发明名称 A method and apparatus for detecting the presence of an at least partially deflated tyre on a motor vehicle
摘要 The method comprises the steps of: detecting the angular velocity ( omega 1 - omega 4) of each wheel (1 to 4) and generating corresponding velocity signals or data, and processing the velocity signals or data in a processing unit (EPU) arranged for: calculating the value of a predetermined function (f, f') of the ratio or of the difference between the product of the angular velocities ( omega 1, omega 4) of two diagonally opposed wheels (1, 4) and the product of the angular velocities ( omega 2, omega 3) of the other two wheels (2, 3), and generating a warning signal when the difference between values of this function (f, f') and a first (static) reference value corresponding to a normal inflation condition of the tyres exceeds a predetermined value, or when the difference between the values of this function (f, f') and a second reference value determined upon each departure of the motor vehicle and corresponding to the actual inflation condition of the tyres upon departure of the motor vehicle (V) exceeds a predetermined value. <IMAGE>
申请公布号 EP0844112(A1) 申请公布日期 1998.05.27
申请号 EP19970119982 申请日期 1997.11.14
申请人 FIAT AUTO S.P.A. 发明人 RANDAZZO, CRISTINA;RE FIORENTIN, STEFANO;CASCIO, FULVIO
分类号 G01M17/007;B60C23/06 主分类号 G01M17/007
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