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PLee
Joined: 08 Dec 2003
Posts: 3713
Location: Brooklyn, NY9/22/14 11:28 AM |
Some cars can sense water on the brake rotors and, under those circumstances, will lightly apply the brakes to dry them off. Pretty cool.
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ErikS
Joined: 19 May 2005
Posts: 8337
Location: Slowing boiling over in the steamy south, Global Warming is real9/22/14 3:46 PM |
Car brakes are only grabby when wet and cold. Once your car is moving there is enough pad drag that even when not braking the rotors stay very warm.
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Andy M-S
Joined: 11 Jan 2004
Posts: 3377
Location: Hamden (greater New Haven) CT9/22/14 6:34 PM |
Grabby
Eric, you're likely correct, even though my sense of the grab isn't that it slips and then grabs; rather, that the stopping is *more* effective (and more sudden) when it's wet. As I said, I suspect something to do with the material, and other than that I have nothing to contribute. Of course, it could all be a matter of perception--and I'm not nearly as sensitive when braking with a foot as I am when using my hands.
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Sparky
Joined: 08 Dec 2003
Posts: 19083
Location: PDX9/22/14 6:38 PM |
What about the rust skim coat on your rotors? Like when maybe have not driven the car in a few days and it rained or way very high humaditty.
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ErikS
Joined: 19 May 2005
Posts: 8337
Location: Slowing boiling over in the steamy south, Global Warming is real9/22/14 7:13 PM |
That can be a good point except my cars do it with just a washing in the drive.
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April
Joined: 13 Dec 2003
Posts: 6593
Location: Westchester/NYC9/23/14 9:10 AM |
quote:
Some cars can sense water on the brake rotors and, under those circumstances, will lightly apply the brakes to dry them off. Pretty cool.
I do that after riding through a wet spot.
Lightly drag the brake to wipe the water off the rim.
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