DEVELOPMENT OF POWERTRAIN CONTROLLER

FOR MILD HYBRID ELECTRIC VEHICLE

LUO Yugong  YANG Diange  JIN Dafeng  LI Keqiang  LIAN Xiaomin

(State Key Laboratory of Automotive Safety and   Energy, Tsinghua University, Beijing 100084)

Abstract: Based on the detailed analysis of power demand of driver, engine operating area optimization and brake energy recovery strategy, an energy management strategy of hybrid electric vehicle(HEV), together with the hardware and software system of powertrain controller, is developed to analyze specific mild HEV. Through the hardware-in-the-loop test and real vehicle calibration test, the functions of powertrain controller are validated. The test results show that by using this powertrain controller, HEV can achieve better control performance, with not only 16.9% fuel consumption reduced but also lower emissions than Euro III.

Key words: Mild hybrid electric vehicle   Powertrain controller  Control strategy  Hardware-in-the-loop simulation

CLC No: U469.72

国家863计划资助项目(2001AA501300). Received 20050531, received in revised form 60101