Vehicle drive device

Patent metadata

Field	Value
Publication number	US-9776625-B2
Application number	US-201515115238-A
Country	US
Kind code	B2
Filing date	Feb 18, 2015
Priority date	Apr 22, 2014
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A vehicle drive device includes an engine configured to be mounted to a vehicle, a drive shaft mechanically connected to the engine as to drive the vehicle, a first power connecting-disconnecting unit connected to one of the drive shaft and the engine, a motor generator mechanically connected to the one of the drive shaft and the engine via the first power connecting-disconnecting unit, a second power connecting-disconnecting unit connected to the motor generator, and a supercharger mechanically connected to the motor generator via the second power connecting-disconnecting unit. The vehicle drive device can retrieve regenerative electric power efficiently.

First claim

The invention claimed is:

1. A vehicle drive device comprising:
an engine configured to be mounted to a vehicle;
a transmission mechanically connected to a first side of the engine;
a drive shaft mechanically connected to the engine via the transmission to drive the vehicle;
a first power connecting-disconnecting unit mechanically connected to a second side of the engine, the second side of the engine being opposite to the first side of the engine;
a motor generator mechanically connected to the second side of the engine via the first power connecting-disconnecting unit;
a second power connecting-disconnecting unit connected to the motor generator;
a supercharger mechanically connected to the motor generator via the second power connecting-disconnecting unit; and
a controller electrically connected to the motor generator and the second power connecting-disconnecting unit,
wherein the first power connecting-disconnecting unit comprises a directional power transmission unit including a one-way clutch or a two-way clutch for transmitting power only to the motor generator from the second side of the engine, and
wherein the controller is configured to:
when the vehicle is decelerated or when electric power is generated by the engine while the vehicle is stopped, disengage the second power connecting-disconnecting unit and allow the motor generator to perform regeneration; and
when the engine is supercharged, engage the second power connecting-disconnecting unit and allow the motor generator to perform power running.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Yukawa Junichi

Classifications

• F02D23/00

  Controlling engines characterised by their being supercharged · CPC title

• B60W10/30

  including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps · CPC title

• B60Y2300/51

  Driving or powering of engine accessories · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60W30/18127

  Regenerative braking · CPC title