CN117022286A - Vehicle drive control method, device, computer-readable storage medium, and vehicle - Google Patents

Abstract

The application is suitable for the technical field of automobiles, and provides a driving control method and device of a vehicle, a computer readable storage medium and the vehicle. Wherein the driving control method of the vehicle is applied to a control unit of a transfer case, the driving control method comprising: acquiring a current first vehicle signal of the vehicle, wherein the first vehicle signal comprises a first vehicle speed and a first accelerator pedal depth of the vehicle; determining a first depth threshold of an accelerator pedal corresponding to the first vehicle speed; and if the first accelerator pedal depth is smaller than or equal to the first depth threshold value, controlling the transfer case to work in a two-wheel driving mode. The embodiment of the application can reduce the power waste and the oil consumption of the vehicle.

Description

Vehicle drive control method, device, computer-readable storage medium, and vehicle

Technical Field

The application belongs to the technical field of automobiles, and particularly relates to a driving control method and device of a vehicle, a computer readable storage medium and the vehicle.

Background

With the improvement of the living standard of people, users put forward higher use demands on vehicles, and the vehicles are inoculated for off-road vehicles which are in charge of urban commute and outdoor crossing. Such vehicles are typically configured with a four-wheel drive system. The four-wheel drive system consists of two parts, namely a transfer case of the execution part and a control unit of the control part. The control unit can control the on-off of an electromagnetic coil in the transfer case according to a torque calculation result, the armature is attracted by the rotor when the electromagnetic coil is electrified, and the active and passive cam plates generate speed difference sliding rotation, so that the friction plate is pressed tightly, and the torque transmission work is completed.

In practical application, in the scenes of microslip, lane changing, hollow road, S-bend road and the like when a vehicle starts, the front wheel speed and the rear wheel speed cannot be guaranteed to be completely consistent, in the related art, a four-wheel drive system can load four-wheel drive torque to offset the speed difference, at the moment, a friction plate group pressed by a transfer case can generate sliding friction, the power of the vehicle is lost, and the loss is in direct proportion to the pressing degree and the sliding friction amount of the friction plate. This causes unnecessary power waste of the vehicle and improves fuel consumption of the vehicle.

Disclosure of Invention

The embodiment of the application provides a vehicle driving control method and device, a computer readable storage medium and a vehicle, which can solve the problem of high oil consumption caused by power waste of the vehicle in the related technology.

A first aspect of an embodiment of the present application provides a driving control method of a vehicle, applied to a control unit of a transfer case, including: acquiring a current first vehicle signal of the vehicle, wherein the first vehicle signal comprises a first vehicle speed and a first accelerator pedal depth of the vehicle; determining a first depth threshold of an accelerator pedal corresponding to the first vehicle speed; and if the first accelerator pedal depth is smaller than or equal to the first depth threshold value, controlling the transfer case to work in a two-wheel driving mode.

A second aspect of the present application provides a driving control device for a vehicle, configured to a control unit of a transfer case, the driving control device for a vehicle including: an acquisition unit configured to acquire a current first vehicle signal of the vehicle, where the first vehicle signal includes a first vehicle speed and a first accelerator pedal depth of the vehicle; a determining unit configured to determine a first depth threshold of an accelerator pedal corresponding to the first vehicle speed; and the driving control unit is used for controlling the transfer case to work in a two-wheel driving mode if the depth of the first accelerator pedal is smaller than or equal to the first depth threshold value.

A third aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the drive control method of a vehicle described above.

A fourth aspect of the embodiment of the present application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method for controlling driving of a vehicle described above when executing the computer program.

A fifth aspect of the embodiment of the present application provides a vehicle, including a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the drive control method of the vehicle when executing the computer program.

A sixth aspect of the embodiments of the present application provides a computer program product for causing an electronic device/vehicle to execute the driving control method of the vehicle described above when the computer program product is run on the electronic device/vehicle.

In the embodiment of the application, the first depth threshold value of the accelerator pedal corresponding to the first vehicle speed is determined by acquiring the current first vehicle signal of the vehicle, and if the first depth threshold value of the accelerator pedal is smaller than or equal to the first depth threshold value, the vehicle is in a normal running state, and the transfer case is controlled to work in a two-wheel driving mode at the moment, so that unnecessary increase of sliding friction plates caused by four-wheel driving intervention is avoided, and the power waste and the fuel consumption of the vehicle are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a four-wheel drive system according to an embodiment of the present application;

fig. 2 is a schematic implementation flow chart of a driving control method of a vehicle according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a data flow of a four-drive system according to an embodiment of the present application;

fig. 4 is a schematic structural view of a driving control device for a vehicle according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a vehicle according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be protected by the present application based on the embodiments of the present application.

As shown in the schematic diagram of the transfer case structure in fig. 1, the four-wheel drive system is composed of two parts, namely a transfer case of an execution part and a control unit of a control part. The control unit can control the on-off of an electromagnetic coil in the transfer case according to a torque calculation result, after the transfer case is electrified, the armature is attracted by the rotor, and the active and passive cam plates generate speed difference slip, so that the friction plates are pressed tightly, the torque transmission work is completed, the wheels are driven, and the running of the vehicle is realized.

In practical application, in the scenes of microslip, lane changing, hollow road, S-bend road and the like when a vehicle starts, the front wheel speed and the rear wheel speed cannot be guaranteed to be completely consistent, and in the related art, a four-wheel drive system loads four-wheel drive torque to perform four-wheel drive so as to offset the speed difference. At this time, the friction plate group pressed by the transfer case can generate skid abrasion, so that the power of the vehicle is lost, and the loss is proportional to the pressing degree of the friction plate and the skid abrasion. This causes unnecessary power waste of the vehicle and improves fuel consumption of the vehicle.

In view of the above, the application provides a driving control method for a vehicle, which can control a transfer case to work in a two-wheel driving mode under a specific vehicle use scene, avoid unnecessary increase of sliding friction plates caused by four-wheel drive intervention, and reduce power waste and oil consumption of the vehicle.

In order to illustrate the technical scheme of the application, the following description is made by specific examples.

Fig. 2 is a schematic implementation flow chart of a vehicle driving control method according to an embodiment of the present application, where the method may be applied to a control unit of a transfer case, and may be applied to situations where power waste and fuel consumption of a vehicle need to be reduced.

In an embodiment of the present application, the control unit may be disposed on an electronic device, and the electronic device may be an intelligent device such as a computer, a smart phone, or a vehicle-mounted device. The control unit may also be integrated into a vehicle for controlling a transfer case on the vehicle, which may be a new energy vehicle, a hybrid vehicle or another type of vehicle, without limiting the application.

Specifically, the above-described driving control method of the vehicle may include the following steps S201 to S203.

Step S201, a first vehicle signal of a current vehicle is acquired.

The first vehicle signal is a signal acquired in real time from the vehicle during driving control, and may include a first vehicle speed and a first accelerator pedal depth of the vehicle. The first speed is the current speed of the vehicle and can be acquired by a speed sensor. The first accelerator pedal depth is the depth of the current depression of the accelerator pedal of the vehicle and can be acquired through an accelerator pedal sensor.

Step S202, a first depth threshold of an accelerator pedal corresponding to a first vehicle speed is determined.

The first depth threshold of the accelerator pedal is used for dividing the use scene of the vehicle into a normal driving scene and a hard driving scene.

In embodiments of the present application, the first depth thresholds corresponding to different first vehicle speeds may be the same or different. Considering that when the vehicle is driven, if the vehicle speed is higher, the driver needs to step the accelerator pedal deeper to give the vehicle more power, and thus, in some embodiments, the first depth threshold of the accelerator pedal may be positively correlated with the first vehicle speed, and the larger the first vehicle speed, the larger the corresponding first depth threshold of the accelerator pedal.

In step S203, if the first accelerator pedal depth is less than or equal to the first depth threshold, the transfer case is controlled to operate in the two-wheel driving mode.

In an embodiment of the application, the vehicle is configured with a four-wheel drive system while supporting operation in two-wheel drive mode and four-wheel drive mode. In the two-wheel drive mode, i.e., a two-wheel drive mode, the vehicle uses two front wheels or two rear wheels as drive wheels, and is connected to a power system of the vehicle. The power system can calculate the torque required by the front axle of the vehicle in real time according to signals such as the torque of the whole vehicle engine, an accelerator pedal, a gear, a steering wheel angle and the like, and the transfer case distributes the torque to the two driving wheels so as to drive the vehicle to run.

If the depth of the first accelerator pedal is smaller than or equal to the first depth threshold, the vehicle is not in a fierce driving scene, namely, the vehicle is in a normal driving scene, and at the moment, the driving requirement of the vehicle can be met by the two-wheel driving mode, so that the control unit can control the transfer case to work in the two-wheel driving mode. Because the vehicle only drives and controls two driving wheels, the transfer case does not need to adjust torque for the speed difference between the front wheel and the rear wheel, so that unnecessary slipping of the friction plate is reduced.

In the embodiment of the application, the first depth threshold value of the accelerator pedal corresponding to the first vehicle speed is determined by acquiring the current first vehicle signal of the vehicle, and if the first depth threshold value of the accelerator pedal is smaller than or equal to the first depth threshold value, the vehicle is in a normal running state, and the transfer case is controlled to work in a two-wheel driving mode at the moment, so that unnecessary increase of sliding friction plates caused by four-wheel driving intervention is avoided, and the power waste and the fuel consumption of the vehicle are reduced.

Accordingly, in other embodiments, if the first accelerator pedal depth is greater than the first depth threshold, which indicates that the vehicle is in a heavy driving scenario, the control unit may control the transfer case to operate in the four-wheel drive mode in order to ensure that the vehicle can release the off-road performance to meet the acceleration demand.

Wherein the four-wheel drive mode is a four-wheel drive mode of operation. As shown in fig. 3, in the four-wheel drive system of the wheels in the working mode, the control unit can calculate the required torque in real time according to the vehicle signals such as the whole vehicle engine torque signal, the accelerator pedal signal, the gear signal, the vehicle speed signal, the brake anti-lock system (Antilock Brake System, ABS)/the vehicle body electronic stability system (Electronic Stability Program, ESP) signal, the steering wheel angle signal, the driving mode signal and the like, and control the transfer case to output to the four wheels so as to drive the vehicle to run.

Specifically, the first vehicle signal may further include a steering wheel angle of the vehicle, where the steering wheel angle is a rotation angle of the steering wheel of the vehicle, and the steering wheel angle sensor may collect the steering wheel angle. Accordingly, in some embodiments of the present application, the controlling the transfer case to operate in the four-wheel drive mode may include: and determining initial four-wheel drive torque according to the steering wheel angle and the first accelerator pedal depth, and controlling the transfer case to start four-wheel drive according to the initial four-wheel drive torque.

The initial four-wheel drive torque is a loading value of four-wheel drive torque, and the four-wheel drive torque refers to a motor torque value required by four wheels.

In an embodiment of the present application, the initial four-wheel drive torque may be inversely related to the steering wheel angle and positively related to the first accelerator pedal depth. That is, the smaller the angle of the steering wheel angle, the deeper the first accelerator pedal depth, the greater the initial four-wheel drive torque; the larger the angle of the steering wheel angle, the shallower the first accelerator pedal depth, the smaller the initial four-wheel drive torque. Therefore, sufficient power can be provided for the vehicle to accelerate, and meanwhile, the steering safety is guaranteed.

In practical application, the applicant researches that the front wheel speed and the rear wheel speed cannot be ensured to be absolutely consistent when the vehicle runs, the generation of speed difference between the front wheel and the rear wheel can be restrained when the torque of the four-wheel drive system is loaded, if the four-wheel drive torque is reduced to 0 in the acceleration process, the restraint between the front axle and the rear axle is suddenly opened, the vehicle runs, and the problems of noise, vibration and harshness (Noise, vibration, harshness, NVH) of the whole vehicle are caused.

To address this issue, in some embodiments of the present application, after controlling the transfer case to begin four-wheel drive with the initial four-wheel drive torque, the control unit may re-acquire the vehicle signal to obtain a second vehicle signal, where the second vehicle signal is the re-acquired vehicle signal, including the second vehicle speed and the second accelerator pedal depth of the vehicle. At this time, if the second accelerator pedal depth is greater than zero, which indicates that the vehicle is still accelerating, the control unit may adjust the initial four-wheel drive torque according to the second vehicle speed, so as to control the transfer case to perform four-wheel drive according to the adjusted four-wheel drive torque, and re-perform acquisition of the vehicle signal until the accelerator pedal depth of the vehicle is zero, and adjust the four-wheel drive torque to zero.

More specifically, as the vehicle speed increases, the control unit may adjust the initial four-wheel drive torque, correspondingly reduce the four-wheel drive torque according to the increase of the vehicle speed, then re-acquire the vehicle signal, continuously reduce the four-wheel drive torque according to the increase of the vehicle speed, and before the depth of the accelerator pedal of the vehicle is zero, the four-wheel drive torque remains greater than zero until the depth of the accelerator pedal of the vehicle is zero, which indicates that the vehicle stops accelerating, and may adjust the four-wheel drive torque to zero, thereby avoiding the vehicle NVH problem caused by that the torque is being output and the four-wheel drive torque suddenly drops to zero in the accelerating process.

Because the power required by the vehicle is larger during starting, before the first depth threshold value of the accelerator pedal corresponding to the first vehicle speed is determined, if the first vehicle speed is zero, the control unit can control the transfer case to work in a four-wheel drive mode, so that the transfer case can provide larger power for starting the vehicle through four-wheel drive.

Accordingly, if the first vehicle speed is greater than zero, the control unit may execute steps S202 to S203.

Specifically, the control unit may obtain a plurality of preset speed intervals, where each speed interval corresponds to a different depth threshold of the accelerator pedal, and takes a depth threshold of the accelerator pedal corresponding to a first speed interval where the first vehicle speed is located as a first depth threshold.

For example, referring to the following table, the driving control process of the vehicle by the control unit may be divided into five logic blocks.

The logic block a corresponds to the condition that the first vehicle speed is 0, and at this time, the transfer case works in a four-wheel drive mode and loads four-wheel drive torque no matter the depth of the accelerator pedal.

The logic block B corresponds to a first speed interval (0, 10 kph) and corresponds to a depth threshold value of 10%, when an accelerator pedal signal is less than or equal to 10%, the vehicle is judged to be in a creeping state, the four-wheel drive torque is not loaded, the transfer case works in a two-wheel drive mode, if the accelerator pedal signal is more than 10%, the vehicle is judged to be in a creeping acceleration state, the four-wheel drive torque is loaded, and the transfer case works in a four-wheel drive mode.

The logic block C corresponds to a second speed interval (10 kph,50 kph) and corresponds to a depth threshold value of 40%, when the accelerator pedal signal is less than or equal to 40%, the vehicle is judged to be in a low-speed running state, the four-wheel drive torque is not loaded, the transfer case works in a two-wheel drive mode, if the accelerator pedal signal is more than 40%, the vehicle is judged to be in a low-speed overtaking state, the four-wheel drive torque is loaded, and the transfer case works in a four-wheel drive mode.

The logic block D corresponds to a second speed interval (50 kph,100 kph) and corresponds to a depth threshold value of 55 percent, when the accelerator pedal signal is less than or equal to 55 percent, the vehicle is judged to be in a medium-speed running state, the four-wheel drive torque is not loaded, the transfer case works in a two-wheel drive mode, if the accelerator pedal signal is more than 55 percent, the vehicle is judged to be in a medium-speed overtaking state, the four-wheel drive torque is loaded, and the transfer case works in a four-wheel drive mode.

The logic block E corresponds to a second speed interval (100 kph, ++ infinity ], and the corresponding depth threshold value is 70%), when the accelerator pedal signal is less than or equal to 70%, the vehicle is judged to be in a high-speed running state, the four-wheel drive torque is not loaded, the transfer case works in a two-wheel drive mode, if the accelerator pedal signal is more than 70%, the vehicle is judged to be in a high-speed overtaking state, the four-wheel drive torque is loaded, and the transfer case works in a four-wheel drive mode.

It should be understood that the speed intervals and the depth threshold values corresponding to the logic blocks B to E are only examples, and specific values thereof may be adjusted according to actual situations (such as vehicle types, load information, etc.) in practical applications.

After controlling the transfer case to operate in the two-wheel drive mode or in the four-wheel drive mode, the control unit may also resume acquisition of the vehicle signal to confirm whether to switch between the aforementioned logic blocks.

Specifically, the control unit may re-acquire the vehicle signal to obtain a third vehicle signal, where the third vehicle signal may include a third vehicle speed and a third accelerator pedal depth of the vehicle. And if the third vehicle speed is in other speed intervals except the first speed interval and the depth of the third accelerator pedal is zero, determining a second depth threshold corresponding to the third vehicle speed so as to carry out driving control on the vehicle again.

Correspondingly, if the depth of the third accelerator pedal is larger than zero, the transfer case is controlled to continuously work according to the original driving mode until the depth of the re-acquired accelerator pedal is zero.

That is, the control unit needs to switch between the logic blocks B to E according to the vehicle speed when the depth of the accelerator pedal is zero, so that the execution confusion among the logic blocks caused by the vehicle speed change can be prevented, and the switching among the logic blocks is performed after the torque loading is completely executed and released, thereby being beneficial to improving the stability of the driving control.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders in accordance with the application.

Fig. 4 is a schematic structural diagram of a driving control device 400 of a vehicle according to an embodiment of the present application, where the driving control device 400 of the vehicle is configured on a control unit of a transfer case.

Specifically, the driving control apparatus 400 of the vehicle may include:

an obtaining unit 401, configured to obtain a current first vehicle signal of the vehicle, where the first vehicle signal includes a first vehicle speed and a first accelerator pedal depth of the vehicle;

a determining unit 402, configured to determine a first depth threshold of an accelerator pedal corresponding to the first vehicle speed;

and a driving control unit 403, configured to control the transfer case to operate in a two-wheel driving mode if the first accelerator pedal depth is less than or equal to the first depth threshold.

In some embodiments of the present application, the driving control unit 403 may be specifically configured to: and if the first accelerator pedal depth is larger than the first depth threshold value, controlling the transfer case to work in a four-wheel drive mode.

In some embodiments of the application, the first vehicle signal may further comprise a steering wheel angle of the vehicle; the drive control unit 403 may be specifically configured to: determining an initial four-wheel drive torque according to the steering wheel angle and the first accelerator pedal depth; and controlling the transfer case to start four-wheel drive according to the initial four-wheel drive torque.

In some embodiments of the present application, the driving control unit 403 may be specifically configured to: re-acquiring a vehicle signal to obtain a second vehicle signal, wherein the second vehicle signal comprises a second vehicle speed and a second accelerator pedal depth of the vehicle; and if the depth of the second accelerator pedal is greater than zero, adjusting the initial four-wheel drive torque according to the second vehicle speed so as to control the transfer case to perform four-wheel drive according to the adjusted four-wheel drive torque, and re-acquiring vehicle signals until the depth of the accelerator pedal of the vehicle is zero, and adjusting the four-wheel drive torque to zero.

In some embodiments of the present application, the determining unit 402 may be specifically configured to: acquiring a plurality of preset speed intervals, wherein each speed interval corresponds to a different depth threshold value of an accelerator pedal; and taking a depth threshold value of an accelerator pedal corresponding to a first speed interval where the first vehicle speed is located as the first depth threshold value.

In some embodiments of the present application, the driving control unit 403 may be specifically configured to: re-acquiring a vehicle signal to obtain a third vehicle signal, wherein the third vehicle signal comprises a third vehicle speed and a third accelerator pedal depth of the vehicle; and if the third vehicle speed is in other speed intervals except the first speed interval and the depth of the third accelerator pedal is zero, determining a second depth threshold corresponding to the third vehicle speed so as to carry out driving control on the transfer case again.

In some embodiments of the present application, the driving control unit 403 may be specifically configured to: and if the first vehicle speed is zero, controlling the transfer case to work in a four-wheel drive mode.

It should be noted that, for convenience and brevity of description, the specific working process of the driving control device 400 of the vehicle may refer to the corresponding process of the method described in fig. 1 to 3, and will not be described herein again.

Fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present application. Specifically, the electronic device 5 may include: a processor 50, a memory 51 and a computer program 52, such as a drive control program for a vehicle, stored in said memory 51 and executable on said processor 50.

Wherein the processor 50 may refer to the control unit of the transfer case described previously. The processor 50, when executing the computer program 52, implements the steps in the drive control method embodiment of each vehicle described above, such as steps S201 to S203 shown in fig. 2. Alternatively, the processor 50 implements the functions of the modules/units in the above-described device embodiments when executing the computer program 52, such as the functions of the acquisition unit 401, the determination unit 402, and the drive control unit 403 shown in fig. 4.

The computer program may be divided into one or more modules/units which are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program in the electronic device.

For example, the computer program may be split into: an acquisition unit, a determination unit, and a drive control unit. The specific functions of each unit are as follows: an acquisition unit configured to acquire a current first vehicle signal of the vehicle, where the first vehicle signal includes a first vehicle speed and a first accelerator pedal depth of the vehicle; a determining unit configured to determine a first depth threshold of an accelerator pedal corresponding to the first vehicle speed; and the driving control unit is used for controlling the transfer case to work in a two-wheel driving mode if the depth of the first accelerator pedal is smaller than or equal to the first depth threshold value.

The electronic device may include, but is not limited to, a processor 50, a memory 51. It will be appreciated by those skilled in the art that fig. 5 is merely an example of an electronic device and is not meant to be limiting, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the electronic device may further include an input-output device, a network access device, a bus, etc.

The processor 50 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 51 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 51 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device. Further, the memory 51 may also include both an internal storage unit and an external storage device of the electronic device. The memory 51 is used for storing the computer program and other programs and data required by the electronic device. The memory 51 may also be used to temporarily store data that has been output or is to be output.

It should be noted that, for convenience and brevity of description, the structure of the electronic device may refer to a specific description of the structure in the method embodiment, which is not repeated herein.

Fig. 6 is a schematic diagram of a vehicle according to an embodiment of the present application. In particular, the vehicle 6 may be integrated with a processor 60 for performing the method shown in fig. 2.

Specifically, the vehicle 6 may include: a processor 60, a memory 61 and a computer program 62 stored in the memory 61 and executable on the processor 60, such as a drive control program for a vehicle. The processor 60, when executing the computer program 62, implements the steps in the drive control method embodiment of each vehicle described above, such as steps S201 to S203 shown in fig. 2. Alternatively, the processor 60 implements the functions of the modules/units in the above-described device embodiments when executing the computer program 62, such as the functions of the acquisition unit 401, the determination unit 402, and the drive control unit 403 shown in fig. 4.

It should be noted that, for convenience and brevity of description, the structure of the vehicle may refer to the description in the embodiment of the electronic device, and the specific description of the structure in the embodiment of the method, which is not described herein again.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. A drive control method of a vehicle, characterized by a control unit applied to a transfer case, comprising:

acquiring a current first vehicle signal of the vehicle, wherein the first vehicle signal comprises a first vehicle speed and a first accelerator pedal depth of the vehicle;

determining a first depth threshold of an accelerator pedal corresponding to the first vehicle speed;

and if the first accelerator pedal depth is smaller than or equal to the first depth threshold value, controlling the transfer case to work in a two-wheel driving mode.

2. The drive control method of a vehicle according to claim 1, characterized by further comprising, after said determining a first depth threshold of an accelerator pedal corresponding to said first vehicle speed:

and if the first accelerator pedal depth is larger than the first depth threshold value, controlling the transfer case to work in a four-wheel drive mode.

3. The drive control method of a vehicle according to claim 2, characterized in that the first vehicle signal further includes a steering wheel angle of the vehicle;

the controlling the transfer case to operate in a four-wheel drive mode includes:

determining an initial four-wheel drive torque according to the steering wheel angle and the first accelerator pedal depth;

and controlling the transfer case to start four-wheel drive according to the initial four-wheel drive torque.

4. The drive control method of a vehicle according to claim 2, characterized by, after said controlling said transfer to start four-wheel drive in accordance with said initial four-wheel drive torque, comprising:

re-acquiring a vehicle signal to obtain a second vehicle signal, wherein the second vehicle signal comprises a second vehicle speed and a second accelerator pedal depth of the vehicle;

and if the depth of the second accelerator pedal is greater than zero, adjusting the initial four-wheel drive torque according to the second vehicle speed so as to control the transfer case to perform four-wheel drive according to the adjusted four-wheel drive torque, and re-acquiring vehicle signals until the depth of the accelerator pedal of the vehicle is zero, and adjusting the four-wheel drive torque to zero.

5. The drive control method of a vehicle according to any one of claims 1 to 4, characterized in that the determining a first depth threshold of an accelerator pedal corresponding to the first vehicle speed includes:

acquiring a plurality of preset speed intervals, wherein each speed interval corresponds to a different depth threshold value of an accelerator pedal;

and taking a depth threshold value of an accelerator pedal corresponding to a first speed interval where the first vehicle speed is located as the first depth threshold value.

6. The drive control method of a vehicle according to claim 5, characterized in that after controlling the transfer to operate in a two-wheel drive mode or in a four-wheel drive mode, the drive control method of a vehicle further comprises:

re-acquiring a vehicle signal to obtain a third vehicle signal, wherein the third vehicle signal comprises a third vehicle speed and a third accelerator pedal depth of the vehicle;

and if the third vehicle speed is in other speed intervals except the first speed interval and the depth of the third accelerator pedal is zero, determining a second depth threshold corresponding to the third vehicle speed so as to carry out driving control on the transfer case again.

7. The drive control method of a vehicle according to any one of claims 1 to 4, characterized by further comprising, before the determination of the first depth threshold of the accelerator pedal corresponding to the first vehicle speed:

and if the first vehicle speed is zero, controlling the transfer case to work in a four-wheel drive mode.

8. A drive control device of a vehicle, characterized by a control unit disposed in a transfer case, the drive control device of the vehicle comprising:

an acquisition unit configured to acquire a current first vehicle signal of the vehicle, where the first vehicle signal includes a first vehicle speed and a first accelerator pedal depth of the vehicle;

a determining unit configured to determine a first depth threshold of an accelerator pedal corresponding to the first vehicle speed;

and the driving control unit is used for controlling the transfer case to work in a two-wheel driving mode if the depth of the first accelerator pedal is smaller than or equal to the first depth threshold value.

9. A computer-readable storage medium storing a computer program, characterized in that the computer program when executed by a processor realizes the steps of the drive control method of a vehicle according to any one of claims 1 to 7.

10. A vehicle comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, carries out the steps of the drive control method of a vehicle according to any one of claims 1 to 7.