| 摘要 |
<p>The angular velocity ( omega 1 - omega 4) each wheel (1-4) is detected and corresponding velocity signals are generated and processed in an electronic processing unit (EPU) programmed to calculate the difference between the sum of the velocity signals relating to two diagonally opposite wheels (1, 4) and the sum of the signals relating to the other two wheels (2, 3). The processing unit (EPU) generates an alarm signal when the value of this difference is greater than a reference value. The sign of this difference identifies the diagonal (1, 4; 2, 3) on which the at least partially deflated tyre is located. The processing unit (EPU) calculates a number of successive values of the radii of curvature (R) of the paths followed by the front axle (1, 2) and the rear axle (3, 4) of the vehicle (V) from a predetermined equation, and compares the radii (R) thus calculated for the front axle (1, 2) and the rear axle (3, 4) with respective predetermined reference values. The processing unit (EPU) counts the number of the radii of curvature (R) values relating to each axle (1, 2; 3, 4) which are less than the corresponding reference value and identifies that axle having the greater number of radii of curvature (R) values less than the corresponding reference value as the axle of the vehicle (V) having a partially deflated tyre. <IMAGE></p> |
