Electronic differential lock control method, device, medium and equipment

Abstract

The present disclosure relates to a control method, device, medium and equipment for an electronic differential lock. The method comprises: during the operation of a vehicle, if a self-help instruction triggered by a user is received, the current automatic unlocking control strategy of the electronic differential lock is controlled to be suspended, and the expert mode is entered, wherein in the automatic unlocking control strategy, if the speed of the vehicle reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state, and the initial state of the electronic differential lock in the expert mode is a closed state; in the expert mode, if a locking instruction triggered by a user is received, the electronic differential lock is controlled to enter a locked state, until a closing instruction triggered by the user is received, the electronic differential lock is controlled to enter a closed state. In this way, when the vehicle is stuck, the driver can actively control the electronic differential lock to enter a locked state to get the vehicle out of trouble.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic differential lock control, and in particular, to a method, device, medium and equipment for controlling an electronic differential lock. Background Art

[0002] The rear axle electronic differential lock is to add a locking mechanism (mostly a tooth-type structure) to the traditional open differential. It can control the electromagnetic coil to generate magnetic force through logical instructions, push the tooth gear sleeve to connect with the locking half-axle gear, lock the differential case and the half-axle into one, and make the differential lose its differential function. When the driver presses the control switch, he can collect signals from various sensors to determine the current vehicle status, make a judgment, output electrical signals, drive the coil, push the locking gear sleeve to generate displacement to lock the differential, make the vehicle lose its differential function, and transmit power to the effective wheel side to get the vehicle out of trouble.

[0003] Because the vehicle speed is obtained by dividing the sum of the left and right wheel speeds of the active drive axle by two, this speed is fine under normal vehicle driving conditions, but when the wheels slip on unpaved roads or the vehicle gets stuck, the calculated wheel speed will be inconsistent with the actual vehicle speed. When the vehicle encounters an unpaved road or gets stuck, after the rear axle differential lock is turned on, the speed increases quickly when the left and right wheels slip. When the speed exceeds 40km / h, for example, the electronic differential lock is automatically unlocked, but the actual speed does not reach this speed. After the differential lock is unlocked, the vehicle cannot get out of trouble. Summary of the invention

[0004] The purpose of the present disclosure is to provide a control method, device, medium and equipment for an electronic differential lock with good flexibility.

[0005] In order to achieve the above object, the present disclosure provides a control method for an electronic differential lock, the method comprising:

[0006] During the operation of the vehicle, if a self-help instruction triggered by a user is received, the current automatic unlocking control strategy of the electronic differential lock is controlled to be suspended, and the expert mode is entered, wherein in the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state, and the initial state of the electronic differential lock in the expert mode is a closed state;

[0007] In the expert mode, if a locking command triggered by a user is received, the electronic differential lock is controlled to enter a locked state, until a closing command triggered by a user is received, in which case the electronic differential lock is controlled to enter a closed state.

[0008] Optionally, the method further comprises:

[0009] In the expert mode, if an exit instruction triggered by a user is received, the electronic differential lock is controlled to exit the expert mode and is executed according to the automatic unlocking control strategy.

[0010] Optionally, the method further comprises:

[0011] During vehicle operation, if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, a prompt message is output, wherein the prompt message is used to prompt entry into the expert mode, wherein the vehicle speed is located and calculated through GPS.

[0012] Optionally, the method further comprises:

[0013] If the electronic differential lock exits the expert mode, the electronic differential lock is controlled to enter a closed state.

[0014] The present disclosure also provides a control device for an electronic differential lock, the device comprising:

[0015] A first control module, configured to control the suspension of the current automatic unlocking control strategy of the electronic differential lock and enter an expert mode if a self-help instruction triggered by a user is received during the operation of the vehicle, wherein in the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state, and the initial state of the electronic differential lock in the expert mode is a closed state;

[0016] The second control module is used for controlling the electronic differential lock to enter a locked state if a locking command triggered by a user is received in the expert mode, and controlling the electronic differential lock to enter a closed state when a closing command triggered by the user is received.

[0017] Optionally, the device further comprises:

[0018] The third control module is used to control the electronic differential lock to exit the expert mode and execute according to the automatic unlocking control strategy if an exit instruction triggered by the user is received in the expert mode.

[0019] Optionally, the device further comprises:

[0020] The fourth control module is used to output a prompt message during vehicle operation if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, wherein the prompt message is used to prompt entry into the expert mode, wherein the vehicle speed is located and calculated through GPS.

[0021] Optionally, the device further comprises:

[0022] The fifth control module is used to control the electronic differential lock to enter a closed state if the electronic differential lock exits the expert mode.

[0023] The present disclosure also provides a non-temporary computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method provided by the present disclosure when the program is executed by a processor.

[0024] The present disclosure also provides an electronic device, comprising:

[0025] a memory having a computer program stored thereon;

[0026] A processor is used to execute the computer program in the memory to implement the steps of the above method provided by the present disclosure.

[0027] Through the above technical solution, the electronic differential lock has an expert mode. If the driver is very familiar with the working principle, function and performance of each actuator unit of the vehicle, he can use the expert mode to actively control the state of the electronic differential lock. In this way, when the vehicle is stuck, the driver can actively control the electronic differential lock to enter the locked state to get the vehicle out of trouble, avoiding the situation where the electronic differential lock is automatically unlocked due to the detected vehicle speed reaching a certain value (but not actually reaching it), resulting in the vehicle being unable to get out of trouble, thereby enhancing the flexibility of the use of the electronic differential lock.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] Figure 1 is a flow chart of a control method of an electronic differential lock provided by an exemplary embodiment;

[0031] Figure 2 is a block diagram of a control device for an electronic differential lock provided by an exemplary embodiment;

[0032] Figure 3 It is a block diagram of an electronic device shown in an exemplary embodiment. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] Figure 1FIG. 1 is a flow chart of a control method of an electronic differential lock provided by an exemplary embodiment. Figure 1 As shown, the method may include the following steps:

[0035] Step S11, during the operation of the vehicle, if a self-service instruction triggered by the user is received, the current automatic unlocking control strategy of the electronic differential lock is controlled to be suspended and the expert mode is entered. In the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state. The initial state of the electronic differential lock in the expert mode is a closed state.

[0036] Step S12: In the expert mode, if a locking command triggered by the user is received, the electronic differential lock is controlled to enter a locked state, until a closing command triggered by the user is received, the electronic differential lock is controlled to enter a closed state.

[0037] In the related art, the electronic differential lock implements an automatic unlocking control strategy. In this automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, it is considered that locking the electronic differential lock will affect the vehicle stability and even cause serious consequences, so the electronic differential lock will be controlled to enter a closed state. When the vehicle is stuck, although the vehicle has no speed, the wheels are still spinning. If the speed is calculated based on the wheel speed, the calculated speed may have reached the predetermined speed, and the electronic differential lock will automatically close. If the driver is very familiar with the vehicle, he can manually control the electronic differential lock according to the actual situation.

[0038] First, the driver can trigger a self-help command through a dedicated button (mechanical button or soft button). At this time, the current automatic unlocking control strategy of the electronic differential lock is suspended and the expert mode is entered, that is, the automatic closing of the electronic differential lock is no longer executed. Then the state of the electronic differential lock is completely controlled manually by the driver.

[0039] For example, a prompt message for entering the expert mode may be displayed in the head unit system (HUT), and the current state of the electronic differential lock is displayed as the closed state (initial state), as well as a soft key for selecting the locked state. When the driver presses the "lock" button in the HUT, the locking command is triggered, and the electronic differential lock enters the locked state.

[0040] Through the above technical solution, the electronic differential lock has an expert mode. If the driver is very familiar with the working principle, function and performance of each actuator unit of the vehicle, he can use the expert mode to actively control the state of the electronic differential lock. In this way, when the vehicle is stuck, the driver can actively control the electronic differential lock to enter the locked state to get the vehicle out of trouble, avoiding the situation where the electronic differential lock is automatically unlocked due to the detected vehicle speed reaching a certain value (but not actually reaching it), resulting in the vehicle being unable to get out of trouble, thereby enhancing the flexibility of the use of the electronic differential lock.

[0041] If the vehicle has been freed and the driver wants to continue to manually control the electronic differential lock, the expert mode can be maintained according to the actual situation. In the expert mode, if the electronic differential lock is in the locked state and receives a closing command triggered by the user, the electronic differential lock is controlled to enter the closed state.

[0042] That is, if the driver determines based on experience that the electronic differential lock needs to be turned off, the driver can control the electronic differential lock to enter the off state by clicking the "off" soft key in the expert mode. In this way, the driver can control the state of the electronic differential lock to switch back and forth between off and locked in the expert mode, which enhances the driver's flexibility in using the electronic differential lock.

[0043] In expert mode, the electronic differential lock is not controlled by the above-mentioned automatic unlocking control strategy. Even if the vehicle speed reaches the predetermined speed, the electronic differential lock will not be controlled to enter the closed state if the user does not trigger the closing command.

[0044] If the vehicle is out of trouble and running normally, the expert mode can be exited and the vehicle can be automatically controlled. Figure 1 On the basis of, the method may further include: in the expert mode, if an exit instruction triggered by a user is received, controlling the electronic differential lock to exit the expert mode and executing according to the automatic unlocking control strategy.

[0045] For example, a soft key for exiting may be included in the interface of the HUT, and the driver sends an exit instruction by clicking the exit soft key. After exiting the expert mode, the electronic differential lock re-executes the above automatic unlocking control strategy to ensure the safety of vehicle operation.

[0046] The driver can also be reminded to enter the expert mode to control the vehicle to get out of trouble when necessary. Figure 1 On the basis of, the method may further include: during the operation of the vehicle, if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, outputting a prompt message, the prompt message being used to prompt entering the expert mode.

[0047] The vehicle speed can be detected by other means besides the wheel speed, for example, by GPS positioning and calculation. If the vehicle speed is zero and the wheel speed is greater than the predetermined wheel speed threshold, it can be considered that the vehicle is stuck. At this time, if the driver is experienced, the expert mode can be used to get the vehicle out of trouble. If the above conditions are met, a window can pop up in the HUT to remind the driver that the electronic differential lock can be controlled to enter the expert mode. For example, a message can pop up saying "The current vehicle is stuck. You can try to control the electronic differential lock autonomously. Please press Yes if you agree." At this time, the driver presses the "Yes" button to trigger the self-service command.

[0048] In this embodiment, the driver can be automatically prompted to enter the expert mode when necessary, so that the user can quickly understand and quickly try to lock the electronic differential lock to get the vehicle out of trouble as soon as possible.

[0049] If the electronic differential lock exits the expert mode, before exiting the expert mode, the electronic differential lock may be in a closed state or a locked state. If after exiting the expert mode, the electronic differential lock maintains the locked state before exiting, it may cause instability in vehicle driving in some extreme cases. In view of this, in another embodiment, the method may further include: if the electronic differential lock exits the expert mode, controlling the electronic differential lock to enter a closed state.

[0050] That is, no matter what state the electronic differential lock is in before exiting the expert mode, as long as the expert mode is exited, it will be turned off to ensure the safety of the vehicle.

[0051] Figure 2 FIG. 1 is a block diagram of a control device for an electronic differential lock provided by an exemplary embodiment. Figure 2 As shown, the control device 200 of the electronic differential lock may include a first control module 201 and a second control module 202 .

[0052] The first control module 201 is used to control the suspension of the current automatic unlocking control strategy of the electronic differential lock and enter the expert mode if a self-help instruction triggered by the user is received during the operation of the vehicle. In the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter the closed state. The initial state of the electronic differential lock in the expert mode is the closed state.

[0053] The second control module 202 is used to control the electronic differential lock to enter a locked state when receiving a locking command triggered by the user in the expert mode, and control the electronic differential lock to enter a closed state when receiving a closing command triggered by the user.

[0054] Optionally, the electronic differential lock control device 200 may further include a third control module.

[0055] The third control module is used to control the electronic differential lock to exit the expert mode and execute according to the automatic unlocking control strategy if an exit command triggered by the user is received in the expert mode.

[0056] Optionally, the electronic differential lock control device 200 may further include a fourth control module.

[0057] The fourth control module is used to output a prompt message during vehicle operation if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, the prompt message being used to prompt entry into the expert mode, wherein the vehicle speed is located and calculated via GPS.

[0058] Optionally, the electronic differential lock control device 200 may further include a fifth control module.

[0059] The fifth control module is used for controlling the electronic differential lock to enter a closed state if the electronic differential lock exits the expert mode.

[0060] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0061] Through the above technical solution, the electronic differential lock has an expert mode. If the driver is very familiar with the working principle, function and performance of each actuator unit of the vehicle, he can use the expert mode to actively control the state of the electronic differential lock. In this way, when the vehicle is stuck, the driver can actively control the electronic differential lock to enter the locked state to get the vehicle out of trouble, avoiding the situation where the electronic differential lock is automatically unlocked due to the detected vehicle speed reaching a certain value (but not actually reaching it), resulting in the vehicle being unable to get out of trouble, thereby enhancing the flexibility of the use of the electronic differential lock.

[0062] The present disclosure also provides an electronic device, including a memory and a processor. The memory stores a computer program; the processor is used to execute the computer program in the memory to implement the steps of the above method provided by the present disclosure.

[0063] Figure 3 FIG. 1 is a block diagram of an electronic device 300 shown in an exemplary embodiment. Figure 3 As shown, the electronic device 300 may include: a processor 301 , a memory 302 . The electronic device 300 may also include one or more of a multimedia component 303 , an input / output (I / O) interface 304 , and a communication component 305 .

[0064] The processor 301 is used to control the overall operation of the electronic device 300 to complete all or part of the steps in the control method of the electronic differential lock. The memory 302 is used to store various types of data to support the operation of the electronic device 300, and these data may include instructions for any application or method used to operate on the electronic device 300, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, disk or optical disk. The multimedia component 303 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 302 or sent through the communication component 305. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 304 provides an interface between the processor 301 and other interface modules, and the other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 305 is used for wired or wireless communication between the electronic device 300 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, is not limited here. Therefore, the corresponding communication component 305 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0065] In an exemplary embodiment, the electronic device 300 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned electronic differential lock control method.

[0066] In another exemplary embodiment, a non-transitory computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the control method of the electronic differential lock described above are implemented. For example, the computer-readable storage medium may be the memory 302 including the program instructions, and the program instructions may be executed by the processor 301 of the electronic device 300 to complete the control method of the electronic differential lock described above.

[0067] In another exemplary embodiment, a computer program product is further provided. The computer program product includes a computer program executable by a programmable device, and the computer program has a code portion for executing the above-mentioned electronic differential lock control method when executed by the programmable device.

[0068] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0070] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A control method for an electronic differential lock, characterized in that: The method comprises: During the operation of the vehicle, if a self-help instruction triggered by a user is received, the current automatic unlocking control strategy of the electronic differential lock is controlled to be suspended, and the expert mode is entered, wherein in the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state, and the initial state of the electronic differential lock in the expert mode is a closed state; In the expert mode, if a locking command triggered by a user is received, the electronic differential lock is controlled to enter a locked state, until a closing command triggered by a user is received, the electronic differential lock is controlled to enter a closed state; During vehicle operation, if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, a prompt message is output, wherein the prompt message is used to prompt entry into the expert mode, wherein the vehicle speed is located and calculated through GPS.

2. The method according to claim 1, characterized in that The method further comprises: In the expert mode, if an exit instruction triggered by a user is received, the electronic differential lock is controlled to exit the expert mode and is executed according to the automatic unlocking control strategy.

3. The method according to claim 2, characterized in that The method further comprises: If the electronic differential lock exits the expert mode, the electronic differential lock is controlled to enter a closed state.

4. A control device for an electronic differential lock, characterized in that: The device comprises: A first control module, configured to control the suspension of the current automatic unlocking control strategy of the electronic differential lock and enter an expert mode if a self-help instruction triggered by a user is received during the operation of the vehicle, wherein in the automatic unlocking control strategy, if the vehicle speed reaches a predetermined speed, the electronic differential lock is controlled to enter a closed state, and the initial state of the electronic differential lock in the expert mode is a closed state; A second control module is used for controlling the electronic differential lock to enter a locked state when a locking command triggered by a user is received in the expert mode, and controlling the electronic differential lock to enter a closed state when a closing command triggered by a user is received; The fourth control module is used to output a prompt message during vehicle operation if the vehicle speed is zero and the wheel speed is greater than a predetermined wheel speed threshold, wherein the prompt message is used to prompt entry into the expert mode, wherein the vehicle speed is located and calculated through GPS.

5. The device according to claim 4, characterized in that The device also includes: The third control module is used to control the electronic differential lock to exit the expert mode and execute according to the automatic unlocking control strategy if an exit instruction triggered by the user is received in the expert mode.

6. The device according to claim 5, characterized in that The device also includes: The fifth control module is used to control the electronic differential lock to enter a closed state if the electronic differential lock exits the expert mode.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 3 are implemented.

8. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 3.

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