CN113771862A

CN113771862A - Steering wheel light bar control method, light bar control device and vehicle

Info

Publication number: CN113771862A
Application number: CN202111133516.XA
Authority: CN
Inventors: 王宇飞; 汪长军; 王鹏翔; 陆永; 其力格尔; 聂耸; 龚洁
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2021-12-10

Abstract

The invention provides a steering wheel light bar control method, a steering wheel light bar control device and a vehicle, and belongs to the technical field of intelligent driving. The steering wheel light bar control method comprises the following steps: collecting hand state information, road running environment information and vehicle running state information; obtaining a vehicle driving state confirmation result according to a preset safety strategy based on the hand state information, the road driving environment information and the vehicle driving state information; and correspondingly controlling the color transformation of the light bar of the steering wheel according to the vehicle driving state confirmation result. According to the control method closely coupled with the vehicle active safety strategy, the functions of the steering wheel light bar are richer, the control requirements of various active safety strategies can be met, and the driving safety of a driver is improved.

Description

Steering wheel light bar control method, light bar control device and vehicle

Technical Field

The invention relates to the technical field of intelligent driving, in particular to a steering wheel light bar control method, a light bar control device and a vehicle.

Background

At present, with the development of automobiles towards electric and intelligent technologies, the application of intelligent driving technologies in the automobile field is increasing. Besides the traditional functions of direction control and steering control, more and more man-machine interaction input functions of the steering wheel of modern passenger cars are required to be completed on the steering wheel. The active safety functions related to the current intelligent automobile comprise lane departure early warning, front collision early warning, doubling assistance, lane keeping assistance, fatigue driving prompting and the like, a light bar on a steering wheel is closely interacted with the active safety functions, various active safety strategies can be carried out by utilizing color change of the light bar, and safety early warning is provided for a driver. However, in the prior art, the vehicle is usually warned based on the steering wheel angle state, the active safety coupling degree of the light bar and the vehicle is low, and the light bar and the safety control strategy of the whole vehicle are not interacted, so that the intelligent degree is low. Therefore, it is desirable to provide a steering wheel light bar control method, a light bar control device and a vehicle.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a steering wheel light bar control method, a light bar control device and a vehicle, so as to solve the problem that the degree of intelligence of the vehicle is low and a driver cannot intuitively obtain safety warning information from the change of the light bar due to low active safety coupling between the steering wheel light bar and the vehicle in the prior art.

In order to achieve the above and other related objects, the present invention provides a steering wheel light bar control method, including the following steps:

collecting hand state information, road running environment information and vehicle running state information;

obtaining a vehicle driving state confirmation result according to a preset safety strategy based on the human hand state information, the road driving environment information and the vehicle driving state information;

and correspondingly controlling the color transformation of the light bar of the steering wheel according to the vehicle driving state confirmation result.

In an embodiment of the present invention, the road running environment information is collected using a radar and a camera.

In one embodiment of the present invention, the vehicle running state information includes vehicle motion information and driving mode information.

In an embodiment of the invention, the driving mode information includes automatic driving and manual driving, and the vehicle motion information includes one or more of speed, acceleration, angular velocity, and angular acceleration.

In an embodiment of the present invention, the correspondingly controlling color transformation of the steering wheel light bar according to the vehicle driving status confirmation result includes the following processes:

if the vehicle driving state confirmation result meets the preset condition of automatic driving, changing the rim light bar into a first color;

if the confirmation result does not meet the preset condition of automatic driving, judging whether the hands of the driver are separated from the steering wheel or not according to the confirmation result, and if so, changing the rim light bar into a second color;

if the hands of the driver do not separate from the steering wheel, judging whether collision early warning exists in the front or not according to the confirmation result, if so, changing the wheel rim lamp strip into a second color, and simultaneously changing the multifunctional switch hidden lamp strip into a second color;

if no collision early warning exists in the front, judging whether the vehicle deviates from the lane according to the confirmation result, if so, changing the rim light bar on the side of the vehicle deviating from the lane into a third color, and simultaneously changing the multifunctional switch hidden light bar on the side of the vehicle deviating from the lane into a third color;

and if the vehicle does not deviate from the lane, judging whether the vehicle is allowed to turn during the parallel running according to the confirmation result, and if so, keeping the wheel rim lamp strip and the multifunctional switch hidden lamp strip in an off state.

In an embodiment of the invention, if the vehicle is not allowed to turn during the parallel running, the rim light bar on the side to be turned of the vehicle is changed into the second color, and the hidden light bar of the multifunctional switch on the side to be turned of the vehicle is changed into the second color.

In an embodiment of the present invention, a light bar control device is further provided, which includes a display host, an active safety control module, and a multifunctional switch of a steering wheel.

The active safety control module is connected with the display host, and transmits a corresponding steering wheel light bar conversion instruction to the display host based on information of the vehicle-mounted sensor;

the multifunctional switch of the steering wheel is connected with the display host through a vehicle-mounted network, and after receiving a lamp strip color changing instruction of the display host, the multifunctional switch of the steering wheel controls the color changing of a lamp strip of the steering wheel.

In one embodiment of the invention, the vehicle-mounted sensor comprises a vehicle-mounted radar, a forward-looking camera and an inertial measurement unit.

In an embodiment of the present invention, the active safety control module is connected to the vehicle radar through a CAN bus.

In an embodiment of the present invention, a vehicle is further provided, where a light bar assembly is installed on a steering wheel of the vehicle, and the light bar assembly performs color conversion by using any one of the steering wheel light bar control methods described above.

The invention provides a steering wheel light bar control method, a steering wheel light bar control device and a vehicle, which solve the problem that in the prior art, a driver cannot intuitively acquire vehicle safety early warning information from light bar change due to low active safety function coupling degree of a steering wheel light bar and the whole vehicle. The active safety controller obtains a vehicle driving state confirmation result according to a preset safety strategy after data fusion and logic processing according to road driving environment information, vehicle driving state information and hand state information collected by the sensor, and sends the result to the multifunctional switch controller of the steering wheel. After the multifunctional switch of the steering wheel receives the information, the light bars on the rim of the steering wheel and the hidden light bars contained in the multifunctional switch of the steering wheel can be controlled to respond to the information to generate corresponding light actions according to the information requirements. Thereby providing the driver with the function of driving safety early warning and effectively ensuring the driving safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic flow chart illustrating a steering wheel light bar control method according to an embodiment of the present invention;

FIG. 2 is a schematic view of a multifunctional switch and a hidden light bar on a steering wheel according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the area I in FIG. 2;

FIG. 4 is a flowchart illustrating the step S3 according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a topology of a light bar control device according to an embodiment of the invention.

Element number description:

100. a steering wheel; 101. 2 o' clock direction light bar; 102. a 10 o' clock direction light bar; 103. a multifunctional switch; 104. a hidden light bar; 105. a hands-off detection sensor; 106. a multi-function switch controller; 200. a display host; 300. an active safety control module; 400. a FLEXRAY bus; 500. a CAN bus; 600. a radar sensor; 601. a left front side radar; 602. a right front side radar; 603. a left rear side radar; 604. a right rear side radar; 605. a forward looking millimeter wave radar; 700. hard wires; 800. a combination switch; 801. a clock spring; 900. a forward looking camera; 901. an inertial measurement unit.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and the description of the present invention, and any methods, apparatuses, and materials similar or equivalent to those described in the examples of the present invention may be used to practice the present invention.

Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a steering wheel light bar control method according to an embodiment of the present invention. The invention provides a control method of a light bar of a steering wheel.A vehicle-mounted sensor collects road running environment information, vehicle running state information and hand state information in the running process of a vehicle, an active safety controller obtains a vehicle driving state confirmation result according to a preset safety strategy after carrying out data fusion and logic processing on the information collected by the vehicle-mounted sensor, and sends the result to a multifunctional switch controller of the steering wheel. After receiving the information, the multifunctional switch controller of the steering wheel can control the light bars on the rim of the steering wheel and the hidden light bars contained in the multifunctional switch of the steering wheel to respond to the information according to the information requirements and generate corresponding light actions. Therefore, visual early warning is provided for the driving safety of the driver, and the driving safety is effectively ensured.

Referring to fig. 1 and 5, fig. 5 is a schematic diagram illustrating a topology structure of a light bar control device according to an embodiment of the invention. In an embodiment of the present invention, a method for controlling a steering wheel light bar is provided, which includes the following steps:

s1, collecting hand state information, road driving environment information and vehicle driving state information;

s2, obtaining a vehicle driving state confirmation result according to a preset safety strategy based on the hand state information, the road driving environment information and the vehicle driving state information;

and S3, correspondingly controlling the color change of the rim light bar of the steering wheel according to the vehicle driving state confirmation result.

Various information during the driving of the vehicle is collected by onboard sensors such as the radar sensor 600, the forward looking camera 900, the hands-off detection sensor 105, and the inertial measurement unit 901, and the like, and transmitted to the active safety control module 300. The hands-off detection sensor 105 transmits the state information of the steering wheel held by the driver to the display host 200, the display host 200 sends the set driving mode state information to the active safety control module 300, and the active safety control module 300 analyzes and processes the information and judges the driving state of the vehicle according to a preset safety strategy. And correspondingly adjust the change of the light bars in the steering wheel 100 according to the driving state information.

Referring to fig. 1 to 3 and fig. 5, fig. 2 is a schematic structural view of a multifunctional switch and a hidden light bar on a steering wheel according to an embodiment of the present invention, and fig. 3 is a partially enlarged view of an area I in fig. 2. During the driving of the vehicle, the multi-function switch controller 106 on the steering wheel 100 receives the state information of the hand-held steering wheel 100 collected by the Hands-Off Detection sensor 105 (HOD) on the rim of the steering wheel 100 and the operation information generated by the multi-function switch buttons. In addition, the vehicle-mounted forward-looking camera 900 and the radar sensor 600 collect road driving environment information, and the Inertial Measurement Unit 901 (IMU) collects vehicle motion information, which is transmitted to the active safety control module 300 for analysis and processing. The active safety control module 300 logically processes the received information according to a preset safety policy algorithm, outputs a vehicle driving state confirmation result, and transmits the vehicle driving state confirmation result to the multifunction switch controller 106 through the display host 200. The multifunctional switch controller 106 controls the light bars on the rim and the hidden light bars 104 of the multifunctional switch to respectively generate corresponding light effects according to the preset signal coding type after receiving the vehicle driving state confirmation result information, so as to achieve the purpose of transmitting driving safety early warning information to the driver in real time.

In one embodiment of the present invention, the vehicle running state information includes vehicle motion information and driving mode information, the driving mode information includes a manual driving mode and an automatic driving mode, and the vehicle motion information includes at least one or more of speed, acceleration, angular velocity, and angular acceleration.

Referring to fig. 5, in an embodiment of the present invention, the radar sensor 600 and the camera are used to collect road driving environment information. Specifically, the road condition information may be detected in real time using the radar sensor 600 mounted on the vehicle body. For example, the environment around the vehicle body can be detected in all directions in real time by a plurality of radar devices such as a left front radar 601, a right front radar 602, a left rear radar 603, a right rear radar 604, and a forward-looking millimeter wave radar 605 of the vehicle. The vehicle-mounted forward-looking camera 900 can detect information such as the information of the road condition ahead of the vehicle and whether a vehicle or a pedestrian is suddenly merged in the driving process of the vehicle, and transmit the information to the active safety control module 300 for analysis and processing.

Since the inertial measurement unit 901 has an ultra-high confidence level and a strong anti-interference capability, and can provide high-precision positioning without external dependence, in an embodiment of the present invention, the inertial measurement unit 901 is used to collect vehicle motion information. Even if extreme situations such as a vehicle position being unable to be located due to signal loss of a Global Positioning System (GPS) caused by shielding occur, the inertial measurement unit 901 can still accurately locate the position of the vehicle, and the high-precision location performance of the vehicle is greatly improved.

Please refer to fig. 2 to 4 and fig. 5. Fig. 4 is a flowchart illustrating the step S3 according to an embodiment of the present invention. In an embodiment of the present invention, step S3 includes the following processes:

and S31, if the vehicle driving state confirmation result meets the preset condition of automatic driving, the light bar is changed into a first color.

If the active safety control module 300 analyzes the information transmitted by the radar sensor 600, the forward looking camera 900 and the inertial measurement unit 901, it determines that the current road condition, the vehicle speed and the like meet the preset conditions for automatic driving. The active safety control module 300 sends a corresponding light conversion command to the multi-function switch through the display host 200, and after receiving the command, the multi-function switch controls the light bars 101 and 102 located in the 2 o 'clock direction and the 10 o' clock direction of the rim to be lit to a first color, which is green in an embodiment of the present invention.

It should be noted that, in the present invention, there may be two light bars, including a 2 o 'clock direction light bar 101 and a 10 o' clock direction light bar 102, which are mounted on the rim of the steering wheel 100. Of course, it is understood that the positions of the light bars are not limited to the positions described in the present invention, and those skilled in the art can adaptively change the positions and the number of the light bars according to the convenience observed by the driver, which is not described herein.

And S32, if the confirmation result does not meet the preset condition of automatic driving, judging whether the hands of the driver are separated from the steering wheel 100 according to the confirmation result, and if so, changing the light bar into a second color.

If the active safety control module 300 determines that the current vehicle is in a non-autonomous driving state (i.e., a manual driving state), the preset condition for autonomous driving is not satisfied. The display host 200 transmits the hand state information collected by the hands-off detection sensor 105 to the active safety control module 300, and the active safety control module 300 determines whether the driver's hand is off the steering wheel 100 at this time. If the driver's hand is detached from the steering wheel 100, the active safety control module 300 sends a light bar change command to the multi-function switch controller 106 through the display host 200, and the 2 o ' clock direction light bars 101 and the 10 o ' clock direction light bars 102 on the rim change to the second color. In an embodiment of the present invention, the second color is red. Further, to enhance the indication, the 2 o 'clock direction light bars 101 and the 10 o' clock direction light bars 102 may be changed to red and continuously flash. The driver is informed with this striking red signal that the steering wheel 100 must be immediately taken over. The traffic accident occurrence probability is effectively reduced by visually early warning the driver.

And S33, if the driver does not leave the steering wheel 100, judging whether a collision early warning exists in the front or not according to the confirmation result, if so, changing the light bar into a second color, and simultaneously changing the multifunctional switch hidden light bar 104 into the second color.

If the active safety control module 300 determines that the driver's hand is not separated from the steering wheel 100, various information such as the distance, direction, and relative speed between the vehicle and the preceding vehicle are comprehensively analyzed according to the signal detected by the radar sensor 600. If the active safety control module 300 determines that there is a collision warning at this time, the multi-function switch controller 106 will light the hidden light bars 104 located on the rim 2 o 'clock direction light bars 101 and 10 o' clock direction light bars 102 and the multi-function switch 103 at the same time under the instruction of the active safety control module 300, and both are in the second color. Preferably, the 2 o 'clock direction light bars 101, the 10 o' clock direction light bars 102 and the hidden light bars 104 are all changed to be in a red and flickering state. To remind the driver to pay attention to take over the steering wheel 100 and prevent the driver from falling off the hand, and to remind the driver that a collision may occur in front, so as to prepare for controlling the vehicle speed or braking.

It should be noted that, in the present invention, the hidden light bar 104 is hidden and invisible under the panel of the multifunctional switch 103 when the light bar is not bright; only after the light bar is lit will it become visible. When safety early warning information needs to be sent to a driver, the driver can be visually warned through color transformation and flicker degree.

And S34, if no collision warning exists in the front, judging whether the vehicle deviates from the lane according to the confirmation result, if so, changing the light bar on the side where the vehicle deviates to a third color, and simultaneously changing the hidden light bar 104 of the multifunctional switch 103 on the side where the vehicle deviates to the third color.

If the active safety control module 300 determines that there is no collision warning ahead, it will determine whether the vehicle deviates from the lane according to the information collected by the forward-looking camera 900 and the inertia measurement unit 901. If the vehicle has deviated from the driving lane, the active safety control module 300 sends a command to the multi-function switch controller 106, and the multi-function switch controller 106 controls the deviated light bar (the 2 o 'clock direction light bar 101 or the 10 o' clock direction light bar 102 on the rim) and the deviated hidden light bar 104 of the vehicle to change to the third color. In one embodiment of the invention, the third color is yellow which provides a driver with a warning effect. Preferably, the light bars on the side of the vehicle away from the hidden light bar 104 can be changed to yellow and continuously flashing to remind the driver to adjust the steering wheel 100 in time to return the vehicle to the correct lane.

And S35, if the vehicle does not deviate from the lane, judging whether steering is allowed during parallel running according to the confirmation result, and if so, keeping the lamp strip and the hidden lamp strip 104 of the multifunctional switch 103 in an off state.

If the active safety control module 300 judges that the vehicle does not deviate from the lane, whether the steering is safe when the vehicle is running in parallel with other vehicles is judged according to the detection information of the radar sensor 600. After comprehensively analyzing information such as the distance between the vehicle and the side vehicle, the relative speed and the like, if the active safety control module 300 considers that the steering is safe at the moment, the steering is allowed. The active safety control module 300 does not send a command to the display host 200, the multifunction switch controller 106 does not receive any light conversion command, and the 2 o 'clock direction light bars 101 and the 10 o' clock direction light bars 102 and the hidden light bars 104 on the rim of the steering wheel 100 are kept in the off state.

Referring to fig. 3 and 5, in an embodiment of the invention, if the turning is not allowed during the parallel running, the rim light bar on the side to be turned of the vehicle is changed to the second color, and the hidden light bar 104 of the multi-function switch 103 on the side to be turned of the vehicle is changed to the second color. Based on the information detected by the radar, the active safety control module 300 recognizes that there is a situation where another vehicle is approaching on one side of the vehicle and steering is not allowed for safety. At this time, after receiving the instruction from the active safety control module 300, the multi-function switch controller 106 controls the rim of the steering wheel 100 to turn to one side (located on the 2 o 'clock direction light bar 101 or the 10 o' clock direction light bar 102) of the rim to be turned red, and continuously flickers. Meanwhile, the hidden light bar 104 on the side to be steered of the vehicle is lighted to be red and continuously flickers. To remind the driver to pay attention to take over the condition that the steering wheel 100 cannot get out of hand, and to remind the driver to turn to the side where the light flickers, and to pay attention to the environment of the pre-parallel lane.

Referring to fig. 3 and 5, in an embodiment of the present invention, a light bar control device is further provided, which includes a display host 200, an active safety control module 300, and a multi-function switch 103 of a steering wheel 100.

The display host 200 serves as a gateway for information transmission and conversion, and is an information connection hub of the display host 200 and the active safety control module 300 of the multi-function switch 103. Further, it is also possible to display the driving mode selection information of the driver by the key operation on the multi-function switch 103 in the form of an icon on the in-vehicle screen of the display main body 200.

The active safety control module 300 is connected to the display host 200, and the active safety control module 300 transmits a color changing command of the light bar of the corresponding steering wheel 100 to the display host 200 based on information of the vehicle-mounted sensor. The active security control module 300 and the display host 200 are connected via a FLEXRAY (slot) bus 400. In an embodiment of the present invention, the active safety control module 300 is connected to the radar sensors 600 through a CAN (Controller Area Network) bus 500, so as to receive vehicle road environment data collected by the sensors. The radar sensor 600 includes, but is not limited to, a left front radar 601, a right front radar 602, a left rear radar 603, a right rear radar 604, and a forward looking millimeter wave radar 605.

The multifunctional switch 103 of the steering wheel 100 is connected to the display host 200 through a vehicle-mounted network, and the multifunctional switch 103 of the steering wheel 100 controls the light bar of the steering wheel 100 to change after receiving a light bar color changing command of the display host 200. The light bars on the steering wheel 100 include 2 o 'clock direction light bars 101 and 10 o' clock direction light bars 102 on the rim of the steering wheel, and the hands-off detection sensor 105 is connected to the multi-function switch 103 of the steering wheel through a hard wire 700. The multi-function switch controller 106 on the multi-function switch 103 circuit board of the steering wheel 100 is responsible for receiving the information collected by the hands-off detection sensor 105 and sending current information to the light bar to control the LED lights of the light bar to generate various light actions.

In an embodiment of the present invention, the multi-function switch 103 is connected to the display host 200 through the CAN bus 500 via the clock spring 801 of the combination switch 800, and the display host 200 is connected to the active safety control module 300 through the FLEXRAY bus 400. Specifically, the multi-function switch 103 on the steering wheel 100 receives the human hand state information collected by the hands-off detection sensor 105 on the rim of the steering wheel 100 and the operation information generated by the human hand operating the multi-function switch keys. After being processed by the multi-function switch controller 106, the information is transmitted to the display host 200 in a frame format conforming to the CAN protocol, and meanwhile, a relevant indication icon set by the driving mode is displayed on the vehicle-mounted display screen. The display host 200 converts the hand state information and the driving mode result information into a frame format in the FLEXRAY protocol and transmits the frame format to the active safety control module 300.

In an embodiment of the present invention, the active security control module 300 is connected to the forward-looking camera 900 through a FLEXRAY bus 400, and the forward-looking camera 900 is connected to the inertial measurement unit 901 through a CAN bus 500. And further, the visual information fused by the front view camera 900 and the dynamic information of the vehicle itself, such as speed, acceleration, etc., can be received. The active safety control module 300 integrates the information of the sensors and the transmitted information, performs logic processing through a preset logic algorithm, outputs vehicle driving state judgment information, converts the judgment information into light control information of the steering wheel 100, and transmits the light control information to the multi-function switch controller 106 of the steering wheel 100. The multi-function switch controller 106 of the steering wheel 100 controls the light bars to generate different light actions through the related circuits of the multi-function switch 103 according to the received light control command.

In an embodiment of the present invention, a vehicle is further provided, where a steering wheel of the vehicle is provided with a light bar assembly, and the light bar assembly performs color conversion by using any one of the steering wheel light bar control methods described above.

In summary, the present invention collects road running environment information, vehicle running state information, and human hand state information using an on-vehicle sensor during running of a vehicle. And the active safety controller performs data fusion and logic processing on the information collected by the vehicle-mounted sensor, obtains a vehicle driving state confirmation result according to a preset safety strategy, and sends the result to the multifunctional switch controller of the steering wheel. After receiving the information, the multifunctional switch controller of the steering wheel can control the light bars on the rim of the steering wheel and the hidden light bars contained in the multifunctional switch of the steering wheel to respond to the information according to the information requirements and generate corresponding light actions. Therefore, visual early warning is provided for the driving safety of the driver, and the driving safety of the driver is effectively improved. The light bar control method closely coupled with the vehicle active safety strategy can be suitable for the control requirements of various active safety strategies, so that the light bar on the steering wheel and the active safety domain control module on the vehicle-mounted network carry out information interaction, and the light bar can adapt to the control requirements of various active safety strategies. Greatly improves the technological sense of the steering wheel.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A steering wheel light bar control method is characterized by comprising the following processes:

2. The method for controlling the steering wheel light bar according to claim 1, wherein correspondingly controlling the color transformation of the steering wheel light bar according to the vehicle driving state confirmation result comprises the following steps:

3. The method for controlling a steering wheel light bar of claim 2, wherein if steering is not allowed during the parallel running, the rim light bar on the side to be steered of the vehicle is changed to a second color, and the hidden light bar of the multi-function switch on the side to be steered of the vehicle is changed to a second color.

4. The steering wheel light bar control method of claim 1, wherein the vehicle driving state information comprises vehicle motion information and driving mode information.

5. The steering wheel light bar control method of claim 4, wherein the driving mode information comprises an automatic driving mode and a manual driving mode, and the vehicle motion information comprises one or more of speed, acceleration, angular velocity, and angular acceleration.

6. The steering wheel light bar control method of claim 1, wherein the road driving environment information is collected using a radar and a camera.

7. A light bar control device, comprising:

a display host;

the active safety control module is connected with the display host, and transmits a corresponding color changing instruction of a steering wheel light bar to the display host based on the information of the vehicle-mounted sensor;

the multifunctional switch of the steering wheel is connected with the display host through a vehicle-mounted network, and after receiving a lamp strip color changing instruction of the display host, the multifunctional switch of the steering wheel controls the changing of a lamp strip of the steering wheel.

8. The light bar control device of claim 7, wherein the vehicle-mounted sensors comprise a vehicle-mounted radar, a forward-looking camera, and an inertial measurement unit.

9. The light bar control device of claim 7, wherein the active safety control module is connected to the vehicle radar via a CAN bus.

10. A vehicle, characterized in that a light bar assembly is installed on a steering wheel of the vehicle, and the light bar assembly is subjected to color conversion by adopting the steering wheel light bar control method of any one of claims 1 to 6.