Development and Testing of Vehicle Control Unit for Hybrid Electrical Vehicle

A general-purpose Vehicle Control Unit(VCU)was developed using a Freescale's microcontroller(9S12XDT512)with dual cores.In the development of VCU,generality of hardware was considered to make sure it could be applied to many kinds of Hybrid Electrical Vehicle(HEV)control.To verify the function of VCU,this article took a hybrid electrical bus as the controlled subject and then organized a series of simulation testing using a hardware in-theloop simulation system based on dSPACE.The testing indicated that VCU could accurately control the vehicle to achieve hybrid working state,verifying the validity of the hardware of VCU.