How would you make an airbrake for a car that is activated by the brake light signal ?

[Piotrsko]

Or even really old school: an offset weight on a shaft that's free to rotate and activate a switching device in porportion to rotation. Brake controllers had this back in the '70s

Down side is it activates sometimes during non braking decel, but adding brake light requirements would tend to solve that.

[freebeard]

The accelerometer is already integrated to the SBC.

[j-c-c]

If the air brake adds any DF component when actuated, and if it's triggered by a brake application signal, I would think a gradual release control signal would be best for vehicle control and to maintain stability and driver confidence. I would think stopping in the wet say at speed DF would be certainly helpful if balanced well, but by simply letting off the brakes as one might do when turning, the sudden loss of DF would be a disadvantage and a bit scary.

[Piotrsko]

Unless there's a cornering method I am not aware of then releasing brakes should mean you're slow enough for going around the corner unassisted: dry ,wet or icy.

Otherwise properly designed drag devices should be set to ensure the pointy end strays forward.

[j-c-c]

I suspect your knowledge and concept of a "traction Circle" is limited then?

"The traction circle is a visual mathematical way of illustrating how much grip a particular car/tire has on the road, and how it can be used. It’s a simple way of visualizing how acceleration, braking, and turning affect how much grip your tires have, and the relationship between each of these."

Best to read up on it and get back to us.

[Piotrsko]

Naw kinda useless on a 4ton truck towing a 5th wheel in snow.

[freebeard]

"The traction circle is a visual mathematical way of illustrating how much grip a particular car/tire has on the road, and how it can be used. It’s a simple way of visualizing how acceleration, braking, and turning affect how much grip your tires have, and the relationship between each of these."

[Drifting] 'Do I mean nothing to you?'

[Piotrsko]

Could be a correlation between sticky and whatever is going on during drifting but i betcha thats hard to quantify or even predict accurate

[j-c-c]

Originally Posted by Piotrsko

Naw kinda useless on a 4ton truck towing a 5th wheel in snow.

If you cannot develop any useful DF, any sought induced drag will also likely have a similar result, all which has little to do with the issue I noted of suddenly losing any DF under braking when triggered only by vehicle brake application.

[j-c-c]

Originally Posted by freebeard

[Drifting] 'Do I mean nothing to you?'

Decipher please.