Vehicle drive mode switching control method and device based on vehicle weight

Abstract

The present invention discloses a vehicle drive mode switching control method and device based on the vehicle weight. The method comprises: obtaining the operating data of the target vehicle after the target vehicle is powered on and started, wherein the operating data at least includes: the vehicle weight, the engine torque, and the initial drive mode. In the initial drive mode, the multiple wheels of the target vehicle are all drive wheels; determining the target drive mode of the target vehicle at least based on the vehicle weight; and controlling the target vehicle based on the engine torque to switch the target vehicle from the initial drive mode to the target drive mode. The present invention solves the technical problem that the prior art switches the vehicle drive mode based only on the vehicle speed and the transmission gear position without considering the vehicle weight and the engine load, resulting in difficulty in balancing the improvement of the vehicle power performance and the reduction of the vehicle fuel consumption during vehicle driving.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle drive control, and in particular to a vehicle drive mode switching control method and device based on vehicle weight. Background Art

[0002] In order to reduce truck fuel consumption, existing trucks are usually equipped with a part-time drive through-axle. The part-time drive axle can automatically switch between 6×4 drive mode and 6×2 drive mode according to the vehicle's driving conditions. Among them, the 6×4 drive mode refers to the presence of 4 drive wheels during the driving process of a 6-wheel truck, and the 6×2 drive mode refers to the presence of 2 drive wheels during the driving process of a 6-wheel truck.

[0003] In the existing technology, the switching of vehicle drive modes is usually controlled based on vehicle operating data such as vehicle speed, transmission gear, throttle opening, vehicle acceleration and auxiliary braking torque. However, when the vehicle drive mode is switched to 6×2 drive mode in order to save fuel, the vehicle engine should be kept in the optimal load operating range. Controlling the switching of drive modes based only on vehicle speed and transmission gear may result in the vehicle being in a high-speed high-throttle operating condition with a low-speed transmission, making it difficult to strike a balance between vehicle power performance and reducing vehicle fuel consumption.

[0004] From the above analysis, it can be seen that the above-mentioned existing technology only switches the vehicle's drive mode according to the vehicle speed and transmission gear without considering the vehicle weight and engine load, resulting in difficulty in balancing the improvement of the vehicle's power performance and the reduction of the vehicle's fuel consumption during vehicle driving. No effective solution has been proposed so far. Summary of the Invention

[0005] Embodiments of the present invention provide a vehicle drive mode switching control method and device based on vehicle weight, which at least solves the technical problem that the existing technology switches the vehicle drive mode based only on the vehicle speed and transmission gear without considering the vehicle weight and engine load, resulting in difficulty in balancing the improvement of the vehicle's power performance and the reduction of the vehicle's fuel consumption during vehicle driving.

[0006] According to one aspect of an embodiment of the present invention, a vehicle driving mode switching control method based on vehicle weight is provided, comprising:

[0007] After the target vehicle is powered on and started, operating data of the target vehicle is obtained, wherein the operating data includes at least: a total vehicle weight, engine torque, and an initial drive mode, wherein multiple wheels of the target vehicle are drive wheels in the initial drive mode; a target drive mode of the target vehicle is determined based on at least the total vehicle weight; and the target vehicle is controlled based on the engine torque to switch the target vehicle from the initial drive mode to the target drive mode.

[0008] Optionally, determining the target driving mode of the target vehicle at least based on the weight of the entire vehicle includes: comparing the weight of the entire vehicle with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle; and determining the target driving mode at least based on the first comparison result.

[0009] Optionally, the preset weight intervals include: a first interval, a second interval and a third interval, the upper weight limit of the first interval is less than the lower weight limit of the second interval, the upper weight limit of the second interval is less than the lower weight limit of the third interval, and determining the target driving mode at least based on the first comparison result includes: determining that the weight of the entire vehicle belongs to the first interval in response to the first comparison result, determining that the load type is no-load, and in the target driving mode, some of the wheels of the target vehicle are driving wheels.

[0010] Optionally, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes: comparing the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle has shifted successfully to obtain a first detection result; in response to the first detection result, determining that the center axle has shifted successfully, controlling the target vehicle's rear axle shift actuator to disconnect to switch the target vehicle from the initial driving mode to the target driving mode.

[0011] Optionally, the above-mentioned vehicle driving mode switching control method based on the weight of the entire vehicle also includes: controlling the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the engine torque is greater than or equal to a preset torque threshold based on the second comparison result; determining that the mid-bridge gear shift fails based on the first detection result.

[0012] Optionally, the operating data also includes a transmission gear, and determining the target driving mode at least based on the first comparison result includes: in response to the first comparison result, determining that the vehicle weight belongs to the second interval, determining the load type is half load; in response to the load type being half load, comparing the transmission gear with the first preset gear to obtain a third comparison result; in response to the third comparison result, determining that the transmission gear is higher than the first preset gear, and determining the target driving mode.

[0013] Optionally, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes: comparing the engine torque with a preset torque threshold to obtain a fourth comparison result; in response to the fourth comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle has shifted successfully to obtain a second detection result; in response to the second detection result, determining that the center axle has shifted successfully, controlling the target vehicle's rear axle shift actuator to disconnect to switch the target vehicle from the initial driving mode to the target driving mode.

[0014] Optionally, the above-mentioned vehicle drive mode switching control method based on the weight of the entire vehicle also includes: in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial drive mode: determining that the transmission gear is lower than or equal to the first preset gear based on the third comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the fourth comparison result; determining that the mid-bridge gear shift has failed based on the second detection result.

[0015] Optionally, the operating data also includes a transmission gear, and determining the target driving mode at least based on the first comparison result includes: in response to the first comparison result, determining that the vehicle weight belongs to the third interval, determining that the load type is fully loaded; in response to the load type being fully loaded, comparing the transmission gear with a second preset gear to obtain a fifth comparison result, wherein the second preset gear is higher than the first preset gear; in response to the fifth comparison result, determining that the transmission gear is higher than the second preset gear, and determining the target driving mode.

[0016] Optionally, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes: comparing the engine torque with a preset torque threshold to obtain a sixth comparison result; in response to the sixth comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle has shifted successfully to obtain a third detection result; in response to the third detection result, determining that the center axle has shifted successfully, controlling the target vehicle's rear axle shift actuator to disconnect to switch the target vehicle from the initial driving mode to the target driving mode.

[0017] Optionally, the above-mentioned vehicle drive mode switching control method based on the weight of the entire vehicle also includes: in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial drive mode: determining that the transmission gear is lower than or equal to the second preset gear based on the fifth comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the sixth comparison result; determining that the mid-bridge gear shift has failed based on the third detection result.

[0018] According to another aspect of an embodiment of the present invention, a vehicle driving mode switching control device based on vehicle weight is provided, comprising:

[0019] An acquisition module is used to acquire operating data of the target vehicle after the target vehicle is powered on and started, wherein the operating data includes at least: vehicle weight, engine torque, and an initial driving mode. In the initial driving mode, multiple wheels of the target vehicle are driving wheels; a determination module is used to determine a target driving mode of the target vehicle based on at least the vehicle weight; and a control module is used to control the target vehicle based on the engine torque to switch the target vehicle from the initial driving mode to the target driving mode.

[0020] Optionally, the above-mentioned determination module is also used to: compare the weight of the entire vehicle with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle; and determine the target driving mode at least based on the first comparison result.

[0021] Optionally, the preset weight intervals include: a first interval, a second interval and a third interval, the upper weight limit of the first interval is less than the lower weight limit of the second interval, and the upper weight limit of the second interval is less than the lower weight limit of the third interval. The above-mentioned determination module is also used to: determine in response to the first comparison result that the weight of the entire vehicle belongs to the first interval, determine that the load type is no-load, and in the target driving mode, some of the wheels of the target vehicle are driving wheels.

[0022] Optionally, the above-mentioned control module is also used to: compare the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determine that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shifts successfully to obtain a first detection result; in response to the first detection result, determine that the center axle shifts successfully, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0023] Optionally, the above-mentioned vehicle driving mode switching control device based on the weight of the entire vehicle also includes: a first maintaining module, used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the engine torque is greater than or equal to a preset torque threshold based on the second comparison result; determining that the mid-bridge gear shift fails based on the first detection result.

[0024] Optionally, the operating data also includes a transmission gear, and the above-mentioned determination module is further used to: determine that the vehicle weight belongs to the second interval in response to the first comparison result, and determine that the load type is half load; in response to the load type being half load, compare the transmission gear with the first preset gear to obtain a third comparison result; in response to the third comparison result, determine that the transmission gear is higher than the first preset gear, and determine the target driving mode.

[0025] Optionally, the above-mentioned control module is also used to: compare the engine torque with a preset torque threshold to obtain a fourth comparison result; in response to the fourth comparison result, determine that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shifts successfully to obtain a second detection result; in response to the second detection result, determine that the center axle shifts successfully, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0026] Optionally, the above-mentioned vehicle drive mode switching control device based on the weight of the entire vehicle also includes: a second maintaining module, used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the transmission gear is lower than or equal to the first preset gear based on the third comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the fourth comparison result; determining that the mid-bridge gear shift has failed based on the second detection result.

[0027] Optionally, the operating data also includes a transmission gear, and the above-mentioned determination module is further used to: determine that the vehicle weight belongs to the third interval in response to the first comparison result, and determine that the load type is fully loaded; in response to the load type being fully loaded, compare the transmission gear with the second preset gear to obtain a fifth comparison result, wherein the second preset gear is higher than the first preset gear; in response to the fifth comparison result, determine that the transmission gear is higher than the second preset gear, and determine the target driving mode.

[0028] Optionally, the above-mentioned control module is also used to: compare the engine torque with a preset torque threshold to obtain a sixth comparison result; in response to the sixth comparison result, it is determined that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shifts successfully to obtain a third detection result; in response to the third detection result, it is determined that the center axle shifts successfully, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0029] Optionally, the above-mentioned vehicle drive mode switching control device based on the weight of the entire vehicle also includes: a third maintaining module, which is used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the transmission gear is lower than or equal to the second preset gear based on the fifth comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the sixth comparison result; determining that the mid-bridge gear shift has failed based on the third detection result.

[0030] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements any one of the aforementioned vehicle drive mode switching control methods based on vehicle weight.

[0031] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the aforementioned vehicle drive mode switching control methods based on the weight of the entire vehicle.

[0032] According to another aspect of an embodiment of the present invention, a vehicle is also provided, comprising an on-board memory and an on-board processor, wherein a computer program is stored in the on-board memory, and the on-board processor is configured to run the computer program to execute any one of the aforementioned vehicle drive mode switching control methods based on the weight of the entire vehicle.

[0033] In an embodiment of the present invention, after a target vehicle is powered on and started, operating data of the target vehicle is obtained, wherein the operating data includes at least vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels; then, a target driving mode of the target vehicle is determined based on at least the vehicle weight; and finally, the target vehicle is controlled based on the engine torque to switch the target vehicle from the initial driving mode to the target driving mode. By determining the load type of the target vehicle based on the vehicle weight, and then performing targeted driving mode switching control under three different load types, the purpose of assisting in switching the vehicle driving mode based on the vehicle weight is achieved, thereby achieving the technical effect of improving the adaptability of the vehicle driving mode switching method to different load types and taking into account the improvement of the vehicle power performance and operating economy under different load conditions, thereby solving the technical problem of the prior art that the vehicle driving mode switching control is based only on the vehicle speed and transmission gear position without considering the vehicle weight and engine load, resulting in difficulty in balancing the improvement of the vehicle power performance and the reduction of the vehicle fuel consumption during vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 This is a hardware structure block diagram of a vehicle terminal for an optional vehicle driving mode switching control method based on vehicle weight according to an embodiment of the present invention;

[0036] Figure 2 is a flow chart of a vehicle driving mode switching control method based on vehicle weight according to an embodiment of the present invention;

[0037] Figure 3is a schematic diagram of an optional vehicle driving mode switching control process based on vehicle weight according to an embodiment of the present invention;

[0038] Figure 4 is a schematic diagram of another optional vehicle driving mode switching control process based on vehicle weight according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of another optional vehicle driving mode switching control process based on vehicle weight according to an embodiment of the present invention;

[0040] Figure 6 4 is a structural block diagram of a vehicle driving mode switching control device based on vehicle weight according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] According to an embodiment of the present invention, a method embodiment of a vehicle drive mode switching control method based on the weight of the entire vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0044] Figure 1 is a hardware structure block diagram of a vehicle terminal for an optional vehicle driving mode switching control method based on vehicle weight according to an embodiment of the present invention, such as Figure 1 As shown, the vehicle terminal 10 (or mobile device 10) may include one or more processors 102 (the processor 102 may include but is not limited to a processing device such as a microcontroller unit (MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may also include: a display device 110, an input / output device 108 (i.e., an I / O device), a universal serial bus (USB) port (which may be included as one of the ports of a computer bus, not shown in the figure), a network interface (not shown in the figure), a power supply (not shown in the figure) and / or a camera (not shown in the figure). It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the vehicle terminal 10. For example, the vehicle terminal 10 may also include Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0045] It should be noted that the one or more processors 102 and / or other data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuit may be a single independent processing module, or may be fully or partially integrated into any of the other components in the vehicle terminal 10 (or mobile device).

[0046] The memory 104 can be used to store software programs and modules for application software, such as the program instructions / data storage device corresponding to the vehicle drive mode switching control method based on vehicle weight in an embodiment of the present invention. The processor 102 executes the software programs and modules stored in the memory 104 to perform various functional applications and data processing, thereby implementing the above-mentioned vehicle drive mode switching control method based on vehicle weight. The memory 104 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories may be connected to the vehicle terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0047] The transmission device 106 is used to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the communications provider of the vehicle terminal 10. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0048] Under the above operating environment, the embodiment of the present invention provides the following Figure 2 The vehicle driving mode switching control method based on the vehicle weight is shown. Figure 2 FIG. 1 is a flow chart of a vehicle driving mode switching control method based on vehicle weight according to an embodiment of the present invention. Figure 2 As shown, the method includes the following implementation steps:

[0049] Step S201, after the target vehicle is powered on and started, obtaining operating data of the target vehicle, wherein the operating data includes at least: vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels;

[0050] Step S202, determining a target driving mode of the target vehicle based at least on the vehicle weight;

[0051] Step S203 : controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode.

[0052] In the present invention, the load state of the target vehicle can be determined based on the weight of the entire vehicle. Therefore, when switching the driving mode, under the condition that the target vehicle is in different load states, the target driving mode of the target vehicle under different driving conditions can be identified and determined based on the current engine torque and initial driving mode of the target vehicle, thereby improving the efficiency of the vehicle's transmission system, reducing the fuel consumption of the vehicle, and improving the operating economy of the vehicle while ensuring the power performance of the vehicle.

[0053] In an embodiment of the present invention, after a target vehicle is powered on and started, operating data of the target vehicle is obtained, wherein the operating data includes at least vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels; then, a target driving mode of the target vehicle is determined based on at least the vehicle weight; and finally, the target vehicle is controlled based on the engine torque to switch the target vehicle from the initial driving mode to the target driving mode. By determining the load type of the target vehicle based on the vehicle weight, and then performing targeted driving mode switching control under three different load types, the purpose of assisting in switching the vehicle driving mode based on the vehicle weight is achieved, thereby achieving the technical effect of improving the adaptability of the vehicle driving mode switching method to different load types and taking into account the improvement of the vehicle power performance and operating economy under different load conditions, thereby solving the technical problem of the prior art that the vehicle driving mode switching control is based only on the vehicle speed and transmission gear position without considering the vehicle weight and engine load, resulting in difficulty in balancing the improvement of the vehicle power performance and the reduction of the vehicle fuel consumption during vehicle driving.

[0054] The above method of the embodiment of the present invention is further introduced below.

[0055] In an optional embodiment, in step S202, determining the target driving mode of the target vehicle at least based on the vehicle weight includes:

[0056] Step S204: comparing the vehicle weight with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle;

[0057] Step S205 : determining a target driving mode at least according to the first comparison result.

[0058] Wherein, in step S205, the preset weight intervals include: a first interval, a second interval, and a third interval, the upper weight limit of the first interval is less than the lower weight limit of the second interval, and the upper weight limit of the second interval is less than the lower weight limit of the third interval, and determining the target driving mode based on at least the first comparison result includes:

[0059] Step S251 : In response to the first comparison result, it is determined that the vehicle weight belongs to the first interval, the load type is determined to be no-load, and in the target driving mode, some wheels of the target vehicle are driving wheels.

[0060] As an optional embodiment, the two threshold values ​​of the vehicle weight can be 20 tons and 30 tons respectively. Thus, the first interval can be that the vehicle weight is less than 20 tons, the second interval can be that the vehicle weight is greater than or equal to 20 tons and the vehicle weight is less than 30 tons, and the third interval can be that the vehicle weight is greater than 30 tons.

[0061] The following combination Figure 3 The above method is further explained.

[0062] like Figure 3 As shown, after the target vehicle is powered on and the time-sharing drive function is turned on, the through-bridge time-sharing drive system controller (hereinafter referred to as the "controller") obtains three types of vehicle operating data: the vehicle's transmission gear, vehicle weight, and engine torque. Further, it determines whether the vehicle weight belongs to a preset weight range. When the vehicle weight is less than 20 tons, it is determined that the target vehicle is in an unloaded state. At this time, the drive mode of the target vehicle can be switched from a 6×4 drive mode to a 6×2 drive mode.

[0063] It should be noted that the target vehicle enters the 6×4 driving mode by default after the vehicle is powered on. In addition, in order to ensure the accuracy of the obtained vehicle weight, the vehicle weight can be obtained after a preset time (e.g., 60 seconds) after the vehicle is powered on.

[0064] In an optional embodiment, in step S203, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes:

[0065] Step S231, comparing the engine torque with a preset torque threshold to obtain a second comparison result;

[0066] Step S232, in response to the second comparison result determining that the engine torque is less than the preset torque threshold, controlling the mid-axle shift actuator of the target vehicle to be disconnected, and detecting whether the mid-axle shift is successful, to obtain a first detection result;

[0067] Step S233 , in response to the first detection result determining that the mid-axle shift is successful, controlling the rear axle shift actuator of the target vehicle to be disconnected, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0068] Still Figure 3 As shown, after determining that the vehicle weight of the target vehicle is less than 20 tons, the vehicle is ready to switch to the 6×2 drive mode, and the controller further determines whether the current engine torque meets the drive mode switching conditions. For example, the controller determines whether the current engine torque is less than 300 Nm (the above-mentioned preset torque threshold). When it is determined that the current engine torque is less than 300 Nm, the controller controls the middle axle separation solenoid valve to control the middle axle shift actuator to disconnect, and when the detection determines that the middle axle shift actuator is successfully disconnected, the controller controls the rear axle separation solenoid valve to control the rear axle shift drive mechanism to disconnect, so that the target vehicle successfully switches from the 6×4 drive mode to the 6×2 drive mode.

[0069] It should be noted that, in the present invention, when the middle axle shift actuator of the through-bridge is in the engaged state and the rear axle shift actuator is in the engaged state, the target vehicle is in the 6×4 drive mode. In addition, the controller can control the air circuit by controlling the on and off of the solenoid valve to achieve the engagement and disconnection of the middle axle shift actuator and the engagement and disconnection of the rear axle shift actuator.

[0070] In an optional embodiment, the vehicle driving mode switching control method based on vehicle weight further includes:

[0071] Step S206 , in response to one of the following conditions being met, controlling the target vehicle to maintain the initial driving mode: determining based on the second comparison result that the engine torque is greater than or equal to a preset torque threshold; determining based on the first detection result that the mid-bridge shift fails.

[0072] Still Figure 3 As shown, under the condition that the vehicle weight of the target vehicle belongs to the first interval, when it is determined that the current engine torque is greater than or equal to 300 Nm, or when it is determined that the mid-bridge shift actuator fails to shift, the target vehicle is controlled to remain in the 6×4 drive mode.

[0073] In an optional embodiment, in step S205, the operating data further includes a transmission gear position, and determining the target driving mode at least according to the first comparison result includes:

[0074] Step S252 , in response to the first comparison result, determining that the vehicle weight belongs to the second interval, and determining the load type as half load;

[0075] Step S253, in response to the load type being half load, comparing the transmission gear position with the first preset gear position to obtain a third comparison result;

[0076] Step S254 , in response to determining that the transmission gear is higher than the first preset gear as a result of the third comparison, a target driving mode is determined.

[0077] And, in step S203, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes:

[0078] Step S234, comparing the engine torque with a preset torque threshold to obtain a fourth comparison result;

[0079] Step S235, in response to the fourth comparison result determining that the engine torque is less than the preset torque threshold, controlling the mid-axle shift actuator of the target vehicle to be disconnected, and detecting whether the mid-axle shift is successful, to obtain a second detection result;

[0080] Step S236 , in response to the second detection result determining that the mid-axle shift is successful, controlling the rear axle shift actuator of the target vehicle to be disconnected to switch the target vehicle from the initial driving mode to the target driving mode.

[0081] The following combination Figure 4 The above method is further explained.

[0082] like Figure 4 As shown, when it is determined that the vehicle weight of the target vehicle belongs to the second interval, it is determined that the target vehicle is in a half-loaded state, and the controller further determines whether the current transmission gear meets the drive mode switching conditions. For example, the controller determines whether the current transmission gear is higher than 6th gear (the above-mentioned first preset gear). When it is determined that the transmission gear is higher than 6th gear, the controller further determines whether the current engine torque is less than 300 Nm (the above-mentioned preset torque threshold). When it is determined that the current engine torque is less than 300 Nm, the controller controls the middle axle separation solenoid valve to operate to control the middle axle shift actuator to disconnect, and when it is detected that the middle axle shift actuator is successfully disconnected, the controller controls the rear axle separation solenoid valve to operate to control the rear axle shift drive mechanism to disconnect, so that the target vehicle successfully switches from 6×4 drive mode to 6×2 drive mode.

[0083] In an optional embodiment, the vehicle driving mode switching control method based on vehicle weight further includes:

[0084] Step S207, in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial driving mode: determining based on the third comparison result that the transmission gear is lower than or equal to the first preset gear; determining based on the fourth comparison result that the engine torque is greater than or equal to the preset torque threshold; determining based on the second detection result that the mid-bridge gear shift fails.

[0085] Still Figure 4 As shown, under the condition that the vehicle weight of the target vehicle belongs to the second interval, when it is determined that the current transmission gear is equal to or lower than 6th gear, or when it is determined that the current engine torque is greater than or equal to 300 Nm, or when it is determined that the mid-bridge shift actuator fails to shift, the target vehicle is controlled to remain in 6×4 drive mode.

[0086] In an optional embodiment, in step S205, the operating data further includes a transmission gear position, and determining the target driving mode at least according to the first comparison result includes:

[0087] Step S255 , in response to the first comparison result, determining that the vehicle weight belongs to the third interval, and determining the load type as fully loaded;

[0088] Step S252, in response to the load type being full load, comparing the transmission gear position with the second preset gear position to obtain a fifth comparison result, wherein the second preset gear position is higher than the first preset gear position;

[0089] Step S253 , in response to the fifth comparison result determining that the transmission gear is higher than the second preset gear, a target driving mode is determined.

[0090] And, in step S203, controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes:

[0091] Step S237, comparing the engine torque with a preset torque threshold to obtain a sixth comparison result;

[0092] Step S238, in response to the sixth comparison result determining that the engine torque is less than the preset torque threshold, controlling the mid-axle shift actuator of the target vehicle to be disconnected, and detecting whether the mid-axle shift is successful, to obtain a third detection result;

[0093] Step S239 , in response to the third detection result determining that the mid-axle shift is successful, controlling the rear axle shift actuator of the target vehicle to be disconnected to switch the target vehicle from the initial driving mode to the target driving mode.

[0094] The following combination Figure 5 The above method is further explained.

[0095] like Figure 5 As shown, when it is determined that the vehicle weight of the target vehicle belongs to the third interval, it is determined that the target vehicle is in a fully loaded state, and the controller further determines whether the current transmission gear meets the drive mode switching conditions. For example, the controller determines whether the current transmission gear is higher than 9th gear (the above-mentioned second preset gear). When it is determined that the transmission gear is higher than 9th gear, the controller further determines whether the current engine torque is less than 300 Nm (the above-mentioned preset torque threshold). When it is determined that the current engine torque is less than 300 Nm, the controller controls the middle axle separation solenoid valve to operate to control the middle axle shift actuator to disconnect, and when it is detected that the middle axle shift actuator is successfully disconnected, the controller controls the rear axle separation solenoid valve to operate to control the rear axle shift drive mechanism to disconnect, so that the target vehicle successfully switches from 6×4 drive mode to 6×2 drive mode.

[0096] In an optional embodiment, the vehicle driving mode switching control method based on vehicle weight further includes:

[0097] Step S208, in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial driving mode: determining based on the fifth comparison result that the transmission gear is lower than or equal to the second preset gear; determining based on the sixth comparison result that the engine torque is greater than or equal to the preset torque threshold; determining based on the third detection result that the mid-bridge gear shift has failed.

[0098] Still Figure 5 As shown, under the condition that the vehicle weight of the target vehicle belongs to the third interval, when it is determined that the current transmission gear is equal to or lower than 9th gear, or when it is determined that the current engine torque is greater than or equal to 300 Nm, or when it is determined that the mid-bridge shift actuator fails to shift, the target vehicle is controlled to maintain the 6×4 drive mode.

[0099] In the technical solution provided by the present invention, the preset weight range, the preset torque threshold, the first preset gear, and the second preset gear can be adjusted according to actual needs, and the above embodiments are only examples.

[0100] In an embodiment of the present invention, after a target vehicle is powered on and started, operating data of the target vehicle is obtained, wherein the operating data includes at least vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels; then, a target driving mode of the target vehicle is determined based on at least the vehicle weight; and finally, the target vehicle is controlled based on the engine torque to switch the target vehicle from the initial driving mode to the target driving mode. By determining the load type of the target vehicle based on the vehicle weight, and then performing targeted driving mode switching control under three different load types, the purpose of assisting in switching the vehicle driving mode based on the vehicle weight is achieved, thereby achieving the technical effect of improving the adaptability of the vehicle driving mode switching method to different load types and taking into account the improvement of the vehicle power performance and operating economy under different load conditions, thereby solving the technical problem of the prior art that the vehicle driving mode switching control is based only on the vehicle speed and transmission gear position without considering the vehicle weight and engine load, resulting in difficulty in balancing the improvement of the vehicle power performance and the reduction of the vehicle fuel consumption during vehicle driving.

[0101] In this embodiment, a vehicle drive mode switching control device based on vehicle weight is also provided. This device is used to implement the above-mentioned embodiments and preferred embodiments, and details already described will not be repeated. As used below, a "module" refers to a combination of software and / or hardware that can implement a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0102] Figure 6FIG. 1 is a structural block diagram of a vehicle driving mode switching control device based on vehicle weight according to an embodiment of the present invention. Figure 6 As shown, the device includes:

[0103] An acquisition module 601 is configured to acquire operating data of a target vehicle after the target vehicle is powered on and started, wherein the operating data includes at least vehicle weight, engine torque, and an initial driving mode, wherein the multiple wheels of the target vehicle are all driving wheels in the initial driving mode;

[0104] A determination module 602 is configured to determine a target driving mode of a target vehicle based at least on the vehicle weight;

[0105] The control module 603 is configured to control the target vehicle according to the engine torque, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0106] Optionally, the above-mentioned determination module 602 is further used to: compare the vehicle weight with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle; and determine the target driving mode at least based on the first comparison result.

[0107] Optionally, the preset weight intervals include: a first interval, a second interval and a third interval, the upper weight limit of the first interval is less than the lower weight limit of the second interval, and the upper weight limit of the second interval is less than the lower weight limit of the third interval. The above-mentioned determination module 602 is also used to: determine in response to the first comparison result that the weight of the entire vehicle belongs to the first interval, determine that the load type is no-load, and in the target driving mode, some of the wheels of the target vehicle are driving wheels.

[0108] Optionally, the above-mentioned control module 603 is also used to: compare the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determine that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shifts successfully to obtain a first detection result; in response to the first detection result, determine that the center axle shifts successfully, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0109] Optionally, the above-mentioned vehicle drive mode switching control device based on the weight of the entire vehicle also includes: a first maintaining module 604 (not shown in the figure), which is used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the engine torque is greater than or equal to the preset torque threshold based on the second comparison result; determining that the mid-bridge gear shift fails based on the first detection result.

[0110] Optionally, the operating data also includes a transmission gear, and the above-mentioned determination module 602 is further used to: determine that the vehicle weight belongs to the second interval in response to the first comparison result, and determine that the load type is half load; in response to the load type being half load, compare the transmission gear with the first preset gear to obtain a third comparison result; in response to the third comparison result, determine that the transmission gear is higher than the first preset gear, and determine the target driving mode.

[0111] Optionally, the above-mentioned control module 603 is also used to: compare the engine torque with a preset torque threshold to obtain a fourth comparison result; in response to the fourth comparison result, it is determined that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shift is successful to obtain a second detection result; in response to the second detection result, it is determined that the center axle shift is successful, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0112] Optionally, the above-mentioned vehicle drive mode switching control device based on the weight of the entire vehicle also includes: a second maintaining module 605 (not shown in the figure), which is used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the transmission gear is lower than or equal to the first preset gear based on the third comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the fourth comparison result; determining that the mid-bridge gear shift has failed based on the second detection result.

[0113] Optionally, the operating data also includes a transmission gear, and the above-mentioned determination module 602 is further used to: determine that the vehicle weight belongs to the third interval in response to the first comparison result, and determine that the load type is fully loaded; in response to the load type being fully loaded, compare the transmission gear with the second preset gear to obtain a fifth comparison result, wherein the second preset gear is higher than the first preset gear; in response to the fifth comparison result, determine that the transmission gear is higher than the second preset gear, and determine the target driving mode.

[0114] Optionally, the above-mentioned control module 603 is also used to: compare the engine torque with a preset torque threshold to obtain a sixth comparison result; in response to the sixth comparison result, it is determined that the engine torque is less than the preset torque threshold, control the target vehicle's center axle shift actuator to disconnect, and detect whether the center axle shift is successful to obtain a third detection result; in response to the third detection result, it is determined that the center axle shift is successful, control the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

[0115] Optionally, the above-mentioned vehicle drive mode switching control device based on the weight of the entire vehicle also includes: a third maintaining module 606 (not shown in the figure), which is used to control the target vehicle to maintain the initial driving mode in response to satisfying one of the following conditions: determining that the transmission gear is lower than or equal to the second preset gear based on the fifth comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the sixth comparison result; determining that the mid-bridge gear shift has failed based on the third detection result.

[0116] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements any one of the aforementioned vehicle drive mode switching control methods based on vehicle weight.

[0117] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0118] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the aforementioned vehicle drive mode switching control methods based on the weight of the entire vehicle.

[0119] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0120] Step S1, after the target vehicle is powered on and started, obtaining operating data of the target vehicle, wherein the operating data includes at least: vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels;

[0121] Step S2, determining a target driving mode of the target vehicle based at least on the vehicle weight;

[0122] In step S3 , the target vehicle is controlled according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode.

[0123] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0124] According to another aspect of an embodiment of the present invention, a vehicle is also provided, comprising an on-board memory and an on-board processor, wherein a computer program is stored in the on-board memory, and the on-board processor is configured to run the computer program to execute any one of the aforementioned vehicle drive mode switching control methods based on the weight of the entire vehicle.

[0125] Optionally, in this embodiment, the vehicle-mounted processor may be configured to execute the following steps via a computer program:

[0126] Step S1, after the target vehicle is powered on and started, obtaining operating data of the target vehicle, wherein the operating data includes at least: vehicle weight, engine torque, and an initial driving mode, wherein in the initial driving mode, multiple wheels of the target vehicle are all driving wheels;

[0127] Step S2, determining a target driving mode of the target vehicle based at least on the vehicle weight;

[0128] Step S3 : controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode.

[0129] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: comparing the weight of the entire vehicle with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle; and determining the target driving mode at least based on the first comparison result.

[0130] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: the preset weight intervals include: a first interval, a second interval and a third interval, the upper weight limit of the first interval is less than the lower weight limit of the second interval, and the upper weight limit of the second interval is less than the lower weight limit of the third interval: in response to the first comparison result, it is determined that the weight of the entire vehicle belongs to the first interval, the load type is determined to be no-load, and in the target driving mode, some of the wheels of the target vehicle are driving wheels.

[0131] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: comparing the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle shifts successfully to obtain a first detection result; in response to the first detection result, determining that the center axle shifts successfully, controlling the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial drive mode to the target drive mode.

[0132] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial driving mode: determining that the engine torque is greater than or equal to a preset torque threshold based on the second comparison result; determining that the mid-bridge gear shift fails based on the first detection result.

[0133] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: the operating data also includes a transmission gear: in response to the first comparison result, it is determined that the weight of the vehicle belongs to the second interval, and the load type is determined to be half load; in response to the load type being half load, the transmission gear is compared with the first preset gear to obtain a third comparison result; in response to the third comparison result, it is determined that the transmission gear is higher than the first preset gear, and the target driving mode is determined.

[0134] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: comparing the engine torque with a preset torque threshold to obtain a fourth comparison result; in response to the fourth comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle shifts successfully to obtain a second detection result; in response to the second detection result, determining that the center axle shifts successfully, controlling the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial drive mode to the target drive mode.

[0135] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial driving mode: determining that the transmission gear is lower than or equal to the first preset gear based on the third comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the fourth comparison result; determining that the mid-bridge gear shift has failed based on the second detection result.

[0136] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: the operating data also includes a transmission gear: in response to the first comparison result, it is determined that the weight of the vehicle belongs to the third interval, and the load type is determined to be full load; in response to the load type being full load, the transmission gear is compared with the second preset gear to obtain a fifth comparison result, wherein the second preset gear is higher than the first preset gear; in response to the fifth comparison result, it is determined that the transmission gear is higher than the second preset gear, and the target driving mode is determined.

[0137] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: comparing the engine torque with a preset torque threshold to obtain a sixth comparison result; in response to the sixth comparison result, determining that the engine torque is less than the preset torque threshold, controlling the target vehicle's center axle shift actuator to disconnect, and detecting whether the center axle shifts successfully to obtain a third detection result; in response to the third detection result, determining that the center axle shifts successfully, controlling the target vehicle's rear axle shift actuator to disconnect, so as to switch the target vehicle from the initial drive mode to the target drive mode.

[0138] Optionally, in this embodiment, the above-mentioned on-board processor can be configured to perform the following steps through a computer program: in response to satisfying one of the following conditions, controlling the target vehicle to maintain the initial driving mode: determining that the transmission gear is lower than or equal to the second preset gear based on the fifth comparison result; determining that the engine torque is greater than or equal to the preset torque threshold based on the sixth comparison result; determining that the mid-bridge gear shift has failed based on the third detection result.

[0139] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiment and its optional implementation manners, and this embodiment will not be described in detail here.

[0140] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0141] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0142] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, and can be electrical or other forms.

[0143] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0144] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0145] If the integrated unit 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 all or 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 and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program code.

[0146] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A vehicle driving mode switching control method based on vehicle weight, characterized in that: include: After the target vehicle is powered on and started, operating data of the target vehicle is obtained, wherein the operating data includes at least: a transmission gear, a vehicle weight, an engine torque, and an initial driving mode, wherein the plurality of wheels of the target vehicle are all driving wheels; Determining a target driving mode of the target vehicle based at least on the vehicle weight includes: determining that the vehicle weight belongs to a first interval in response to a first comparison result, determining that the load type is unloaded, and in the target driving mode, some wheels of the target vehicle are driving wheels; determining that the vehicle weight belongs to a second interval in response to the first comparison result, determining that the load type is half loaded; in response to the load type being half loaded, comparing the transmission gear with a first preset gear to obtain a third comparison result; determining that the transmission gear is higher than the first preset gear in response to the third comparison result, determining the target driving mode; The first comparison result is obtained by comparing the vehicle weight with a preset weight range, wherein the preset weight ranges include a first range, a second range, and a third range, wherein the upper weight limit of the first range is less than the lower weight limit of the second range, and the upper weight limit of the second range is less than the lower weight limit of the third range; The target vehicle is controlled according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode, including: comparing the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determining that the engine torque is less than the preset torque threshold, controlling the center axle shift actuator of the target vehicle to disconnect, and detecting whether the center axle has shifted successfully to obtain a first detection result; in response to the first detection result, determining that the center axle has shifted successfully, controlling the rear axle shift actuator of the target vehicle to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

2. The vehicle driving mode switching control method based on vehicle weight according to claim 1, characterized in that: Determining the target driving mode of the target vehicle at least based on the vehicle weight includes: Comparing the vehicle weight with a preset weight range to obtain a first comparison result, wherein the first comparison result is used to determine the load type of the target vehicle; The target driving mode is determined based on at least the first comparison result.

3. The vehicle driving mode switching control method based on vehicle weight according to claim 1, characterized in that: The vehicle driving mode switching control method based on the vehicle weight further includes: In response to one of the following conditions being met, controlling the target vehicle to maintain the initial driving mode: determining, based on the second comparison result, that the engine torque is greater than or equal to the preset torque threshold; The mid-bridge gear shift failure is determined based on the first detection result.

4. The vehicle driving mode switching control method based on vehicle weight according to claim 1, characterized in that: Controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes: comparing the engine torque with a preset torque threshold to obtain a fourth comparison result; In response to determining that the engine torque is less than the preset torque threshold value according to the fourth comparison result, controlling the mid-axle shift actuator of the target vehicle to be disconnected, and detecting whether the mid-axle shift is successful to obtain a second detection result; In response to determining that the mid-axle shift is successful based on the second detection result, the rear axle shift actuator of the target vehicle is controlled to be disconnected to switch the target vehicle from the initial driving mode to the target driving mode.

5. The vehicle driving mode switching control method based on vehicle weight according to claim 4, characterized in that: The vehicle driving mode switching control method based on the vehicle weight further includes: In response to one of the following conditions being met, controlling the target vehicle to maintain the initial driving mode: determining, based on the third comparison result, that the transmission gear is lower than or equal to the first preset gear; determining, based on the fourth comparison result, that the engine torque is greater than or equal to the preset torque threshold; The mid-bridge gear shift failure is determined based on the second detection result.

6. The vehicle driving mode switching control method based on vehicle weight according to claim 1, characterized in that: The operating data further includes a transmission gear, and determining the target driving mode based at least on the first comparison result includes: In response to the first comparison result, determining that the vehicle weight belongs to the third interval, determining the load type is fully loaded; In response to the load type being full load, comparing the transmission gear with a second preset gear to obtain a fifth comparison result, wherein the second preset gear is higher than the first preset gear; In response to the fifth comparison result determining that the transmission gear is higher than the second preset gear, the target driving mode is determined.

7. The vehicle driving mode switching control method based on vehicle weight according to claim 6, characterized in that: Controlling the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode includes: comparing the engine torque with a preset torque threshold to obtain a sixth comparison result; In response to the sixth comparison result determining that the engine torque is less than the preset torque threshold, controlling the mid-axle shift actuator of the target vehicle to be disconnected, and detecting whether the mid-axle shift is successful, to obtain a third detection result; In response to determining that the mid-axle shift is successful according to the third detection result, the rear axle shift actuator of the target vehicle is controlled to be disconnected to switch the target vehicle from the initial driving mode to the target driving mode.

8. The vehicle driving mode switching control method based on vehicle weight according to claim 7, characterized in that: The vehicle driving mode switching control method based on the vehicle weight further includes: In response to one of the following conditions being met, controlling the target vehicle to maintain the initial driving mode: determining, based on the fifth comparison result, that the transmission gear is lower than or equal to the second preset gear; determining, based on the sixth comparison result, that the engine torque is greater than or equal to the preset torque threshold; The mid-bridge shift failure is determined based on the third detection result.

9. A vehicle driving mode switching control device based on vehicle weight, characterized in that: include: an acquisition module, configured to acquire operating data of the target vehicle after the target vehicle is powered on and started, wherein the operating data includes at least: a transmission gear position, a vehicle weight, an engine torque, and an initial driving mode, wherein in the initial driving mode, the plurality of wheels of the target vehicle are all driving wheels; a determination module, configured to determine a target driving mode of the target vehicle based at least on the vehicle weight, comprising: determining, in response to a first comparison result, that the vehicle weight belongs to a first interval, determining that the load type is unloaded, and in the target driving mode, some wheels of the target vehicle are driving wheels; determining, in response to the first comparison result, that the vehicle weight belongs to a second interval, determining that the load type is half-loaded; in response to the load type being half-loaded, comparing the transmission gear with a first preset gear to obtain a third comparison result; and determining, in response to the third comparison result, that the transmission gear is higher than the first preset gear, determining the target driving mode; The first comparison result is obtained by comparing the vehicle weight with a preset weight range, wherein the preset weight ranges include a first range, a second range, and a third range, wherein the upper weight limit of the first range is less than the lower weight limit of the second range, and the upper weight limit of the second range is less than the lower weight limit of the third range; A control module is used to control the target vehicle according to the engine torque to switch the target vehicle from the initial driving mode to the target driving mode, including: comparing the engine torque with a preset torque threshold to obtain a second comparison result; in response to the second comparison result, determining that the engine torque is less than the preset torque threshold, controlling the mid-axle shift actuator of the target vehicle to disconnect, and detecting whether the mid-axle shift is successful to obtain a first detection result; in response to the first detection result, determining that the mid-axle shift is successful, controlling the rear-axle shift actuator of the target vehicle to disconnect, so as to switch the target vehicle from the initial driving mode to the target driving mode.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the vehicle driving mode switching control method based on the vehicle weight of any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the vehicle driving mode switching control method based on the vehicle weight as described in any one of claims 1 to 8.

12. A vehicle, characterized in that: It includes an on-board memory and an on-board processor, wherein the on-board memory stores a computer program, and the on-board processor is configured to run the computer program to execute the vehicle driving mode switching control method based on the vehicle weight according to any one of claims 1 to 8.

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