AUMOVIO’s e-Motor Rotor Temperature Sensor (eRTS) has won the trade magazine Elektronik’s “Product of the Year” award in the category automotive. With this distinction, the magazine recognizes the eRTS as one of the three most exciting and outstanding innovations of the past year. The renowned media outlet for solutions and components in professional electronics has been awarding this title for more than 25 years.
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AUMOVIO eRTS sensor awarded “Product of the Year” by German trade magazine “Elektronik”
The award is a confirmation and an encouragement to continue on our strategic path to extend our product portfolio towards EVs within our product center e-Mobility Sensors (EMS). Electric vehicles are becoming increasingly important and with them, sensor solutions that contribute to safe, efficient, and economical driving. That is exactly where our innovations come in.
Christoph Busch, Head of the E-Mobility Sensors Product Center
Rotors in electric vehicle motors operate under extreme conditions: temperatures of up to 150 degrees Celsius can occur there. That is why monitoring temperature development is crucial. Current standard solutions do not measure temperature directly but calculate it based on algorithms, using information from the stator temperature sensor, phase current measurements, and environmental variables. However, the simulation has a tolerance range of up to 15 degrees Celsius. To protect the magnet from thermal demagnetization caused by critical temperatures, expensive rare earth elements are used in quantities that cover the entire tolerance range and ensure the magnet is heat-resistant.
The eRTS measures the temperature directly in the rotor of permanent magnet synchronous motors, providing a far more accurate alternative: Thanks to the direct temperature measurement, the tolerance range is reduced to just three degrees Celsius. This creates potential for greater efficiency, optimized costs, and a more sustainable design of electric drive systems.
The eRTS was developed in the E-Mobility Sensors (EMS) product center which has developed various innovations for both batteries and electric motors. These include further solutions that make thermal management systems more efficient and safer, detect battery impact, and provide real-time data from electric motors. More information about our portfolio can be found on our website.
More information about the eRTS can be found here.