Transfer case control method, device, vehicle and computer storage medium

Abstract

Embodiments of the present invention provide a transfer case control method, device, vehicle, and computer-readable storage medium. The method includes: obtaining the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status; based on the speed, engine speed, transmission output shaft speed, and vehicle status, detecting whether a transfer case lock rejection condition is met; if so, the transfer case lock rejection. This allows the slippage of the two wheels on the vehicle's center axle and the vehicle's motion state to be determined, thereby determining whether to unlock the transfer case, preventing the transfer case from engaging, protecting the vehicle's transmission system, and preventing loss of driving force that could affect vehicle escape.

Description

Technical Field

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

[0002] With the popularity of vehicles in life and users' demand for vehicles, 6x6 vehicles have appeared in the vehicle market. In existing 6x6 vehicles, when the transfer case is locked, it is unable to identify the slipping of the left and right wheels of the center bridge. At this time, the transfer case still remains locked, which will cause gear knocking and damage the transmission system, causing the vehicle to lose driving force, affecting the vehicle's escape effect and the vehicle's off-road performance. Summary of the Invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a transfer case control method, a transfer case control device, a vehicle, and a computer-readable storage medium that overcome the above problems or at least partially solve the above problems.

[0004] To solve the above problems, an embodiment of the present invention discloses a transfer case control method, which is applied to a 6x6 vehicle. The method includes:

[0005] Get the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status;

[0006] detecting whether a transfer case lock rejection condition is satisfied based on the speed state, the engine speed, the transmission output shaft speed, and the vehicle state;

[0007] If so, the transfer case refuses to lock.

[0008] Optionally, the detecting whether a transfer case locking rejection condition is satisfied based on the speed state, the engine speed, the transmission output shaft speed, and the vehicle speed includes:

[0009] Check whether the speed state meets the first sub-condition; if so,

[0010] Detect whether the engine speed meets the second sub-condition; if so,

[0011] Detect whether the transmission output shaft speed meets the third sub-condition; if so,

[0012] Check whether the vehicle state satisfies the fourth sub-condition; if so,

[0013] The transfer case lock rejection condition is met.

[0014] Optionally, detecting whether the speed state satisfies a first sub-condition includes:

[0015] Detecting whether the current speed state of the vehicle is an accelerating state;

[0016] If the speed state is the acceleration state, the first sub-condition is satisfied.

[0017] Optionally, detecting whether the engine speed satisfies a second sub-condition includes:

[0018] detecting whether a current engine speed of the vehicle is greater than a preset engine speed;

[0019] If the engine speed is greater than the preset engine speed, the second sub-condition is met.

[0020] Optionally, detecting whether the transmission output shaft speed satisfies a third sub-condition includes:

[0021] detecting whether a current transmission output shaft speed of the vehicle is greater than a preset transmission output shaft speed;

[0022] If the transmission output shaft speed is greater than the preset transmission output shaft speed, the third sub-condition is met.

[0023] Optionally, the vehicle state includes a vehicle speed; the fourth sub-condition includes a first preset vehicle speed; and detecting whether the vehicle state satisfies the fourth sub-condition includes:

[0024] detecting whether the current speed of the vehicle is less than the first preset speed;

[0025] If the vehicle speed is less than the first preset vehicle speed, the fourth sub-condition is satisfied.

[0026] Optionally, the vehicle state further includes a vehicle speed and a chassis height; the fourth sub-condition includes a second preset vehicle speed and a preset chassis height; and detecting whether the vehicle state satisfies the fourth sub-condition further includes:

[0027] Detecting whether the current speed of the vehicle is less than a second preset speed, and whether the current chassis height is less than a preset chassis height;

[0028] If the vehicle speed is less than the second preset vehicle speed and the chassis height is less than the preset chassis height, the fourth sub-condition is satisfied.

[0029] Optionally, obtaining the current speed state of the vehicle includes:

[0030] Obtaining a current change in the opening of the accelerator pedal of the vehicle;

[0031] determining a rate of change of the accelerator pedal opening according to a change in the accelerator pedal opening;

[0032] If the rate of change of the accelerator pedal opening is less than a preset rate of change, the speed state is a non-accelerated state;

[0033] If the rate of change of the opening of the accelerator pedal is not less than the preset rate of change, the speed state is an acceleration state.

[0034] Accordingly, an embodiment of the present invention discloses a transfer case control device, which is applied to a 6x6 vehicle; the device includes:

[0035] An acquisition module is used to obtain the current speed state of the vehicle, engine speed, transmission output shaft speed and vehicle state;

[0036] The detection module is configured to detect whether a transfer case locking rejection condition is met based on the speed state, the engine speed, the transmission output shaft speed, and the vehicle state; and if so, call an execution module.

[0037] The execution module refuses to lock the transfer case.

[0038] Optionally, the detection module includes:

[0039] A first detection submodule is configured to detect whether the speed state satisfies the first subcondition; if so, calling a second detection submodule;

[0040] A second detection submodule is configured to detect whether the engine speed satisfies the second subcondition; if so, calling a third detection submodule;

[0041] A third detection submodule is configured to detect whether the transmission output shaft speed satisfies a third subcondition; if so, calling a fourth detection submodule;

[0042] A fourth detection submodule is configured to detect whether the vehicle state satisfies a fourth subcondition; if so, calling a condition satisfaction submodule;

[0043] The condition satisfaction submodule is used to satisfy the transfer case locking rejection condition.

[0044] Optionally, the first detection submodule includes:

[0045] A first detection unit is used to detect whether the current speed state of the vehicle is an accelerating state;

[0046] The first judgment unit is configured to satisfy the first sub-condition if the speed state is the acceleration state.

[0047] Optionally, the second detection submodule includes:

[0048] a second detection unit, configured to detect whether a current engine speed of the vehicle is greater than a preset engine speed;

[0049] The second judgment unit is configured to satisfy the second sub-condition if the engine speed is greater than the preset engine speed.

[0050] Optionally, the third detection submodule includes:

[0051] a third detection unit, configured to detect whether a current transmission output shaft speed of the vehicle is greater than a preset transmission output shaft speed;

[0052] The third judgment unit is configured to satisfy the third sub-condition if the transmission output shaft speed is greater than the preset transmission output shaft speed.

[0053] Optionally, the vehicle state includes a vehicle speed; the fourth sub-condition includes a first preset vehicle speed; and the fourth detection submodule includes:

[0054] a fourth detection unit, configured to detect whether the current speed of the vehicle is less than the first preset speed;

[0055] The fourth judgment unit is configured to determine whether the fourth sub-condition is satisfied if the vehicle speed is less than the first preset vehicle speed.

[0056] Optionally, the vehicle state further includes vehicle speed and chassis height; the fourth sub-condition includes a second preset vehicle speed and a preset chassis height; and the fourth detection submodule further includes:

[0057] a fifth detection unit, configured to detect whether a current speed of the vehicle is less than a second preset speed, and whether a current chassis height is less than a preset chassis height;

[0058] The fifth judgment unit is configured to determine that the fourth sub-condition is satisfied if the vehicle speed is less than a second preset vehicle speed and the chassis height is less than the preset chassis height.

[0059] Optionally, the acquisition module includes:

[0060] An acquisition submodule, configured to acquire a current opening change of the accelerator pedal of the vehicle;

[0061] a determination submodule, configured to determine a rate of change of the accelerator pedal opening according to a change in the accelerator pedal opening;

[0062] A first judgment submodule is configured to determine that the speed state is a non-accelerated state if the rate of change of the opening of the accelerator pedal is less than a preset rate of change;

[0063] The second judgment submodule is configured to determine that the speed state is an acceleration state if the rate of change of the opening of the accelerator pedal is not less than the preset rate of change.

[0064] Correspondingly, the present invention also discloses a vehicle, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned transfer case control method when executing the computer program.

[0065] Correspondingly, the present invention further discloses a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned transfer case control method are implemented.

[0066] The embodiments of the present invention include the following advantages:

[0067] By acquiring the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status, the system detects whether the transfer case lock rejection conditions are met. If so, the transfer case locks. This system then determines the slippage of the two wheels on the center axle and the vehicle's motion state, and then determines whether to unlock the transfer case. This prevents the transfer case from engaging, protects the vehicle's drivetrain, and prevents loss of driving force that could affect escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 is a flow chart of steps of a transfer case control method provided by an embodiment of the present invention;

[0069] Figure 2 is a flowchart of the steps for detecting a transfer case lock rejection condition provided by an embodiment of the present invention;

[0070] Figure 3 This is a structural block diagram of a transfer case control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0071] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0072] In the prior art, when the left and right wheels on the center axle cannot be detected to be slipping, the transfer case remains locked, causing gear snagging. To address this technical problem, the present invention provides a transfer case control method. The core concept is to obtain the current vehicle speed, engine speed, transmission output shaft speed, and vehicle status. Based on these conditions, the method detects whether a transfer case lock rejection condition is met. If so, the transfer case locks.

[0073] Reference Figure 1 , shows a flow chart of the steps of a transfer case control method provided by an embodiment of the present invention, the method being applied to a 6x6 vehicle; the method comprising:

[0074] Step 101, obtain the current speed state of the vehicle, engine speed, transmission output shaft speed and vehicle state.

[0075] In an embodiment of the present invention, when a vehicle is stuck while driving in 6H mode, the wheel speeds of the four front and rear axle wheels equipped with wheel speed sensors are zero, and the wheel speed differentials between the four wheels are also zero. At this time, if the driver steps on the vehicle's accelerator pedal, the vehicle engine still outputs power, but the instrument panel displays a zero speed. The transfer case sends a lock request signal to the transfer case controller, but the transfer case controller does not immediately lock the transfer case. Locking the transfer case at this point could easily cause the transfer case to jam. The transfer case controller can determine whether the transfer case meets unlock conditions based on the vehicle's actual conditions. If the unlock conditions are met, the transfer case controller refuses to lock the transfer case. The transfer case controller of the present application determines whether to lock the transfer case based on the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status. The vehicle status can be either the vehicle's speed or the vehicle's speed and chassis height. A sensor can be provided on the vehicle chassis to detect the chassis height of the vehicle chassis from the ground in real time. The control method of the present application is applied to a transfer case controller and can also be applied to a vehicle, where the vehicle controls the transfer case. In the present application, the transfer case controller can receive a vehicle speed state signal, an engine speed signal, a transmission output shaft speed signal, and a vehicle state signal.

[0076] In one embodiment, the current speed state of the vehicle can be determined by obtaining the current change in the opening of the vehicle's accelerator pedal, determining the rate of change of the accelerator pedal opening based on the change in the accelerator pedal opening, and if the rate of change of the accelerator pedal opening is less than a preset rate, the current speed state of the vehicle is a non-accelerated state; if the rate of change of the accelerator pedal opening is less than the preset rate, the speed state is an accelerated state. For example, if the rate of change of the accelerator pedal opening is determined to be 1% and the preset rate is 5%, which can be set based on actual application, the current speed state of the vehicle is a non-accelerated state. The vehicle's speed state will only be an accelerated state when the accelerator pedal opening changes by at least 5%.

[0077] In one embodiment, the current speed state of the vehicle can be determined in another manner, specifically as follows: the current accelerator pedal opening of the vehicle is obtained, and then the accelerator pedal opening is compared with a preset opening threshold. If the accelerator pedal opening is less than the opening threshold, the current speed state of the vehicle is a non-accelerated state. If the accelerator pedal opening is not less than the opening threshold, the current speed state of the vehicle is an accelerated state. For example, the current accelerator pedal opening is obtained to be 19%, and the preset opening threshold is 15%. The preset opening threshold can be set according to actual application. If the accelerator pedal opening is greater than the opening threshold, the current speed state of the vehicle is determined to be an accelerated state, which also indicates that the driver is currently stepping on the accelerator to speed up the vehicle.

[0078] Step 102 : Based on the speed state, the engine speed, the transmission output shaft speed, and the vehicle state, detecting whether a transfer case locking rejection condition is satisfied.

[0079] In an embodiment of the present invention, after obtaining the current vehicle speed, engine speed, transmission output speed, and vehicle status, the transfer case controller detects whether the speed, engine speed, transmission output shaft speed, and vehicle speed meet the transfer case lock rejection conditions. This allows the transfer case to be locked based on actual conditions to prevent the transfer case from causing gear knocking. The transfer case lock rejection conditions may include detecting whether the speed meets a first sub-condition, detecting whether the engine speed meets a second sub-condition, detecting whether the transmission output shaft speed meets a third sub-condition, and detecting whether the vehicle status meets a fourth sub-condition. A corresponding response may then be made based on the detection results. If the speed, engine speed, transmission output shaft speed, and vehicle status meet the transfer case lock rejection conditions, step 103 is executed.

[0080] In one embodiment, referring to Figure 2 , shows a flowchart of the steps for detecting the transfer case refusal to lock condition provided by an embodiment of the present invention.

[0081] Step 201: Check whether the speed state meets the first sub-condition.

[0082] In one embodiment, it is possible to detect whether the vehicle's current speed state is accelerating. If the vehicle's current speed state is not accelerating, the first sub-condition, i.e., the transfer case lock rejection condition, is not satisfied. In this case, the transfer case can be locked in response to the transfer case lock request signal. If the vehicle's current speed state is accelerating, indicating that the first sub-condition is satisfied, the detection process proceeds to the next step.

[0083] If the vehicle's current speed state is not accelerated, the detection process ends.

[0084] Step 202: Check whether the engine speed meets the second sub-condition.

[0085] In one embodiment, if it is detected that the current speed state of the vehicle is an acceleration state, the current engine speed of the vehicle is further detected to see if it is greater than a preset engine speed. The preset engine speed can be specifically set according to actual conditions, and this application does not specifically limit this. If the current engine speed of the vehicle is not greater than the preset speed, the second sub-condition is not met, and the transfer case can be locked in response to the signal requesting the transfer case to be locked. If the current engine speed of the vehicle is greater than the preset engine speed, the second sub-condition is met and the detection process can continue to the next step. For example: if it is detected that the current engine speed of the vehicle is 900r / min and the preset engine speed is 1000r / min, the current engine speed of the vehicle is not greater than the preset speed, and the second sub-condition is not met, indicating that the power output of the engine is low. Even if the transfer case is locked, it will not cause the transfer case to be engaged, and the transfer case is protected.

[0086] If the vehicle's current engine speed is not greater than the preset engine speed, the detection process ends.

[0087] Step 203: Check whether the transmission output shaft speed meets the third sub-condition.

[0088] In one embodiment, if it is detected that the current engine speed of the vehicle is greater than the preset engine speed, the current transmission output shaft speed of the vehicle is further detected to see if it is greater than the preset transmission output shaft speed. The preset transmission output shaft speed can be set according to actual conditions and is not specifically limited in this application. If the current transmission output shaft speed of the vehicle is not greater than the preset transmission output shaft speed, the third sub-condition is not met. At this time, the transfer case can be locked in response to the signal requesting the transfer case to lock. If the current transmission output shaft speed of the vehicle is greater than the preset transmission output shaft speed, the third sub-condition is met and the next detection process can be continued. For example: if it is detected that the current transmission output shaft speed of the vehicle is 0 and the preset transmission output shaft speed is 0, the current transmission output shaft speed of the vehicle is not greater than the preset transmission output shaft speed, and the third sub-condition is not met, it indicates that the transmission output shaft has no power output. Even if the transfer case is locked, it will not cause the transfer case to engage, and the transfer case will be protected.

[0089] If the vehicle's current transmission output shaft speed is not greater than the preset transmission output shaft speed, the detection process ends.

[0090] Step 204: Check whether the vehicle speed meets the fourth sub-condition.

[0091] In this application, if it is detected that the current transmission output shaft speed of the vehicle is greater than the preset transmission output shaft, the current vehicle state of the vehicle is further detected to see whether it meets the fourth sub-condition.

[0092] In one embodiment, the vehicle state may include vehicle speed, and the fourth sub-condition may include a first preset speed. Whether the vehicle's current speed is less than the first preset speed is detected. The first preset speed may be determined based on the transmission output shaft speed, the transfer case speed ratio, and the final drive ratio, or may be specifically set based on actual conditions, and is not specifically limited herein. If the vehicle's current speed is not less than the first preset speed, the fourth sub-condition is not met. In this case, the transfer case may be locked in response to a transfer case lock request signal, and the differential lock between the wheels on the vehicle's center axle may be locked simultaneously. If the vehicle's current speed is less than the first preset speed, the fourth sub-condition is met, and the next step may be continued, indicating that two wheels on the vehicle's center axle are slipping. For example: it is detected that the current speed of the vehicle is 20km / h, the first preset speed is 5km / h, and the current speed of the vehicle is not less than the first preset speed, and the fourth sub-condition is not met, indicating that the vehicle is currently driving and is not in a stuck state. At this time, locking the transfer case will not cause the transfer case to engage, and the transfer case will be protected. At the same time, the differential lock between the wheels of the middle bridge can also be locked, increasing the off-road vehicle's ability to pass through bumpy areas or when falling into a pit.

[0093] In another embodiment, the vehicle state may include vehicle speed and chassis height. The fourth sub-condition may include a second preset speed and a preset chassis height. Whether the vehicle's current speed is less than the second preset speed is detected. The second preset speed may be the same as the first preset speed or may be set based on actual conditions, and is not specifically limited in this application. The preset chassis height may be the height of the vehicle chassis from the ground during normal driving. If the vehicle's current speed is not less than the second preset speed and the vehicle's chassis height is not less than the preset chassis height, the fourth sub-condition is not satisfied. In this case, the transfer case may be locked in response to the transfer case lock request signal, and the differential lock between the center axle wheels may be locked simultaneously. If the vehicle's current speed is less than the second preset speed, and the vehicle's current chassis height is less than the preset chassis height, the fourth sub-condition is met and the next step can be continued. When the vehicle is stuck, the wheels slip. At this time, the slipping wheels have no adhesion or low adhesion, and the slipping wheels will bear less vehicle weight or no vehicle weight. The weight of the vehicle will be borne by the non-slipping wheels respectively. The pressure on the non-slipping wheels will increase, the vehicle's chassis will sink, and the chassis height will become lower. When the vehicle meets the first, second, and third sub-conditions, the chassis height becomes lower, and the speed is also lower than the second preset speed, it indicates that the vehicle is stuck, and that the two wheels on the vehicle's center bridge are slipping.

[0094] Step 205: The transfer case locking rejection condition is met.

[0095] In one embodiment, if the vehicle's current speed is detected to be less than a preset speed, the fourth sub-condition is satisfied. At this point, the vehicle's current state satisfies the first, second, third, and fourth sub-conditions in sequence, thereby satisfying the transfer case lock rejection condition.

[0096] Step 103 : The transfer case refuses to lock.

[0097] In one embodiment, if the current speed state of the vehicle, engine speed, transmission output shaft and vehicle state are detected and the conditions for the transfer case to refuse to lock are met in sequence, the transfer case will refuse to lock in response to the signal requesting to lock the transfer case, thereby preventing the transfer case from engaging teeth and protecting the vehicle's transmission system.

[0098] In this embodiment of the present invention, the current vehicle speed, engine speed, transmission output shaft speed, and vehicle status are acquired. Based on these conditions, a check is performed to determine whether the transfer case lock rejection conditions are met. If so, the transfer case locks are rejected. This allows the vehicle's mid-axle wheel slip and vehicle motion to be assessed, and the decision is then made whether to unlock the transfer case, preventing the transfer case from engaging and protecting the vehicle's transmission system.

[0099] It should be noted that for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0100] Reference Figure 3 , shows a structural block diagram of a transfer case control device provided by an embodiment of the present invention, the device is applied to a 6x6 type vehicle; the device includes:

[0101] An acquisition module 301 is used to acquire the current speed state of the vehicle, engine speed, transmission output shaft speed, and vehicle state;

[0102] The detection module 302 is configured to detect whether a transfer case locking rejection condition is satisfied based on the speed state, the engine speed, the transmission output shaft speed, and the vehicle state; and if so, call an execution module.

[0103] The execution module 303 is configured to refuse locking of the transfer case.

[0104] In one embodiment of the present invention, the detection module 302 includes:

[0105] A first detection submodule is configured to detect whether the speed state satisfies the first subcondition; if so, calling a second detection submodule;

[0106] A second detection submodule is configured to detect whether the engine speed satisfies the second subcondition; if so, calling a third detection submodule;

[0107] A third detection submodule is configured to detect whether the transmission output shaft speed satisfies a third subcondition; if so, calling a fourth detection submodule;

[0108] A fourth detection submodule is configured to detect whether the vehicle state satisfies a fourth subcondition; if so, calling a condition satisfaction submodule;

[0109] The condition satisfaction submodule is used to satisfy the transfer case locking rejection condition.

[0110] In one embodiment of the present invention, the first detection submodule includes:

[0111] A first detection unit is used to detect whether the current speed state of the vehicle is an accelerating state;

[0112] The first judgment unit is configured to satisfy the first sub-condition if the speed state is the acceleration state.

[0113] In one embodiment of the present invention, the second detection submodule includes:

[0114] a second detection unit, configured to detect whether a current engine speed of the vehicle is greater than a preset engine speed;

[0115] The second judgment unit is configured to satisfy the second sub-condition if the engine speed is greater than the preset engine speed.

[0116] In one embodiment of the present invention, the third detection submodule includes:

[0117] a third detection unit, configured to detect whether a current transmission output shaft speed of the vehicle is greater than a preset transmission output shaft speed;

[0118] The third judgment unit is configured to satisfy the third sub-condition if the transmission output shaft speed is greater than the preset transmission output shaft speed.

[0119] In one embodiment of the present invention, the vehicle state includes a vehicle speed; the fourth sub-condition includes a first preset vehicle speed; and the fourth detection submodule includes:

[0120] a fourth detection unit, configured to detect whether the current speed of the vehicle is less than the first preset speed;

[0121] The fourth judgment unit is configured to determine whether the fourth sub-condition is satisfied if the vehicle speed is less than the first preset vehicle speed.

[0122] In one embodiment of the present invention, the vehicle state further includes vehicle speed and chassis height; the fourth sub-condition includes a second preset vehicle speed and a preset chassis height; and the fourth detection submodule further includes:

[0123] a fifth detection unit, configured to detect whether a current speed of the vehicle is less than a second preset speed, and whether a current chassis height is less than a preset chassis height;

[0124] The fifth judgment unit is configured to determine that the fourth sub-condition is satisfied if the vehicle speed is less than a second preset vehicle speed and the chassis height is less than the preset chassis height.

[0125] In one embodiment of the present invention, the acquisition module includes:

[0126] An acquisition submodule, configured to acquire a current opening change of the accelerator pedal of the vehicle;

[0127] a determination submodule, configured to determine a rate of change of the accelerator pedal opening according to a change in the accelerator pedal opening;

[0128] A first judgment submodule is configured to determine that the speed state is a non-accelerated state if the rate of change of the opening of the accelerator pedal is less than a preset rate of change;

[0129] The second judgment submodule 301 is configured to determine that the speed state is an acceleration state if the rate of change of the accelerator pedal opening is not less than the preset rate of change.

[0130] In this embodiment of the present invention, an acquisition module is used to obtain the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status. A detection module is used to detect whether the transfer case lock rejection conditions are met based on the speed, engine speed, transmission output shaft speed, and vehicle status. If so, an execution module is invoked to reject the transfer case lock. This determines the slippage of the two wheels on the vehicle's center axle and the vehicle's motion state, and then determines whether to not lock the transfer case, preventing the transfer case from engaging and protecting the vehicle's transmission system.

[0131] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0132] An embodiment of the present invention further provides a vehicle, comprising:

[0133] It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned transfer case control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0134] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned transfer case control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0135] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0136] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining software and hardware. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0137] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the process in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0138] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0139] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0140] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0141] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0142] The above is a detailed introduction to a transfer case control method, device, vehicle and computer-readable storage medium provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A transfer case control method, characterized in that: The method is applied to a 6x6 type vehicle; the method comprises: Get the vehicle's current speed, engine speed, transmission output shaft speed, and vehicle status; detecting whether the current speed state of the vehicle is an accelerating state; if the speed state is the accelerating state, satisfying a first sub-condition; if the first sub-condition is satisfied, detecting whether the engine speed satisfies a second sub-condition; if so, detecting whether the transmission output shaft speed satisfies a third sub-condition; if so, detecting whether the vehicle state satisfies a fourth sub-condition; if so, satisfying a transfer case lock rejection condition; If the transfer case locking rejection condition is met, the transfer case rejects locking; The vehicle state includes a vehicle speed and a chassis height; the fourth sub-condition includes a second preset vehicle speed and a preset chassis height; and detecting whether the vehicle state satisfies the fourth sub-condition includes: Detecting whether the current speed of the vehicle is less than a second preset speed, and whether the current chassis height is less than a preset chassis height; If the vehicle speed is less than the second preset vehicle speed and the chassis height is less than the preset chassis height, the fourth sub-condition is satisfied.

2. The transfer case control method according to claim 1, characterized in that: The detecting whether the engine speed satisfies the second sub-condition includes: detecting whether a current engine speed of the vehicle is greater than a preset engine speed; If the engine speed is greater than the preset engine speed, the second sub-condition is met.

3. The transfer case control method according to claim 1, characterized in that: The detecting whether the transmission output shaft speed satisfies the third sub-condition includes: detecting whether a current transmission output shaft speed of the vehicle is greater than a preset transmission output shaft speed; If the transmission output shaft speed is greater than the preset transmission output shaft speed, the third sub-condition is met.

4. The transfer case control method according to claim 1, characterized in that: The vehicle state also includes a vehicle speed; the fourth sub-condition also includes a first preset vehicle speed; and the detecting whether the vehicle state satisfies the fourth sub-condition further includes: detecting whether the current speed of the vehicle is less than the first preset speed; If the vehicle speed is less than the first preset vehicle speed, the fourth sub-condition is satisfied.

5. The transfer case control method according to claim 1, characterized in that: The obtaining of the current speed state of the vehicle includes: Obtaining a current change in the opening of the accelerator pedal of the vehicle; determining a rate of change of the accelerator pedal opening according to a change in the accelerator pedal opening; If the rate of change of the accelerator pedal opening is less than a preset rate of change, the speed state is a non-accelerated state; If the rate of change of the opening of the accelerator pedal is not less than the preset rate of change, the speed state is an acceleration state.

6. A transfer case control device, characterized in that: The device is applied to a 6x6 type vehicle; the device comprises: An acquisition module is used to obtain the current speed state of the vehicle, engine speed, transmission output shaft speed and vehicle state; a detection module configured to detect whether the current speed state of the vehicle is an accelerating state; if the speed state is the accelerating state, a first sub-condition is satisfied; if the first sub-condition is satisfied, detecting whether the engine speed satisfies a second sub-condition; if so, detecting whether the transmission output shaft speed satisfies a third sub-condition; if so, detecting whether the vehicle state satisfies a fourth sub-condition; if so, a transfer case lock rejection condition is satisfied; an execution module, configured to, if the transfer case locking rejection condition is met, reject the transfer case locking; The vehicle state includes a vehicle speed and a chassis height; the fourth sub-condition includes a second preset vehicle speed and a preset chassis height; the detection module includes: a fifth detection unit, configured to detect whether a current speed of the vehicle is less than a second preset speed, and whether a current chassis height is less than a preset chassis height; The fifth judgment unit is configured to determine that the fourth sub-condition is satisfied if the vehicle speed is less than a second preset vehicle speed and the chassis height is less than the preset chassis height.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the transfer case control method according to any one of claims 1 to 5.

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