Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Aisin Aw Industries Co., Ltd.

Yosuke Michikoshi

Masashi Ikemura

Yukihiko Ideshio

Yuji Inoue

Akihiro Sato

Shingo Eto

Hirofumi Ota

Takeshi Torii

Satoshi Ito

Shintaro Goto

Mitsuhiro Toyoda

Yasuyuki Hagino

Daisuke Yamaoka

Atsushi Okuda

Tetsuya Yamauchi

Atsushige Kawasaka

A vehicle drive apparatus includes: a sleeve including a first peripheral surface provided side by side with a spline; a connecting member including a groove provided side by side with a spline in spline engagement with the spline, recessed radially relative to the first peripheral surface, and including a bottom surface that serves as a second peripheral surface facing the first peripheral surface; and a tolerance ring disposed in the groove so as to exert a radial elastic force between the sleeve and the connecting member.

Vehicle drive apparatus

A vehicular automatic transmission includes a plurality of engagement devices and a plurality of planetary gear sets. Each of the planetary gear sets includes rotating elements. At least one of the rotating elements of one of the plurality of planetary gear sets is coupled to one of the rotating elements of another planetary gear set or one of the engagement devices, via a spline engagement portion. The rotating elements other than the at least one of the rotating elements coupled via the spline engagement portion is coupled to another rotating element or a non-rotary member directly or via one of the engagement devices. The at least one of the rotating elements coupled via the spline engagement portion is configured to be co-rotated with no torque transmitted via the spline engagement portion, when the automatic transmission is placed in a predetermined gear position as one of the plurality of gear positions.

Vehicular automatic transmission

A control device for a vehicle includes an electronic control unit configured to control release of a predetermined engaging device configured to selectively engage a rotating member of a loaded part that participates in power transmission in a predetermined gear stage among a plurality of engaging devices with a rotating member of a non-loaded part that does not participate in the power transmission in the predetermined gear stage, at the time of selection of the predetermined gear stage of a stepped transmission, and control the predetermined engaging device such that an engagement pressure for bringing the predetermined engaging device into a weak slip state in a range that does not affect the selection of the predetermined gear stage is added, at the time of the selection of the predetermined gear stage and in a predetermined operational state.

Control device for vehicle

A control device of a vehicle has a drive source, a power transmission device having a plurality of rotating elements coupled via a gear and a plurality of friction engagement elements selectively coupling the plurality of rotating elements for transmitting an output of the drive source, and a lubricating device supplying a lubrication oil to the friction engagement elements for lubrication, the control device comprising: a lubrication control portion configured to increase an amount of the lubrication oil to the friction engagement elements from the lubricating device in a booming sound generating region predefined with respect to a drive source rotation speed.

Control device of vehicle

A control device of a vehicle includes an engine, an electric motor, and a first clutch connecting/disconnecting a power transmission path between the engine and the electric motor, and a second clutch configured to achieve a mechanically directly-coupled state of a power transmission path between the engine/the electric motor and drive wheels, the control device of a vehicle increasing a torque of the electric motor and causing the second clutch to slip-engage when the engine is started by controlling the first clutch toward engagement during motor running using only the electric motor as a drive force source for running with the first clutch released and the second clutch engaged, when the torque of the electric motor increased at the start of the engine relative to the torque of the electric motor during the motor running is larger, a slip amount of the second clutch being made larger as compared to when the torque is smaller.

Vehicle control device

A control device of a vehicle including an engine, an electric motor, and a clutch configured to achieve a mechanically directly-coupled state of a power transmission path between the engine/the electric motor and drive wheels, the control device causing the clutch to be slip-engaged or released when the engine is started during motor running in which only the electric motor is used as a drive force source for running with the clutch engaged, the control device being configured such that when the clutch is engaged during the motor running, an engagement pressure is made lower than an engagement pressure when the clutch is engaged during engine running in which at least the engine is used as a drive force source for running, and in the case of running with the clutch engaged, the engagement pressure of the clutch is constantly adjusted based on output torque of the electric motor during the motor running, while the engagement pressure of the clutch is not adjusted during the engine running.

Vehicle control apparatus

Growing community of inventors

Toyota, Japan

Yosuke Michikoshi