Patent ID: 8016718
Filing Date: 2011-09-13
Classification: F16H,Y10T

Abstract:
1. A vehicle drive unit, comprising: a hydraulic circuit that includes: wherein the oil pump is stopped and driven as required in a state where the manual valve is set to a running position, and the hydraulic circuit supplies the hydraulic pressure accumulated in the accumulator to the hydraulic servo when driving of the oil pump is started, the accumulator is connected through the switch valve to a second oil passage connecting the hydraulic control valve and the hydraulic servo, a first one-way valve for allowing oil to flow only in a direction from the hydraulic control valve toward the accumulator and the hydraulic servo is provided in the second oil passage connecting the hydraulic control valve and the hydraulic servo, and the switch valve is switched to a communicating state when the oil pump is driven, and to a shut-off state when the oil pump is stopped.