Testing of Electric Motors in the Automotive Sector
Cross-system software for process monitoring of engine production and development
Once parameterise - use in all systems. Compare the results of all the CARMEN engine test benches.
Test procedures
System specific and standardised test procedures in test modules

Recording the motor characteristics from idle to stalled and vice versa.
- Evaluation of the linearity and the violation of given limit curves/scatter bands
- Determination of a regression line or an idealised course by calculating a polynomial.

Freely defined test over time.
Supporting points can be defined where a certain torque is reached within a specified time and is applied for a certain time.

Checking the gear backlash by a defined load in both directions of rotation and determining the angle of twist above the torque.

Check the thermoswitch in the test sample by blocking the test sample to determine amount of time after which the thermoswitch trips at maximum current.

Static measurement of gear inhibition by recording the angle over time, under varying load.

Checking of the Hall sensors in the test object under defined load and with analysis of the Hall pulses over the angle of rotation of the rotor.

Measurement of the DUT characteristics at the starting torque under a defined load.

The ripple is filtered out of the test sample stream and displayed.
The analysis of the waveform gives information about the quality of the test sample.
The ripple current is used by the manufacturers to determine the speed.

Checking of the self-locking with short-circuited test specimen after a defined advance run with load in both directions of rotation.

The test object voltage is increased under a defined load and determines at which voltage value, a rotational movement of the test object starts.

Recording and evaluating the speed fluctuations over a defined angle of rotation under a defined load.
A powerful, database-supported software system offers you a variety of test procedures, analysis tools and functions for parameter and data management. These enable you as a product developer to recognise weaknesses in the UUT and to assign measurement data and test parameters to different UUT types.
In addition to the standardised test procedure for the classic motor characteristic curve, which represents the current and speed curve from no load (torque control = zero) to blocking of the test object above the torque, a large number of other test procedures are available. All of which conform to the specifications of the automotive industry.
In principle, all raw data of the measurement are recorded and stored for each test. This enables the calculation of results with changed evaluation parameters without having to repeat the test on the machine. In addition, the measurement data can be loaded on any PC and analysed again - a global networking of the engine test benches is thus given.
In order to further expand the functionality of CARMEN, you can program your own individual test algorithms. Test parameters or quality features that are determined during product development (in the development test bench) are used later in the endurance test or in the end-of-line test.
We are your partner
From validation of development samples and prototypes, to reliability and endurance testing, as well as end-of-line testing, we manage all processes with just one software system.
Common database and software tools
- common software system for all GÖPEL electronic engine testers
- traceability of results across systems
- system-wide application of test parameters and evaluation parameters such as limit curves etc.
Read here why a comprehensive test platform is worthwhile!
Download white paper on the CARMEN test platform.