Bay Systems Limited: Proof of Concept of a wireless sensor to measure Tyre Cavity Temperatures

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Bay Systems Limited are developing a proof of concept of a wireless Tyre CavityTemperature sensor which can be easily fitted, is small enough to fit inside the tyre and robustenough to work whilst the tyre rotates. Accurate internal temperature measurements willimprove tyre design accuracy since direct measurements within the tyre cavity will not bereliant on modelling assumptions.The proof of concept requires the design of sensor and electronics, packaging andmeasurement approaches to enable reliable operation in the very constrained space availablebetween tyre and rim. These sensors need to be compact, wireless and able to withstand thelarge forces and unavoidable rough handling as tyres are fitted, removed and driven in testconditions.Creating this sensor is important to tyre and vehicle manufacturers who need to understandthe complex tyre material behaviours in real world conditions. This requires accuratemeasurements of physical tyre parameters such as temperature inside the tyre as it rotatesunder realistic conditions, whether in the lab or on the road. A robust, reusable sensor that iseasy to use will enable this internal measurement to be cost effectively included in the tyredevelopment regime. Improving the design of vehicle tyres can make a critical contribution toimproving vehicle ride quality, durability, energy consumption, noise and particulate matteremissions.