Engine control method, device, vehicle and computer storage medium

Abstract

The application relates to an engine control method, device, vehicle and computer storage medium, and belongs to the technical field of engines, wherein the engine control method comprises the following steps: acquiring an accelerator state of a vehicle and an operation state of a torque-related component, the torque-related component being a component related to engine output torque; when the operation state of the torque-related component meets preset engine torque control requirements, performing torque control on the output torque of the engine based on the accelerator state; and when the operation state of the torque-related component does not meet the preset engine torque control requirements, closing the torque control on the output torque of the engine. The application not only considers the state of the accelerator, but also considers the torque control requirements of other components of the vehicle on the engine, so that the torque control of the engine is more accurate, the stability of the vehicle under various working conditions is ensured, the driving experience is improved, and fuel consumption is reduced, thereby saving energy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine, in particular to an engine control method and device, vehicle and computer storage medium. BACKGROUND

[0002] Engine torque buffering refers to a control technology for slowly controlling the output torque of an engine to prevent the engine torque from changing too fast.

[0003] The existing engine torque buffering technology only controls the change of the vehicle accelerator, and only reduces the torque change rate when the accelerator is released. However, the torque buffering is still in effect when the driver brakes, resulting in high fuel consumption, fast brake pad wear, and poor driving experience. When other controllers control the engine torque, the torque controlled by the external controller and the torque buffering interfere with each other, resulting in poor driving experience. When the engine torque is buffered during gear shifting, the engine speed is too high, the fuel consumption is high, and the driving experience is poor.

[0004] Therefore, the existing engine torque buffering technology cannot take into account various operating states of the vehicle, resulting in poor driving experience. SUMMARY

[0005] Therefore, it is necessary to provide an engine control method and device, vehicle and computer storage medium to solve the problem that the existing engine torque buffering technology cannot take into account various operating states of the vehicle, resulting in poor driving experience.

[0006] To solve the above problem, the present application provides an engine control method, comprising:

[0007] obtaining the accelerator state of the vehicle and the operating state of the torque-related component, the torque-related component being a component related to the output torque of the engine;

[0008] when the operating state of the torque-related component meets the preset engine torque buffering control requirement, buffering the output torque of the engine based on the accelerator state;

[0009] when the operating state of the torque-related component does not meet the preset engine torque buffering control requirement, closing the torque buffering control of the output torque of the engine.

[0010] In one possible implementation, when the operating state of the torque-related component meets the preset engine torque buffering control requirement, the output torque of the engine is buffered, comprising:

[0011] when the accelerator is depressed and the operating state of the torque-related component meets the preset engine torque buffering control requirement, determining the target output torque of the engine based on the speed and depth at which the accelerator is depressed.

[0012] performing a torque control on the engine until an output torque of the engine reaches the engine target output torque;

[0013] performing a torque control on the engine until an output torque of the engine reaches the engine target output torque;

[0014] In a possible implementation, the torque-related component further comprises a brake component, and the closing the torque control on the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises:

[0015] performing a torque control on the engine until an output torque of the engine reaches the engine target output torque;

[0016] In a possible implementation, when the engine is a manual transmission, the torque-related component further comprises a clutch, and the closing the torque control on the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises:

[0017] performing a torque control on the engine until an output torque of the engine reaches the engine target output torque;

[0018] In a possible implementation, when the engine is an automatic transmission, the method comprises:

[0019] sending the accelerator state and the operating state of the torque-related component to an automatic transmission controller, and controlling the engine based on a control instruction of the automatic transmission controller.

[0020] In a possible implementation, the torque-related component further comprises a retarder, and the closing the torque control on the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises:

[0021] performing a torque control on the engine until an output torque of the engine reaches the engine target output torque;

[0022] In a possible implementation, the torque-related component further comprises a vehicle controller, and the method comprises:

[0023] obtaining a control signal of the vehicle controller, and when the control signal requests to control the output torque of the engine, closing the torque control on the engine and controlling the engine to output a required torque corresponding to the control signal.

[0024] The application further provides an engine control device, comprising:

[0025] a vehicle operating state acquisition module, configured to acquire a throttle state of the vehicle and an operating state of a torque-related component, the torque-related component being a component related to an output torque of the engine;

[0026] a torque control module, configured to perform torque control on the output torque of the engine based on the throttle state when the operating state of the torque-related component meets a preset engine torque control requirement;

[0027] a torque control module, configured to perform torque control on the output torque of the engine based on the throttle state when the operating state of the torque-related component meets a preset engine torque control requirement;

[0028] The application further provides a vehicle, comprising a memory and a processor, wherein,

[0029] the memory is configured to store a program;

[0030] the processor is coupled to the memory and is configured to execute the program stored in the memory to implement the steps in the engine control method according to any one of the above embodiments.

[0031] The application further provides a computer readable storage medium for storing a computer readable program or instruction, which can implement the steps in the engine control method according to any one of the above embodiments when executed by a processor.

[0032] The engine control method provided by the application can acquire the throttle state of the vehicle and the operating state of the torque-related component related to the output torque of the engine, and select torque control or non-torque control on the output torque of the engine according to the throttle state and the operating state of the torque-related component, so as to not only consider the throttle state, but also consider the demand of other components of the vehicle on the engine torque control, so as to control the engine torque more precisely, ensure the stability of the vehicle driving under various conditions, improve the driving experience, reduce fuel consumption and save energy. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0034] Fig. 1 is a flowchart of an engine control method provided by an embodiment of the application;

[0035] Figure 2 A flowchart of an embodiment of S102 provided for the embodiment of the present application is shown in the figure;

[0036] Figure 3 A comparison chart of the slow-torque control of the accelerator pedal provided for the embodiment of the present application is shown in the figure;

[0037] Figure 4 A comparison chart of the slow-torque control of the accelerator pedal provided for the embodiment of the present application is shown in the figure;

[0038] Figure 5 A structure diagram of an engine control device provided for the embodiment of the present application is shown in the figure;

[0039] Figure 6 A structure diagram of a vehicle provided for the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, which form a part of this application. The accompanying drawings and the detailed description provide a complete description of the application and are sufficient for practicing the application. The drawings described are only schematic and are non-limiting.

[0041] In the description of the embodiments of the present application, unless otherwise specified, the meaning of “a plurality of” is two or more. The association relationship of the associated objects is described, which means that there can be three relationships, for example: A and / or B, which can represent the three cases of A alone, A and B together, and B alone.

[0042] The “first”, “second”, and the like described in the embodiments of the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the technical features limited by “first” and “second” can explicitly or implicitly include at least one of the features.

[0043] In this document, the term “embodiment” means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. The skilled person in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0044] One specific embodiment of the present application, as shown in Figure 1 discloses an engine control method, comprising:

[0045] S101, acquiring the accelerator state of the vehicle and the operating state of the torque-related component, the torque-related component being a component related to the engine output torque;

[0046] S102, when the operating state of the torque-related component meets the preset engine torque control requirement, performing torque control on the output torque of the engine based on the throttle state;

[0047] S103, when the operating state of the torque-related component does not meet the preset engine torque control requirement, turning off the torque control on the output torque of the engine.

[0048] In the embodiment of the present application, the engine torque control technology refers to the control technology for controlling the change rate of the output torque of the engine when the required output torque of the engine changes rapidly, so as to ensure that the output torque of the engine changes smoothly. The throttle state refers to the state in which the vehicle throttle is depressed or released. The torque-related component refers to a component other than the throttle that can affect the output torque of the engine, including but not limited to a vehicle brake component, a clutch, a gearbox controller, and other vehicle controllers, etc. When these torque-related components are in different states, different requirements for torque control of the engine are proposed. The present application determines whether to perform torque control on the output torque of the engine by the throttle state and the operating state of each torque-related component.

[0049] In the embodiment of the present application, the preset engine torque control requirement refers to the condition that needs to perform torque control on the output torque of the engine. The specific condition is described in detail later in the present application. When the operating state of the torque-related component meets the preset engine torque control requirement, it indicates that torque control needs to be performed on the output torque of the engine. Then, the output torque of the engine can be controlled according to the throttle state. Specifically, the output torque of the engine can be smoothly increased or decreased according to whether the throttle is depressed or released, so as to ensure the stability of the change of the engine torque.

[0050] In the embodiment of the present application, when the operating state of the torque-related component does not meet the preset engine torque control requirement, it indicates that torque control cannot be performed on the output torque of the engine at this time. Therefore, no matter what state the throttle is in, torque control should not be performed on the output torque of the engine at this time, and the current required torque of the engine should be controlled as quickly as possible to ensure the rapid response of the engine.

[0051] The engine control method provided by the present application acquires the throttle state of the vehicle and the operating state of the torque-related component related to the output torque of the engine, and selects to perform torque control or not to perform torque control on the output torque of the engine according to the throttle state and the operating state of the torque-related component. Not only the throttle state is considered, but also the requirement of other components of the vehicle for engine torque control. The engine torque control is more precise, the stability of the vehicle driving under various conditions is ensured, the driving experience is improved, and the fuel consumption is reduced to save energy.

[0052] As a possible embodiment of the present application, in the embodiment, as shown in Figure 2 When the operating state of the torque-related component meets the preset engine torque control requirement, the output torque of the engine is controlled, including:

[0053] S201, when the accelerator is depressed and the operating state of the torque-related component meets the preset engine torque control requirement, the engine target output torque is determined based on the speed and depth of the accelerator depression;

[0054] S202, the engine is controlled for torque control until the output torque of the engine reaches the engine target output torque;

[0055] S203, when the accelerator is released and the operating state of the torque-related component meets the preset engine torque control requirement, the output torque of the engine is controlled for torque control until the output torque of the engine is 0.

[0056] In the embodiment of the present application, when the accelerator is depressed, especially when the accelerator is rapidly depressed for a large amplitude in a short time, which indicates that the vehicle needs to accelerate rapidly, without using torque control, the output torque of the engine will change sharply, in order to prevent the vehicle from shaking due to the sharp change of the engine torque, the embodiment of the present application controls the output torque of the engine for torque control in combination with the operating state of the torque-related component.

[0057] Specifically, as shown in Figure 3 The output torque of the engine is controlled for torque control and not controlled for torque control when the accelerator is depressed, and the engine target output torque is determined according to the speed and depth of the accelerator depression, wherein the accelerator reaches 100% at 0.1s, which indicates that the output torque of the engine needs to reach 500Nm at 0.1s, at this time the cab is easy to shake and the transmission system has impact noise, therefore the output torque of the engine needs to be controlled for torque control to alleviate the shaking of the cab and the impact noise of the transmission system. As shown in Figure 3 It can be seen that after the engine is controlled for torque control, the output torque of the engine reaches 500Nm at 0.6s, and the change of the engine output torque is overall stable.

[0058] Further, as shown in Figure 4 When the accelerator of the vehicle is released, the accelerator and the output torque of the engine before torque control reach 0 at 0.1s, at this time if torque control is not used, the cab is also easy to shake, therefore the torque control function is added to ensure smoothness, at this time the output torque of the engine can be controlled for torque control to ensure that the output torque of the engine slowly becomes 0 and ensure the stability of driving.

[0059] The embodiment of the present application controls the engine output torque when the accelerator is released to ensure the stability of the vehicle cab.

[0060] As a possible implementation of the present application, in the implementation, the torque-related component further comprises a brake component, when the operating state of the torque-related component does not meet the preset engine torque control requirement, the torque control of the engine is closed, comprising:

[0061] When the brake component is activated, the output torque of the engine is closed based on the brake requirement of the brake component.

[0062] In the embodiment of the present application, the torque-related component further comprises a brake component, the brake component comprises a component acting on the vehicle braking, such as a brake, an anti-lock braking system, an electronic brake system, an emergency brake auxiliary system, etc., when the above brake component is in an activated state, such as the brake is depressed, the anti-lock braking system, the electronic brake system, the emergency brake auxiliary system is started, etc., in order to ensure the safety of the vehicle driving, it is necessary to ensure that the output torque of the engine becomes 0 as soon as possible, therefore the torque control of the engine cannot be performed.

[0063] Further, when the engine is a manual transmission, the torque-related component further comprises a clutch, when the operating state of the torque-related component does not meet the preset engine torque control requirement, the torque control of the engine is closed, comprising:

[0064] When the clutch is in a separated state, the torque output of the engine is closed.

[0065] In the embodiment of the present application, when the engine is a manual transmission engine, the torque-related component further comprises a clutch, in the existing engine torque control technology, when the manual transmission is shifted, the driver generally releases the accelerator and controls the clutch to be separated, at this time the engine continues to output torque, but the engine has no load, the engine speed is easy to overshoot, therefore after the clutch is separated, it is necessary to control the output torque of the engine to be 0 as soon as possible, therefore at this time although the brake is not depressed and the accelerator is in a separated state, the torque control of the engine cannot be performed, but the torque control function of the engine output torque is closed.

[0066] Further, when the engine is an automatic transmission, the method comprises:

[0067] The accelerator state and the operating state of the torque-related component are sent to an automatic transmission controller, and the engine is controlled based on the control instruction of the automatic transmission controller.

[0068] In the embodiment of the present application, when the engine is an automatic transmission, since the automatic transmission engine is provided with an automatic transmission controller, during the starting process, the torque output by the engine is the torque after the torque is slowed down, but the transmission needs faster response of the engine at this time, so when the transmission controls the torque of the engine, the engine cannot slow down the torque, and the torque after the torque is slowed down can not meet the requirement of the transmission, and the same problem exists during the gear shifting, so as long as the transmission puts forward the torque control requirement, the engine cannot slow down the torque. Further, for the automatic transmission engine, the control of the torque output by the engine is completely controlled by the automatic transmission controller.

[0069] As a possible embodiment of the present application, in the embodiment, the torque-related component further comprises a retarder, when the operating state of the torque-related component does not meet the preset engine torque control requirement, the torque control of the engine is closed, comprising:

[0070] When the retarder is in the active state, the torque control of the engine is closed.

[0071] In the embodiment of the present application, for the vehicle provided with the retarder, the torque-related component further comprises the retarder, the automobile retarder is that the excitation coil of the given subassembly is energized by the control circuit to generate a magnetic field, the rotor assembly rotates at high speed with the vehicle transmission part to cut the magnetic lines of force to generate a reverse torque to slow down the vehicle, when the retarder is in the active state, it indicates that the vehicle needs to slow down, and the retarder controls the speed of the vehicle, so at this time the engine should not output torque, and thus the torque control of the engine is not needed, but the output torque of the engine is directly cut off, which is similar to the disengaged state of the clutch.

[0072] Further, the torque-related component further comprises a vehicle controller, and the method comprises:

[0073] The control signal of the vehicle controller is obtained, when the control signal requests to control the output torque of the engine, the torque control of the engine is closed, and the engine outputs the required torque corresponding to the control signal.

[0074] In the embodiment of the present application, there can be other controllers for controlling the torque output of the engine, such as a vehicle speed controller, a brake controller, etc., when these controllers send the torque control signal of the engine, in order to ensure the safety of driving, the output torque of the engine should be controlled based on the control signal, and the torque control function of the engine is closed.

[0075] The embodiment of the present application controls the output torque of the vehicle engine by combining the operating states of multiple torque-related components, controls the output torque of the engine when the torque control is needed, and closes the torque control function of the engine output torque when the torque control is not needed, thereby realizing fine management of the engine torque control, ensuring the stability of the vehicle operation, and saving energy.

[0076] In order to better implement the engine control method in the embodiment of the present application, on the basis of the engine control method, as shown in Figure 5 The embodiment of the present application also provides an engine control device, and the engine control device 500 comprises:

[0077] A vehicle operating state acquisition module 501 is configured to acquire the throttle state of the vehicle and the operating state of the torque-related component, and the torque-related component is a component related to the output torque of the engine.

[0078] A torque control module 502 is configured to control the output torque of the engine based on the throttle state when the operating state of the torque-related component meets the preset engine torque control requirement.

[0079] A non-torque control module 503 is configured to close the torque control of the output torque of the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement.

[0080] The engine control device 500 provided by the above embodiment can realize the technical solutions described in the above engine control method embodiment, and the principles of the specific implementation of the above modules or units can be referred to the corresponding content in the above engine control method embodiment, which will not be described here.

[0081] The engine control device provided by the present application acquires the throttle state of the vehicle and the operating state of the torque-related component related to the output torque of the engine, selects the torque control or non-torque control of the output torque of the engine in combination with the throttle state and the operating state of the torque-related component, considers not only the throttle state but also the torque control requirement of other components of the vehicle, and realizes more fine torque control of the engine, thereby ensuring the stability of the vehicle driving under various conditions, improving the driving experience, reducing fuel consumption, and saving energy.

[0082] As shown in Figure 6 The present application also correspondingly provides a vehicle 600. The vehicle 600 comprises a processor 601, a memory 602, and a display 603. Figure 6 Only part of the components of the vehicle 600 are shown, but it should be understood that all the shown components are not required to be implemented, and more or fewer components can be alternatively implemented.

[0083] The processor 601 may, in some embodiments, be a central processing unit (CPU), a microprocessor, or other data processing chip, for running program codes stored in the memory 602 or processing data, such as the engine control method in the present application.

[0084] In some embodiments, the processor 601 can be a single server or a group of servers. The group of servers can be centralized or distributed. In some embodiments, the processor 601 can be local or remote. In some embodiments, the processor 601 can be implemented on a cloud platform. In some embodiments, the cloud platform can include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination thereof.

[0085] The memory 602 may, in some embodiments, be an internal storage unit of the vehicle 600, such as a hard disk or a memory of the vehicle 600. The memory 602 may, in other embodiments, also be an external storage device of the vehicle 600, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the vehicle 600.

[0086] Further, the memory 602 can include both an internal storage unit and an external storage device of the vehicle 600. The memory 602 is used to store application software installed on the vehicle 600 and various types of data.

[0087] The display 603 may, in some embodiments, be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, etc. The display 603 is used to display information of the vehicle 600 and to display a visualized user interface. The components 601-603 of the vehicle 600 communicate with each other through a system bus.

[0088] In some embodiments, when the processor 601 executes the engine control program in the memory 602, the following steps can be implemented:

[0089] Obtaining an accelerator state of the vehicle and an operating state of a torque-related component, the torque-related component being a component related to an output torque of the engine;

[0090] When the operating state of the torque-related component meets a preset engine torque cushioning control requirement, performing torque cushioning control on the output torque of the engine based on the accelerator state;

[0091] When the operating state of the torque-related component does not meet the preset engine torque cushion control requirement, the output torque cushion control of the engine is closed.

[0092] It should be understood that, in addition to the above functions, the processor 601 can also implement other functions when executing the engine control program in the memory 602, which can be specifically understood in the description of the corresponding method embodiments.

[0093] Correspondingly, the embodiment of the present application also provides a computer readable storage medium, which is used to store computer readable programs or instructions, and the programs or instructions are executed by the processor to realize the steps or functions in the engine control method provided by the above method embodiments.

[0094] Those skilled in the art can understand that all or part of the processes of the above-mentioned embodiments can be completed by a computer program instructing related hardware, and the program can be stored in a computer readable storage medium. The computer readable storage medium is a disk, an optical disk, a read-only memory or a random access memory, etc.

[0095] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An engine control method characterized by, The method comprises the following steps: acquiring an accelerator state of a vehicle and an operating state of a torque-related component, the torque-related component being a component related to an output torque of an engine; when the operating state of the torque-related component meets a preset engine torque control requirement, performing torque control on the output torque of the engine based on the accelerator state; when the operating state of the torque-related component does not meet the preset engine torque control requirement, stopping the torque control on the output torque of the engine; the torque control on the output torque of the engine when the operating state of the torque-related component meets the preset engine torque control requirement comprises: when the accelerator is depressed and the operating state of the torque-related component meets the preset engine torque control requirement, determining an engine target output torque based on a speed and a depth at which the accelerator is depressed; performing torque control on the engine until the output torque of the engine reaches the engine target output torque; when the accelerator is released and the operating state of the torque-related component meets the preset engine torque control requirement, performing torque control on the output torque of the engine until the output torque of the engine is 0.

2. The engine control method according to claim 1, characterized by, the torque-related component further comprises a brake component, and the stopping of the torque control on the output torque of the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises: when the brake component is activated, stopping the output torque of the engine based on a braking requirement of the brake component.

3. The engine control method according to claim 1, characterized by, when the engine is a manual transmission, the torque-related component further comprises a clutch, and the stopping of the torque control on the output torque of the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises: when the clutch is in a disengaged state, stopping the torque output of the engine.

4. The engine control method according to claim 1, characterized by, when the engine is an automatic transmission, the method comprises: sending the accelerator state and the operating state of the torque-related component to an automatic transmission controller, and controlling the engine based on a control instruction of the automatic transmission controller.

5. The engine control method according to claim 1, characterized by, the torque-related component further comprises a retarder, and the stopping of the torque control on the output torque of the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement comprises: when the retarder is in an activated state, stopping the torque control on the output torque of the engine.

6. The engine control method according to claim 1, characterized by, the torque-related component further comprises a vehicle controller, and the method comprises: acquiring a control signal of the vehicle controller, and when the control signal requests to control the output torque of the engine, stopping the torque control on the engine and controlling the engine to output a required torque corresponding to the control signal.

7. An engine control device adapted to the engine control method according to any one of claims 1 to 6, characterized by The method comprises the following steps: a vehicle operating state acquisition module is configured to acquire an accelerator state of a vehicle and an operating state of a torque-related component, the torque-related component being a component related to an output torque of an engine; The torque control module is configured to perform a torque control on the output torque of the engine based on the throttle state when the operating state of the torque-related component meets a preset engine torque control requirement. The non-torque control module is configured to close the torque control on the output torque of the engine when the operating state of the torque-related component does not meet the preset engine torque control requirement.

8. A vehicle characterized by comprising: The engine control device comprises a memory and a processor, The memory is configured to store a program. The processor is coupled to the memory and is configured to execute the program stored in the memory to implement the steps of the engine control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer readable program or instruction is stored in the memory and is executed by the processor to implement the steps of the engine control method according to any one of claims 1 to 6.

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