Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Denso Corporation

Masaki Nomura

Tomoo Atarashi

Hideki Hisada

Kazuyuki Izawa

Shunsuke Oyama

Shigeki Takami

Kazuma Hasegawa

Takafumi Koshida

Toshio Okoshi

Yoshinori Ono

Yoshitomi Haneda

Masaya Yamamoto

Toshiya Hashimoto

Noriaki Ikemoto

Kozo Yamaguchi

Kazuo Aoki

Akihiro Kimura

Masatoshi Ito

Kiyoshiro Ueoka

Ken Iwatsuki

Takeshi Hara

Taiyo Uejima

Tomochika Inagaki

Tomokazu Nomura

Hiroaki Kioka

Wataru Shiraishi

Shiko Yoshimura

Yosuke Ueda

Hiroshi Imai

Tokiyoshi Kida

Yasuhiro Ishihara

Kazuma Hasegawe

A hybrid drive device has a clutch connecting and disconnecting an output shaft and an input shaft, a first motor generator that rotates in conjunction with the rotation of the input shaft, an allowable clutch heat generation amount calculation portion that calculates the allowable clutch heat generation amount, an allowable differential clutch rotation speed calculation portion which calculates the allowable differential clutch rotation speed for when engagement starts, on the basis of the allowable clutch heat generation amount, and a motor generator rotation control portion that controls the rotation speed of the first motor generator such that the differential clutch rotation speed when engagement starts and during engagement is no more than the allowable differential clutch rotation speed when engagement starts.

Hybrid drive device

A hybrid driving apparatus includes an engine configured to output a rotation driving force to an output shaft; an input shaft configured to rotate in association with rotation of driving wheels of a vehicle; a clutch that is provided between the output shaft and the input shaft to disengageably connect the output shaft and the input shaft; a clutch actuator configured to operate the clutch; a motor generator configured to rotate in association with rotation of the input shaft; a rust formation determining unit configured to determine whether there is a possibility of a rust formation on the clutch; and a rust formation suppressing unit configured to operate the clutch actuator in a case where the rust formation determining unit determines that there is the possibility of the rust formation on the clutch.

Hybrid driving apparatus

A hybrid drive device includes a speed change mechanism, a motor drivingly coupled to an input shaft, and a clutch interposed between an engine and an input shaft. Upon engine start during engine traveling, the clutch is engaged, and rotation of the engine is increased. A control device of the hybrid drive device includes start upshift control means that, according to the engagement control of the clutch upon engine start, upshifts the speed change mechanism to output inertia torque. Thus, when the engine is started, output torque as the sum of driving torque of the motor and the inertia torque is output to the driving wheel, which reduces hesitation upon engine start.

Control device of hybrid drive device

It is provided a control device for a vehicular power transmitting apparatus provided with a transmission disposed in a power transmitting path between an electric motor and drive wheels, the control device switching a synchronizing control method of the transmission in a kickdown shifting performed in the transmission to either one of a rotation-synchronization control by a hydraulic pressure control of the transmission and a rotation-synchronization control by the electric motor, depending on an input torque applied to the transmission at the beginning of the shifting.

Control device for vehicular power transmitting apparatus

During a standstill, a prescribed rotation speed N, which is lower than a prescribed rotation speed Nused during a travel at a low vehicle speed, is set as a minimum rotation speed Nemin (S), and when a demand for an idle operation has been made (S), the minimum rotation speed Nemin is set as a target rotation speed Ne* and the value 0 is set as a target torque Te* (S), whereby an engine is controlled. As a result of this, it is possible to improve the fuel consumption of a vehicle when the engine is operated at idle at standstill compared to a case where the engine is operated at idle at the minimum rotation speed Nemin for which the prescribed rotation speed Nis set regardless of whether or not the vehicle is at a standstill.

Vehicle, driving apparatus and control method of both

An apparatus and a method to stably run an electrically operated vehicle is disclosed. The invention has an electric generator target torque calculation processor for calculating electric generator target torque showing a target value of electric generator torque by feedback control for performing at least integral control; a determination processor for calculating an integral term correction determining value on the basis of an integral term component of the electric generator target torque in the integral control; and a drive motor target torque calculation processor for calculating drive motor target torque showing a target value of drive motor torque on the basis of the integral term correction determining value. Since the drive motor target torque is calculated on the basis of the integral term correction determining value, no error is generated in the drive motor target torque and the electrically operated vehicle is stably run.

Electrically operated vehicle drive controller, electrically operated vehicle drive control method and its program

An electrically operated vehicle drive controller has an electric generator target torque calculation processing means for calculating electric generator target torque TG*; an inertia correction torque calculation processing means for calculating inertia correction torque on the basis of inertia torque TGI of an electric generator; a drive motor target torque generation processing means for generating drive motor target torque on the basis of the calculated inertia correction torque; and a damping torque correction processing means for correcting output torque on the basis of an output torque changing index which expresses a change of output torque due to the inertia correction torque.

Electrically operated vehicle drive controller and electrically operated vehicle drive control method

A drive control system for an electric vehicle and a method of drive control of the electric vehicle. The drive control system for the electric vehicle includes a drive motor target torque calculation processing device for calculating a drive motor target torque representing a target torque of a drive motor; and a drive motor target torque restriction processing device that judges whether or not a parking mechanism is in operation and, if the parking mechanism is in operation, restricts variations in the drive motor target torque.

Drive control system for electric vehicle and method of drive control of electric vehicle

The invention includes a target-engine-speed acquisition element that acquires a target engine speed necessary to reduce engine speed, thereby stopping the engine at a target stop position; a crank-angle acquisition element that acquires a crank angle indicative of the position of a crankshaft; and a target-engine-speed correction element that corrects the target engine speed according to the acquired crank angle. Because the target engine speed is corrected according to the crank angle, the engine can be stopped at the target stop position even if the friction in the engine, the electric motor, etc. varies, the temperature or viscosity of the lubricating and cooling oils varies, or the vehicle is accelerated or decelerated during the reduction of the engine speed.

Vehicle-drive control system and method and program therefor

A hybrid vehicle drive control apparatus including an electric generator mechanically connected to an engine so as to have a differential rotation with respect to the engine, a generator brake for mechanically stopping a rotation of the generator and a controller that gradually decreases a generator torque while engaging the generator brake.

Hybrid vehicle drive control apparatus, hybrid vehicle drive control method, and program thereof

An apparatus and a method to stably run an electrically operated vehicle is disclosed. The invention has an electric generator target torque calculation processor, a first determination processor for calculating an inertia correction determining value, a second determination processor for calculating an integral term correction determining value, a determining mode switching condition judgment processor, and a drive motor target torque calculation processor. When a determining mode switching condition exists, the drive motor target torque calculation processor switches between a first determining mode for calculating drive motor target torque, and a second determining mode for calculating the drive motor target torque. When the determining mode switching condition exists, the first determining mode and the second determining mode are switched so that the drive motor target torque is calculated on the basis of the integral term correction determining value.

A hybrid type vehicle drive control device for preventing an engine from being stalled as a generator fixing mechanism is released. The hybrid type vehicle drive control device includes a generator connected differentially rotatably and mechanically to the engine, a generator fixing mechanism for mechanically stopping the rotation of the generator, a braking state decision device for deciding a braking state by a braking brake and a release control device for releasing the generator fixing mechanism when it is decided that an abrupt braking has been performed. When the abrupt braking is performed, the generator fixing mechanism can be released to prevent the engine speed from lowering and the engine from being stalled.

Growing community of inventors

Anjo, Japan

Masaki Nomura