Driving Unit

Flywheel

Vertical Exciting UnitLateral Exciting UnitRail-Wheels

Test Car

Vehicle Fixing Unit

Self-Running Bed Driving Unit

Wheelbase Changing Unit

Truck Hunting Wavelength

Actual Compound Track IrregularitiesWith

a Yaw Damper

Without Yaw Dampers

Thr

esho

ld S

peed

/ km

h-1

Truck

Carbody