CN113236768B

CN113236768B - Vehicle control method, vehicle control device, computer equipment and storage medium

Info

Publication number: CN113236768B
Application number: CN202110573163.9A
Authority: CN
Inventors: 曹永�; 刘强; 郭太民; 宗伟; 王广涛; 吕毅
Original assignee: Shengrui Transmission Co Ltd
Current assignee: Shengrui Transmission Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-10-11
Anticipated expiration: 2041-05-25
Also published as: CN113236768A

Abstract

The present disclosure relates to a vehicle control method, apparatus, computer device and storage medium, comprising: acquiring a braking initial gear when a vehicle slides; acquiring a brake master cylinder pressure value and a target gear when a vehicle brakes, wherein the target gear is more than or equal to 1 gear; and controlling the automatic gearbox to enter neutral control according to the relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder. The brake initial gear, the target gear and the pressure value of the brake master cylinder of the vehicle are monitored, so that the whole vehicle is controlled to enter a neutral control state before being parked, the neutral control efficiency is improved, the load of an engine is reduced, the emission is reduced, and the oil consumption is reduced.

Description

Vehicle control method, vehicle control device, computer equipment and storage medium

Technical Field

The present disclosure relates to the field of control technologies for automatic transmissions of vehicles and vehicles thereof, and in particular, to a vehicle control method, apparatus, computer device, and storage medium.

Background

With the increasing number of vehicles on the market, the emission requirements of vehicles in countries around the world are more and more strict. In order to meet emission requirements, a vehicle enterprise needs to optimize performance of each hardware of the whole vehicle and also perform synchronous optimization in terms of software control.

At present, many vehicle enterprises adopt a neutral position control function, the neutral position control function can not only effectively reduce emission and oil consumption, but also greatly improve the gear shifting quality. And (3) a middle position control process: when the automobile is stopped, the driving gear is not required to be manually switched to the neutral gear, the software automatically controls the clutch of the driving gear to be separated, the driving gear is changed to the neutral gear, and at the moment, the rotating speed of the turbine is increased from zero to the idling rotating speed of the engine.

The traditional neutral control method is to trigger the neutral control function after the parking gear shifting is finished, the method also causes power waste and increases the oil consumption in the period from the vehicle stop to the triggering of the neutral control function, and the control in the period is not optimized in the existing gear shifting control strategy of the automatic transmission.

Disclosure of Invention

In order to solve the technical problems or at least partially solve the technical problems, the present disclosure provides a vehicle control method, an apparatus, a computer device, and a storage medium, which implement that a whole vehicle enters a neutral control state before the vehicle is parked, improve neutral control efficiency, reduce engine load, reduce emission, and reduce fuel consumption.

In a first aspect, an embodiment of the present disclosure provides a vehicle control method, including:

acquiring a braking initial gear when a vehicle slides;

the method comprises the steps of obtaining a brake master cylinder pressure value and a target gear when a vehicle brakes, wherein the target gear is more than or equal to 1 gear;

and controlling the automatic gearbox to enter a middle position for control according to the relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder.

Optionally, the controlling the automatic transmission to enter the neutral position according to the relationship between the initial braking gear and the target gear and the pressure value of the brake master cylinder includes:

when the difference value between the braking initial gear and the target gear is greater than or equal to a first set value and the pressure value of the brake master cylinder is greater than or equal to a second set value, controlling the automatic gearbox to enter neutral control;

wherein the first set value comprises a gear value.

Optionally, after controlling the automatic transmission to enter the neutral position control according to the relationship between the initial braking gear and the target gear and the pressure value of the brake master cylinder, the method further includes:

and controlling the vehicle to be switched from the braking initial gear to the target gear and controlling the clutch to act.

Optionally, the controlling the clutch action comprises:

controlling the normally-open clutch to perform oil filling action;

and controlling the normally closed clutch to perform oil drainage action.

Optionally, the controlling the normally open clutch to perform an oil filling action includes:

controlling the electromagnetic valve of the normally-open clutch to close according to the acquired current;

controlling the normally-open clutch to perform oil filling action according to the pressure value of the electromagnetic valve;

the normally closed clutch is controlled to perform oil drainage action, and the method comprises the following steps:

controlling an electromagnetic valve of the normally closed clutch to be opened according to the obtained current;

and controlling the normally closed clutch to perform oil drainage action according to the pressure value of the electromagnetic valve.

Optionally, the second set value is 5bar.

In a second aspect, an embodiment of the present invention further provides a control apparatus for a vehicle, including:

the initial information acquisition module is used for acquiring a braking initial gear when the vehicle slides;

the braking information acquisition module is used for acquiring a pressure value of a brake master cylinder and a target gear when a vehicle brakes, wherein the target gear is more than or equal to 1 gear;

and the control module is used for controlling the automatic gearbox to enter neutral control according to the relation between the braking initial gear and the target gear and the pressure value of the brake master cylinder.

In a third aspect, an embodiment of the present invention further provides a computer device, including:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the vehicle control method according to any one of the first aspects.

In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the vehicle control method according to any one of the first aspect.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

according to the vehicle control method provided by the embodiment of the invention, the brake initial gear when the vehicle slides, the pressure value of the brake master cylinder and the target gear when the vehicle brakes are obtained, the gearbox is controlled to enter the neutral control according to the relation between the obtained brake initial gear and the target gear of the vehicle and the pressure value of the brake master cylinder, so that the vehicle can enter the neutral control in the deceleration running process, the neutral control time is increased, the load of an engine is reduced in advance, and the problems of overhigh vehicle emission and overlarge oil consumption are solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic flow chart diagram of a vehicle control method provided by an embodiment of the present disclosure;

FIG. 2 is a flow chart diagram of another vehicle control method provided by the disclosed embodiments;

FIG. 3 is a schematic flow chart diagram of yet another vehicle control method provided by an embodiment of the present disclosure;

FIG. 4 is a schematic flow chart diagram illustrating yet another vehicle control method provided by an embodiment of the present disclosure;

FIG. 5 is a schematic flow chart diagram illustrating yet another vehicle control method provided by an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a control device of a vehicle according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Fig. 1 is a schematic flowchart of a vehicle control method according to an embodiment of the present disclosure. The embodiment can be applied to the situation that the vehicle is controlled to enter the neutral control state according to the relation between the braking initial gear when the vehicle slides and the target gear when the vehicle brakes and the pressure value of the brake master cylinder before the vehicle stops. The method of the embodiment may be executed by a control device of a vehicle, which may be implemented in hardware and/or software and may be configured in a computer device. The vehicle control method described in any embodiment of the present application may be implemented.

In order to solve the problem, the embodiment of the disclosure provides a vehicle braking neutral control method.

As shown in fig. 1, the method specifically includes the following steps:

and S110, acquiring a braking initial gear when the vehicle slides.

In the driving process of the vehicle, in order to reduce the power consumption of the vehicle, a neutral control function is generally triggered after the vehicle is stopped and gear shifting is completed, and then the rotating speed of the turbine is increased from zero to the idling rotating speed of the engine. However, there is a waste of power during the vehicle stop-to-neutral function trigger. In order to reduce vehicle power consumption, the embodiment of the disclosure provides a vehicle control method, which obtains a braking initial gear of a vehicle in a vehicle sliding process, wherein the braking initial gear refers to a gear corresponding to a vehicle speed of the vehicle before braking is triggered, and the braking initial gear of the vehicle has a corresponding relation with an accelerator opening, an engine speed and the vehicle speed in the vehicle. Specifically, as shown in table 1 below, when the accelerator opening of the vehicle before braking is triggered is 10%, the engine speed is 1680r/min, and the vehicle speed is 39Km/h, the braking initial gear corresponding to the vehicle is gear 3, and when the accelerator opening of the vehicle before braking is triggered is 10%, the engine speed is 1700r/min, and the vehicle speed is 48Km/h, the braking initial gear corresponding to the vehicle is gear 4.

Table 1 shows an example in which the accelerator opening degree of the vehicle corresponds to 10%, and in other embodiments, the accelerator opening degree of the vehicle is not limited to 10%.

TABLE 1 correspondence between initial braking gear and throttle opening, engine speed, and vehicle speed

And S120, obtaining a brake master cylinder pressure value and a target gear when the vehicle is braked.

Specifically, the pressure value of the brake master cylinder corresponds to a pressure value of a driver stepping on a foot brake of the vehicle, the target gear is a gear corresponding to the driver stepping on the foot brake in the sliding process of the vehicle, wherein the target gear is larger than or equal to 1 gear, namely the vehicle is controlled to enter neutral control before parking, the target gear also has a corresponding relation with the accelerator opening, the engine rotating speed and the vehicle speed in the vehicle, and when the driver stepping on the foot brake in the sliding process of the vehicle, the accelerator opening of the vehicle is reduced to 0. Specifically, as shown in table 2 below, when the accelerator opening of the vehicle after triggering braking is 0, the engine speed is 900r/min, and the vehicle speed is 19Km/h, the target gear corresponding to the vehicle is gear 2, and when the accelerator opening of the vehicle after triggering braking is 0, the engine speed is 1200r/min, and the vehicle speed is 33Km/h, the braking initial gear corresponding to the vehicle is gear 3.

TABLE 2 corresponding relationship between target gear and throttle opening, engine speed and vehicle speed

Specifically, when the obtained accelerator opening of the vehicle is 10% when the vehicle is not braked and is in a coasting state, the engine speed is 1680r/min, and the vehicle speed is 39Km/h, the initial braking gear of the vehicle is determined to be 3, that is, the vehicle is driven to move by 3 before braking, when a driver wants to realize braking and parking, the accelerator opening of the vehicle and the engine speed are reduced by stepping on a foot brake to realize deceleration and parking, that is, after stepping on the foot brake, when the accelerator opening of the vehicle is 0, the engine speed is 900r/min, and the vehicle speed is 19Km/h, the target gear of the vehicle during braking is determined to be 2.

And S130, controlling the automatic gearbox to enter neutral control according to the relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder.

When the obtained braking initial gear is larger than the target gear and the pressure value of the brake master cylinder is larger than or equal to the preset pressure value, the automatic gearbox is controlled to enter the neutral position control, the vehicle is controlled to enter the neutral position control in the deceleration process, the neutral position control time is prolonged, the engine load is reduced in advance, and the problems of overhigh vehicle emission and overlarge oil consumption are solved.

Illustratively, in the process of vehicle sliding, if the acquired opening degree of the vehicle accelerator is 10%, the engine speed is 1680r/min, and the vehicle speed is 39Km/h, the initial braking gear is determined to be the 3 gear according to table 1, after the vehicle triggers braking, the acquired opening degree of the vehicle accelerator is 0, the engine speed is 900r/min, and the vehicle speed is 19Km/h, the target gear is determined to be the 2 gear according to table 2, and when the pressure value pressed on the foot brake by the driver is greater than or equal to the preset pressure value, it is determined that the driver wants to realize vehicle parking through deceleration, the automatic transmission is controlled to enter the neutral position control, the neutral position control drives the gear clutch to be separated, at this time, the turbine speed is increased from zero to the engine idle speed, the vehicle enters the neutral position control in the process of sliding deceleration, and the fuel consumption and the power consumption of the vehicle are reduced.

According to the vehicle control method provided by the embodiment of the invention, the initial braking gear, the pressure value of the brake master cylinder and the target gear during braking are obtained when the vehicle slides, and the gearbox is controlled to enter the neutral control according to the obtained relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder during vehicle sliding, so that the vehicle can enter the neutral control during shifting and decelerating running, the neutral control time is increased, the load of an engine is reduced in advance, and the problems of over-high vehicle emission and over-high oil consumption are solved.

Fig. 2 is a schematic flow chart of another vehicle braking neutral position control method provided in the embodiment of the present disclosure, where the embodiment is based on the foregoing embodiment, and the method specifically includes the following steps:

and S210, obtaining a braking initial gear when the vehicle slides.

And S220, obtaining a brake master cylinder pressure value and a target gear when the vehicle is braked.

And S230, judging whether the difference value between the initial braking gear and the target gear is greater than or equal to a first set value or not and whether the pressure value of the master cylinder is greater than or equal to a second set value or not, if so, executing a step S240, otherwise, returning to execute the step S210.

And S240, controlling the automatic gearbox to enter neutral position control.

Optionally, the first setting value includes a shift value.

Optionally, the second set point is 5bar.

Specifically, the control of the automatic gearbox to enter the neutral position according to the relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder comprises the step of controlling the automatic gearbox to enter the neutral position when the difference value between the initial braking gear and the target gear is larger than or equal to a first set value and the pressure value of the brake master cylinder is larger than or equal to a second set value, wherein the first set value comprises a gear position value, and the second set value is 5bar. For example, when the obtained braking initial gear before braking of the vehicle is 3 gears, the obtained target gear of the vehicle after a driver steps on a foot brake in the vehicle sliding process is 2 gears, and the pressure value of a brake master cylinder of the vehicle is 8bar, namely the difference value between the braking initial gear and the target gear is greater than or equal to a first set value, and the pressure value of the brake master cylinder is greater than or equal to a second set value, at this time, it is determined that the driver wants to realize parking through deceleration according to the braking initial gear, the target gear and the pressure value of the brake master cylinder, in order to reduce the power consumption and the oil consumption of the vehicle, when the difference value between the braking initial gear and the target gear is greater than or equal to the first set value and the pressure value of the brake master cylinder is greater than or equal to the second set value, the automatic gearbox is controlled to enter a neutral position, the vehicle can enter the neutral position control in the shifting and decelerating running process, the neutral position control time is increased, the engine load is reduced in advance, and the problems of over-high emission and over-high oil consumption of the vehicle are solved.

If the obtained braking initial gear when the vehicle slides is 3 gears, and the target gear when the vehicle brakes is 4 gears after a driver steps on a foot brake (at this time, the pressure of stepping on a foot brake plate may be reduced by the driver) in the vehicle sliding process, that is, at this time, it can be determined that the driver does not intend to decelerate and stop according to the relationship between the braking initial gear and the target gear, and even if the obtained pressure value of a brake master cylinder of the vehicle meets a second set value, the automatic transmission is controlled not to enter neutral control, but the step S210 and the step S220 are returned, that is, the braking initial gear when the vehicle slides, and the pressure value of the brake master cylinder and the target gear when the vehicle brakes are continuously obtained. If the obtained pressure value of the brake master cylinder of the vehicle is smaller than the second set value, but the difference value between the obtained braking initial gear and the target gear of the vehicle is larger than or equal to the first set value, the automatic gearbox is also controlled not to enter the middle control, and the step S210 and the step S220 are returned, namely the braking initial gear when the vehicle slides, the pressure value of the brake master cylinder and the target gear when the vehicle brakes are continuously obtained. In addition, if the obtained pressure value of the brake master cylinder of the vehicle is smaller than the second set value and the obtained difference value between the initial braking gear and the target gear of the vehicle is smaller than the first set value, the automatic gearbox is also controlled not to enter the middle control, and the steps S210 and S220 are returned, namely the initial braking gear when the vehicle slides and the pressure value of the brake master cylinder and the target gear when the vehicle brakes are continuously obtained.

It should be noted that, in the above embodiment, the obtained braking initial gear of the vehicle is the gear 3, and the target gear is the gear 2, for example, in other possible embodiment modes, as long as it is satisfied that the difference between the obtained braking initial gear and the target gear of the vehicle is greater than or equal to one gear position value, for example, the braking initial gear is the gear 3, and the target gear is the gear 1, the above requirement is also satisfied.

According to the vehicle control method provided by the embodiment of the disclosure, the relation between the difference value of the initial braking gear and the target gear and the first set value and the relation between the pressure value of the master cylinder and the second set value are judged, and when the difference value of the initial braking gear and the target gear is larger than or equal to the first set value and the pressure value of the master cylinder is larger than or equal to the second set value, the automatic gearbox is controlled to enter neutral control. If the pressure of stepping on the foot brake is reduced by a driver, the fact that the driver does not have the parking intention is indicated at the moment, namely the automobile controller can adjust the automatic clutch, at the moment, the braking initial gear, the pressure value of the brake master cylinder and the target gear information of the automobile can be continuously obtained, and the automatic gearbox is controlled to enter the middle position control until the difference value of the braking initial gear and the target gear is larger than or equal to the first set value and the pressure value of the brake master cylinder is larger than or equal to the second set value.

Fig. 3 is a schematic flowchart of another vehicle control method provided in an embodiment of the present disclosure, where on the basis of the foregoing embodiment, the present embodiment further includes, after step S130:

and S140, controlling the vehicle to be switched from the braking initial gear to the target gear.

When the difference value between the initial braking gear and the target gear is larger than or equal to a first set value and the pressure value of the brake master cylinder is larger than or equal to a second set value, the automatic gearbox is controlled to enter the middle position control, the middle position control can automatically switch the vehicle from the initial braking gear to the target gear, so that the vehicle acts according to the target gear, namely, the vehicle enters the middle position control in advance, the middle position control time is increased, the engine load is reduced in advance, and the problems of overhigh vehicle emission and overlarge oil consumption are solved.

And S150, controlling the clutch to act.

In addition, the vehicle clutch is controlled to act in the process that the neutral control automatic switching vehicle is switched from the braking initial gear to the target gear.

According to the vehicle control method provided by the embodiment of the disclosure, after the automatic gearbox is controlled to enter the neutral control, the vehicle is controlled to be switched from the braking initial gear to the target gear and the clutch is controlled to act, so that the vehicle acts under the action of the neutral control, the load of an engine is reduced, and the problems of overhigh vehicle emission and overlarge oil consumption are solved.

Fig. 4 is a schematic flowchart of another vehicle control method provided in an embodiment of the present disclosure, where the present embodiment is based on the foregoing embodiment, and one possible implementation manner of controlling the clutch to operate in S150 is as follows, including:

and S151, controlling the normally-open clutch to perform oil filling operation.

And S152, controlling the normally closed clutch to perform oil drainage action.

Specifically, the clutch action control comprises an oil charging action of controlling the normally-open clutch and an oil discharging action of controlling the normally-closed clutch, and the clutch cavity is filled with oil quickly and stably by controlling the clutch to perform the oil charging action. And the clutch is controlled to drain oil, so that incomplete separation of the clutch can be prevented, and the problems that partial oil in a working oil cavity of a clutch piston is thrown to the outer wall of the oil cavity under the action of centrifugal force to cause the piston return spring to be incapable of pushing the piston to be completely reset, the clutch is not completely separated, gear shifting impact is generated, abrasion of a friction plate is aggravated, the oil temperature of a transmission rises and the like when the clutch is in a high-speed rotating state are avoided.

Fig. 5 is a schematic flowchart of another vehicle control method provided in an embodiment of the present disclosure, where this embodiment is based on the foregoing embodiment, and a possible implementation manner of controlling the normally-open clutch to perform the oil filling operation in S151 is as follows, including:

and S1511, controlling the electromagnetic valve of the normally open clutch to close according to the acquired current.

And S1512, controlling the normally open clutch to perform oil filling operation according to the pressure value of the electromagnetic valve.

The automatic transmission controller realizes accurate control of the solenoid valve of the middle position control clutch through a current closed-loop method, specifically, the automatic transmission controller controls the solenoid valve of the normally open clutch to be closed according to the magnitude of the obtained current, and after the solenoid valve is closed, the normally open clutch is controlled to perform oil filling according to the pressure value of the solenoid valve.

In addition, one possible implementation manner of controlling the normally closed clutch to perform the oil release operation in S152 is as follows, and includes:

s1521, controlling an electromagnetic valve of the normally closed clutch to be opened according to the obtained current.

And S1522, controlling the normally closed clutch to perform oil drainage action according to the pressure value of the electromagnetic valve.

The automatic transmission controller realizes accurate control of the solenoid valve of the neutral control clutch through a current closed-loop method, specifically, the automatic transmission controller controls the solenoid valve of the normally closed clutch to be opened according to the magnitude of the acquired current, and after the solenoid valve is opened, the normally closed clutch is controlled to perform oil drainage according to the pressure value of the solenoid valve.

On the basis of the above embodiment, fig. 6 is a schematic structural diagram of a vehicle control device provided in an embodiment of the present disclosure, and as shown in fig. 6, the device includes:

the initial information acquiring module 610 is used for acquiring a braking initial gear when the vehicle slides.

And the braking information obtaining module 620 is configured to obtain a master cylinder pressure value and a target gear when the vehicle brakes, where the target gear is greater than or equal to 1 gear.

Specifically, the braking initial gear of the vehicle refers to a gear corresponding to the vehicle speed of the vehicle before braking is triggered, wherein the braking initial gear of the vehicle has a corresponding relation with the accelerator opening, the engine speed and the vehicle speed in the vehicle. The pressure value of the brake master cylinder corresponds to a pressure value of a driver stepping on a foot brake of the vehicle, the target gear is a gear corresponding to the foot brake of the vehicle stepped by the driver in the sliding process, the target gear is larger than or equal to 1 gear, the target gear also has a corresponding relation with the accelerator opening, the engine speed and the vehicle speed of the vehicle, and the accelerator opening of the vehicle is reduced to 0 after the foot brake of the driver is stepped by the vehicle in the sliding process.

For example, when the acquired braking initial gear of the vehicle is a 3-gear, namely the vehicle drives the vehicle to move in the 3-gear before braking, when the driver wants to realize braking and parking, the accelerator opening of the vehicle and the engine speed are further reduced through a foot brake which is stepped on to realize deceleration and parking, namely after the foot brake is stepped on, the acquired accelerator opening of the vehicle, the engine speed and the vehicle speed are changed, and the target gear is determined according to the acquired accelerator opening of the vehicle, the engine speed and the vehicle speed.

And the control module 630 is used for controlling the automatic gearbox to enter neutral control according to the relation between the initial braking gear and the target gear and the pressure value of the brake master cylinder.

For example, when the vehicle is coasting, the vehicle information obtaining module 610 obtains a vehicle accelerator opening of 10%, an engine speed of 1680r/min, and a vehicle speed of 39Km/h, and the vehicle information obtaining module 610 determines that the initial braking gear is a 3-gear according to the obtained vehicle accelerator opening, the obtained engine speed, and the obtained vehicle speed. After a vehicle triggers braking, the vehicle information acquisition module 610 acquires that the opening of a vehicle accelerator after braking is 0, when the engine speed is 900r/min, the vehicle speed is 19Km/h, the vehicle information acquisition module 610 determines that a target gear is 2 gears according to the acquired opening of the vehicle accelerator, the engine speed and the vehicle speed, and when the pressure value of a vehicle service brake acquired by the vehicle information acquisition module 610 is greater than or equal to a preset pressure value, it can be determined that a driver wants to realize vehicle parking through deceleration, the automatic transmission is controlled to enter neutral position control, the neutral position control automatically controls the drive gear clutch to be separated, at this time, the turbine speed is increased from zero to the idle speed of the engine, the vehicle enters neutral position control in the process of sliding deceleration, and the oil consumption and the power consumption of the vehicle are reduced.

According to the vehicle control device provided by the embodiment of the invention, the initial braking gear of the vehicle is obtained by the initial information obtaining module, the main control module controls the automatic gearbox to enter the neutral control according to the relation between the initial braking gear and the target gear and the pressure value of the main braking cylinder when the vehicle brakes, so that the vehicle can enter the neutral control in the shifting and decelerating running process, the neutral control time is increased, the load of an engine is reduced in advance, and the problems of overhigh vehicle emission and overlarge oil consumption are solved.

The vehicle control device provided by the embodiment of the invention can execute the vehicle control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

On the basis of the above embodiments, fig. 7 is a schematic structural diagram of a computer device provided in an embodiment of the present disclosure. As shown in fig. 7, the computer apparatus includes a processor 710, a memory 720, an input device 730, and an output device 740; the number of the processors 710 in the computer device may be one or more, and one processor 710 is taken as an example in fig. 7; the processor 710, the memory 720, the input device 730, and the output device 740 in the computer apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 7.

The memory 720, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the vehicle control method in the embodiments of the present invention. The processor 710 executes various functional applications and data processing of the computer device by executing software programs, instructions and modules stored in the memory 720, so as to implement the vehicle control method provided by the embodiment of the invention.

The memory 720 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 720 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 720 may further include memory located remotely from the processor 710, which may be connected to a computer device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 730 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device, and may include a keyboard, a mouse, and the like. The output device 740 may include a display device such as a display screen.

The disclosed embodiments also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are used to implement a vehicle control method provided by an embodiment of the present invention.

Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle control method provided by any embodiment of the present invention.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It should be noted that, in the embodiment of the apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle control method characterized by comprising:

obtaining a braking initial gear when a vehicle slides, wherein the braking initial gear refers to a gear corresponding to the speed of the vehicle before braking is triggered;

the method comprises the steps that a pressure value of a brake master cylinder and a target gear during vehicle braking are obtained, wherein the target gear is larger than or equal to 1 gear, the pressure value of the brake master cylinder is a pressure value of a driver stepping on a vehicle foot brake, and the target gear is a corresponding gear after the driver steps on the vehicle foot brake in the sliding process of the vehicle;

controlling the automatic gearbox to enter neutral control according to the relation between the braking initial gear and the target gear and the pressure value of the brake master cylinder;

the control of the automatic gearbox to enter neutral position control according to the relation between the braking initial gear and the target gear and the pressure value of the brake master cylinder comprises the following steps:

wherein the first set value comprises a gear position value.

2. The method according to claim 1, wherein after controlling the automatic transmission into the neutral control according to the relationship between the braking initial gear and the target gear and the pressure value of the brake master cylinder, the method further comprises:

3. The method of claim 2, wherein the controlling the clutch action comprises:

controlling the normally-open clutch to perform oil filling action;

and controlling the normally closed clutch to perform oil drainage action.

4. The method of claim 3, wherein controlling the normally-open clutch to perform an oil fill event comprises:

controlling the normally-open clutch to perform oil filling according to the pressure value of the electromagnetic valve;

the normally closed clutch of control carries out the draining action, includes:

5. The method according to claim 1, characterized in that the second set value is 5bar.

6. A control apparatus of a vehicle, characterized by comprising:

the system comprises an initial information acquisition module, a braking initial gear and a braking control module, wherein the initial information acquisition module is used for acquiring a braking initial gear when a vehicle slides, and the braking initial gear refers to a gear corresponding to the speed of the vehicle before braking is triggered;

the braking information acquisition module is used for acquiring a pressure value of a braking main cylinder and a target gear when the vehicle brakes, wherein the target gear is larger than or equal to 1 gear, the pressure value of the braking main cylinder is a pressure value when a driver steps on a foot brake of the vehicle, and the target gear is a corresponding gear after the driver steps on the foot brake of the vehicle in the sliding process of the vehicle;

the control module is used for controlling the automatic gearbox to enter neutral control according to the relation between the braking initial gear and the target gear and the pressure value of the brake master cylinder;

the control module includes:

when the difference value between the braking initial gear and the target gear is larger than or equal to a first set value and the pressure value of the brake master cylinder is larger than or equal to a second set value, controlling the automatic gearbox to enter neutral control;

wherein the first set value comprises a gear position value.

7. A computer device, comprising:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, cause the one or more processors to implement the vehicle control method according to any one of claims 1 to 5.

8. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements a vehicle control method according to any one of claims 1 to 5.