Controller area network sample point detection
US11288217B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 27, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Oct 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The transmission of a recessive bit in a CAN message from a transmitting electronic control unit (ECU) is detected, over a controller area network. A dominant pulse is injected onto the network after a delay time into the detected recessive bit. Behavior of the transmitting ECU is detected, and a sample point for the transmitting ECU is characterized based upon the detected ECU behavior. An action signal is generated based upon the characterized sample point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.