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:
Dec. 10, 2019
Filed:
Jul. 26, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
Tyler Kelly, Plymouth, MI (US);
Douglas Raymond Martin, Canton, MI (US);
Julia Helen Buckland, Commerce Township, MI (US);
John Eric Rollinger, Troy, MI (US);
Benjamin M. Rocci, Plymouth, MI (US);
Michiel J. Van Nieuwstadt, Ann Arbor, MI (US);
Anil Shah, Canton, MI (US);
Emil G. Serban, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for expediting exhaust particulate filter regeneration. In one example, an engine controller may generate an exotherm at the filter by operating engine cylinders with air-fuel imbalance while using electric assist to a turbocharger to meet a torque demand and raise an intake airflow to enhance the effect of the exotherm. Once heated, the filter may be regenerated by flowing extra air to the exhaust via an air pump and injecting extra fuel to an exhaust passage via an exhaust injector.