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:
Jun. 04, 2013
Filed:
Jun. 18, 2010
James M. Perrin, Livonia, MI (US);
Rebecca J. Darr, Milford, MI (US);
Paul Jasinkiewicz, Northville, MI (US);
Jason Daniel Mullins, Brighton, MI (US);
Kyle E. Crawford, Howell, MI (US);
James M. Perrin, Livonia, MI (US);
Rebecca J. Darr, Milford, MI (US);
Paul Jasinkiewicz, Northville, MI (US);
Jason Daniel Mullins, Brighton, MI (US);
Kyle E. Crawford, Howell, MI (US);
Abstract
A dosing control system for a vehicle includes a current storage module, an adaption triggering module, and an adaption ending module. The current storage module estimates an amount of ammonia stored by a selective catalytic reduction (SCR) catalyst. The adaptation triggering module triggers a reduction of the amount of ammonia stored by the SCR catalyst to zero when a first amount of nitrogen oxides (NOx) measured by a first NOx sensor located downstream of the SCR catalyst is greater than a predicted value of the first amount of NOx. The adaptation ending module selectively ends the reduction and enables injection of dosing agent based on a comparison of the first amount of NOx with a second amount of NOx upstream of the SCR catalyst.