Heat sensors in rubber tracks; all track manufacturers are working on it. Because a track wears excessively when it’s get too hot. Manufacturers try to avoid this with heat sensors.
driver receives a message that the track is still good enough to renovate/rethread. The manu- facturer is still thinking of other possibilities of using this data. What’s also interesting is that Camso says that the sensor will be powered by the move- ment of the rubber tracks and the system will be integrated in an isobus-screen, and there- fore, the company is working together with another OEM.
Exterior of the track When we ask Soucy Track about their plans, the company reacts carefully. Also the Canadian manufacturer is working on a similar innova- tion but they are not sure yet how this should work: what is the right technology to measure heat? Soucy Track says that measuring the temperature inside the track is not necessarily the best solution. Because, what would be the right place or depth to place the sensors? The sensors cannot be placed too close to the steel cords within the rubber tracks. But as the tracks wear the depth of the cords change and the sensor depth also changes. And because a sensor or a lug will break down,
five sensors will need to be placed in one track. What would be the price of that, and will it last? That is why Soucy Track started studying something else. They started to check the
Sensors in tyres as well
Most manufacturers are working on sensors in tyres. Because a sensor in a tyre could cap- ture a lot of useful information: tyre pressure, temperature, slippage, stiffness, and of course how many kilogrammes of weight there are actually on the wheel. With all this data, it should be possible to make an auto- mated tyre pressure inflation system. And, in future, it will be possible for a braking system to anticipate how a tractor will react to a cer- tain braking action. But that is in the future. Closer to practice is Trelleborg. The tyre mak- er places two sensors on the inside the tyre. One is placed on the rim, the other on the rubber. They measure things like tempera- ture and pressure, but more information is possible. By measuring the distance between them, the tractor knows when slippage oc-
exterior of the tracks. That could be more relia- ble. Soucy Track plans to introduce a high speed-track (40 km/h) in 2020 with an optical detection – sensors inside, or outside the track.
These two sensors from Trelleborg measure slippage between rim and tyre.
curs between the rim and the tyre. And if you know that – in combination with tyre pres- sure and temperature – you have the indica- tors to predict when a tyre gets too warm or can roll off the rim. You can literally work to the limit of the tyre. Trelleborg is testing in Europe. The system will be for sale in 2019.
▶ FUTURE FARMING | 25 May 2018 41
PHOTO: BAS VAN HATTUM
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