发明授权
- 专利标题: System implementing parallel lift for range of angles
- 专利标题(中): 系统实现平行升降机的角度范围
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申请号: US13162356申请日: 2011-06-16
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公开(公告)号: US08886415B2公开(公告)日: 2014-11-11
- 发明人: Aaron R. Shatters , Steven C. Budde , John T. Reedy , Robert E. Stone
- 申请人: Aaron R. Shatters , Steven C. Budde , John T. Reedy , Robert E. Stone
- 申请人地址: US IL Peoria
- 专利权人: Caterpillar Inc.
- 当前专利权人: Caterpillar Inc.
- 当前专利权人地址: US IL Peoria
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- 主分类号: E02F3/43
- IPC分类号: E02F3/43 ; E02F3/36 ; E02F9/22
摘要:
A hydraulic system is disclosed. The hydraulic system may have a pump, a lift actuator, a lift valve arrangement, a tilt actuator, a tilt valve arrangement, and a tilt angle sensor configured to generate a first signal. The hydraulic system may further have at least one operator interface device movable to generate a second signal indicative of a desired lift velocity and a third signal indicative of desired tilt velocity, and a controller. The controller may be configured to command the lift valve arrangement to meter pressurized fluid based on the second signal, command the tilt valve arrangement to meter pressurized fluid based on the third signal and, when the first signal indicates that the actual tilt angle has entered a specified range of tilt angles during lifting, command the tilt valve arrangement to meter pressurized fluid based on the second signal as the actual tilt angle remains within the specified range.
公开/授权文献
- US20120321425A1 SYSTEM IMPLEMENTING PARALLEL LIFT FOR RANGE OF ANGLES 公开/授权日:2012-12-20