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Inverter Testing

Testing inverters with test benches from AUTFORCE

Testing inverters with test benches from AUTFORCE

Inverter – a device that plays an important role, especially in electromobility: The conversion of DC voltage into 3-phase AC voltage in order to control the speed and torque of electric motors.

We have developed test benches for a wide range of product phases in order to check the perfect functionality of precisely these power electronics components before further assembly. Our end-of-line (EOL) test benches cover high volumes with short cycle times, while our AMIT (Automated Modular Inverter Testing) was designed for small series and as a development test bench.

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End-of-line test benches for high quantities and short cycle times

Our EOL test benches for high volumes are characterized by their high throughput capacity, making them ideal for the requirements of serial production. Our test benches not only enable fast and precise delivery testing, but also help to optimize production processes and maintain quality standards.

Your benefits:

  • In-house development in the field of high-voltage contacting and DUT temperature control
Reference inverter EOL with transfer system
Automated Modular Inverter Testing Plant

AMIT – Automated Modular Inverter Testing for development and small series production

AMIT (Automated Modular Inverter Testing) is our inverter testing test bench solution specially designed for product development and small series production. Our test bench can be used as:

Development test bench
The perfect solution for long-term tests, stress tests and tests under environmental conditions. Furthermore, parameter tests can relieve the burden on the expensive and usually overbooked e-motor emulator test benches.

Relief test bench/backup
The AMIT serves as a reliable relief test bench and backup for automated EOL systems. In the event of bottlenecks or failures, the AMIT ensures a smooth testing process and helps to minimize production interruptions.

EOL test bench for pre-series & small series
Our AMIT can also be used as an efficient end-of-line test bench for pre-series and small series. It enables reliable delivery testing and helps to optimize quality control in series production.

Download overview of inverter test benches

How does the function test for an inverter work?

In order to be able to carry out function tests, the inverter is connected to a battery replica on the DC side and to the active or passive load on the AC side. During the function test, all built-in components of the produced inverter are tested for correct assembly and function. From passive discharge to calibration of the current sensors, test cases can be freely configured and parameterized using the autfactory test bench software. Thanks to our CUBES, a CE-compliant, safety-related enclosure without conventional protective fencing is guaranteed.

Over 20 years of experience

Shopfloor experts

  • Many years of experience in the mechanical and electrical construction of test equipment for winding goods and power electronics.
  • Full-service provider for industrial image processing, laser marking, insulation measurement and automated component handling with robots or transfer systems.

autfactory AMIT

Test bench control system

  • Experts in the field of complex test benches in the automotive sector.
  • Advanced know-how in the field of device communication as well as residual bus simulation via CAN, LIN or FlexRay.
  • Flexible test sequences and detailed test data acquisition.

Energy recovery via

Active-Load Emulator.

  • Emulation of the motor windings at highest level.
  • Energy recovery and rectification for the feed on the DC side – resulting in significantly lower operating costs of the test bench due to maximum energy efficiency.
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Operator at the packaging station of an inverter testing plant
Packing station of an inverter testing plant
Insulation test, function test and laser marking station of an inverter test system

Test inverters with our autfactory test bench software

In conjunction with our web-based autfactory test bench software, you also benefit from numerous advantages.

Central data recording and data tracking
Each measurement result is recorded in the database and can be easily accessed in the form of a report. The clear display of all test bench parameters also helps you to keep an eye on your production and development and to make future-oriented decisions.

Configure instead of program
The Sequencer provides you with a user-friendly solution that allows you to easily adapt your test sequences – without the need for complex programming.

Rapid data acquisition and AI-supported analysis
With autfactory, measured data is recorded quickly using external measurement technology that seamlessly integrates a wide range of manufacturer devices, such as Yokogawa. The software also enables comprehensive data analysis and the creation of meaningful reports.

If desired, an AI analysis can also be carried out to identify trends and correlations.

Advantages of automated inverter tests

Increase energy efficiency

Thanks to the sophisticated energy recovery system, the operating costs of the test bench (total cost of ownership) are optimized.

Reliable partner

Trust the experts. We can look back on 20 years of experience with complex assembly lines and test benches in the automotive sector.

Increase flexibility

Our test bench control system autfactory allows you to create your own test sequences without any programming knowledge.

Everything from one source

One contact for all your concerns. From the conception of the plant to complete acceptance.

Your benefit with AUTFORCE

AUTFORCE is characterized by in-depth market knowledge, which enables us to precisely select the necessary equipment and develop tailor-made solutions for our customers from an economic point of view. Our partnership goes beyond the provision of test benches.

Inverter Testing by AUTFORCE:

  • Flexibility – testing different products: Our test benches are characterized by their versatility and support inverters of different sizes and types, including 3-phase, 6-phase and multi-inverters.
  • Integration of third-party measuring devices: With in-depth expertise in interfaces, we offer smooth integration of a wide range of measuring devices.
  • Adaptation to your test requirements: What do you want to test with which measuring instruments? We adapt to your needs: Active or passive load, discharge curves, etc.
  • Standardized designs: Take advantage of the variety of our test stand solutions, which enable implementation with both conveyor belts and robots, and benefit from standardized designs for efficient and reliable test processes.

References

Do you also need a solution in the field of inverter testing?

At AUTFORCE, we specialize in testing systems & industrial software. specialized Get in touch with us. Together we will find the best solution for your project!

Rainer Jung
Inverter testing expert
+49 (160) 922 32 797
rainer.jung@autforce.com

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