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. 31, 2020
Filed:
Oct. 19, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
Franco Ragazzi, Ann Arbor, MI (US);
James George Gebbie, Rochester Hills, MI (US);
Donald Peter Schneider, III, Commerce Twp, MI (US);
Alan Douglas Wallington, Livonia, MI (US);
William Stewart Johnston, South Lyon, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicular climate control system may include a coolant subsystem configured to circulate coolant between an engine, a thermal generator, and a cabin heat exchanger, and a controller. The controller may be configured to, responsive to an air inlet temperature of the heat exchanger exceeding a threshold, retard engine spark timing to increase heat generation. The threshold may be defined by a quotient of (i) a difference between a discharge temperature target and the air inlet temperature and (ii) a thermal effectiveness parameter that is based on an air flow rate and a coolant flow rate.