基于国产化MCU的ECU硬件设计研究

According to the performance requirements of the current diesel engine control system and the domestic development needs,we introduce a kind of electronic control system hardware design based on the CCFC2003PT 32 bit single chip microcomputer inde-pendently developed by Suzhou C*Core Technology Co., Ltd. The design method of modular design is adopted to develop the elec-tronic control unit hardware, including power module, signal acquisition and processing module, output and drive module, communi-cation module, etc. The MCU core chip calculates the amount of fuel supply and the start time of fuel supply according to the input signals of each sensor and the memory program, and sends an execution signal to the execution original. The control principle of the diesel engine electronic control system includes the operation principle, the control principle, the storage principle, the data transmis-sion principle and the program design, and realizes the control of the injection amount, the injection pulse width, the injection timing control, and the protection of the diesel engine. Based on the above module design, the software program is written to realize the con-trol of diesel engine.