M/457 - Tyre pressure gauges

This Technical report covers the technical description of the experimental work which has beeeen performed in order to elaborate methods of sampling of fertilizers and liming materials from static heaps.

This document covers reports on three experimental sampling studies which have been performed under mandate M/454 in order to check the accuracy of the developed sampling method for sampling of static heaps by comparing it to the sampling of the same fertilizer product in motion according to EN 1482-1 and to determine which sizes of static fertilizer heap, if any, can be sampled using existing sampling equipment.

This standard applies to the metrological tyre pressure gauges (TPG) which operate using pressure equipment (pre-setting devices used in fixed or mobile installations) to inflate the tyres of road using vehicles (cars, trucks) and which may be capable of interacting with tyre pressure management systems (TPMS) which monitor the pressure of the tyre of the vehicle, whereby the TPG may be steered by the TPMS. This standard defines requirements for the interoperability/compatibility of TPG with TPMS/vehicle, through standardised interfaces and data exchange formats allowing advanced information and management and control systems between TPG and TPMS. The architecture must be open and scalable to support from the simplest to the most complex applications. Furthermore, the architecture must consider all current relevant communication media and be adaptable for future communication media. This standard uses communication standard(s) which must allow the secure interfacing for data exchanges between the TPG and TPMS, including the avoidance of (radio) interference. (crosstalk i.e. TPG connecting to the wrong TPMS).

This European Standard applies to the tyre pressure gauges (TPG) which operate using pressure equipment (devices used in fixed or mobile installations) to inflate the tyres of road using vehicles (M1 and M2 categories) and which may be capable of interacting with vehicles equipped with tyre pressure monitoring systems (TPMS) whereby the TPG may be steered by the TPMS/vehicle.
To set the correct tyre inflation, this European Standard defines requirements and processes for the interoperability of TPG with TPMS/vehicle, through standardized interfaces and data exchange formats allowing advanced information, management and control systems between TPG and TPMS/vehicle. The architecture is open and scalable to support the different levels of interoperability (from full interoperability to fully manual).
This European Standard does not define communication protocols (works specifically made under M/453 European mandate).
This European Standard may be applied to all TPG categories referenced in the revision of EN 12645.
The driver/operator is considered as being responsible for the validation of the parameters and tyre pressure.
This European Standard will be applicable upon development of Infrastructure solution (V2I-I2V communication solutions).

EN 12645 defines metrological and technical requirements and tests of tyre pressure measuring instruments. Tyre pressure measuring instruments (often referred to as Tyre Pressure Gauges, [TPG]) are for the inspection of pressure and/or inspection of inflation/deflation of tyres of motor vehicles. It establishes in the context of motor vehicles tyres, the minimum characteristics of the chain of measurement of tyre pressure measuring instruments intended to inspect or adjust the pressure of tyres inflated by air or nitrogen. These devices, classified in different categories, are hereinafter referred to by generic term, “tyre pressure measuring instruments”. This chain of measurement consists of all the elements between the tyre valve and the display device (connector, hose, control device, measurement components, reservoir, preset device etc.). They indicate the pressure difference (pe) between the air or the nitrogen in the tyre and the atmosphere. The field of application established above can be extended to other applications where no specific standard exists. Because of the influence of tyre pressure on road safety and energy efficiency, periodical verification of tyre pressure measuring instruments is strongly recommended.

This European Standard defines metrological and technical requirements and tests of tyre pressure measuring instruments.
Tyre pressure measuring instruments (often referred to as Tyre Pressure Gauges, [TPG]) are for the inspection of pressure and/or inspection of inflation/deflation of tyres of motor vehicles.
It establishes in the context of motor vehicles tyres, the minimum characteristics of the chain of measurement of tyre pressure measuring instruments intended to increase, inspect or adjust the pressure of tyres inflated by air or nitrogen.
These devices, classified in different categories, are hereinafter referred to by generic term, "tyre pressure measuring instruments".
This chain of measurement consists of all the elements between the tyre valve and the display device (connector, hose, control device, measurement components, reservoir, preset device etc.).
They indicate the pressure difference (pe) between the air or the nitrogen in the tyre and the atmosphere.
The field of application established above can be extended to other applications where no specific standard exists.
Because of the influence of tyre pressure on road safety and energy efficiency, periodical reverification is strongly advised.