How the three stage brake stabilisation works
The system precisely adapts its control strategy to the specific application. The driver has three progressive function modes available for this purpose:
At a glance
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Protection against jackknifing
Targeted braking pulses on the trailer stabilise the entire vehicle combination and can prevent uncontrolled jackknifing.
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Flexible function settings
Customised use in day to day fleet operations thanks to the Automatic Control, Pedal Control and Manual Control modes.
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Convenient control
Intuitive activation and adjustment directly via the instrument panel and brake pedal instead of imprecise lever based solutions.
Stability in many driving situations: The electronic MAN Trailer Stability Brake
Negotiating downhill gradients on slippery surfaces or wet roads with a heavy trailer or semitrailer is one of the most demanding tasks in day to day transport operations. If the towing vehicle decelerates in such situations, the pushing trailer can destabilise the vehicle combination. The electronic trailer stability brake reliably stabilises the vehicle combination.
Using intelligent software logic, the system precisely controls the trailer brake pressures to stabilise the vehicle combination at the critical moment. This can help maintain driving stability even under demanding conditions, whether on winding downhill stretches in long haul transport, on snow covered country roads or when manoeuvring on unpaved forest tracks.
In addition to enhancing safety, the system helps you optimise the cost effectiveness of your fleet. Controlled integration of the trailer into the braking process reduces uneven wear and protects the vehicle combination from damage caused by uncontrolled swerving. In addition, the automated control system complies with current European approval regulations, ensuring safe and legally compliant use in international transport.
Automatic Control
This mode operates proactively in the background. It detects potentially dangerous situations such as jackknifing and helps prevent them by controlling the trailer brake pressure. The vehicle combination is stabilised before the Electronic Stability Program (ESP) needs to intervene, ideal for winding roads, snow or downhill terrain.
Pedal Control
Acts reactively when the regular service brake is applied on downhill gradients. The system ensures that the trailer or semitrailer is electronically controlled to decelerate slightly more than the towing vehicle. This effectively prevents heavy loads from pushing against the towing vehicle on tight bends.
Manual Control
The Manual Control mode is specially designed for demanding situations. When stationary, the trailer can be braked separately to ensure safe coupling or manoeuvring in confined spaces. When driving slowly, up to approx. 30 km/h, the driver can briefly apply the trailer brake using a button to manually stabilise the vehicle combination in particularly challenging situations, such as steep bends on forest roads. Telescopic trailers can also be conveniently extended or retracted using the manual MAN Trailer Stability Control, MAN Manual Control.
Application specific benefits
The electronic Trailer Stability Brake offers tailored benefits for different transport segments:
- Safety in long-haul transport:
Smooth and controlled driving dynamics on motorways with changing road conditions. - Reliability in the heavy duty segment:
Comprehensive control and stable vehicle handling when transporting timber or operating 60 tonne combinations in mountainous terrain. - Precision on construction sites:
Increased operational safety when manoeuvring and controlling moving off on loose surfaces.
Safer driving in Tyrol on steep, loose surfaces
Martin Lener (Managing Director of Lener Hackgut GmbH) and his drivers are impressed by the MAN Trailer Stability Brake.
Available for the following truck models:
Frequently asked questions
The system controls the trailer brake pressures via the towing vehicle’s standardised trailer brake connection interface. For specific technical queries about your fleet, please contact your MAN partner.
Yes. As the conventional manual trailer brake cannot be approved for use in the EU, MAN has adapted this important stabilisation function to comply with current legislation by introducing an electronic version. Thanks to intelligent automation, the system is fully ECE compliant and offers maximum benefits while maintaining a high level of operational safety.