Product

AVL Dynamic Torque Transducer

Reliable and future-proof e-motor testing

Unlock the full potential of dynamic measurements. Precisely detect torque ripple and distinguish between rotational and translational vibrations – reliably and reproducibly.

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The electrification of mobility is accelerating the development of electric motors. Motors are becoming increasingly compact while the requirements for their performance continue to rise. In particular, rotational speeds are steadily increasing without compromising power output.

As motor speeds increase, identifying previously unknown technical phenomena becomes increasingly important. The AVL Dynamic Torque Transducer enables the measurement of highly dynamic behavior independent of rotational speed and provides a clear picture of the actual behavior of your e-motor.

Short development times for new electric motors are critical. Since time is limited, it is essential to avoid errors that would prolong the development phase. Our solution supports your development by enabling:

  • Differentiation between rotational and translational vibrations
  • Detection of structural weaknesses in the motor housing
  • Combining the advantages of conventional vibration and torque measurement
  • Continuous improvement of simulation results
  • Optimization of inverter control strategies
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Torque Ripple

Torque measurement provides an additional measurement variable for detecting lateral forces that cannot be measured using conventional techniques. This enables a more comprehensive understanding of the overall behavior of the electric motor.

Cogging Torque

Precise measurement of cogging torque in accordance with ISO 21782-3, without the need to remove or recalibrate the measurement equipment.

Simulation

Direct measurement of reaction forces and moments at the motor via the shaft connection ensures undistorted measurement results.

The measurement technology is based on the piezoelectric effect and offers several advantages, including maximum stiffness, high-bandwidth measurements, and a sensor configuration that covers the entire measurement range without recalibration.

The measurement chain consists of the Dynamic Torque Transducer, AVL X-ion™, and the AVL BEAT NVH Toolbox – this combination unlocks the full potential for your e-motor testing.

Operating principle Piezoelectric, charge output
Torque output Mz
Force output Fx, Fy
Dynamic torque range +/- 3,500 Nm
Sensitivity (nominal) 37 pC/Nm
Accuracy < 0.5 % FSO
Dynamic later force range +/- 18 kN
Operating temperature (non-condensing) -45°C to 150°C
Max. weight unit under test 100 kg
Stiffness 500,000 kNm/rad
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Plug & Play

Easy integration and fast commissioning on existing or new AVL e-motor testbeds.

Seamless Integration

Full integration into the AVL measurement environment and test automation.

 

Advanced Measurement Technology

Highly dynamic measurement technology enables reliable analysis of motor behavior – even at high rotational speeds.

Ease of Use

The AVL BEAT (NVH Toolbox) interface enables fast and intuitive interpretation of measurement results.

Differentiation Between Rotational and Translational Vibrations

Clear differentiation between these two phenomena increases efficiency during the development phase.

Reliable Measurement Results

Since the Dynamic Torque Transducer is always installed in the same position on the testbench, you can rely on the collected measurement data.

Measurement Results in Newton and Newton-Meter

Direct force and torque measurement enables easier and more accurate correlation with simulation models.

picture of mario propst

With the Dynamic Torque Transducer you can see all forces and moments of dynamic processes of an electric motor – for optimization, durability, and production assurance.”

– Mario Propst, Principal System Line Manager, AVL List GmbH

AVL E-Mobility Testing Solutions – Brochure

From battery to full vehicle, from products, to test systems to whole test facilites learn how we can support your testing needs.

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AVL Dynamic Torque Analysis – Solution Sheet

Future-proof and reliable e-motor testing.

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About AVL
With more than 12,200 employees, AVL is one of the world's leading mobility technology companies for development, simulation and testing in the automotive industry and in other sectors such as rail, shipping and energy. Based on extensive in-house research activities, AVL delivers concepts, technology solutions, methodologies and development tools for a greener, safer and better world of mobility and beyond.

AVL supports international partners and customers in sustainable and digital transformation. The focus here is on the areas of electrification, software, AI and automation. AVL also supports companies in energy-intensive sectors on their way to green and efficient energy generation and supply.

AVL's passion is innovation. Together with an international network of experts spanning 90 locations with more than 50 competence and development centers worldwide, AVL is driving the future of mobility. In 2024, the company generated a turnover of 2.03 billion euros, of which 11% was invested in R&D activities. 

For more information: www.avl.com