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[hoj]

Here's one to make you all laugh, laugh because i don't actually know the exact real answer.
My grandson was in the car today with me when i put the cruise control on and he asked the inevitable question how does it work?
I told him the car is driving itself and its magic
Thing is the more i thought about it the more i realised that a new topic on OOF was on the cards.
So guys how does it actually work? and moreso how does it know when your going either up a hill or down a hill? does it apply the brakes or does it limit the fuel (or both) or lastly is it really MAGIC?

[Lizzie_Zoom]

It's magic to me!

[Del Boy]

If you have nothing better to do read this 
http://wiki.answers.com/Q/How_does_cruise_control_work

[HolyCount]

If you have nothing better to do read this 
http://wiki.answers.com/Q/How_does_cruise_control_work

Magic's better 

[Del Boy]

If you have nothing better to do read this 
http://wiki.answers.com/Q/How_does_cruise_control_work

Magic's better 

[Jimbob]

Lol, and dont forget

cable v drive by wire
auto v manual

[hoj]

Hahahahaha hope mine doesn't go wrong i would hate it to be a [size=14]BEAR [/size]to fix

[Debs.]

Oh surely it`s pure magic; the work of those little underbonnet fairies! 

[Tonka.]

Mines MAGIC !!!!

I say to my son,

"Hubble bubble miley melf
Make the Mig drive itself"

and as if by magic it does 

[ScottieMV6]

If you have nothing better to do read this 
http://wiki.answers.com/Q/How_does_cruise_control_work

That actually makes interesting reading.

I thought that cruise control systems did use the brakes? I would swear that I felt mine on my old car dabbing the brakes when going downhill.

I assumed it used the ABS system to do this?  :-/