HSS-measurements, high-speed sensitivity measurements, HSS-measurements: a test procedure of tire cornering stiffness measurements at high speeds

Abstract

A new tire measurement procedure needs to be developed due to the optimization of the predictable recommendation of tire validity with regard to high-speed sensitivity (HSS). The high-speed sensitivity of tires describes the robustness, stability and controllability of a vehicle against disturbances at high speeds up to 200 kph. The high-speed sensitivity can be roughly estimated using the tire cornering stiffness. The definition of a new tire test procedure for cornering stiffness measurements at 200 kph aims to map a realistic driver profile [driver profile: average driving behavior of car drivers (no trained drivers).] and driving behavior as well as handling characteristics including a real test track without violating the tire validity limits (temperature, friction, etc.). Attention has to be paid to the short duration of the test procedure. A new tire test procedure is introduced which was developed for cornering stiffness measurements at high speeds up to 200 kph to better predict the high-speed behavior of tires on the test bench (here: external drum test bench).