| 摘要 |
PURPOSE: A transmission control method of an automatic transmission vehicle and a system thereof are provided to prevent transmission shock by setting a line pressure pattern based on the slip rate of an underdrive (UD) clutch. CONSTITUTION: A neutrality control operation unit (11) is installed in a transmission control unit. The neutrality control operation unit carries out a neutrality control. A line pressure setting unit (13) resets a line pressure pattern of a UD clutch according to a neutrality control termination request. The reset is performed based on the slip rate of the UD clutch. A neutrality control termination unit (15) controls the line pressure of the UD clutch according to the line pressure pattern. [Reference numerals] (11) Neutrality control operation unit; (13) Line pressure setting unit; (15) Neutrality control termination unit; (AA) Engine RPM; (BB) Request for releasing neutrality control; (CC) Turbine RPM
|
