On Fri, Mar 13, 2015 at 4:08 PM, Graeme Pietersz <[email protected]> wrote:
> I am rather stunned (and a tad concerned) that cars need 100m lines of > code. Cars don't really need that much code. A luxury car could have electronic control modules in a lot of places you might not think of. I know I was surprised years ago when I happened to be in Detroit during the North American International Auto Show. One of the exhibits was a full sized, clear plastic model of a car with the wiring harnesses and control modules. Front to back, there was a front end lighting controller, front end suspension controller, engine, ignition and transmission controllers, ABS controller, instrument cluster, Heat/ventilation/AC, interior lighting and entertainment system controllers, a memory-power-mirror controller in the 2 side mirrors, a memory-power-seat controller in the 2 front seats, a power window and lock controller in the 4 doors, an overhead (sunroof and redundant controls for HVAC and entertainment systems) controller, back end lighting controller and back end suspension controller. All those modules have tiny computers each needing it's own software. Probably the entertainment system controller has the most software, then the engine controller. By comparison, my "grunt" car has engine, ignition, transmission and ABS controllers, an instrument cluster, a "remote keyless entry" controller and a radio/CD player unit. A lot less code. Probably the engine controller has the most software, then the radio/CD unit.
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