Method and device for assisting vehicle driving
A vehicle driving and vehicle technology, applied in vehicle components, transportation and packaging, steering mechanisms, etc., can solve the problems of LKA function and rear wheel steering function conflicts, LKA and rear wheel steering conflicts, etc., to improve driving safety, avoid the effect of conflict
Pending Publication Date: 2021-11-02
恒大恒驰新能源汽车研究院(上海)有限公司
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Problems solved by technology
After the LKA function is activated, if the rear wheel active steering function is activated at the same time, it may cause conflicts between the LKA function and the rear wheel steering function based on the front wheel steering control
[0005] How to avoid conflicts caused by both LKA and rear wheel steering based on front wheel steering control is the technical problem to be solved in this application
Method used
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. The drawing numbers in this application are only used to distinguish each step in the solution, and are not used to limit the execution order of each step. The specific execution order is subject to the description in the specification.
[0031] In order to solve the problems existing in the prior art, the embodiment of the present application provides a method for assisting the driving of a vehicle, and the execution subject may be a chassis domain contr...
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The invention discloses a method and a device for assisting the vehicle driving, which are used for solving the problem of conflict caused by the fact that LKA and rear wheel steering are both based on front wheel steering control. According to the scheme, the method comprises the steps of receiving a lane keeping assistance (LKA) request triggered by an advanced driving assistance system (ADAS) of a vehicle; obtaining a rear wheel steering angle and a rear wheel steering state of the vehicle; if the rear wheel steering state represents that the rear wheel steering angle of the vehicle is fixed, generating an LKA function execution instruction according to the rear wheel steering angle, wherein the LKA function execution instruction is used for instructing the ADAS to control front wheels of the vehicle to execute steering; and sending the LKA function execution instruction to the ADAS to instruct the ADAS to control the vehicle to run. According to the scheme, before the LKA function is executed, the steering angle and the steering state of the rear wheel are obtained firstly, the ADAS is instructed to execute the needed function under the condition that it is determined that the steering angle of the rear wheel is fixed, conflict caused by the fact that vehicle LKA and rear wheel steering are both based on front wheel steering control is effectively avoided, and therefore the vehicle driving safety is improved.
Description
technical field [0001] The invention relates to the field of vehicle control, in particular to a method and device for assisting vehicle running. Background technique [0002] In the field of vehicle control, vehicle assisted steering can be realized through rear wheel electronically controlled steering technology. There are many types of assisted driving functions, some of which are to control the direction of the vehicle by controlling the steering of the front wheels, such as Lane Keeping Assist (LKA), while others are to control the direction of the vehicle by controlling the steering of the rear wheels Yes, such as the rear wheel active steering function. [0003] In practical applications, the assisted driving function may be triggered manually by the driver, or it may be automatically triggered under special working conditions. If the assisted driving function controlling the front wheels is triggered at the same time as the assisted driving function controlling the...
Claims
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Login to View More IPC IPC(8): B60W30/12B62D15/02
CPCB60W30/12B62D15/025
Inventor 张飞翔庄英武刘忠侦董智星左琨
Owner 恒大恒驰新能源汽车研究院(上海)有限公司