Development of Combined Control Unit for Hybrid Electric Vehicle 2010-01-0484
The main objective of the combined control unit is to develop a cost effective and optimal control system that manage the proper torque distribution and minimize the loss of communication delay caused by individual inter-controller cooperative control.
The control systems of the Hybrid Electric Vehicle (HEV) are more complicated than conventional vehicle. The major difference of HEV has Power Electronics (PE) system. The control systems of PE-part in the HEV are consisted with Hybrid Control Unit (HCU), Motor Control Unit (MCU) and Battery Management System (BMS) individually.
In this study, the controllers of PE system are combined into one PCB (1Board-1Micom). Vehicle-testing and dynamometer-testing results confirm that the combined control unit achieves approximately 45% cost and 47% weight reduction compare to the non-combined (Individual controllers) same hybrid vehicle.