2 ms·
> I thought they would be made up of individual systems talking to each other in messages. That's how my 2011 BMW is. It's not exactly the most reliable car, b
by Unklejoe 7y ago
> I thought they would be made up of individual systems talking to each other in messages.
That's how my 2011 BMW is. It's not exactly the most reliable car, but I'd imagine things would be much worse if it weren't designed that way.
For example, my body control module (FRM) just recently died, but the engine still runs and the car can still be driven, just none of the lights work.
The non-critical systems communicate with the powertrain bus through a special CAN gateway in an attempt to isolate the systems.