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Driver of electric automobile

外国特許コード F110005127
整理番号 A071-48US
掲載日 2011年8月23日
出願国 アメリカ合衆国
出願番号 52473203
公報番号 20050252701
公報番号 7255185
出願日 平成15年6月4日(2003.6.4)
公報発行日 平成17年11月17日(2005.11.17)
公報発行日 平成19年8月14日(2007.8.14)
国際出願番号 JP2003007078
国際公開番号 WO2004028852
国際出願日 平成15年6月4日(2003.6.4)
国際公開日 平成16年4月8日(2004.4.8)
優先権データ
  • 特願2002-277030 (2002.9.24) JP
  • 2003WO-JP07078 (2003.6.4) WO
発明の名称 (英語) Driver of electric automobile
発明の概要(英語) (US7255185)
There is provided a driving device of an electric car, exactly selecting drive wheels of the electric car in accordance with road circumstances.
In the electric car having four or more wheels, all wheels ( 1 to 4 ) have driving motors ( 5 to 8 ) placed therein, capable of driving and regenerative braking, and a plurality of the wheels ( 1 to 4 ) are selected so as to serve as drive wheels or regenerative brake wheels in accordance with traveling circumstances of the car.
特許請求の範囲(英語) [claim1]
1. A driving device of an electric car having four or more wheels, all wheels having driving motors capable of driving and regenerative braking, placed therein, wherein a single controller is connected to the driving motors via corresponding inverters, the controller being further connected to a right front wheel stroke sensor, a left front wheel stroke sensor, a right rear wheel stroke sensor, a left rear wheel stroke sensor, a steering angle sensor, and a longitudinal deceleration sensor, a plurality of the wheels are selected so as to serve as drive wheels or regenerative brake wheels in accordance with traveling circumstances of the car, and wherein all wheels are selected so as to serve as the regenerative brake wheels upon braking and the rear wheels or a group of the rear wheels are selected so as to serve as the drive wheels upon traveling on a level road and an upslope, and the front wheels or a group of the front wheels are selected so as to serve as the drive wheels upon traveling on a downslope.
[claim2]
3. A driving device of an electric car having four or more wheels, all wheels having driving motors capable of driving and regenerative braking, placed therein, wherein a single controller is connected to the driving motors via corresponding inverters, the controller being further connected to a right front wheel stroke sensor, a left front wheel stroke sensor, a right rear wheel stroke sensor, a left rear wheel stroke sensor, a steering angle sensor, and a longitudinal deceleration sensor, a plurality of the wheels are selected so as to serve as drive wheels or regenerative brake wheels in accordance with traveling circumstances of the car, and wherein the radially outer wheels are selected so as to serve as the drive wheels and the radially inner wheels are selected so as to serve as the regenerative brake wheels upon turning.
[claim3]
2. The driving device of an electric car according to claim 1, wherein the radially outer wheels are selected so as to serve as the drive wheels upon turning.
[claim4]
4. A driving device of an electric car having four or more wheels, all wheels having driving motors capable of driving and regenerative braking, placed therein, wherein a single controller is connected to the driving motors via corresponding inverters, the controller being further connected to a right front wheel stroke sensor, a left front wheel stroke sensor, a right rear wheel stroke sensor, a left rear wheel stroke sensor, a steering angle sensor, and a longitudinal deceleration sensor, a plurality of the wheels are selected so as to serve as drive wheels or regenerative brake wheels in accordance with traveling circumstances of the car, and wherein strokes of suspensions are used as determining information of the traveling circumstances for selecting the drive wheels.
[claim5]
5. The driving device of an electric car according to claim 4, wherein, upon traveling on a level road and an upslope, the rear wheels or a group of the rear wheels are selected so as to serve as the drive wheels, and, upon traveling on a downslope, the front wheels or a group of the front wheels are selected so as to serve as the drive wheels.
  • 発明者/出願人(英語)
  • SHIMIZU HIROSHI
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • 180/65.1
  • 180/236
参考情報 (研究プロジェクト等) CREST Social Systems for Better Environment Performance AREA
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