, and an input unit 1004. Those skilled in the art can understand that Figure 5 the controller structure shown in does not constitute a limitation on the controller, and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Among them: The processor 1001 is the control center of the controller, connecting various parts of the entire controller through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 1002, and calling data stored in the memory 1002, it executes various functions of the controller and processes data, thereby monitoring the controller as a whole. Optionally, the processor 1001 may include one or more processing cores; preferably, the processor 1001 may integrate an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes the operating system, user interface, and computer programs, etc., and the modulation and demodulation processor mainly processes wireless communication. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 1001.

[0096] The memory 1002 can be used to store software programs and modules. The processor 1001 executes various functional applications and data processing by running the software programs and modules stored in the memory 1002. The memory 1002 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, computer programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the controller, etc. In addition, the memory 1002 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 1002 can also include a memory controller to provide the processor 1001 with access to the memory 1002.

[0097] The controller further includes a power supply 1003 for supplying power to each component. Preferably, the power supply 1003 can be logically connected to the processor 1001 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 1003 can also include any components such as one or more DC or AC power supplies, a recharge system, a power failure detection circuit, a power converter or inverter, and a power status indicator.

[0098] The controller may further include an input unit 1004, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0099] Although not shown, the controller may further include a display unit, etc., which will not be elaborated here. Specifically, in this embodiment, the processor 1001 in the controller will load the executable files corresponding to the processes of one or more computer programs 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: Control the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, so that the engine operates at a stable speed.

[0100] For the specific implementation of each of the above operations, reference can be made to the previous embodiments, which will not be elaborated here.

[0101] As can be seen from the above, in the embodiments of the present application, by controlling the operating state of the engine of the target device according to the battery allowable charging power of the target device and / or the recovery power of the drive motor of the target device, the engine can operate at a stable speed, which can reduce the jitter and jerks of the target device, improve the user experience of the target device and enhance safety.

[0102] According to one aspect of the present application, a vehicle is provided. The vehicle includes a controller and the like. The vehicle can execute the engine control method provided in various optional implementation manners in the above embodiments through the controller. The vehicle can be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present application does not make specific limitations thereto.

[0103] According to one aspect of the present application, a computer program product or a computer program is provided. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the vehicle reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the vehicle executes the methods provided in various optional implementation manners in the above embodiments.

[0104] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by a computer program, or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0105] Therefore, the embodiments of the present application provide a computer-readable storage medium, in which a computer program is stored. The computer program can be loaded by a processor to execute any engine control method provided by the embodiments of the present application.

[0106] For the specific implementation of each of the above operations, reference can be made to the previous embodiments, which will not be elaborated herein.

[0107] Among them, the computer-readable storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), a magnetic disk or an optical disc, etc.

[0108] Since the computer program stored in the computer-readable storage medium can execute any engine control method provided by the embodiments of the present application, the beneficial effects that can be achieved by any engine control method provided by the embodiments of the present application can be realized. For details, reference can be made to the previous embodiments, which will not be elaborated herein.

[0109] The above has introduced in detail an engine control method, device, vehicle, and computer-readable storage medium provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An engine control method, characterized in that: include: 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 runs at a stable speed.

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 condition.

4. The method according to claim 1, characterized in that: The controlling 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 driving motor of the target device includes: When the battery allowable charging power and the recovery power satisfy a preset relationship, the engine is controlled to be in a state of stopping power generation.

5. The method according to claim 1, characterized in that The controlling 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 driving motor of the target device 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 the working 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 includes: When the driving state includes a coasting state, a deceleration state or an acceleration state, and the battery 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 satisfies a first preset condition, the duration of the increase in the brake pedal depth satisfies a second preset condition, and the driving speed of the target device satisfies 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 the working 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 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 satisfies a fourth preset condition, the change in the brake pedal depth satisfies a fifth preset condition, and / or the driving speed of the target device satisfies a 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 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 driving motor of the target device includes: determining a limiting condition for the power generation of the engine according to the allowed charging power of the battery and / or the actual power; The power generation 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 power generation does not satisfy the constraint condition, the candidate power generation is adjusted to obtain a power generation satisfying 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: Determine the sum of the allowable charging power of the battery and the actual power; A restriction condition on the generated power of the engine is determined based on the capacity 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 as claimed in claim 16; the vehicle executes the engine control method as claimed in 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.

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