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:
Nov. 16, 2021
Filed:
Jan. 27, 2020
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Harufumi Muto, Miyoshi, JP;
Akihiro Katayama, Toyota, JP;
Yosuke Hashimoto, Nagakute, JP;
Junji Hyodo, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
To estimate an engine cooling water temperature, four learned neural networks (A,B,C, andD) are stored, in which weights are learned for the four states of whether the grille shutter () is opened and whether air blown by the blower () circulates through the air-conditioning use heater (). The engine cooling water temperature is estimated using any one of the learned neural networks selected from among the four learned neural networks (A,B,C, andD). An abnormality of the engine cooling water recirculation system is detected based on the estimated value of the engine cooling water temperature.