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:
Sep. 26, 2023
Filed:
Mar. 12, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Takahiro Iida, Tokyo, JP;
Takafumi Suzuki, Ibaraki, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
The invention provides a technology for suppressing a delay in communication between a plurality of cores that perform parallel processing. In the invention, an ECUof a vehicle control systemincludes a plurality of coresand a shared memory. When transmitting data in the inter-core communication, a transmission side core-writes a counter value updated according to the data and a writing order to a buffer unitwhich is determined by a counter value managed for each communication system, which is stored in each of the plurality of buffer unitsprovided in the shared memory. When receiving data in the inter-core communication, a reception side core-reads data from the buffer unitin which the latest data for each communication system is stored, which is determined by the counter value stored in each of the plurality of buffer units