Patent ID: 8678780

Claim:
A system for providing pressurized hydraulic fluid in a transmission of a motor vehicle, the system comprising: a pump for providing pressurized hydraulic fluid, the pump having an inlet port and an outlet port; a bypass valve having an inlet port in communication with the outlet port of the pump, a first outlet port in communication with the inlet port of the pump, and a second outlet port, the bypass valve having a valve moveable between at least a first position and a second position, wherein the inlet port of the bypass valve is in communication with the second outlet port of the bypass valve when the valve is in the first position and wherein the inlet port of the bypass valve is in communication with the first outlet port of the bypass valve when the valve is in the second position; a control device operatively associated with the bypass valve, the control device operable to move the valve between the first position and the second position; and an accumulator in communication with the second outlet port of the bypass valve, the accumulator operable to store the hydraulic fluid, wherein the pump charges the accumulator with the hydraulic fluid when the valve is in the first position and wherein the valve is moved to the second position when the accumulator is fully charged, wherein the control device is an on/off solenoid having an inlet port and an outlet port, and wherein the inlet port is in communication with the second outlet port of the bypass valve and the outlet port is in communication with a control port in the bypass valve and wherein the fluid flows into the solenoid through the inlet port and flows out from the solenoid through the outlet port.