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:
Aug. 07, 2012
Filed:
Aug. 29, 2008
Matthew J. Beschorner, Plainfield, IL (US);
Jason J. Podany, Washington, IL (US);
Aleksandar M. Egelja, Naperville, IL (US);
Mikhail A. Sorokine, Naperville, IL (US);
Benjamin Yoo, Itasca, IL (US);
Manu Murthy, Chicago, IL (US);
Matthew J. Beschorner, Plainfield, IL (US);
Jason J. Podany, Washington, IL (US);
Aleksandar M. Egelja, Naperville, IL (US);
Mikhail A. Sorokine, Naperville, IL (US);
Benjamin Yoo, Itasca, IL (US);
Manu Murthy, Chicago, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A control system for a machine is disclosed. The control system may have a pump, a low pressure reservoir, and at least one actuator connected to receive fluid pressurized by the pump and discharge fluid to the low pressure reservoir. The control system may also have a bypass passage situated to allow fluid to bypass the at least one actuator, and a warmup valve disposed within the bypass passage and being movable between a flow-passing position and a flow-blocking position. The control system may further have a hydraulic temperature sensor configured to generate a signal indicative of a temperature of the fluid, and a controller in communication with the pump, the warmup valve, and the hydraulic temperature sensor. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.