Design of Electronic Control System for HCCI Optical Engine and Optical Testing

摘要

An optical engine system have been designed which can realize the goal of spark ignition and homogeneous charge compression ignition. This system consists of an optical engine and an electric control system. We have measured temperature in cylinder and molar coefficient of the main material (CO_2, O_2, N_2, H_2O, fuel) which has a resolution of nanosecond level and millimeter level. To realize the visualization in cylinder, extended pistons, extended cylinder liner and extended cylinder body have been designed and all of them have optical window. To realize the path of laser, a ring gasket of the laser window has been added between the original cylinder head and the extended cylinder body. An optical engine electronic control system based on SCM 80C196 has been designed to make the optical engine work in different testing strategies. The experimental results show the optical engine work well under the control of electric control system and we can detect optical Raman spectroscopy in the optical engine.