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. 14, 2015
Filed:
May. 04, 2012
Clayton M. Howell, Whiteland, IN (US);
William D. Meyer, Columbus, IN (US);
Clayton M. Howell, Whiteland, IN (US);
William D. Meyer, Columbus, IN (US);
Cummins IP, Inc., Minneapolis, MN (US);
Abstract
An approach to tracking the engine off time of a system including an internal combustion engine. A timer apparatus may electrically couple to the engine control unit by way of a power connection that provides electrical power to the timer apparatus from the engine control unit. The timer apparatus may include a monitor module that monitors the power connection. A timer module may begin a time interval in response to the power connection transitioning from a powered state to an unpowered state. The timer module may end the time interval in response to the power connection transitioning from the unpowered state to the powered state. A communication module may communicate the time interval to the engine control unit by switching the power connection between the high state and the low state.