Michelin appointed Dynamon to run a controlled tyre trial with Logistik-Schmitt, part of Michelin’s Global Tyre Trials in European fleets. The work compared Michelin X Multi Energy with Michelin X Multi on heavy goods vehicles in Germany. Dynamon designed, monitored and analysed the trial in Precision Trial Analytics, so any difference in fuel use could be attributed to the tyres.
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Key outcomes
- 10 heavy goods vehicles in two matched groups of five, on Logistik-Schmitt’s operation in Germany in 2023.
- Eight months of the trial monitored and analysed, using eight months of historical Spedion telematics to design the groups.
- More than 400,000 km analysed. Operating behaviour stayed closely matched, and the trial measured a fuel saving for Michelin X Multi Energy.
The challenge
In live fleet work, fuel consumption moves with speed, acceleration, load and the hills a vehicle climbs. A change of tyre can be judged only when those factors are held comparable, and when the trial covers enough distance for the comparison to be trusted.
Michelin appointed Dynamon to run its Global Tyre Trials: controlled real-world trials in European fleets, measuring the fuel performance of Michelin X Multi Energy against Michelin X Multi. This trial was with Logistik-Schmitt in Germany in 2023. Historical telematics came from Spedion, the fleet’s telematics provider.
The fleet
Logistik-Schmitt is a third-generation family business, headquartered in Bietigheim, Germany. It provides transport and contract logistics, combining road haulage with warehousing.
Michelin, headquartered in Clermont-Ferrand, France, makes both tyres in the trial: Michelin X Multi Energy and Michelin X Multi are commercial vehicle tyres for heavy goods vehicles. This trial followed 10 heavy goods vehicles, split into two groups of five, comparing the two tyres.
The approach
Dynamon used eight months of historical Spedion telematics to design the groups, then monitored and analysed the trial for eight months.
Precision Trial Analytics follows four steps: predict the expected saving to set the trial size and duration; design matched test and control groups; monitor operating behaviour — speed, acceleration, hill climbing and load — throughout, so the groups stay comparable; and analyse fuel consumption, so any difference can be attributed to the tyres rather than to how the vehicles were driven.
What the trial showed
Throughout the eight months of the monitored trial, the vehicles covered more than 400,000 km. Over that distance the two groups’ operating behaviour was closely matched.
Because the groups stayed comparable, the difference in fuel consumption could be attributed to the tyres rather than to how the vehicles were driven. The trial measured a fuel saving in favour of Michelin X Multi Energy over Michelin X Multi in live operation.