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:
Jul. 08, 2025
Filed:
Jun. 17, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Ryusuke Sahara, Hitachinaka, JP;
Yoshitaka Tokunaga, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
To apply an on-board electronic controller having a relay control driver circuit for performing ON/OFF control of a relay that connects and shuts off a wire from a battery. The on-board electronic controller includes: a switch circuit that is connected to an output unit of the relay control driver circuit to draw out a current; and a control circuit that activates the switch circuit when an abnormality occurs in the vehicle, to cause the switch circuit to draw out the current from the output unit so as not to turn on the relay. This prevents sticking of the relay to ON even in a case where an output harness of a relay control driver is short-circuited to another signal harness or a power supply and GND line.