发明申请
- 专利标题: HYDRAULIC CONTROL SYSTEM IN WORKING MACHINE
- 专利标题(中): 工作机械液压控制系统
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申请号: US13124519申请日: 2009-06-01
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公开(公告)号: US20110197576A1公开(公告)日: 2011-08-18
- 发明人: Atsushi Wada , Keisuke Shirani , Takashi Iguchi
- 申请人: Atsushi Wada , Keisuke Shirani , Takashi Iguchi
- 申请人地址: CH Geneva
- 专利权人: CATERPILLAR SARL
- 当前专利权人: CATERPILLAR SARL
- 当前专利权人地址: CH Geneva
- 优先权: JP2008-271759 20081022
- 国际申请: PCT/JP2009/002414 WO 20090601
- 主分类号: F16D31/02
- IPC分类号: F16D31/02
摘要:
A hydraulic control system that includes a controller that controls the accumulator flow rate control valve and a discharge flow rate of the hydraulic pump, wherein the controller: determines a minimum value among an operation demand flow rate to be demanded by an operation amount of hydraulic actuator operating members, a pump flow rate to be determined by a discharge pressure of the hydraulic pump under a constant horsepower control and a maximum flow rate of the hydraulic pump such that the determined minimum value is an actuator supply flow rate to be supplied to the plurality of hydraulic actuators, and controls the discharge flow rate and the accumulator flow rate so as to supply the actuator supply flow rate corresponding to a total flow rate of the discharge flow rate and the accumulator flow rate.
公开/授权文献
- US08689550B2 Hydraulic control system in working machine 公开/授权日:2014-04-08