Active Roll Control of a Semi-Trailer

Paper #:
  • 933045

Published:
  • 1993-11-01
Citation:
Dunwoody, A. and Froese, S., "Active Roll Control of a Semi-Trailer," SAE Technical Paper 933045, 1993, https://doi.org/10.4271/933045.
Pages:
8
Abstract:
A serious safety problem with tractor/semi-trailer combinations is roll-over. The roll-over threshold of a combination could be increased by using active roll control to roll a trailer into a corner. The key components of such a system are a tiltable fifth-wheel coupling, actuators to apply a moment to the trailer axles, a source of hydraulic power, sensors and a controller. This active roll control system is entirely self-contained within the trailer, so is effective when the trailer is pulled by any tractor or used with a convertor within a train. An active roll control equipped trailer behaves exactly like the same trailer with a conventional suspension except for a reduction in the effective height of the center of gravity of the trailer. Increases in roll-over threshold of 20% to 30% are typical over a wide range of trailer weights and CG heights.
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Standard
1996-12-01