In the Department of Vehicle Technology (Fachgebiet Fahrzeugtechnik=FZD, Director: Prof. Dr. Ing. B. Breuer) at Darmstadt Technical College, the possibilities of improving braking reliability and the travelling stability during motor cycle braking, particularly under the difficult conditions of the dynamics of travelling through curves were and are being studied theoretically and in the course of practical experiments. Particular attention has been paid to the link between different riders' riding skill and the quality of braking in curves with different brake systems; the quality of a braking procedure while riding in a curve is not just described by features typical for braking, such as, for example, the deceleration achieved, but, in particular, by criteria of riding stability, such as the increase in steering unsteadiness, and the reliable adherence to the given driving line, e.g. the deviation from course. There proved to be a link between the rider's experience and the deceleration achieved in a curve, but by no means with respect to the lateral dynamic stability features (increase in steering unsteadiness, braking steering moment); here, at least in the test situation recorded, the lead in objective active safety is compensated or in individual cases overcompensated by increased subjective willingness to take a risk. Building up on the results obtained, a concept proposal was prepared for a linear, transverse and vertical dynamically regulated, load-controlled combination brake, also containing measures against the particular problems specific to single track vehicles, the off-track fluctuations critical for riding stability and the braking steering moment. The requisite sensory mechanism was designed and its suitability for use in practice was demonstrated in an experiment on the dynamics of vehicle movement. In subsequent experiments, the braking system defined as being suitable for curves, including the improved braking power regulation is to be constructed so that the gain in braking reliability and driving stability can be examined in practice.
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