CN114810985A - Control method and device of differential lock, computer medium, electronic equipment and vehicle - Google Patents

Control method and device of differential lock, computer medium, electronic equipment and vehicle Download PDF

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Publication number
CN114810985A
CN114810985A CN202110797144.4A CN202110797144A CN114810985A CN 114810985 A CN114810985 A CN 114810985A CN 202110797144 A CN202110797144 A CN 202110797144A CN 114810985 A CN114810985 A CN 114810985A
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China
Prior art keywords
differential lock
electromagnetic coil
vehicle
current
condition
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CN202110797144.4A
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Chinese (zh)
Inventor
黄旭宁
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202110797144.4A priority Critical patent/CN114810985A/en
Publication of CN114810985A publication Critical patent/CN114810985A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H2048/204—Control of arrangements for suppressing differential actions
    • F16H2048/205—Control of arrangements for suppressing differential actions using the steering as a control parameter

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The present disclosure relates to a method, an apparatus, a computer medium, an electronic device, and a vehicle for controlling a differential lock, the method including: acquiring running state information of the vehicle under the condition that the differential lock is locked and an electromagnetic coil of the current differential lock works with starting current; under the condition that the running state information meets a preset maintaining condition, controlling the electromagnetic coil to work by maintaining current so as to keep the differential lock locked, wherein the maintaining current is smaller than starting current; and if the target wheel rotating direction corresponding to the differential lock is determined to be changed, controlling the electromagnetic coil to work by starting current. Therefore, the differential lock can be continuously locked, and the heat productivity of the electromagnetic coil can be reduced, so that the ablation of the electromagnetic coil is reduced. Meanwhile, if the rotating direction of the target wheel corresponding to the differential lock is changed, the electromagnetic coil is controlled to work by starting current, and the condition that the differential lock is invalid due to the change of the rotating direction of the target wheel can be reduced.

Description

Control method and device of differential lock, computer medium, electronic equipment and vehicle
Technical Field
The present disclosure relates to the field of vehicle technologies, and in particular, to a method and an apparatus for controlling a differential lock, a computer medium, an electronic device, and a vehicle.
Background
The differential mechanism can allow the left wheel and the right wheel to rotate at different speeds, but when one wheel spins, the other wheel on a good road surface cannot obtain torque, and the automobile loses the driving power. To avoid this, if the two wheels are connected, the power can be transmitted to at least the other wheel, so that the vehicle can obtain the power for running, thereby getting rid of the trouble, and therefore, a differential lock is needed to be arranged.
After the drive axle differential lock is electrified by virtue of the electromagnetic coil, the electromagnetic coil attracts the cam disc by virtue of electromagnetic force, the cam disc pushes the push rod to slide along the axial direction of the cam disc along with the rotation of the differential, the push rod pushes the locking ring to displace so as to enable the internal spline of the locking ring to be matched and locked with the external spline of the half axle gear, the external spline of the locking ring is matched with the matching groove of the differential shell, and at the moment, the locking ring locks the left half axle gear and the differential shell into a whole, so that the whole differential is locked.
However, when a driver uses the vehicle off-road, the driver is on the off-road or passes through the vehicle for a long time, the electromagnetic coil is electrified for a long time, heat is generated inside the electromagnetic coil, the electromagnetic coil is ablated, the function of the differential lock fails after ablation, the vehicle is poor in escaping capability after failure, and the problem that the vehicle cannot escape when the vehicle is on the off-road is solved.
Disclosure of Invention
An object of the present disclosure is to provide a method, an apparatus, a computer medium, an electronic device, and a vehicle for controlling a differential lock, so as to reduce the amount of heat generated during continuous operation of an electromagnetic coil.
In order to achieve the above object, a first aspect of the present disclosure provides a control method of a differential lock, including:
acquiring running state information of a vehicle under the condition that a differential lock is locked and an electromagnetic coil of the differential lock works with starting current currently;
under the condition that the running state information meets a preset maintaining condition, controlling the electromagnetic coil to work by maintaining current so as to enable the differential lock to keep locked, wherein the maintaining current is smaller than the starting current;
and if the target wheel rotating direction corresponding to the differential lock is determined to be changed, controlling the electromagnetic coil to work with the starting current.
Optionally, the operating state information includes at least one of:
the vehicle speed information of the vehicle, the wheel speed information of each target wheel and the working time length information of the differential lock.
Optionally, the running state information is the vehicle speed information, the wheel speed information of each target wheel, and the working duration information;
correspondingly, the maintaining conditions are as follows: the vehicle speed information represents that the vehicle speed of the vehicle is greater than a preset speed threshold, the respective wheel speed information of the target wheels represents that the wheel speed difference value of the two target wheels is smaller than a preset difference threshold, and the working duration information represents that the working duration of the differential lock exceeds a preset duration threshold.
Optionally, the method further comprises:
and controlling the electromagnetic coil to work with the starting current to lock the differential lock in response to a starting command for indicating the locking of the differential lock.
Optionally, the holding current is determined according to a model of the differential lock.
A second aspect of the present disclosure provides a control device of a differential lock, including:
the acquisition module is configured to acquire running state information of a vehicle under the condition that a differential lock is locked and an electromagnetic coil of the differential lock works at a starting current;
the control module is configured to control the electromagnetic coil to work with a maintaining current to enable the differential lock to keep locked under the condition that the running state information meets a preset maintaining condition, wherein the maintaining current is smaller than the starting current;
the control module is further configured to control the electromagnetic coil to operate with the starting current if it is determined that the target wheel rotation direction corresponding to the differential lock is changed.
Optionally, the control module is further configured to:
and controlling the electromagnetic coil to work with the starting current to lock the differential lock in response to a starting command for indicating the locking of the differential lock.
A third aspect of the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is able to carry out the steps of the method provided by the first aspect of the present disclosure.
A fourth aspect of the present disclosure provides an electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method provided by the first aspect of the present disclosure.
A fifth aspect of the present disclosure provides a vehicle including a vehicle speed indicator and the electronic apparatus provided in the fourth aspect of the present disclosure.
Through the technical scheme, the running state information of the vehicle is acquired under the condition that the differential lock is locked and the battery coil works with the starting current, and the current states of the vehicle and the differential lock can be determined through the running state information. In the case of operating state information which satisfies the predefined holding condition, the solenoid can now be switched to a lower holding current. The solenoid is thus controlled to operate at a holding current that is less than the starting current to keep the differential lock locked. Therefore, the differential lock can be continuously locked, and the heat productivity of the electromagnetic coil can be reduced, so that the ablation of the electromagnetic coil is reduced. Meanwhile, if the rotating direction of the target wheel corresponding to the differential lock is changed, the electromagnetic coil is controlled to work by starting current, so that the condition that the differential lock is invalid due to the change of the rotating direction of the target wheel can be reduced.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a method of controlling a differential lock according to an exemplary embodiment of the present disclosure;
FIG. 2 is a flow chart illustrating a method of controlling a differential lock according to another exemplary embodiment of the present disclosure;
FIG. 3 is a block diagram of a control device of a differential lock shown in an exemplary embodiment of the present disclosure;
fig. 4 is a block diagram of an electronic device shown in an exemplary embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, the terms of orientation such as "front and rear" are generally defined according to the direction of the vehicle in a normal driving state, with the front direction being the front and the rear direction being the rear. The terms "first," "second," and the like, are used herein to distinguish one element from another, not specifically sequential or important. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.
A possible application scenario of the present disclosure is first explained.
The differential lock may include at least a housing, a left side half gear, a right side half gear, a return spring, a planetary gear set, a locking ring, a push rod, a cam plate, and a solenoid.
Two ends of the push rod are respectively abutted with the cam disc and the locking ring, a plurality of V-shaped grooves are arranged at the edge part of the cam disc abutted with the push rod, each V-shaped groove is recessed along the axial direction of the cam disc, and the V-shaped grooves are sequentially arranged along the circumferential direction of the cam disc. The planetary gear set is engaged with the left side axle gear and the right side axle gear.
When the differential lock is closed, namely the electromagnetic coil is not electrified, the right side half axle gear, the shell, the locking ring, the push rod and the cam disc rotate together. The right side half shaft gear transmits power to the left side half shaft gear through the planetary gear set, and the left side half shaft gear and the right side half shaft gear achieve a differential function through the planetary gear set.
When the differential lock is started (locked), the electromagnetic coil is electrified and adsorbs the cam disc, and at the moment, the cam disc and the shell have a rotation speed difference. The push rod and the cam disc which rotate integrally with the shell slide relatively, the push rod moves axially along the locking ring under the action of the inclined plane of the V-shaped groove on the cam, the push rod pushes the locking ring to move towards the left side half shaft gear against the elastic force of the return spring, the internal spline of the locking ring is matched and locked with the external spline of the half shaft gear, and the external spline of the locking ring is matched with the matching groove of the differential shell to connect the left side half shaft gear and the shell into a whole so as to realize differential locking. Meanwhile, the push rod is still abutted against the inclined plane of the V-shaped groove at the moment, and the differential mechanism can keep a locking state on the basis of electrifying the electromagnetic coil.
As described in the background technology, when a driver uses the vehicle for off-road, the driver can move on the off-road or pass through the vehicle for a long time, the electromagnetic coil is electrified for a long time, heat is generated inside the electromagnetic coil, the electromagnetic coil is ablated, the function of the differential lock fails after ablation, the vehicle is poor in escaping ability after failure, and the problem that the vehicle cannot escape when the vehicle is on the off-road is solved.
To reduce the potential burn-out problem of the solenoid, after the solenoid is operated at a higher activation current and the differential lock is locked, the current in the solenoid of the differential lock may be reduced so that the push rod remains in abutment against the inclined surface of the V-shaped groove (the push rod remains in a tendency to slide along the inclined surface of the V-shaped groove to the upper side of the inclined surface of the V-shaped groove). Therefore, when the differential lock keeps locking, the heating of the electromagnetic coil can be reduced, and the problem of the ablation of the electromagnetic coil is improved.
However, when the rotation direction of the wheel is changed, the right side axle gear, the shell and the push rod rotate reversely, the push rod slides to the bottom of the V-shaped groove along the inclined surface of the V-shaped groove, and the locking ring slides to one side of the right side axle gear under the action of the return spring. To achieve the relocking of the differential lock, the push rod is required to slide along the other inclined surface of the V-shaped groove from the bottom of the V-shaped groove to push the locking ring to lock the left side axle gear and the housing against the elastic force of the return spring. However, at this time, the current in the electromagnetic coil is small, the attraction force of the electromagnetic coil to the cam disc is small, and the cam disc cannot push the push rod to realize the locking of the differential. At this time, the differential lock is invalid, so that the difficulty removing capability of the vehicle is poor, and the normal use of a user is influenced.
Based on this, the present disclosure provides a control method of a differential lock. Fig. 1 is a flowchart illustrating a method of controlling a differential lock according to an exemplary embodiment of the present disclosure, and referring to fig. 1, the method may include steps S11 to S13.
In step S11, the running state information of the vehicle is acquired with the differential lock locked and the solenoid of the current differential lock operated with the starting current.
By means of the operating state information, the current state of the vehicle and the differential lock can be determined.
In step S12, in the case where the operating state information satisfies the preset maintaining condition, the solenoid is controlled to operate with a maintaining current, which is smaller than the starting current, so that the differential lock keeps locked.
If the running state information meets the preset maintaining condition, the electromagnetic coil is controlled to work at the maintaining current smaller than the starting current so as to keep the differential lock locked. Therefore, the differential lock can be continuously locked, and the heat productivity of the electromagnetic coil can be reduced, so that the ablation of the electromagnetic coil is reduced.
In step S13, if it is determined that the target wheel rotation direction corresponding to the differential lock is changed, the electromagnetic coil is controlled to operate with the start current.
With reference to the foregoing, when the direction of rotation of the target wheel is changed (e.g., two target wheels may be drivingly connected to the left side gear and the right side gear of the differential), the push rod slides along the slope of the cam plate V-groove toward the bottom of the V-groove, and after the push rod slides to the bottom of the V-groove, to achieve the re-locking of the differential, the electromagnetic force provided by the solenoid operating with a holding current may not be sufficient to achieve the locking of the differential.
Therefore, the electromagnetic coil is controlled to work by starting current, and the electromagnetic coil can generate larger electromagnetic force on the cam disc so that the push rod pushes the locking ring to realize the locking of the differential mechanism under the action of the inclined surface of the V-shaped groove of the cam disc.
By the scheme of the embodiment, the heating value of the electromagnetic coil can be reduced, so that the ablation condition of the electromagnetic coil is reduced; meanwhile, when the rotating direction of the target wheel is changed, the differential lock can be kept locked, so that the differential lock is kept in a locked state, and the possibility of failure of the differential lock is reduced.
For example, the rotation direction of the target wheel may be obtained by a wheel speed sensor on the target wheel. Alternatively, the change in the direction of rotation of the target wheel may be determined upon receiving a shift command instructing the transmission to shift between a forward gear and a reverse gear.
Illustratively, the operational status information may include at least one of: vehicle speed information of the vehicle, wheel speed information of each target wheel, and operating time length information of the differential lock.
From the vehicle speed information, the current state of the vehicle may be determined, for example, the current state of the vehicle may include a driving state and a non-driving state. The current vehicle speed can be determined through the vehicle speed information, and then the current state of the vehicle is determined according to the vehicle speed. For example, the vehicle speed information may be obtained by a vehicle speed sensor on the vehicle. Through the respective wheel speed information of the target wheels, the wheel speed difference of the two target wheels can be determined, and then whether the differential is locked or not can be verified according to the wheel speed difference. For example, the wheel speed information may be obtained by a wheel speed sensor provided on the target wheel. The working time of the differential lock can be determined through the working time information of the differential lock, and when the working time of the differential lock is longer, the stable working of the differential lock can be determined.
For example, in a scene that the vehicle is getting out of trouble, if the vehicle speed information indicates that the vehicle speed of the current vehicle is greater than the preset vehicle speed, it can be determined that the vehicle is in a driving state and the differential lock works stably. Therefore, if the vehicle speed information meets a preset maintaining condition (for example, the vehicle speed information indicates that the current vehicle speed is greater than the preset vehicle speed), the solenoid coil may be controlled to switch from the starting current to the maintaining current.
For example, the running state information may be vehicle speed information, wheel speed information of each of the target wheels, and operating time period information; correspondingly, the maintenance conditions may be: the vehicle speed information represents that the vehicle speed of the vehicle is greater than a preset speed threshold, the respective wheel speed information of the target wheels represents that the wheel speed difference value of the two target wheels is smaller than a preset difference threshold, and the working duration information represents that the working duration of the differential lock exceeds a preset duration threshold.
According to the scheme, when the vehicle speed information represents that the vehicle speed of the vehicle is greater than a preset speed threshold value, the wheel speed difference value of two target wheels represented by the respective wheel speed information of the target wheels is smaller than a preset difference threshold value, and the working time length of the differential lock represented by the working time length information exceeds a preset time length threshold value, the vehicle is in a driving state, the differential is locked, and the differential works stably. The solenoid can now be controlled to switch from the start-up current to the holding current.
Illustratively, the method may further comprise: in response to an activation command indicating the locking of the differential lock, the solenoid is controlled to operate with an activation current to lock the differential lock.
It can be seen that the case where the differential lock is locked and the electromagnetic coil of the current differential lock is operated with the activation current in step S11 may include the case where the electromagnetic coil is controlled to be operated with the activation current in response to the activation command of the differential lock to lock the differential lock; the control device may also include a case where the rotation direction of the target wheel is changed in a case where the solenoid is operated with the holding current, and the solenoid is switched from the holding current to the starting current.
Illustratively, the holding current is determined according to the model of the differential lock. For example, different models of differential locks can be calibrated, and the current value obtained by calibration is used as the holding current of the differential lock of the model.
For example, after the solenoid is switched to the holding current, the wheel speed difference of the two target wheels may be detected, and if the wheel speed difference exceeds a preset maximum difference threshold, it may be determined that the differential lock is disabled. Therefore, the solenoid can be controlled to switch from the holding current to the starting current to re-achieve the locking of the differential lock. The operating state information of the vehicle may then be acquired, and the solenoid may be controlled to switch from the start current to the maintenance current if the operating state information of the vehicle satisfies the maintenance condition.
Therefore, the differential lock can be ensured to be locked continuously, and the condition that the differential lock is invalid is reduced.
Fig. 2 is a flowchart illustrating a control method of a differential lock according to another exemplary embodiment of the present disclosure. Referring to fig. 2, the method may include steps S21 through S26.
For example, if the current road condition is poor during the driving of the vehicle, in order to make the vehicle have better passing ability, the driver may send an activation command for instructing locking of the differential lock through a differential lock button on the vehicle, and in step S21, an ECU (Electronic Control Unit, english) may receive and respond to the activation command to Control an electromagnetic coil of the differential lock to operate with an activation current, so as to lock the differential.
In step S22, the ECU may acquire running state information of the vehicle, which may include vehicle speed information of the vehicle, wheel speed information of each of the target wheels, and operating period information of the differential lock.
In step S23, the ECU may determine whether the operating state information satisfies a preset maintenance condition, and generate a first determination result. For example, the maintenance conditions may include: the vehicle speed information represents that the vehicle speed of the vehicle is greater than a preset speed threshold, the respective wheel speed information of the target wheels represents that the wheel speed difference value of the two target wheels is smaller than a preset difference threshold, and the working duration information represents that the working duration of the differential lock exceeds a preset duration threshold.
In the case where the first determination result is yes, that is, when the operation state information satisfies the preset maintaining condition, step S24 is executed to control the solenoid to operate with the maintaining current.
Therefore, the differential lock can be continuously locked, and the heat productivity of the electromagnetic coil can be reduced, so that the ablation of the electromagnetic coil is reduced.
In step S25, the ECU determines whether the target wheel turning direction corresponding to the differential lock has changed, and generates a second determination result. If the second determination result is yes, step S26 is executed to control the solenoid to operate with the start current.
Thus, the situation that the differential lock is invalid due to the change of the rotating direction of the target wheel can be reduced.
It should be noted that each threshold related to the present disclosure may be calibrated in advance, and the value of each threshold is not limited.
Fig. 3 is a block diagram of a control device of a differential lock shown in an exemplary embodiment of the present disclosure. Referring to fig. 3, based on the same inventive concept, the present disclosure also provides a control apparatus 400 of a differential lock, which may include an obtaining module 401 and a control module 402.
The obtaining module 401 may be configured to obtain the running state information of the vehicle in a case where the differential lock is locked and an electromagnetic coil of the current differential lock is operated with a start current;
the control module 402 may be configured to control the solenoid to operate with a holding current to keep the differential lock locked if the operation state information satisfies a preset holding condition, wherein the holding current is smaller than the starting current;
the control module 402 may be further configured to control the solenoid to operate with an activation current if it is determined that the target wheel rotation direction corresponding to the differential lock has changed.
According to the scheme, under the condition that the differential lock is locked and the battery coil works with the starting current, the running state information of the vehicle is obtained, and the current states of the vehicle and the differential lock can be determined through the running state information. In the case of operating state information which satisfies the predetermined holding condition, the solenoid can now be switched to a lower holding current. The solenoid is thus controlled to operate at a holding current that is less than the starting current to keep the differential lock locked. Therefore, the differential lock can be continuously locked, and the heat productivity of the electromagnetic coil can be reduced, so that the ablation of the electromagnetic coil is reduced. Meanwhile, if the rotating direction of the target wheel corresponding to the differential lock is changed, the electromagnetic coil is controlled to work by starting current, so that the condition that the differential lock is invalid due to the change of the rotating direction of the target wheel can be reduced.
Illustratively, the control module 402 may be further configured to: in response to an activation command indicating the locking of the differential lock, the solenoid is controlled to operate with an activation current to lock the differential lock.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a block diagram illustrating an electronic device 600 according to an example embodiment. As shown in fig. 4, the electronic device 600 may include: a processor 601 and a memory 602. The electronic device 600 may also include one or more of a multimedia component 603, an input/output (I/O) interface 604, and a communications component 605.
The processor 601 is configured to control the overall operation of the electronic device 600, so as to complete all or part of the steps in the control method of the differential lock. The memory 602 is used to store various types of data to support operation at the electronic device 600, such as instructions for any application or method operating on the electronic device 600 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 602 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 603 may include a screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 602 or transmitted through the communication component 605. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 604 provides an interface between the processor 601 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 605 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for executing the control method of the differential lock.
In another exemplary embodiment, a computer readable storage medium is also provided, which comprises program instructions, which when executed by a processor, implement the steps of the control method of the differential lock described above. For example, the computer readable storage medium may be the memory 602 including program instructions executable by the processor 601 of the electronic device 600 to perform the method for controlling the differential lock.
The present disclosure also provides a vehicle including the electronic device provided by the above embodiment.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A control method of a differential lock, comprising:
acquiring running state information of a vehicle under the condition that a differential lock is locked and an electromagnetic coil of the differential lock works with starting current currently;
under the condition that the running state information meets a preset maintaining condition, controlling the electromagnetic coil to work by maintaining current so as to enable the differential lock to keep locked, wherein the maintaining current is smaller than the starting current;
and if the target wheel rotating direction corresponding to the differential lock is determined to be changed, controlling the electromagnetic coil to work with the starting current.
2. The method of claim 1, wherein the operational status information comprises at least one of:
the vehicle speed information of the vehicle, the wheel speed information of each target wheel and the working time length information of the differential lock.
3. The method according to claim 2, characterized in that the running state information is the vehicle speed information, the wheel speed information of each of the target wheels, and the operating period information;
correspondingly, the maintaining conditions are as follows: the vehicle speed information represents that the vehicle speed of the vehicle is greater than a preset speed threshold, the respective wheel speed information of the target wheels represents that the wheel speed difference value of the two target wheels is smaller than a preset difference threshold, and the working duration information represents that the working duration of the differential lock exceeds a preset duration threshold.
4. The method according to any one of claims 1 to 3, further comprising:
and controlling the electromagnetic coil to work with the starting current to lock the differential lock in response to a starting command for indicating the locking of the differential lock.
5. The method according to any one of claims 1 to 3,
the maintaining current is determined according to the model of the differential lock.
6. A control device of a differential lock, characterized by comprising:
the acquisition module is configured to acquire running state information of a vehicle under the condition that a differential lock is locked and an electromagnetic coil of the differential lock works at a starting current;
the control module is configured to control the electromagnetic coil to work with a maintaining current to keep the differential lock locked under the condition that the running state information meets a preset maintaining condition, wherein the maintaining current is smaller than the starting current;
the control module is further configured to control the electromagnetic coil to operate with the starting current if it is determined that the target wheel rotation direction corresponding to the differential lock is changed.
7. The apparatus of claim 6, wherein the control module is further configured to:
and controlling the electromagnetic coil to work with the starting current to lock the differential lock in response to a starting command for indicating the locking of the differential lock.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, is able to carry out the steps of the method according to any one of claims 1 to 5.
9. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 5.
10. A vehicle characterized by comprising a differential lock and the electronic device of claim 9.
CN202110797144.4A 2021-07-14 2021-07-14 Control method and device of differential lock, computer medium, electronic equipment and vehicle Pending CN114810985A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024104242A1 (en) * 2022-11-15 2024-05-23 长城汽车股份有限公司 Vehicle and vehicle control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024104242A1 (en) * 2022-11-15 2024-05-23 长城汽车股份有限公司 Vehicle and vehicle control method

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