Title:
DEVICE FOR REDUCING IMPACT DURING TRAVELING OF CONSTRUCTION MACHINE AND METHOD FOR CONTROLLING CONSTRUCTION MACHINE USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/105133
Kind Code:
A1
Abstract:
A device for reducing impacts during traveling of a construction machine comprises: a traveling manipulation unit that generates a pilot pressure for controlling the amount of operating oil discharged from a hydraulic pump, which supplies the operating oil to a traveling motor of the construction machine; a sensor unit for detecting the amount of change in manipulation by the traveling manipulation unit; a pressure-reducing valve installed between the traveling manipulation unit and the hydraulic pump so as to control the pilot pressure supplied to the hydraulic pump; and a control unit that receives information regarding the amount of change in manipulation from the sensor unit and, when the amount of change in manipulation is equal to or larger than a preset amount, controls the operation of the pressure-reducing valve such that the pilot pressure increases gradually.
Inventors:
LIM HYUN-SIK (KR)
HAN KWAN-SOO (KR)
BANG JAI-SEOK (KR)
KIM JONG-KI (KR)
HAN KWAN-SOO (KR)
BANG JAI-SEOK (KR)
KIM JONG-KI (KR)
Application Number:
PCT/KR2016/014805
Publication Date:
June 22, 2017
Filing Date:
December 16, 2016
Export Citation:
Assignee:
DOOSAN INFRACORE CO LTD (KR)
International Classes:
E02F9/22
Foreign References:
| KR20130084071A | 2013-07-24 | |||
| KR20090103082A | 2009-10-01 | |||
| JP2786941B2 | 1998-08-13 | |||
| JP2011001970A | 2011-01-06 | |||
| JPH08128406A | 1996-05-21 |
Other References:
See also references of EP 3382108A4
None
None
Attorney, Agent or Firm:
PARK, Pil-jin et al. (KR)
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