Influence of Dynamical Wheel Geometry on Vehicle Handling and Tyre Wear, Demonstrated on the Opel Corsa 845054
The modern chassis has to satisfy stringent requirements
relating to driving safety, driving comfort and vehicle
These requirements are substantially influenced by, among other
factors, the dynamic wheel geometry, i.e. the changes of the toe
and camber angle in respect to the static condition resuting from
the elasticities and kinematics of the axle. Therefore, extensive
measurements during the development phase of a chassis are
necessary for exact determination of the dynamic wheel geometry.
For this purpose Opel has developed a new opto-electronic measuring
system in cooperation with a German manufacturer of optical
equipment. This measuring system was also used in combination with
the Opel steering machine to investigate the dynamic steering
ratio, i.e. the actual steering ratio in driving operation.
Using the dynamic test results of the Opel Corsa as an example,
it is shown that the use of modern measuring equipment allows fast
and efficient chassis development steps in order to optimize the
vehicle handling and the tire wear.