Testing of electric motors, inverters, and auxiliary electrical components
Hybrid drive testing
Simulation of battery systems
E-mobility is the future. The automotive industry is investing much in the development of alternative drivetrains. We support them in this endeavour. As an established partner in the testing of drivetrains of electric or hybrid vehicles, ATESTEO offers all relevant test benches and services in the field of e-mobility testing from one source.
For years, we have conducted tests of electric motors, inverters, additional electric components, and hybrid engines. Our test benches are so multifunctional that we are able to adapt the services of our range of tests to the parameters of electric and hybrid drivetrains at any time. Additionally, with virtual test benches, we create the possibility of testing complex hybrid engines during the early phases of production. Special test benches with battery simulators, e-motor test benches, hybrid powertrain test benches, and NVH test benches for hybrid drive systems and electric motors complement our drivetrain testing offering in the field of e-mobility testing.
Our competence for your e-mobility testing projects
Service life of the vehicle
Determine the service life of individual components of your transmission at the ATESTEO test bench!
In a short time, through purposely overstraining the components, we generate a picture of the damage that represents the service life of your vehicle in line with real driving conditions. We can conduct corresponding tests for hybrid applications on our test benches with just electric components or combustion engines.
Efficiency of the transmission
Check the optimisation of the degree of efficiency of your transmission at the ATESTEO test bench!
With torque sensors and torque flanges, ATESTEO offers reliable double telemetry systems in combination with electric power analysers to measure the degree of efficiency of transmissions for electric or hybrid vehicles. Even efficiency levels of more than 98% can be measured extremely precisely using this method.
Environmental simulation of the drivetrain
Identify interactions between your drivetrain and its environment at the ATESTEO test bench!
The performance and service life of your drivetrain is substantively influenced by its environment. Recognising environmental factors early and allowing insights to be incorporated into the optimisation of your components is the aim of environmental simulation at the ATESTEO test bench.
All further information on e-mobility testing at ATESTEO can also be found in our current performance brochure.
Electric and hybrid vehicles make high demands on the transmission. Besides energy and environmental efficiency, driving pleasure is a key focus for consumers. To accomplish all these things, the drivetrain requires a maximum degree of efficiency. Using precise measurements, we assist you to identify and increase the degree of efficiency.
So that all drivetrain components of an electric or hybrid vehicle may be developed in parallel, ATESTEO provides you prompt selective and realistic testing of your electric and mechanical drivetrain components. By doing so, we ensure that components work flawlessly before being assembled, and also provide you with the opportunity to optimise components during the development stage.
Current e-mobility testing test bench portfolio
To be able to support you effectively in the development of your drivetrains and prototypes, we permanently adapt our range of our e-mobility services at the test bench to the changing demands caused by rapid technical developments. Many well-known developers trust our competence in testing in the field of e-mobility. For many years, we have conducted tests related to the durability and efficiency of the drivetrain and its components on electric and hybrid vehicles at test benches.
High competence in e-mobility testing
Our electric motor test benches may be employed flexibly at installed engine power values between 320 kW and 2,700 kW for testing vehicle drive systems. For testing hybrid drives as well, ATESTEO offers state-of-the-art test benches that realistically simulate the operation of the powertrain. Following the same principle as the test benches for drivetrain models with electric and combustion engines, complex tests to analyse the properties of transmissions and hybrid systems are conducted.
Our range of services in e-mobility testing
To test electric motors and inverters, ATESTEO undertakes at the test bench all testing services with respect to mechanical, electric, and thermal properties of the drivetrain components. In addition, we provide services to collect technical data on component cooling and overload capability of the torque characteristic, as well as on sound emissions and axial-radial vibrations. To analyse the characteristics of the transmission and hybrid system, complex tests are carried out at the test benches.
E-mobility testing: endurance tests
Endurance testing of gears and bearings
High speed testing
Tests under torque
Tests under rotational speed
E-mobility testing: functional testing
Performance test ECE-R 85
Open-circuit voltage testing
E-mobility testing: efficiency testing
Drag torque testing
Oil level examinations
E-mobility testing: environmental simulation
High temperature testing
Thermal shock testing
Low temperature testing
Test equipment in e-mobility testing
ATESTEO offers you the full spectrum of services for your testing needs:
D/C Sources for EV/HEV
450 V; 150 kVA; 500 A
600 V; 540 kVA; 600 A
1000 V; 950 kVA; 1.200 A
Programmable as a battery simulator
D/C Sources for mild hybrids
Programmable as a battery simulator
Air: -40°C to +160°C
Gradient: 6 K/min
10 % to 98 % relative humidity
Fluid: -35 °C to +135 °C
≤ 25.000 rpm; ≤ 113 kW
≤ 18.000 rpm; ≤ 200 kW
≤ 10.000 rpm; ≥ 530 kW
≥ 5.000 Nm; ≥ 1.000 kW
Efficiency (power) measurement
High resolution electric efficiency analysers
ISO 17025:2005 (D-PL-19792-01-00, D-K-19792-01-00)
Would you like to learn more about our competencies and advantages in e-mobility testing at ATESTEO? Our experts are at your disposal.
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E-mobility testing on the drivetrain test bench
As a leading specialist in drivetrain testing, it is our goal to implement the testing of all types of transmissions. That is why our test stands are designed so flexibly that any test task can be carried out. Test single elements or your complete drive train without combustion engine on our electric motor test benches. ATESTEO also offers ultra-modern test benches for testing hybrid drives that show the application of the powertrain in real life.
Learn more about our e-mobility powertrain test benches for electric and hybrid drives.
To fulfil the need for lower carbon dioxide emissions and higher environmental friendliness of large commercial vehicles, new electric drive systems are being developed at this time. Testing the drivetrain on the test bench at an early point in time is essential in order to identify and eliminate possible defects as early as the development phase and in doing so, to optimise the quality and function of the components.
Validate e-axle development at an early point in time
For testing large e-axles of lorries, trucks, buses, coaches, and tractors, ATESTO offers drivetrain testing in its powerful e-mobility test bench for large commercial vehicles. The test bench, which is 100 square metres large and offers 1,000 kW of power, covers all needs for testing electric drives of large commercial vehicles and can be easily converted to take advantage of future fuel sources, such as hydrogen.
Drivetrain testing of…
Semitrailer trucks, articulated lorries
Towing vehicles, motor tractors
Fire fighting vehicles
Drivetrain testing for…
Testing powertrains at an early point in time
Identifying defects in components and processes
Increasing climate-friendliness, driving power, and comfort
Drivetrain Testing with…
All test bench services from endurance testing, functional tests, and efficiency testing to environmental simulation
Maximum technical know-how and high degree of application competence
The commercial vehicle test bench is fully compatible with the ATESTEO Testing Cockpit for remote access to your tests
Benefits of e-mobility testing on the ATESTEO commercial vehicle test bench:
Unique commercial vehicle test bench of this special performance class in Germany
Innovative test possibilities for electric drive units of trucks, lorries, buses, and motor tractors
Covering all test requirements of electric drive units of larger commercial vehicles
More than 15 years of experience with electric vehicle components
With torque sensors and high-torque adapter gear units developed in house
Application competence from thousands of testing projects
Easy conversion of the commercial vehicle test bench to new future drives (e.g. hydrogen)
Drivetrain testing of e-axles of large commercial vehicles
ATESTEO offers endurance testing, functional testing, efficiency testing, and environmental simulation on its commercial vehicle and heavy-duty vehicle test bench.
Endurance testing for large e-axles: Testing wear and durability of the components of the electric axle drives on the heavy-duty vehicle test bench.
Functional testing for large e-axles: Customised tests of all components and assemblies in electric axle drives with respect to performance.
Efficiency testing for large e-axles: Tests of the entire system and of individual components of the drivetrain (inverter, drive motor, transmission) for fuel-efficient drive systems.
Environmental simulation for large e-axles: Testing the behaviour of electric axle drives subjected to environmental influences such as warm and cold temperatures, extreme temperature fluctuations, and humidity (humidity simulation).
Commercial vehicle test bench for lorries, trucks, buses, and tractor units
Large test bench for large electric axles
100 m2 area – 1.000 kW power: The ATESTEO truck, lorry, and heavy-duty vehicle test bench is designed for the dimensions and requirements of large commercial vehicles.
Full e-mobility testing range of services on the test bench
Endurance testing, functional testing, efficiency testing, and environmental simulation.
Compatible with the ATESTEO Testing Cockpit
Remote access (and control) of your tests on the ATESTEO commercial vehicle test bench, independent of place and time with the ATESTEO Testing Cockpit.
Truck and lorry test bench for electric drivetrains of large commercial vehicles
Test the electric axles of a wide variety of commercial and heavy-duty vehicles: trucks, lorries, semitrailer trucks, articulated lorries, motor tractors, traction units, towing vehicles, tankers, excavators, truck cranes, fire fighting vehicles, equipment trucks, rescue vehicles, dump trucks, sweepers, tractors, buses, coaches.
Adapted to large e-axles: The dimensions of the test bench, which has a total area of 100 m², are designed for the dimensions of the test objects. Mechanics and electronics are adapted relative to their power and output to the large test specimens.
Test bench with powerful drive and symmetric design: The test bench features two strong electric drive machines with each 1,000 kW of power and their own adapter gear units with 25,000 Nm of torque. The large electro-axle is clamped between the metal struts and tested.
Technical data of the ATESTEO commercial vehicle test bench:
Electric drive motor (power unit)
Adaption drive (gear unit)
Power measurement electronics
(Adaption to your requirements regarding number of measuring channels and measuring frequency is possible.)
Torque: 25,000 Nm
Speed of rotation: 900 min−1
Test bench machines:
Power: 1.000 kW
Torque: 5.000 Nm
Speed of rotation: 4.000 min−1
Power: 1.000 kW
Amperage: 1.000 A
Voltage: 950 V