Siemens standardise tyre pressure monitoring

Siemens Automotive has developed a tyre pressure monitoring system (TPMS) universal for all standard Original Equipment Manufacturer (OEM) tyre makes and models. The system will make its market debut on a 2002 European vehicle.

By monitoring a tyre’s internal temperature, acceleration through rotation speed, as well as pressure, the Siemens Automotive TPMS solution is said to allow data specific to each tyre to be compared for inconsistencies within safety and operational parameters. It is also capable of automatically relocating individual wheel positions when tyres undergo routine maintenance, such as rotation or replacement.

According to a statement from Siemens, interval times between data updates can be automatically maximised for near-real time monitoring or minimised when the vehicle is parked to prolong battery and sensor life.

The Siemens stand-alone TPMS solution is said to utilise a pressure sensor with a transmitter mounted in the rim flange of each wheel. The sensor can be adapted to fit a standard OEM rim and allows all areas of the surface to be used in the tyre mounting process.

Behind the dashboard, a control unit integrated with a receiver and an internal or external antenna gathers and processes the transmitted pressure, temperature and acceleration information.

In an effort to combat vehicle cost and weight penalties usually associated with implementing new technologies, the tyre pressure monitoring system can be integrated with existing Siemens remote keyless entry technology.

Using the same pressure sensor as the stand-alone solution, this approach is said to eliminate the need to redesign existing technology or to install an additional receiver and electronic control unit.

‘The tyre pressure information can be displayed as a basic dashboard light alerting the driver to a developing situation,’ said Jean Christophe Deniau, Siemens Automotive Business Development Engineer. ‘Or it can be as detailed as an overhead console readout complete with tire diagnostic data and pinpoint location information.’