Brake Controller mounted in trailer???? - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-30-2012, 11:10 AM   #1
Senior Member
 
Name: Michael
Trailer: 1993 Bigfoot 17 ftCB / 2011 Toyota Sienna
Ontario
Posts: 207
Brake Controller mounted in trailer????

I wonder if anyone has mounted a Brake Controller on the trailer?
For example, if someone was picking up a trailer with brakes, but had only the use of a tow vehicle with the 4 pin flat connector, would it be safe to temporarily install a Controller inside the trailer, or on the tongue, connecting to the brake light line, the break-away brake switch, and the trailer battery?
Obviously, it would take someone with some knowledge to run an adapter and some wiring, but it does seem to me that it might be better than travelling without the brakes.
This might be a viable temporary solution for a rushed trailer pickup - which does happen!
In a way, this would be operating somewhat like the self contained inertia activated hydraulic trailer brakes.
Has anyone tried this?
Mike .....>
__________________

__________________
Michael Pupeza is offline   Reply With Quote
Old 04-30-2012, 11:46 AM   #2
Senior Member
 
Greg H's Avatar
 
Name: Greg
Trailer: 72 Boler American
Indiana
Posts: 1,557
I doubt it.
__________________

__________________
Greg H is offline   Reply With Quote
Old 04-30-2012, 12:19 PM   #3
Senior Member
 
melissab's Avatar
 
Name: melissa
Trailer: 2012 Scamp 13 DLX
Florida
Posts: 1,372
The Wireless controllers work on a similar principal. The controller is mounted to the trailer tongue, Plugged into the tow vechicle and the trailer plugged into the controller. You use a remote in the tow vehicle to set it but once it's set you can put the remote away unless you need to change the settings. Here is a link to one.

Tekonsha Prodigy RF Brake Controller - Proportional - Trailer Mounted Tekonsha Brake Controller 90250
__________________
Melissa in Florida
2016 Honda Odyssey
melissab is offline   Reply With Quote
Old 04-30-2012, 12:31 PM   #4
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
I like your idea as we have two trailers and two different tow vehicles. It would be interesting if anyone has worked this out.
I looked at adding "Surge Brakes" to my Hunter but it would require major frame reworking to accomodate the new master cylinder. But there are kits on the market for adding surge braks.
__________________
Bob Miller is offline   Reply With Quote
Old 04-30-2012, 03:04 PM   #5
Senior Member
 
Sam and Jess's Avatar
 
Name: Sam
Trailer: 1977 Boler
Kansas
Posts: 105
We have the RF controller and got to test its versatility recently when we traded in our tow vehicle. The hardest thing about switching from the old SUV to the new truck was simply remembering to grab the remote from the glove box before trade-in! Once in the new truck, we simply plugged the remote into the vehicle's 12V outlet and it synced right up with the controller module mounted on the Boler's tongue.
__________________
:: photos of our latest Boler progress (or lack thereof) here ::
Sam and Jess is offline   Reply With Quote
Old 04-30-2012, 11:37 PM   #6
Senior Member
 
Name: Russ
Trailer: Scamp 16' side dinette, Airstream Safari 19'
California
Posts: 588
Mike,
I decided to get the RF trailer mounted unit when I made a trip out of town to pick up our Scamp. Before leaving home I installed the RV style plug on the back of our Jeep. I took a battery powered drill with me to affix the controller to the trailer tongue. I took me about 10 minutes to mount the unit to the trailer, and another 15 minutes to do the braking tests and adjustments once underway. The system works excellently, but costs more than the permanent ones.
Russ
__________________
ruscal is offline   Reply With Quote
Old 05-01-2012, 07:26 AM   #7
Senior Member
 
MCDenny's Avatar
 
Name: Denny
Trailer: Lil Snoozy
Michigan
Posts: 551
With a 4 pin connector the power to actuate the trailer brakes would have to come from the wire(s) that feeds the brake lights. That could be a lot of amps for pretty light gage wire, also could be issues blowing the TV's fuse.
__________________
MCDenny is offline   Reply With Quote
Old 05-01-2012, 08:44 AM   #8
Senior Member
 
Steve L.'s Avatar
 
Name: Steve
Trailer: 2003 Casita 16' SD
Michigan
Posts: 1,690
Registry
I think you might have a good idea for a new product. I looked around a bit but didn't find anything. The Tekonsha described above seems to require a 7 pin connection on the tow vehicle and you asked about something to work with only a 4 pin on the tow.

If the trailer has brakes then it has a 6 or 7 pin connector. I made a box that the trailer plugs into and uses the trailer's own battery to power the different lights (running, backup, turn signal) as well as lock the brakes. However the brakes are either on full or off. (I've since modified the box to add a toggle switch protector to the brake toggle to prevent accidently turning on the brakes.)

A smarter person could probably incorporate an accelerometer to modulate the brake voltage all from the trailer's own battery. The 4 pin would be just to run the brake and turn signal lights. I just don't know how long the average trailer's battery would last with the trickle drain of the accelerometer and occasional brake application. The 4 pin connector only supplies voltage when the tow vehicle's lights are used. I suppose you could tow with the lights on and try to siphon off some of that to run the accelerometer.
Attached Thumbnails
SBox.JPG  
__________________
Steve L. is offline   Reply With Quote
Old 05-01-2012, 10:36 AM   #9
Senior Member
 
Jon Vermilye's Avatar
 
Name: Jon
Trailer: 2017 Escape 21
Oswego, NY
Posts: 1,407
Registry
I see one problem - since the brake lights are being used to trigger the controller rather than the brake pedal switch, if you use your 4 way flashers when climbing a hill, combined with a 4 pin trailer connector, won't the brakes be applied as the lights flash?

As to the high current problem, I don't see it - most controllers use a separate sense & power wire - adequate sized wire could be used to connect the power connection to the trailer battery.
Jon Vermilye is offline   Reply With Quote
Old 05-01-2012, 12:12 PM   #10
Senior Member
 
Steve L.'s Avatar
 
Name: Steve
Trailer: 2003 Casita 16' SD
Michigan
Posts: 1,690
Registry
Quote:
Originally Posted by Jon Vermilye View Post
I see one problem - since the brake lights are being used to trigger the controller rather than the brake pedal switch, if you use your 4 way flashers when climbing a hill, combined with a 4 pin trailer connector, won't the brakes be applied as the lights flash?

As to the high current problem, I don't see it - most controllers use a separate sense & power wire - adequate sized wire could be used to connect the power connection to the trailer battery.
If your response was directed towards my hypothetical brake controller then I think you missed my point. I wasn't suggesting using the four prong to actuate the brakes, only to power the accelerometer. Traveling with the lights on in the tow would provide power constantly to the trailer. Using the turn signal or brakes brightens the rear lights.

I was suggesting that sensing deceleration and activating the brakes were two separate systems each getting their current from a different source.

I was also suggesting that the trailer brakes (electromagnets) be run from the trailer battery. One source I read (Electric Trailer Brake Guide to Electric Trailer Brakes & Brake Controls) says the trailer magnets use up to 3 amps per magnet or 6 amps per typical axle. It's only pulling amperage when decelerating (trailer brakes on) but it's not an insignificant drain.

But, it's all just theory anyhow...
__________________
Steve L. is offline   Reply With Quote
Old 05-01-2012, 01:15 PM   #11
Senior Member
 
Sam and Jess's Avatar
 
Name: Sam
Trailer: 1977 Boler
Kansas
Posts: 105
Whoops, missed the 4-pin part in the original post - never mind my recommendation above! (but, for anyone else considering brake controllers, the RF has absolutely been worth the extra cost for us).
__________________
:: photos of our latest Boler progress (or lack thereof) here ::
Sam and Jess is offline   Reply With Quote
Old 05-01-2012, 02:22 PM   #12
Senior Member
 
Jon Vermilye's Avatar
 
Name: Jon
Trailer: 2017 Escape 21
Oswego, NY
Posts: 1,407
Registry
Actually I was referring to the original post.
Jon Vermilye is offline   Reply With Quote
Old 05-01-2012, 04:05 PM   #13
Senior Member
 
Name: John
Trailer: gave up!!
California
Posts: 239
I think I am going to get that Tekonsha that Melissa linked to because I got an idea when I saw it. I realized all I have to do is rig a 12v extension cord with alligator clips at one end and the socket at the other, stick them on the battery and hook up the controller to it... Then I can use the brakes properly with a dolly.
Yay!
__________________
John_M is offline   Reply With Quote
Old 05-01-2012, 04:07 PM   #14
Senior Member
 
Name: John
Trailer: gave up!!
California
Posts: 239
OH... I could maybe rig something to get the power and ground from the trailers cord too.... hmmmm....
__________________

__________________
John_M is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do I really need a brake controller? rleete Towing, Hitching, Axles and Running Gear 58 08-31-2012 12:31 PM
trailer brake controller steve dunham Problem Solving | Owners Helping Owners 17 01-16-2012 09:26 AM
Brake Controller Bill Reilly Problem Solving | Owners Helping Owners 6 03-13-2010 10:54 AM
Brake Controller Gary Seronik Towing, Hitching, Axles and Running Gear 10 05-06-2008 04:13 PM
Brake Controller Legacy Posts Modifications, Alterations and Updates 0 02-13-2003 05:20 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:17 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.