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:
Mar. 20, 2012
Filed:
Sep. 05, 2008
Ian J. Mac Ewen, White Lake, MI (US);
Martin L. Hall, Rochester Hills, MI (US);
Lawrence O Murray, White Lake, MI (US);
Julia C. Grow, Whitmore Lake, MI (US);
Richard A. Van Camp, Brighton, MI (US);
David Edward Prout, Linden, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Ian J. Mac Ewen, White Lake, MI (US);
Martin L. Hall, Rochester Hills, MI (US);
Lawrence O Murray, White Lake, MI (US);
Julia C. Grow, Whitmore Lake, MI (US);
Richard A. Van Camp, Brighton, MI (US);
David Edward Prout, Linden, MI (US);
Igor Anilovich, Walled Lake, MI (US);
Abstract
A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length.