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Prime Mover Magazine

Goodyear weighs in on pressure points

Global tyre manufacturer, Goodyear, offers a preventative measure to prolong the life of tyres and reduce downtime with its Tyre Pressure Monitoring System.

There are many well understood benefits of maintaining correct tyre pressure. Despite this it often can be difficult to achieve particularly for commercial vehicles. Checking pressures takes time and requires access to the vehicles that often don’t stay still for long.

Accessing the valve stems can have ergonomic challenges and in some cases can even create new leaks counteracting the benefit. To improve the way pressures are managed, Goodyear Dunlop Australia have begun trialing real-time Tyre Pressure Monitoring Systems (TPMS). The system uses battery powered sensors on each wheel transmitting pressure and temperature data every two minutes. A telematics box is mounted to the vehicle collecting the tyre information and transmitting it to a cloud server via mobile networks. To ensure maximum availability the device works with multiple mobile networks switching automatically based on signal strength. Algorithms are applied to the data collected to detect issues before they become problems.

If an issue is detected or limits are exceeded an automatic alert is sent to the fleet or service provider. The algorithm considers the varying tyre temperature and the effect it has on inflation pressure. A standard pressure check does not compensate for temperature making it difficult to detect small pressure changes, particularly when the tyres are being driven. By taking this into account small leaks can be detected and flagged for attention sooner. The advantage of rectifying a puncture before there is a large pressure loss can be significant. Early action can extend the life of the affected tyre and in dual applications it’s partner tyre also. Receiving an alert early can prevent the need for road side repairs as it often allows time to plan repairs in the fleet depot or tyre store. In the Australian trials multiple events have been detected and early intervention has been applied. This has avoided additional damage and is helping ensure the full value of the tyres can be realised. A common example is a small puncture that is difficult to detect visually. An additional application for the temperature data is to highlight mechanical issues such as dragging brakes or uneven axle loading.

Goodyear Dunlop Australia are planning to introduce this TPMS solution as a service in the second half of 2019. Along with other technologies this will be displayed at the upcoming Brisbane Truck Show.

Globally, Goodyear has already installed thousands of TPMS systems with strong growth forecast. Millions of data packets per month are being received, analysed and summarised into reports and alerts. To date less than 1 per cent of the tyres tested need urgent attention but the challenge is knowing exactly which tyres and where they are located. By using a real time TPMS system problem tyres can be identified and located in minutes. Compared to manual checks this can offer both efficiency and performance gains in tyre maintenance.

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