Invention Grant
- Patent Title: Hydraulic system including priority based valve sequencing
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Application No.: US12422881Application Date: 2009-04-13
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Publication No.: US08474364B2Publication Date: 2013-07-02
- Inventor: Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
- Applicant: Duqiang Wu , G. Clark Fortune , Aaron H. Jagoda , John R. Kess , Thomas J. Stoltz , Paul Brenner , Benjamin Morris
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Rader, Fishman & Grauer PLLC
- Main IPC: F15B13/07
- IPC: F15B13/07 ; F15B11/20

Abstract:
An exemplary hydraulic system includes a plurality of digital valves, each valve fluidly connectable to a corresponding hydraulic load. The digitals valves are operable to fluidly connect the corresponding hydraulic load to a pressure source. The hydraulic system further includes a digital controller operably connected to the plurality of digital valves. The digital controller is configured to assign a priority level so that it is associated with each of a plurality of hydraulic loads, and to formulate a pulse width modulated control signal based on the assigned priority levels. The digital controller transmits the control signal to the plurality of digital valves for controlling the operation of the valves.
Public/Granted literature
- US20090255245A1 HYDRAULIC SYSTEM INCLUDING PRIORITY BASED VALVE SEQUENCING Public/Granted day:2009-10-15
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