Transmission fluid pressure control systems and methods for continuously variable transmissions
A switching valve control module selectively actuates a switching valve of a continuously variable transmission (CVT) either: (i) from a closed position to an open position; or (ii) from the open position to the closed position. The switching valve prevents and allows transmission fluid flow through a flow path between a transmission fluid pump and a pressure regulator valve of the CVT when the switching valve is in the closed position and the open position, respectively. An adjustment determination module determines a pressure adjustment when the switching valve actuates. A target pressure module determines a target pressure output from the pressure regulator valve. An adjusting module determines an adjusted target pressure based on the pressure adjustment and the target pressure. A regulator valve control module controls opening of the pressure regulator valve based on the adjusted target pressure.
GM GLOBAL TECHNOLOGY OPERATIONS LLC
F F
F16H F16H
inventional inventional
Minh Q. Mohamed O. Bret M. Steven P.
Truong Egal Olson Moorman