Dynamometric test bench aimed at developing and validating traction systems for electric vehicles.
It is made up of an electric induction machine that acts as the load to which the machine being tested is coupled. It includes a bi-directional DC source to supply the inverters. It is completed with instrumentation equipment for reading and capturing test data.
Location
Description
The test bench has the following characteristics:
- Loading machine (maximum values)
- Power: 157 kW
- Torque: 487 Nm
- Speed: 8,000 rpm
- Bi-directional DC power source
- Power: 280 kW
- DC current: 560 A
- Voltage: 250 – 700 VDC
- Torque / speed transducer
- Torque: 500 Nm
- Speed: 20,000 rpm
- Current transducers
- Nominal RMS and DC current: 400 A
- Peak current: 566 A
- Precision: 0.0044 %
- Cooling system
- Ethylene glycol / water solution
- Temperature range: -30 °C – 90 °C
- Heating power: 3.5 kW
- Cooling power (room temperature 20 °C): 1.6 kW
- Flow rate: 10 l/min
- Power analyser
- Input channels: 4 + motor option
- Precision: 0.02%
- Bandwidth: 0.1 Hz – 1 MHz
- Data acquisition system
- Number of input channels: 30
- Acquisition time: 10 ms
- Thermocouples: R, S, B, K, E, J, T, L, U, N, W
- 3-wire RTD. Pt100, JPt100, Ni100 SAMA, Ni100 DIN, Ni120, Pt50, Cu10, Cu10 L&N, Cu10 WEED, Cu10 BAILEY, J263B
- Typical tests:
- Tests for verifying nominal characteristics and overload
- Phase to phase voltage
- Phase current
- Temperature
- Electrical and mechanical power
- Power factor and efficiency testing
- Simulation of driving cycles based on Dynacar®
Aimed at:
Companies that develop or want to develop traction system assemblies or components for electric vehicles:
- Electric motors
- Inverters
- Electronic control units related to traction systems
