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.

Date of Patent:
Oct. 07, 2025

Filed:

Jun. 27, 2023
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Hideaki Bunazawa, Nagoya, JP;

Shintaro Mukogawa, Nagoya, JP;

Rikako Zenibana, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07C 5/08 (2006.01); G06F 18/2413 (2023.01);
U.S. Cl.
CPC ...
G07C 5/0816 (2013.01); G06F 18/24137 (2023.01); G07C 5/0808 (2013.01);
Abstract

A vehicle diagnostic system includes processing circuitry and a storage device. The storage device stores data of a learned model and cluster data created by inputting, to the learned model, pieces of sound data recorded using vehicles in which types of anomalies are different from each other and identified, outputting the pieces of generated data, and clustering, for each of the types of anomalies, a loss variable indicating a magnitude of an error in each of the variables in each piece of the generated data. The processing circuitry is configured to execute a loss calculation process that inputs diagnostic sound data of a target vehicle to the learned model and calculates the loss variable in the generated data and a diagnostic process that checks data of the loss variable calculated through the loss calculation process against the cluster data and outputs a diagnosis result of the target vehicle.


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