Development and validation

We are involved in the development and validation phases of vehicles and their components, particularly for your powertrains (architecture definition, sizing, specification, calibration, characterization and endurance, pollution, autonomy. .) as well as for their qualification.

Thermal (ICE-D/G, MHEV, e-fuels, H2, NH3), hybrid (HEV, PHEV) and electric (BEV, FCEV)

High-dynamic, dynamic or stationary benches

DYNAMICS BENCHES FOR THERMAL (ICE-D/G, MHEV, E-FUELS, H2, NH3),
HYBRID (HEV, PHEV) AND ELECTRIC (BEV, FCEV)

The Emitech Group has 3 powertrain benches for characterization campaigns (performance, vibration... ) or endurance campaigns 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 'B9' DYNAMIC BENCH - 2 MACHINES

Dyno configuration for electric powertrain (e powertrain only) :

100kW 600A /600V simulator and DC charging machines:

Rated speed	NM	A	kW	rpm	Hz	Const. Power Speed (rpm)
1532	2338	953	359	1532	500	2800

HIGH-DYNAMICS E-MOTOR BENCH

The EMITECH group has 3 high-dynamics characterization benches, including one dedicated to the EMC cage. These resources, developed and produced by the group's test bench BU, are used to characterize and validate electrical machines and/or their inverters over their entire operating range.

Note that these resources are also used to carry out R85 tests (power homologation) for which the Emitech group is NF EN ISO 17025 accredited at its Montigny le Bretonneux site.

Max speed: 20,000 rpm / Cmax: 500 Nm / Pmax: 250kW

CHARACTERISTICS OF THE E-MOTOR BENCH

Dynamic bench 1 machine

Total power : 270kW
Torque speed : 21krpm and 510Nm up to 6000rpm (Monte up to 21 000 tr)

Climate conditions

Ambient air : -45°C to +120°C
Water or oil : -30°C to +120°C, heat shock to chiller (fluids as required)

Acquisition

PULSAR (EMC) : Fast acquisition 5000hz, for bench control and supervision (10khz on specific values via power meter (WT3000E))
PULSAR VIBE (EMC) : Vibration acquisition, 50kHz on 8 channels for vibration supervision and LMS station for post-processing and characterization

Battery simulator 250kW / 1000V / 1000A
Precision torque measurement range 1000 Nm 22 000 rpm : HBM T12HP
VECTOR CAN card or ETAS equipment with motor control link (INCA)

HIGH-DYNAMICS COMPONENT BENCH (48V E-MACHINE)

This high-dynamics bench enables characterization of components such as the complete mapping of a starter-alternator (48V) from the actual torque achieved in order to recalibrate the mapping values.

Initially developed for the aeronautics sector, it is more specifically dedicated to high-speed 48V applications notably in the automotive sector.

Features of the high dynamic bench

Cell area 27 m2
Fisher driven electrospindle 100kW / 18000rpm / 79Nm
Fisher brake electrospindle 70kW / 24000rpm / 60Nm
2 x KEB 250kW drives
2 x MAYR ROBA-DS coupling
Pulsar Lite control software
PULSAR VIBE vibration supervision software
Air circulation system in the cell
Chilled water circuits for engine and accessory cooling
Oil circuit for specimen lubrication
2 central lubrication units for greasing the Electro-spindles

Couplemeter x2

Manufacturer - Model: HBM T40-100Nm
Precision: +/- 0.1%
Nominal Torque: 100 Nm

Features of the high-dynamic bench

Cell area 27 m2
Fisher driven electrospindle 100kW / 18000rpm / 79Nm
Fisher brake electrospindle 70kW / 24000rpm / 60Nm
2 x KEB 250kW drives
2 x MAYR ROBA-DS coupling
Pulsar Lite control software
PULSAR VIBE vibration supervision software
Air circulation system in the cell
Chilled water circuits for engine and accessory cooling
Oil circuit for specimen lubrication
2 central lubrication units for greasing the Electro-spindles

Couplemeter x2

Manufacturer - Model: HBM T40-100Nm
Precision: +/- 0.1%
Nominal Torque: 100 Nm

NEW FUEL AND E-FUEL BENCH

Our H2/NH3 high-dynamic engine dyno is an adaptation of our high-performance dyno designed to meet engine development requirements for various engine types: gasoline, diesel and natural gas (280 bar supply). It offers great versatility to address all engine development issues:

Measurement and calibration optimization work on stabilized points for performance, combustion, consumption, pollutant emissions, etc.
Automatic calibration
Automatic conduct of experimental designs and associated data analysis
Realization of standardized cycles under chassis dynamometer simulation conditions
Simulation of customer-representative high-dynamic driving cycles (RDE)
Accelerated engine maceration
ECU software bypass prototyping

Our bench offers the option of operating in liquid NH3 mode (PFI or DI injection up to 100 bar) or gaseous NH3 (with a nominal flow rate of 150kg/h), but also in mixed NH3 + H2 combustion and H2 alone (nominal flow rate 25kg/h and nominal pressure of 40 bar)

CLIMATIC CELLS WITH THEIR ROLLER BENCHES FOR VEHICLE TESTS

A climatic cell with its climatic roller bench enables to simulate and reproduce a vehicle's environment.

Rolling tests can be carried out in extreme temperature ranges (cold and high-temperature rolling) as well as cold and high-temperature start-up tests.

Tests can be implemented to meet our customers' needs in terms of validation and/or development of a product or function.

These test facilities can also be used to carry out tests on sub-assemblies in accordance with manufacturers' standards and specifications (e.g. CL08 tests to PSA standard B21 7130)

Test context typology in key words: Maceration, isospeed, characterization, performance, consumption, depollution, Cold start (explo, Tune-up), spark plug fouling, catalytic converter aging, FAP durability, clutch behaviour, cycle driving, driving with simulated road laws, putting into action, climatic validation...