In comprehensive batteries of tests, OEMs and their suppliers optimise wheels for high-volume production. These tests are described in detailed specifications and can be carried out by TÜV SÜD.
The supplier management services offered by TÜV SÜD take over routine activities, thus easing the workload of the design and development departments at OEMs. The bandwidth of services covers the entire process of project handling including documentation, from wheel design to SOPs. TÜV SÜD adopts the role of a service provider operating at the interface between OEMs, wheel manufacturers and system suppliers.
As an additional module TÜV SÜD also offers qualification of possible suppliers. Within the scope of this service, TÜV SÜD reviews and assesses the candidates’ quality and the design and development process. TÜV SÜD also supports successfully qualified “candidates” in familiarising themselves with the OEM’s processes, carries out final product tests and, where appropriate, recommends component approval.
TPMS – (tyre pressure monitoring system) designates systems used to monitor tyre pressure in order to prevent tyre damage and any accident risks resulting therefrom.
At present both active and passive systems are used for tyre monitoring. TÜV SÜD tests the function of the two systems according to Regulation ECE R64.
TÜV SÜD tests and certifies tyre inflator systems – tyre sealant and inflator packs – which comprise a sealant bottle and, optionally, an electric compressor, either in combination or as modular units. Product testing is based on a series of tests carried out both in the laboratory and on the road.
The following parameters are varied during testing:
• Environmental conditions (dry, wet or snow-covered road)
• Ambient conditions (e.g. temperatures)
Within the scope of the road test, a defined damage is inflicted on the tyre shoulder, tread or sidewall to assess the sealing performance of the sealant system. In the laboratory, the sealant is tested for its function at high and low temperatures and subjected to thermal shock testing.
The compressor which optionally forms part of the system is tested according to the EN 60335-1:02 standard “Household and similar electrical appliances – Safety”.