| 摘要 |
<P>PROBLEM TO BE SOLVED: To actualize compensation for the shift speed of a hybrid transmission which performs shift operation with a motor/generator even when a sudden shift exceeding the limit of the capability of the motor/generator is requested. <P>SOLUTION: During the sudden shift of the hybrid transmission from a current shift condition shown by a solid line lever into a target shift condition shown by a dashed line lever, an engine-side speed (an engine speed) of an engine clutch E/C is increased to a value higher than a transmission-side speed (an E-point equivalent value) of the engine clutch E/C, preferably to a speed at a F-point corresponding to a target shift ratio shown by the dashed line lever and furthermore the engine clutch E/C is slip-joined. Thus, the transmission-side speed (the E-point equivalent value) of the engine clutch E/C is helped to be increased to a F-point equivalent value shown by the same and a low-side shift is promoted to be attained by the increase of rotation. Thereby, the compensation for the shift speed is actualized as required in sudden low-side shift exceeding the limit of the capability of the motor/generator MG1, MG2. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
