Curve optimization control method and system

Abstract

The invention discloses a curve optimization control method and system. The control method comprises the following steps of acquiring transverse movement data of a vehicle; the transverse movement data comprises a steering wheel rotation angle; determining the lateral acceleration according to the transverse movement data; determining a longitudinal acceleration pre-correction amount of the vehicle according to the transverse movement data and the lateral acceleration; determining a longitudinal acceleration correction amount according to the longitudinal acceleration pre-correction amount; and adjusting the longitudinal acceleration of the vehicle according to the longitudinal acceleration correction amount so as to assist the vehicle to perform curve driving. By adopting the control method and system provided by the invention, the longitudinal movement and the transverse movement of the vehicle can be controlled at the same time, the comfort degree of the vehicle when the vehicle isdriven into the curve is improved, and the vehicle is prevented from colliding with adjacent lane vehicles when the vehicle enters into and out of the roundabout.

Description

Technical field [0001] The invention relates to the field of vehicle assisted driving, in particular to a curve optimization control method and system. Background technique [0002] With the increasing maturity of assisted driving technologies, assisted driving technologies such as adaptive cruise control systems, automatic emergency braking, and lane keeping systems have been widely used in the vehicle market; and current assisted driving technologies are mostly related to the longitudinal or lateral movement of the vehicle. Independent control, and when the driver is not proficient in driving skills, especially when driving in a curve, the driver needs to coordinate the vehicle's lateral steering behavior and longitudinal acceleration and deceleration at the same time, and both hands and feet should take into account the steering wheel and brake pedal or accelerator pedal. When the driver’s hand-foot coordination is weak, the traditional assisted driving technology cannot contr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a curve optimization control method and system to solve the problem that the traditional assisted driving technology cannot control the longitudinal motion and lateral motion of the vehicle at the same time, the lateral and longitudinal acceleration of the vehicle changes abruptly, the comfort of the vehicle decreases, and when entering and leaving the roundabout Problems that may cause the vehicle to collide with vehicles in adjacent lanes, or even cause traffic accidents

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