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Towards a fast-uptake of mEdium/Low-voltage eLectric power trains

Periodic Reporting for period 1 - TELL (Towards a fast-uptake of mEdium/Low-voltage eLectric power trains)

Reporting period: 2018-12-01 to 2020-05-31

The TELL project addresses the large-scale manufacturing of low and mid voltage high efficiency, compact and low-cost powertrain solutions targeting three major sectors:
• The full electrification of the small and lower-medium CAR segments which in Europe alone accounts for about 70% (8 millions/year) of the current total passenger cars sold ,
• Hybrid vehicles adopting a low voltage add-on electric propulsion,
• The lightweight urban mobility sector which on a global scale is exponentially growing.
The TELL project is focused to large scale manufacturing of power inverters and powertrains which will be demonstrated for two EV platforms: a 4WD operated at a nominal voltage of 100V by Si-based technology and a 2WD operated at a nominal voltage of 48V on GaN-based semiconductor technology.
The cooperation between 5 partners from three countries has been intense and very successful. In the course of the first period (M01-M18), TELL has completed the powertrain specifications and the reference vehicle for urban mobility has been developed. The low-cost electrical system based on 48 V machine has been designed and the performances have been calculated. The requirements of the Medium-Voltage powertrain made of NewGen MOSFET inverter and SynRMaPM machine have been defined.
A few minor deviation from the DoA has occurred, but this has no impact on the overall demonstration objectives of the project.
To sum up, all activities supporting the objectives of the project are progressing.
The TELL project focuses on the large scale manufacturing of power inverters and powertrains which will be demonstrated for two EV platforms: a 4WD operated at a nominal voltage of 100V by Si-based technology and a 2WD operated at a nominal voltage of 48V on GaN-based semiconductor technology. All the activities performed so far, as well as the minor deviations from the original plans of the technical annex have been aimed to maximise the impact of the project, i.e. to ensure a fast industrialisation of the results. All the developments made in the TELL project are fully integrated with the product development roadmaps within the enterprises of the consortium (GSME, IFAT, IFEVS, VEEM). All in all, the vehicles, the two powertrain systems and the Electrical and Electronic architecture, developed in the TELL first reporting period validate the specific impact to maximise the efficiency at low speed in urban driving cycles. Moreover, the developments in the first reporting period confirm the cost reduction in the production as well as the affordability and sustainability of manufacturing, as it has been shown by the activities jointly performed by IFAT and GSE and by IFAT and VEEM This will be further elaborated within the second reporting period in particular for what concerns the overall vehicle assembling, as already initiated and shown by IFEVS.