Browse Publications Technical Papers 845059
1984-01-01

Behavior and Road Handling of Tractor-Semi-Trailer Units: Improvement of Roll-Over Threshold 845059

The roll-over of the tractor-semi-trailer units is a spectacular road accident relatively specific to this type of vehicle, especially in obstacle avoidance maneuvers.
Different mathematical models were established to determine the transversal dynamics of the tractor-semi-trailer unit.
At the same time, dynamical tests on the road site permitted us to quantify the variables of interest, and to adapt the models.
We used these models to design modifications for the tractor and the semi-trailer in order to increase significantly the roll-over threshold.
One experimental tractor and one experimental semi-trailer with adjustable parts were built and tested on road site.
These experimental units are able to realise a transversal limit acceleration of 5 m/s2, this limit being 3.5m/s2 for the reference unit. On other criteria of road handling, the gain is sensible and very positively felt by drivers.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Bus Handling Analysis and Experimental Validation Using the Multibody System Technique

2001-01-3966

View Details

TECHNICAL PAPER

Multiple Steered Axles for Reducing the Rollover Risks of Heavy Articulated Trucks

881866

View Details

TECHNICAL PAPER

Truck Ride Improvement Using Analytical and Optimization Methods

770609

View Details

X