The present invention improves fuel efficiency of a vehicle and decreases a noise, by decreasing a margin value of a hydraulic pressure supplied to a hydraulic pressure control target and decreasing the hydraulic pressure supplied to the hydraulic pressure control target, when the vehicle is driven automatically. In a hydraulic pressure control device 1 for a vehicle that controls a line pressure or an operation pressure (hydraulic pressure) supplied to a clutch 40 or a transmission 41 (hydraulic pressure control target) provided in the vehicle, the hydraulic pressure control device 1 includes an operation pressure control unit 10 (hydraulic pressure setting device) that sets margin values α1 and α2 of the operation pressure (line pressure) supplied to hydraulic circuits 31 and 31 of the clutch 40 or the transmission 41, on the basis of a predetermined driving plan (refer to FIG. 2) in the case of driving the vehicle automatically.
Hydraulic pressure control device and hydraulic pressure control method for vehicle
2020-11-10
Patent
Electronic Resource
English
HYDRAULIC PRESSURE CONTROL DEVICE AND HYDRAULIC PRESSURE CONTROL METHOD FOR VEHICLE
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