فایل ورد کامل سیستم‌های ترمز الکتریکی؛ طراحی و بازآفرینی الگوریتم روغن ترمز در وسایل نقلیه برقی و انتقال قدرت

AT)-based hybrid electric vehicle (HEV) is developed, and

a regenerative braking cooperative control algorithm is proposed,

with consideration of the characteristics of the brake system. The

brake system does not require a pedal simulator or a fail-safe

device, because a hydraulic brake is equipped on the rear wheels,

and an electronic wedge brake (EWB) is equipped on the front

wheels of the vehicle. Dynamic models of the HEV equipped with

the brake system developed in this study are obtained, and a

performance simulator is developed. Furthermore, a regenerative

braking cooperative control algorithm, which can increase the

regenerative braking energy recovery, is suggested by considering

the characteristics of the proposed hydraulic brake system. A

simulation and a vehicle test show that the brake system and

the regenerative braking cooperative control algorithm satisfy

the demanded braking force by performing cooperative control

between regenerative braking and friction braking. The regenerative

braking cooperative control algorithm can increase energy

recovery of the regenerative braking by increasing the gradient of

the demanded braking force against the pedal stroke. The gradient

of the demanded braking force needs to be determined with

consideration of the driver’s braking characteristics, regenerative

braking energy, and the driving comfort.

Index Terms—Cooperative control, electronic wedge brake

(EWB), hybrid electric vehicle (HEV), hydraulic brake, regenerative

braking.

Abstract—In this paper, a brake system for an automatic transmission(AT)-based hybrid electric vehicle (HEV) is developed, anda regenerative braking cooperative control algorithm is proposed,with consideration of the characteristics of the brake system. Thebrake system does not require a pedal simulator or a fail-safedevice, because a hydraulic brake is equipped on the rear wheels,and an electronic wedge brake (EWB) is equipped on the frontwheels of the vehicle. Dynamic models of the HEV equipped withthe brake system developed in this study are obtained, and aperformance simulator is developed. Furthermore, a regenerativebraking cooperative control algorithm, which can increase theregenerative braking energy recovery, is suggested by consideringthe characteristics of the proposed hydraulic brake system. Asimulation and a vehicle test show that the brake system andthe regenerative braking cooperative control algorithm satisfythe demanded braking force by performing cooperative controlbetween regenerative braking and friction braking. The regenerativebraking cooperative control algorithm can increase energyrecovery of the regenerative braking by increasing the gradient ofthe demanded braking force against the pedal stroke. The gradientof the demanded braking force needs to be determined withconsideration of the driver’s braking characteristics, regenerativebraking energy, and the driving comfort.Index Terms—Cooperative control, electronic wedge brake(EWB), hybrid electric vehicle (HEV), hydraulic brake, regenerativebraking.