|
Tan Wenchun
Yu Shitao
Yang Lin
Zhuo Bin
Institute of Automotive Electronic
Technology,
Shanghai Jiaotong University,
Shanghai 200030, China |
|
|
APPLICATION OF CIRCUIT SIMULATION IN
HARDWARE DESIGN FOR ELECTRONIC CONTROL HIGH PRESSURE COMMON-RAIL
FUEL SYSTEM OF DIESEL ENGINE
Abstract:
By means of circuit simulation, hardware of electronic control unit (ECU) of high pressure common-rail electronic control fuel system for diesel engine is designed. According to the system requirements for hardware of ECU, signal-processing circuit of variable reluctance (VR) sensor, filter circuit for input signal, high voltage power circuit and driver and protection circuit of solenoid are simulated as emphases. Difficulties of wide scope of VR sensor output signal, efficiency of high voltage power and reliable and swift driver of solenoid are solved. The results of simulation show that the hardware meets the requirement of the fuel system. At the same time, circuit simulation can greatly increase quality of the design, alleviate design labor and shorten design time.
Key words:
Diesel engine Electronic control unit (ECU) Circuit simulation |