Title:
ELECTRICALLY DRIVEN VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/067000
Kind Code:
A1
Abstract:
Provided is an electrically driven vehicle such that slippage to drive wheels is suppressed without causing large pitching vibration of the vehicle. The electrically driven vehicle has an electric motor (1,4), a drive wheel (3,6) driven by the electric motor, and an electric motor control device (40) that reduces the torque of the electric motor when drive wheel slippage has occurred and restores the torque after the slippage has been stopped. The electrically driven vehicle has a pitching detection device (26) that detects the amplitude of pitching vibration of the vehicle. The amount of torque of the electric motor that the electric motor control device restores over a given amount of time after slippage has stopped is caused to be different in the case that an amplitude (A) detected by the pitching detection device is less than or equal to an assessment value (A1) and in the case that the amplitude (A) exceeds the assessment value (A1).
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Inventors:
KIKUCHI AKIRA (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
NAKAJIMA KICHIO (JP)
KOBAYASHI HIROYUKI (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
NAKAJIMA KICHIO (JP)
KOBAYASHI HIROYUKI (JP)
Application Number:
PCT/JP2011/075871
Publication Date:
May 24, 2012
Filing Date:
November 09, 2011
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
KIKUCHI AKIRA (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
NAKAJIMA KICHIO (JP)
KOBAYASHI HIROYUKI (JP)
KIKUCHI AKIRA (JP)
YASUDA TOMOHIKO (JP)
SATO TAKAYUKI (JP)
NAKAJIMA KICHIO (JP)
KOBAYASHI HIROYUKI (JP)
International Classes:
B60L15/20; B60L3/00
Domestic Patent References:
| WO2008111436A1 | 2008-09-18 |
Foreign References:
| JP2003088152A | 2003-03-20 | |||
| JP2006136175A | 2006-05-25 | |||
| JP2008236914A | 2008-10-02 | |||
| JP2009273274A | 2009-11-19 |
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
Kasuga 讓 (JP)
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Claims: