Method and apparatus for switching drive mode of vehicle, and vehicle and storage medium

Abstract

A method for switching the drive mode of a vehicle. The method comprises: when the drive mode of a target vehicle is a two-wheel drive mode, acquiring the current information for determination, which information comprises the current scenario information, the current driver dimension information, the current vehicle dimension information and the current road surface dimension information, wherein the current scenario information comprises the current parameter value of a parameter related to the current weather, the current driver dimension information comprises the current parameter value of a parameter of a driver of the target vehicle, the current vehicle dimension information comprises the current parameter value of a parameter related to an environment and the current parameter value of a parameter for a travel safety prompt, and the current road surface dimension information comprises the current parameter value of an acceleration parameter of the target vehicle; on the basis of the current information for determination, each piece of information in the current information for determination, and a threshold value corresponding to each piece of information, determining whether to switch the drive mode; and if the drive mode is to be switched, switching the drive mode of the target vehicle from the two-wheel drive mode to a four-wheel drive mode. Thus, it is not necessary for a driver to manually switch to a four-wheel drive mode, thereby simplifying operations of the driver. In addition, the present application further relates to an apparatus for switching the drive mode of a vehicle, and a vehicle and a computer-readable storage medium.

Description

Method, device, vehicle and storage medium for switching driving mode of vehicle Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a method, device, vehicle, and computer-readable storage medium for switching a driving mode of a vehicle. Background Art

[0002] In four-wheel drive mode, the load is evenly distributed across all four wheels, making the vehicle more stable and safer than in two-wheel drive mode. Currently, four-wheel drive is manually engaged by the driver. Simplifying driver operation is a challenge that needs to be addressed.

[0003] Summary of the Invention

[0004] In view of this, embodiments of the present application provide a method, apparatus, vehicle, and computer-readable storage medium for switching a vehicle's driving mode to solve the problem of how to simplify the driver's operation.

[0005] In a first aspect, the present application provides a method for switching a driving mode of a vehicle, the method comprising:

[0006] When the driving mode of the target vehicle is a two-wheel drive mode, obtaining information currently used for judgment, the current information currently used for judgment including: current scene information, current driver dimension information, current vehicle dimension information, and current road surface dimension information, wherein the current scene information includes current parameter values ​​of parameters related to current weather, the current driver dimension information includes current parameter values ​​of parameters of the driver of the target vehicle, the current vehicle dimension information includes: current parameter values ​​of parameters related to the environment and current parameter values ​​of parameters used for driving safety reminders, and the current road surface dimension information includes current parameter values ​​of acceleration parameters of the target vehicle;

[0007] determining whether to switch the driving mode according to the information currently used for judgment, each piece of information in the information currently used for judgment, and a threshold value corresponding to each piece of information;

[0008] If so, the driving mode of the target vehicle is switched from the two-wheel drive mode to the four-wheel drive mode.

[0009] In one possible implementation, determining whether to switch the driving mode according to the information currently used for judgment, each piece of information in the information currently used for judgment, and a threshold corresponding to each piece of information includes:

[0010] For each piece of information currently used for judgment, obtaining a judgment result of the information according to the information and a threshold value corresponding to the information;

[0011] Obtaining a current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information, and the judgment result of the current road dimension information;

[0012] Whether to switch the driving mode is determined according to the judgment result of the current scene information and the current comprehensive judgment result.

[0013] In one possible implementation, the current comprehensive judgment result obtained based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information, and the judgment result of the current road dimension information includes:

[0014] When at least one of the judgment results of the current driver dimension information, the current vehicle dimension information, and the current road dimension information indicates that a drive mode switch is required, a comprehensive judgment result indicating that a drive mode switch is required is obtained;

[0015] When there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, a comprehensive judgment result indicating that the driving mode does not need to be switched is obtained.

[0016] In one possible implementation, determining whether to switch the driving mode according to the judgment result of the current scene information and the current comprehensive judgment result includes:

[0017] When the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched, determining to switch the driving mode;

[0018] When the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, it is determined not to switch the driving mode.

[0019] In one possible implementation, the current road surface dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information include: a longitudinal acceleration threshold, a lateral acceleration threshold, and a lateral acceleration threshold; and

[0020] The determination result of the current road surface dimension information obtained based on the current road surface dimension information and the threshold value corresponding to the current road surface dimension information includes:

[0021] When at least one item of the current road surface dimension information is greater than a corresponding threshold, a determination result of the current road surface dimension information that a driving mode switch is required is obtained;

[0022] When each item in the current road surface dimension information is less than or equal to the corresponding threshold value, a judgment result of the current road surface dimension information is obtained, indicating that there is no need to switch the driving mode.

[0023] In one possible implementation, the current scene information includes current rainfall and current speed of the target vehicle, and the thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; and

[0024] Obtaining a determination result of the current scene information according to the current scene information and a threshold value corresponding to the current scene information includes:

[0025] When the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold, obtaining a judgment result of the current scene information indicating that a driving mode switch is required;

[0026] When the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, a judgment result of the current scene information is obtained, indicating that there is no need to switch the driving mode.

[0027] In a possible implementation, obtaining a determination result of the current driver dimension information according to the current driver dimension information and a threshold value corresponding to the current driver dimension information includes:

[0028] Calculating a score of the current driver dimensional information according to a current parameter value of each parameter in the current driver dimensional information, and obtaining a judgment result of the current driver dimensional information according to the score of the current driver dimensional information and a threshold value corresponding to the current driver dimensional information; and

[0029] Obtaining a judgment result of the current vehicle dimension information according to the current vehicle dimension information and a threshold value corresponding to the current vehicle dimension information includes:

[0030] According to the current parameter value of each parameter in the current vehicle dimensional information, the score of the current vehicle dimensional information is calculated, and according to the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information, the judgment result of the current vehicle dimensional information is obtained.

[0031] In a second aspect, an embodiment of the present application provides a device for switching a driving mode of a vehicle, the device comprising:

[0032] an acquisition module, configured to acquire information currently used for determination when the drive mode of the target vehicle is a two-wheel drive mode, the information currently used for determination including: current scene information, current driver dimension information, current vehicle dimension information, and current road surface dimension information, wherein the current scene information includes current parameter values ​​of parameters related to current weather, the current driver dimension information includes current parameter values ​​of parameters of the driver of the target vehicle, the current vehicle dimension information includes current parameter values ​​of parameters related to the environment and current parameter values ​​of parameters used for driving safety reminders, and the current road surface dimension information includes current parameter values ​​of acceleration parameters of the target vehicle;

[0033] a determination module, configured to determine whether to switch the driving mode based on the information currently used for determination, each piece of information in the information currently used for determination, and a threshold value corresponding to each piece of information;

[0034] The switching module is configured to switch the driving mode of the target vehicle from the two-wheel drive mode to the four-wheel drive mode when it is determined that the driving mode is to be switched.

[0035] In one possible embodiment, the determination module is further used to obtain a judgment result of each piece of information currently used for judgment based on the information and the threshold value corresponding to the information; obtain a current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information and the judgment result of the current road surface dimension information; and determine whether to switch the driving mode based on the judgment result of the current scene information and the current comprehensive judgment result.

[0036] In one possible embodiment, the determination module is further used to obtain a comprehensive judgment result indicating that the driving mode needs to be switched when there is at least one judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information, and the judgment results of the current road surface dimension information; and to obtain a comprehensive judgment result indicating that the driving mode does not need to be switched when there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information, and the judgment results of the current road surface dimension information.

[0037] In one possible embodiment, the determination module is further used to determine whether to switch the driving mode when the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched; when the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, determine not to switch the driving mode.

[0038] In one possible embodiment, the current road surface dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information include: longitudinal acceleration threshold, lateral acceleration threshold, and lateral acceleration threshold; the determination module is further used to obtain a judgment result of the current road surface dimension information that the driving mode needs to be switched when at least one item in the current road surface dimension information is greater than the corresponding threshold; when each item in the current road surface dimension information is less than or equal to the corresponding threshold, obtain a judgment result of the current road surface dimension information that the driving mode does not need to be switched.

[0039] In one possible embodiment, the current scene information includes the current rainfall and the current speed of the target vehicle, and the thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; the determination module is further used to obtain a judgment result of the current scene information indicating that the driving mode needs to be switched when the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold; when the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, obtain a judgment result of the current scene information indicating that the driving mode does not need to be switched.

[0040] In one possible embodiment, the determination module is further used to calculate the score of the current driver dimensional information based on the current parameter value of each parameter in the current driver dimensional information, and obtain the judgment result of the current driver dimensional information based on the score of the current driver dimensional information and the threshold value corresponding to the current driver dimensional information; calculate the score of the current vehicle dimensional information based on the current parameter value of each parameter in the current vehicle dimensional information, and obtain the judgment result of the current vehicle dimensional information based on the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information.

[0041] In a third aspect, an embodiment of the present application provides a vehicle comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, computer instructions being stored in the memory, and the processor executing the method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0042] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the method of the above-mentioned first aspect or any corresponding embodiment thereof.

[0043] Beneficial effects of this application:

[0044] The technical solution provided by this application can automatically determine whether to switch drive modes, automatically switching drive modes to improve vehicle driving safety, eliminating the need for the driver to manually switch drive modes and simplifying driver operations. When determining whether to switch drive modes, information related to the current weather, namely current scene information, is considered. Information from multiple dimensions, such as current driver dimension information, current vehicle dimension information, and current road dimension information, is also utilized. Thus, comprehensive consideration of factors related to drive mode switching allows for a relatively accurate determination of whether to switch drive modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a schematic flow chart of a method for switching a driving mode of a vehicle according to an embodiment of the present application;

[0046] FIG2 is a flow chart of another method for switching a driving mode of a vehicle according to an embodiment of the present application;

[0047] FIG3 is a flow chart showing an example of switching from a two-wheel drive mode to a four-wheel drive mode;

[0048] FIG4 is a structural block diagram of an apparatus for switching a driving mode of a vehicle according to an embodiment of the present application;

[0049] FIG5 is a schematic diagram of the hardware structure of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will describe the embodiments of the present application with reference to the accompanying drawings and optional embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the optional embodiments are only for the purpose of illustrating the present application and are not intended to limit the scope of protection of the present application.

[0051] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Therefore, the illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0052] 1 , which shows a flow chart of a method for switching a driving mode of a vehicle according to an embodiment of the present application.

[0053] During the period when the driving mode of the target vehicle is the two-wheel drive mode, it may be periodically determined whether to switch the driving mode, and steps S101 - S102 may be periodically executed.

[0054] In step S101 , when the driving mode of the target vehicle is the two-wheel drive mode, information currently used for judgment is obtained.

[0055] The target vehicle may be any vehicle to which the method for switching the driving mode of a vehicle provided in the embodiments of the present application is applied.

[0056] The information currently used for judgment includes: current scene information, current driver dimension information, current vehicle dimension information, and current road surface dimension information. Among them, the current scene information can be related to the scene where the target vehicle is currently located. The scene is predefined at least according to the type of weather. In addition, the weather type can be combined with other factors such as daytime and nighttime to predefine the scene. The current driver dimension information can be related to the driver of the target vehicle. The current vehicle dimension information can be related to the environment and driving safety reminders. The current road surface dimension information can be related to the condition of the road surface where the target vehicle is currently located. The condition of the road surface where the target vehicle is currently located can be reflected by the current parameter value of the acceleration parameter in the current road surface dimension information.

[0057] In an embodiment of the present application, each parameter in the information currently used for judgment is a parameter related to the driving safety of the target vehicle. The current parameter values ​​of at least some of the parameters in the information currently used for judgment are determined based on events or information detected by sensors of the target vehicle. As an example, the target vehicle has a speed sensor, a rain sensor, an electronic stability control system (ESP) sensor, a brake sensor, a steering sensor, a 360-degree vehicle camera, a vehicle lateral acceleration sensor, a vehicle longitudinal acceleration sensor, a vehicle lateral acceleration sensor, etc.

[0058] The current scene information includes the current parameter values ​​of parameters related to the current weather, the current driver dimension information includes the current parameter values ​​of the parameters of the driver of the target vehicle, the current vehicle dimension information includes: the current parameter values ​​of parameters related to the environment and the current parameter values ​​of parameters used for driving safety reminders, and the current road surface dimension information includes the current parameter values ​​of the acceleration parameters of the target vehicle.

[0059] As an example, if the current weather is rainy, the current scene information includes the current parameter value of the rainfall parameter, i.e., the current rainfall. As another example, if the current weather is foggy, the current scene information includes the current parameter value of the fog parameter, i.e., the current fog concentration.

[0060] As an example, the current driver dimension information includes: the current parameter value of the driving time parameter, the current parameter value of the fatigue parameter, the current parameter value of the inattention parameter, the current parameter value of the sudden steering parameter, the current parameter value of the accelerator pedal parameter, and the current parameter value of the emergency braking parameter.

[0061] As an example, the current vehicle dimension information includes: the current parameter value of the low temperature parameter, the current parameter value of the high temperature parameter, the current parameter value of the plateau parameter, the current parameter value of the brake assist reminder parameter, the current parameter value of the following distance reminder parameter, the current parameter value of the line crossing reminder parameter, and the current parameter value of the lane change reminder parameter.

[0062] As an example, the current road dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle.

[0063] In the embodiment of the present application, the current parameter value of the parameter in the current scene information is collected by a sensor of the target vehicle that collects the parameter value of the parameter. In one possible implementation, for each parameter in the current scene information, before step S101 is performed for the first time, the parameter value of the parameter is 0.

[0064] In the embodiment of the present application, the formation method of the current parameter value of the parameter in the current driver dimension information is preset.

[0065] In a possible implementation, for each parameter in the current driver dimension information, before step S101 is performed for the first time, the parameter value of the parameter is 0.

[0066] For a current parameter value of a parameter in the current driver dimension information, the current parameter value of the parameter may be increased by a preset value at intervals of a preset duration starting from the time step S101 is first executed. The preset value is a positive number. As an example, the parameter is a driving duration parameter, and the parameter value of the driving duration parameter is increased by a preset value at intervals of a preset duration starting from the time step S101 is first executed.

[0067] The current parameter value of a parameter in the current driver dimension information may be related to the number of occurrences of the event represented by the parameter within a time period used for determination. As an example, the time period used for determination may be a time period of a preset duration ending at the current time. A determination may be made as to whether signals representing an event represented by the parameter exceeding a preset number have been received within the time period used for determination. If so, the current parameter value of the parameter is the corresponding preset parameter value; otherwise, the current parameter value of the parameter is 0. The corresponding preset parameter value of the parameter is greater than 0. As an example, the corresponding preset parameter value is a number greater than 0 and less than 1. As an example, the parameter is a fatigue parameter, the event represented by the fatigue parameter is a fatigue event of the target vehicle driver, and the signal representing the event is a fatigue signal. A determination may be made as to whether the number of fatigue signals received within the time period used for determination is greater than a preset number. The fatigue signal is received from a sensor used to detect whether the target vehicle driver is fatigued. If so, the current parameter value of the fatigue parameter is the corresponding preset parameter value; otherwise, the current parameter value of the fatigue parameter is 0. The preset parameter value corresponding to the fatigue parameter is greater than 0. As an example, the preset parameter value corresponding to the fatigue parameter is a number greater than 0 and less than 1.

[0068] The current parameter value of a parameter in the current vehicle dimension information may be related to whether the target vehicle is currently in the environment represented by the parameter. It can be determined whether the target vehicle is currently in the environment represented by the parameter. If so, the current parameter value of the parameter is the preset parameter value corresponding to the parameter; otherwise, the current parameter value of the parameter is 0. As an example, the preset parameter value corresponding to the parameter is a number greater than 0 and less than 1. As an example, if the environment represented by the low temperature parameter is a low temperature environment, if the target vehicle is currently in a low temperature environment, the current parameter value of the low temperature parameter is the preset parameter value corresponding to the low temperature parameter; if the target vehicle is not currently in a low temperature environment, the current parameter value of the low temperature parameter is 0. The preset parameter value corresponding to the low temperature parameter is greater than 0. As an example, the preset parameter value corresponding to the low temperature parameter is greater than 0. As another example, if the environment represented by the high temperature parameter is a high temperature environment, if the target vehicle is currently in a high temperature environment, the current parameter value of the high temperature parameter is the preset parameter value corresponding to the high temperature parameter; if the target vehicle is not currently in a high temperature environment, the current parameter value of the high temperature parameter is 0. The preset parameter value corresponding to the high temperature parameter is greater than 0. As an example, the preset parameter value corresponding to the high temperature parameter is greater than 0. As another example, the environment represented by the plateau parameter is a plateau. If the target vehicle is currently located in the plateau, the current parameter value of the plateau parameter is a preset parameter value corresponding to the plateau parameter. If the target vehicle is not currently located in the plateau, the current parameter value of the plateau parameter is 0. The preset parameter value corresponding to the plateau parameter is greater than 0. As an example, the preset parameter value corresponding to the plateau parameter is a number greater than 0 and less than 1.

[0069] For the current parameter value of a parameter in the current vehicle dimension information, the current parameter value of the parameter may be related to whether the event represented by the parameter is occurring on the target vehicle at the current time. It can be determined whether the event represented by the parameter is occurring on the target vehicle at the current time. If so, the current parameter value of the parameter is the preset parameter value corresponding to the parameter. If not, the current parameter value of the parameter is 0. The preset parameter value corresponding to the parameter is greater than 0. As an example, the preset parameter value corresponding to the parameter is a number greater than 0 and less than 1. As an example, the event represented by the brake assist reminder parameter is a brake assist reminder event. If the brake assist reminder event is occurring on the target vehicle at the current time, the current parameter value of the parameter is the preset parameter value corresponding to the parameter. If not, the current parameter value of the parameter is 0. The preset parameter value corresponding to the brake assist reminder parameter is greater than 0. As an example, the preset parameter value corresponding to the brake assist reminder parameter is a number greater than 0 and less than 1.

[0070] Step S102 : determining whether to switch the driving mode based on the information currently used for judgment, each piece of information in the information currently used for judgment, and a threshold value corresponding to each piece of information.

[0071] In step S102, in order to determine whether to switch the driving mode, the judgment result of the current scene information can be obtained based on the current scene information and the threshold value corresponding to the current scene information. The judgment result of the current scene information can indicate whether the driving mode needs to be switched. The judgment result of the current driver dimensional information can be obtained based on the current driver dimensional information and the threshold value corresponding to the current driver dimensional information. The judgment result of the current driver dimensional information can indicate whether the driving mode needs to be switched. The judgment result of the current vehicle dimensional information can be obtained based on the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information. The judgment result of the current vehicle dimensional information can indicate whether the driving mode needs to be switched. The judgment result of the current road surface dimensional information can be obtained based on the current road surface dimensional information and the threshold value corresponding to the current road surface dimensional information. The judgment result of the current road surface dimensional information can indicate whether the driving mode needs to be switched.

[0072] As an example, the threshold value corresponding to the current scene information includes the threshold value corresponding to each item in the current scene information. In order to obtain the judgment result of the current scene information based on the current scene information and the threshold value corresponding to the current scene information, the item in the current scene information can be compared with the corresponding threshold value to obtain the judgment result of the current scene information. As an example, the current weather is rainy, and the current scene information includes the current parameter value of the rainfall parameter, i.e., the current rainfall, and the current speed of the target vehicle. When the current rainfall is greater than the rainfall threshold value and the current vehicle speed is greater than the vehicle speed threshold value, a judgment result of the current scene information is obtained, indicating that the driving mode needs to be switched. When the current rainfall is not greater than the rainfall threshold value and / or the current vehicle speed is not greater than the vehicle speed threshold value, a judgment result of the current scene information is obtained, indicating that the driving mode does not need to be switched.

[0073] As an example, in order to obtain a judgment result of the current driver dimensional information based on the current driver dimensional information and the threshold value corresponding to the current driver dimensional information, a score of the current driver dimensional information is calculated based on the current parameter value of each parameter in the current driver dimensional information. As an example, the current parameter value of each parameter in the current driver dimensional information can be added to obtain the score of the current driver dimensional information. As another example, the current parameter value of each parameter can be normalized to obtain the normalized value of each parameter, and the normalized values ​​of each parameter can be added to obtain the score of the current driver dimensional information. The threshold value corresponding to the current driver dimensional information is a preset score. When the score of the current driver dimensional information is greater than the threshold value corresponding to the current driver dimensional information, a judgment result of the current driver dimensional information is obtained, indicating that a drive mode switch is required. When the score of the current driver dimensional information is less than or equal to the threshold value corresponding to the current driver dimensional information, a judgment result of the current driver dimensional information is obtained, indicating that a drive mode switch is not required.

[0074] As an example, in order to obtain a judgment result of the current vehicle dimensional information based on the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information, the score of the current vehicle dimensional information is calculated based on the current parameter value of each parameter in the current vehicle dimensional information. As an example, the current parameter value of each parameter in the current vehicle dimensional information can be added to obtain the score of the current vehicle dimensional information. As another example, the current parameter value of each parameter can be normalized to obtain the normalized value of each parameter, and the normalized values ​​of each parameter can be added to obtain the score of the current vehicle dimensional information. The threshold value corresponding to the current vehicle dimensional information is a preset score. When the score of the current vehicle dimensional information is greater than the threshold value corresponding to the current vehicle dimensional information, a judgment result of the current vehicle dimensional information is obtained, indicating that a drive mode switch is required. When the score of the current vehicle dimensional information is less than or equal to the threshold value corresponding to the current vehicle dimensional information, a judgment result of the current vehicle dimensional information is obtained, indicating that a drive mode switch is not required.

[0075] As an example, the threshold corresponding to the current road surface dimension information includes a threshold corresponding to each item in the current road surface dimension information. To determine the current road surface dimension information based on the current road surface dimension information and the threshold corresponding to the current road surface dimension information, each item in the current road surface dimension information can be compared with the corresponding threshold to determine the current road surface dimension information. As an example, the current road surface dimension information includes: the target vehicle's current longitudinal acceleration, the target vehicle's current lateral acceleration, and the target vehicle's current lateral acceleration. The thresholds corresponding to the current road surface dimension information include: a longitudinal acceleration threshold, a lateral acceleration threshold, and a lateral acceleration threshold. The target vehicle's current longitudinal acceleration is compared with the longitudinal acceleration threshold, the target vehicle's current lateral acceleration is compared with the lateral acceleration threshold, and the target vehicle's current lateral acceleration is compared with the lateral acceleration threshold. As an example, the following conditions can be determined: the target vehicle's current longitudinal acceleration is greater than the longitudinal acceleration threshold, the target vehicle's current lateral acceleration is greater than the lateral acceleration threshold, and the target vehicle's current lateral acceleration is greater than the lateral acceleration threshold. If the conditions are met, a determination result is obtained based on the current road surface dimension information indicating that a drive mode switch is required. If the condition is not satisfied, a judgment result of the current road surface dimension information is obtained, indicating that the driving mode does not need to be switched.

[0076] As another example, it can be determined whether the following conditions are met: at least two of the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle are greater than the corresponding threshold values. If the conditions are met, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched. If the conditions are not met, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode does not need to be switched. For example, when the current longitudinal acceleration of the target vehicle is greater than the longitudinal acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched. For example, when the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched.

[0077] In step S102, after obtaining the judgment results of the current scene information, the current driver dimension information, the current vehicle dimension information, and the current road surface dimension information, determine whether to switch the driving mode based on the judgment results of the current scene information, the current driver dimension information, the current vehicle dimension information, and the current road surface dimension information.

[0078] As an example, the following conditions can be determined: when the judgment results of the current scene information, the current driver-related information, the current vehicle-related information, and the current road surface-related information all indicate that a drive mode switch is required, the drive mode switch is performed. If not, the drive mode switch is not performed.

[0079] As another example, the following conditions can be determined: when the current scene information indicates a need to switch driving modes, and at least one of the current driver-related information, the current vehicle-related information, and the current road surface-related information indicates a need to switch driving modes. If so, the drive mode switch is performed. If not, the drive mode switch is not performed.

[0080] Step S103 : When it is determined to switch the driving mode, the driving mode of the target vehicle is switched from the two-wheel drive mode to the four-wheel drive mode.

[0081] As an example, after the target vehicle's driving mode is switched from a two-wheel drive mode to a four-wheel drive mode, the front wheel end torque and the rear wheel end torque of the target vehicle may be distributed in a 5:5 ratio. As an example, when the target vehicle is in the four-wheel drive mode, the target vehicle may be switched from the four-wheel drive mode to the two-wheel drive mode in response to an instruction from the driver of the target vehicle to switch to the two-wheel drive mode.

[0082] 2 , which shows a flow chart of another method for switching a driving mode of a vehicle according to an embodiment of the present application.

[0083] Step S201: When the driving mode of the target vehicle is the two-wheel drive mode, obtain the current information used for judgment.

[0084] The process of step S201 participates in the process of step S101.

[0085] Step S202: for each piece of information currently used for judgment, obtain the judgment result of the information based on the information and the threshold value corresponding to the information; obtain the current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information and the judgment result of the current road dimension information; determine whether to switch the driving mode based on the judgment result of the current scene information and the current comprehensive judgment result.

[0086] For each piece of information currently used for judgment, the judgment result of the information is obtained according to the information and the threshold value corresponding to the information, including: step S2021, obtaining the judgment result of the current scene information according to the current scene information and the threshold value corresponding to the current scene information, and the judgment result of the current scene information can indicate whether the driving mode needs to be switched; step S2022, obtaining the judgment result of the current driver dimension information according to the current driver dimension information and the threshold value corresponding to the current driver dimension information, and the judgment result of the current driver dimension information can indicate whether the driving mode needs to be switched; step S2023, obtaining the judgment result of the current vehicle dimension information according to the current vehicle dimension information and the threshold value corresponding to the current vehicle dimension information, and the judgment result of the current vehicle dimension information can indicate whether the driving mode needs to be switched; step S2024, obtaining the judgment result of the current road surface dimension information according to the current road surface dimension information and the threshold value corresponding to the current road surface dimension information, and the judgment result of the current road surface dimension information can indicate whether the driving mode needs to be switched.

[0087] In one possible embodiment, the current scene information may include the current rainfall and the current speed of the target vehicle, and the thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; step S2021 may include: when the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold, obtaining a judgment result of the current scene information indicating that the driving mode needs to be switched; when the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, obtaining a judgment result of the current scene information indicating that the driving mode does not need to be switched.

[0088] The current speed of the target vehicle is not greater than the speed threshold value, which means that the current speed of the target vehicle is less than or equal to the speed threshold value.

[0089] In one possible implementation, in step S2022, obtaining a judgment result of the current driver dimensional information based on the current driver dimensional information and the threshold corresponding to the current driver dimensional information includes: calculating the score of the current driver dimensional information based on the current parameter value of each parameter in the current driver dimensional information, and obtaining a judgment result of the current driver dimensional information based on the score of the current driver dimensional information and the threshold corresponding to the current driver dimensional information.

[0090] In one possible implementation, based on the score of the current driver dimensional information and the threshold corresponding to the current driver dimensional information, a judgment result of the current driver dimensional information is obtained, including: when the score of the current driver dimensional information is greater than the threshold corresponding to the current driver dimensional information, a judgment result of the current driver dimensional information is obtained that the driving mode needs to be switched; when the score of the current driver dimensional information is less than or equal to the threshold corresponding to the current driver dimensional information, a judgment result of the current driver dimensional information is obtained that the driving mode does not need to be switched.

[0091] In one possible implementation, in step S2023, based on the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information, obtaining the judgment result of the current vehicle dimensional information includes: calculating the score of the current vehicle dimensional information based on the current parameter value of each parameter in the current vehicle dimensional information, and obtaining the judgment result of the current vehicle dimensional information based on the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information.

[0092] In one possible implementation, based on the score of the current vehicle dimensional information and the threshold corresponding to the current vehicle dimensional information, a judgment result of the current vehicle dimensional information is obtained, including: when the score of the current vehicle dimensional information is greater than the threshold corresponding to the current vehicle dimensional information, a judgment result of the current vehicle dimensional information is obtained, indicating that the driving mode needs to be switched; when the score of the current vehicle dimensional information is less than or equal to the threshold corresponding to the current vehicle dimensional information, a judgment result of the current vehicle dimensional information is obtained, indicating that the driving mode does not need to be switched.

[0093] In one possible embodiment, the current road surface dimension information may include: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information include: longitudinal acceleration threshold, lateral acceleration threshold, and lateral acceleration threshold; step S2024 may include: when at least one item in the current road surface dimension information is greater than the corresponding threshold, a judgment result of the current road surface dimension information is obtained, indicating that the driving mode needs to be switched; when each item in the current road surface dimension information is less than or equal to the corresponding threshold, a judgment result of the current road surface dimension information is obtained, indicating that the driving mode does not need to be switched.

[0094] As an example, when the current longitudinal acceleration of the target vehicle is greater than the longitudinal acceleration threshold and the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold and the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched. As another example, when the current longitudinal acceleration of the target vehicle is not greater than the longitudinal acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold and the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched. As another example, when the current longitudinal acceleration of the target vehicle is not greater than the longitudinal acceleration threshold and the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold, a judgment result of the current road surface dimension information is obtained, indicating that the drive mode needs to be switched. As another example, when the current longitudinal acceleration of the target vehicle is not greater than the longitudinal acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold and the current lateral acceleration of the target vehicle is greater than the lateral acceleration threshold, a judgment result is obtained based on the current road surface dimension information that the driving mode needs to be switched.

[0095] When the current longitudinal acceleration of the target vehicle is not greater than the longitudinal acceleration threshold, the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold, and the current lateral acceleration of the target vehicle is not greater than the lateral acceleration threshold, a judgment result is obtained based on the current road surface dimension information and no driving mode switching is required.

[0096] In step S202, based on the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, the current comprehensive judgment result is obtained, including: when there is at least one judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, a comprehensive judgment result indicating that the driving mode needs to be switched is obtained; when there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, a comprehensive judgment result indicating that the driving mode does not need to be switched is obtained.

[0097] In step S202, determining whether to switch the driving mode based on the judgment result of the current scene information and the current comprehensive judgment result includes: when the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched, determining to switch the driving mode; when the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, determining not to switch the driving mode.

[0098] Step S203 : When it is determined to switch the driving mode, the driving mode of the target vehicle is switched from the two-wheel drive mode to the four-wheel drive mode.

[0099] 3 , there is shown an example process of switching from the two-wheel drive mode to the four-wheel drive mode.

[0100] In this example, the information currently used for judgment is obtained. The information currently used for judgment includes: current rainfall and current vehicle speed, current driver dimension information, current vehicle dimension information, and current road surface dimension information. The current rainfall is compared with the rainfall threshold, and the current vehicle speed is compared with the vehicle speed threshold. In this example, the score of the current driver dimension information is compared with the threshold corresponding to the current driver dimension information to obtain the judgment result of the current driver dimension information. In this example, the score of the current vehicle dimension information is compared with the threshold corresponding to the current vehicle dimension information to obtain the judgment result of the current vehicle dimension information. In this example, the acceleration of the target vehicle is compared with the acceleration threshold to obtain the judgment result corresponding to the current road surface dimension information. The current road surface dimension information may include: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information may include: the longitudinal acceleration threshold, the lateral acceleration threshold, and the lateral acceleration threshold. The current longitudinal acceleration of the target vehicle can be compared with a longitudinal acceleration threshold, the current lateral acceleration of the target vehicle can be compared with a lateral acceleration threshold, and the current lateral acceleration of the target vehicle can be compared with a lateral acceleration threshold to obtain a judgment result corresponding to the current road surface dimension information. In this example, a switch from two-wheel drive mode to four-wheel drive mode is performed when one of the following conditions is met: the current rainfall is greater than the rainfall threshold, the current speed of the target vehicle is greater than the speed threshold, and at least one of the current driver dimension information judgment result, the current vehicle dimension information judgment result, and the current road surface dimension information judgment result indicates that a drive mode switch is required.

[0101] The present application also provides an apparatus for switching the drive mode of a vehicle, which is used to implement the above-mentioned method embodiments and optional implementation methods. Details that have already been described will not be repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0102] Referring to FIG4 , which shows a structural block diagram of a device for switching a vehicle's driving mode according to an embodiment of the present application, the device for switching a vehicle's driving mode according to an embodiment of the present application comprises:

[0103] An acquisition module 401 is configured to acquire information currently used for determination when the target vehicle's driving mode is a two-wheel drive mode. The information currently used for determination includes: current scene information, current driver dimension information, current vehicle dimension information, and current road dimension information. The current scene information includes current parameter values ​​of parameters related to the current weather. The current driver dimension information includes current parameter values ​​of parameters of the driver of the target vehicle. The current vehicle dimension information includes current parameter values ​​of parameters related to the environment and current parameter values ​​of parameters used for driving safety reminders. The current road dimension information includes current parameter values ​​of acceleration parameters of the target vehicle.

[0104] a determination module 402 for determining whether to switch the driving mode based on the information currently used for determination, each piece of information in the information currently used for determination, and a threshold value corresponding to each piece of information;

[0105] The switching module 403 is configured to switch the driving mode of the target vehicle from the two-wheel drive mode to the four-wheel drive mode when it is determined that the driving mode needs to be switched.

[0106] In one possible embodiment, the determination module 402 is further used to obtain a judgment result of each piece of information currently used for judgment based on the information and the threshold value corresponding to the information; obtain a current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information and the judgment result of the current road surface dimension information; and determine whether to switch the driving mode based on the judgment result of the current scene information and the current comprehensive judgment result.

[0107] In one possible embodiment, the determination module 402 is further used to obtain a comprehensive judgment result indicating that the driving mode needs to be switched when there is at least one judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information, and the judgment results of the current road surface dimension information; and to obtain a comprehensive judgment result indicating that the driving mode does not need to be switched when there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information, and the judgment results of the current road surface dimension information.

[0108] In one possible embodiment, the determination module 402 is further used to determine whether to switch the driving mode when the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched; when the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, determine not to switch the driving mode.

[0109] In one possible embodiment, the current road surface dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information include: longitudinal acceleration threshold, lateral acceleration threshold, and lateral acceleration threshold; the determination module 402 is further used to obtain a judgment result of the current road surface dimension information that the driving mode needs to be switched when at least one item in the current road surface dimension information is greater than the corresponding threshold; when each item in the current road surface dimension information is less than or equal to the corresponding threshold, obtain a judgment result of the current road surface dimension information that the driving mode does not need to be switched.

[0110] In one possible embodiment, the current scene information includes the current rainfall and the current speed of the target vehicle, and the thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; the determination module 402 is further used to obtain a judgment result of the current scene information indicating that the driving mode needs to be switched when the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold; when the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, obtain a judgment result of the current scene information indicating that the driving mode does not need to be switched.

[0111] In one possible embodiment, the determination module 402 is further used to calculate the score of the current driver dimensional information based on the current parameter value of each parameter in the current driver dimensional information, and obtain the judgment result of the current driver dimensional information based on the score of the current driver dimensional information and the threshold value corresponding to the current driver dimensional information; calculate the score of the current vehicle dimensional information based on the current parameter value of each parameter in the current vehicle dimensional information, and obtain the judgment result of the current vehicle dimensional information based on the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information.

[0112] The device in this embodiment is presented in the form of a functional unit, where the functional unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0113] Please refer to Figure 5, which is a schematic diagram of the hardware structure of a vehicle provided in an embodiment of the present application, wherein the vehicle includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed in the vehicle, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple vehicles can be connected, and each device provides part of the necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system).

[0114] The processor 10 may be a central processing unit, a network processor, or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic, or any combination thereof.

[0115] The memory 20 stores instructions that can be executed by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0116] The memory 20 may include a program storage area and a data storage area. The program storage area may store an operating system and applications required for at least one function; the data storage area may store data generated based on vehicle usage, etc. Furthermore, the memory 20 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some optional embodiments, the memory 20 may optionally include a memory remotely located relative to the processor 10, and such remote memory may be connected to the vehicle via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0117] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0118] The vehicle further includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30, and the output device 40 may be connected via a bus or other means.

[0119] The input device 30 can receive input digital or character information and generate key signal input related to the user settings and function control of the vehicle, such as a touch screen, a keypad, a mouse, a trackpad, a touch pad, a pointer, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 can include a display device, an auxiliary lighting device (e.g., an LED), and a tactile feedback device (e.g., a vibration motor). The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display, and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0120] The vehicle further includes a communication interface for the vehicle to communicate with other devices or a communication network.

[0121] The embodiments of the present application also provide a computer-readable storage medium. The above-mentioned method according to the embodiment of the present application can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0122] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A method for switching a driving mode of a vehicle, characterized in that: The method comprises: When the driving mode of the target vehicle is a two-wheel drive mode, obtaining information currently used for judgment, the current information currently used for judgment including: current scene information, current driver dimension information, current vehicle dimension information, and current road surface dimension information, wherein the current scene information includes current parameter values of parameters related to current weather, the current driver dimension information includes current parameter values of parameters of the driver of the target vehicle, the current vehicle dimension information includes: current parameter values of parameters related to the environment and current parameter values of parameters used for driving safety reminders, and the current road surface dimension information includes current parameter values of acceleration parameters of the target vehicle; determining whether to switch the driving mode according to the information currently used for judgment, each piece of information in the information currently used for judgment, and a threshold value corresponding to each piece of information; If so, the driving mode of the target vehicle is switched from the two-wheel drive mode to the four-wheel drive mode.

2. The method according to claim 1, characterized in that Determining whether to switch the driving mode according to the information currently used for judgment, each piece of information in the information currently used for judgment, and a threshold corresponding to each piece of information includes: For each piece of information currently used for judgment, obtaining a judgment result of the information according to the information and a threshold value corresponding to the information; Obtaining a current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information, and the judgment result of the current road dimension information; Whether to switch the driving mode is determined according to the judgment result of the current scene information and the current comprehensive judgment result.

3. The method according to claim 2, characterized in that The current comprehensive judgment result obtained based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information, and the judgment result of the current road dimension information includes: When at least one of the judgment results of the current driver dimension information, the current vehicle dimension information, and the current road dimension information indicates that a drive mode switch is required, a comprehensive judgment result indicating that a drive mode switch is required is obtained; When there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, a comprehensive judgment result indicating that the driving mode does not need to be switched is obtained.

4. The method according to claim 3, characterized in that Determining whether to switch the driving mode according to the judgment result of the current scene information and the current comprehensive judgment result includes: When the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched, determining to switch the driving mode; When the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, it is determined not to switch the driving mode.

5. The method according to any one of claims 2 to 4, characterized in that The current road dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road dimension information include: a longitudinal acceleration threshold, a lateral acceleration threshold, and a lateral acceleration threshold; and According to the current road surface dimension information and the threshold value corresponding to the current road surface dimension information, the current road surface dimension information is obtained. The judgment results of dimension information include: When at least one item of the current road surface dimension information is greater than a corresponding threshold, a determination result of the current road surface dimension information that a driving mode switch is required is obtained; When each item in the current road surface dimension information is less than or equal to the corresponding threshold value, a judgment result of the current road surface dimension information is obtained, indicating that there is no need to switch the driving mode.

6. The method according to any one of claims 2 to 4, characterized in that The current scene information includes the current rainfall and the current speed of the target vehicle. The thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; and Obtaining a determination result of the current scene information according to the current scene information and a threshold value corresponding to the current scene information includes: When the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold, obtaining a judgment result of the current scene information indicating that a driving mode switch is required; When the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, a judgment result of the current scene information is obtained, indicating that there is no need to switch the driving mode.

7. The method according to any one of claims 2 to 4, characterized in that Obtaining a determination result of the current driver dimension information according to the current driver dimension information and a threshold value corresponding to the current driver dimension information includes: Calculating a score of the current driver dimensional information according to a current parameter value of each parameter in the current driver dimensional information, and obtaining a judgment result of the current driver dimensional information according to the score of the current driver dimensional information and a threshold value corresponding to the current driver dimensional information; and Obtaining a judgment result of the current vehicle dimension information according to the current vehicle dimension information and a threshold value corresponding to the current vehicle dimension information includes: According to the current parameter value of each parameter in the current vehicle dimensional information, the score of the current vehicle dimensional information is calculated, and according to the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information, the judgment result of the current vehicle dimensional information is obtained.

8. A device for switching a driving mode of a vehicle, characterized in that: The device is installed on a vehicle and comprises: an acquisition module, configured to acquire information currently used for determination when the drive mode of the target vehicle is a two-wheel drive mode, the information currently used for determination including: current scene information, current driver dimension information, current vehicle dimension information, and current road surface dimension information, wherein the current scene information includes current parameter values of parameters related to current weather, the current driver dimension information includes current parameter values of parameters of the driver of the target vehicle, the current vehicle dimension information includes current parameter values of parameters related to the environment and current parameter values of parameters used for driving safety reminders, and the current road surface dimension information includes current parameter values of acceleration parameters of the target vehicle; a determination module, configured to determine whether to switch the driving mode based on the information currently used for determination, each piece of information in the information currently used for determination, and a threshold value corresponding to each piece of information; The switching module is configured to switch the driving mode of the target vehicle from the two-wheel drive mode to the four-wheel drive mode when it is determined that the driving mode is to be switched.

9. The device according to claim 8, characterized in that The determination module is further configured to obtain, for each piece of information currently used for determination, a determination result of the information based on the information and a threshold value corresponding to the information; Obtaining a current comprehensive judgment result based on the judgment result of the current driver dimension information, the judgment result of the current vehicle dimension information, and the judgment result of the current road dimension information; Whether to switch the driving mode is determined according to the judgment result of the current scene information and the current comprehensive judgment result.

10. The device according to claim 9, characterized in that The determining module is further configured to obtain a comprehensive determination result indicating that a driving mode switch is required when at least one of the determination results of the current driver dimension information, the current vehicle dimension information, and the current road dimension information indicates that a driving mode switch is required; When there is no judgment result indicating that the driving mode needs to be switched among the judgment results of the current driver dimension information, the judgment results of the current vehicle dimension information and the judgment results of the current road surface dimension information, a comprehensive judgment result indicating that the driving mode does not need to be switched is obtained.

11. The device according to claim 10, characterized in that The determining module is further configured to determine whether to switch the driving mode when the judgment result of the current scene information indicates that the driving mode needs to be switched and the comprehensive judgment result indicates that the driving mode needs to be switched; When the judgment result of the current scene information indicates that the driving mode does not need to be switched and / or the comprehensive judgment result indicates that the driving mode does not need to be switched, it is determined not to switch the driving mode.

12. The device according to any one of claims 9 to 11, characterized in that The current road surface dimension information includes: the current longitudinal acceleration of the target vehicle, the current lateral acceleration of the target vehicle, and the current lateral acceleration of the target vehicle. The thresholds corresponding to the current road surface dimension information include: longitudinal acceleration threshold, lateral acceleration threshold, and lateral acceleration threshold; the determination module is further used to obtain a judgment result of the current road surface dimension information that the driving mode needs to be switched when at least one item in the current road surface dimension information is greater than the corresponding threshold; when each item in the current road surface dimension information is less than or equal to the corresponding threshold, obtain a judgment result of the current road surface dimension information that the driving mode does not need to be switched.

13. The device according to any one of claims 9 to 11, characterized in that The current scene information includes the current rainfall and the current speed of the target vehicle, and the thresholds corresponding to the current scene information include: a rainfall threshold and a speed threshold; the determination module is further used to obtain a judgment result of the current scene information indicating that the driving mode needs to be switched when the current rainfall is greater than the rainfall threshold and the current speed of the target vehicle is greater than the speed threshold; when the current rainfall is not greater than the rainfall threshold and / or the current speed of the target vehicle is not greater than the speed threshold, obtain a judgment result of the current scene information indicating that the driving mode does not need to be switched.

14. The device according to any one of claims 9 to 11, characterized in that The determination module is further configured to calculate a score of the current driver dimension information based on a current parameter value of each parameter in the current driver dimension information, and obtain a determination result of the current driver dimension information based on the score of the current driver dimension information and a threshold value corresponding to the current driver dimension information; According to the current parameter value of each parameter in the current vehicle dimensional information, the score of the current vehicle dimensional information is calculated, and according to the score of the current vehicle dimensional information and the threshold value corresponding to the current vehicle dimensional information, the judgment result of the current vehicle dimensional information is obtained.

15. A vehicle, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 7 by executing the computer instructions.

16. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method according to any one of claims 1 to 7.

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