Saturday, Jan 23, 2016 at 16:41
Pop it's all good.
The P3 ( and the Towpro in inertia mode) use inertial deceleration to determine how quickly the tow vehicle is braking. That is when it applies brakes the faster the braking, the more brakes.
The different setting levels and the sensitivity setting allow the P3 to apply more or less braking to the trailer FOR A GIVEN amout of braking. In other words for a given amount of deceleration ( braking), you may want the trailer to apply more or less braking to assist in stopping depending on the trailer brakes, the weight of the trailer etc. Too much and the trailer will pull up the tow vehicle, too little and it isn't helping stop enough. This is usually set up once for every vehicle, or when things change.
This is fantastic for normal on road braking and really is "set and forget". However this doesn't work very
well on steep, slippery dirt tracks like in the high country. There isn't enough inertia to make the whole system work
well and even on steep tracks often the trailer brakes are not applied.
The old redarc controllers worked very differently, their setting determines how much braking the trailer does, regardless of the amount of deceleration. Ie if you set it to 9, it will brake hard if you slam the brakes on or gently come to a stop. This is really bad for normal towing on road, BUT it is great for off road. If you are on a steep downhill slope you can set the brakes on the camper to help even at slow speeds.
As a result the Towpro supports both modes at the push of a switch. Hence my interest.
The reason for the question is that on the surface it appears that Redarc's Onroad inertia mode isn't as efficient as the P# design. That's what I want to determine.
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