Transfer case control method, device and equipment and storage medium

Abstract

The embodiment of the invention provides a transfer case control method and device, equipment and a storage medium. The method comprises the following steps: firstly, acquiring a first gear switching request; then, if the current gear of the transfer case is not in the neutral gear state and the target gear is not in the neutral gear state, the driving state of the vehicle is determined; finally, if the driving state of the vehicle meets the preset condition corresponding to the target gear, reminding information is output. According to the method, misoperation on the gears of the transfer case is effectively avoided, and the fault rate of the transfer case is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control, and in particular to a transfer case control method, device, equipment and storage medium. Background Art

[0002] In the current engineering vehicle industry, vehicles with transfer cases are generally used to cope with complex working conditions and diverse work tasks. In such work tasks, it is usually necessary to control the transfer case to switch between high and low gears to adjust the vehicle's output torque and driving speed. However, if the gear switching process is improperly operated, that is, switching directly from high gear to low gear without passing through neutral gear, it is very easy to cause mechanical wear of the transmission system, damage the transfer case, and cause it to fail to operate normally. Therefore, it is very important to ensure the normal high and low gear switching of the transfer case.

[0003] In the prior art, the control method for the transfer case usually adopts the control logic for the transfer case gear switching developed on other controllers (such as the upper controller) to switch the low gear to the high gear or the high gear to the low gear to complete the gear control of the transfer case.

[0004] However, the control method for the transfer case in the prior art is relatively simple and has a certain delayed response, which cannot effectively cope with the gear switching requirements under complex working conditions, thereby reducing the driving experience and work efficiency. Summary of the invention

[0005] The transfer case control method, device, equipment and storage medium provided in the embodiments of the present application are used to solve the problem that the control method for the transfer case in the prior art is single and has a certain delayed response, and cannot cope with the gear switching requirements under complex working conditions.

[0006] In a first aspect, an embodiment of the present application provides a transfer case control method, which is applied to a transfer case controller in a vehicle, comprising:

[0007] Acquire a first gear shift request, wherein the first gear shift request is used to request to shift the transfer case to a target gear;

[0008] If the current gear position of the transfer case is not in a neutral state, and the target gear position is not in the neutral state, determining the driving state of the vehicle;

[0009] If the driving state of the vehicle satisfies the preset condition corresponding to the target gear position, a reminder message is output, where the reminder message is used to remind the driver to switch the current gear position of the transfer case to the neutral state.

[0010] In a possible implementation manner, if the target gear is a high gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is acceleration;

[0011] If the target gear is a low gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is deceleration.

[0012] In a possible implementation, the transfer case controller is physically connected to the chassis of the vehicle, and the transfer case controller is communicatively connected to a CAN bus.

[0013] In a possible implementation manner, determining the driving state of the vehicle includes:

[0014] Acquire the speed and acceleration of the vehicle from the CAN bus;

[0015] The driving state of the vehicle is determined based on the speed and acceleration of the vehicle.

[0016] In a possible implementation, the method further includes:

[0017] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the first gear position switching request is executed to switch the transfer case to the target gear position.

[0018] In a possible implementation, the method further includes:

[0019] Get the transfer case inter-axle differential lock opening request;

[0020] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case inter-axle differential lock opening request is executed to open the inter-axle differential lock of the transfer case.

[0021] In a possible implementation, the method further includes:

[0022] Obtain transfer case power take-off start request;

[0023] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case power take-off start request is executed to switch the transfer case to a power take-off state.

[0024] In a second aspect, an embodiment of the present application provides a transfer case control device, comprising:

[0025] an acquisition module, configured to acquire a first gear shift request, wherein the first gear shift request is used to request to shift the transfer case to a target gear;

[0026] a determination module, configured to determine the driving state of the vehicle if the current gear position of the transfer case is not in a neutral state and the target gear position is not in the neutral state;

[0027] The output module is used to output a reminder message if the driving state of the vehicle meets the preset condition corresponding to the target gear position, wherein the reminder message is used to remind the driver to switch the current gear position of the transfer case to the neutral state.

[0028] In a possible implementation manner, the determining module is specifically configured to:

[0029] If the target gear is a high gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is acceleration;

[0030] If the target gear is a low gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is deceleration.

[0031] In a possible implementation, the transfer case controller is physically connected to the chassis of the vehicle, and the transfer case controller is communicatively connected to a controller area network (CAN) bus.

[0032] In a possible implementation manner, the determining module is specifically configured to:

[0033] Acquire the speed and acceleration of the vehicle from the CAN bus;

[0034] The driving state of the vehicle is determined based on the speed and acceleration of the vehicle.

[0035] In a possible implementation manner, the transfer case control device further includes a processing module, which is used to:

[0036] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the first gear position switching request is executed to switch the transfer case to the target gear position.

[0037] In a possible implementation manner, the processing module is further used to:

[0038] Get the transfer case inter-axle differential lock opening request;

[0039] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case inter-axle differential lock opening request is executed to open the inter-axle differential lock of the transfer case.

[0040] In a possible implementation manner, the processing module is further used to:

[0041] Obtain transfer case power take-off start request;

[0042] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case power take-off start request is executed to switch the transfer case to a power take-off state.

[0043] In a third aspect, an embodiment of the present application provides an electronic device, including: a memory, a processor;

[0044] The memory stores computer-executable instructions;

[0045] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0046] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementations of the first aspect.

[0047] The transfer case control method, device, equipment and storage medium provided in the embodiment of the present application use the driving state of the vehicle as a condition for determining whether a gear shift is required, and promptly remind the driver when the driving state of the vehicle meets the preset conditions, thereby effectively avoiding the driver's misoperation of the gear shift and reducing the failure rate of the transfer case. Specifically, firstly, a request to switch the transfer case to a target gear, i.e., switching to a high gear, a low gear or a neutral gear is obtained; then, the current gear state of the transfer case is obtained. If the current gear of the transfer case is not in a neutral state and the target gear is not in a neutral state, it indicates that there is a risk of misoperation of the transfer case at present, and it is necessary to further determine the driving state of the vehicle; finally, it is determined whether the preset conditions corresponding to the target gear are met according to the driving state of the vehicle. If so, a reminder message is output to remind the driver to switch the current gear of the transfer case to a neutral state, so as to avoid the driver directly switching between high and low gears in an inappropriate state. This method combines the vehicle's driving status and the transfer case's current status to make dual judgments, which not only ensures the rationality of gear switching, but also effectively reduces the failure rate of the transfer case, extends the life of the transfer case, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0049] Figure 1 A control principle diagram of a transfer case control method provided in an embodiment of the present application;

[0050] Figure 2 A schematic flow chart of a transfer case control method provided in an embodiment of the present application;

[0051] Figure 3 A schematic diagram of the structure of a transfer case control device provided in an embodiment of the present application;

[0052] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0053] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0054] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0055] In the current engineering vehicle industry, vehicles with transfer cases are indeed mainly used for complex working conditions and diverse tasks. Since these vehicles often work under low-speed and high-torque conditions, the high- and low-gear switching of the transfer case becomes an important part of the operation. Reasonable switching of high and low gears can effectively adjust the vehicle output torque and speed to adapt to different load and road conditions. However, if the gear switching process is improperly operated, such as directly switching to low gear in high gear, it may cause a large mechanical shock to the transmission system. This shock will not only accelerate the wear of the transfer case gears and internal components, but may even cause damage to the transfer case, causing the vehicle to lose transmission power and affecting the normal operation. Therefore, it is very important to ensure the normal high and low gear switching of the transfer case.

[0056] In the prior art, the control method for the transfer case usually adopts the control logic for the transfer case gear switching developed on other controllers (such as the upper controller) to switch the low gear to the high gear or the high gear to the low gear to complete the gear control of the transfer case.

[0057] However, since engineering vehicles need to switch gears under various terrain, load and speed conditions, simple neutral gear judgment is insufficient in the face of these dynamic situations, and the control method of the transfer case is relatively simple; on the other hand, the control logic is located on the upper controller, involving communication between the transfer case and other controllers, especially under high load or high-speed operation, which may cause delayed response, affect real-time performance, and reduce driving experience and work efficiency.

[0058] Based on this, the present application proposes a transfer case control method, device, equipment and storage medium, considering that in addition to the current gear state of the transfer case, the driving state of the vehicle has a certain influence on the high-gear and low-gear switching of the vehicle. For example, when the vehicle is in an accelerating state, it indicates that the current driving state of the vehicle meets the preset conditions for switching to a high gear, but there is a risk of direct switching at present, and the driver needs to be reminded to switch to neutral to avoid misoperation of the transfer case. Therefore, by using the driving state of the vehicle as a condition for determining whether a gear switch is required, and timely reminding the driver when the driving state of the vehicle meets the preset conditions, the driver's misoperation of the gear switch is effectively avoided, and the failure rate of the transfer case is reduced. Specifically, first, a request to switch the transfer case to the target gear position is obtained, that is, switching to a high gear position, a low gear position, or a neutral gear position; then, the current gear position state of the transfer case is obtained. If the current gear position of the transfer case is not in a neutral gear position, and the target gear position is not in a neutral gear position, it indicates that there is a risk of misoperation of the transfer case, and it is necessary to further determine the driving state of the vehicle, such as the vehicle speed or acceleration; finally, it is determined whether the preset conditions corresponding to the target gear position are met according to the driving state of the vehicle. If so, a reminder message is output to remind the driver to switch the current gear position of the transfer case to a neutral gear position, so as to avoid the driver directly switching between high and low gear positions in an inappropriate state. This method not only ensures the rationality of gear switching, but also effectively reduces the failure rate of the transfer case, prolongs the life of the transfer case, and improves work efficiency.

[0059] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0060] Figure 1 The control principle diagram of the transfer case control method provided in the embodiment of the present application; Figure 1 As shown, the transfer case controller is physically connected to the chassis of the vehicle, and the transfer case controller is communicatively connected to a controller area network (CAN) bus.

[0061] Among them, the transfer case controller is directly connected to the high-speed switch, low-speed switch, inter-axle differential lock switch and power take-off switch through the vehicle chassis. Specifically, the high-speed, low-speed and inter-axle differential lock switches are powered and signaled through the T15 key-controlled power supply to ensure that they can only be operated when the key is turned on. The power take-off switch receives the power signal through the neutral signal of the transfer case, and can only receive the signal when the transfer case is in neutral, thereby realizing the control of the power take-off function; the transfer case controller is connected to the high-speed solenoid valve, low-speed solenoid valve, inter-axle differential lock solenoid valve and power take-off solenoid valve through the ground wire (Ground, GND).

[0062] It should be noted that the CAN bus that communicates with the transfer case controller includes two main signal lines: a low-level signal (CAN-L) and a high-level signal (CAN-H), which are used to transmit data and realize communication between devices.

[0063] Optionally, in order to enable the transfer case controller to perform normal data transmission, power supply and signal acquisition, it is also necessary to define different pins of the transfer case controller. The pin definition of the transfer case controller in this embodiment is shown in Table 1:

[0064] Table 1 Transfer case controller pin definition

[0065]

[0066] Figure 2 A flow chart of a transfer case control method provided in an embodiment of the present application; Figure 2 As shown, the method includes:

[0067] S201: Obtain a first gear shift request.

[0068] The first gear shift request is used to request to shift the transfer case to a target gear.

[0069] It should be noted that before obtaining the first gear shift request, in order to ensure the normal operation of the transfer case controller and the normal transmission of communication data and signals, it is necessary to initialize the parameters of the transfer case controller, the CAN bus and the input / output (IO) signal interface.

[0070] Furthermore, a first gear shift request is obtained through the IO signal interface to switch the transfer case to the target gear.

[0071] It can be understood that obtaining the first gear shift request through the IO signal interface can achieve a quick response to the transfer case switching and ensure that the transfer case controller directly receives the driver's operation signal.

[0072] S202: If the current gear position of the transfer case is not in the neutral state, and the target gear position is not in the neutral state, determine the driving state of the vehicle.

[0073] Among them, the gear status of the transfer case can be obtained through the CAN bus.

[0074] It should be understood that if the current gear position and the target gear position of the transfer case are not in neutral, then there is a risk of misoperation in requesting to directly switch gears while the vehicle is moving. In this case, it is necessary to further confirm the vehicle's driving state to determine whether the current vehicle's driving state is suitable for switching the target gear.

[0075] In one achievable manner, a specific manner of determining the driving state of the vehicle may be:

[0076] First, the speed and acceleration of the vehicle are obtained from the CAN bus; then, the driving state of the vehicle is determined based on the speed and acceleration of the vehicle.

[0077] For example, if the vehicle is at a low speed but the acceleration is a positive number, it indicates that the current vehicle is in an accelerating state; correspondingly, if the vehicle is at a high speed but the acceleration is a negative number, it indicates that the current vehicle is in a decelerating state.

[0078] It can be understood that the vehicle's speed signal is read through the CAN bus to determine the current driving speed range (such as low speed or high speed); the acceleration data is obtained through the CAN bus to help determine the vehicle's dynamic state (such as acceleration or deceleration), which can further determine the current specific driving state of the vehicle.

[0079] S203: If the driving state of the vehicle meets the preset condition corresponding to the target gear position, output a reminder message.

[0080] The reminder information is used to remind the driver to switch the current gear position of the transfer case to a neutral state.

[0081] It should be understood that if the vehicle's driving state meets the preset conditions corresponding to the target gear, it means that the vehicle has reached a suitable gear shifting time and the gear can be switched through normal gear shifting operations. In order to prevent the driver from making misoperations, a reminder message is output to the vehicle through the CAN bus to remind the driver to switch the current gear of the transfer case to the neutral state before further shifting operations.

[0082] Optionally, the output reminder information can be provided to the driver as a text prompt on the vehicle display screen, as a voice prompt through the vehicle's speakers, or as a visual prompt by controlling the vehicle's warning lights to flash. The specific reminder information method is determined based on actual conditions and is not specifically limited in the embodiments of the present application.

[0083] In one achievable manner, the preset condition corresponding to the target gear position may be:

[0084] If the target gear is a high gear, the preset condition corresponding to the high gear is that the vehicle's driving state is acceleration; if the target gear is a low gear, the preset condition corresponding to the high gear is that the vehicle's driving state is deceleration.

[0085] It should be understood that when the target gear is a high gear, in order to avoid mechanical damage caused by switching to a high gear under low speed or low torque conditions, switching to a high gear is allowed only when the vehicle's driving state is determined to be accelerating after obtaining the vehicle's acceleration and acceleration, so as to ensure that the transfer case can be smoothly switched to a high gear.

[0086] Accordingly, only when the vehicle's driving state is judged to be deceleration after obtaining the vehicle's acceleration and acceleration, will it be allowed to switch to a low gear, so as to ensure that the transfer case can smoothly switch to a low gear.

[0087] It can be understood that whether to allow gear switching is determined by the driving state of the vehicle, thereby avoiding misoperation of gears due to inappropriate speed or acceleration / deceleration state, reducing damage to the transfer case and transmission system, and improving driving experience and work efficiency.

[0088] The transfer case control method provided in the embodiment of the present application uses the driving state of the vehicle as a condition for determining whether a gear switch is required, and promptly reminds the driver when the driving state of the vehicle meets the preset conditions, thereby effectively avoiding the driver's misoperation of the gear switch and reducing the failure rate of the transfer case. Specifically, firstly, a request to switch the transfer case to a target gear, i.e., switching to a high gear, a low gear, or a neutral gear is obtained; then, the current gear state of the transfer case is obtained. If the current gear of the transfer case is not in a neutral state, and the target gear is not in a neutral state, it indicates that there is a risk of misoperation of the transfer case, and it is necessary to further determine the driving state of the vehicle; finally, it is determined whether the preset conditions corresponding to the target gear are met according to the driving state of the vehicle. If so, a reminder message is output to remind the driver to switch the current gear of the transfer case to a neutral state, so as to avoid the driver directly switching between high and low gears in an inappropriate state. This method combines the vehicle's driving status and the transfer case's current status to make dual judgments, which not only ensures the rationality of gear switching, but also effectively reduces the failure rate of the transfer case, extends the life of the transfer case, and improves work efficiency.

[0089] It should be noted that, when it is obtained that the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than the preset speed, the control operation of the transfer case further includes:

[0090] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the first gear shift request is executed to shift the transfer case to a target gear position.

[0091] Specifically, when the target gear of the first gear switching request is low gear, the current gear of the transfer case is in neutral, and the speed of the vehicle is less than the preset speed, the transfer case controller executes the first gear switching request, and by receiving the low gear switch input signal (mutually exclusive with the high gear switch), the transfer case controller outputs a high level to the low gear solenoid valve, the low gear solenoid valve coil is energized, and switches to low gear; correspondingly, if the target gear of the first gear switching request is high gear, the transfer case controller receives the high gear switch input signal (mutually exclusive with the low gear switch), the transfer case controller outputs a high level to the high gear solenoid valve, the high gear solenoid valve coil is energized, and switches to high gear.

[0092] It should be understood that, while ensuring that the transfer case gear is in neutral, setting a preset speed as a restriction condition (eg, 5 km / h or lower) can ensure that the vehicle switches gears in a low-speed and safe state.

[0093] Furthermore, the control operation of the transfer case also includes an inter-axle differential lock request, and the specific control method is as follows:

[0094] First, a transfer case axle differential lock opening request is obtained; then, if the current gear position of the transfer case is in neutral and the speed of the vehicle is less than a preset speed, the transfer case axle differential lock opening request is executed to open the transfer case axle differential lock.

[0095] It should be noted that since the inter-axle differential lock is mainly used to lock the differentials between different drive axles when the vehicle has multiple axles, to help the vehicle enhance traction on complex road conditions, the inter-axle differential lock is generally only allowed to be opened at low speeds to avoid mechanical damage and safety hazards caused by locking the differential at high speeds.

[0096] Specifically, when the transfer case controller obtains a request to open the transfer case inter-axle differential lock, and determines that the current gear is in neutral, and the vehicle speed is less than a preset speed, the transfer case inter-axle differential lock opening request is executed, and the inter-axle differential lock switch input signal is received. The transfer case controller outputs a high level to the inter-axle differential lock solenoid valve, the inter-axle differential lock solenoid valve coil is energized, and the inter-axle differential lock is opened.

[0097] It is understandable that operating the differential lock in the transfer case neutral and low speed state helps the vehicle to drive smoothly, avoids the risk of loss of control caused by opening the differential lock at high speed, reduces system impact and wear, and reduces the possibility of transfer case failure.

[0098] Correspondingly, the specific process of the power take-off control of the transfer case is as follows:

[0099] A transfer case power take-off start request is obtained; if the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case power take-off start request is executed to switch the transfer case to a power take-off state.

[0100] It should be noted that in order to facilitate the transmission of power to the power take-off device (such as hydraulic pump, boom, etc.) without driving the wheels, to avoid accidental movement of the vehicle and to ensure safe operation, the power take-off function of the transfer case usually requires the vehicle to be in neutral and at low speed or completely stationary before it can be executed.

[0101] Specifically, when the transfer case controller obtains the transfer case power take-off start request and determines that the current gear is in neutral state, and the vehicle speed is less than the preset speed, the transfer case power take-off start request is executed. By receiving the power take-off switch input signal, the transfer case controller outputs a high level to the power take-off solenoid valve, the power take-off solenoid valve coil is energized, and the transfer case switches to the power take-off state.

[0102] Furthermore, after the transfer case controller completes the target gear switching request, the inter-axle differential lock request and the power take-off opening request, the transfer case controller obtains the communication data of the CAN bus to ensure whether the current transfer case status is executed, that is, whether the target gear switching is completed, whether the inter-axle differential lock is turned on, and whether the power take-off device is turned on. If the obtained transfer case statuses are all correct, it means that the transfer case controller has completed the control operation; if the transfer case status is incorrect, the IO signal interface is reset and the control operation is performed again to update the transfer case status. If the transfer case status obtained is still incorrect after repeated resets, it indicates that the transfer case controller or the signal interface has a fault, and a reminder message is output to prompt the driver to perform vehicle fault detection.

[0103] It can be understood that switching the power take-off state when the transfer case is in neutral and at low speed helps to ensure that the power take-off device will not be accidentally activated while the vehicle is in motion, reduces operating risks, and can extend the service life of the transfer case, transmission system and power take-off device.

[0104] Figure 3 A schematic diagram of the structure of a transfer case control device provided in an embodiment of the present application; Figure 3 As shown, the transfer case control device 30 includes: an acquisition module 301 , a determination module 302 , and an output module 303 .

[0105] An acquisition module 301 is used to acquire a first gear shift request, where the first gear shift request is used to request to shift the transfer case to a target gear;

[0106] A determination module 302 is used to determine the driving state of the vehicle if the current gear position of the transfer case is not in a neutral state and the target gear position is not in a neutral state;

[0107] The output module 303 is used to output a reminder message if the driving state of the vehicle meets the preset condition corresponding to the target gear position, and the reminder message is used to remind the driver to switch the current gear position of the transfer case to a neutral state.

[0108] In a possible implementation, the determination module 302 is specifically configured to:

[0109] If the target gear is a high gear, the preset condition corresponding to the high gear is that the vehicle's driving state is acceleration;

[0110] If the target gear is a low gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is deceleration.

[0111] In one possible implementation, the transfer case controller is physically connected to the chassis of the vehicle, and the transfer case controller is communicatively connected to a controller area network (CAN) bus.

[0112] In a possible implementation, the determination module 302 is specifically configured to:

[0113] Get the vehicle's speed and acceleration from the CAN bus;

[0114] The driving state of the vehicle is determined based on the speed and acceleration of the vehicle.

[0115] In a possible implementation, the transfer case control device further includes a processing module 304 for:

[0116] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the first gear shift request is executed to shift the transfer case to a target gear position.

[0117] In a possible implementation, the processing module 304 is further configured to:

[0118] Get the transfer case inter-axle differential lock opening request;

[0119] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, a transfer case inter-axle differential lock opening request is executed to open the inter-axle differential lock of the transfer case.

[0120] In a possible implementation, the processing module 304 is further configured to:

[0121] Obtain transfer case power take-off start request;

[0122] If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case power take-off on request is executed to switch the transfer case to a power take-off state.

[0123] The transfer case control device provided in this embodiment can execute the transfer case control method provided in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be described in detail here.

[0124] It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software calling through processing elements, and some modules can be implemented in the form of hardware. In addition, all or part of these modules can be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0125] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 4 As shown, the electronic device 40 provided in this embodiment includes: at least one processor 401 and a memory 402. Optionally, the device 40 also includes a communication component 403. The processor 401, the memory 402 and the communication component 403 are connected via a bus 404.

[0126] In a specific implementation process, at least one processor 401 executes the computer-executable instructions stored in the memory 402 , so that at least one processor 401 executes the above transfer case control method.

[0127] The specific implementation process of the processor 401 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0128] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the invention can be directly implemented as a hardware processor, or can be implemented by a combination of hardware and software modules in the processor.

[0129] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0130] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0131] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above-mentioned transfer case control method is implemented.

[0132] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a 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 readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0133] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0134] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0135] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple 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.

[0136] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0137] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0138] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0139] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A transfer case control method, characterized in that: Transfer case controller used in vehicles, including: Acquire a first gear shift request, wherein the first gear shift request is used to request to shift the transfer case to a target gear; If the current gear position of the transfer case is not in a neutral state, and the target gear position is not in the neutral state, determining the driving state of the vehicle; If the driving state of the vehicle satisfies the preset condition corresponding to the target gear position, a reminder message is output, where the reminder message is used to remind the driver to switch the current gear position of the transfer case to the neutral state.

2. The method according to claim 1, characterized in that If the target gear is a high gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is acceleration; If the target gear is a low gear, the preset condition corresponding to the high gear is that the driving state of the vehicle is deceleration.

3. The method according to claim 1 or 2, characterized in that: The transfer case controller is physically connected to the chassis of the vehicle, and the transfer case controller is communicatively connected to a controller area network (CAN) bus.

4. The method according to claim 3, characterized in that The determining the driving state of the vehicle includes: Acquire the speed and acceleration of the vehicle from the CAN bus; The driving state of the vehicle is determined based on the speed and acceleration of the vehicle.

5. The method according to claim 1 or 2, characterized in that: The method further comprises: If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the first gear position switching request is executed to switch the transfer case to the target gear position.

6. The method according to claim 1 or 2, characterized in that: The method further comprises: Get the transfer case inter-axle differential lock opening request; If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case inter-axle differential lock opening request is executed to open the inter-axle differential lock of the transfer case.

7. The method according to claim 1 or 2, characterized in that: The method further comprises: Obtain transfer case power take-off start request; If the current gear position of the transfer case is in a neutral state and the speed of the vehicle is less than a preset speed, the transfer case power take-off start request is executed to switch the transfer case to a power take-off state.

8. A transfer case control device, characterized in that: include: an acquisition module, configured to acquire a first gear shift request, wherein the first gear shift request is used to request to shift the transfer case to a target gear; a determination module, configured to determine the driving state of the vehicle if the current gear position of the transfer case is not in a neutral state and the target gear position is not in the neutral state; The output module is used to output a reminder message if the driving state of the vehicle meets the preset condition corresponding to the target gear position, wherein the reminder message is used to remind the driver to switch the current gear position of the transfer case to the neutral state.

9. An electronic device, comprising: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the transfer case control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the transfer case control method according to any one of claims 1 to 7.

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