Determining the source of a ground offset in a controller area network
US9589394B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2015 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jul 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2205/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Disclosed herein are a system and a related computer-executed method of locating a source of a ground offset in a network of electronic devices interconnected by a communication bus. An exemplary method detects signal voltages on the communication bus that are indicative of a ground offset condition, and saves voltage timestamps for the detected signal voltages such that each detected signal voltage has a respective voltage timestamp. Message timestamps are added to messages on the communication bus, such that each message has a respective message timestamp. The message timestamps are compared against the voltage timestamps to identify at least one of the electronic devices as a ground offset source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.