Fuji Jukogyo Kabushiki Kaisha

Subaru Corporation

Other

Kubota Iron Works Co., Ltd.

Masami Oguri

Shigeaki Yamanaka

Yoshinobu Yamazaki

Takeshi Yoneda

Yoshitsugu Inoue

Susumu Ito

Fumiya Sato

Akihiro Nabeshima

Keigo Yamada

Shuntaro Miura

Hiroshi Kusano

Yoshiyuki Jin

Takumi Araki

A power distribution apparatus for an electric vehicle includes a power distribution mechanism configured to distribute power output from an electric motor to front and rear wheels, and a controller configured to control the power distribution mechanism. The power distribution mechanism includes a first clutch configured to fix a power distribution ratio during straight traveling to a first distribution ratio at which first power distributed to the rear wheels and second power distributed to the front wheels are nearly same, and a second clutch configured to fix the power distribution ratio during straight traveling to a second distribution ratio at which the first power is larger than the second power. The controller is configured set the second clutch to an engaged state and sets the first clutch to a half-engaged state during regenerative braking.

Power distribution apparatus for electric vehicle

A vehicle driving device mounted on a hybrid vehicle includes an engine coupled to wheels of the vehicle via a power transmission path, a transmission mechanism disposed on the power transmission path, a motor generator, a first power transmission mechanism, and a second power transmission mechanism. The motor generator is disposed on a path coupling the engine and transmission mechanism, the first power transmission mechanism is disposed on a path coupling the engine and motor generator, the second power transmission mechanism is disposed on a path coupling the motor generator and transmission mechanism. These paths are included in the power transmission path. The first power transmission mechanism includes a large-diameter rotator and a small-diameter rotator coupled to the engine and the motor generator respectively. The second power transmission mechanism includes a small-diameter rotator and a large-diameter rotator coupled to the motor generator and the transmission mechanism respectively.

Vehicle driving device

A method is required in which a plate-like flange member may be firmly secured at the front end of a hollow shaft member through a plastic working treatment by virtue of caulking combination, so as to manufacture a hollow shaft having a flange at one end thereof. In detail, the method comprises preparing a plate-like flange member A having an axial projectionincluding a constricted portionon one side thereof; preparing a hollow shaft member B having an elongate internal space arranged in the axial direction thereof; engaging the axial projectionof the plate-like flange member A into a front end portion of the hollow shaft member B and at the same time inserting a mandrelinto the hollow shaft member B; pressing the hollow shaft member B in its axial direction towards the plate-like flange member A while performing a shear spinning treatment on the outer periphery surface of the hollow shaft member B so as to reduce the size of the hollow shaft member B in its radial direction; engaging the front portion of the hollow shaft member B with the constricted portionof the axial projectionof the plate-like flange member A by virtue of caulking combination.

Method of manufacturing a hollow shaft having a flange at one end thereof

An automatic transmission for a vehicle having a plurality of gear trains provided between an input shaft and an output shaft, comprises a hollow shaft coaxially including the input shaft, a forward drive gear rotatably mounted on the hollow shaft, a forward driven gear integrally mounted on the output shaft and constantly meshing with the forward drive gear, a reverse drive gear rotatably mounted on the input shaft, a changeover hub integrally mounted on the hollow shaft between the forward drive gear and the reverse drive gear, an first idler gear constantly meshing with the reverse drive gear, a second idler gear integrally formed with the first idler gear and constantly meshing with the forward driven gear and a changeover member provided between the forward gear and the reverse drive gear for engaging the changeover hub either with the forward drive gear or the reverse drive gear.

Automatic transmission

A method is required in which a plate-like flange member may be firmly secured at the front end of a hollow shaft member through a plastic working treatment by virtue of caulking combination, so as to manufacture a hollow shaft having a flange at one end thereof. In detail, the method comprises preparing a plate-like flange member A having an axial projection including a constricted portion on one side thereof; preparing a hollow shaft member B having an elongate internal space arranged in the axial direction thereof; engaging the axial projection of the plate-like flange member A into a front end portion of the hollow shaft member B and at the same time inserting a mandrel into the hollow shaft member B; pressing the hollow shaft member B in its axial direction towards the plate-like flange member A while performing a shear spinning treatment on the outer periphery surface of the hollow shaft member B so as to reduce the size of the hollow shaft member B in its radial direction; engaging the front portion of the hollow shaft member B with the constricted portion of the axial projection of the plate-like flange member A by virtue of caulking combination.

Growing community of inventors

Tokyo, Japan

Masami Oguri