ECU ground fault isolation for a delay system
US10429428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Mar 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting a ground fault in a faulty electronic control unit. A ground fault detection technique executed by a processor is enabled. The processor determines a message count for each respective electronic control unit transmitted during a ground offset condition over a predetermined time period. The message count includes messages communicated within a communication bus having a measured voltage at least a predetermined voltage value above an expected voltage value. The message counts for each respective electronic control unit are normalized. The faulty electronic control unit is identified as a function of the normalized message counts. A fault signal is output to identify the fault electronic control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.