Circuit for activating a CAN (car area network) bus control unit
US6812589B1 · kind B1 · utility
3Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Dec 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention describes a circuit for activating a control unit such as an ABS controller in a vehicle by way of a CAN bus, with the ignition turned off, which is in particular characterized by a first input for a logic activation signal for the control unit, an input filter for suppressing disturbing pulses in the activation signal, and a device for producing an output signal (CAN_WU) that activates the control unit when a predeterminable number of activation signals is recorded within a predeterminable duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.