| 摘要 |
PURPOSE: A method and a device for controlling a shift of an automatic transmission are provided to perform a stable down hill fuzzy control by applying a gradient, a deceleration, and the condition of an acceleration pedal. CONSTITUTION: A gradient detector(110) detects the gradient of a road. A vehicle speed detector(120) detects a vehicle speed from revolutions of a transmission output shaft. An acceleration pedal detector(130) detects the displacement of the acceleration pedal. A transmission terminal detector(140) detects the transmission terminal determined by a delivery rate of a throttle valve and the vehicle speed in a driving condition. A controller(150) determines the target transmission terminal according to the gradient and the deceleration and combines the target transmission terminal with the output of a duty signal. An actuator(160) is operated with hydraulic pressure according to the duty signal of the controller and operates a combining element and a releasing element.
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