Power transmission

Details Power transmission Power transmission

B - Operations, Transporting

60

K

B60K 23/00 (2006.01) F02D 17/00 (2006.01) F16H 9/00 (2006.01) F16H 61/00 (2006.01) B60K 6/04 (2006.01)

Patent

CA 2408682

A power transmission comprises an engine E with a plurality of cylinders, a belt-type continuously variable transmission CVT, which changes the rotational speed being transmitted from the engine, a control valve CV, which variably sets the line pressure used for controlling the speed change ratio of the transmission, and an electrical control unit ECU, which calculates the torque of the output shaft of the engine when the engine is decelerating in a partial cylinder operation mode. While a vehicle equipped with this power transmission is decelerating with the engine being in a partial cylinder operation mode, the control valve CV sets the line pressure in correspondence to the torque of the engine output shaft calculated by the electrical control unit ECU.

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