為使發動機滿足混合動力系統轉矩分配控制的需要,針對TJ376QE電噴汽油機,采用步進電機將其機械節氣門改造成電控節氣門,利用MC68376單片機TPU模塊的步進電機控制功能,實現了電控節氣門開度的有效控制。臺架聯合調試結果表明,所開發的電控節氣門系統具有較高的響應速度和控制穩定性,可準確執行主控制器的發動機轉矩控制指令。
關鍵詞:電控節氣門,汽油機,混合動力汽車
Development of Electrically Controlled Throttle System of Gasoline Engine for Hybrid Electric Vehicle Xie Hu i, HaoM ingde & Zhou Nenghu i Tianjin University, S tate Key Laboratory of Engine Com bustion, Tianjin　300072
[ Abstract] 　The originalmechanical throttle of TJ376QE EFI gasoline engine ismodified into an electrically controlled throttle with a step motor. Utilizing the step motor control function of TPU module in microp rocessor MC68376, the effective control on the opening of throttle is realized. Experiment results show that the electrically controlled throttle developed has high response speed and good control stability, which can imp lement accurately the engine torque command from main controller.
Keywords: Electr ica lly con trolled throttle, Ga soline eng ine, HEV