為使發(fā)動(dòng)機(jī)滿足混合動(dòng)力系統(tǒng)轉(zhuǎn)矩分配控制的需要,針對(duì)TJ376QE電噴汽油機(jī),采用步進(jìn)電機(jī)將其機(jī)械節(jié)氣門改造成電控節(jié)氣門,利用MC68376單片機(jī)TPU模塊的步進(jìn)電機(jī)控制功能,實(shí)現(xiàn)了電控節(jié)氣門開度的有效控制。臺(tái)架聯(lián)合調(diào)試結(jié)果表明,所開發(fā)的電控節(jié)氣門系統(tǒng)具有較高的響應(yīng)速度和控制穩(wěn)定性,可準(zhǔn)確執(zhí)行主控制器的發(fā)動(dòng)機(jī)轉(zhuǎn)矩控制指令。
關(guān)鍵詞:電控節(jié)氣門,汽油機(jī),混合動(dòng)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