3 ms·
> I think it's fair to say cars today are packed with more and more full blown cpus since 2010 onwards ISO standardized the CANbus, which is a networked messag
by calvinmorrison 6y ago
> I think it's fair to say cars today are packed with more and more full blown cpus since 2010 onwards
ISO standardized the CANbus, which is a networked message-based protocol for components talking to eachother. It was first developed by Bosch. Intel started making chips in the early 90s.
By the time you get to the Saab 9-5 (1999) you have CANBus running all over the car. The drivers seat? There's 5 motors, a heater, adjusters, buttons,etc. That all talks to the central computer and can be diagnosed by talking to it with a diagnosis device you plug into the OBD2 connector. this is fantastic because the microcontroller can detect the position of the seat for example - run tests and use hall effect sensors to determine what is the problem. This sucks if you don't have a TECHII diagnosis tool.
So it's not new - it's in fact very established!
- beiller 6y agoOBD2 is what I'm talking about. Required by law. But guess which auto manufacturer has the port accessible, with the pins only outputting power and ground today ( no data )? It's a new trend. Data now is sent wirelessly over a proprietary protocol.
- calvinmorrison 6y agoYeah obd was standardized by like, 97? However there were multiple diagnostic systems that predated it. OBD will send data, all sorts, as its used primarily for pulling codes and doing emissions testing