Control area network (CAN) bus fault detection
US10884069B2 · kind B2 · utility
2Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A CAN bus transceiver includes CAN bus fault detection circuitry that can provide detailed information to simplify the task of the service technician when there is a CAN bus fault. Voltage and current measurements of the CAN bus are made and from them a fault type is determined. A time-domain reflectometer monitors the CAN bus signals for transmitted and reflected signals and from them a distance to the fault is determined. Either or both values are provided to a service technician to allow error determination and correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.