Trailer Stability Assist

1 07 2009

The purpose of the new Trailer Stability Assist (TSA) function is to dampen the oscillation tendencies that can arise when towing a trailer or caravan. In certain conditions, the rig runs the risk of swaying from side to side or “snaking” and it can be difficult for the driver to control this movement. TSA steps in and together with the further developed DSTC function helps stabilize the car and trailer by braking one or more wheels as necessary while at the same time reducing the engine’s torque. TSA operates on all road surfaces and is standard when purchasing a tow-bar. TSA is active at speeds above 30 mph.

Sometimes it can be very difficult to get out of a situation where a trailer has started wobbling, and in the worst case the trailer may even stray onto the wrong side of the road and roll over.

Unfortunately, it is not uncommon for this to lead to severe traffic accidents. These accidents usually occur during vacation periods when the roads are filled with towing caravans, trailers and boat trailers.

“It is not easy to single-handedly regain control over a trailer that has started wobbling. The basic rule is to always brake. With TSA, the wheels are braked individually, thus counteracting the trailer’s weaving tendencies. This is much more effective than the driver braking all the wheels at the same time. The other advantage of TSA is that it can activate much earlier to bring a situation under control, perhaps even before the driver notices what is about to happen,” concludes Per Ola Fuxin.