Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Tomohito Ono

Yuji Iwase

Hiroto Hashimoto

Yukihiko Ideshio

Takahito Endo

Yosuke Suzuki

Hiroaki Kimura

Koji Hayashi

Hiroyuki Ishii

Hiroyasu Harada

Hideaki Komada

Kensei Hata

Hiroaki Ebuchi

Hirotatsu Kitabatake

Atsushi Tabata

Tooru Matsubara

Tatsuya Imamura

Makoto Funahashi

Masato Terashima

Hiromichi Kimura

Hiroyuki Shibata

Tomoyuki Maruyama

Koichi Okuda

Terufumi Miyazaki

Takeshi Kitahata

Hideki Sano

Shigeru Okuwaki

Hiroki Kuwamoto

Hiroki Iguma

Michinobu Suzuki

Daisuke Shirai

Hiroshi Kato

Akira Murakami

Takashi Amano

Takashi Matsumoto

Hiroaki Kiyokami

Koki Ueno

Yoshihito Kanno

Seiji Masunaga

Takeshi Miyagawa

Norihiro Yamamura

Masayuki Ikemoto

Takuya Kodama

Satoru Takahashi

Yoshiteru Hagino

Yoshitaka Suzuki

Yoshinari Nakagawa

Keiju Tomoda

Miyoshi Kawaguchi

Takuya Komatsu

Satoshi Miyanaga

Satoshi Kasamai

Takefumi Komaki

Takuya Iguchi

Ryota Tsuda

A control device for a series hybrid vehicle, the series hybrid vehicle including: an engine, a catalyst that is disposed in an exhaust path of the engine, a generator that generates electric power using power output from the engine, a battery that stores the electric power generated by the generator, and a traction electric motor that is driven with electric power of the battery, the control device including an electronic control unit configured to: acquire information on a temperature of the catalyst; and, when the information on the temperature of the catalyst is information corresponding to the temperature of the catalyst being equal to or higher than a predetermined temperature, change an operating point of the engine to an operating point that reduces a temperature of the exhaust gas while generating the electric power by the generator.

Control device and control method for series hybrid vehicle

A rolling vibration reduction device for an internal combustion engine includes: a main inertial system configured to rotate with a crankshaft of the internal combustion engine; a driving force transmission mechanism configured to transmit a rotational driving force of the crankshaft, a direction of the rotational driving force being reversed by the driving force transmission mechanism; and a sub-inertial system configured to rotate by the rotational driving force transmitted from the driving force transmission mechanism and to reduce rolling vibration of the internal combustion engine associated with rotation of the crankshaft by rotating in an opposite direction to the crankshaft. A torsional resonance frequency in the rolling vibration reduction device is set to a value higher than an explosion primary frequency at a maximum engine speed in a preset operating region of the internal combustion engine.

Rolling vibration reduction device for internal combustion engine

A powertrain system includes an internal combustion engine, a motor generator and a control device. The motor generator includes a rotating shaft connected to a crankshaft of the internal combustion engine via a torsional damper. The powertrain system is configured such that the crankshaft and the above-described rotating shaft are not connected to a drive shaft of a vehicle at least at the time of engine start. The control device is configured to execute a cranking torque amplification control that controls the motor generator such that the MG torque output from the motor generator for cranking the internal combustion engine fluctuates in a resonant period of the torsional damper while making a fluctuation center of the MG torque higher than zero.

Powertrain system

A mounting structure for a drive device includes: a power generation unit having an engine and a generator driven by the engine to generate electric power; and a drive unit having a motor for traveling and a power transmission mechanism that outputs torque from the motor toward a driving wheel. A frame member of a vehicle body is provided inside an engine compartment. The power generation unit and the drive unit are arranged, inside the engine compartment, side by side in a width direction of a vehicle so as not to contact each other, and are each connected to the frame member via a mount member. Portions of the power generation unit and the drive unit, which are close to each other in the width direction, are connected by a connecting member having an anti-vibration elastic body.

Mounting structure for drive device in series hybrid vehicle

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 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 drive unit for a hybrid vehicle that enables downsizing and cost reduction of an oil supply mechanism to be achieved. The drive unit includes: a first feeding line for supplying a first motor and a differential mechanism with oil discharged from a first oil pump; and a second feeding line for supplying a second motor with oil discharged from a second oil pump, the oil being supplied via an oil cooler that cools the oil. A passage between from the second oil pump to the second motor in the second feeding line and a passage between from the first oil pump to the first motor and the differential mechanism in the first feeding line, are independent of each other.

Drive unit for a hybrid vehicle

A structure for cooling a rotating electrical machine includes: an oil pump, a supply oil passage connected to a discharge port of the oil pump, and a first oil passage that is an oil passage located above a stator of the rotating electrical machine in a vertical direction and that has a supplied portion, a discharge hole, and a discharge portion. The supplied portion is connected to the supply oil passage. The discharge hole is formed on a first side in an axial direction, which is one side in the axial direction of the rotating electrical machine with respect to the supplied portion and is configured to discharge oil toward the stator. The discharge portion is formed on the first side with respect to the discharge hole. A second oil passage is formed inside a rotor shaft to which a rotor of the rotating electrical machine is fixed, and a third oil passage connects the discharge portion of the first oil passage and the second oil passage. The third oil passage is formed along a first wall of the case which is located on the first side with respect to the rotating electrical machine.

Structure for cooling rotating electrical machine and vehicle drive device

A cooling system for a power transmission unit that can cool a cooling site effectively is provided. The cooling system comprises: an oil pump; an oil cooler that cools the oil delivered from the oil pump; a first oil pipe for delivering the oil from the oil pump to the oil cooler; a second oil pipe for delivering the oil cooled by the oil cooler to a heat generating element. A housing chamber includes a high-temperature section where the heat generating element is arranged, and a low-temperature section. The second oil pipe is arranged in the housing chamber while passing through the low-temperature section, and an opening is formed on the second oil pipe in such a manner as to open toward the heat generating element.

Cooling system for power transmission unit

A control system for a vehicle having two motors is provided to limit damage on rotary members even if an excessive torque is applied from drive wheels. The control system comprises a first motor, a second motor, and a locking mechanism, and a differential mechanism disposed between the first motor and the drive wheels. The locking mechanism halts one of rotary elements of a differential mechanism when torque of the rotary member is small, and allows the rotary element to rotate when the torque of the rotary member is large. A controller is configured to increase power output of the first motor and decrease power output of the second motor during propulsion on an uneven road surface.

Vehicle control system

A control device for a vehicle is provided. The control device includes an ECU. The ECU includes a first traveling mode. The first traveling mode includes a second traveling mode, a third traveling mode, and a fourth traveling mode. The ECU is configured to select the second traveling mode if the vehicle speed is in a low vehicle speed range equal to or lower than a predetermined vehicle speed when the ECU selects the first traveling mode, to select the third traveling mode if the vehicle speed is in a high vehicle speed range equal to or higher than the predetermined vehicle speed, and to select the fourth traveling mode if the vehicle speed is in a vehicle speed range between the low vehicle speed range and the high vehicle speed range.

Control device for vehicle

A control system for a hybrid vehicle configured to promptly disengage a clutch for halting an engine is provided. A clutch device comprises a reciprocating member having tapered reciprocating teeth, and a rotary member having tapered teeth opposed to the tapered rotary teeth. A controller is configured to turn off an actuator to eliminate the electromagnetic attraction thereby allowing the engine to be started, and to apply a torque of the first motor to the clutch device after the actuator is turned off thereby disengaging the reciprocating teeth from the rotary teeth.

Control system for hybrid vehicle

A power transmission unit that can prevent an entrance of excessive torque to the powertrain is provided. The power transmission unit includes a transmission that transmits torque between an engine and drive wheels; a locking device that selectively halts a rotation of an output shaft of the engine; a transmission case holding a first motor, a second motor, the transmission, and the locking device; a first torque limiter disposed between the engine and the locking device to restrict torque transmitted between the drive wheels and the engine; and a second torque limiter held in the transmission case to restrict torque transmitted between the drive wheels and the locking device.

Power transmission unit for vehicle

A controller for a vehicle is provided. The vehicle includes an engine, a rotary machine, at least one driving wheel, a first clutch disposed between a power transmission member and the rotary machine, the power transmission member being disposed between the engine and the driving wheel, the first clutch being configured to be switched to an engaged state or a disengaged state, and a second clutch disposed in parallel with the first clutch, the second clutch being a one-way clutch. The controller includes an electronic control unit. The electronic control unit is configured to control at least one of the rotary machine or the first clutch so as to reduce inertia of the power transmission member based on a torsional load acting on the power transmission member.

Controller for vehicle

A control device for a vehicle is provided. The control device includes an electronic control unit that is configured to: exert the torque of an input member on a fixed member and a rotating member such that the fixed member and the rotating member are separated from each other, when the thrust is exerted for making the engagement teeth mesh with each other; estimate an inclination angle of tooth surfaces based on a relative movement amount between the fixed member and the rotating member, and a relative rotational amount between the fixed member and the rotating member; estimate a frictional coefficient of the tooth surfaces based on the inclination angle; and control the thrust of the actuator according to the frictional coefficient.

Control device and control method for vehicle

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Susono, Japan

Tomohito Ono