Re: LF: LF "Mobile" ( was : "NM" on 136177 )

[wolf_dl4yhf <dl4yhf@freenet.de>]

Hello Stefan, Chris, and the group,


Chris wrote:

>
Actually, I think they invented it for good economic reasons. I think 
it's got to the point where it's cheaper to have two power wires plus 
two signal wires going from the dashboard to the back of the car, rather 
than the traditional wiring loom for tail lights, brake lights, 
indicators, and maybe rear screen heater, wiper and washer.
<

Exactly that's it: Minimize the amount of copper wiring. 
Microcontrollers with integrated CAN bus controller (that's one of the 
networks widely used in cars) are incredibly cheap these days. 
Furthermore, having all those controllers connected to one common 'bus' 
(or, at least in German cars, two buses) simplifies testing... as long 
as the bus (network) itself isn't the reason for other trouble ;-) .
[but it keeps hundreds of software developers employed, hi]

Cheers,
  Wolf  DL4YHF .