A variator lockout valve system for a continuously variable transmission includes a pair of shift valves. Each shift valve has at least one port that is fluidly coupled to a variator of the continuously variable transmission. Electro-hydraulic actuators control the position of each of the shift valves. When the shift valves are in one position, pressure control valves supply fluid pressure to the variator. If one of the shift valves is in another position, one of the pressure control valves is blocked from supplying fluid pressure to the variator.
申请公布号
EP2513516(A4)
申请公布日期
2013.08.07
申请号
EP20100838077
申请日期
2010.11.10
申请人
ALLISON TRANSMISSION, INC.
发明人
LONG, CHARLES F.;WEBER, DARREN J.;FULLER, JOHN, W.