Toyota Jidosha Kabushiki Kaisha

Aisin Corporation

Aisin Aw Co., Ltd.

Aisin Aw Industries Co., Ltd.

Masashi Ikemura

Kenji Dozono

Takeru Morita

Tatsuya Okishima

Yosuke Michikoshi

Shigeki Ideue

Yukihiko Ideshio

Toshihiko Kamiya

Tetsuya Yamaguchi

Takeshi Torii

Guodong Tan

Keita Inda

Akinori Ozawa

Takao Oki

Yoshio Hasegawa

Yuta Watanabe

Masaru Morise

Hirofumi Ota

Naoki Kato

Masamichi Yamaguchi

Satoshi Ito

Shinji Oita

Kazuaki Nakamura

Shinichi Ito

Akira Miyazaki

Shintaro Goto

Takeshi Ishiwada

Hiroshi Ota

Mitsuhiro Toyoda

Ken Shimizu

Hiroki Goshima

Fuminori Monji

Yasuyuki Hagino

Hikaru Sugiura

Keisuke Tanaka

Daisuke Yamaoka

Tadanori Fujii

Yuhi Hayakawa

Takashi Iijima

Ryota Yoshimoto

Atsushi Okuda

Guo Dong Tan

Ren Okazawa

Tetsuya Yamauchi

Atsushige Kawasaka

Hiroyuki Ogasawara

Tatuya Ishiguro

Kenji Douzono

The control device of the vehicle performs slip control for engaging the connection and disconnection clutch as an instruction hydraulic pressure for engaging the connection and disconnection clutch by the hydraulic control mechanism after the internal combustion engine is started by the starter, as an instruction hydraulic pressure for maintaining the speed of the internal combustion engine at a higher speed than a lower limit speed for avoiding the stop of the internal combustion engine. Further, the control device of the vehicle performs engagement completion control of raising an instruction hydraulic pressure for engaging the connection and disconnection clutch from an instruction hydraulic pressure in the slip control to an instruction hydraulic pressure for completing engagement of the connection and disconnection clutch when a difference between the speed of the internal combustion engine and the speed of the electric motor becomes smaller than a preset threshold value.

Control device for vehicle

A motor attachment structure for an electric vehicle includes: a motor generator including a tubular rotor configured to rotate together with a motor output shaft in an integrated manner, and a tubular stator placed radially outwardly from the rotor; a tubular bearing configured to rotatably support a rotating body rotating together with the motor output shaft in an integrated manner; a case in which the motor generator and the bearing are accommodated; and an attachment attached to the case. The attachment supports an outer peripheral surface of the bearing.

Motor attachment structure for electric vehicle

A hybrid drive device including a rotary electric machine having a stator and a rotor, a transmission coupled to the rotary electric machine, a clutch that couples an engine and the rotary electric machine and that releases a connection of the two, and a case for housing the rotary electric machine and the clutch, the hybrid drive device including: a first transmitting shaft coupled to an output shaft of the engine; a second transmitting shaft that transmits power from the rotor of the rotary electric machine to the transmission; and a rotor support member that supports the rotor of the rotary electric machine.

Hybrid drive device

A rotary electric machine rotor includes a rotor core and a core support member that supports the rotor core. The core support member includes a tubular portion formed in a tubular shape and a support portion supported so as to be rotatable with respect to a non-rotary member to support the tubular portion from the inner side in a radial direction. The core support member is formed such that a diameter of a fitting surface portion in a specific region, which includes an overlapping region which overlaps a connection region as viewed in the radial direction, is smaller than a diameter of the fitting surface portion in a general region which is a region other than the specific region.

Manufacturing method for rotary electric machine rotor

A vehicle includes: a motor generator as a drive source; an automatic transmission via which the motor generator is connected to driving wheels, the automatic transmission being configured to change a gear ratio; and a shift actuator for a driver to operate the gear ratio of the automatic transmission. A control device for the vehicle includes: a motor controlling portion configured to control output torque of the motor generator; and a gear shift controlling portion configured to control the gear ratio of the automatic transmission. In a case where the output torque has a negative value, when downshift is not requested by an operation on the shift actuator, the gear shift controlling portion prohibits a downshift process of downshifting the gear ratio of the automatic transmission, but when downshift is requested by an operation on the shift actuator, the gear shift controlling portion permits execution of the downshift process.

A friction engagement device includes an elastic member between a piston and a friction plate in an axial direction. Elastic member includes: second engaged portion to be brought into engagement with engagement portion of tubular member so as to be movable in axial direction; and annular plate portion sandwiched between pressing surface of piston and friction plate from both sides in axial direction. Surface of annular plate portion facing first axial side is provided with projection and recess arranged alternately in circumferential direction. Assuming that a phase where radial groove provided in pressing surface and projection provided on annular plate portion are located at corresponding positions in circumferential direction is a particular phase, engagement portion of tubular member, first engaged portion of piston, and second engaged portion of elastic member are formed such that piston and elastic member are unable to come into engagement with tubular member at particular phase.

Friction engagement device

A hybrid drive device includes: a rotor; a transmission; and a case, in which a rotor support member that supports a rotor of the rotary electric machine includes an annular member that faces an end wall portion of the case, the end wall portion includes a first tubular portion that protrudes in an axial direction from an inner periphery toward the transmission, and a second tubular portion that protrudes in the axial direction toward the transmission so as to surround the first tubular portion, the annular member includes a tubular portion that protrudes in the axial direction from an inner periphery toward an engine, an inner side radial bearing is disposed between the first transmitting shaft and an inner peripheral surface of the first tubular portion of the end wall portion, a clearance is formed between an outer peripheral surface of the first tubular portion of the end wall portion and an inner peripheral surface of the tubular portion of the annular member, and an outer side radial bearing is disposed between an outer peripheral surface of the tubular portion of the annular member and an inner peripheral surface of the second tubular portion of the end wall portion. As a result, the durability of the bearing for supporting the rotor of the rotary electric machine in the radial direction can be further improved.

A vehicle drive apparatus includes: a first bearing disposed between a rotor support member and a case in a radial direction so as to restrict movement of the rotor support member to a first axial side relative to the case; and a second bearing disposed between a connecting shaft and the case in an axial direction so as to restrict movement of the connecting shaft to a second axial side relative to the case. A fluid transmission device is disposed on the first axial side relative to the connecting shaft. The rotor support member includes a tubular portion having a tubular shape extending in the axial direction and fitted to an outer peripheral surface of the connecting shaft. Movement of the connecting shaft to the first axial side relative to the tubular portion is restricted.

Vehicle drive apparatus

A hybrid drive device including a rotary electric machine having a stator and a rotor, a transmission coupled to the rotary electric machine, a clutch that couples an engine and the rotary electric machine and that releases a connection of the two, and a case for housing the rotary electric machine and the clutch, the hybrid drive device including: a first transmitting shaft coupled to an output shaft of the engine; and a second transmitting shaft that transmits power from the rotor of the rotary electric machine to the transmission.

A vehicle drive device that includes a rotary electric machine that serves as a driving force source for wheels; a first rotation member coupled to a rotor of the rotary electric machine; and a fluid coupling that is disposed on an axial first side, which is one side in an axial direction with respect to the rotary electric machine, and that has a rotation housing.

Vehicle drive device

A breather device that communicates an inside of a case with an outside of the case in a vertical direction includes a cylindrical body having a hollow portion that extends in the vertical direction, a stopper inserted in the hollow portion, and a blocking body that is located in a space defined by the stopper in the hollow portion, and blocks a communicating hole provided in a lower part of the cylindrical body as viewed in the vertical direction. The communicating hole ceases to be blocked when the pressure inside the case exceeds a first predetermined value, and the blocking body moves upward in the vertical direction in the space.

Breather device

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.

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.

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

Growing community of inventors

Toyota, Japan

Masashi Ikemura