Patent ID: 8527169

Claim:
A control for a torque converter comprising a pump, a turbine fluidly coupled to the pump, a pump clutch to selectively mechanically couple the pump to a vehicle drive unit, and a torque converter clutch to selectively mechanically couple the pump to the turbine, the control comprising: a valve and fluid passage assembly operably coupled to the torque converter to control the engagement and disengagement of a pump clutch and the torque converter clutch during a plurality of phases of operation of the torque converter, the valve and fluid passage assembly including a pressure control valve multiplexed to control the engagement and disengagement of the pump clutch and the torque converter clutch; and a fluid flow control valve in fluid communication with the pressure control valve to selectively alter the path of fluid flow from the at least one pressure control valve to the fluid passage assembly; wherein the fluid flow control valve comprises a first fluid chamber configured to selectively communicate with the pump clutch, a second fluid chamber configured to selectively communicate with the torque converter clutch, and a third fluid chamber configured to selectively communicate with one of the pump clutch and the torque converter clutch.