Jin Qiqian

Design method and control optimization of an Extended Range Electric Vehicle

Extended Range Electric Vehicle (EREV) is a promising choice to overcome the limitation on the driving range of Electric Vehicle. However, its potential advantages extremely depend on the system design, especially the battery. This paper focuses on the component sizing of the energy and power of battery system, power design of R-Ext and the traction motor. The control strategy is discussed in this paper, and control parameters optimization of the EREV based on global optimization is implemented, aiming to minimizing the loss of power-train in view of prolonging battery life. A comparative analysis is given to assess the optimization results.

Research on control strategy and simulation analysis for Dual Motor Powertrain configuration with Gasoline Direct Injection engine

The dual motor powertrain (DMP) configuration is composed of gasoline direct injection (GDI) engine, two motors(one motor connects with input shaft of transmission, namely I-motor, another motor connects with output shaft of transmission, namely II-motor), automatic mechanical transmission (AMT), battery package and hybrid control system. The DMP hybrid system has the functions of engine start/stop with GDI, electric driving, only engine driving, boost, series, regenerative braking, it has 30%-50% improvement of fuel consumption and reduce more than 50% exhaust gas emission. A hybrid passenger car equipped the hybrid system was analyzed in this paper, and the control strategy and simulation were analyzed. The simulation results show the fuel economy can be improved more than 40%. The research results can supply reference for development of hybrid vehicle in next step.