A method of pressure control for transmissions having a hydraulic circuit selectively communicating with first and second pumps via first and second regulators includes commanding communication to the hydraulic circuit to transition from the first to the second pump and the PCS to set the regulators...http://www.google.fr/patents/US8062001?utm_source=gb-gplus-shareBrevet US8062001 - Method for controlling pump transitions in a multi-mode hybrid transmission
Method for controlling pump transitions in a multi-mode hybrid transmission
