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.:

US 10220674 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 05, 2019

Filed:

Oct. 07, 2016
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);

Inventors:

David W. Cosgrove, Royal Oak, MI (US);

Hidekazu Hirabayashi, Ann Arbor, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/00 (2006.01); G01K 13/02 (2006.01);
U.S. Cl.
CPC ...
B60H 1/00735 (2013.01); B60H 1/00585 (2013.01); G01K 13/02 (2013.01); G01K 2013/026 (2013.01); G01K 2201/02 (2013.01);
Abstract

A vehicle heating, ventilating, and air conditioning (HVAC) system can reduce a load applied to a vehicle powertrain during certain conditions. The system can include a compressor operable based on a first target evaporator outlet (TEO) temperature map. Systems and methods can determine if an HVAC system is activated, and whether an engine water temperature meets a forced HVAC recirculation intake threshold. Responsive to determining that the engine water temperature meets the forced HVAC recirculation intake threshold, it can be determined if the engine water temperature meets a first threshold. Responsive to the recirculation mode air source being selected, determining if at least one measured vehicle condition meets predetermined criteria. Responsive to determining that the engine water temperature meets the first threshold, the compressor can be operated based on a second TEO temperature map, the second TEO temperature map including higher TEO temperatures than the first TEO temperature map.


Find Patent Forward Citations

Cosgrove, David. (2019). Target evaporator outlet temperature maps for vehicle air conditioning control (U.S. Patent No. 10220674). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10220674

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