WO2021197438A1

WO2021197438A1 - Engine start-stop control method and system, and vehicle

Info

Publication number: WO2021197438A1
Application number: PCT/CN2021/084989
Authority: WO
Inventors: 杨雪静; 张峻; 吴迪; 刘寒; 韩松
Original assignee: 长城汽车股份有限公司
Priority date: 2020-04-01
Filing date: 2021-04-01
Publication date: 2021-10-07
Also published as: CN112660097A

Abstract

An engine start-stop control method and system, and a vehicle. The engine start-stop control method comprises: in the case that a smart engine start-stop function is in an activated state, obtaining the number of stop times of an engine within the duration that a vehicle speed is maintained below a preset first vehicle speed threshold value; and when the number of stop times is greater than a preset threshold number of stop times, controlling a vehicle to quit the smart engine start-stop function. The engine start-stop control method avoids manually activating the smart engine start-stop function, thereby improving the user driving experience.

Description

Engine start-stop control method, system and vehicle

Cross-references to related applications

The present disclosure requires the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 202010249810.6 and titled "engine start-stop control method, system and vehicle" on April 1, 2020, the entire content of which is incorporated into the present disclosure by reference middle.

Technical field

The present disclosure relates to the technical field of vehicle engine control, and in particular to an engine start-stop control method, system and vehicle.

Background technique

At this stage, most vehicles have gradually applied the intelligent engine start-stop function, that is, the engine can automatically stop when the vehicle decelerates to stop to reduce fuel consumption and emissions, and the engine can automatically start to output torque to start the vehicle when the driver is recognized to have a starting demand. Driving. The intelligent engine start-stop function can make the engine stop running even when the vehicle is not powered off.

Although the intelligent engine start-stop function can make the engine stop when waiting for a red light, and start when the engine start conditions (depress the accelerator pedal or turn the steering wheel) are met, but as the traffic conditions become more and more complicated, the engine There will be frequent switching of acceleration, deceleration (or even parking). If the smart engine start-stop function is turned on at this time, the engine will frequently start and stop. On the one hand, this will cause damage to the engine, on the other hand, it will also affect the driver's driving experience, and the starting intention will not respond in time. At present, most users will choose to manually turn off the intelligent engine start-stop function under the above circumstances, so that the engine is always running. However, such a solution is relatively time-consuming, and if the intelligent engine start-stop function is to be activated again, the function must be manually activated again, the operation process is relatively cumbersome and the user experience is poor.

Summary of the invention

In view of this, the present disclosure aims to propose an engine start-stop control method to avoid manual activation of the intelligent engine start-stop function and improve the user's driving experience.

In order to achieve the above objective, the technical solution of the present disclosure is achieved as follows:

An engine start-stop control method, the engine start-stop control method includes: in the case that the intelligent engine start-stop function of the vehicle is activated, acquiring the duration of the engine when the vehicle speed is maintained below a preset first vehicle speed threshold When the number of shutdowns is greater than a preset threshold of the number of shutdowns, the vehicle is controlled to exit the intelligent engine start-stop function.

Preferably, after controlling the vehicle to exit the intelligent engine start-stop function, the engine start-stop control method further includes: acquiring the current vehicle speed; and when the current vehicle speed is greater than a preset second vehicle speed threshold , Controlling the vehicle to reactivate the intelligent engine start-stop function, wherein the second vehicle speed threshold is greater than the first vehicle speed threshold.

Preferably, after controlling the vehicle to reactivate the intelligent engine start-stop function, the engine start-stop control method further includes: controlling the engine to be stopped when the vehicle meets one of the following conditions Status: the current vehicle speed is zero; the brake pedal is depressed, and the current vehicle speed is not zero and lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the first vehicle speed threshold; and/or When the vehicle satisfies all the following conditions, the engine is controlled to be in a starting state: the current vehicle speed is higher than or equal to the third vehicle speed threshold; the brake pedal is depressed.

Preferably, the engine start-stop control method further includes: controlling the intelligent engine start-stop function of the vehicle to be maintained in an active state when the number of stops is less than or equal to a preset number of stop thresholds.

Compared with the prior art, the engine start-stop control method and system described in the present disclosure have the following advantages: when the smart engine start-stop function is activated, the number of engine shutdowns is obtained, and the number of shutdowns needs to be maintained at the first vehicle speed. It is recorded during the duration below a vehicle speed threshold; the number of shutdowns reflects the start-stop situation of the engine at low speed, the more the number, the more the number of low-speed start-stops; then, in the present disclosure, the number of shutdowns is greater than When the preset threshold of the number of stops, the vehicle is controlled to exit the intelligent engine start-stop function, so as to avoid the frequent start and stop of the engine under the condition that the intelligent engine start-stop function is activated, which causes the vehicle to start untimely and the power response is slow. Improve the driving experience.

Another object of the present disclosure is to provide an engine start-stop control system to avoid manual activation of the intelligent engine start-stop function and improve the user's driving experience.

An engine start-stop control system, the engine start-stop control system includes: a number of stop acquisition unit, used to obtain the engine at the vehicle speed is maintained at a preset time when the intelligent engine start-stop function of the vehicle is in an active state. A number of shutdowns within a duration below a vehicle speed threshold; and an engine start-stop function control unit for controlling the vehicle to exit the intelligent engine start-stop function when the number of shutdowns is greater than a preset threshold of the number of shutdowns.

Preferably, the engine start-stop control system further includes: a vehicle speed acquisition unit for acquiring the current vehicle speed after the vehicle is controlled to exit the intelligent engine start-stop function; and a function activation unit for When the current vehicle speed is greater than a preset second vehicle speed threshold, the vehicle is controlled to reactivate the intelligent engine start-stop function, wherein the second vehicle speed threshold is greater than the first vehicle speed threshold.

Preferably, the engine start-stop control system further includes: a shutdown control unit configured to control the vehicle to reactivate the intelligent engine start-stop function, and when the vehicle satisfies one of the following conditions, Control the engine to be in a shutdown state: the current vehicle speed is zero; the brake pedal is depressed, and the current vehicle speed is not zero and is lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the first A vehicle speed threshold; and/or a start control unit, configured to control the engine to be in a start state when the vehicle satisfies all the following conditions after reactivating the intelligent engine start-stop function after the control of the vehicle: The current vehicle speed is higher than or equal to the third vehicle speed threshold; the brake pedal is depressed.

Preferably, the engine start-stop function control unit is further configured to control the intelligent engine start-stop function of the vehicle to be maintained in an activated state when the number of stops is less than or equal to a preset number of stop thresholds.

The engine start-stop control system and the foregoing engine start-stop control method have the same advantages over the prior art, and will not be repeated here.

The present disclosure also proposes a vehicle that includes: a vehicle body stability control unit for acquiring vehicle speed; and a vehicle controller for receiving the vehicle speed from the vehicle body stability control unit and executing the aforementioned engine start-stop control Methods.

The present disclosure also aims to provide a machine-readable storage medium having instructions stored on the machine-readable storage medium, and the instructions are used to make a machine execute the aforementioned engine start-stop control method.

The machine-readable storage medium has the same advantages as the foregoing engine start-stop control method over the prior art, and will not be repeated here.

Other features and advantages of the present disclosure will be described in detail in the following specific embodiments.

The above description is only an overview of the technical solutions of the present disclosure. In order to understand the technical means of the present disclosure more clearly, they can be implemented in accordance with the content of the specification, and in order to make the above and other objectives, features and advantages of the present disclosure more obvious and easy to understand. In the following, specific embodiments of the present disclosure are specifically cited.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present disclosure or related technologies, the following will briefly introduce the drawings that need to be used in the description of the embodiments or related technologies. Obviously, the drawings in the following description are of the present invention. For some of the disclosed embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions of the present disclosure are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

Fig. 1 is a flowchart of the engine start-stop control method of embodiment 1;

2 is a flowchart of the engine start-stop control method after the control of the vehicle to exit the intelligent engine start-stop function of Embodiment 1;

3 is a control logic block diagram of the engine start-stop control method of the embodiment 1 after the control of the vehicle to reactivate the intelligent engine start-stop function;

Fig. 4 is a flowchart of an engine start-stop control method of Embodiment 2; and

Fig. 5 is a block diagram of a module of an engine start-stop control system of the third embodiment;

Fig. 6 schematically shows a block diagram of a computing processing device for executing the method according to the present disclosure; and

Fig. 7 schematically shows a storage unit for holding or carrying program codes for implementing the method according to the present disclosure.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other if there is no conflict.

The intelligent engine start-stop function works on the vehicle to reduce fuel consumption and improve emissions by stopping the vehicle. However, if you are in a traffic jam, the smart engine start-stop function will cause frequent start and stop of the vehicle, which will increase fuel consumption and cannot improve emissions. Wherein, the principle of controlling the engine when the smart engine start-stop function is activated can be shown in FIG. 3, which can determine the engine stop or start condition according to the actual driving situation, and it can control the engine to automatically stop or start. At this stage, the function is manually turned off to avoid frequent start and stop of vehicles in a traffic jam environment. However, this method is more complicated and the user experience is poor. The technical solutions of the present disclosure will be described in detail below in conjunction with embodiments.

Example 1

Fig. 1 is a flow chart of an engine start-stop control method of Embodiment 1, as shown in Fig. 1. The engine start-stop control method:

S101: In a case where the intelligent engine start-stop function of the vehicle is in an active state, obtain the number of engine shutdowns during the duration when the vehicle speed is maintained below a preset first vehicle speed threshold.

Among them, the intelligent engine start-stop function has been introduced before, and it is mainly used to control the stop of the engine when the vehicle is waiting for a red light, and to control the start of the engine when the red light ends. The number of stops reflects the start and stop conditions of the engine within a duration. Correspondingly, the more the number of stops, the more times the vehicle starts and stops within the duration. In this embodiment, the first vehicle speed threshold is set to 10km/h. Of course, this value can be adjusted according to actual needs. The user can adjust the vehicle speed threshold on the selection interface to obtain that the engine is maintained at the vehicle speed The method for the number of stops within a duration of less than 10km/h includes: _{starting to record the number of engine stops when the obtained current vehicle speed V 1} <10km/h, wherein the number of stops is configured to maintain the vehicle speed at 10km/h. Recorded in the duration below h, each time the engine is stopped, the recorded number of stops of the engine is increased by 1. Among them, the acquired number of engine shutdowns is the recorded number of engine shutdowns.

S102: When the number of shutdowns is greater than a preset threshold of the number of shutdowns, control the vehicle to exit the intelligent engine start-stop function.

Wherein, the threshold of the number of shutdowns can be set according to the actual needs of the user. When the threshold of the number of shutdowns is designed to be 2, when the number of shutdowns is greater than 2, the vehicle is controlled to exit the intelligent engine start-stop Function, that is to say, the engine will no longer stop automatically, and will continue to be in the starting state to avoid frequent engine start and stop in this situation (traffic jam, etc.). Wherein, controlling the vehicle to exit the smart engine start-stop function can achieve the same effect as manually controlling the vehicle to exit the smart engine start-stop function. However, unlike manual control, the present disclosure automatically controls the smart engine The start-stop function exits, thereby improving the intelligence of the vehicle and avoiding the problems of delayed start and slow power response.

Further preferably, FIG. 2 is a flowchart of the engine start-stop control method after the vehicle is controlled to exit the intelligent engine start-stop function. As shown in FIG. 2, the engine start-stop control method further includes :

S201, continue to obtain the current vehicle speed V ₂ .

Wherein, the time of continuing to obtain the current vehicle speed is obtained after exiting the smart engine start-stop function, and the continuously-obtained current vehicle speed is used to reflect whether the vehicle is out of a congested state, that is, the previously paused and exited smart engine start-stop function Do you need to restart. In order to achieve this goal, the second vehicle speed threshold is preset to be 15 km/h. In addition, the second vehicle speed threshold can be selected according to actual needs. Of course, the second vehicle speed threshold can also be set to an adjustable mode, that is, the user can actively preset the second vehicle speed threshold according to the setting interface.

S202: When the continuously acquired current vehicle speed is greater than a preset second vehicle speed threshold (ie, V ₂ >15 km/h), control the vehicle to reactivate the intelligent engine start-stop function.

Wherein, the second vehicle speed threshold is greater than the first vehicle speed threshold. The second vehicle speed threshold is used to correspond to a reference value for the vehicle to reactivate the intelligent engine start-stop function, and the first vehicle speed threshold is used to limit the reference value for collecting the number of stops.

Further preferably, after controlling the vehicle to reactivate the intelligent engine start-stop function, the engine start-stop control method further includes the following steps S203 and/or S204, which are not shown in the figure:

Step S203, controlling the engine to be in a shutdown state, includes: controlling the engine to be in a shutdown state when the vehicle satisfies the condition 1 and/or the condition 2. For example, condition 1: the current vehicle speed is zero; condition 2: the brake pedal is depressed, and the current vehicle speed is not zero and lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the The first vehicle speed threshold.

Step S204, controlling the engine to be in a non-stop state, includes: controlling the engine to be in a starting state when the vehicle satisfies both the condition 3 and the condition 4. For example, condition 3: the current vehicle speed is higher than or equal to the third vehicle speed threshold; condition 4: the brake pedal is depressed.

Wherein, the current vehicle speed is the vehicle speed after the intelligent engine start-stop function is reactivated after the control of the vehicle. In this embodiment, the third vehicle speed threshold may be set to 3 km/h, indicating that the vehicle is traveling slowly or is close to stopping. In addition, it should be noted that when the smart engine start-stop function is activated, the control method of the engine is the same as the control logic described above.

Figure 3 is an example control logic block diagram of the engine start-stop control after the vehicle reactivates the intelligent engine start-stop function. In this example, the vehicle's body stability control unit (ESP, Electronic Stability Program) detects the vehicle speed, and The detected vehicle speed is sent to the vehicle controller of the vehicle so that the vehicle controller executes the corresponding control logic. As shown in Figure 3, the corresponding control logic can include the following steps:

S301, the vehicle controller judges whether the vehicle is stopped; S302, when the vehicle is not stopped, judges whether the brake pedal of the vehicle is depressed; S303, when the brake pedal of the vehicle is depressed, judges whether the vehicle speed Is lower than the third vehicle speed threshold (may be 3km/h); S304, when the vehicle is stopped or the vehicle speed is lower than the third vehicle speed threshold, control the engine to stop; S305, when the vehicle speed is higher than or equal to the third vehicle speed threshold In this case, the engine is controlled not to stop.

Using the method shown in Figure 3, the engine can be controlled to automatically stop or start when the intelligent engine start-stop function is turned on.

Further preferably, in addition to the step of S102, in the case that the threshold of the number of shutdowns is designed to be 2, the engine start-stop control method may further include: when the number of shutdowns is less than or equal to 2, controlling the vehicle The smart engine start-stop function is maintained in an active state.

Wherein, the maintenance of the engine start-stop function in the activated state indicates that the engine will not be turned off and the engine will be automatically started and stopped, and the engine will still be controlled to stop when the stop condition (which may be the condition 1 or the condition 2 in this embodiment) is met.

Through Embodiment 1, the start-stop control of the engine is realized, and the smart engine start-stop function of the vehicle is controlled according to the number of stops of the engine during the duration when the vehicle speed is maintained below the preset first vehicle speed threshold. Turn off, when the number of stops indicates that the vehicle may be on a congested road section and the engine may be repeatedly started and stopped, the vehicle is controlled to exit the intelligent engine start and stop function to avoid the burden of repeated start and stop on the engine. Then, it will judge whether the vehicle has passed the congested road section according to the vehicle speed. When the vehicle speed is greater than the preset second speed threshold, the vehicle has passed the congested road section by default, and the intelligent engine start-stop function can be restarted to continue The automatic start and stop of the engine is controlled, so that the user does not need to manually control the start and stop function of the smart engine to turn off, and there is no need to manually control the start and stop function of the smart engine to turn on, thereby improving the driving experience. Utilizing the interaction with the ESP that collects the vehicle speed and the vehicle controller used to control the intelligent engine start-stop function, the vehicle can intelligently adjust the activation or exit of the intelligent engine start-stop function when no one intervenes, thereby improving the intelligence of the vehicle , To avoid the problems of delayed start and slow power response.

Example 2

Fig. 4 is an overall flow chart of a vehicle controller and ESP in the second embodiment of the implementation of the engine start-stop control method. The engine start-stop control flowchart when the stop function is activated. As shown in Figure 4,

S401: The ESP detects the vehicle speed and sends it to the vehicle controller.

S402: The vehicle controller detects whether the intelligent engine start-stop function is active.

S403: When the smart engine start-stop function is in an inactive state, set the engine to prohibit automatic shutdown.

S404: Acquire the current vehicle speed when the smart engine start-stop function is in an active state.

S405: Determine whether the current vehicle speed is less than 10km/h, and return to S404 when the current vehicle speed is greater than or equal to 10km/h.

S406: When the current vehicle speed is less than 10km/h, record the number of engine shutdowns.

S407: It is determined whether the number of shutdowns of the engine is greater than 2, and when the number of shutdowns is less than or equal to 2, return to step S406.

S408: When the number of stops is greater than 2, exit the intelligent engine start-stop function.

S409: Determine whether the current vehicle speed is greater than 15 km/h, and when the current vehicle speed is less than or equal to 15 km/h, return to step S408.

S410: When the current vehicle speed is greater than 15 km/h, control the vehicle to reactivate the intelligent engine start-stop function.

Through this embodiment 2, it is possible to control the start and stop of the engine by activating the smart engine start and stop function or exit the smart engine start and stop function, so that the vehicle is stuck in traffic (frequent start and stop, which is shown as maintaining a speed of less than 10km/h. When the number of stops within the duration is greater than 2), the vehicle will not automatically stop, and when the vehicle speed is greater than 15km/h, the intelligent engine start-stop function will be reactivated. The vehicle controller can intelligently adjust the state of the intelligent engine start-stop function according to the vehicle speed and the number of automatic stops of the engine, so that the vehicle is running at a low speed and the traffic state is not good, resulting in frequent stops and rapid start of the engine. Shut down, thereby avoiding untimely starting of the engine and slow power response.

Example 3

Fig. 5 is a block diagram of a module of an engine start-stop control system according to the third embodiment, as shown in Fig. 5. The engine start-stop control system includes:

The number of shutdown acquisition unit 51 is configured to acquire the number of engine shutdowns during the duration when the vehicle speed is maintained below the preset first vehicle speed threshold when the intelligent engine start-stop function of the vehicle is activated; and the engine start-stop The function control unit 52 is configured to control the vehicle to exit the intelligent engine start-stop function when the number of stops is greater than a preset number of stop thresholds.

Preferably, the engine start-stop control system further includes: a vehicle speed acquisition unit 53 for acquiring the current vehicle speed after the vehicle is controlled to exit the intelligent engine start-stop function; and a function activation unit 54 for When the current vehicle speed is greater than a preset second vehicle speed threshold, the vehicle is controlled to reactivate the intelligent engine start-stop function, wherein the second vehicle speed threshold is greater than the first vehicle speed threshold.

Preferably, the engine start-stop control system further includes: a stop control unit 55, configured to control the vehicle to reactivate the intelligent engine start-stop function, when the vehicle satisfies one of the following conditions , Controlling the engine to be in a stopped state: the current vehicle speed is zero; the brake pedal is depressed, and the current vehicle speed is not zero and is lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the first A vehicle speed threshold; and/or a start control unit 56 for controlling the engine to start when the vehicle satisfies all the following conditions after reactivating the smart engine start-stop function after the control of the vehicle Status: The current vehicle speed is higher than or equal to the third vehicle speed threshold; the brake pedal is depressed.

Preferably, the start control unit 56 further includes: when the smart engine start-stop function is in an inactive state and the vehicle is in a power-on state, controlling the engine to be in a start state.

Preferably, the engine start-stop function control unit 52 is further configured to control the intelligent engine start-stop function of the vehicle to be maintained in an activated state when the number of stops is less than or equal to a preset number of stop thresholds.

Among them, the embodiment 3 has the same or similar technical solutions and technical effects as the embodiment 1 compared with the prior art, which will not be repeated here.

The present disclosure also provides a vehicle, which includes: a vehicle body stability control unit for obtaining vehicle speed; and a vehicle controller for receiving the vehicle speed from the vehicle body stability control unit and executing the engine start and stop of Embodiment 1. Method of control.

In other embodiments, the engine start-stop control system includes a processor and a memory, and the execution steps of the engine start-stop control method are stored in the memory as a program unit, and the processor executes the program unit stored in the memory to implement The corresponding function.

The processor contains the kernel, and the kernel calls the corresponding program unit from the memory. One or more kernels can be set, and the control of engine start and stop can be realized by adjusting kernel parameters.

The memory may include non-permanent memory in computer-readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM), and the memory includes at least one Memory chip.

The embodiment of the present disclosure provides a machine-readable storage medium having instructions stored on the machine-readable storage medium, and the instructions are used to cause a machine to execute the aforementioned engine start-stop control method.

The embodiment of the present disclosure provides a processor, the processor is used to run a program, wherein the method for starting and stopping the engine is executed when the program is running.

The present application also provides a computer program product, which when executed on a data processing device, is suitable for executing a program that initializes the steps of the motor start-stop control method in Embodiment 1.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are used to generate It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

In a typical configuration, the computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. The information can be computer readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.

The various component embodiments of the present disclosure may be implemented by hardware, or by software modules running on one or more processors, or by a combination of them. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the computing processing device according to the embodiments of the present disclosure. The present disclosure can also be implemented as a device or device program (for example, a computer program and a computer program product) for executing part or all of the methods described herein. Such a program for realizing the present disclosure may be stored on a computer-readable medium, or may have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

For example, FIG. 6 shows a computing processing device that can implement the method according to the present disclosure. The computing processing device traditionally includes a processor 1010 and a computer program product in the form of a memory 1020 or a computer readable medium. The memory 1020 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. The memory 1020 has a storage space 1030 for executing program codes 1031 of any method steps in the above methods. For example, the storage space 1030 for program codes may include various program codes 1031 respectively used to implement various steps in the above method. These program codes can be read from or written into one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards, or floppy disks. Such a computer program product is usually a portable or fixed storage unit as described with reference to FIG. 7. The storage unit may have storage segments, storage spaces, etc., arranged similarly to the memory 1020 in the computing processing device of FIG. 6. The program code can be compressed in an appropriate form, for example. Generally, the storage unit includes computer-readable code 1031', that is, code that can be read by a processor such as 1010, which, when run by a computing processing device, causes the computing processing device to execute the method described above. The various steps.

The “one embodiment”, “an embodiment” or “one or more embodiments” referred to herein means that a specific feature, structure or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present disclosure. In addition, please note that the word examples "in one embodiment" here do not necessarily all refer to the same embodiment.

In the instructions provided here, a lot of specific details are explained. However, it can be understood that the embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail, so as not to obscure the understanding of this specification.

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or equipment including a series of elements not only includes those elements, but also includes Other elements that are not explicitly listed, or also include elements inherent to such processes, methods, commodities, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, commodity or equipment that includes the element.

The above are only the preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the present disclosure. Within the scope of protection.

Claims

An engine start-stop control method, characterized in that the engine start-stop control method includes:

Under the condition that the intelligent engine start-stop function of the vehicle is in an active state, acquiring the number of engine shutdowns during the duration when the vehicle speed is maintained below the preset first vehicle speed threshold; and

When the number of shutdowns is greater than a preset threshold of the number of shutdowns, the vehicle is controlled to exit the intelligent engine start-stop function.
The engine start-stop control method according to claim 1, wherein after said controlling the vehicle to exit the intelligent engine start-stop function, the engine start-stop control method further comprises:

Get the current vehicle speed; and

When the current vehicle speed is greater than a preset second vehicle speed threshold, the vehicle is controlled to reactivate the intelligent engine start-stop function, wherein the second vehicle speed threshold is greater than the first vehicle speed threshold.
The engine start-stop control method according to claim 2, wherein after said controlling said vehicle to reactivate said intelligent engine start-stop function, said engine start-stop control method further comprises:

When the vehicle satisfies one of the following conditions, control the engine to be in a shutdown state:

The current vehicle speed is zero; and

The brake pedal is depressed, and the current vehicle speed is not zero and lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the first vehicle speed threshold; and/or

When the vehicle satisfies all the following conditions, control the engine to be in a starting state:

The current vehicle speed is higher than or equal to the third vehicle speed threshold; and

The brake pedal is depressed.
The engine start-stop control method according to claim 1, wherein the engine start-stop control method further comprises:

When the number of shutdowns is less than or equal to a preset threshold of the number of shutdowns, the intelligent engine start-stop function for controlling the vehicle is maintained in an activated state.
An engine start-stop control system, characterized in that the engine start-stop control system includes:

The number of shutdown acquisition unit is configured to acquire the number of shutdowns of the engine during the duration when the vehicle speed is maintained below the preset first vehicle speed threshold when the intelligent engine start-stop function of the vehicle is activated; and

The engine start-stop function control unit is used to control the vehicle to exit the intelligent engine start-stop function when the number of stops is greater than a preset number of stop thresholds.
The engine start-stop control system according to claim 5, wherein the engine start-stop control system further comprises:

A vehicle speed acquiring unit, configured to acquire the current vehicle speed after the control of the vehicle to exit the intelligent engine start-stop function; and

A function activation unit for controlling the vehicle to reactivate the intelligent engine start-stop function when the current vehicle speed is greater than a preset second vehicle speed threshold, wherein the second vehicle speed threshold is greater than the first vehicle speed threshold .
The engine start-stop control system according to claim 6, wherein the engine start-stop control system further comprises:

The shutdown control unit is used to control the engine to be in a shutdown state when the vehicle meets one of the following conditions after the vehicle is controlled to reactivate the intelligent engine start-stop function: the current vehicle speed is zero; The brake pedal is depressed, and the current vehicle speed is not zero and lower than a preset third vehicle speed threshold, wherein the third vehicle speed threshold is less than the first vehicle speed threshold; and/or

The start control unit is configured to control the engine to be in a start state after the vehicle is controlled to reactivate the intelligent engine start-stop function, when the vehicle meets all the following conditions: the current vehicle speed is higher than or equal to The third vehicle speed threshold; the brake pedal is depressed.
The engine start-stop control system according to claim 5, wherein the engine start-stop function control unit is further configured to control the vehicle's operation when the number of stops is less than or equal to a preset number of stop thresholds. The smart engine start-stop function is maintained in an activated state.
A vehicle, characterized in that the vehicle includes:

The body stability control unit is used to obtain the vehicle speed; and

The vehicle controller is configured to receive the vehicle speed from the body stability control unit, and execute the engine start-stop control method according to any one of claims 1 to 4.
A machine-readable storage medium, characterized in that instructions are stored on the machine-readable storage medium, and the instructions are used to make a machine execute the engine start-stop control method according to any one of claims 1-4.
A computing processing device, characterized in that it comprises:

A memory in which computer readable codes are stored; and

One or more processors, when the computer-readable code is executed by the one or more processors, the computing processing device executes the engine start-stop control method according to any one of claims 1 to 4 .
A computer program, comprising computer readable code, which when the computer readable code runs on a computing processing device, causes the computing processing device to execute the engine start-stop control according to any one of claims 1 to 4 method.