Patent ID: 6105453
Filing Date: 2000-08-22
Classification: B60W,F16H,Y10T

Abstract:
A system for controlling an automatic transmission of a vehicle having an input shaft connected to an internal combustion engine mounted on the vehicle and an output shaft connected to driven wheels of the vehicle, the transmission transmitting output torque generated by the engine and inputted through the input shaft to the driven wheels through the output shaft when a forward-running range is selected by a vehicle operator,wherein the improvement comprises:a first range selecting means provided at a position close to the vehicle operator seat of the vehicle to be manipulated by the vehicle operator and mechanically connected to a parking mechanism adapted to be connected to the output shaft, for enabling operation, in response to manipulation by the vehicle operator, of the parking mechanism to lock the output shaft such that a parking range is established;a first signal generating means for generating, in response to operation of the parking mechanism, a first signal indicating that the parking range is selected by the vehicle operator;second range selecting means provided at a position close to the vehicle operator seat to be manipulated by the vehicle operator and electrically connected to a hydraulic mechanism of the automatic transmission, for generating a second signal indicating a manual range selected by the vehicle operator, the selected range being from a group of manual ranges including at least the forward-running range and a neutral range; andcontrol means for controlling operation of the hydraulic mechanism in response to the second signal such that the selected range is established, when the first signal is not generated.