Lane Change Dynamics Versus Geometric Design of Truck and Full Trailer Combinations 785130
The lateral stability of vehicle combinations can be severely
reduced at high speed manoeuvres. It is desirable to avoid that
combinations with poor performance in this respect are used.
Regulations involving computer simulation control have been
proposed in Sweden. The method can be characterized as a computer
simulated double lane change test. The towing vehicle is guided
through the manoeuvre by means of an inverse steering procedure.
The safety criteria concern lateral deviations, side slip angle
maxima, overturning risk and the relation between risk factors of
truck and trailer.
The paper reports a study concerning truck and full trailer
combinations with geometric design parameters varied within the
limits set by length and axle load regulations in Sweden and GFR.
The results show that most of the combinations are acceptable.
However, two axle trailers with short platform and three axle
trailers with long bogie failed under certain conditions.
Staffan Nordmark, Olle Nordström
17th FISITA Congress (1978), Budapest, Hungary