Mitsubishi Electric Corporation

Jsr Corporation

Oki Electric Industry Co., Ltd.

Oki Data Corporation

Misawa Homes Co., Ltd.

Other

Mitsubishi Denki Kabushiki Kaisha

Fuji Electric Co., Ltd.

Mitsubishi Lighting Fixture Co., Ltd.

Shin Nikkei Company, Ltd.

Osamu Ishikawa

Tomohisa Shoda

Takeru Okabe

Yasufumi Ogawa

Shiro Yonezawa

Nozomu Kamioka

Masaki Horii

Toshikazu Ito

Hiroaki Kitano

Yukio Hosaka

Satoshi Yamamoto

Kou Hasegawa

Kensuke Hayashi

Yoshikazu Endo

Hozumi Satou

Keiichi Enoki

Koichiro Kamei

Daisuke Mizuno

Michitaka Fujiwara

Takahisa Hamaguchi

Katsuhiko Sakata

Naoko Oya

Mikihiko Sone

Yoshimi Suzuki

Kazuya Yamamoto

Toru Tanaka

Hideaki Tani

Michio Sasaki

Hideki Takubo

Hiroaki Nishikawa

Jun Bunya

Tetsuya Kobayashi

Satoshi Nagai

Kouji Shibata

Masami Nakashima

Kenichiro Nishi

Isamu Ogawa

Yuhei Tsukahara

Ichiro Urata

Kentaro Eguchi

Akio Miwa

Kenji Hamazaki

Kazuhiko Tsugita

Kunihiko Kobayashi

Takuro Ihara

Satoru Yoshii

Moriaki Okuda

Naoki Wada

Yasunori Ieki

Tsukasa Iwamoto

Nobuhiro Matsuda

Kiyoshi Sumiya

Provided is a device for performing an automatic stop operation for an internal combustion engine when a predetermined automatic stop requirement is satisfied during an operation of the internal combustion engine and performing a restart operation for the internal combustion engine when a predetermined restart requirement is satisfied during an automatic stop time period of the internal combustion engine. In the device, restart control means () executes fuel injection control at the time of start of the restart operation by determining whether or not initial asynchronous injection of a fuel into a cylinder that is in an intake stroke is executable in accordance with an initially detected crank angle after the start of the restart operation and determining a next fuel injection cylinder and a fuel injection timing for the next fuel injection cylinder.

Automatic stop/restart device for internal combustion engine and automatic stop/restart method for internal combustion engine

While coolant is used to cool a motor inverter and a generator inverter included in a power drive unit configured to invert power between a battery and a motor/generator in both directions, an EV travel mode and a power generation travel mode are switched according to detection values from sensors in an electrically driven vehicle and including a switching device temperature sensor for a switching device of the inverters and a coolant temperature sensor, thereby controlling the vehicle. A failure of the coolant temperature sensor is detected according to a detection value from the coolant temperature sensor, and, in the EV travel mode, a detection value detected by the switching device temperature sensor for the switching device of the generator inverter is set as a detection value of a temperature of the coolant when the failure of the coolant temperature sensor is detected.

Control device and control method for electrically driven vehicle

An engine automatic stop/restart device includes a ring gear which is linked to a crank shaft of the engine, a starter motor which is energized so as to be rotated, a pinion gear which transmits a rotation of the starter motor to the ring gear, and a pinion gear movement unit which is energized so as to move the pinion gear in a direction of the ring gear, whereby the pinion gear is engaged to the ring gear, in a state where the engine automatic stop/restart device automatically stops the engine when an engine automatic stop condition is established, and restarts the engine when an engine restart condition is established, and includes an inertially-rotating-restart-decision unit which permits or prohibits a restart of the engine, which is inertially rotating after the engine is automatically stopped, in accordance with a detection result of an oil temperature of the engine.

Engine automatic stop/restart device

In order to provide an engine automatic stop and restart apparatus capable of realizing excellent startability, and preventing an excessive load from being imposed on a starter () and a power transmission system, a starter drive inhibition determination section () inhibits, in a case where an engine restart condition is satisfied, when a backward rotation of an engine () is detected based on a crank angle of a crankshaft of the engine () detected by a crank angle sensor () for detecting the crank angle, a drive of the starter () configured to crank the crankshaft so as to restart the engine (), and releases, when a stop of the engine () is detected, the drive inhibition of the starter ().

Automatic engine stopping/restarting device, and automatic engine stopping/restarting method

A device for automatically stopping and restarting an internal combustion engine is provided with a crank angle sensor () that detects a crank angle of an engine (), a fuel injection unit () that injects fuel into the engine, and the device is also provided with a starter activation prohibition determination means that prohibits activation of a starter () by determining that the engine is in reverse rotation during inertial rotation of the engine, and removes the starter activation prohibition depending on the crank angle when the engine starts reverse rotation.

Device for automatically stopping and restarting internal combustion engine

The engine starting device for stopping, when an engine automatic stop condition is satisfied, fuel injection to the engine to automatically stop the engine, and for thereafter restarting the engine when an engine restart condition is satisfied, includes: a ring gear coupled to a crankshaft of the engine; a starter motor rotated by a current supply; a pinion gear for transmitting the rotation of the starter motor to the ring gear; a pinion gear moving part for moving the pinion gear toward the ring gear by a current supply, thereby meshing the pinion gear with the ring gear; and a fuel injection control part for restarting the fuel injection so that combustion is generated in a predetermined compression cylinder after the engine restart condition is satisfied and after the pinion gear moving part starts the movement of the pinion gear.

Engine starting device and engine starting method

In an automatically stopped internal combustion engine, a rotation speed at next and subsequent ignition timings is predicted at every ignition timing of the internal combustion engine after the internal combustion engine is stopped automatically. Whether self-restorable restarting is allowed is determined according to a comparison result of the predictive rotation speed and a self-restoration determination rotation speed, so that self-restorable restarting is performed in a reliable manner.

Automatic stopping and restarting device of internal combustion engine

A control device for an internal combustion engine capable of controlling an intake-pipe pressure within a range which allows restartability to be ensured. A control device for an internal combustion engine includes: an idle-stop control section for restarting the engine in response to generation of a restart request; and an intake-air amount control section for setting a control amount of an intake system so that the intake air amount becomes zero when an intake-pipe pressure of the engine upon generation of the automatic stop request is higher than a predetermined pressure and setting the control amount of the intake system so that the intake air amount becomes larger than the amount upon generation of the automatic stop request, and then becomes zero when the intake-pipe pressure is lower than the predetermined pressure.

Control device for internal combustion engine and method of controlling internal combustion engine

Provided are an internal combustion engine automatic stop/restart device and an internal combustion engine automatic stop/restart method capable of appropriately releasing a drive inhibition state of a starter () depending on an RPM of an internal combustion engine (). The drive inhibition state of the starter is released when a drive inhibition release determination period, which is set depending on a time interval between a time point when a first reverse rotation crank signal is detected and a time point when a second reverse rotation crank signal is detected and a drive permission lower limit value corresponding period corresponding to a starter drivable RPM lower limit value, elapses before a third reverse rotation crank signal is input.

Internal combustion engine automatic stop/restart device and internal combustion engine automatic stop/restart method

To provide a copolymer latex having a small particle size, which has a sufficient adhesion strength as a binder and a low viscosity and excellent handling properties in a composition containing a filler and the like, a composition for coating paper using the copolymer latex, and a coated paper having a coating layer formed by the composition. A copolymer latex contains a copolymer comprising: (A) 20 to 80% by mass of a structural unit derived from an aliphatic conjugated diene monomer, (B) 4 to 15% by mass of a structural unit derived from an unsaturated carboxylic acid monomer, and (C) 5 to 76% by mass of a structural unit derived from other copolymerizable monomer, wherein the total of (A), (B) and (C) being 100% by mass, and has a number average particle size of 30 to 80 nm by measurement with a transmission electron microscope, and has a viscosity of 50 to 400 mPa&#xb7;s at a solid content of 48% by mass.

Copolymer latex and composition containing the same and application product therof

Provided is an engine starting device, including: starter control means for causing, when the restart condition is established during a period in which a meshing inhibition condition for a ring gear and a pinion gear is established, the pinion gear and the ring gear to mesh with each other after the meshing inhibition condition is released, thereby restarting the engine. The starter control means determines the meshing permission condition and the meshing inhibition condition based on at least an engine rotation speed, and determines the release of the meshing inhibition condition before the engine completely stops based on at least one of the engine rotation speed and an elapsed time after the establishment of the meshing inhibition condition.

The engine controller includes: an engine-rpm increase amount computing section for computing an amount of increase in an engine rpm, generated by first ignition of an engine after a restart condition is satisfied; a start failure determination crank-angle change amount determination value setting section for setting a restart failure determination threshold value based on the amount of increase in the engine rpm; and a restart failure determination section for determining a restart failure when a crank-angle change amount from a first ignition timing of the engine after the satisfaction of the restart condition becomes larger than the restart failure determination threshold value although a complete combustion of the engine is not determined, interrupting a restart operation of the engine, and restarting the restart operation of the engine after elapse of a predetermined period of time.

Engine controller and engine control method

A clutch control unit includes a clutch motor controller that controls a clutch motor. The clutch motor controller has a target clutch motor current computing unit that computes a target clutch motor current for adjusting torque of the clutch motor to be torque corresponding to an operating state of the vehicle, and a motor driving and braking selection unit that selects a motor driving mode in which the clutch motor is driven by applying feedback control on an output of the clutch motor or a motor braking mode in which the clutch motor is braked by short-circuiting the clutch motor according to a difference between the target clutch motor current and an actually detected clutch motor current. It thus becomes possible to provide a control system of a transmission that engages a clutch by a motor braking force in a manner that suits the running state of the vehicle.

Control system of transmission

Provided is an automatic stop and restart device for an engine that is capable of suppressing occurrence of an abnormal condition even if a transmission state is changed during an engine restart process after an engine restart condition is satisfied in an automatic engine stop process. A controller performs the automatic engine stop process and the engine restart process. If a determined state of a transmission is a drive range, a transmission state determination unit drives a pinion gear thrust unit at timing determined by a first pinion gear thrust timing determination unit. If the determined state of the transmission is a non-drive range, the transmission state determination unit drives the pinion gear thrust unit at timing determined by a second pinion gear thrust timing determination unit.

Automatic stop and restart device for an engine

Growing community of inventors

Chiyoda-ku, Japan

Osamu Ishikawa