Emergency brakes???

Topic: Emergency brakes??? (Read 1952 times) previous topic - next topic

Emergency brakes???

Reply #15 – December 04, 2012, 12:48:12 PM

Well in your cars that is most likely a GIVEN as fuse links seem to haunt you. Just kidding. No what happens is they are set with battery voltage and do not need power to hold. So if a fuse link blows in your car it wont roll down the HILL. THANK GOD!!!

Emergency brakes???

Reply #16 – December 04, 2012, 01:34:54 PM

Quote from: 86cougar;403910

I've never even heard of an "electric brake" before. What happens if you park on an incline and for some reason your battery dies? Is there a set-up for Ford Cougars and Tbirds? Thanks!

Tom, I know your never going to let me live it down. Ok, so they ARE set on battery voltage. So, what happens If for some reason your battery dies?

Emergency brakes???

Reply #17 – December 04, 2012, 07:17:34 PM

NO WORRY'S 86 just funnin around. Everything is good!!!

Well the one i want is set with battery voltage and then released with battery. In either mode the battery is not in the circuit. Other wise it would drain down the battery overnight. And if it had to hold the pintle open with battery if it failed you would be stuck with the brakes on i would imagine. I have to research this further. But if yiu read the info about the 50 DODGE unit it explains it has no current draw in either mode. That is what i want but only in 12 VOLTS OF COURSE!!!

Emergency brakes???

Reply #18 – December 04, 2012, 07:29:31 PM

You've probably already seen this, but here is my hydraulic hand brake setup. It has its own master cylinder and is simply piped in line with the existing rear brake line. When it is not in use fluid passes through it like its not there. You could obviously install it in a more conventional position if your not planning to use it for racing. This one is made by CNC.

Emergency brakes???

Reply #19 – December 04, 2012, 09:17:58 PM

It seems like it wouldn't be very hard to find a manual valve to put inline with the rear feed. Hold the brake, close the valve, brake set, open valve, brake released. Old Saabs had a separate caliper on each front brake that was a parking brake. I can't remember if they were hydraulic or not, I haven't worked on a Saab since 2001.

An electric would still be coolest, I think.
I'm thinking about a machined aluminum block, with the cable leading in, an actuator motor that pulls the cable tight, and maybe the cable is attached to a ratcheting shaft with a release solenoid on the fingers. The motor pulls to a set amperage then stops and depowers allowing the cable to rest against the lock. To release, the motor actuates again simultaneously with the solenoid. The actuator pulls to max amperage (won't take long as the cable is already tight) then releases (with the solenoid powered) allowing the cable to fully relax, the cable touches a limit switch and the solenoid depowers.

Emergency brakes???

Reply #20 – December 05, 2012, 05:02:24 AM

My buddy has relatively new VW Passat and it's equipped with electric parking brake. It works like a servo and keeps locked in end positions. I guess it has a worm gear, because it takes about 2 seconds to engage or disengage. Of course, this setup doesn't need permanent power.

Emergency brakes???

Reply #21 – December 05, 2012, 06:45:36 AM

Here is what i am going for.

http://www.mico.com/store/brake-locks

Emergency brakes???

Reply #22 – December 05, 2012, 07:30:27 AM

those prices are insane....

Emergency brakes???

Reply #23 – December 05, 2012, 08:22:20 AM

That is pricey, but its nice that it automatically maintains pressure

Emergency brakes???

Reply #24 – December 05, 2012, 10:31:57 AM

I know you're pretty savvy with whipping up some neat little do-dads maybe you can whip up somthing that connects to the factory pedal like a micro switch or somthing that's on somewhat of an isolated circuit that dowesn pull to much of a draw on the battery like a cellphone charger. Use som small throw actuators like some iroc body styled camaros used on their hatch to shut it? Just an oddball idea. You don't need a lot of pull just enough though maybe some door lock actuators? Doesn't have to be a constant power that way. Thoughts?

Emergency brakes???

Reply #25 – December 06, 2012, 01:11:34 AM

thats what i was thinking also, should not "need" to draw power to lock in, could be like a mechanical paw so to speak.

Emergency brakes???

Reply #26 – December 06, 2012, 09:12:31 AM

I agree, prices are insane.

Emergency brakes???

Reply #27 – December 06, 2012, 01:19:52 PM

Not really expensive as long as it works.

Emergency brakes???

Reply #28 – December 08, 2012, 11:30:46 AM

I used to hang out with some rock crawler guys. They have problems with getting e-brakes to work with there big 38" tires and stock toyota brakes.

Aot of them buy a disc brake assembly that bolts directly to the driveshaft that you mount a caliper onto either your rear end or tail housing.this was is simple to add, and also fairly cheap. I personally wouldn't want to add the rotational mass to the driveline, but with hydralics on a fixed brake, I really don't see it having to be that large or strong for a emergency stop, or kepping the car put.