The Development of Powertrain Control Unit (PCU) for Parallel Hybrid Electric Vehicle (PHEV)

In this paper the hardware of PCU based on digital signal processor (DSP) is developed and the software of PCU control with a nested structure is created. The control algorithm is programmed in C language, and the signal collection and communication are realized by assembly language with a high system performance. The electromagnetic interference in PHEV is serious, so the hardware and software anti-interference treatments for the PCU are studied in this paper. Besides, the hardware in the loop simulation system (HILSS) is set up and used as a main test instrument to check the PCU's performance. Also the simulation results of PCU control are shown in this paper.