Title:
CONTROL UNIT FOR CONSTRUCTION MACHINERY, AND CONSTRUCTION MACHINERY USING THE SAME
Document Type and Number:
Japanese Patent JP2009280973
Kind Code:
A
Abstract:
To properly stop a mechanism which is driven by an electric motor, when an electric wire between a battery and the electric motor is cut.
Construction machinery is equipment with the mechanism which is driven by the electric motor connected to the battery. A control unit for the construction machinery controls the operation of the electric motor. A detection means for detecting a state of an electric current which flows through the electric wire between the battery and the electric motor is connected. When the cutting of the electric wire is detected on the basis of the result of detection by the detection means, the state of the electric motor is switched to a short-circuited state.
Inventors:
TSUKAMOTO HIROYUKI
KUBO TAKASHI
YOSHIDA MOTOHARU
KUBO TAKASHI
YOSHIDA MOTOHARU
Application Number:
JP2008131288A
Publication Date:
December 03, 2009
Filing Date:
May 19, 2008
Export Citation:
Assignee:
SUMITOMO CONSTR MACHINERY MFG
International Classes:
E02F9/20
Domestic Patent References:
| JP2005290902A | 2005-10-20 | |||
| JP2006034068A | 2006-02-02 | |||
| JPH11262283A | 1999-09-24 | |||
| JPH0946812A | 1997-02-14 | |||
| JPH0223080A | 1990-01-25 | |||
| JP2001204184A | 2001-07-27 | |||
| JP2002291268A | 2002-10-04 | |||
| JPH01120797U | 1989-08-16 |
Attorney, Agent or Firm:
Kazuo Hakata
Tadahiko Ito
Tadahiko Ito
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