ESC with hydraulic trailer brakes

Submitted: Wednesday, Aug 31, 2016 at 18:02
ThreadID: 133350 Views:2250 Replies:3 FollowUps:6
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Does anyone know if any electronic stability control system is available for trailers with electric over hydraulic brakes? I have been on the net all day and keep drawing a blank.
Keith
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Reply By: Kazza055 - Wednesday, Aug 31, 2016 at 18:20

Wednesday, Aug 31, 2016 at 18:20
My understanding is that the ESC works by applying either the left or right van brakes and I can't see how you could split the operation of the hydraulic brake system.
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Follow Up By: Member - Witi Repartee - Wednesday, Aug 31, 2016 at 19:35

Wednesday, Aug 31, 2016 at 19:35
My understanding is the ALKO Esc system applies both sides of the caravan brakes simultaneously and should be disconnected if off road or doing a bit of rock and rolling...the Dexter Dsc system applies one side or the other of the caravans brakes and senses when off road so it doesn't need to be disconnected. (I've just ordered our new Lotus and specified the Dsc)
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Reply By: Jarse - Wednesday, Aug 31, 2016 at 20:14

Wednesday, Aug 31, 2016 at 20:14
I have AlKo IQ-7 hydraulic disk brakes on my camper. The AlKo ESC is not compatible with it.
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Reply By: Nomadic Navara - Wednesday, Aug 31, 2016 at 23:23

Wednesday, Aug 31, 2016 at 23:23
You can only get mechanical (cable brakes) or electric.
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Follow Up By: Jarse - Thursday, Sep 01, 2016 at 06:02

Thursday, Sep 01, 2016 at 06:02
Al-Ko IQ-7 is electric air over hydraulic discs. I have these in my AOR.
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Follow Up By: Nomadic Navara - Thursday, Sep 01, 2016 at 07:35

Thursday, Sep 01, 2016 at 07:35
Does that system work on the hydraulic over-ride brakes? Does your system work via the electrical or the hydraulic part of the circuit?
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Follow Up By: Jarse - Thursday, Sep 01, 2016 at 15:34

Thursday, Sep 01, 2016 at 15:34
Hi Peter,
The IQ-7 uses a conventional controller (such as a P3). From there, there's a braking unit about the size of a footy in the front boot of the camper. It has an air compressor and storage tank built in.
The air circuit is controlled by the brake controller, and is used to boost a single hydraulic circuit to the discs.

It works incredibly well in my camper. It also has a built-in breakaway system. If you pull the Anderson Plug (where it gets its power), the system applies appropriate breakaway braking. No breakaway battery needed :)

I *think* the reason the ESC is not suitable is because it can apply braking to either side (drums) in a sway situation. The IQ-7 is on a single hydraulic circuit, so not suitable 'yet'.....
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Follow Up By: Nomadic Navara - Thursday, Sep 01, 2016 at 17:29

Thursday, Sep 01, 2016 at 17:29
So correct me if I am wrong. Your hydraulic brake unit has its ESC built in. You don't know of any ESC that you can use on existing brakes (which I believe is what the OP requires.)
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Follow Up By: Jarse - Thursday, Sep 01, 2016 at 19:21

Thursday, Sep 01, 2016 at 19:21
No Peter, it doesn't have ESC built in. It does have a built-in breakaway system.

I spoke to Al-Ko a few weeks ago, and they told me their ESC is not suitable for the IQ-7. I think that's because it has the one hydraulic circuit for both sides. whereas electric drums can be separated and braked individually if needed by the ESC.
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