CAN

CAN bus (for controller area network) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer.

http://en.wikipedia.org/wiki/Controller_area_network

FMS standard

In order to be compliant with FMS (Fleet Management System) standard, truck manufacturers implement a specific gateway ECU which reads the information required by the standard from all the suitable places and thru all the required standard, complying with internal vehicle-brand-specific protocols, and makes all these information available thru a specific CAN bus to which the tachometer device is connected. In this way, an FMS compliant digital tachometer devices can be easily connected to any FMS compliant truck. Extracted from

Links

http://marco.guardigli.it/2010/10/hacking-your-car.html

CAN chips

FMS links

Smart tacograph EU

CAN (last edited 2023-05-26 13:41:45 by 127)