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:
Aug. 16, 2022
Filed:
Jun. 05, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Sridhar Kalivarapu, Canton, MI (US);
Robert Roy Jentz, Westland, MI (US);
Athira Vilson, Shelby Township, MI (US);
Herbert Thomas Meissner, South Lyon, MI (US);
Sitaram Rejeti, Farmington, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K 6/24 (2007.10); B60K 11/02 (2006.01); F01P 3/20 (2006.01); F01P 7/14 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); F02M 26/30 (2016.01); F02M 26/32 (2016.01); G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
B60K 6/24 (2013.01); B60K 11/02 (2013.01); F01P 3/20 (2013.01); F01P 7/14 (2013.01); F02D 41/0055 (2013.01); F02D 41/22 (2013.01); F02M 26/30 (2016.02); F02M 26/32 (2016.02); G07C 5/0808 (2013.01); B60Y 2200/92 (2013.01); B60Y 2306/05 (2013.01); F01P 2007/146 (2013.01); F01P 2060/00 (2013.01);
Abstract
Methods and systems are provided for a vehicle coolant circuit. In one example, the coolant circuit includes a heater core isolation valve (HCIV) where a status of the HCIV may be diagnosed by intrusively activating a positive temperature coefficient heater in a cooling loop in which the HCIV is arranged. A response of coolant temperature to heater activation may be used to determine a position of the HCIV.