| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle motor drive using a two-way roller clutch for reducing vibration and abnormal noise when a pressed accelerator pedal is released and pressed again. <P>SOLUTION: The vehicle motor drive includes: an input shaft 7 to which rotation of an electric motor 3 is input; a first-speed input gear 9A and a second-speed input gear 9b provided on the input shaft 7; a first-speed output gear 10A and a second-speed output gear 10B engaging with the first-speed input gear 9A and the second-speed input gear 9B, respectively; a two-way roller clutch 16A for a first speed; a two-way roller clutch 16B for a second speed; and a motor torque control device 59 for the electric motor 3. The motor torque control device 59 executes control so that the electric motor 3 is used for generating torque to hold the two-way roller clutch 16A for a current shift stage at an engaging position when the accelerator pedal 61 is not pressed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
