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. 12, 2024
Filed:
Oct. 09, 2020
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yoshiaki Mizuhashi, Hitachinaka, JP;
Mitsuhiko Watanabe, Hitachinaka, JP;
Yoshitaka Abe, Hitachinaka, JP;
Mamoru Ogura, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
Provided is a redundant system capable of executing a start request received during update of a microcomputer control program even when an external nonvolatile memory is employed in a redundant system in which one load is controlled by a plurality of control circuits having a redundant configuration, the redundant system being low in cost and excellent in responsiveness. In the redundant system that controls one load by a plurality of control systems having a redundant configuration, when an update program signal for the plurality of control systems is received, update of a control program for each of the plurality of control systems in a predetermined order is individually executed, and when a start request of the load is received during the execution of the update of a control program of one predetermined system, the load is controlled by a system other than the one predetermined system, and during the control, the update of the control program of the one predetermined system is continued.