Dynamometer for powertrains (GMP)
Benches for electric, hybrid or combustion engines
The Emitech Group has a number of powertrain characterization (performance, vibration, etc.) and endurance test benches to develop or validate your thermal or electrified powertrain.
The expertise of our staff also enables us to handle any type of cycle or customer mission profile.
Example of our dynamic 'B9' dyno - 2 machines
This dynamic bench enables a large number of possible combinations to be tested without being encumbered by the vehicle's integral structure. Faced with the challenge of developing ever cleaner and more energy-efficient vehicles, the Powertrain bench can accommodate a range of powertrains: thermal engines, light hybrid (48V) or heavy hybrid (high voltage) or all-electric.
The versatility of our test bench means that we can respond quickly to the development and fine tuning (FTT) needs of vehicle manufacturers and equipment suppliers. Endurance or development tests carried out on this test bench validate the chosen architectures in terms of mechanical reliability, pollution and fuel consumption.
Dynamic bench performance
- 2 reversible machines with a total output of 400 Kw
- Independent speed control for each generator
- Operation in rpm, torque or vehicle, speed mode
- Fast monitoring (500Hz acquisition)
- Fluid conditioning (air, fuel, glycol, oil, etc.)
- PULSAR control and acquisition software specially designed for the powertrain simulation bench
- Complies with manufacturers' vibration level requirements
Options
- Gas analysis system: 5-gas analysis bay + EGR
- Particle analysis system: Pegasor
- Fumimeter - Opacimeter
- LMS or SONAR vibration measurement station
- Battery simulator (as required)
- Thermal shock with cold unit (fluids as required)
Dyno configuration for electric powertrain (eGMP only)
- Rated speed (rpm) : 1532
- NM : 2338
- A : 953
- kW : 359
- Hz : 500
- Constant Power Speed (rpm) : 2800
Machines / generators
- Maximum torque 2000 Nm from 0 to 1000 RPM for each machine
- Maximum speed of 3000 RPM
- Maximum power 200 Kw from 1000 RPM to 3000 RPM
- The direction of rotation is fully reversible, both manually and automatically
Fluid conditioning
- Fuel conditioner
- Air temperature and humidity
- Oil and water temperature and pressure control
- AVL fuel consumption scale
Measurement and control
- PULSAR control and acquisition
- Manual and automatic control of the test bench
- Fast 500hz acquisition
- Combustion analysis system: Osiris, Indicom
- ETAS equipment with engine control link, lambda meter
- Vibration measurement (optional)
Powertrain testing methodology
1 - Preparing the tests
- Integration of engines or vehicles on dedicated benches.
- Calibration of sensors and configuration of test cycles.
2 - Performing the tests
- Real-time acquisition of engine performance.
- Simulation of driving and operating conditions.
- Load, mechanical effort and fuel consumption tests.
3 - Analysis and validation of results
- Comparison with regulatory requirements.
- Detailed reports and recommendations for optimisation.
- Identification of possible causes of non-validation.
Talk to our experts in dynamic test benches for Powertrains
Integrating Powertrain testing into product development
- analysis of normative and regulatory requirements ** Implementation of tests with customised configurations ** Implementation of tests with customised configurations ** Analysis of normative and regulatory requirements ** Implementation of tests with customised configurations
- **Implementation of tests with customised configurations ** Interpretation of results to improve performance
- Interpretation of results to improve reliability and energy performance
Why choose the Emitech Group?
- 35 years' expertise in powertrain testing
- A dedicated project team (test engineers, automation specialists, metrologists)
- Fully mastered in-house control/supervision software
- Adaptation to your manufacturers' protocols or international standards
- Dynamic multi-configuration test benches tailored to your needs.
- Recognised expertise in powertrain development and validation.
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