Fang Yong

Development of pure electric vehicle powertrain controller based on hardware in the loop platform

With characteristics of high efficiency, low energy consumption and zero emission, pure electric vehicle is an effective solution for the recent energy crisis and environmental issues. This paper develops a pure electric vehicle control strategy that will be used on ENRANGER G3 - a compact SUV model by Wei Chai Motor. A hardware in the loop (HIL) test platform was constructed accordingly. The platform includes those mathematical models of major electrical components and those HILs hardware boards where the plant model is running. Control model was then tested comprehensively and verified on the real vehicle later. The testing results prove that HIL test can significantly reduce the development time and effort, while improve the quality of the control strategies at the same time.

Study on High Voltage power up down control strategy of pure electric vehicles

The research of electric vehicles has attracted more and more attention. High voltage (Hv) power up/down control strategy which sometimes could be complicated yet confused, is very important part of pure electrical vehicle algorithm. This study gives an Hv power up/down control strategy which divides the high voltage power up/down control into five stages. In each stage, the operation mode is set reasonably based on various system situations. The diagnosis and fault handling procedure were also developed and put inside the control strategy algorithm too. A simulation was setup and run, the test result could prove that the proposed control strategy has very good efficiency and reliability.