| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic pressure controller capable of improving efficiency of supply of oil supplied to a predetermined section from an oil holding device. SOLUTION: In this hydraulic oil controller provided with a power transmission device 6 arranged in a path from a driving force source to a wheel, oil receiving devices 26, 37, 38 for controlling a power transmission condition in the power transmission device 6, and the oil holding device for supplying oil to the oil receiving devices 26, 37, 38, a plurality of oil holding devices 56 have first oil chambers 59, 72 connected with the oil receiving devices 26, 37, 38 and second oil chambers 60, 73 provided with pistons 61, 74 capable of operating among the first oil chambers 59, 72 and them. A first pressure receiving face and a second pressure receiving face are formed in the piston, and area of the second pressure receiving face is smaller than area of the first pressure receiving face. The piston has an oil supply amount controller 46 for increasing oil pressure in the second oil chamber to operate the piston and supply oil in the first oil chambers 59, 72 into the oil receiving devices 26, 37, 38. COPYRIGHT: (C)2006,JPO&NCIPI
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