Process and circuit for monitoring tyre pressure.

Abstract

Abstract A process for monitoring tyre pressure by comparing and evaluating the rotation speeds of the individual vehicle wheels is based on the formation of speed correction factors (<u>K</u>(t,FS)). In a learning phase (Phase 1), the values of the individual correction factors, correlations between the correction factors for typical driving situations (FS) and tolerances depending on the actual driving situation (<u>G</u>1(t,FS)) are found for the correction factors. In a subsequent indentification phase the deviations (<u>G</u>2(t)) of the correction factors from the learnt values are established and assessed taking account of the tolerances depending on the actual driving situation (<u>G</u>1(t,FS)) and the progress of the learning process. Tyre pressure losses are signalled if the current speed correction factor (Kx(t,FS)) found during the identification phase (Phase 2), taking account of the current deviation (G2x(FS)), falls below the already learnt speed correction factor (KSp,x(FS)), taking account of the tolerance already found for the current driving situation (G1Sp,x(FS)).

Inventors

• 👤 Michael Latarnik
• 👤 Norbert Ehmer

Bibliographic Details