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. 03, 2012
Filed:
Feb. 29, 2008
Douglas James Carlton, Peoria, IL (US);
Corwin Eugene Storer, Bartonville, IL (US);
Bradley John Will, Peoria, IL (US);
Eric John Schultz, Washington, IL (US);
Douglas James Carlton, Peoria, IL (US);
Corwin Eugene Storer, Bartonville, IL (US);
Bradley John Will, Peoria, IL (US);
Eric John Schultz, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method for indirectly detecting a movement of a machine and a failure of a speed sensor is disclosed. The method may include receiving an operator input signal, and determining a first factor based on the operator input signal. The method may also include measuring a machine operation parameter, and determining a second factor based on the machine operation parameter. The method may further include identifying a movement of the machine if the first factor is out of a first threshold range and the second factor is out of a second threshold range for at least a first threshold length of time. The method may also include determining a speed sensor failure if the movement of the machine is identified and no speed is detected by the speed sensor for at least a second threshold length of time.