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Title:
LOW IDLE CONTROL SYSTEM OF CONSTRUCTION EQUIPMENT AND AUTOMATIC CONTROL METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2012/087020
Kind Code:
A3
Abstract:
The present invention provides a low idle control system of construction equipment and an automatic control method thereof. Said low idle control system of the construction equipment comprises: a front angle change sensing means (10) which senses an operation of at least a part of a front unit through changes in an angle; a controller (3) which is electrically connected with said front angle change sensing means (10), determines whether to enter an auto idle state by receiving an output signal that is delivered from said front angle change sensing means (10), and generates an rpm control signal corresponding to the result of said determination on whether to enter the auto idle state; and an ECU (4) which controls the rpm of an engine (5) by receiving the rpm control signal outputted from said controller (3). The invention understands the state of use of equipment more accurately, thereby implementing an effective auto idle function.

Inventors:
PARK, Kwang Seok (302 Jungang Villa, 16-46 Juan 5-dong Nam-gu, Incheon 402-205, 402-205, KR)
박광석 (인천 남구 주안5동 16-46 중앙빌라 302호, 402-205 Incheon, 402-205, KR)
KIM, Sung Il (208-401 Dongchunmaeul Apt, Dongchun-dong Yeonsu-gu, Incheon 406-130, 406-130, KR)
Application Number:
KR2011/009920
Publication Date:
September 07, 2012
Filing Date:
December 21, 2011
Export Citation:
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Assignee:
DOOSAN INFRACORE CO., LTD. (7-11, Hwasu-dong Dong-gu, Incheon 401-020, 401-020, KR)
두산인프라코어 주식회사 (인천광역시 동구 화수동 7-11번지, 401-020 Incheon, 401-020, KR)
PARK, Kwang Seok (302 Jungang Villa, 16-46 Juan 5-dong Nam-gu, Incheon 402-205, 402-205, KR)
박광석 (인천 남구 주안5동 16-46 중앙빌라 302호, 402-205 Incheon, 402-205, KR)
International Classes:
F02D41/08; F02D29/02; F02D35/00; F02D45/00
Foreign References:
KR20100075339A2010-07-02
KR19990005275A1999-01-25
KR870003295A1987-04-16
KR950014524B11995-12-05
Other References:
See also references of EP 2657492A4
Attorney, Agent or Firm:
KIM, Kee-Hyo (14F, Kukdong Building 60-1,Chungmuro3-ka, Chung-ku, Seoul 100-705, 100-705, KR)
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Claims: