Test stands for the automotive industry - precise, efficient and flexible

test stands

Test stands

The more flexible, faster and more precise they are, the higher the competitive advantages that can be created: Test stands are an essential component of precise quality assurance procedures in the automotive industry. Research achievements must be rigorously checked and tested, and new functions meticulously verified to ensure that they are effective. And by the way, they must have outstanding efficiency when it comes to energy, time and costs – and safety for persons must be guaranteed in compliance with the applicable standard (according to C Standard EN 528). As complete supplier of electronic components and application-specific concepts we have the answer to all of these challenges. We are more than willing to help you implement your innovative concepts for test stands that are fit for the future.

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Function blocks

A test stand featuring Siemens technology has many advantages

Currently the most productive functions for optimization of your test bench
roller test stand

Roller test stand

Classic roller test stands generally have a design based on a two-mass oscillating system assembly – a some- what unfavorable concept. Using a SIMOTICS segment motor is an efficient way of improving the dynamic response of roller test stands. The direct drive technology allows the test stand design to be radically changed and innovated. 

  • Easier to handle
  • High availability: Continued operation even if individual stator segments fail
  • Rigid design of the mechanical components: Direct drive technology instead of a two-mass oscillating system
  • Better management of the control characteristics
  • More compact overall design
  • Space savings

Linear motor test stand

Test stands are becoming increasingly faster and more dynamic. Efficient drive technology is a fundamental precondition in order to achieve the high demands on test stands based on linear motion. Completely new possibilities are created by integrating a SIMOTICS 1FN3 linear motor directly into the mechanical system of the test stand.

  • High dynamic response
  • Low wear on the mechanical components
  • Simple mechanical design
  • Applications with constant forces without damaging the mechanical components
  • Replacement of hydraulic axes by electric drive technology
     

E-mobility test stand

The fast advance of electromobility and the development of new technologies means that the automotive industry has to embark on some significant capital investments. While classic internal combustion engines are essentially autonomous or externally driven, electric drive systems must be supplied with electric power – which requires new test stands. Efficiently providing the required DC power represents a considerable challenge when planning and designing test stands for electric vehicles.
  • Solution for battery simulation
  • Solution for battery test
  • All the components for the entire system from a single source
  • Energy exchange in the DC link, resulting in low line supply power rating, thus smaller dimensioning of the shop floor network
  • Retaining the 380 V - 480 V voltage level even for higher DC output voltages
     
Test stands for the automotive industry - precise, efficient and flexible

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Product selection

Components for the implementation of test stands

Interaction with the options of Totally Integrated Automation (TIA) and Integrated Drives Systems (IDS)

SINAMICS S120

  • High speed and torque precision
  • Active infeed unit for a constant DC link voltage
  • Control system with a high dynamic performance
  • Firmware extensions for applicationspecific functions

SINAMICS DCP

  • Bidirectional buck-boost converter in a single device
  • High switching frequency
  • Can be connected in parallel
  • Can be connected to an Active Line Module

SIMOTICS M main motors

  • High torque accuracy
  • High dynamic response
  • Safe encoder
  • High power density
  • Low noise emission

SIMOTICS direct motors

  • High dynamic response
  • High precision
  • Constant linear force
  • Wear-free force transmission
References

Test stands in practice

The Acoustic Center (Akustikzentrum) in Lenting, Germany has a highly modern, compact acoustic all-wheel roller test stand - in which precisely matched drives play a role:

Acoustic all-wheel roller test stand at Akustikzentrum GmbH / Lenting

Control of the rollers to the last millimeter, even at high speeds

Inter-compatibility of Siemens products

Low space requirements of the products

„We decided in favor of Siemens: because we had already had good experience with the company since we started and because it is also a selling point toward our customers that we have installed high-quality products for which spare parts will still be available if necessary in ten years.“   Michael Zehner, managing director of Akustikzentrum GmbH / Lenting

Contact

Direct contact to test stand specialist

Do you have any questions about our products and solutions?

Then feel free to contact us.

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