| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of torque reduction in a torque phase in upshifting of a stepped auxiliary transmission, in a transmission for a vehicle provided with the stepped auxiliary transmission and a stepless main transmission. SOLUTION: In the transmission provided with the stepped auxiliary transmission performing gear change from a first speed to a second speed by engaging a high speed step selection clutch and the stepless main transmission in a rear stage of the stepped auxiliary transmission, engine torque correction value proportional to transmission torque of the high speed step selection clutch is established in the torque phase in upshifting from the first speed to the second speed , and engine torque is corrected and increased based the correction value. COPYRIGHT: (C)2007,JPO&INPIT |
