Testing Expo 2022

The world’s largest trade fair for testing technology and services for complete vehicles and components:

Automotive Testing Expo Messe Stuttgart: 21, 22 and 23 June 2022.

We were in Hall 10 – Booth 1770:

3 test benches successfully in operation

In the laboratory for Vehicle drives at the Faculty of Mechanical Engineering at the Bundeswehr University, old engine test benches were to be replaced by modern test benches with 250 or 350 kW power and the ability to use alternative fuels (methanol, ethanol, hydrogen), including an integrated measurement and automation system for teaching and research.

For this modernisation, it was important to deliver, on the one hand, a complete system consisting of test stand and measurement and automation system with high-quality load drives and a measurement and automation system based on an open architecture and algorithms for measurement, automation and evaluation.

As DASYM, we succeeded in meeting these requirements, so that we received the order to realise the project at the end of 2020.

These were 3 engine test benches: two with 350 kW and one with 265 kW load machines, complete with automation, control, measurement and safety technology.

The load units were equipped with our proven standard EC ODyn modules, and the automation, control and measurement technology was designed together with our partner OPV.

These 3 test benches have now been successfully put into operation and meet all the requirements set by the Bundeswehr University.

The cooperation with Prof. Dr.-Ing. Trapp and his staff was and is very good, so that the project management was a pleasure.

Happy Birthday: 10 years DASYM!

On April 1, 2022 we celebrate

10 years DASYM!

We are committed and successful in the market for test bench solutions since 2012.

We started with energy tax consulting and asynchronous machine modules, mainly for engine test benches and transmission test benches.

Then the product range was expanded with measurement technology, as well as automation and control.

In the meantime, together with good partners, we can also supply complete, well-functioning test stands, which we have already proven several times.

We are also well positioned for the future and will continue successfully,

flexible, competent, uncomplicated, committed to our customers.

Test bench for electric motors

Test bench for electric motors Flyer Download

Testing technology for new challenges

20.000 rpm – the new high performance test benches for e-motors and e-shafts

Future electric vehicles will make use of high-speed electric motors in combination with an appropriate power electronics and a reduction gearbox.

Electric motor test benches play a decisive role in the development of these drive systems. Among many other tests completet on the test benches, are dynamic retraction tests and efficiency analyses as well as endurance tests performed.

The DASYM drive and load machines of the series ECODyn E are intended for test bench applications in the e-mobility sector. The max. speed is 20,000 rpm. Their high torques and low mass moments of inertia offer speed gradients of up to 26,000 rpm/s and thus very good dynamics for demanding simulations.

High dynamic drive technology
Compact, low-inertia load machines in asynchronous technology with highly accurate speed and torque measurement.
Different test bench setups
Tests for e-motors, e-shafts, back-to-back etc.
Environmental simulation and conditioning
Use of climatic chambers, cooling liquid conditioning, control of temperature, flow and pressure. Separate cooling circuits for the converter and the motor under test are possible.

Open Automation
Test runs and parameters can be freely programmed. The sequence control and test stand control represents the basis of the automation, which includes simulation as well as synchronous measured value acquisition and processing.

Customized mechanics
Our substructures with air suspension and test specimen mounting have a vibration-optimized design, which is especially necessary for high speeds.
Solutions for your successful application
On the electric motor test benches equipped from DASYM, new and further developments can be tested without restriction and thus support your continuous product improvement.

Your success is our challenge!

Test stand components and accessories

a) Coolcon coolant conditioning from FEV for engine outputs up to 300 kW
b) ServoCraft throttle actuator
c) MORPHEE automation system:

Automation software MORPHEE 2:
Can driver
XplayerMORPHEE
Component for FEV conStandard
Test item Step point cycl.
Automation HardwareAutomation Control CabinetD2T
Autom. MORPHEE PST Computer2*
Monitor 24 ”
Can Card
EtherCATKing
Master & Studio
Automation accessories
Watchdog accessories/O
Extension CPL
5 Panel
Cable set
for CPLNetwork switch Ethernet
Measuring technology
Measurement rack
Balance arm with joint
Temp Measuring Module T11
Pressure Measuring Module P03Accessories
Installation Measuring Bellows

If you are interested and have a requirement, we would be pleased to receive your enquiry and will send you a quotation immediately.

Asynchronous machine modules in stock

One module contains:
an asynchronous motor with attached HBM T40B torque flange and ROD 436 HTL speed sensor,
as well as the matching inverter system.

Module ECODyn 265M: 265 kW / 740 Nm / 9000 rpm

Characteristic curve of the ECODyn 265M module:

Used equipment

a) Asynchronous motor was used in motor test bench (year of construction 2007)

With the following data:

Nominal power: 420 kW
Nominal voltage: 400 V
Nominal current: 690 A
Nominal torque: 1540 Nm
Nominal speed: 2600 rpm
Max. Speed: 8500 rpm

Contains:

Basic motor Air-water heat exchanger
Torque measuring flange HBM T10FS
Blocking device
Support hole for vibration pick up
Cable glands
Pulse encoder ROD 436, with 1024 incrementals

b) Asynchronous motor was used in motor test bench (year of manufacture 2010)