Zhiguo Kong

Development of CHS Hybrid System for City Bus

A hybrid electric system with two sets of planetary gear and two electric motors has been developed for city bus, which can provide series/parallel driving mode for HEVs. The power train assembly of this system integrates functions of power coupling, automatic transmission and auto clutch. It’s control system was also designed to provide good fuel economy and traction performance with fuel consumption improved by more than 30 %. The new system can meet requirements of HEVs and Plug-in HEVs, which provides a new choice for china automotive industry with satisfied cost and performance.

Development of hybrid power train system for hybrid electric vehicle

A new kind of hybrid power train system was developed for HEV, which is composed of internal combustion engine (ICE), generator, motor, power coupling and split mechanism, and controller. And the power coupling and split mechanism includes planetary gear, brake and clutch. This new system can provide four driving modes for HEV, which are pure electric, pure mechanical, parallel, and parallel/series. It helps to improve fuel economy and dynamic performance.