Steering gear temperature monitoring method and system of automatic driving vehicle and vehicle

Abstract

The invention discloses a steering gear temperature monitoring method and system of an automatic driving vehicle and the vehicle, and belongs to the technical field of automatic driving. The method comprises the following steps: the gateway obtains a first temperature value measured by a temperature sensor in the steering gear; the gateway obtains first configuration information of a steering wheel, and determines whether to start a steering heating function according to the first configuration information; if it is determined that the steering heating function is started, the gateway calculates a second temperature value according to the first temperature value and sends the second temperature value to the heater, and the second temperature value is lower than the first temperature value; and the heater heats a steering heating area in the steering wheel to a second temperature value, so that the driver judges whether the overheating protection function is started or not to exit automatic driving according to the temperature of the steering heating area. Whether the automatic driving exits due to starting of the overheating protection function or not can be judged according to the temperature of the steering heating area, so that manual taking-over can be performed in time when the automatic driving exits, traffic accidents are avoided, and the driving safety is improved.

Description

Technical Field

[0001] The present application relates to the field of autonomous driving technology, and in particular to a steering gear temperature monitoring method, system and vehicle for an autonomous driving vehicle. Background Art

[0002] In the current wave of electric vehicles, power batteries will increase the weight of the vehicle, resulting in the need for a larger motor for the electric power steering to drive the vehicle. The high-torque motor requires a large current to drive, which in turn generates more heat and burns the electric control components of the electric power steering (EPS), posing a severe challenge to the heat resistance and safety performance of the electric control components. The electric control components include motors and electronic control units (ECUs).

[0003] In order to avoid burning due to overheating and loss of steering assistance, it is usually necessary to set an overheat protection function to protect the electronic control part. After turning on the overheat protection, the autonomous driving vehicle will exit the autonomous driving function. At this time, EPS can only provide very little assistance, which can easily cause traffic accidents and seriously endanger the driver's safety. Summary of the invention

[0004] The present application provides a steering gear temperature monitoring method, system and vehicle for an autonomous driving vehicle, which is used to solve the problem that the autonomous driving function will be exited after the overheat protection function is activated, which may easily cause traffic accidents. The technical solution is as follows:

[0005] According to a first aspect of the present application, a steering gear temperature monitoring method for an autonomous driving vehicle is provided, which is used in a steering gear temperature monitoring system, wherein the steering gear temperature monitoring system includes a steering gear, a gateway, a steering wheel, and a heater, wherein a steering heating area is provided in the steering wheel, and the method includes:

[0006] The gateway obtains a first temperature value measured by a temperature sensor in the diverter;

[0007] The gateway obtains first configuration information of the steering wheel, and determines whether to turn on the steering heating function according to the first configuration information;

[0008] If it is determined to turn on the steering heating function, the gateway calculates a second temperature value according to the first temperature value, and sends the second temperature value to the heater, wherein the second temperature value is lower than the first temperature value;

[0009] The heater heats the steering heating area in the steering wheel to the second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

[0010] In a possible implementation, the autonomous driving vehicle further includes a central control screen, and the method further includes:

[0011] The central control screen receives a driver's operation of turning on the steering heating function item, generates first configuration information for instructing to turn on the steering heating function according to the turning on operation, and sends the first configuration information to the gateway via a first controller area network CAN bus;

[0012] The gateway obtains first configuration information of the steering wheel, including: the gateway receives the first configuration information through the first CAN bus.

[0013] In a possible implementation, the method further includes:

[0014] The central control screen receives a driver's operation of turning on a steering wheel heating function item, generates second configuration information for instructing to turn on the steering wheel heating function according to the turning on operation, and sends the second configuration information to the heater via the first CAN bus;

[0015] The heater receives the second configuration information through the first CAN bus, and heats a hand heating area in the steering wheel according to the second configuration information, where the hand heating area is different from the steering heating area.

[0016] In one possible implementation,

[0017] The method further includes: the steering device acquires a first temperature value measured by the temperature sensor, and sends the first temperature value to the gateway via a second CAN bus;

[0018] The gateway obtains a first temperature value measured by a temperature sensor in the steering gear, including: the gateway receives the first temperature value through the second CAN.

[0019] In a possible implementation, the autonomous driving vehicle further includes a body controller, and the method further includes:

[0020] The vehicle body controller acquires the second temperature value;

[0021] The vehicle body controller acquires a third temperature value periodically sent by the heater;

[0022] The vehicle body controller determines whether the heater fails according to the third temperature value and the second temperature value.

[0023] In a possible implementation, the vehicle body controller determines whether the heater fails according to the third temperature value and the second temperature value, including:

[0024] The vehicle body controller detects whether the third temperature value received after a predetermined time reaches the second temperature value;

[0025] If the third temperature value received after a predetermined period of time does not reach the second temperature value, the vehicle body controller determines that the heater has failed.

[0026] In a possible implementation, the method further includes:

[0027] If it is determined that the heater fails, the body controller controls the heater to restart.

[0028] In a possible implementation manner, the gateway calculates the second temperature value according to the first temperature value, including:

[0029] The gateway obtains a temperature mapping table, wherein the temperature mapping table includes a mapping relationship between a first temperature value and a second temperature value;

[0030] The gateway searches the temperature mapping table for a second temperature value corresponding to the first temperature value.

[0031] According to a second aspect of the present application, a steering gear temperature monitoring system for an autonomous driving vehicle is provided, the system comprising a steering gear, a gateway, a steering wheel and a heater, wherein a steering heating area is provided in the steering wheel;

[0032] The gateway is used to obtain a first temperature value periodically measured by a temperature sensor in the diverter;

[0033] The gateway is further used to obtain first configuration information of the steering wheel, and determine whether to turn on the steering heating function according to the first configuration information;

[0034] If it is determined to turn on the steering heating function, the gateway is further used to calculate a second temperature value according to the first temperature value, and send the second temperature value to the heater, wherein the second temperature value is lower than the first temperature value;

[0035] The heater is used to heat the steering heating area in the steering wheel to the second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

[0036] According to a third aspect of the present application, an autonomous driving vehicle is provided, wherein the autonomous driving vehicle includes the steering gear temperature monitoring system of the above-mentioned autonomous driving vehicle.

[0037] The beneficial effects of the technical solution provided by this application include at least:

[0038] After the gateway obtains the first temperature value measured by the temperature sensor in the steering gear, the second temperature value is calculated based on the first temperature value, and the second temperature value is sent to the heater. The heater heats the steering heating area in the steering wheel to the second temperature value. In this way, the driver can judge whether to exit the automatic driving due to the activation of the overheating protection function based on the temperature of the steering heating area, so that manual takeover can be carried out in time when exiting the automatic driving, avoiding traffic accidents and improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 is a structural schematic diagram of a steering gear temperature monitoring system according to some exemplary embodiments;

[0041] Figure 2 is a flow chart of a method for monitoring the temperature of a steering gear of an autonomous driving vehicle provided by an embodiment of the present application;

[0042] Figure 3 This is a flow chart of a method for monitoring the steering temperature of an autonomous driving vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0044] like Figure 1 As shown, the steering gear temperature monitoring system in the autonomous driving vehicle includes at least a steering gear 110, a gateway 120, a steering wheel (not shown in the figure), a heater 130, a central control screen 140 and a body controller 150.

[0045] The steering gear 110 includes at least a steering motor and a temperature sensor. The steering motor is used to drive the autonomous driving vehicle to steer under the drive of a large current, and the temperature sensor is used to collect the temperature value of the steering motor.

[0046] The gateway 120 is used to forward data between the steering gear 110, the heater 130, the central control screen 140, and the body controller 150. The gateway 120 and the heater 130, the central control screen 140, and the body controller 150 are connected via a first controller area network (CAN) bus (i.e. Figure 1The gateway 120 communicates with the diverter 111 via a second CAN bus (i.e. Figure 1 CAN2) communication in .

[0047] The steering wheel is provided with a steering heating area and a hand heating area. The hand heating area is the area where the driver's hands are placed when driving, and is usually located on the left and right sides of the steering wheel. The driver's driving experience can be improved by heating the hand heating area. The steering heating area is the area other than the hand heating area. For example, it can be located below or above the steering wheel, which is not limited in this embodiment. The steering heating area can reflect the temperature value of the steering motor, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature felt in the steering heating area, thereby preparing for manual takeover of the vehicle.

[0048] The heater 130 is used to heat the steering heating area and the hand heating area in the steering wheel.

[0049] The central control screen 140 is used to configure the turning on and off of the steering heating function and the steering wheel heating function.

[0050] The vehicle body controller 150 is used to monitor the heating condition of the steering wheel, determine whether the heater fails according to the monitoring result, and perform fault processing when the heater fails.

[0051] like Figure 2 As shown, it shows a method flow chart of a steering gear temperature monitoring method for an autonomous driving vehicle provided by an embodiment of the present application, and the steering gear temperature monitoring method for an autonomous driving vehicle can be applied to an autonomous driving vehicle. The steering gear temperature monitoring method for an autonomous driving vehicle may include:

[0052] Step 201: The gateway obtains a first temperature value measured by a temperature sensor in a diverter.

[0053] The temperature sensor in the steering gear measures the temperature of the steering motor to obtain a first temperature value; the steering gear sends the first temperature value to the gateway.

[0054] Step 202: The gateway obtains first configuration information of the steering wheel, and determines whether to turn on the steering heating function according to the first configuration information.

[0055] The steering heating function refers to associating the temperature of the steering motor with the temperature of the steering heating area in the steering wheel so that the driver can sense the temperature of the steering motor through the temperature of the steering heating area.

[0056] An operation button for the steering heating function is provided in the autonomous driving vehicle, and the operation button can be a physical button or a virtual button on the screen. When the user clicks the operation button, the gateway can obtain the first configuration information generated according to the click behavior, and determine whether to turn on or off the steering heating function according to the value of the first configuration information. For example, 0 indicates turning on the steering heating function, and 1 indicates turning off the steering heating function. If the value of the first configuration information obtained by the gateway is 0, the steering heating function is determined to be turned on; if the value of the first configuration information obtained by the gateway is 1, the steering heating function is determined to be turned off.

[0057] Step 203: If it is determined to turn on the steering heating function, the gateway calculates a second temperature value according to the first temperature value, and sends the second temperature value to the heater, and the second temperature value is lower than the first temperature value.

[0058] The gateway may directly send the first temperature value to the heater. Alternatively, since the first temperature value is usually high, in order to avoid scalding the driver, the gateway needs to reduce the first temperature value to a second temperature value and send the second temperature value to the heater. Alternatively, the gateway may compare the first temperature value with a temperature threshold, and if the first temperature value is less than or equal to the temperature threshold, send the first temperature value to the heater; if the first temperature value is greater than the temperature threshold, reduce the first temperature value to the second temperature value and send the second temperature value to the heater. There are many algorithms for reducing the first temperature value to the second temperature value, which are not limited in this embodiment.

[0059] In step 204, the heater heats the steering heating area in the steering wheel to a second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

[0060] After receiving the second temperature value, the heater heats the steering heating area in the steering wheel to keep the temperature of the steering heating area at the second temperature value. The driver can place his hand on the steering heating area during driving. If the temperature of the steering heating area is normal, it is determined that the overheating protection will not be activated, and the automatic driving can be used normally; if the temperature of the steering heating area is too high, it is determined that the overheating protection may be activated, and preparations need to be made for manual takeover of the vehicle.

[0061] In this embodiment, the first temperature value of the steering motor changes in real time. Whenever the first temperature value changes, the second temperature value needs to be updated and the steering heating area is heated to the latest second temperature value so that the driver can perceive the temperature change of the steering motor in time, thereby ensuring driving safety.

[0062] To summarize, the steering gear temperature monitoring method for an autonomous driving vehicle provided in an embodiment of the present application, after the gateway obtains the first temperature value measured by the temperature sensor in the steering gear, calculates the second temperature value based on the first temperature value, and sends the second temperature value to the heater, and the heater heats the steering heating area in the steering wheel to the second temperature value. In this way, the driver can judge whether to exit the autonomous driving due to the activation of the overheating protection function based on the temperature of the steering heating area, so that manual takeover can be carried out in time when exiting the autonomous driving, avoiding traffic accidents and improving driving safety.

[0063] like Figure 3 As shown, it shows a flow chart of a steering gear temperature monitoring method for an autonomous driving vehicle provided by an embodiment of the present application, and the steering gear temperature monitoring method for an autonomous driving vehicle can be applied to an autonomous driving vehicle. The steering gear temperature monitoring method for an autonomous driving vehicle may include:

[0064] Step 301: The steering device obtains a first temperature value measured by a temperature sensor, and sends the first temperature value to a gateway via a second CAN bus.

[0065] The temperature sensor in the steering gear measures the temperature of the steering motor to obtain a first temperature value; the steering gear sends the first temperature value to the gateway through the second CAN bus.

[0066] Step 302: The gateway receives a first temperature value through a second CAN.

[0067] The redirector sends the first temperature value to the second CAN bus, and the gateway can obtain the first temperature value from the second CAN bus.

[0068] Step 303, the central control screen receives the driver's operation to turn on the steering heating function item, generates first configuration information for indicating turning on the steering heating function according to the turning on operation, and sends the first configuration information to the gateway through the first CAN bus.

[0069] The steering heating function refers to associating the temperature of the steering motor with the temperature of the steering heating area in the steering wheel so that the driver can sense the temperature of the steering motor through the temperature of the steering heating area.

[0070] An operating button for the steering heating function is provided in the autonomous driving vehicle, and the operating button can be a physical button or a virtual button on the screen.

[0071] Taking the steering heating function item on the central control screen as an example, when the user clicks on the steering heating function item, the central control screen can generate first configuration information with different values ​​according to the clicking behavior, so that the gateway can determine whether to turn on or off the steering heating function according to the first configuration information.

[0072] For example, 0 represents turning on the steering heating function, and 1 represents turning off the steering heating function. When the driver triggers the turning on operation of the steering heating function, the central control screen generates first configuration information with a value of 0, and sends the first configuration information to the gateway through the first CAN bus.

[0073] Step 304: The gateway receives first configuration information through the first CAN bus, and determines whether to enable the steering heating function according to the first configuration information.

[0074] Among them, the central control screen sends the first configuration information to the first CAN bus, and the gateway can obtain the first configuration information from the first CAN bus.

[0075] If the value of the first configuration information obtained by the gateway is 0, it is determined that the steering heating function is turned on.

[0076] Step 305: If it is determined to turn on the steering heating function, the gateway calculates a second temperature value according to the first temperature value, and sends the second temperature value to the heater, and the second temperature value is lower than the first temperature value.

[0077] The gateway may directly send the first temperature value to the heater. Alternatively, since the first temperature value is usually high, in order to avoid scalding the driver, the gateway needs to reduce the first temperature value to a second temperature value and send the second temperature value to the heater. Alternatively, the gateway may compare the first temperature value with a temperature threshold, and if the first temperature value is less than or equal to the temperature threshold, send the first temperature value to the heater; if the first temperature value is greater than the temperature threshold, reduce the first temperature value to the second temperature value and send the second temperature value to the heater.

[0078] Specifically, the gateway calculates the second temperature value according to the first temperature value, which may include: the gateway obtains a temperature mapping table, wherein the temperature mapping table includes a mapping relationship between the first temperature value and the second temperature value; and the gateway searches the temperature mapping table for the second temperature value corresponding to the first temperature value.

[0079] In step 306, the heater heats the steering heating area in the steering wheel to a second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

[0080] The gateway sends the second temperature value to the first CAN bus, and the heater can obtain the second temperature value from the first CAN bus.

[0081] After obtaining the second temperature value, the heater heats the steering heating area in the steering wheel to keep the temperature of the steering heating area at the second temperature value. The driver can place his hand on the steering heating area during driving. If the temperature of the steering heating area is normal, it is determined that the overheating protection will not be activated, and the automatic driving can be used normally; if the temperature of the steering heating area is too high, it is determined that the overheating protection may be activated, and preparations need to be made for manual takeover of the vehicle.

[0082] In this embodiment, the first temperature value of the steering motor changes in real time. Whenever the first temperature value changes, the second temperature value needs to be updated and the steering heating area is heated to the latest second temperature value so that the driver can perceive the temperature change of the steering motor in time, thereby ensuring driving safety.

[0083] In order to determine whether the heater fails, the heating condition of the steering wheel can be monitored by the body controller in the autonomous driving vehicle. Specifically, the body controller obtains the second temperature value; the body controller obtains the third temperature value periodically sent by the heater; the body controller determines whether the heater fails based on the third temperature value and the second temperature value. Among them, the gateway sends the second temperature value to the second CAN bus, and the body controller can obtain the second temperature value from the second CAN bus. The heater sends the third temperature value to the second CAN bus, and the body controller can obtain the third temperature value from the second CAN bus.

[0084] When determining whether the heater fails, the body controller detects whether the third temperature value received after a predetermined time reaches the second temperature value; if the third temperature value received after the predetermined time does not reach the second temperature value, the body controller determines that the heater fails.

[0085] For example, if the preset time is 5 seconds, the body controller determines whether the steering heating area reaches the second temperature value within 5 seconds. If it reaches the second temperature value within 5 seconds, it is determined that the heater is not faulty; if it has not reached the second temperature value within 5 seconds, it is determined that the heater is faulty and fault handling is required.

[0086] If it is determined that the heater is faulty, the body controller controls the heater to restart. After restarting the heater, the body controller needs to continue to monitor the heating of the steering wheel. If it is determined that the heater is still faulty, it needs to report the fault information to the autonomous driving vehicle. If it is determined that the heater has restored the heating function, it does not need to report the fault information to the autonomous driving vehicle and continues to monitor the heating of the steering wheel.

[0087] Optionally, a steering wheel heating function item is also provided on the central control screen, and the driver can also turn on or off the steering wheel heating function through the steering wheel heating function item. When the user clicks the steering wheel heating function item, the central control screen can generate second configuration information with different values ​​according to the click behavior, so that the gateway determines whether to turn on or off the steering wheel heating function according to the second configuration information.

[0088] For example, 2 indicates turning on the steering wheel heating function, and 3 indicates turning off the steering wheel heating function. When the driver triggers the steering wheel heating function, the central control screen generates a second configuration message with a value of 2, and sends the second configuration message to the gateway through the first CAN bus. That is, the central control screen receives the driver's turning-on operation on the steering wheel heating function item, generates the second configuration message for indicating turning on the steering wheel heating function according to the turning-on operation, and sends the second configuration message to the heater through the first CAN bus. Correspondingly, the heater receives the second configuration message through the first CAN bus, and heats the hand heating area in the steering wheel according to the second configuration message. The hand heating area is different from the steering heating area.

[0089] To summarize, the steering gear temperature monitoring method for an autonomous driving vehicle provided in an embodiment of the present application, after the gateway obtains the first temperature value measured by the temperature sensor in the steering gear, calculates the second temperature value based on the first temperature value, and sends the second temperature value to the heater, and the heater heats the steering heating area in the steering wheel to the second temperature value. In this way, the driver can judge whether to exit the autonomous driving due to the activation of the overheating protection function based on the temperature of the steering heating area, so that manual takeover can be carried out in time when exiting the autonomous driving, avoiding traffic accidents and improving driving safety.

[0090] like Figure 1 As shown, it shows a structural block diagram of a steering gear temperature monitoring system for an autonomous driving vehicle provided by an embodiment of the present application, and the steering gear temperature monitoring system for an autonomous driving vehicle can be applied to an autonomous driving vehicle. The steering gear temperature monitoring system for an autonomous driving vehicle may include a steering gear 110, a gateway 120, a steering wheel and a heater 130, and a steering heating area is provided in the steering wheel;

[0091] The gateway 120 is used to obtain a first temperature value periodically measured by a temperature sensor in the diverter 110;

[0092] The gateway 120 is further configured to obtain first configuration information of the steering wheel, and determine whether to enable the steering heating function according to the first configuration information;

[0093] If it is determined to turn on the steering heating function, the gateway 120 is further used to calculate a second temperature value according to the first temperature value, and send the second temperature value to the heater 130, where the second temperature value is lower than the first temperature value;

[0094] The heater 130 is used to heat the steering heating area in the steering wheel to a second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

[0095] In an optional embodiment, the autonomous driving vehicle further includes a central control screen 140, which is used to receive a driver's operation of turning on the steering heating function item, generate first configuration information for indicating turning on the steering heating function according to the turning on operation, and send the first configuration information to the gateway 120 through the first CAN bus;

[0096] The gateway 120 is further configured to receive first configuration information through the first CAN bus.

[0097] In an optional embodiment, the central control screen 140 is further used to receive a driver's operation of turning on the steering wheel heating function item, generate second configuration information for instructing to turn on the steering wheel heating function according to the turning on operation, and send the second configuration information to the heater 130 through the first CAN bus;

[0098] The heater 130 is further used to receive second configuration information through the first CAN bus, and heat the hand heating area in the steering wheel according to the second configuration information, where the hand heating area is different from the steering heating area.

[0099] In an optional embodiment, the redirector 110 is further used to obtain a first temperature value measured by the temperature sensor, and send the first temperature value to the gateway 120 via the second CAN bus;

[0100] The gateway 120 is further configured to receive the first temperature value through the second CAN.

[0101] In an optional embodiment, the autonomous driving vehicle further includes a body controller 150, and the body controller 150 is further configured to:

[0102] obtaining a second temperature value;

[0103] Acquire a third temperature value periodically sent by the heater 130;

[0104] It is determined whether the heater 130 fails according to the third temperature value and the second temperature value.

[0105] In an optional embodiment, the vehicle body controller 150 is further configured to:

[0106] detecting whether the third temperature value received after a predetermined period of time reaches the second temperature value;

[0107] If the third temperature value received after the predetermined time period does not reach the second temperature value, it is determined that the heater 130 has failed.

[0108] In an optional embodiment, the vehicle body controller 150 is further configured to:

[0109] If it is determined that the heater 130 fails, the heater 130 is controlled to restart.

[0110] In an optional embodiment, the gateway 120 is further configured to:

[0111] Acquire a temperature mapping table, where the temperature mapping table includes a mapping relationship between a first temperature value and a second temperature value;

[0112] A second temperature value corresponding to the first temperature value is searched in the temperature mapping table.

[0113] To summarize, the steering gear temperature monitoring system for an autonomous driving vehicle provided in an embodiment of the present application calculates a second temperature value based on the first temperature value after the gateway obtains the first temperature value measured by the temperature sensor in the steering gear, and sends the second temperature value to the heater. The heater heats the steering heating area in the steering wheel to the second temperature value. In this way, the driver can judge whether to exit the autonomous driving due to the activation of the overheating protection function based on the temperature of the steering heating area, so that manual takeover can be taken in time when exiting the autonomous driving, thereby avoiding traffic accidents and improving driving safety.

[0114] An embodiment of the present application provides an autonomous driving vehicle, which includes a steering gear temperature monitoring system of any of the above-mentioned autonomous driving vehicles.

[0115] It should be noted that: the steering gear temperature monitoring system for an autonomous driving vehicle provided in the above embodiment only uses the division of the above functional modules as an example when monitoring the steering gear temperature of an autonomous driving vehicle. In actual applications, the above functional distribution can be completed by different functional modules as needed, that is, the internal structure of the steering gear temperature monitoring system for an autonomous driving vehicle is divided into different functional modules to complete all or part of the functions described above. In addition, the steering gear temperature monitoring system for an autonomous driving vehicle provided in the above embodiment and the steering gear temperature monitoring method embodiment for an autonomous driving vehicle belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0116] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0117] The above description is not intended to limit the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A method for monitoring the temperature of a steering gear of an autonomous driving vehicle, characterized in that: Used in a steering gear temperature monitoring system, the steering gear temperature monitoring system includes a steering gear, a gateway, a steering wheel and a heater, the steering wheel is provided with a steering heating area, the method includes: The gateway obtains a first temperature value measured by a temperature sensor in the diverter; The gateway obtains first configuration information of the steering wheel, and determines whether to turn on the steering heating function according to the first configuration information; If it is determined to turn on the steering heating function, the gateway calculates a second temperature value according to the first temperature value, and sends the second temperature value to the heater, wherein the second temperature value is lower than the first temperature value; The heater heats the steering heating area in the steering wheel to the second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

2. The steering gear temperature monitoring method of an automatic driving vehicle according to claim 1, characterized in that: The autonomous driving vehicle further includes a central control screen, and the method further includes: The central control screen receives a driver's operation of turning on the steering heating function item, generates first configuration information for instructing to turn on the steering heating function according to the turning on operation, and sends the first configuration information to the gateway via a first controller area network CAN bus; The gateway obtains first configuration information of the steering wheel, including: the gateway receives the first configuration information through the first CAN bus.

3. The steering gear temperature monitoring method of an automatic driving vehicle according to claim 2, characterized in that: The method further comprises: The central control screen receives a driver's operation of turning on a steering wheel heating function item, generates second configuration information for instructing to turn on the steering wheel heating function according to the turning on operation, and sends the second configuration information to the heater via the first CAN bus; The heater receives the second configuration information through the first CAN bus, and heats a hand heating area in the steering wheel according to the second configuration information, where the hand heating area is different from the steering heating area.

4. The steering gear temperature monitoring method of an automatic driving vehicle according to claim 1, characterized in that: The method further includes: the steering device acquires a first temperature value measured by the temperature sensor, and sends the first temperature value to the gateway via a second CAN bus; The gateway obtains a first temperature value measured by a temperature sensor in the steering gear, including: the gateway receives the first temperature value through the second CAN.

5. The method for monitoring the temperature of a steering gear of an automatic driving vehicle according to claim 1, characterized in that: The autonomous driving vehicle further includes a body controller, and the method further includes: The vehicle body controller acquires the second temperature value; The vehicle body controller acquires a third temperature value periodically sent by the heater; The vehicle body controller determines whether the heater fails according to the third temperature value and the second temperature value.

6. The method for monitoring the temperature of the steering gear of an automatic driving vehicle according to claim 5, characterized in that: The vehicle body controller determines whether the heater fails according to the third temperature value and the second temperature value, including: The vehicle body controller detects whether the third temperature value received after a predetermined time reaches the second temperature value; If the third temperature value received after a predetermined period of time does not reach the second temperature value, the vehicle body controller determines that the heater has failed.

7. The method for monitoring the temperature of a steering gear of an automatic driving vehicle according to claim 5, characterized in that: The method further comprises: If it is determined that the heater fails, the body controller controls the heater to restart.

8. The method for monitoring the temperature of a steering gear of an automatic driving vehicle according to any one of claims 1 to 7, characterized in that: The gateway calculates a second temperature value according to the first temperature value, including: The gateway obtains a temperature mapping table, wherein the temperature mapping table includes a mapping relationship between a first temperature value and a second temperature value; The gateway searches the temperature mapping table for a second temperature value corresponding to the first temperature value.

9. A steering gear temperature monitoring system for an autonomous driving vehicle, characterized in that: The system comprises a steering gear, a gateway, a steering wheel and a heater, wherein a steering heating area is provided in the steering wheel; The gateway is used to obtain a first temperature value periodically measured by a temperature sensor in the diverter; The gateway is further used to obtain first configuration information of the steering wheel, and determine whether to turn on the steering heating function according to the first configuration information; If it is determined to turn on the steering heating function, the gateway is further used to calculate a second temperature value according to the first temperature value, and send the second temperature value to the heater, wherein the second temperature value is lower than the first temperature value; The heater is used to heat the steering heating area in the steering wheel to the second temperature value, so that the driver can judge whether to activate the overheating protection function and exit the automatic driving according to the temperature of the steering heating area.

10. An autonomous driving vehicle, characterized in that: The autonomous driving vehicle includes: the steering gear temperature monitoring system of the autonomous driving vehicle as described in claim 9.

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