Toyota Jidosha Kabushiki Kaisha

Aisin-warner Kabushiki Kaisha

Aisin Aw Co., Ltd.

Aisin-warner Limited

Toyota Jidosha Kogyo Kabushiki Kaisha

Toyota Motor Corporation

Other

Aisin Seiki Kabushiki Kaisha

Aishin Aw Co., Ltd.

Nippondenso Co., Ltd.

Toyota Jidosha K.k.

Toyota Jidoshi Kabushiki Kaisha

Toyoda Jidosha Kabushiki Kaisha

Toyota Jidosha Kabuhsiki Kaisha

Toyota Jidsoha Kabushiki Kaisha

Yutaka Taga

Atsushi Tabata

Seitoku Kubo

Ryuji Ibaraki

Yasuo Hojo

Kunio Morisawa

Yoichi Hayakawa

Koji Sumiya

Hiroshi Hata

Kazumasa Tsukamoto

Shinya Nakamura

Tsuyoshi Mikami

Yoshiharu Harada

Yoshikazu Sakaguchi

Takuji Taniguchi

Masao Kawai

Kazuaki Watanabe

Masahiro Hayabuchi

Hidehiro Oba

Atsushi Kamada

Terufumi Miyazaki

Masahiko Ando

Yoshio Shindo

Yuji Kashihara

Yoshihisa Yamamoto

Kagenori Fukumura

Shuzo Moroto

Masaya Amano

Seiji Nakamura

Koji Noda

Kunihiro Iwatsuki

Kazunori Ishikawa

Yuji Inoue

Hideaki Matsui

Yukio Hamano

Masashi Hattori

Takeshi Inuzuka

Takayuki Okada

Koji Kobayashi

Masahiro Hasebe

Masato Kaigawa

Satoru Wakuta

Masahiro Kojima

Akira Hoshino

Masatoshi Adachi

Shuji Nagano

Takenori Kano

Shigeo Tsuzuki

Kenji Omote

Seiichi Nishikawa

Koji Maeda

Hiromi Hasegawa

Kazutoshi Motoike

Yoshito Takeshita

Masanori Kadotani

Keiichi Shinohara

Tooru Matsubara

Hiroshi Ito

Yuji Iwase

Hiroyuki Shioiri

Hiroshi Itoh

Eiji Yamada

Nobuaki Miki

Takao Taniguchi

Yasutomo Kawabata

Mitsuru Takada

Hideki Yasue

Hideo Tomomatsu

Masaaki Yamaoka

Hideaki Otsubo

Takafumi Inagaki

Hiroshi Arai

Daiki Suyama

Akio Numazawa

Shigeo Takahashi

Masao Saito

Toshifumi Takaoka

Mitsuhiro Umeyama

Kazumasa Nakamura

Yasunari Nakamura

Tetsuya Miura

Hiroaki Urano

Kojiro Kuramochi

Takao Miyatani

Norihiko Akao

Shigetaka Nagamatsu

Chihiro Hosono

Masakiyo Kojima

Takahiro Sakai

Kazuyuki Suzuki

Akihiko Kanamori

Kozo Kato

Haruki Takemoto

Isamu Minemoto

Satoshi Koide

Tetsuya Abe

Shinji Kasuga

Takashi Morimoto

Yoshinobu Iwase

Yoshiaki Taga, Deceased

A control device for a vehicle includes an electric motor disposed in a manner enabling power transmission to wheels; and a clutch device capable of interrupting and connecting a power transmission path between the wheels and the electric motor, if temperature of the electric motor exceeds predetermined temperature defined in advance, the electric motor being rotated after the power transmission path between the wheels and the electric motor is interrupted by the clutch device.

Control device for a vehicle

A drive apparatus for a vehicle includes a differential action limiting device for selectively switching a differential device in a differential state and a locked state, with the differential device and the differential action limiting device being disposed between a first electric motor and a second electric motor.

Drive apparatus for vehicle

A vehicular drive system switchable between a continuously-variable and step-variable shifting states, and a control device for controlling the vehicular drive system so as to reduce a shifting shock of an automatic transmission included in the drive system, which takes place due to an overlap control involving a switching control of the drive system and a shifting control of the automatic transmission. Execution-timing control meansis provided to command switching control meansand step-variable shifting control meansto sequentially execute a switching control by the switching control means to switch transmission mechanismbetween an electrically established continuously-variable shifting state and a step-variable shifting state, and a shifting control by the step-variable shifting control means to shift an automatic transmission portion, even when an overlap control involving the switching control and the shifting control is required, whereby the switching and shifting controls can be rapidly completed. Since the transmission mechanismis not switched during the shifting control of the automatic transmission portion, the input speed of the automatic transmission portionwill not change due to the switching control, apart from a change of the input speed as a result of the shifting control, making it possible to prevent the complicated shifting control and reduce the consequent shifting shock.

Control device for vehicular drive system

A control apparatus for a vehicular drive system arranged to electrically transmit a portion of an output force of an engine through an electric path. The control apparatus is configured to reduce loads of components associated with the electric path and to restrict a temperature rise of the components associated with the electric path, making it possible to reduce the required size of a cooling system. This is accomplished by placing a differential portion in a non-differential state or placing a switching clutch or switching brake in a partially engaged state when electrical energy through the electric path has increased to a thermal limit. As a result, the amount of generated electric energy is reduced, making it possible to restrict the temperature rise of the components associated with the electric path. Accordingly, the cooling system size can be reduced for these components.

Controller of driver for vehicle

A vehicular drive system accommodated in a housing and including a first input shaft that receives a vehicle drive force generated by a vehicle drive power source, and a differential mechanism operable to distribute the vehicle drive force received from the first input shaft to a first electric motor and a second input shaft. The first and second input shafts are disposed coaxially with a first axis such that the second input shaft is disposed downstream of the first input shaft. The first input shaft is rotatably supported by a first support portion provided on the housing and an axial end portion of the second input shaft, and the second input shaft is rotatably supported by a third support portion and a fourth support portion that are provided on the housing.

Vehicular drive system

When a sub transmission mechanism is switched to the LO-side gear stage, a hybrid control unit executes a control operation such that vehicle speed does not exceed limit vehicle speed determined in advance in accordance with the transmission gear ratio of LO-side gear stage. Specifically, the hybrid control unit reduces at least one of the driving torque generated by the engine and the second motor generator, so that rotation speed of the second motor generator does not exceed tolerable rotation speed. Further, the hybrid control unit reduces at least one of the driving torque generated by the engine and the second motor generator when any of temperatures respectively detected by temperature sensors exceed corresponding upper limit temperatures.

Hybrid driving apparatus with multistage transmission provided in power transmission path and control method thereof

A vehicle drive apparatus includes a first electric motor, a power distributing mechanism, a second electric motor, and a step-variable power transmission. A power transmitting portion includes a second case, accommodating the second electric motor and the automatic power transmission. One end of an input shaft of the automatic power transmission faces a drive apparatus output shaft, which is supported with a first support wall mounted on the second case, the second electric motor being accommodated in a compartment opposite to the automatic power transmission with respect to the first support wall, and one end of a second rotor supporting shaft of the second electric motor faces the automatic power transmission, which is supported with a second support wall mounted on the second case. The automatic power transmission and second electric motor can be unitized as one power transmitting portion, improving assembling workability of the drive apparatus.

Vehicular drive system which is small-sized and/or improved in its fuel economy. A power distributing mechanism, which is provided with a differential-state switching device in the form of a switching clutch Cand a switching brake B, is switchable by the switching device between a differential state (continuously-variable shifting state) in which the mechanism is operable as an electrically controlled continuously variable transmission, and a fixed-speed-ratio shifting state in which the mechanism is operable as a transmission having a fixed speed ratio or ratios. The power distributing mechanismis placed in the fixed-speed-ratio shifting state during a high-speed running of the vehicle or a high-speed operation of engine, so that the output of the engineis transmitted to drive wheelsprimarily through a mechanical power transmitting path, whereby fuel economy of the vehicle is improved owing to reduction of a loss of conversion of a mechanical energy into an electric energy. The mechanismis also placed in the fixed-speed-ratio shifting state during a high-output operation of the engine, so that the required electric reaction of first electric motor Mcan be reduced, whereby the required size of the first electric motor M, and the required size of the drive systemincluding the electric motor Mcan be reduced.

In a vehicle driving apparatus including a differential mechanism capable of executing a differential action, a control device can make the driving apparatus small-size, improve fuel consumption, and increase output torque. A transmission mechanism can be switched to a continuously variable shifting state and a step variable shifting state, by a switching clutch or a switching brake. Also, with a switch control bringing the switching clutch into a half-engaged state, during an engine startup/running, while the differential portion is allowed to operate as the electrically controlled continuously variable transmission, a reaction force against an engine torque is generated by the half-engaged switching clutch. Thus, the engine torque not less than the torque bearable by a first electric motor can be inputted into the differential portion, thereby increasing the output torque.

Control device for vehicle drive apparatus

A vehicle-starting-engine-torque restricting device is provided to restrict engine torque upon starting of a vehicle with an engine used as a vehicle drive power source, so that a required output of a first electric motor which generates a reaction force corresponding to the engine torque can be made smaller than when the engine torque is not restricted. Namely, the vehicle-starting-engine-torque restricting device eliminates a need of increasing the maximum output of the first electric motor to generate the reaction force corresponding to the engine torque, making it possible to reduce the required size of the first electric motor.

Controller apparatus for vehicular device system

A vehicular drive system including a first electric motor, a power distributing mechanism, and a second electric motor disposed on a first axis, and an automatic transmission portion disposed on a second axis parallel to the first axis, and a power transmitting member at an end of the first axis remote from an input rotary member and a rotary member at an end of the second axis remote from the input rotary member are connected to each other through a drive linkage, thereby a total axial dimension of the first electric motor, power distributing mechanism, and second electric motor and an axial dimension of the automatic transmission portion are substantially equal to each other, whereby the axial dimension of the drive system is reduced. A housing of the vehicular drive system includes mutually separate first, second, third, and fourth casing portions, so the drive system can be easily assembled.

Drive device for vehicle and method of assembling the same

A vehicular drive system which includes a first electric motor, a power distributing mechanism (first gear device), a second electric motor, and a step-variable automatic transmission (second gear device), and in which the first electric motor and the power distributing mechanism constitute a first unit, while the second electric motor and the automatic transmission constitute a second unit, and wherein the power distributing mechanism has an output shaft, and the automatic transmission has an input shaft which is connected to the output shaft, whereby a drive force can be transmitted between the first unit and the second unit. The individually prepared first unit and the second unit are assembled together into the vehicular drive system such that the output shaft of the power distributing mechanism and the input shaft of the automatic transmission are connected to each other. Accordingly, the drive system has an improved efficiency of assembling.

Drive device for vehicle

A rotor shaft of a first electric motor is connected to a crankshaft of the engine by being fit to a transmitting member that is coupled to the crankshaft. The stator and rotor shaft of the first electric motor are supported by a case housing the first electric motor.

Vehicle driving apparatus

Growing community of inventors

Aichi-gun, Japan

Yutaka Taga