Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Shingo Kitajima

Hisaya Shimizu

Takayuki Koizumi

Shigehiko Omata

Yoshiaki Nagasawa

Shigenori Nakazato

Seigo Misaki

Atsushi Saeki

Norio Yanagawa

To provide a rotary electrical machine having a novel configuration adapted to provide axial downsizing of the rotary electrical machine when connecting an electrical connection conductor to a welded side terminal section of a coil end of a segment coil. The rotary electrical machine includes: a stator coreincluding slots radially extended in a radial fashion; a plurality of segment coilsradially stacked and accommodated in the slot; and a neutral point bus-barlaid on a side of a welded coil end of the segment coiland including a connection wiring section and a connection section for interconnecting the different segment coils. In a state where the segment coilsare mounted, at least a part of the connection wiring section is laid in a radial space RS radially defined by the segment coils. The connection wiring section can be laid in the radial space RS radially defined by the segment coilsso that axial elongation of a configuration space for the electrical connection conductoris prevented. Thus, the axial downsizing of the rotary electrical machine can be achieved.

Rotary electrical machine

Vehicle engine starting apparatus of automatically restarting an engine by quickly responding to a subsequent engine restart request even if engagement of a pinion gear with a ring gear is failed in the process of a stop of the engine. Pinion gear is displaced such that the pinion gear is engaged with the ring gear at a timing (when rotation speed of the pinion gear and rotation speed of the engine are nearly synchronized with each other with a signal from a control device when a predetermined condition is met. Where an engagement sensor has transmitted a signal 'H' indicating engagement failure, when restart of the engine becomes necessary, the pinion gear is displaced toward a ring gear side by the control device.

Vehicle engine starting apparatus

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Hitachinaka, Japan

Shingo Kitajima