Multi use of Coromal Excel van using Elecbrake

Jeff
I would wire each vehicle, battery to controller and then to the towbar plug because you have to have lights anyway. With a suitable solid mounted bracket able to transfer decell forces to the unit in each vehicle you can simply interchange the controller, ie, a Tekonsha, into which ever is used at the time.
That way you have the normal braking set for the van, unlikely to need much fine adjustment at each change over and each driver can also activate manually, the emergency override too. Most people give it a light application to check the van is functional at the beginning of each day.
Not sure how/if the Bluetooth is able to maintain a constant uninterrupted safe control and emergency application too and while control may be possible how do tap and control manual emergency braking actions
The wired connection is more desirable than phone which may go flat, develop a fault, the app freezes or drops out or under rough roads sees the G sensor in the phone begin to activate the brakes when you don't want it to happen.

While away in Queensland I fixed for a fellow vanner, a normal controller which was flappily mounted to a Ford dash and the non accurate transfer of G forces made the van braking almost non operational. He unfortunately discovered the
issue going down mountains and only the 4 disc brakes of the vehicle saved the whole rig. They were nearly fried, he and wife very frightened.

You could go for a portable electric brake controller. They are quiet often used by caravan hire places which saves the customer needing to have one permanently installed.

Another alternative is to install the HAYMAN REESE TRAILER BRAKE CONTROLLER ELECTRIC TEKONSHA PRODIGY P2 AUS VERSION in each vehicle.

Thank you all for your thoughts and opinions. My understanding is that once set and adjusted via the App the unit is set to work on this setting. This means in the event of loss of bluetooth connectivity, it still works from the brake signal light. It will just not be able to be used in a swaying caravan situation on its own.
Having never owned a caravan before I no idea how often this situation would happen, but have faith that if it has ADR certification, these situations would have been taken into account. Also the cars with luggage are appreciably heavier than the Coromal Excel so hopefully that will also assist.
Jeff

Is the device you speak of proportional? Trailer mount systems become illegal and needed to be able to be adjustable by the driver so they started mounting basically the same device in the cab.
Does this app just give you the ability to adjust a preset control from the cab and make it legal?

Preset controllers are very tricky to use and i think dangerous because people just select a very low setting and be done with it.

Most hire companies that used the drawbar mount controllers disconnected them because it cost too much in flat spotted tyres.

Spend the money and get a controller in each car. It just might be one of my loved ones in the car that is involved in an accident caused by your family saving a few dollars.

Elecbrake also have a small remote - I'd pay the extra and get that. It needs to be powered all the time from a USB charger but it connects to the trailer mounted unit and allows you to adjust/control it. It has an "override" button which will apply the trailer brakes manually. That way the driver doesn't need to have the phone app installed & running all the time.

As for applying the brakes to stop a trailer swaying - my guess is that most people who don't tow all the time (and probably many people who do tow all the time!) wouldn't apply the manual override if the trailer started swaying - they'd probably panic and just sit there hoping it would stop.

I've just installed an Elecbrake unit in our Tvan - it seems to work ok though at the moment it puts the trailer brakes on too heavily and I haven't had time to play with the settings to tone it down a bit. The remote needs to be powered all the time because its internal battery doesn't last very long.