The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2013
Filed:
Apr. 13, 2009
Duqiang Wu, Eden Prairie, MN (US);
G. Clark Fortune, Farmington Hills, MI (US);
Aaron H. Jagoda, St. Louis Park, MN (US);
John R. Kess, Bloomington, MN (US);
Thomas J. Stoltz, Southfield, MI (US);
Paul Brenner, Chaska, MN (US);
Benjamin Morris, Ann Arbor, MI (US);
Duqiang Wu, Eden Prairie, MN (US);
G. Clark Fortune, Farmington Hills, MI (US);
Aaron H. Jagoda, St. Louis Park, MN (US);
John R. Kess, Bloomington, MN (US);
Thomas J. Stoltz, Southfield, MI (US);
Paul Brenner, Chaska, MN (US);
Benjamin Morris, Ann Arbor, MI (US);
Eaton Corporation, Cleveland, OH (US);
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.