Self-adaptive vehicle curve auxiliary control method and device, computer equipment and storage medium

Abstract

The invention provides a self-adaptive vehicle curve auxiliary control method and device, computer equipment and a storage medium. The method comprises the steps that S10, the type of a current curveis recognized according to signals of a sensor of a vehicle, and the lateral impact degree of the current vehicle is obtained according to the lateral acceleration corresponding to the type of the curve; S11, calculation is performed according to the lateral impact degree to obtain an expected longitudinal acceleration; S12, according to the expected longitudinal acceleration and the current actual longitudinal acceleration, an activation type of current curve auxiliary control is determined; and S13, according to the activation type, the engine torque or / and the ESC braking strength is / are cooperatively controlled, and expected longitudinal control over the curve of the vehicle is achieved. Certain vehicle longitudinal auxiliary control can be carried out on the premise that a driver doesnot perceive, so that the dynamic performance of the vehicle during turning is improved.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, in particular to an adaptive vehicle curve assist control method, device, computer equipment and storage medium. Background technique [0002] In the handling of the vehicle, the performance of the curve is very important, and it is closely related to the handling, comfort and safety of the vehicle. At present, the body electronic stability system (ESC) equipped on passenger cars only works when the vehicle is critically unstable or already unstable, and cannot improve the performance of the vehicle in most cornering conditions. It is very difficult to achieve better performance through chassis tuning alone when most vehicles have not yet used active suspension. Therefore, it is necessary to use assisted driving technology to improve the handling and stability of the vehicle when cornering. Honda's AHA and Mazda's GVC is a related technology. Through the control of driving and b...

AI Technical Summary

Problems solved by technology

It is suitable for use in the ACC system, which needs to know the curve information in advance, and the environmental perception is more complicated; and it is a strong intervention scheme, which is easy to conflict with the driver's driving intention

[0004] In other vehicle curve control technologies, it is only suitable for certain types of curves, such as U-turn (U-shaped bend) and L-turn (right-angle turn), which have higher accuracy, but in snaking , single line shifting and other working conditions, the error is relatively large;

[0005] In other vehicle cornering control technologies, there is still a situation that the steering wheel will be decelerated when the steering wheel is slightly adjusted, which will make the control too sensitive and the user is not good to use

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