Toyota Jidosha Kabushiki Kaisha

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Mitsubishi Jidosha Kogyo K.k.

Koji Ando

Kaoru Sawase

Yuichi Ushiroda

Naoki Takahashi

Keiji Suzuki

Yoshihiro Ikushima

Hirokazu Suzuki

Hideki Tamoto

Tomohiro Narita

Kazuhiko Yuasa

Kazuhiko Aono

Akifumi Miyazaki

Takeshi Arino

Hisao Arita

A power transmission system include a transfer case including an input shaft, an output shaft, a planetary gear device including a first rotary element, a second rotary element, and a third rotary element, and a HIGH-LOW switching mechanism including a switching sleeve configured to selectively couple the output shaft to the first rotary element and the second rotary element, an electric motor coupled to one of the first rotary element and the second rotary element, and an electronic control unit configured to control the rotational speed of the electric motor, during switching operation of the HIGH-LOW switching mechanism while a vehicle is stopped, such that the rotational speed of the input shaft becomes substantially equal to zero.

Power transmission system, and control method of power transmission system that favorably suppress unusual sound generated from a switching sleeve

The rotation of a first rotating element is shifted in speed by a speed shift device, and is transmitted to a second rotating element or a third rotating element of a differential device via a first clutch or a second clutch. In this manner, the torque of right and left driving wheels can be controlled. Furthermore, in conjunction with limitation of the differential motion, the amount of torque transmitted to a fourth rotating element is eliminated by allowing the speed shift device to freely rotate, and the accumulated amount of sliding of friction engagement elements at the time of differential motion limitation can be reduced by completely engaging the first clutch and the second clutch without allowing them to slide. Thus, the differential motion limitation control can be realized without a need to increase the size of the first clutch and the second clutch.

Vehicular drive force distribution device

A driving force distribution and controlling apparatus and method for a vehicle is disclosed by which control interference which may occur between control by a driving force distribution mechanism and control by an antiskid brake system (ABS) is suppressed while the behavior of the vehicle is stabilized.

Driving force distribution and controlling apparatus for vehicle and driving force distribution and controlling method for vehicle

A hybrid powered vehicle of the present invention reduces the vibrations caused by changes in torque to thereby achieve excellent driving characteristics. The hybrid powered vehicle has an electric motor, an engine and a vehicle driving power source, which outputs a vehicle driving power from at least one of the engine and the electric motor in a plurality of driving modes including an electric motor single driving mode. A starting clutch capable of varying a torque transmission capacity is provided between the vehicle driving power source and drive wheels, and the torque transmission capacity of the starting clutch is controlled according to an output, which a driver requires from the vehicle driving power source. To start the engine while the vehicle is running in the electric motor single driving mode, a control means increases the output of the electric motor in such a manner that the amount of increase is controlled to be equal to or more than an output required for starting the engine in order to slip the starting clutch.

Hybrid powered vehicle

Growing community of inventors

Okazaki, Japan

Koji Ando