Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Tomoyuki Maruyama

Takeshi Miyagawa

Norihiro Yamamura

Akiko Nishimine

Akihiro Sato

Tetsuo Hori

Koji Hayashi

Takeshi Kanayama

Tomoaki Furukawa

Ryoki Il

Tomohito Ono

Ryoki Ii

Yuji Iwase

Ryuji Ibaraki

Satoru Wakuta

Kazuhisa Ozaki

Masatoshi Adachi

Hiroaki Kiyokami

Koki Ueno

Hiroki Kuwamoto

Kenji Odaka

Satoru Takahashi

Yoshitaka Suzuki

Tatsushi Takenaka

Nobuyuki Nagashima

Masato Fujikawa

Koichi Kondo

Kazuhito Enomoto

Yumi Iraha

Satoshi Kasamai

Tetsuro Kuzuya

Kiyotomo Mirua

A drive control device for a hybrid vehicle is provided with a differential device having four rotary elements. One of the four rotary elements is constituted by rotary components of each of a first and a second differential mechanisms selectively connected to each other through a clutch. One of the rotary components of said first and second differential mechanisms selectively connected through said clutch is selectively fixed to a stationary member through a brake. The drive control device comprises a brake engagement control portion configured to place the brake in an engaged state upon starting an engine, and an electric motor operation control portion configured to operate a first electric motor to raise a speed of a rotary motion of the engine for starting of the engine and to operate a second electric motor to reduce a reaction force during starting of said engine acting on an output rotary member.

Drive control device for hybrid vehicle

A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device comprises: an engine stop control portion configured to control the first and second electric motors so as to generate torques in respective opposite directions when the engine is required to be stopped during running of the hybrid vehicle in an engine drive mode in which the clutch is placed in an engaged state, the engine stop control portion reversing the directions of the torques generated by the first and second electric motors while the hybrid vehicle is in a coasting run, with respect to those generated while the hybrid vehicle is in a positive driving run.

Hybrid vehicle drive control device

A control apparatus for a hybrid vehicle drive system includes: a differential device including first and second differential mechanisms and four rotary components; and an engine, first and second electric motors, and an output rotary member respectively connected to said four rotary components. One of said four rotary components is constituted by a rotary element of said first differential mechanism and a rotary element of said second differential mechanism selectively connected to each other through a clutch, while one of said rotary elements of said first and second differential mechanisms is selectively connected to a stationary member through a brake. The control apparatus includes a drive mode switching control portion for switching the hybrid vehicle drive system to one of at least two hybrid drive modes according to a selected one of different combinations of operating states of said clutch and said brake.

Control apparatus for a hybrid vehicle drive system

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

This control device is applied to a hybrid vehicle that is provided with a motor lock mechanism that changes over the state of a power distribution mechanism between a differentiating state in which a differentially rotating state between an engine and a first motor-generator is permitted, and a non-differentiating state in which the rotation of the first motor-generator is prohibited. The control device stops combustion by the engine and changes over to an EV mode when predetermined conditions become valid during implementation by the power distribution mechanism of a differentiating mode of the differentiating state or of a non-differentiating mode of the non-differentiating state. The condition is set to be more severe while the non-differentiating mode is being implemented, as compared with the case while the differentiating mode is being implemented.

Control device for 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 drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, a first electric motor, a second electric motor and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device comprises: a reverse drive control portion configured to operate the first electric motor so as to generate a positive torque and operate the second electric motor so as to generate a negative torque, with the clutch being placed in the engaged state, to run the hybrid vehicle in a reverse direction.

A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components of the first and second differential mechanisms which are selectively connected to each other through the clutch is selectively fixed to a stationary member through a brake. The drive control device comprises: an electric motor operation control portion configured to control the second electric motor for starting the engine with an output torque of the second electric motor, when a reaction force is exerted on the first and second electric motors.

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

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 hybrid vehicleincludes as drive sources an internal combustion engineto which fuel stored in a fuel tankis supplied, and a second M/Gto which electricity stored in a batteryis supplied. The vehiclealso includes a battery chargerfor charging the batteryfrom the outside of the vehicleFor each of a plurality of refuelings to the fuel tankthe history of the time of refueling and the amount of refueling are stored. Based on the history, the degree of deterioration of fuel in the fuel tankis calculated.

Control apparatus of hybrid vehicle

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.

Growing community of inventors

Tajimi, Japan

Tomoyuki Maruyama