From 0-100km/h in 2.8 seconds, more than 95% efficiency within the entire car and preparation for any contingency in every detail, this describes the Audi FE07 that has been developed by Audi Sport, including its new Audi MGU05 motor-generator unit. The electric racing car in the new design will make its debut on the race track during the test in Valencia.
In the 2021 season, which starts in Chile in mid-January, Formula E will be held as an official FIA World Championship for the first time. For Audi, the commitment in the fully electric racing series is not just a sporting competition on the highest international level, but also perfectly supports the brand's transformation towards sustainable and digital premium mobility.
With an efficiency rating of 95%, the electric motor generator unit is three times more efficient than a regular internal combustion engine For Audi, the seventh season is also associated with another premiere. "The Audi FE07 has an all new electric powertrain that was developed in-house for the first time," says Stefan Aicher, Head of Development e-Drive at Audi Sport.
Work on the new MGU inverter unit for the coming world championship started from scratch. The result, named the Audi MGU05, is an electric one-speed drivetrain with an internal rotor concept, external magnets, a highly efficient cooling system and six electrical phases. The engineers managed to save weight by using lightweight materials and intelligent integration inside the vehicle.
The FE07 was given a refreshed livery design, with white, orange and green being the colours of choice for the Audi team for the 2021 season Efficiency is the key factor of success in Formula E. In numerous tough testing cycles, the entire powertrain was stressed to its limits in order to raise the entire high-voltage system to a maximum performance level.
The compact size combined with high performance is particularly impressive. "If you compare our MGU with an internal combustion engine delivering a comparable power output of 330bhp, our efficiency is not only twice as high, but our weight of less than 35kg is also much lighter," says Tristan Summerscale, Formula E Project Leader at Audi Sport.
Work on the new MGU inverter unit for the coming world championship started from scratch. The result, named the Audi MGU05, is an electric one-speed drivetrain with an internal rotor concept, external magnets, a highly efficient cooling system and six electrical phases. The engineers managed to save weight by using lightweight materials and intelligent integration inside the vehicle.
The compact size combined with high performance is particularly impressive. "If you compare our MGU with an internal combustion engine delivering a comparable power output of 330bhp, our efficiency is not only twice as high, but our weight of less than 35kg is also much lighter," says Tristan Summerscale, Formula E Project Leader at Audi Sport.
