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:
Jan. 04, 2011
Filed:
Mar. 30, 2007
Scott Richard Schuricht, Edwards, IL (US);
Douglas I. Norman, Washington, IL (US);
Paul W. Peresta, Dunlap, IL (US);
Arvil Duane Wilson, Pekin, IL (US);
Scott Richard Schuricht, Edwards, IL (US);
Douglas I. Norman, Washington, IL (US);
Paul W. Peresta, Dunlap, IL (US);
Arvil Duane Wilson, Pekin, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A fan speed control system for a machine is disclosed. The control system may include a fan to provide a flow of coolant to the machine. The system may further include a first sensor configured to generate a first signal indicative of an operational parameter of the machine, a second sensor associated with the fan to generate a second signal indicative of an actual speed of the fan, and a controller communicatively coupled to the fan, the first sensor, and the second sensor. The controller may be configured to generate a third signal indicative of a desired fan speed based on the first signal, and a fourth signal indicative of a difference between the desired fan speed and the actual fan speed. The controller may drive the fan based on the third signal and the fourth signal.