Patent ID: 8439804

Claim:
An electrohydraulic control for a multi-speed vehicle transmission, comprising a pressure control subassembly, comprising a plurality of pressure control valves including a first pressure control valve and a first electrohydraulic actuator operably coupled to the first pressure control valve, a second pressure control valve, and a second electrohydraulic actuator operably coupled to the second pressure control valve, a shift valve subassembly, comprising a plurality of shift valves including a first shift valve and a first pressure switch operably coupled to the first shift valve, a second shift valve, and a second pressure switch operably coupled to the second shift valve, a first fluid connection connecting the first electrohydraulic actuator directly with the first pressure switch to block application of a first torque transmitting mechanism of the transmission when the transmission is in a non-forward speed ratio, and a second fluid connection connecting the second electrohydraulic actuator with the second pressure switch to block application of a second torque transmitting mechanism of the transmission when the transmission is in a high forward speed ratio.