Variator Switching Valve Scheme For A Toroidal Traction Drive Transmission
摘要
An apparatus for controlling a variator having at least one roller between two torroidal disks may include at least one actuator responsive to fluid pressure at separate high side and low side fluid inlets thereof to control torque applied by the at least one roller to the disks. First and second variator switching valves may each receive a first fluid at a first pressure and a second fluid at a second lesser pressure. The first and second variator switching valves supply the first fluid to the high side fluid inlet and the second fluid to the low side fluid inlet during two of four different operational states together defined by the variator switching valves, and supply the second fluid to the high side fluid inlet and the first fluid to the low side fluid inlet during each of the remaining two of the four different operational states.
申请公布号
AU2011343891(B2)
申请公布日期
2016.06.23
申请号
AU20110343891
申请日期
2011.12.14
申请人
ALLISON TRANSMISSION, INC.
发明人
LONG, CHARLES F.;WEBER, DARREN J.;FULLER, JOHN WILLIAM EDWARD