Patent ID: 8434603

Claim:
A hydraulic control system for controlling a dual clutch and a plurality of synchronizers in a transmission, the hydraulic control system comprising: a source of pressurized hydraulic fluid; a first actuator control device in downstream fluid communication with the source of pressurized hydraulic fluid; a second actuator control device in downstream fluid communication with the source of pressurized hydraulic fluid; a first clutch control device in downstream fluid communication with the source of pressurized hydraulic fluid; a first clutch actuator for engaging the dual clutch, wherein the first clutch actuator is in downstream fluid communication with the first clutch control device; a second clutch control device in downstream fluid communication with the source of pressurized hydraulic fluid; a second clutch actuator for engaging the dual clutch, wherein the second clutch actuator is in downstream fluid communication with the second clutch control device; a first valve in downstream fluid communication with the first and second actuator control devices; a second valve in downstream fluid communication with the first valve, the first clutch control device and the second clutch control device, and wherein the second valve is moveable between at least two positions by the first and second clutch control devices; and a plurality of actuators wherein at least a first of the plurality of actuators is in downstream fluid communication with the first valve and at least a second and a third of the plurality of actuators is in downstream fluid communication with the second valve, and wherein the plurality of actuators are operable to selectively actuate the plurality of synchronizers upon receipt of a flow of pressurized hydraulic fluid from at least one of the first and second actuator control devices.