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why is it called drive by wire when there's no wire?

It refers to the linkage between what ever adjusts the throttle and the actual throttle. So it can either be a mechanical linkage (cable, linkage, etc) or a wire that connects the computer to the throttle.
 
i thought the term started out as 'fly by wire' in aircraft - replacing direct mechanical control with electronic control.
 
Drive by wire refers to replacing a direct mechanical linkage with a computer and software signal driven servo, the term came from aircraft in the 50s (fly by wire).
 
speedy2 said:
BWAHAHA. I love when car companies try to market something like they invented the technology.
Click to expand...
Hey, I saw an ad on the weekend for a 2009 Kia forte or something and the person was saying how seriously Kia takes safety and it has tire pressure monitoring. No comments about how every single car in the US in 2009 had TPMS 🙂
 
The term was just carried over from the military coined "fly by wire" when they moved away from mechanical linkages to strictly computer controlled, which was first done in the early 70's. There were already computers, although pretty crude by todays standards, in aircraft previous to this so "fly by computer" wouldn't really make sense. It was meant to specifically designate no mechanical linkage attached to the controls themselves, but obviously wires. Makes sense that they would carry the name over when it was brought to vehicles since the engineering community in general is pretty connected - new technologies spread to a lot of different industries etc. And of course marketing is gonna jump all over it because it's catchy.

I think when most people hear the word "wire", they initially associate it with electrical wire, and not, say, piano wire.
 
The first production fly by wire airliner was the Concorde, 1969.

There were analog fly by wire military aircraft in the 50's.

The first all digital FBW airliner was the A320, 1984.
 
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