車載型燃焼解析装置の開発

抄録

In real drive measurement, Resolution is insufficient to calculate the indicated mean effective pressure (IMEP) or mass burnt fraction (MBF) from the in-cylinder pressure waveform sampled with the actual vehicle crank position pulse. Furthermore, it is difficult to mount and measure the pressure sensor on the engine in the actual vehicle. The portable combustion analysis system using The Fourier type IMEP calculation was developed to solve these it. This system can measure with a crank angle signal using a pulse wheel including missing teeth, and it also supports measurement of Spark plug washer type force sensor (PWFS). The validity of this system was confirmed by an engine bench experiment. In this experiment, cylinder pressure was measured at 6-degree intervals, IMEP equivalent to conventional combustion analyzer and MBF 50% crank angle were obtained.