Control Methodology of Stability Optimization for HEV Powertrain

Mode switching plays an important role in the operation of HEV. Clutch is the key actuator to realize mode conversion, but it is difficult to realize seamless mode conversion due to the friction caused by the use of clutch. In addition, as is usual in an electromechanical coupling system, the hybrid powertrain may exhibit complex dynamic behaviors as the operating parameters change. In this chapter, we introduce, analyze and optimize the hybrid system mathematical model of parallel series hybrid electric vehicle (PSHEV) during mode transition.