Chat with us, powered by LiveChat

Careers | Training | Resource!!!

arrow_back_ios

Main Menu

See All Products See All Knowledge See All Services & Support See All Solutions See All About See All Contact Us See All Demo See All Load cells title
arrow_back_ios

Main Menu

See All Acoustic End-of-Line Test Systems See All DAQ and instruments See All Electroacoustic application See All Software See All Transducers See All Vibration Testing Equipment See All Electroacousticsb - OLD unpublished See All Academy See All Resource Center See All Services See All Support See All Applications See All Industries See All Our Business
arrow_back_ios

Main Menu

See All Actuators See All Combustion Engines See All Durability See All eDrive See All Transmission Gearboxes See All Turbo Charger See All DAQ systems See All High precision and calibration systems See All Industrial electronics See All Power Analyser See All S&V Handheld devices See All S&V Signal conditioner See All Accessories for electroacoustic application See All DAQ See All Drivers API See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All Utility See All Vibration Control See All Acoustic See All Current / voltage See All Displacement See All Load cells See All Pressure See All Strain Gauges See All Torque See All Vibration See All Temperature See All LDS Shaker Systems See All Power Amplifiers See All Vibration Controllers See All Accessories for modal exciters See All Test Solutions See All Training Courses See All Primers and Handbooks See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Acoustics See All Asset & Process Monitoring See All Electric Power See All NVH See All OEM Custom Sensors See All Structural Integrity See All Vibration See All Automotive & Ground Transportation See All Business Ethics
arrow_back_ios

Main Menu

See All CANHEAD See All GenHS See All LAN-XI See All MGCplus See All Optical Interrogators See All QuantumX See All SomatXR See All Fusion-LN See All Accessories for industrial electronics See All Handheld Software See All Accessories for S&V handheld devices See All BK Connect / PULSE See All API See All Microphone sets See All Microphone Cartridges See All Acoustic calibrators See All Special microphones See All Microphone Pre-amplifiers See All Sound Sources See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Accessories for strain gauges See All Non-rotating (calibration) See All Rotating See All CCLD (IEPE) accelerometer See All Charge accelerometer See All Impulse hammers / impedance heads See All Cables See All Accessories See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All Resources See All Electroacoustics See All Environmental Noise See All Noise Source Identification See All Product Noise See All Sound Power and Sound Pressure See All Vehicle Pass-by Noise See All Production Testing and Quality Assurance See All Machine Analysis and Diagnostics See All Structural Health Monitoring See All High Voltage See All OEM Sensors for the Agriculture Industry See All OEM Sensors for Robotics and Torque Applications See All Structural Dynamics See All Material Properties Testing

Accurate Analysis of the Drive Using Raw Data

Many Components, One Measuring System

More Efficient Electric Motors Through Accurate Analysis of the Drive Using Raw Data

With growing awareness of the causes and impacts of climate change, vehicle emissions are under closer scrutiny. Both business and private vehicle owners are re-considering how vehicles are powered – and growing numbers regard electric drive vehicles as the best choice for their mobile future.

To continuously improve the efficiency of electric motors, Bertrandt Ingenieurbüro GmbH in Wolfsburg, Germany tests the drive components of electric vehicles for their customers. The Bertrandt Group offers services related to all aspects of the product development value-added chain for the automobile and aviation industry. Over 11,000 employees stand for future-proof solutions at 46 locations in Europe, China and the USA. This development service provider has been using the eDrive testing solution from HBM for tests on electrical components such as electrical machines and inverters since mid 2014.

The goal is to achieve the best setting for the motor. Important factors to consider include better efficiency, higher maximum power and optimized handling. Up until recently, Bertrandt has used a traditional power analyzer design for static operating points, to determine a characteristic efficiency diagram. However the disadvantage to that is is  it does not save  raw data nor the calculated values over an extended period of time. With the new measurement system from HBM, that's all history. Raw data is supplied synchronously and displayed quickly – and we can save it with automatic trigger control," says Max Bernholz, Team Leader of E-Drives Testing at Bertrandt.

The Importance of Raw Data

The integral measurement system from HBM combines three modules: 
  • torque transducer
  • data acquisition system with the real-time computing functions of a power analyzer
  • temperature satellite.
The eDrive testing solution shows all relevant data in high resolution during the test process; such as electrical currents, output levels, efficiency levels, torque and rotational speed. Bernholz says:
"This motor torque in particular is subject to high-frequency fluctuations, so the “live FFT” function of the device is very convenient for us. It's also useful for analyzing torque in a temporal relation to the phase currents."
The motors are all controlled by power electronics in which the power semiconductors form the rotary field from the direct current of the lithium-ion battery. "The high time resolution of the device is especially advantageous for analyzing the switching patterns of power semiconductors and seeing all the other relevant quantities on the screen in parallel," explains Bernholz. All recorded raw data can later be analyzed directly in the integral system. No other programs are needed, which saves time and keeps the error rate low."This solution is very flexible in terms of processing different measured quantities," notes Bernholz in conclusion. Continuous acquisition of raw data makes it possible to analyze the drive very accurately – clearing the way for even more efficient electric motors.
null

Related Pages

No more result to load

Modern Slavery Statement     Imprint    Cookie Policy    Privacy Policy    Sitemap    Ethical Business

 

© 2025 Hottinger Brüel & Kjær

 

 

close
nCode logo
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
ReliaSoft-Logo-webp
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
Prenscia HBM-Logo rgb
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
HBM-Logo blue rgb
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
logo of Brüel & Kjær (BKSV), experts of sound and vibration measurements from HBK
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.