Patent ID: 6702716
Filing Date: 2004-03-09
Classification: B60K,B60W,F16D,F16H,Y02T,Y10T

Abstract:
A power transmission comprising:an engine which includes a plurality of cylinders; a drive-power transmission, which transmits a rotational driving force from said engine; a frictionally engaging element, which can set variably a transmission capacity for said drive-power transmission; and a transmission-capacity controller, which controls an engagement operation of said frictionally engaging element; wherein: while said engine is in a partial cylinder operation mode, said transmission-capacity controller controls the engagement operation of said frictionally engaging element to attain a transmission capacity that is smaller than for a case of said engine in an all cylinder operation mode; and said transmission-capacity controller controls the engagement operation of said frictionally engaging element to make the transmission capacity that corresponds to a predetermined rotational speed of said engine larger for said engine in said all cylinder operation mode than for said engine in said partial cylinder operation mode.