Development of Supervisory Control System for Hydraulic Hybrid Vehicles

In order to achieve comprehensive vehicle fuel economy, dynamic performance and safety, a novel hydraulic hybrid vehicle with supervisory control system is proposed. The hierarchical structure control system integrates driving intention recognition, power distribution, regenerative braking intensity regulation and temperature monitoring modules. The high speed CAN bus is used to communicate for different modules in the supervisory control system. Supervisory control system recognizes the driver’s intention and the vehicle status through the feedback signals of sensor system, and reasonably distributes power output of all power sources. Finally, the experimental efforts have been performed to assess the performance for the proposed supervisory control system.