Multiplexed control system and method for an electrically variable hybrid transmission

A control system for an electrically variable hybrid transmission comprising:

• a multiplex valve;
• a solenoid valve operable to selectively provide fluid pressure to said multiplex valve;
• an electronic transmission range selection valve in selective fluid communication with said multiplex valve;
• and
• a dog clutch relay valve in selective fluid communication with said multiplex valve, wherein said multiplex valve has a spring set position and a pressure set position, said multiplex valve being operable to distribute pressurized fluid from said solenoid valve to said electronic transmission range selection valve when in said spring set position, and said multiplex valve being operable to distribute pressurized fluid from said solenoid valve to said dog clutch relay valve when in said pressure set position.

A control system for an electrically variable hybrid transmission comprising:

• a boost valve;
• a solenoid valve operable to selectively provide fluid pressure to said boost valve;
• an electronic transmission range selection valve in selective fluid communication with said boost valve;
• a dog clutch relay valve in selective fluid communication with said boost valve;
• and
• wherein said boost valve has a spring set position and a pressure set position, said boost valve being operable to distribute pressurized fluid from said solenoid valve to said electronic transmission range selection valve when in said spring set position, and said boost valve being operable to distribute pressurized fluid from said solenoid valve to said dog clutch relay valve when in said pressure set position.