| 摘要 |
The invention relates to a device for monitoring the pressure of pneumatic tyres on motor vehicles while driving, and consists in having combined a pressure sensor (4) mounted on the tyre, equipped with suitable means (7) for neutralizing the effects of centrifugal force, with a permanent magnet (5) designed to follow the movements of the sensor, so that while the wheel revolves, the magnet induces, at each revolution of the tyre, in a induction coil (10) located on a fixed part of the suspension, an impulse of which the time integral correlates directly to the pressure of the tyre, as a result of which, by processing the impulses received by the induction coil by means of a microprocessor device, it is possible to energize a signal in the driver's cab, should the pressure of the tyre stray outside a pre-determined range. <IMAGE>
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