xEV Regenerative braking control method based on driving perception of xEV vehicles

摘要

The driving recognition-based regenerative braking control method of an xEV vehicle according to an embodiment of the present invention is a method of optimally adjusting the amount of regenerative braking by using front vehicle detection and driving position information. detecting; (b) operating the regenerative braking device as much as the default regenerative braking value when the vehicle in front is not detected, and calculating a distance to the vehicle in front and a braking distance required by the driver when the vehicle in front is detected; (c) The α value obtained by subtracting the safe distance from the vehicle in front when the vehicle is finally stopped from the distance from the vehicle in front, and β obtained by subtracting the regenerative braking distance due to the basic regenerative braking setting value from the braking distance required by the driver based on the brake pedal sensor (BPS) signal comparing values; (d) operating the regenerative braking device by a default regenerative braking value when the β value is larger, and preparing to increase the maximum regenerative braking value by the α value when the α value is larger; (e) determining the driving position of the vehicle and operating the regenerative braking system as much as the default regenerative braking value when it is downhill, and operating the regenerative braking system by the maximum regenerative braking value prepared in step (d) when it is uphill or flat and (f) when the distance from the vehicle in front becomes the same as the safety distance value and the vehicle speed becomes 0, the vehicle is recognized as stopped and the operation of the regenerative braking device is stopped, and the distance from the vehicle in front is the safety distance value If not equal to or when the vehicle speed is not 0, it may be configured to include a step of returning to step (a).