Research On Integrated Power Train Control Technology Based On Lexus400

Along with the massive uses of vehicles, the energy consumption and discharges of automobile become the people's common attention, at the same time, people put forward higher demand to the manipulation simplicity and ride comfortableness. Because of the development of control theory and electron technique, the powetrain integrated control system become the importance direction, which formed through hydraulic actuator controlling the cooperation work among engine, clutch and transmission, realizing the automatic operation.The aspect has been researched many years in foreign countries and their technology is comparative maturity. But they are mastered only by auto production developed countries and the technique locking has been forming. In this domain our country is later and relative less while no matured product. For the single controlled system of ECU, there is less research about, which is composed by gasoline engine and Automatic Hydraulic Transmission, so this subject researched from this aspect.The paper is based on the powertrain system of LEXUS LS400. First, the component and the principle of the powetrain system of LS400 were studied, including the 1UZ—FE engine, the A341E transmission gearbox, the diversified sensors,the solenoid valve etc. And the control regulations of the control system ECU were researched; the control logical relations on the engine were analyzed, which contains the transmission gearbox various sensors, the solenoid valve and the control system ECU. Second, this paper researched the hardware composition and software structure of powertrain system, made actuates the electric circuit and rotational speed simulator, developed integrated control system based on the core of the Intel 80C196KB chip. Finally, through the bench test of shifts gears of experiment, Shifts gears the quality experiment, show that it is feasible to control system based on 80C196KB chip.