Sponsored by Unico.
With electrification taking maintain in any respect present automobile producers, upgrading present powertrain testing services is a excessive precedence. Whether or not it is changing conventional check benches with inside combustion engines to help e-powertrains or upgrading older battery lab cyclers to help increased voltages and powers, incorporating new check gear and supporting new vitality calls for, it is an enormous problem.
To realize the upgrades wanted to fulfill the testing necessities for as we speak’s and tomorrow’s e-powertrains, three issues should be thought-about:
- Obtainable energy
- Obtainable area
- Obtainable finances
That is most likely no shock to anybody confronted with this activity, however the conventional method to fixing this downside could not result in the very best answer. Because of this.
The standard method is to:
- Outline the necessity for a check cell improve (i.e. add a battery emulator to a check bench)
- Generate the gear specification (i.e. 1200VDC, 330kW, 600A)
- Generate a request for citation (request for citation)
- Ship the quote request to the highest 10-20 suppliers
- After a number of rounds of clarifications and negotiations, select the perfect one and proceed with the improve.
When that is then accomplished with the three limitations talked about above and with a myopic view of this one system, an answer could also be discovered, however it’s not optimized from a facility or laboratory perspective. All of those particular person programs added to the ability require flooring area and energy, that are fairly vital.
With advances in energy electronics with applied sciences similar to silicon carbide, gear vitality administration choices when combining AC and DC options into one system present options with a smaller footprint and decreased vitality necessities. SiC-based resonant converters constructed into battery cyclers can present true multi-channel battery testing with a single mains connection. Each advantages are additional enhanced when precise vitality wants are taken truthfully. Nevertheless, this requires a non-traditional method to the improve course of. Extra capabilities so as to add Battery Power Storage Methods (BESS) and renewable vitality technology to vitality administration check programs may even allow Web Zero operation.
Unico has the constructing blocks wanted for optimized laboratory options that may mix AC and DC purposes into separate programs that may recirculate vitality to scale back the load on the ability in addition to the variety of new, high-power runs that should be added. These programs even have a smaller footprint and decrease price, permitting a mix of IGBT and SiC applied sciences for use when crucial to scale back prices for purposes that don’t require the advantages of SiC energy modules. The identical programs will be multi-configurable, permitting the flexibleness to check a number of powertrain configurations with a single system, maximizing using bought energy. Commonplace and customised options with switching frequencies as much as 100 kHz, parallel and serial DC operation for multi-megawatt powers and voltages of 1500 VDC or extra.
Unico has the proper options for laboratory upgrades, together with:
- From ICE check bench to E-motor check bench
- ICE drivetrain to E drivetrain
- 400VDC battery cycle to 1200VDC+ battery cycle
- 1 channel battery cycle to 2, 4, 6 or 8 channel battery cycle
- EOL multi-channel inverter testing with a number of energetic hundreds in a single system