Patent ID: 6835152
Filing Date: 2004-12-28
Classification: F16H,Y10S

Abstract:
An automatic transmission, comprising:a plurality of hydraulic servos which respectively engage and disengage a plurality of frictional engagement elements; a first solenoid valve for gear shifting which is used for generating a hydraulic pressure supplied to a predetermined hydraulic servo; a second solenoid valve for lock-up which is used for generating a hydraulic pressure supplied to a fluid transmission apparatus for executing a lock-up; a control apparatus; a first connector which connects the first solenoid valve and the control apparatus; a second connector which connects the second solenoid valve and the control apparatus; a failsafe mechanism which achieves a predetermined shift range in a high-speed-side when the first connector is disconnected; and a gear shift processing mechanism which achieves a predetermined shift range among a plurality of shift ranges when the second connector is disconnected.