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:
Nov. 30, 2004
Filed:
Jun. 18, 2002
Scott Evart Blackburn, Temperance, MI (US);
Eric Keith Manning, Toledo, OH (US);
Dana Corporation, Toledo, OH (US);
Abstract
A method and apparatus for preserving a starter/alternator in an I.C. engine system installation from repeated operation in the starter mode by detecting and preventing an I.C. engine stall by disabling the generator function of the starter/alternator. The system describes a method of comparing the detected rotational speed of the starter/alternator in generator mode with a reference rotational incipient stall speed of the system I.C. engine. If the I.C. engine speed falls below a threshold stall speed, the generator function of the starter/alternator is disabled. In addition, a second detected speed of the I.C. engine is detected following the disabling of the generator function to determine if the I.C. engine has resumed an engine speed above a second threshold speed, whereupon the generating function is restored.