Patent ID: 8103395

Claim:
A vehicle for operation on the ground, comprising: a chassis, said chassis having a hybrid electric powertrain, said hybrid electric powertrain having a hybrid electric traction motor; a power take off selectively driven by said hybrid electric traction motor; an electronic controller having software for controlling the operation of said selectively driven power take off; a hydraulic pump driven by said selectively driven power take off, a hydraulic system, said hydraulic pump providing hydraulic potential to said hydraulic system, said hydraulic system having at least one high pressure hydraulic hose and at least one hydraulic circuit, said at least one high pressure hydraulic hose conducting said hydraulic potential from said hydraulic pump to said at least one hydraulic circuit; and at least one analog hydraulic pressure transducer being in fluid communication with said at least one high pressure hydraulic hose and providing an analog pressure signal to said software, said software calculating an instantaneous system pressure variable, a mean system pressure variable, and a trend variable from said analog pressure signal provided by said at least one analog hydraulic pressure transducer, said software using said instantaneous system pressure variable, mean system pressure variable, and trend variable to determine the operation of said selectively driven power take off.