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. 04, 2017
Filed:
Dec. 19, 2014
Phu Tran, Renton, WA (US);
David Randall Wrigley, Kirkland, WA (US);
Suresh Kumar, Issaquah, WA (US);
Zachary Slaton, Seattle, WA (US);
Michael T. Russell, Kirkland, WA (US);
Phu Tran, Renton, WA (US);
David Randall Wrigley, Kirkland, WA (US);
Suresh Kumar, Issaquah, WA (US);
Zachary Slaton, Seattle, WA (US);
Michael T. Russell, Kirkland, WA (US);
PACCAR Inc, Bellevue, WA (US);
Abstract
An on-board vehicle computing system stores values in a memory of a first engine control unit (ECU) and stores corresponding backup values in a memory of a second ECU. In this way, the second ECU provides data backup functionality for the first ECU's data. The system may retrieve a backup value from the first ECU and restore the corresponding value in the second ECU using the backup value. In one illustrative scenario, if an original engine ECU (EECU) fails and a replacement EECU is installed, the system can retrieve backup values for vehicle speed limiter (VSL) parameters from memory in a cab ECU (CECU) and update the corresponding data in the replacement EECU with the backup values.