| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an engine start control device of a hybrid transmission capable of suppressing an engaging shock of an engine clutch when an engine is started while an electric automobile travels by selecting a low fixed transmission ratio mode. <P>SOLUTION: A hybrid transmission comprising a differential gear transmission having a planetary gear train in which a first motor generator MG1 and a second motor generator MG2 are arranged at both ends of a lever on an alignment chart, and an engine E and an output shaft OUT are arranged at the inner position of the lever, and an engagement element to select a plurality of traveling modes, and an engine clutch EC which is provided at a position in the middle of an input path from the engine E and engaged by a friction force, has an engine start control means which has an EV-Low traveling mode at a low transmission ratio with a low fixed brake tightened and the second motor generator MG2 as a power source for a traveling mode, and perform partial clutch control to slidingly release a tightened low fixed brake when engaging the engine clutch EC during the engine start while a vehicle travels in an EV-Low mode. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
