Commercially available

PRINCIPLE

A Tyre Pressure Monitoring System is an electronic system to monitor the air pressure inside a pneumatic tyre.

EXPLICATION

Direct TPMS delivers real time tyre pressure information.

The driver of the vehicle is informed either via a gauge or a simple low pressure warning light.

Direct TPMS employs physical pressure sensors inside each tyre together with some means of sending that information from inside the tyre to the vehicle instrument cluster.

Indirect TPMS measures the air pressure indirectly by monitoring individual wheel speeds and other signals available in the vehicle.

Tyre Pressure Monitoring improves vehicle safety, aids drivers in maintaining their vehicle tyres and hence can help reduce the amount of CO2 emissions released into the atmosphere.

The video proposed on the right side and produced by Johnson Controls illustrates a new EU legislation which comes into force in 2012 as part of accident reductions by monitoring tire pressure (TPMS) and the reduction of CO2 emissions. The link to this external site does not bind the European Commission.

Choose your car technology

• During ITS Lyon 2011, Hungary signed the eCall Memorandum of Understanding
• From April 7, 2011 eSafety is called iMobility
• See this video in a new window