A control apparatus that controls a four-wheel drive vehicle in which a driving force is transmitted to rear wheels via a dog clutch, a propeller shaft, and a driving force transmission apparatus is configured to, when switching to a four-wheel drive mode, reduce a difference in rotation speeds of an intermediate rotational member and a ring gear member by a frictional force between a friction surface of a friction member, which is configured such that its rotation relative to the intermediate rotational member is restricted, and a target frictional slide surface of the ring gear member, and then couple the intermediate rotational member and the ring gear member by a clutch member in a state in which engagement forces of friction clutches configured to transmit the driving force between each of first and second output rotational members and the intermediate rotational member of the driving force transmission apparatus are set to engagement forces that allow their relative rotation.
CONTROL METHOD FOR FOUR-WHEEL DRIVE VEHICLE, CONTROL APPARATUS FOR FOUR-WHEEL DRIVE VEHICLE, AND FOUR-WHEEL DRIVE VEHICLE
09.08.2018
Patent
Elektronische Ressource
Englisch
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