| 摘要 |
PROBLEM TO BE SOLVED: To provide a four-wheel drive vehicle control unit including a connection and disconnection mechanism connecting or disconnecting a power transmission path for transmitting part of power from a driving force source transmitted to main driving wheels via a transmission to sub-driving wheels, capable of suppressing the degradation in the durability of constituent components of the sub-driving-wheel-side power transmission path.SOLUTION: Since a rear-wheel-16-side power transmission path is disconnected at a time of switching driving ranges of a transmission 18, it is possible to avoid inputting a torque to the rear-wheel-16-side power transmission path at the time of switching ranges. It is, therefore, possible to suppress degradation in the durability of constituent components of the rear-wheel-16-side power transmission path. |
