FSPT 2023 Day2 051

Improving car and gearbox efficiency through custom Datum torque sensors

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1. DSC7697

clientsThe Client

 UPC ecoRacing is a technological association formed mainly by students of the Universitat Politècnica de Catalunya (UPC – ESEIAAT) whose main objective is to design and manufacture single-seater racing cars to participate in Formula Student. UPC ecoRacing is the most awarded Spanish team, pushing the limits of electric and autonomous car racing.

eyeThe Challenge

  The team wanted to prove that the torque, speed and power output from the motor. From the findings here, they could measure the other side of the gearbox to calculate the overall gearbox efficiency. They can also see where the drops in efficiency are and then use these findings to design their new gearbox with the highest level of efficiency. 

This will be vital in improving the car performance but also because of the nature of the race series, one of the criteria that they are judged on is efficiency and sustainability and so the torque sensors provided help with their overall results as a team. 

2. 03 d agost (100 of 173)

 We have finished the 2022-2023 season, and we are very pleased with our performance. This year we have carried out the latest evolution of our concept of autonomous and electric vehicle, ecoRD 2023, optimizing and making our single-seater more reliable.

3. 04 d agost (97 of 165)
4. 05 d agost (65 of 114)

puzzleThe Solution

Datum provided a custom RS425 torque sensor which was designed for a high-speed motor with shaft balance for 20,000 RPM which could be monitored through the gearbox. In addition, we supplied a M425 torque transducer for the test rig for optimisation. The test rig has a high speed transducer measuring torque from the electric motor and a standard M425 torque sensor to measure the torque coming out of the gearbox.

bullseyeThe Impact

The results from this season have been the greatest in the history of the team, earning 21 trophies this season and being able to finish all the dynamic events on track. 

5. 07 d agost (92 of 192)

Who Was involved


Mark Jeffery

International Sales Executive

6. 12 d agost (223 of 438)

Custom M245

Rotary Torque Sensor

M425 torque sensor

M425 rotary torque sensor with keyway shafts offers high accuracy of 0.1% and torque measurement range from 0-10Nm up to 60,000Nm as standard. It’s an inline rotation torque transducer, widely used for motor, gearbox and pump torque testing.

Using a highly-accurate non-contact technique, the Datum M425 Rotary Torque Transducer and Torque Meter represent an ultimate torque sensor for anyone looking to measure torque, power, and speed with high accuracy and repeatability.

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