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. 23, 2020
Filed:
Oct. 30, 2018
Subaru Corporation, Tokyo, JP;
Tomoo Sarukawa, Tokyo, JP;
Masami Yamamoto, Tokyo, JP;
Ringo Shimada, Tokyo, JP;
Hiroto Asai, Tokyo, JP;
Yo Masuda, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
An external heater operation determination system includes, in a vehicle: a first device to be heated by an attached external heater; a second device, separate from the first device, to be cooled by a refrigerant; a circulation device configured to circulate the refrigerant through a circuit; and a temperature detection device that is configured to detect a temperature of the refrigerant and disposed such that if the refrigerant is not circulating through the circuit, the temperature of the refrigerant detected by the temperature detection device in the circuit does not rise even if the external heater is operating, whereas if the refrigerant is circulating through the circuit, the detected temperature of the refrigerant changes. The external heater operation determination system includes a determination device able to determine that the external heater is not operating on a basis of a change in the temperature after the circulation of the refrigerant.