Patent ID: 6192747
Filing Date: 2001-02-27
Classification: B60C

Abstract:
A system for monitoring the tire pressure in wheels mounted on an automotive vehicle by measuring, comparing and evaluating the rotating speeds of individual wheels, the system including wheel speed sensors and an electronic evaluating circuit,wherein the circuit is adapted to determine correction factors for the rotating speeds of the individual wheels representative of a deviation of the respective rotating speeds from a reference quantity, andis further adapted to store the reference quantity during a learning phase, and to determine and evaluate deviations of the correction factors from the reference quantity during an identification phase in consideration of a prevailing driving situation, andis further adapted to signal a loss of tire pressure as soon as the deviations exceed a predetermined amount;the improvement comprising:a wheel suspension with a signaling element, provided for each wheel, the element being adapted to send a signal to the circuit to automatically trigger a resetting of memories, which comprise data acquired and stored in the learning phase, and a re-start of the learning phase of the evaluating circuit upon rebound of the wheel to a predetermined extent.