Title:
SYSTEM FOR CONTROLLING HYDRAULIC PUMP IN CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2012/011615
Kind Code:
A1
Abstract:
Disclosed is a system for controlling a hydraulic pump in a construction machine which can reduce the discharge flow of the hydraulic pump in proportion to the load pressure of the hydraulic pump to enhance operability by the driver. The present invention provides the system for controlling the hydraulic pump in the construction machine, which is characterized by detecting the discharge pressure of the hydraulic pump and the operation activity of an operation lever, and comparing the detected discharge pressure of the hydraulic pump and a predetermined pressure value, and when the detected discharge pressure exceeds the predetermined pressure value, the maximum dischargeable flow of the hydraulic pump is reduced in proportion to the difference between the detected pressure and the predetermined pressure value.
Inventors:
JOUNG, Hea-Gyoon (1 SinJurye LG Apt, Jurye 2-dong Sasang-gu, Busan 617-762, 617-762, KR)
정해균 (부산시 사상구 주례2동 LG신주례아파트, 617-762 Busan, 617-762, KR)
LEE, Sang-Hee (321 Dormitory of Volvo, 33-1 Sinchon-don, Changwon-si Gyeongsangnam-do 641-370, 641-370, KR)
정해균 (부산시 사상구 주례2동 LG신주례아파트, 617-762 Busan, 617-762, KR)
LEE, Sang-Hee (321 Dormitory of Volvo, 33-1 Sinchon-don, Changwon-si Gyeongsangnam-do 641-370, 641-370, KR)
Application Number:
KR2010/004692
Publication Date:
January 26, 2012
Filing Date:
July 19, 2010
Export Citation:
Assignee:
VOLVO CONSTRUCTION EQUIPMENT AB (S- Eskilstuna, S-631 85, SE)
볼보 컨스트럭션 이큅먼트 에이비 (에스킬스투나 에스이, Eskilstuna, S-631 85, SE)
JOUNG, Hea-Gyoon (1 SinJurye LG Apt, Jurye 2-dong Sasang-gu, Busan 617-762, 617-762, KR)
정해균 (부산시 사상구 주례2동 LG신주례아파트, 617-762 Busan, 617-762, KR)
볼보 컨스트럭션 이큅먼트 에이비 (에스킬스투나 에스이, Eskilstuna, S-631 85, SE)
JOUNG, Hea-Gyoon (1 SinJurye LG Apt, Jurye 2-dong Sasang-gu, Busan 617-762, 617-762, KR)
정해균 (부산시 사상구 주례2동 LG신주례아파트, 617-762 Busan, 617-762, KR)
International Classes:
E02F9/22; F15B7/10; F15B13/02
Attorney, Agent or Firm:
YOON, Eui-Seoup (17th Floor, UNIK Bldg. 706-13, Yeoksam-dong,Gangnam-gu, Seoul 135-080, 135-080, KR)
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