Control method and apparatus for traction control system, system, device and vehicle

Abstract

The present application relates to the technical field of vehicle control, and discloses a control method and apparatus for a traction control system, a system, a device and a vehicle. The control method for the traction control system comprises: first, acquiring fault state information (101), the fault state information being used for indicating whether a fault occurs in the traction control system; then, determining switching indication information of the traction control system on the basis of the fault state information (102); and finally, on the basis of the switching indication information, controlling the traction control system to execute a target operation (103), wherein the target operation comprises prohibiting or permitting the traction control system to switch to a target state, the target state comprises an enable state or a ramp-down state, the ramp-down state is used for representing that the control strength of the traction control system is in a degraded state, and the enable state is used for representing that the control of the traction control system is in an activated state.

Description

Control method, device, system, equipment and vehicle of traction control system

[0001] Cross-reference to related applications

[0002] The present application is based on the Chinese patent application No. 202410855810.9, filed on June 28, 2024, and claims the priority of the Chinese patent application No. 202410855810.9, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of vehicle control, in particular to a control method, device, system, equipment and vehicle of traction control system. BACKGROUND

[0004] The function of the traction control system (TCS) is to adjust the driving torque and braking torque acting on the driving wheels, so as to keep the slip of the tires within a reasonable range, thereby maintaining the stability of the vehicle. In recent years, more and more vehicles use traction control system technology. The traction control system can make the vehicle obtain the best traction in various driving conditions.

[0005] The traction control system in the related art only includes two states of opening and closing, and cannot meet the higher vehicle stability requirement. SUMMARY

[0006] The main purpose of the embodiments of the present application is to provide a control method, device, system, equipment and vehicle of traction control system, which aims to improve the driving stability of the vehicle.

[0007] To achieve the above purpose, one aspect of the embodiments of the present application provides a control method of traction control system, comprising the following steps: obtaining fault state information, the fault state information is used to indicate whether the traction control system has a fault; determining switching indication information of the traction control system according to the fault state information; controlling the traction control system to perform a target operation according to the switching indication information, the target operation includes prohibiting or allowing the traction control system to switch to a target state; the target state includes an enabled state or a slow-back state, the slow-back state is used to represent that the control degree of the traction control system is in a degraded state, and the enabled state is used to represent that the control of the traction control system is in an activated state.

[0008] In some embodiments, when the current state is the slow-down state, after the determination of the switching indication information of the traction control system according to the fault state information, the control method of the traction control system further comprises: when the fault state information indicates that the duration of the fault is greater than or equal to the corresponding fault information duration threshold, controlling the traction control system to switch from the slow-down state to the off state according to the switching indication information.

[0009] In some embodiments, the control method of the traction control system further comprises: if the traction control system is in the off state, when an instruction to start the traction control system is received, obtaining the fault state information; and if the fault state information indicates that the traction control system has no fault, controlling the traction control system to enter the enabled state.

[0010] In some embodiments, the traction control system comprises a drive control function, and the control method of the traction control system further comprises: controlling the drive control function to switch to a target state according to the current state of the traction control system in combination with the switching state of the drive control function, the target state comprising the enabled state, the off state and the slow-down state.

[0011] In some embodiments, the controlling the drive control function to switch to a target state according to the current state of the traction control system in combination with the switching state of the drive control function comprises: when the traction control system is in the enabled state, obtaining drive control function switching indication information, the drive control function switching indication information being used to indicate whether the drive control function switching is enabled; and if the drive control function switching indication information indicates that the drive control function switching is enabled, controlling the drive control function to switch to the enabled state.

[0012] In some embodiments, the controlling the drive control function to switch to a target state according to the current state of the traction control system in combination with the switching state of the drive control function further comprises: when the traction control system is in the slow-down state, obtaining drive control function switching indication information, the drive control function switching indication information being used to indicate whether the drive control function switching is enabled; and if the drive control function switching indication information indicates that the drive control function switching is enabled, controlling the drive control function to switch to the slow-down state.

[0013] In some embodiments, the controlling the drive control function to switch to the target state according to the current state of the traction control system in combination with the switch state of the drive control function further comprises: in the case that the traction control system is in the coasting state, obtaining drive control function switch indication information, the drive control function switch indication information being used to indicate whether the drive control function switch is enabled; and if the drive control function switch indication information indicates that the drive control function switch is closed, controlling the drive control function to switch to the closed state.

[0014] In some embodiments, the traction control system comprises a brake control function, and the control method of the traction control system further comprises: controlling the brake control function to switch to a target state according to the current state of the traction control system in combination with the switch state of the brake control function, the target state comprising an enabled state, a closed state, a coasting state and an overbraking enabled state.

[0015] In some embodiments, the controlling the brake control function to switch to the target state according to the current state of the traction control system in combination with the switch state of the brake control function comprises: in the case that the traction control system is in the enabled state, obtaining brake control function switch indication information, the brake control function switch indication information being used to indicate whether the brake control function switch is enabled; and if the brake control function switch indication information indicates that the brake control function switch is enabled, determining the state of the brake control function to switch according to the obtained hydraulic deceleration request information.

[0016] In some embodiments, the determining the state of the brake control function to switch according to the obtained hydraulic deceleration request information comprises: if there is hydraulic deceleration request information generated by a non-traction control system, determining the state of the brake control function to switch by whether speed information of the vehicle satisfies first condition information and second condition information; the first condition information comprises that the obtained vehicle speed is less than an overbraking vehicle speed threshold, and the second condition information comprises that the obtained deceleration is less than a hydraulic deceleration request threshold generated by the non-traction control system.

[0017] In some embodiments, the determining the state of the brake control function to switch by whether the speed information of the vehicle satisfies the first condition information and the second condition information comprises: if the speed information of the vehicle satisfies the first condition information and the second condition information, controlling the brake control function to switch to the overbraking enabled state.

[0018] In some embodiments, the determining the state of the brake control function switching according to the acquired hydraulic deceleration request information further comprises: if there is no hydraulic deceleration request information generated by the non-traction force control system, controlling the brake control function to switch to an enabled state.

[0019] In some embodiments, the determining the state of the brake control function switching according to the acquired hydraulic deceleration request information further comprises: if there is no hydraulic deceleration request information generated by the non-traction force control system, controlling the brake control function to switch to an enabled state.

[0020] In some embodiments, the controlling the brake control function to switch to a target state according to the current state of the traction control system and the switch state of the brake control function further comprises: if the traction control system is in a coasting state, acquiring brake control function switch indication information, the brake control function switch indication information being used to indicate whether the brake control function switch is enabled; and if the brake control function switch indication information indicates that the brake control function switch is enabled, determining the state of the brake control function switching according to the acquired hydraulic deceleration request information.

[0021] In some embodiments, the determining the state of the brake control function switching according to the acquired hydraulic deceleration request information comprises: if there is hydraulic deceleration request information generated by the non-traction force control system, controlling the brake control function to be disabled; and if there is no hydraulic deceleration request information generated by the non-traction force control system, controlling the brake control function to coast.

[0022] In some embodiments, the controlling the brake control function to switch to a target state according to the current state of the traction control system and the switch state of the brake control function further comprises: if the traction control system is in a coasting state, acquiring brake control function switch indication information, the brake control function switch indication information being used to indicate whether the brake control function switch is enabled; and if the brake control function switch indication information indicates that the brake control function switch is disabled, controlling the brake control function to switch to a disabled state.

[0023] To achieve the above object, another aspect of the embodiment of the present application provides a control device of a traction control system, the control device of the traction control system comprising: an acquisition module configured to acquire fault state information, the fault state information being used to indicate whether the traction control system has a fault; a determination module configured to determine switching instruction information of the traction control system according to the fault state information; and a control module configured to control the traction control system to perform a target operation according to the switching instruction information, the target operation comprising prohibiting or allowing the traction control system to switch to a target state; the target state comprising an enabled state or a coasting state, the coasting state being used to represent that a control strength of the traction control system is in a degraded state, and the enabled state being used to represent that the control of the traction control system is in an activated state.

[0024] To achieve the above object, still another aspect of the embodiment of the present application provides a traction control system, which is controlled by the control method of the traction control system to switch states.

[0025] To achieve the above object, still another aspect of the embodiment of the present application provides an electronic device, which comprises a memory and a processor, the memory storing a computer program, and the processor implementing the control method of the traction control system when executing the computer program.

[0026] To achieve the above object, still another aspect of the embodiment of the present application provides a vehicle, which comprises the control device of the traction control system, the traction control system, or the electronic device.

[0027] The embodiment of the present application at least has the following beneficial effects:

[0028] The application provides a control method, device, system and equipment of a traction control system and a vehicle. In the embodiment of the application, first, fault state information is acquired, the fault state information is used to indicate whether the traction control system has a fault; then, switching indication information of the traction control system is determined according to the fault state information; finally, the traction control system is controlled to perform a target operation according to the switching indication information, the target operation including prohibiting or allowing the traction control system to switch to a target state; the target state includes an enabled state or a slow-retraction state, wherein the slow-retraction state is used to represent that the control strength of the traction control system is in a degraded state, and the enabled state is used to represent that the control of the traction control system is in an activated state. Since the fault state information is introduced, the switching indication information of the traction control system can be determined through the fault state information, and the traction control system is controlled to switch according to the switching indication information, and the switched state includes the slow-retraction state, so that the driving stability of the vehicle is improved, and the safety of the vehicle driving is further ensured.

[0029] Additional aspects and advantages of the application will be made apparent by the following description and the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and / or additional aspects and advantages of the application will become apparent and be readily understood by considering the following detailed description, including the accompanying drawings, in which:

[0031] Fig. 1 is a flowchart of a control method of a traction control system according to some embodiments of the application;

[0032] Fig. 2 is a schematic diagram of state switching of a traction control system according to some embodiments of the application;

[0033] Fig. 3 is a schematic diagram of state control of a driving control function in a traction control system according to some embodiments of the application;

[0034] Fig. 4 is a schematic diagram of state control of a braking control function in a traction control system according to some embodiments of the application;

[0035] Fig. 5 is a schematic block diagram of a module of a control device of a traction control system according to some embodiments of the application;

[0036] Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to some embodiments of the application. EMBODIMENTS OF THE INVENTION

[0037] For the purposes of the present application, the term "about" means ± 10% of the value being described. In order to make the objects, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that, in the present document, referring to "embodiments" means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various locations in the specification does not necessarily all refer to the same embodiments, nor is it necessarily mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present application. They are merely examples of apparatuses and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0038] It can be understood that the terms "first", "second", and the like used in the present application can be used herein to describe various concepts, but unless specifically stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another concept. For example, without departing from the scope of the embodiments of the present application, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining".

[0039] The terms "at least one", "multiple", "each", "any", and the like used in the present application include one, two, or more than two, multiple includes two or more than two, each refers to each of the corresponding plurality, and any refers to any one of the plurality.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are merely for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0041] In the following description, specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, persons skilled in the art will understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary details.

[0042] In order to make the inventive concept of the present application easy to understand, before the detailed description of the embodiments of the present application, the English abbreviations (terms) / related concepts involved in the embodiments of the present application are first described, which are applicable to the following explanations.

[0043] TCS: TCS is the English full name of Traction Control System, abbreviated as TCS, which is usually explained in Chinese as traction control system. The function of traction control system is to adjust the driving torque and braking torque acting on the driving wheel, so as to keep the slip amount of the tire within a reasonable range, thereby maintaining the stability of the vehicle driving.

[0044] PTC: PTC is the English full name of Power train Traction Control, abbreviated as PTC, which is usually explained in Chinese as drive control. PTC is a part of the control of traction control system.

[0045] BTC: BTC is the English full name of Brake train Traction Control, abbreviated as BTC, which is usually explained in Chinese as brake control. BTC is also a part of the control of traction control system.

[0046] IMU: IMU is the abbreviation of Inertial Measurement Unit. It is a kind of sensor used to measure and track the acceleration, angular velocity and position of the object to provide information about the motion state of the object. IMU usually contains one or more accelerometers, gyroscopes and sometimes also includes magnetometers. These sensors can be combined to provide acceleration data in three directions (pitch, roll and yaw) and angular velocity data in three directions (pitch, roll and yaw).

[0047] The function of traction control system (Traction Control System, abbreviated as TCS) is to adjust the driving torque and braking torque acting on the driving wheel, so as to keep the slip amount of the tire within a reasonable range, thereby maintaining the stability of the vehicle driving. In recent years, more and more cars use traction control system technology. Traction control system can make the car obtain the best traction in various driving conditions.

[0048] The control of the TCS mainly includes two parts, drive control PTC and brake control BTC, and the control method in the related art is generally that the PTC and the BTC perform operation and control according to wheel speed sensors, IMU sensors and drive related information, and the control mode after the above sensors fail is not considered, in addition, the traction control system in the related art only includes two states of opening and closing, and cannot meet the higher vehicle stability demand.

[0049] Therefore, the present application provides a control method, device and system of a traction control system, equipment and a vehicle. The method comprises the following steps: obtaining fault state information, the fault state information being used to indicate whether the traction control system has a fault; determining switching indication information of the traction control system according to the fault state information; and controlling the traction control system to perform a target operation according to the switching indication information, the target operation comprising prohibiting or allowing the traction control system to switch to a target state, the target state comprising an enabled state or a slow-reverse state, wherein the slow-reverse state is used to represent that the control strength of the traction control system is in a degraded state, and the enabled state is used to represent that the control of the traction control system is in an activated state. Since the fault state information is introduced, the switching indication information of the traction control system can be determined through the fault state information, and the traction control system is controlled to switch states according to the switching indication information, the switched states including the slow-reverse state, so that the driving stability of the vehicle is improved, and the safety of the vehicle driving is further ensured.

[0050] The method provided in the embodiments of the present application can be applied to the electronic device provided in the embodiments of the present application, and the electronic device can be an electronic control unit in a vehicle.

[0051] The method provided in the embodiments of the present application can also be applied to the traction control system of the vehicle provided in the embodiments of the present application.

[0052] The method provided in the embodiments of the present application can also be applied to a vehicle, and the vehicle can be a private car, such as a sedan, an SUV, an MPV or a pickup truck, etc. The vehicle can also be an operating vehicle, such as a van, a bus, a small truck or a large trailer, etc. The vehicle can be a gasoline car or a new energy car. When the vehicle is a new energy car, it can be a hybrid car or a pure electric car.

[0053] The implementation steps of the control method of the traction control system provided in the embodiments of the present application will be described in detail below with reference to the drawings.

[0054] Please refer to Fig. 1, which is a flow chart of a control method of a traction control system according to some embodiments of the present application. It should be noted that the steps shown in the flow chart 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 flow chart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0055] The method of the embodiments of the present application comprises the following steps:

[0056] Step 101: obtaining fault state information, wherein the fault state information can be used to indicate whether the TCS has a fault;

[0057] Step 102: determining switching indication information of the TCS according to the obtained fault state information;

[0058] Step 103: controlling the TCS to perform a corresponding target operation according to the determined switching indication information, wherein the target operation can include prohibiting or allowing the TCS to switch to a target state;

[0059] The target state can include an enabled state or a fallback state, and the fallback state can be used to represent that the control strength of the traction control system is in a degraded state, and the enabled state can be used to represent that the control of the TCS is in an activated state.

[0060] The steps 101 to 103 shown in the embodiments of the present application, by obtaining fault state information, the fault state information is used to indicate whether the TCS has a fault; then, determining the switching indication information of the TCS according to the fault state information; finally, controlling the TCS to perform a target operation according to the switching indication information, wherein the target operation includes prohibiting or allowing the TCS to switch to a target state; the target state can include an enabled state or a fallback state, wherein the fallback state can be used to represent that the control strength of the traction control system is in a degraded state, and the enabled state can be used to represent that the control of the TCS is in an activated state. Since the fault state information is introduced, the switching indication information of the TCS can be determined through the fault state information, and the TCS is controlled to switch according to the switching indication information, and the switched state includes the fallback state, so as to improve the driving stability of the vehicle and further ensure the safety of the vehicle driving.

[0061] The specific implementation modes of the above steps are described below.

[0062] In step 101, fault state information is obtained, wherein the fault state information can be used to indicate whether the TCS has a fault.

[0063] The fault can be a fault generated by hardware or software involved in the TCS of the vehicle, for example, can be a fault generated by a wheel speed sensor, an IMU sensor, a drive-related, and the like, which is not limited in the present application.

[0064] The fault state information can be a fault reported by the TCS; or can be a duration of the corresponding fault reported by the TCS. The fault state information can be a fault code, and the corresponding fault can be queried by the reported fault code.

[0065] The fault state information can be obtained by a sensor or by a fault diagnosis interface, which is not limited in the present application.

[0066] The embodiments provided in the present application provide data support for subsequent determination of the switching indication information of the TCS by the fault state information by obtaining the fault state information.

[0067] In step 102, the switching indication information of the TCS can be determined according to the obtained fault state information.

[0068] For example, when the TCS is in an enabled state (i.e., the TCS function is activated), and there is no reported fault information in the TCS at present, the TCS can maintain the activated state. When the TCS is in the enabled state, and at present, at least one fault information is suddenly reported in the TCS, the TCS can be controlled to switch to a slow retreat state; or when there is no fault information in the TCS in the enabled state, when any fault information appears, the TCS can be controlled to switch to a slow retreat state. The slow retreat state can be used to represent that the control strength of the TCS is in a degraded state. In this way, the control strength of the traction force of the vehicle can be guaranteed as much as possible, so that the TCS is not directly turned off due to fault information, and the reported fault information is not ignored, which affects the driving safety of the vehicle.

[0069] In step 103, the TCS can be controlled to perform a corresponding target operation according to the determined switching indication information of the TCS, wherein the target operation can include prohibiting or allowing the TCS to switch to a target state; and the target state can include an enabled state or a slow retreat state. The slow retreat state can be used to represent that the control strength of the TCS is in a degraded state, and the enabled state can be used to represent that the control of the TCS is in an activated state.

[0070] Exemplarily, if the switching indication information of the TCS indicates to switch the TCS to the slow-down state (target state), the TCS can be controlled to switch to the slow-down state; if the switching indication information of the TCS indicates to switch the TCS to the enable state (target state), the TCS can be controlled to switch to the enable state; if the switching indication information of the TCS indicates to prohibit the TCS from switching to the slow-down state, the TCS can maintain the current state, which can be the enable state.

[0071] In some embodiments, if the current state is the slow-down state and the fault state information indicates that the duration of the current fault is greater than or equal to the duration threshold of the corresponding fault information, the TCS can be controlled to switch from the slow-down state to the off state according to the determined switching indication information of the TCS.

[0072] The current fault can be a fault generated by a wheel speed sensor, an IMU sensor or a drive control related fault. It should be understood that the duration threshold of the corresponding fault information can be the same or different for different faults. For example, the duration threshold of the fault information for a fault generated by a wheel speed sensor can be T1, and the duration threshold of the fault information for a fault generated by an IMU sensor can be T2, where T1 and T2 can be the same or different.

[0073] It should be understood that as long as the duration of one fault in the TCS is greater than or equal to the duration threshold of the corresponding fault information, the TCS can be controlled to switch from the slow-down state to the off state. When there is only one fault in the TCS, the TCS can be controlled to switch from the enable state to the slow-down state.

[0074] In some embodiments, if the TCS is currently in the off state and an instruction to start the TCS is received, the fault state information can be obtained; if the fault state information indicates that there is no fault in the current TCS, the TCS can be controlled to switch to the enable state.

[0075] Please refer to FIG. 2, which is a state switching diagram of a traction control system according to some embodiments of the present application. In FIG. 2, the TCS includes three states: TCS off, TCS slow-down and TCS enable.

[0076] As shown in FIG. 2, when the TCS is in the enabled state, if any fault information occurs, the TCS is controlled to switch to the TCS slow-down state; when the TCS is in the slow-down state, if the fault is recovered before reaching the time threshold of the corresponding fault information duration (i.e., the reported fault information is eliminated before the time threshold of the corresponding fault information duration), the TCS is controlled to switch (back) to the TCS enabled state; when the TCS is in the slow-down state, if the fault has not been recovered when reaching the time threshold of the corresponding fault information duration (i.e., the fault is timed out), the TCS is controlled to switch to the TCS closed state; when the TCS is in the closed state, if a TCS function opening instruction is received, for example, the TCS switch is opened, at this time, if there is no fault information in the TCS, the TCS is controlled to switch to the TCS enabled state (i.e., when the TCS is in the closed state, the prerequisite for the vehicle system to open the TCS function is that there is no fault information in the TCS).

[0077] Exemplarily, when the TCS is in the slow-down state, the time threshold of the fault information duration corresponding to the IMU sensor is 1 second, and the duration of the fault currently reported by the IMU sensor has reached or exceeded 1 second, the TCS is controlled to switch to the TCS closed state.

[0078] In some embodiments, the TCS includes a drive control function (PTC), and the PTC can be controlled to switch to a target state according to the current state of the TCS in combination with the switch state of the PTC, wherein the target state includes a PTC enabled state, a PTC closed state, and a PTC slow-down state.

[0079] It should be understood that, in order to facilitate fine control of the TCS and improve the personalized driving level, the PTC user switch is provided in the embodiments of the present application, and the user can open and close the PTC through the PTC user switch.

[0080] The PTC user switch can be arranged in the display interface of the vehicle central control system, and the user can open or close the PTC switch through the central control display interface. The operation of the PTC switch can be realized by the way of pressing the key, or by the way of touching the corresponding icon on the touch screen, or by the way of voice control, or by the way of the control interface of the terminal of the central control system, and the specific operation mode of the PTC switch is not limited in the present application.

[0081] In some embodiments, if the TCS is in the enabled state, the indication information of the PTC switch can be obtained, which can be used to indicate whether the PTC switch is enabled; if the PTC switch indication information indicates that the PTC switch is in the enabled state, the PTC is controlled to switch to the enabled state.

[0082] In some embodiments, if the TCS is in the coasting state, it is determined whether the PTC switch is enabled (whether the PTC switch is in the ON state), wherein the determining action can be performed by acquiring indication information of the PTC switch, wherein the indication information of the PTC switch can be used to indicate whether the PTC switch is enabled; if the PTC switch is enabled, the PTC is controlled to switch to the coasting state.

[0083] In some embodiments, if the TCS is in the coasting state, it is determined whether the PTC switch is enabled, wherein the determining action can be performed by acquiring indication information of the PTC switch, wherein the indication information of the PTC switch can be used to indicate whether the PTC switch is enabled; if the PTC switch is closed, the PTC is controlled to switch to the closed state.

[0084] Please refer to FIG. 3, which is a state control diagram of the driving control function in the traction control system according to some embodiments of the present application. In FIG. 3, the PTC includes three states: PTC closed, PTC coasting and PTC enabled.

[0085] As shown in FIG. 3, when the TCS is in the enabled state and the PTC user switch is in the enabled state, the PTC is controlled to switch to the PTC enabled state; when the TCS is in the coasting state and the PTC user switch is in the enabled state, the PTC is controlled to switch to the PTC coasting state; otherwise, the PTC is controlled to switch to the PTC closed state.

[0086] For example, if the TCS is enabled and the PTC user switch is enabled, the PTC enters the enabled state; if the TCS is in the coasting state and the PTC user switch is enabled, the PTC enters the coasting state; otherwise, the PTC enters the closed state.

[0087] In some embodiments, the TCS includes a brake control function (BTC), and the BTC can be controlled to switch to a target state according to the current state of the TCS and the switch state of the BTC, wherein the target state includes a BTC enabled state, a BTC closed state, a BTC coasting state and a BTC superimposed braking enabled state.

[0088] It should be understood that, in order to facilitate fine control of the TCS, the embodiments of the present application provide a BTC user switch (BTC switch), and the user can turn on and off the BTC through the BTC user switch.

[0089] The BTC user switch can be arranged in a display interface of a vehicle central control system, and a user can turn on or turn off the BTC switch through the central control display interface. The operation of the BTC switch can be realized by means of a button, or realized by means of touching a corresponding icon on a touch screen, or realized by means of voice control, or realized by means of a control interface of the terminal of the central control system. The specific operation mode of the BTC switch is not limited in the present application.

[0090] In some embodiments, the BTC switch indication information is acquired when the TCS is in an enabled state, wherein the BTC switch indication information can be used to indicate whether the BTC switch is enabled (whether in an ON state); if the BTC switch indication information indicates that the BTC switch is enabled, the state of the BTC switching is determined according to the acquired hydraulic retardation request information.

[0091] The hydraulic retardation request information can be acquired through related signals of a braking system, which can come from a brake pedal position sensor, a brake pressure sensor or an anti-lock braking system (ABS) sensor. The source of the hydraulic retardation request information is not limited in the present application.

[0092] In some embodiments, if there is hydraulic retardation request information generated by a non-TCS, i.e., there is hydraulic retardation request information generated by an ABS or there is hydraulic retardation request information generated by a vehicle stability control system (ESC), then the state of the BTC switching can be determined by whether the speed information of the vehicle satisfies first condition information and second condition information; wherein the first condition information can include that the acquired vehicle speed is less than a superimposed braking vehicle speed threshold, and the second condition information can include that the acquired deceleration is less than a hydraulic retardation request threshold generated by a non-traction control system.

[0093] The speed information of the vehicle can include acquired vehicle speed information and acquired vehicle deceleration information.

[0094] Exemplarily, the superimposed braking vehicle speed threshold can be set to 10 km / h. It should be understood that the superimposed braking vehicle speed threshold can be flexibly set according to a specific vehicle model and a driving environment of the vehicle, and the present application does not limit this.

[0095] Exemplarily, the hydraulic retardation request threshold generated by a non-TCS can be set to 1 m / s 2 . It should be understood that the hydraulic retardation request threshold generated by a non-TCS can be flexibly set according to a specific vehicle model and a driving environment of the vehicle, and the present application does not limit this.

[0096] In some embodiments, if the speed information of the vehicle satisfies the first condition information and at the same time satisfies the second condition information, the BTC is controlled to switch to the superimposed braking enabled state. It should be understood that the superimposed braking enabled state means that there is a hydraulic braking signal generated by the BTC, and at the same time there is a hydraulic braking signal generated by other systems, such as ABS.

[0097] Exemplarily, if the acquired vehicle speed information of the vehicle is less than the superimposed braking vehicle speed threshold, and the acquired deceleration information of the vehicle is less than the non-TCS generated hydraulic deceleration request threshold, the BTC is controlled to switch to the superimposed braking enabled state.

[0098] The embodiments provided in the present application consider the case of superimposed braking in the BTC control state management, because it is considered that there are other functions that will request hydraulic braking. Whether there is other hydraulic deceleration request can be obtained according to the braking system related signals. The other hydraulic deceleration request threshold and the superimposed braking vehicle speed threshold are set, and superimposed braking is only allowed when the vehicle speed is less than the superimposed braking vehicle speed threshold and the deceleration is less than the other hydraulic deceleration request threshold, thereby improving the braking safety.

[0099] In some embodiments, if the speed information of the vehicle does not satisfy the first condition information or does not satisfy the second condition information, the BTC is controlled to switch to the closed state.

[0100] Exemplarily, if the acquired vehicle speed information of the vehicle is greater than the superimposed braking vehicle speed threshold, and the acquired deceleration information of the vehicle is less than the non-TCS generated hydraulic deceleration request threshold; or if the acquired vehicle speed information of the vehicle is less than the superimposed braking vehicle speed threshold, and the acquired deceleration information of the vehicle is greater than the non-TCS generated hydraulic deceleration request threshold; or if the acquired vehicle speed information of the vehicle is greater than the superimposed braking vehicle speed threshold, and the acquired deceleration information of the vehicle is greater than the non-TCS generated hydraulic deceleration request threshold; the BTC is controlled to switch to the closed state.

[0101] In some embodiments, if there is no non-TCS generated hydraulic deceleration request information, the BTC is controlled to switch to the enabled state.

[0102] In some embodiments, in the case that the TCS is in the coasting state, it is determined whether the BTC switch is enabled, wherein the determination action can be achieved by acquiring the BTC switch indication information, and the BTC switch indication information can be used to indicate whether the BTC switch is enabled; if the BTC switch indication information indicates that the BTC switch is enabled, the state of the BTC switching can be determined according to the acquired hydraulic deceleration request information.

[0103] In some embodiments, if there is non-TCS generated hydraulic deceleration request information, the BTC is controlled to be closed; if there is no non-TCS generated hydraulic deceleration request information, the BTC is controlled to be coasting.

[0104] In some embodiments, if the TCS is in the coasting state, it is determined whether the BTC switch is enabled, and the determining can be achieved by acquiring BTC switch indication information, the BTC switch indication information being used to indicate whether the BTC switch is enabled; if the BTC switch indication information indicates that the BTC switch is closed, the BTC is controlled to be switched to the closed state.

[0105] Please refer to FIG. 4, which is a state control schematic diagram of the brake control function in the traction control system according to some embodiments of the present application. In FIG. 4, the BTC includes four states, which are: the BTC enabled state, the BTC closed state, the BTC coasting state and the BTC superimposed braking enabled state.

[0106] As shown in FIG. 4, when the TCS is in the enabled state and the BTC user switch is in the enabled state, it is necessary to determine whether there is other hydraulic deceleration request. If there is no other hydraulic deceleration request, the BTC is controlled to be switched to the BTC enabled state; if there is other hydraulic deceleration request, it is determined whether superimposed braking is allowed. If the superimposed braking is allowed, the BTC is controlled to be switched to the BTC superimposed braking enabled state; if the superimposed braking is not allowed, the BTC is controlled to be switched to the BTC closed state. It should be understood that the superimposed braking is allowed only when the vehicle speed is less than the superimposed braking vehicle speed threshold and the deceleration is less than the other hydraulic deceleration request threshold.

[0107] When the TCS is in the coasting state and the BTC user switch is in the enabled state, it is necessary to determine whether there is other hydraulic deceleration request. If there is no other hydraulic deceleration request, the BTC is controlled to be switched to the BTC coasting state; if there is other hydraulic deceleration request, the BTC is controlled to be switched to the BTC closed state.

[0108] If the TCS is in the coasting state and the BTC user switch is in the closed state, or the TCS is in the closed state, the BTC is controlled to be switched to the BTC closed state.

[0109] Exemplarily, the PTC and the BTC user switch are both in the enabled state. When the TCS is enabled, a wheel speed sensor fault occurs. At this time, the TCS control state enters the coasting state, the PTC control state enters the coasting state, there is no other hydraulic request except the BTC, and the BTC control state enters the coasting state. If the wheel speed sensor fault duration exceeds the wheel speed sensor fault time threshold, the TCS control state, the PTC control state and the BTC control state all enter the closed state.

[0110] Exemplarily, the PTC user switch and the BTC user switch are both enabled. When the TCS is enabled, no fault occurs, at this time, the TCS control state enters an enabled state, the PTC control state enters an enabled state, other hydraulic requests exist except the BTC, the vehicle speed is greater than a threshold of other hydraulic deceleration requests, the superimposed braking is not allowed, and the BTC control state enters a closed state.

[0111] The embodiment of the present application controls the TCS to perform a corresponding target operation through the determined switching indication information, wherein the target operation can include prohibiting or allowing the TCS to switch to a target state, the target state can include an enabled state or a slow-back state, the slow-back state can be used to indicate that the control strength of the TCS is in a degraded state, and the enabled state can be used to indicate that the control of the TCS is in an activated state. Since the slow-back state is introduced, the driving stability of the vehicle is improved. By setting the PTC user switch and the BTC user switch, the fine control of the TCS is further realized, which is beneficial to improve the personalized driving level of the user. Through the superimposed braking control, the safety of the vehicle driving is further ensured.

[0112] The embodiment of the present application sets the PTC user switch and the BTC user switch to improve the personalized driving level of the user, wherein the PTC and the BTC can be set according to the driving style of the driver. For example, in a driving scenario requiring strong driving capability, or in driving in sand, it is desired that the control strength of the PTC is smaller, at this time, the PTC switch can be closed. When the vehicle dynamic control system (VDC) of the vehicle needs to be tested, it is desired that the control strength of the BTC is smaller, at this time, the BTC switch can be selected to be closed.

[0113] The above is the introduction of the method embodiment of the present application.

[0114] The embodiments of the control device of the traction control system provided by the present application will be described in detail below with reference to the accompanying drawings.

[0115] For the control method of the traction control system provided by the above embodiment, the present application further provides a control device of the traction control system for implementing the above method. As shown in FIG. 5, FIG. 5 is a module schematic block diagram of the control device of the traction control system according to the embodiment of the present application, the control device 500 of the traction control system includes:

[0116] The acquisition module 501 is configured to acquire fault state information, wherein the fault state information can be used to indicate whether the TCS has a fault.

[0117] The determining module 502 is configured to determine the switching indication information of the TCS according to the obtained fault state information.

[0118] The control module 503 is configured to control the TCS to perform a corresponding target operation according to the determined switching indication information, where the target operation can include disabling or enabling the TCS to switch to a target state.

[0119] The target state can include an enabling state or a retreating state, and the retreating state can be used to represent that the control strength of the TCS is in a degraded state, and the enabling state can be used to represent that the control of the TCS is in an activated state.

[0120] It can be understood that the contents in the above method embodiments are applicable to the device embodiments, the device embodiments specifically implement the functions of the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0121] As shown in FIG. 6, the embodiment of the present application further provides an electronic device, the electronic device 600 includes a memory 601, one or more processors 602 (only one is shown in FIG. 6) and a computer program stored in the memory 601 and executable on the processor 602 (the processor, the memory and the communication interface are connected through a bus). Wherein: the memory 601 is used to store software programs and units, the processor 602 executes various functional applications and data processing by running the software programs and units stored in the memory, so as to obtain the resources corresponding to the above-mentioned preset event. Optionally, the processor 602 realizes the control method of the traction control system by running the above-mentioned computer program stored in the memory 601.

[0122] The memory 601 is a kind of non-transient computer readable medium, and can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory can include high-speed random access memory, and can also include non-transient memory, such as at least one magnetic disk storage device, flash memory device or other non-transient solid-state memory device. In some embodiments, the memory can optionally include remotely arranged memory relative to the processor, and these remote memories can be connected to the processor through a network.

[0123] It can be understood that the contents in the above method embodiments are applicable to the electronic device embodiments, the electronic device embodiments specifically implement the functions of the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0124] The embodiment of the present application further provides a traction control system, and the traction control system is switched by the control method of the traction control system

[0125] It can be understood that the contents in the above method embodiments are all applicable to the present system embodiments, the present system embodiments specifically implement the functions same as those of the above method embodiments, and achieve the same beneficial effects as those of the above method embodiments.

[0126] The present application also provides a vehicle, which comprises the control device of the above traction control system, the above traction control system or the electric drive assembly of the above electronic device. Specifically, the vehicle can be a private car, such as a sedan, an SUV, an MPV or a pickup truck, etc. The vehicle can also be an operating vehicle, such as a van, a bus, a small truck or a large trailer, etc. The vehicle can be a gasoline car or a new energy car. When the vehicle is a new energy car, it can be a hybrid car or a pure electric car.

[0127] It can be understood that the contents in the above method embodiments are all applicable to the present vehicle embodiments, the present vehicle embodiments specifically implement the functions same as those of the above method embodiments, and achieve the same beneficial effects as those of the above method embodiments.

[0128] The present application also provides a computer program product, which comprises a computer program, and the computer program can implement the steps of the above control method of the traction control system when executed by one or more processors.

[0129] It can be understood that the contents in the above method embodiments are all applicable to the present computer program product, the present computer program product embodiment specifically implements the functions same as those of the above method embodiments, and achieves the same beneficial effects as those of the above method embodiments.

[0130] The control method, device and system of the traction control system, the electronic device, the vehicle and the computer program product provided by the present application can control the TCS to perform a corresponding target operation through the determined switching indication information, wherein the target operation can include prohibiting or allowing the TCS to switch to a target state, the target state can include an enabled state or a slow-back state, the slow-back state can be used to represent that the control strength of the TCS is in a degraded state, and the enabled state can be used to represent that the control of the TCS is in an activated state. Since the slow-back state is introduced, the driving stability of the vehicle is improved. By setting the PTC user switch and the BTC user switch, the fine control of the TCS is further implemented, which is beneficial to improving the individual driving level of the user. Through the superimposed brake control, the safety of the vehicle driving is further ensured.

[0131] The embodiments described in the present application are to more clearly illustrate the technical solutions of the present application, and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0132] Although specific embodiments are described herein, one of ordinary skill in the art will recognize that many other modifications or alternative embodiments come within the scope of the present disclosure. For example, any of the functions and / or processing capabilities described in connection with a particular device or component can be performed by any other device or component. Additionally, although various illustrative implementations and architectures have been described in accordance with embodiments of the present disclosure, one of ordinary skill in the art will recognize that many other modifications to the illustrative implementations and architectures described herein come within the scope of the present disclosure.

[0133] Certain aspects of the present disclosure are described above with reference to block and flow diagrams of systems, methods, systems, and / or computer program products according to example embodiments. It will be understood that one or more blocks of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by

[0134] Thus, the blocks in the block diagrams and flow diagrams support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions, and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by dedicated hardware-based computer systems which perform the specified functions or combinations of special-purpose hardware and computer instructions.

[0135] The program modules, applications, and the like described herein can include one or more software components, including, for example, software objects, methods, data structures, and the like. Each such software component can include computer-executable instructions that, in response to execution, cause at least a portion of the functionality described herein (e.g., one or more operations of the example methods described herein) to be performed.

[0136] Software components can be coded in any of a variety of programming languages. One illustrative programming language can be a low-level programming language such as an assembly language associated with a specific hardware architecture and / or operating system platform. Software components comprising assembly language instructions can need to be translated via an assembler before execution by the hardware architecture and / or platform. Another illustrative programming language can be a higher-level programming language that can be portable to multiple architectures. Software components comprising a higher-level programming language can need to be translated to an intermediate representation before execution via an interpreter or compiler. Other examples of programming languages include, but are not limited to, a macro language, a shell or command language, a job control language, a script language, a database query or search language, or a report writing language. In one or more illustrative embodiments, a software component containing instructions in one of the above examples of programming languages can be executed directly by an operating system or other software component without first being converted to another form.

[0137] Software components can be stored as files or other data storage constructs. Software components of a similar type or related function can be stored together such as in a particular directory, folder, or library. Software components can be static (e.g., preset or fixed) or dynamic (e.g., created or modified at execution time).

[0138] The above embodiments of the present application have been described in detail but not limited to the above examples, within the scope of knowledge of those skilled in the art, various changes can be made without departing from the spirit of the present application.

Claims

1. A control method of a traction control system, comprising the following steps: obtaining fault state information, the fault state information being used to indicate whether the traction control system has a fault; determining switching indication information of the traction control system according to the fault state information; controlling the traction control system to perform a target operation according to the switching indication information, the target operation comprising prohibiting or allowing the traction control system to switch to a target state; the target state comprises an enabled state or a coasting state, the coasting state being used to represent that the control strength of the traction control system is in a degraded state, and the enabled state being used to represent that the control of the traction control system is in an activated state.

2. The control method of the traction control system according to claim 1, wherein, in the case where the current state is the coasting state, after the step of determining the switching indication information of the traction control system according to the fault state information, the method further comprises: in the case where the fault state information indicates that the duration of the fault is greater than or equal to a corresponding fault information duration threshold, controlling the traction control system to switch from the coasting state to an off state according to the switching indication information.

3. The control method of the traction control system according to claim 1, wherein, further comprising: if the traction control system is in the off state, in the case where an instruction of starting the traction control system is received, obtaining the fault state information; if the fault state information indicates that the traction control system has no fault, controlling the traction control system to enter the enabled state.

4. The control method of the traction control system according to claim 1, wherein, the traction control system comprises a drive control function, and the method further comprises: controlling the drive control function to switch to a target state according to the current state of the traction control system and the switch state of the drive control function, the target state comprising the enabled state, the off state and the coasting state.

5. The control method of the traction control system according to claim 4, wherein, the step of controlling the drive control function to switch to a target state according to the current state of the traction control system and the switch state of the drive control function comprises: in the case where the traction control system is in the enabled state, obtaining drive control function switch indication information, the drive control function switch indication information being used to indicate whether the drive control function switch is enabled; if the drive control function switch indication information indicates that the drive control function switch is enabled, controlling the drive control function to switch to the enabled state.

6. The control method of the traction control system according to claim 4, wherein, the step of controlling the drive control function to switch to a target state according to the current state of the traction control system and the switch state of the drive control function further comprises: in the case where the traction control system is in the coasting state, obtaining drive control function switch indication information, the drive control function switch indication information being used to indicate whether the drive control function switch is enabled; if the drive control function switch indication information indicates that the drive control function switch is enabled, controlling the drive control function to switch to the coasting state.

7. The control method of the traction control system according to claim 4, wherein, the step of controlling the drive control function to switch to a target state according to the current state of the traction control system and the switch state of the drive control function further comprises: In a case where the traction control system is in the coasting state, drive control function switch instruction information is acquired, the drive control function switch instruction information being used to indicate whether the drive control function switch is enabled or not; If the drive control function switch instruction information indicates that the drive control function switch is disabled, the drive control function is controlled to switch to a disabled state.

8. The control method of the traction control system according to claim 1, wherein, The traction control system comprises a brake control function, and the method further comprises: According to the current state of the traction control system and the switch state of the brake control function, the brake control function is controlled to switch to a target state, the target state comprising an enabled state, a disabled state, a coasting state and an overbraking enabled state.

9. The control method of the traction control system according to claim 8, wherein, According to the current state of the traction control system and the switch state of the brake control function, the brake control function is controlled to switch to a target state, the target state comprising an enabled state, a disabled state, a coasting state and an overbraking enabled state. In a case where the traction control system is in the coasting state, drive control function switch instruction information is acquired, the drive control function switch instruction information being used to indicate whether the drive control function switch is enabled or not; If the drive control function switch instruction information indicates that the drive control function switch is enabled, the brake control function is controlled to switch to a state according to the acquired hydraulic deceleration request information.

10. The control method of the traction control system according to claim 9, wherein, The brake control function is controlled to switch to a state according to the acquired hydraulic deceleration request information, comprising: If there is hydraulic deceleration request information generated by a non-traction control system, whether the speed information of the vehicle satisfies first condition information and second condition information is determined to control the brake control function to switch to a state; The first condition information comprises that the acquired vehicle speed is less than an overbraking vehicle speed threshold, and the second condition information comprises that the acquired deceleration is less than a hydraulic deceleration request threshold generated by a non-traction control system.

11. The control method of the traction control system according to claim 10, wherein, The brake control function is controlled to switch to a state according to the acquired hydraulic deceleration request information, comprising: If the speed information of the vehicle satisfies the first condition information and the second condition information, the brake control function is controlled to switch to an overbraking enabled state.

12. The control method of the traction control system according to claim 10, wherein, The brake control function is controlled to switch to a state according to the acquired hydraulic deceleration request information, further comprising: If the speed information of the vehicle does not satisfy the first condition information or the second condition information, the brake control function is controlled to switch to a disabled state.

13. The control method of the traction control system according to claim 9, wherein, The brake control function is controlled to switch to a state according to the acquired hydraulic deceleration request information, further comprising: If there is no hydraulic deceleration request information generated by a non-traction control system, the brake control function is controlled to switch to an enabled state.

14. The control method of the traction control system according to claim 8, wherein, According to the current state of the traction control system and the switch state of the brake control function, the brake control function is controlled to switch to a target state, the target state comprising an enabled state, a disabled state, a coasting state and an overbraking enabled state. ​ If the brake control function switch instruction information indicates that the brake control function switch is enabled, a state of the brake control function switch is determined according to the obtained hydraulic deceleration request information.

15. The control method of the traction control system according to claim 14, wherein, The determining the state of the brake control function switch according to the obtained hydraulic deceleration request information comprises: If there is hydraulic deceleration request information generated by a non-traction force control system, the brake control function is controlled to be closed; If there is no hydraulic deceleration request information generated by a non-traction force control system, the brake control function is controlled to be in a slow-down state.

16. The control method of the traction control system according to claim 8, wherein, The controlling the brake control function to switch to the target state according to the current state of the traction force control system and the switch state of the brake control function further comprises: In a case where the traction force control system is in a slow-down state, brake control function switch instruction information is obtained, the brake control function switch instruction information being used to indicate whether the brake control function switch is enabled; If the brake control function switch instruction information indicates that the brake control function switch is closed, the brake control function is controlled to switch to a closed state. 17.A control device of a traction force control system, the device comprising: an obtaining module configured to obtain fault state information, the fault state information being used to indicate whether there is a fault in the traction force control system; a determining module configured to determine switch instruction information of the traction force control system according to the fault state information; a control module configured to control the traction force control system to perform a target operation according to the switch instruction information, the target operation comprising inhibiting or allowing the traction force control system to switch to a target state; the target state comprising an enabled state or a slow-down state, the slow-down state being used to represent that a control degree of the traction force control system is in a degraded state, and the enabled state being used to represent that the control of the traction force control system is in an activated state. 18.A traction force control system, the traction force control system being controlled to switch states by the control method of the traction force control system according to any one of claims 1 to 16. 19.An electronic device, the electronic device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the control method of the traction force control system according to any one of claims 1 to 16 when executing the computer program. 20.A vehicle, the vehicle comprising the control device of the traction force control system according to claim 17, the traction force control system according to claim 18, or the electronic device according to claim 19.

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