Abstract
Keywords:
4WD, Hybrid electric vehicle, Regenerative braking, Vehicle stability control
Abstract
Vehicle stability control for a 4WD hybrid electric vehicle is investigated using the regenerative braking of the rear motor and electro-hydraulic brake(EHB). A fuzzy rule based control algorithm is proposed, which generates the direct yaw moment to compensate the errors of the sideslip angle and yaw rate. Performance of the vehicle stability control algorithm is evaluated using ADAMS/Car and MATLAB Simulink co-simulation. The co-simulation program consists of 3 parts (1) ADAMS/Car model, (2) MATLAB Simulink model and (3) Interface model. It is found from the simulation results that the direct yaw moment generated by the regenerative braking at the rear motor is able to provide the improved stability compared with the vehicle performance without any control. It is found that better performance can be achieved by applying the regenerative braking at the rear motor plus the EHB control.