Patent ID: 9482338
Filing Date: 2016-11-01
CPC Classification: F16H,Y02T

Claim Text:
1. An oil pressure control device for an automatic transmission, the automatic transmission including an engagement element configured to be engaged by application of oil pressure that is equal to or larger than a predetermined pressure in any case where a control condition of the automatic transmission is a first condition or a second condition, a first oil passage configured to supply the oil pressure to the engagement element when the control condition of the automatic transmission is the first condition, a second oil passage configured to supply the oil pressure to the engagement element when the control condition of the automatic transmission is the second condition, and a switch device configured to switch an oil passage, through which the oil pressure is supplied to the engagement element, between the first oil passage and the second oil passage, the oil pressure control device comprising an electronic control unit configured to switch the oil passage from the first oil passage to the second oil passage when a switch operation is performed to switch the control condition of the automatic transmission from the first condition to the second condition, on condition that the oil pressure in the second oil passage is equal to or larger than a threshold pressure corresponding to the predetermined pressure.