X-Pressure™: the new generation tire
pressure monitoring systems
Tyre pressure monitoring systems provided by the car
manufacturers are of the indirect type. Usually linked to
the size of the tire: they do not evaluate directly, but
relative to a comparison with the other tires fitted to the
vehicle. With the result - improbable, but technically
possible - that if all four tires should be subjected to the
same anomaly at the same time, that fact would not be
diagnosed. The Pirelli systems work by surveying the tire
pressure directly & are divided into various systems. The
company puts its weight behind each one.
The important new development starts with a name already
known: X-Pressure™. But the substance is completely
new. This latest X-Pressure™ will be available soon
on the replacement market & is based on a system
constituted of a sensor fitted to the tire's valve. Inserted
into the valve cap, the mechanism can be used for both
conventional tires & the Run Flat, & measures the
eventual pressure anomalies in real time (different caps,
dependant on the reference value) & communicates it in
three different ways:
- AcousticBlue: signal via wireless link
to the mobile phone;
- Acoustic: signal via the onboard
electronic management system;
- Optic: optical signal on the valve cap
(white: OK – red alarm).
Apart from the optical signal emitted by
the first of the three systems, which immediately identifies
the tire that has the anomaly, all the other versions
provide acoustic & visual messages, which identify the
wheel fitted with the problem tire.
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