can we install a button for ((P)) parking brakes

[CTScott]

Originally Posted by CrankyOldMan

I wouldn't use an electric solenoid, because it would have to be constant-duty. Too much current draw when driving to be practical.

yarismo: Here's a link to what I'm talking about: http://auto.howstuffworks.com/auto-p.../air-brake.htm

Our ebrakes don't work like truck ones, so the solenoid would only need to pull the cable to turn them on. Using a latching solenoid would allow them to stay pulled without power.

[CrankyOldMan]

Originally Posted by CTScott

Our ebrakes don't work like truck ones, so the solenoid would only need to pull the cable to turn them on. Using a latching solenoid would allow them to stay pulled without power.

Aah, I didn't realize there were such things as latching solenoids. I was thinking that the only way to make it work would be either a continuous duty solenoid (drawing power when the car was off) or converting to a truck-like system by adding a spring to force the hand brake to be on by default, and turning it off with a pneumatic actuator when operating.

I'm still pretty green with my engineering skill set, so it's good to hear an alternative solution from another engineer.