Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Takeshi Kanayama

Koji Hayashi

Akihiro Sato

Takeshi Miyagawa

Akiko Nishimine

Tetsuo Hori

Tomoyuki Maruyama

Norihiro Yamamura

Tomoaki Furukawa

Ryoki Il

Masatoshi Ito

Kazuyuki Shiiba

Tsuyoshi Mikami

Shinichiro Suenaga

Daiki Sato

Ryoki Ii

Daigo Ando

Koki Ueno

Fumikazu Satou

Masato Watanabe

Tomoo Atarashi

Masataka Sugiyama

Yasuo Shimizu

Taiyo Uejima

Masato Nakano

Taku Harada

Koichi Ichikawa

Takamasa Takeuchi

Satoru Takahashi

Eiji Yanagida

Koichi Kondo

Yosuke Kato

Nobuhito Mori

Noritaka Nakajima

Norihiro Mae

Kouki Kawamoto

Talyo Uejima

A controller for a vehicle is provided. One of a prime mover that drives a front wheel and a prime mover that drives a rear wheel is referred to as a first prime mover, and the other one is referred to as a second prime mover. The controller generates, when a required torque required for a drive wheel of the vehicle is a braking torque, the braking torque from the first prime mover. The controller limits, when the required torque changes from the braking torque to a driving torque, an increase in the driving torque generated from the first prime mover during a set period. The controller generates, from the second prime mover that does not generate the braking torque, the driving torque required during execution of the torque limit process.

Controller and control method for vehicle

There is provided a hybrid vehicle comprising a mode selection device configured to select one drive mode among a plurality of drive modes according to a user's operation. The plurality of drive modes include a first drive mode in which the hybrid vehicle is driven with power from a motor with stopping rotation of an engine and a second drive mode in which the hybrid vehicle is driven with rotation of the engine. On satisfaction of filter regeneration conditions that an accumulated amount of particulate matter accumulated on a filter is equal to or greater than a predetermined accumulated amount and that a temperature of the filter is equal to or higher than a predetermined temperature, the hybrid vehicle is driven in the second drive mode even when the first drive mode is selected by the mode selection device.

Hybrid vehicle including a mode selection device

In a vertical through hole of a rotational shaft, a first protrusion portion and a second protrusion portion protruding from an inner peripheral surface of the vertical through hole are provided in an axial direction of the through hole to form a storage area for storing oil, and discharge holes for directly discharging oil flowing over the first protrusion portion into the transaxle casing are provided in parallel with cooling holes.

Cooling system for motor

The control device of the present invention causes an engine to perform both partial cylinder operation and also all-cylinder operation, and moreover changes the operating point of the engine when the motor torque of a second motor-generator enters into operating point changeover ranges Rand R. The operating point changeover range Rwhen the engine is performing partial cylinder operation is set to be wider, as compared to the operating point changeover range Rwhen the engine is performing all-cylinder operation.

Control device for hybrid vehicle

A vehicle control apparatus configured to selectively establish one of a first drive state in which a vehicle drive force is generated primarily by a second motor/generator operated with an electric energy supplied from an electric-energy storage device while an engine is placed in a rest state, and a second drive state in which a first motor/generator is operated with a drive force of the engine, to generate an electric energy and in which the vehicle drive force is generated primarily by the second motor/generator operated with at least the electric energy generated by the first motor/generator. The vehicle control apparatus is further configured such that the vehicle drive force generated in the second drive state at a given value of an accelerator pedal operation amount &#x3b8;acc is larger than that generated in the first drive state.

Control apparatus for hybrid vehicle

It is provided a control device of a hybrid vehicle having a damper device disposed in a power transmission path between an engine and an electric motor, the damper device having different torsion characteristics between torsion in positive direction in which drive power is transmitted from the engine toward the electric motor and torsion in negative direction in which drive power is transmitted from the electric motor toward the engine, the control device being configured to increase rotation of the engine with the electric motor to start the engine, the torsion characteristic in the negative direction of the damper device including a plurality of torsion characteristics having torsional rigidity varying depending on an angle of the torsion, and at start of the engine, the plurality of torsion characteristics being selectively used depending on an engine rotation speed to increase the engine rotation speed.

Control device of hybrid vehicle

A control device of a vehicle includes: an engine; a connection/disconnection device configured to connect/interrupt the engine; a rotating machine disposed to enable transmission of drive power to the wheels; and a running position selection device, the control device including a first manual mode selected by performing a deceleration increasing operation by a driver for increasing vehicle deceleration while the automatic running position is selected and a second manual mode selected by performing a deceleration increasing operation by a driver for increasing the vehicle deceleration while the manual running position is selected, while the vehicle is running with the engine interrupted from the wheels, if the first manual mode is selected, the vehicle deceleration being generated only by the rotating machine, and if the second manual mode is selected, the connection/disconnection device being put into the connected state to generate the vehicle deceleration at least by the engine.

Control device of vehicle

A vehicular indicator device for a hybrid vehicle which is provided with vehicle drive power sources in the form of an engine and an electric motor and which is driven in one of a plurality of vehicle drive modes including an EV drive mode, a series HV drive mode and a parallel HV drive mode that is automatically selected according to a vehicle drive power, said indicator device being configured to indicate the selected vehicle drive mode and said vehicle drive power, the vehicular indicator device being configured to indicate a running state of the hybrid vehicle as represented by said vehicle drive power and said selected vehicle drive mode, in a two-dimensional coordinate system on a display screen, which coordinate system is defined by said vehicle drive power and said selected vehicle drive mode.

Vehicle display device

A control apparatus for a hybrid vehicle includes: engine starting means for starting an engine when a need for switching to a 4-wheel drive mode has been forecasted, the hybrid vehicle having a series HV drive mode in which the hybrid vehicle is run with a second electric motor, in the released state of a connecting/disconnecting device, while a first electric motor is operated with a drive force of said engine to generate an electric energy, the control apparatus further including, as said engine starting means, series HV drive controlling means for starting said engine and enlarging a series HV drive mode region for running the hybrid vehicle in said series HV drive mode, so as to cover a portion or an entirety of an original EV drive mode region for running the hybrid vehicle in said EV drive mode, when the need for switching to said 4-wheel drive mode has been forecasted.

A vehicle hybrid drive device having an EV running mode enabling a vehicle to run only with a second rotating machine used as a drive power source while an engine is disconnected from a drive power transmission path, a series HEV running mode enabling the vehicle to run only with the second rotating machine used as the drive power source while a first rotating machine is rotationally driven to generate electricity by the engine disconnected from the drive power transmission path, and a parallel HEV running mode enabling the vehicle to run with the engine and at least one of the first and second rotating machines used as the drive power sources while the engine is connected to the drive power transmission path. If a driver desires power-performance-oriented running or fuel-efficiency-oriented running, the range for selecting the series HEV running mode is made narrower or wider, respectively, than usual.

Vehicle hybrid drive device

It is provided a control device of a vehicle drive device having an electric motor connected via an inverter to an electric-motor power source, an inverter smoothing capacitor connected to the inverter of the electric-motor power source side thereof, and a transmission making up a portion of a power transmission path between the electric motor and drive wheels, the control device being configured to make an output torque of the electric motor smaller as the rotation speed of the electric motor being higher, and to make a gradient of an output torque reduced amount of the electric motor larger as the rotation speed of the electric motor being higher if a rotation speed of the electric motor rises at the time of upshift of the transmission higher than a rotation speed before the shift.

Control device of vehicle drive device

Providing a control apparatus for a vehicular drive system, which is configured to implement a torque reduction control during a shifting action of an automatic transmission, and which permits reduction of the size and cost of an electric circuit including a smoothing capacitor. An electricity-generation-amount-variation restricting region Ais predetermined such that a point of a vehicle running state lies in the electricity-generation-amount-variation restricting region Aprior to a moment of determination to perform a shifting action of the automatic transmission, and electricity-generation-amount-variation restricting meansimplements an electricity-generation-amount-variation restricting control to restrict a rate of increase of a total amount of an electric energy generated by first and second electric motors MGand MG, to a predetermined upper limit value LT, when the point of the vehicle running state has moved into the electricity-generation-amount-variation restricting region A. Accordingly, it is possible to prevent an abrupt increase of the total amount of the electric energy generated by the first and second electric motors MGand MGprior to a torque reduction control to be implemented during the shifting action of the automatic transmission. As a result, the amount of a surplus electric energy can be reduced, so that a required electrostatic capacity of the inverter smoothing capacitorcan be reduced. Namely, the size and cost of an electric power source control circuitincluding the inverter smoothing capacitorcan be reduced.

Control apparatus for vehicular drive system

A hybrid drive system configured to selectively establish one of a first drive mode in which a first motor/generator MGis operated with a drive force of an engine, to generate an electric energy and in which a vehicle drive force is generated primarily by a second motor/generator MG, and a second drive mode in which the vehicle drive force is generated by the engine, and at least one of the first motor/generator MGand second motor/generator MGis operated to generate an assisting vehicle drive force, as needed, and further configured such that an amount of a working oil to be supplied to the first motor/generator MGis larger in the first drive mode than in the second drive mode, permitting sufficient cooling of the electric motor depending upon a selected one of the vehicle drive modes.

Vehicular hybrid drive system

A vehicle hybrid drive device includes: a first rotating machine coupled to an engine; a connection/disconnection device capable of connecting/disconnecting the engine and the first rotating machine to/from wheels; and a second rotating machine disposed in a manner enabling transmission of drive power to the wheels, the vehicle hybrid drive device enabling a vehicle to run in two running modes of an EV running mode enabling the vehicle to run with the second rotating machine used as a drive power source while the connection/disconnection device is disconnected, and a parallel HEV running mode enabling the vehicle to run with the engine and at least one of the first and second rotating machines as the drive power sources while the connection/disconnection device is connected.

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Toyota, Japan

Takeshi Kanayama