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:
Oct. 05, 2021
Filed:
Dec. 26, 2018
Mitsubishi Electric Corporation, Tokyo, JP;
Yoshikazu Ishida, Tokyo, JP;
Shozo Kanzaki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An electric charging control device is obtained which detects welding abnormality of an electric contactor(s) along charging passages from an electric charging plug reaching a main battery; electric charging contactors and main electric contactors are connected in series; a first voltage monitoring circuit connected between power-supply points Pand N, a second voltage monitoring circuit connected therebetween, and a voltage-level detection circuit connected between the midpoints Pand Nare provided for producing a first voltage detection signal DET, a second voltage detection signal DET, and a main voltage detection signal DET, each of which is a respective determination logic signal responding to the presence or absence of a monitored voltage; and a test voltage is received from either one of the main battery and a ground-based electric charging power-source apparatus, so that the presence or absence of welding abnormality in any one of the contactors is determined.