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:
May. 11, 2010
Filed:
Jun. 29, 2007
Robert Wayne Lindsey, Washington, IL (US);
Dustin Craig Selvey, Peoria, IL (US);
Arthur Wild, Chillicothe, IL (US);
Robert Roy Sychra, Washington, IL (US);
Robert Wayne Lindsey, Washington, IL (US);
Dustin Craig Selvey, Peoria, IL (US);
Arthur Wild, Chillicothe, IL (US);
Robert Roy Sychra, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Systems and methods are disclosed for detecting a faulty ground strap connection for a machine hosting a high voltage system. In one embodiment, a fault detection and compensation system includes a ground strap, a DC power supply electrically referenced to a machine frame, a leakage detection switch connected to the machine frame, a current source controlled by the leakage detection switch, and a voltage measuring device that measures an offset voltage. The fault detection and compensation system further includes a leakage detection and compensation controller that compensates for the unbalanced fault condition by controlling the leakage detection switch and the current source, and determines whether the ground strap is properly connected to the machine frame.