| 摘要 |
PROBLEM TO BE SOLVED: To provide a four wheel drive vehicle for preventing the deterioration of a speed reducer if continued with a two wheel drive mode for a long time. SOLUTION: The speed reducer 9 is driven by operating a generator 7 and a motor 4 in the two wheel drive mode when an acceleration opening is a preset value or more, except that the speed reducer 9 is limited to be driven once each time an ignition switch 26 is turned on. |
