Patent ID: 9267597
Filing Date: 2016-02-23
CPC Classification: B60T,F16D,F16H

Claim Text:
1. A method for increasing a volume of hydraulic fluid in a reservoir of a transmission, comprising: providing a retarder mounted to the transmission, an accumulator including an internal cavity, a piston disposed in the internal cavity of the accumulator, a solenoid, a valve, a cooler and a controller; enabling the solenoid from an off state to an on state; transferring fluid pressure from the valve to the piston; moving the piston from a first position to a second position in the internal cavity; discharging an amount of hydraulic fluid from the internal cavity of the accumulator to the reservoir to assist with a startup procedure and not discharging the amount of hydraulic fluid through the cooler; and increasing the volume of hydraulic fluid in the reservoir.