Patent ID: 9625034
Date: 2017-04-18
CPC Classifications: F16H

Claim:
1. A control device for a stepped transmission mechanism, the control device being mounted in a vehicle having an idle stop function, wherein the control device is configured to perform an interlock by engaging a first clutch and increasing hydraulic pressure of a second clutch up to a first predetermined pressure such that an output shaft of the transmission mechanism is fixed, after an idle-stop condition including at least a requirement that the vehicle is stationary was satisfied and before a stop of an engine, the first clutch is configured to be used for a movement start of the vehicle, and the second clutch is provided separately from the first clutch, the control device comprising: a gradient detecting section that detects a gradient of a road surface on which the vehicle is stationary; and a hydraulic control section that performs a slipping interlock such that a slipping state is realized by reducing the hydraulic pressure to a second predetermined pressure which is lower than the first predetermined pressure, if the gradient detected by the gradient detecting section is lower than or equal to a predetermined value during the interlock and before the stop of the engine.