| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a regenerative-braking control device that suppresses noise of a drive motor during deceleration regeneration. <P>SOLUTION: A drive system 100 includes a regenerative-braking control device 200. The regenerative-braking control device 200 comprises a transmission 50, a vehicle-speed sensor 90, and a hybrid ECU 110. The transmission 50 is provided on a ring gear shaft 41 of a planetary gear 40. When a hybrid car mounted with the drive system 100 is decelerated, the transmission 50 switches a speed-reduction ratio from a high gear having a relatively small speed-reduction ratio to a low gear having a relatively large speed-reduction ratio according to a variable-speed signal CHS from the hybrid ECU 110. The transmission 50 decelerates the rotation speed of a motor/generator MG2 and increases an output torque of the motor/generator MG2 so as to output the increased output torque to the ring gear shaft 41. <P>COPYRIGHT: (C)2010,JPO&INPIT |
