Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Aisin Corporation

Yosuke Suzuki

Yuji Iwase

Kensei Hata

Seitaro Nobuyasu

Koichi Kato

Taro Moteki

Hideaki Komada

Takahito Endo

Hirotatsu Kitabatake

Tomohito Ono

Akiko Nishimine

Hirotsugu Yoshino

Sohei Murata

Terufumi Miyazaki

Akira Murakami

Michitaka Tsuchida

Makoto Funahashi

Hiroki Yasui

Hiroto Hashimoto

Hidekazu Nagai

Isamu Shiotsu

Makoto Taniguchi

Tatsuya Imamura

Hiromichi Kimura

Hiroyuki Shioiri

Takashi Kawai

Takeshi Kitahata

Yuta Oshiro

Yasuhiro Oshiumi

Masafumi Yamamoto

Tatsuo Obata

Takeshi Kuwahara

Sou Okita

Daisuke Shirai

Koichi Watanabe

Suguru Hirai

Yoshitaka Murata

Tsuyoshi Ide

Shojiro Oya

A first rotation shaft (which is provided with a first gear) is assembled to a first case member so as to provide a first assembly. A second rotation shaft (which is provided with a second gear) and a third rotation shaft (which is provided with a third gear) are assembled to a support member so as to provide a second assembly. When the second assembly is assembled to the first assembly, the second assembly is rotatable around a third axis from a first position where the first gear and the second gear are located away from each other to a second position where the first gear and the second gear are in mesh with each other, and is positioned at the second position by using a positioning member.

Vehicle drive apparatus and vehicle drive apparatus manufacturing method

A shift mechanism switches power transmission paths among a first transmission shaft, a second transmission shaft, and a third transmission shaft that are concentrically arranged on a rotational axis. The shift mechanism has a drive drum that is provided so as to be coaxial with the rotational axis and pivotable about the rotational axis, and a first driven drum and a second driven drum that are arranged on the rotational axis so as to be concentric with the drive drum and move along the rotational axis as the drive drum pivots. As the first driven drum moves, a first shift sleeve advances and retreats, and the first transmission shaft and the second transmission shaft are connected and disconnected. In addition, as the second driven drum moves, a second shift sleeve advances and retreats, and the second transmission shaft and the third transmission shaft are connected and disconnected.

Shift mechanism for power transmission device

If the destination has not been input, it is judged whether the present location is on the expressway (step S). If the judgement result of the step Sis positive, it is judged whether or not the actual SOC is less than or equal to the threshold TH(step S). If the judgement result of the step Sis positive, the restoring control is executed (step S). Subsequent to the step Sor S, it is judged whether or not the vehicle is still on the expressway (step S). If the judgement result of the step Sis positive, it is judged whether or not the actual SOC is greater than or equal to the SOC_T(step S). If the judgement result of the step Sis positive, the maintaining control is executed (step S).

Control system for vehicle

A control system for a hybrid vehicle that shift an operating mode to an appropriate mode from a low mode or high mode. The hybrid vehicle comprises a power split mechanism connected to an engine and a first motor. When a required brake torque of a prime mover cannot be achieved during propulsion in an operating mode established by engaging one of clutches while stopping the engine, the control system excites a motoring of the engine by the first motor while maintaining engagement of the clutch engaged to establish the current operating mode.

Control system for hybrid vehicles

A charge control system for a vehicle, which is configured to control charging of a power storage device, includes a user detector that determines whether a user is present within a predetermined range relative to the vehicle, and a vehicle electronic control unit configured to permit the power storage device to be charged with electric power generated by the generator, in addition to the power from the outside of the vehicle, during external charging, when the user detector determines that the user is present within the predetermined range. The vehicle ECU is configured to inhibit power generation by the generator during external charging when the user detector determines that the user is not present within the predetermined range.

Charge control system for vehicle

A control system for a vehicle that prevents an unintentional mode change when a command signal cannot be transmitted to an engagement device. In the vehicle, HV-Lo mode is established by connecting a carrier to a carrier by a first clutch while disconnecting the carrier from a ring gear by a second clutch, and HV-Lo mode is established by disconnecting the carrier from the carrier by the first clutch while connecting the carrier to the ring gear by the second clutch. A normally stay clutch is used as at least one of the first clutch and the second clutch.

Drive force control system for vehicle

A power transmission apparatus includes a first meshing engagement mechanism that selectively couples a first rotational section and a second rotational section; and a second meshing engagement mechanism that selectively couples a third rotational section and a fourth rotational section. The first meshing engagement mechanism includes a first movable member provided with third meshing teeth that mesh with first meshing teeth provided on one of the first and the second rotational sections. The second meshing engagement mechanism includes a second movable member provided with fourth meshing teeth that mesh with second meshing teeth provided on one of the third and the fourth rotational sections. At least a portion of a first movable region of the third meshing teeth and at least a portion of a second movable region of the fourth meshing teeth overlap with each other in a radial direction with respect to a rotational axis.

Power transmission apparatus

Provided is a control apparatus for a hybrid vehicle, a clutch being provided in a power transmission path leading from an engine to drive wheels, the clutch transmitting torque between the engine and the drive wheels when engaged, the clutch interrupting the transmission of torque between the engine and the drive wheels, the control apparatus including an ECU configured to execute drive control for consuming electric power of a storage device by driving a first motor, when the clutch is kept in a released state and the clutch cannot be engaged and an amount of electrical charge of the storage device is higher than a prescribed first threshold value.

Control apparatus and control method for hybrid vehicle

An installation structure of a one-way clutch in which torque transmission is limited to one direction includes a flywheel, first and second rotary structures, housing and stopper plates, and a rivet. The first rotary structure is arranged coaxially with the flywheel while connected to an engine block. The second rotary structure is arranged coaxially with the first rotary structure while connected to the flywheel. The housing plate is disposed between the flywheel and the first and second rotary structures and arranged coaxially while connected to the second rotary structure. The stopper plate is attached to the second rotary structure to hold first rotary structure with the housing plate. The rivet fastens the stopper plate, the second rotary structure, and the housing plate. A first clearance between one face of the flywheel and a top face of a head of the rivet is narrower than a thickness of the stopper plate.

Installation structure of one-way clutch

A drive unit for a hybrid-vehicle to realize a variety of drive modes for covering various running conditions. A first planetary gear unit is included of a first carrier, a first sun gear, and a first ring gear. A second planetary gear unit is included of a second carrier, a second sun gear, and a second ring gear. A first clutch connects the engine selectively with the first carrier. A first motor is connected with the first sun gear, the second motor is connected with the second sun gear, and the first ring gear and the second ring gear are individually connected with an output member. The drive unit is with a second clutch for connecting the first carrier selectively with the second sun gear. In the drive unit, a reverse stage fixing-mode to propel the vehicle backwardly while changes the output member speed in accordance with the engine speed.

Drive unit for a hybrid vehicle

A control apparatus for controlling a hybrid vehicle having a planetary gear train including a first gear coupled to a first rotating electrical machine, a carrier coupled to an input shaft having an ejecting hole, the input shaft being coupled to an engine shaft of an engine via a torque limiting mechanism which allows the input shaft to skid against the engine shaft depending on a variation of torque between the input shaft and the engine shaft, and a second gear coupled to a drive shaft which is coupled to a second rotating electrical machine, and a rotation limiting mechanism which prevents the engine shaft from rotating in another direction, drives the first rotating electrical machine to output torque for rotating the input shaft in the another direction when the ejecting hole with the engine stopped does not extend in a predetermined direction in which the ejecting hole can eject oil to a mechanism portion of the planetary gear train which locates vertically above the input shaft.

Control apparatus for hybrid vehicle

In a control system and a control method, an electronic control unit is configured to crank an engine by setting a clutch to a half engaged state in a state where operation of the engine is stopped during traveling. The half engaged state is a state where the clutch is engaged with a slip. The electronic control unit is configured to, after a rotation speed of the engine has reached an ignition permission rotation speed or higher, increase a transmitted torque capacity of the clutch to a transmitted torque capacity that satisfies the following conditions i) and ii): i) the transmitted torque capacity is larger than a transmitted torque capacity before the rotation speed of the engine has reached the ignition permission rotation speed; and ii) the transmitted torque capacity allows the clutch to be kept in the half engaged state.

Control system and control method

A drive control system for preventing damage from a power distribution device under a motor mode and for improving fuel efficiency. A time duration from termination of the first operating mode where a torque of the first motor is applied to the power distribution device while halting a carrier (at step S), and a temperature of the power distribution device is estimated based on the calculated time duration (at step S). The first operating mode is enabled if the estimated temperature is lower than a predetermined allowable temperature (at step S), and inhibited if the estimated temperature is higher than the allowable temperature (at step S).

Drive control system for hybrid vehicle

A control system for hybrid vehicle for extending a possible travelling distance of the vehicle in the event of clutch failure is provided. The control system is configured to select a first drive mode in which the vehicle is powered by an engine in case an estimated torque transmitting capacity of the clutch in trouble is larger than a first threshold value, and to select a second drive mode in which the vehicle is powered by a motor in case the estimated torque transmitting capacity of the clutch in trouble is smaller than the first threshold value. The control system is further configured to reduce an engine torque to be smaller than the estimated torque transmitting capacity of the clutch in case the first drive mode is selected.

Control system for hybrid vehicle

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Susono, Japan

Yosuke Suzuki