To provide a drive force transmission apparatus smoothly performing switching from a four-wheel drive state to a two-wheel drive state and switching from a two-wheel drive state to a four-wheel drive state, and a control method therefor.
The drive force transmission apparatus includes: a propeller shaft 2 receiving a drive force of an engine 102 in a four-wheel drive vehicle 101 from a front differential case 111 and transmitting the drive force from a front wheel side to a rear wheel side between the front wheel side and the rear wheel side; a first drive force interruption unit 3 for connecting the propeller shaft 2 and the front differential case 111 so as to be disconnected; a second drive force interruption unit 4 for connecting the propeller shaft 2 and one of a pair of rear wheels 105 so that transmission torque becomes variable; and an ECU 5 for outputting a control signal for making the second drive force interruption unit 4 execute the connection before making the first drive force interruption unit 3 execute the connection and also making the second drive force interruption unit 4 execute the release of the connection before making the first drive force interruption unit 3 execute the release of the connection.
| JP3578019 | HYBRID VEHICLE |
| WO/2012/086312 | TRACTION TRANSMISSION CAPACITY CONTROL DEVICE |
| JPH04176733 | ROTATION TRANSMISSION DEVICE |
SAKAI TOSHIBUMI
ONO AKIHIRO
TAKUNO HIROSHI
HORAGUCHI MASAHIRO
Takashi Nomiyama
Hiroyuki Ito