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:
Sep. 27, 2022
Filed:
Oct. 23, 2018
Guangzhou Automobile Group Co., Ltd., Guangdong, CN;
Jiao Zeng, Guangdong, CN;
Yanju Qiao, Guangdong, CN;
Zhenxiao Bai, Guangdong, CN;
Xuetong Lian, Guangdong, CN;
Qingpeng Su, Guangdong, CN;
Jujiang Liu, Guangdong, CN;
GUANGZHOU AUTOMOBILE GROUP CO., LTD., Guangzhou, CN;
Abstract
The present disclosure relates to a thermostat fault diagnosis method. The method includes: a current environment temperature and a boundary temperature and initial opening temperature corresponding to the current environment temperature are acquired; engine thermal equilibrium state data determined based on coolant temperature change data in an engine are acquired; a current coolant temperature is acquired; and according to the engine thermal equilibrium state data and a relationship between the current coolant temperature and the boundary temperature and initial opening temperature, it is judged whether a thermostat is faulty.