| 摘要 |
PROBLEM TO BE SOLVED: To enhance performance of a liquid pressure supplying device for a power transmitting mechanism and a brake device. SOLUTION: A four-wheel driving vehicle 1 has a differential mechanism 40 installed in the power transmitting mechanism 20 and equipped with a multi-disc clutch 41 for 4WD system and a multi-disc clutch 42 for restricting the differential motion, a brake caliper piston 7, and a hydraulic control device 30 to control the supply of the liquid pressure of a working liquid supplied to the multi-disc clutch 41 etc., and is configured with a reserver tank 51 to store the working liquid, accumulators 61-63 to store the working liquid in the pressurized state, and a liquid pressure pump 52 to supply the liquid pressure of the working liquid stored in the reservoir tank 51 and the accumulators 61-63 to the multi-disc clutch 41 etc., wherein the liquid pressure control device 30 performs the control to select either of the supply of the liquid pressure conducted by the liquid pressure pump 52 to the multi-disc clutch 41 etc. and the supply of the liquid pressure in the pressurized state from the accumulators 61-63 to the multi-disc clutch 41 etc. COPYRIGHT: (C)2007,JPO&INPIT
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