Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Other

Aisin Seiki Kabushiki Kaisha

Aisin Corporation

Nsk-warner K.k.

Toyoda Iron Works Co., Ltd.

Aisin Takaoka Co., Ltd.

Aisin Kako Kabushiki Kaisha

Haruhisa Suzuki

Atsushi Tabata

Kiyonori Takagi

Atsushi Kawamoto

Koichi Okuda

Tatsuya Imamura

Hidehiko Banshoya

Toshiki Kanada

Yuji Yasuda

Kota Fujii

Hiroyuki Tateno

Masatoshi Adachi

Ryuji Ibaraki

Hiroshi Hata

Tomohiro Saeki

Masahiro Kojima

Mototaka Nakane

Tooru Matsubara

Kazuyuki Noda

Yoshimitsu Hyodo

Atsushi Mori

Kousuke Tanaka

Koichi Hasegawa

Kazuyuki Shiiba

Mikio Iwase

Takeshi Torii

Atsushi Hanawa

Yasuaki Tahara

Hiroki Takeda

Akira Iwano

Shinichi Nomura

Isao Sato

Koichi Miyamoto

Akihito Hongoya

Ryo Watanabe

Yoshiteru Hagino

Junji Matsushita

Yutaka Ohashi

Masabumi Nishigaya

Yoshinori Shibayama

Katsutoshi Shimizu

Ryohei Kubo

Hiroki Shintani

Akira Nonoyama

Hironari Toyoda

Kuniaki Ishii

Hiroshi Yoshikawa

Akira Matsuo

Junya Abe

Hideki Matsubo

Toshimichi Hiraki

Keijiro Oshima

Koji Takasu

Hidenori Nagaoka

Makoto Kaneso

Kamishima Hirofumi

Kouichi Kondou

Akihiro Makino

Aito Ide

Masahiko Kanamaru

Jo Torii

Tokiyoshi Kida

Hirofumi Kamishima

A driving force transmitting device includes a case, an electric motor, and a gearbox. The electric motor includes an output shaft. The gearbox includes a spur gear that rotates coaxially with the output shaft. The case includes a partition wall, a first accommodating chamber accommodating the electric motor, and a second accommodating chamber that accommodates a second driven gear. The partition separates the first accommodating chamber and the second accommodating chamber from each other. The partition wall includes a connecting hole that connects the first accommodating chamber and the second accommodating chamber to each other. The connecting hole is located on one direction side in relation to the central axis of the output shaft. At least part of the connecting hole overlaps with the spur gear when viewed in a direction along the central axis.

Driving force transmitting device

A manual unlocking device for a parking lock mechanism includes an operation lever that rotates when the parking lock mechanism is switched from a locked state to an unlocked state. The operation lever is arranged outside an occupant space of a vehicle cabin and is configured that a tool can be coupled to a rotation center thereof from the occupant space. The manual unlocking device for the parking lock mechanism is configured to switch the parking lock mechanism from the locked state to the unlocked state by integral rotation of the operation lever with the tool when the tool, which is coupled to the operation lever, rotates in a state where the tool is arranged on the rotation center of the operation lever.

Manual unlocking device for parking lock mechanism

A tolerance ring is arranged between an output-side rotary shaft and a rotor shaft. For this reason, even when looseness in a spline fitting portion of the output-side rotary shaft and rotor shaft is not filled, both the output-side rotary shaft and the rotor shaft are held by the tolerance ring so as not to rattle. Therefore, it is possible to reduce tooth hammer noise that occurs in the spline fitting portion. An output-side rotary shaft has oil passages for supplying lubricating oil to a tolerance ring. Lubricating oil is forcibly supplied through these oil passages to an annular space in which a tolerance ring is accommodated.

Power transmission system for vehicle

A control process including the following steps is executed. The control process includes, at the time of switching from series-parallel mode to series mode, a step of reducing an engine torque, a step of releasing a clutch, a step of reducing a reaction torque of a first rotary electric machine and a step of increasing a torque of a second rotary electric machine, and, when synchronization is started and a step of increasing a positive torque of the first MG, a step of starting engagement of a clutch, and, when a rotation speed of the first rotary electric machine and a rotation speed of an engine are synchronous with each other, a step of engaging the clutch.

Hybrid vehicle

A transmission unit is able to switch between a non-neutral state where power of an engine is transmitted via a path Kand a neutral state where power of the engine is not transmitted via the path K. A clutch is able to switch between an engaged state where power is transmitted from the engine to a first MG and a released state where transmission of power from the engine to the first MG is interrupted. When the transmission unit is controlled to the non-neutral state and, at the same time, the clutch is set to the released state, a vehicle is operable in series-parallel mode. When power is transmitted via the path Kby directly coupling the engine to the first MG by the clutch and the path Kis interrupted by controlling the transmission unit to the neutral state, the vehicle is operable in series mode.

Hybrid vehicle operable in series mode and in series-parallel mode

A power transmission apparatus includes a first electric motor, a power split mechanism, a second electric motor, a case, a support wall, and a breather mechanism. The case accommodates the first electric motor, the power split mechanism, and the second electric motor. The support wall is provided between the power split mechanism and the second electric motor. The breather mechanism is located in a rotational angle range that is at least equal to 90 degrees and is smaller than 180 degrees. The breather mechanism has a through hole and a breather chamber. The breather chamber is provided at a case inner side end of the through hole and is opened in a direction that does not oppose a virtual surface that passes through the rotational axis at a rotational angle of 90 degrees of the second electric motor.

Power transmission apparatus for vehicle

A tolerance ring is interposed between an output side rotary shaft and a rotor shaft. For this reason, even in a case where a backlash formed in a spline fitting portion between the output side rotary shaft and the rotor shaft is not eliminated, the rotary shafts of both of the output side rotary shaft and the rotor shaft are held by the tolerance ring without a backlash, and rattling noise can be suppressed. An oil supply groove for supplying a lubricant between an annular portion of the tolerance ring and the output side rotary shaft is provided inside an annular groove formed in the output side rotary shaft. With this, it is possible to suppress degradation of the durability of the tolerance ring without performing special processing on the tolerance ring.

Power transmission device for vehicle

A hybrid vehicle is able to select series-parallel mode by engaging a clutch (C) or a brake (B) and releasing a clutch (CS), and is able to select series mode by releasing both the clutch (C) and the brake (B) and engaging the clutch (CS). The hybrid vehicle includes a simultaneous supply prevention valve () that prevents simultaneous engagement of the clutch (CS) and at least one of the clutch (CI) or the brake (B). When a signal pressure of at least one of hydraulic pressure for engaging the clutch (C) or hydraulic pressure for engaging the brake (B) is input to the simultaneous supply prevention valve (), the simultaneous supply prevention valve () is switched to a state where supply of hydraulic pressure to the clutch (CS) is cut off.

A manual release device for a parking lock mechanism includes an operating lever, a cable and an idle motion mechanism. The idle motion mechanism includes a body portion, a lever provided on the body portion, a helical compression spring, and a contact portion provided on the shaft. The cable is coupled to the lever. A distal end of the lever is arranged below a turning center of the lever. The parking lock mechanism is configured, when the parking lock mechanism is in a locked state, to be switched into an unlocked state as the body portion contacts the contact portion to cause the shaft to turn when the lever is turned against an urging force of the urging member as a result of operation of the operating lever to cause the body portion to turn from the normal position to the actuated position.

Manual release device for parking lock mechanism

In a non-forward range, the same gear position as a forward first gear position is established in a stepped transmission. A hydraulic controller includes a second linear solenoid valve and third linear solenoid valve that respectively supply hydraulic pressure to a second clutch and first brake, and a selector valve that is provided in an oil passage upstream of the second and third linear solenoid valves and that switches between a state where hydraulic pressure is supplied to the oil passage and a state where supply of hydraulic pressure is cut off. When the non-forward range is set or when a vehicle is moving backward, the selector valve cuts off supply of hydraulic pressure to the oil passage. Thus, when there is a failure in the second or third linear solenoid valve, it is possible to suitably establish a gear position wherein the vehicle is not allowed to move backward.

Automatic transmission for vehicle

A hybrid vehicle includes an electronic control unit configured to, when the drive mode is changed from one of the series-parallel mode and the parallel mode to the other one of the series-parallel mode and the parallel mode and the speed stage is changed from one of the low speed stage and the high speed stage to the other one of the low speed stage and the high speed stage, selectively execute either one of a first control and a second control. The first control is control in which the drive mode and the speed stage are changed by passing through the series mode. The second control is control in which one of the drive mode and the speed stage is changed and then the other one of the drive mode and the speed stage is changed without passing through the series mode.

A hydraulic pressure control device of a vehicle driving device, the hydraulic pressure control device includes a range switcher having a first signal solenoid valve capable of supplying a first signal pressure and a spool switchable between a first position reached via the first signal pressure and a second position reached via a biasing force of a biasing member.

Hydraulic pressure control device of vehicle driving device

A tolerance ring is arranged between an output-side rotary shaft and a rotor shaft. For this reason, even when looseness in a spline fitting portion of the output-side rotary shaft and rotor shaft is not filled, both the output-side rotary shaft and the rotor shaft are held by the tolerance ring so as not to rattle. Therefore, it is possible to reduce tooth hammer noise that occurs in the spline fitting portion.

A hybrid vehicle includes an engine (), a first motor generator (MG), a second motor generator (MG), a transmission unit (power transmission unit) (), a differential unit (), a clutch (CS) and a mechanical oil pump (). The hybrid vehicle is able to switch between series-parallel mode in which power of the engine is transmitted via the transmission unit and the differential unit and series mode in which power of the engine is transmitted via the clutch. The differential unit () is a planetary gear mechanism including a sun gear (S) connected to the first motor generator (MG), a ring gear (R) connected to the second motor generator (MG), and a carrier (CA) connected to a ring gear (R) that is an output element of the transmission unit (). The mechanical oil pump () is driven by power that is transmitted from the carrier (CA) of the differential unit.

Growing community of inventors

Nagoya, Japan

Haruhisa Suzuki