Toyota Jidosha Kabushiki Kaisha

Katsunori Yagi

Nobuyuki Kobayashi

Toshimitsu Ito

Takashi Hattori

Hidetoshi Kusumi

A generator-motor apparatus includes a control circuit, an alternator, electrode plates, and switching devices. The electrodes plates have a substantial horseshoe shape, and are provided on an end surface of the alternator so as to surround a rotating shaft of the alternator. Each of the switching devices is formed by sandwiching a MOS transistor between two electrodes, and has a can structure for sealing the internal space of the switching device using a resin. The switching devices are directly attached to the electrode plate by means of soldering, and the switching devices are directly attached to the electrode plate by means of soldering. The control circuit controls the switching devices. The switching devices drive the alternator as an electric motor or an electric power generator.

Switching device, generator-motor apparatus using switching device, drive system including generator-motor apparatus, and computer-readable recording medium on which a program for directing computer to perform control of generator-motor apparatus is recorded

A generator-motor apparatus () includes a control circuit (), an alternator (), electrode plates (), and switching devices (SWto SW). The electrodes plates () have a substantial horseshoe shape, and are provided on an end surface of the alternator () so as to surround a rotating shaft (A) of the alternator (). Each of the switching devices (SWto SW) is formed by sandwiching a MOS transistor between two electrodes, and has a can structure for sealing the internal space of the switching device using a resin. The switching devices (SW, SW, SW) are directly attached to the electrode plate () by means of soldering, and the switching devices (SW, SW, SW) are directly attached to the electrode plate () by means of soldering. The control circuit (2% controls the switching devices (SWto SW). The switching devices (SWto SW) drive the alternator () as an electric motor or an electric power generator.

A power control unit installed on a vehicle including a first power source and a second power source which have respective different voltages, an inverter connected to a rotary device and connected to at least one of the first and second power sources. A converter is connected to the first and second power sources. A casing is formed of an electrically conductive material and has a grounding terminal formed thereon, wherein the inverter and the converter are accommodated within the casing, and are connected to the grounding terminal through said casing.

Power control unit for a vehicle

In an internal combustion engine having a throttle valve, a flag or switch having hysteresis characteristics using the operation of the throttle valve is provided.

Method and apparatus for controlling air-fuel ratio in internal

In an internal combustion engine, the concentration of a specific composition is detected, and the fluctuation thereof is calculated. Surging in the engine is detected by comparing the calculated fluctuation with a predetermined value.

Method and apparatus for detecting surging in internal combustion engine

A control device determining the air-fuel ratio in the leanest fashion or in the leaner fashion depending on the position of the throttle valve. The ignition timing is also determined in relation to the air-fuel ratio. The ignition timing is advanced when the air-fuel ratio is in the leanest fashion and the ignition timing is retarded with respect to the former timing when the air-fuel ratio is in the leaner fashion. The control device further causes a delay in change-over of the ignition timing between two timing patterns relative to the change-over of the air fuel ratio when the opening of the throttle valve is changed beyond the predetermined value.

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Toyota, Japan

Katsunori Yagi