Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Atsushi Torii

Ryoji Mizutani

Yuki Tojima

Shigetaka Isogai

Masafumi Sakuma

Yasuji Taketsuna

Michitaka Tsuchida

Akinori Hoshino

Yasuaki Tahara

Masahiro Omura

Kenji Harada

Kenichi Katae

Fumito Kurata

Hiroyuki Yamamoto

Junichiro Sakurai

Shigekazu Yogo

Ryóji Mizutani

A reduction gear having a planetary gear set for reducing the output rotation speed of a motor, a counter gear set for reducing the output rotation speed of the planetary gear set, and a planetary gear set for reducing the output rotation speed of the counter gear set. The output shaft and input shaft that are on the same axis and belong to the planetary gear set are arranged in parallel with the output shaft and input shaft that are on the same axis and belong to the planetary gear set. The input shaft of the counter gear set is common to the output shaft of the planetary gear set. The output shaft of the counter gear set acts commonly as the input shaft of the planetary gear set.

Reduction gear

An in-wheel motor includes a rotating electric machine provided at a wheel and applying driving force to the wheel, a housing housing the rotating electric machine and rotatably supporting the wheel, and a vibration damping member provided between the housing and a ball joint as a mounting portion for mounting the housing on a vehicle body.

Vibration damping member for in-wheel motor

An in-wheel motor includes a motor, a shaft, an oil pump and oil paths. The oil pump is provided on one end of the shaft. The motor includes a stator core, stator coils and a rotor. The oil pump pumps up an oil from an oil reservoir via an oil path to supply the pumped-up oil to another oil path. The another oil path supplies the oil from the oil pump to the outer periphery of the stator core of the motor from an opening end.

In-wheel motor capable of efficiently cooling motor

A wheel supporting apparatus includes dampers, ball joints, a knuckle, an upper arm and a lower arm. The dampers are attached to a case of an in-wheel motor in the top-bottom direction of the vehicle's body and are connected respectively to the ball joints. The upper arm and the lower arm have respective one-ends connected to respective dampers via the ball joints and respective other ends pivotably fixed to the vehicle's body. The knuckle is connected to the ball joints to rotatably support a wheel hub via hub bearings.

Wheel supporting apparatus improving ride comfort of vehicle

An in-wheel motor includes a motor generating motive power, a planetary gear arranged toward a wheel disc relative to the motor to reduce an output of the motor, and a shaft arranged toward the wheel disc relative to the planetary gear and connected to a planetary carrier. Shaft is connected to a constant velocity joint transmitting the motive power to wheel disc.

In-wheel motor with high durability

A laminated core having a first number of magnetic poles, the first number being a natural number divided by two, of a rotary electric machine, includes a plurality of arc-shaped unit cores each having a second number of magnetic poles, the second number being a natural number except for an aliquot part of the first number. The unit cores are wound and laminated a predetermined number of times in a circumferential direction into a spiral shape in such a manner that an axial lamination amount of the unit cores is obtained by an equation of X=&#x3b8;*t/360, X being the axial lamination amount, &#x3b8; being a winding angle of the unit cores, and t being a thickness of the unit core. The unit cores are adjacent to each other in the circumferential direction connected to each other at a part of an outer circumference thereof.

Laminated core of rotary electric machine

An in-wheel motor includes a wheel disc, a wheel hub, a case, a motor, a planetary gear and a shaft. The wheel disc is connected to the wheel hub. The planetary gear is connected to the motor's rotor. The case includes subcases and a diaphragm. One subcase is arranged to have a side portion closer to the vehicle's body and accommodates the motor and the planetary gear. The motor and the planetary gear are adjacently arranged and fixed to one subcase. The other subcase is arranged closer to the wheel disc and fixed at a plane perpendicular to the shaft by a screw to one subcase.

Growing community of inventors

Nishio, Japan

Atsushi Torii