Schaeffler boasted that its food the single-speed transmissions for the Audi e-tron all-electric SUV, which uses two electric motors (one for anniversary axle) for all-wheel drive.
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Schaeffler developed two versions:
Both transmissions accept a all-embracing accessory architectonics and are accessible for up to 400 Nm of ascribe torque. The rear coaxial assemblage weighs aloof 16 kg and has an chip parking lock for actual aerial loads.
Audi e-tron has arrangement achievement of:
Schaeffler started aggregate assembly of e-tron transmissions in August 2018 in Bühl and Herzogenaurach in Germany.
The aggregation expects that in the approaching it will be bearing 250,000 manual units per year. Because there are two units in anniversary e-tron, we accept that – if all will be purchased by Audi for the e-tron – up to 125,000 e-tron/e-tron Sportback annually is possible.
The alpha of aggregate assembly of Schaeffler’s manual for electric drives marks a anniversary for the E-Mobility business division. Developed and produced in plants in Herzogenaurach and Bühl, the artefact promises best active amusement while accouterment a aerial akin of abundance and optimum babble performance. The manual is accessible in both alongside arbor and coaxial versions and offers a aerial ascribe torque with low architectonics envelope requirements. Both variants are adapted in the new Audi e-tron. The coaxial alternative provides a adequate rear-wheel drive and alternative of the alongside arbor alternative on the advanced arbor enables all-wheel drive. The amount of the absolute arrangement is the all-embracing accessory set with a highly-integrated activation accessory cogwheel developed by Schaeffler.
Two axles for the absolute driveAll-electric active is accepting ground, but electric cartage will alone accretion boundless accepting if they action commensurable levels of active abundance and amusement as their counterparts with an centralized agitation engine. Today’s cartage accordingly abode astronomic requirements on their drive systems. The drive arrangement charge not alone ensure adequate active in an burghal environment, it charge additionally be able of switching to a antic active access with aerial acceleration. The alteration from accepted powertrains to amalgam or alike all-electric cartage accordingly requires a aerial akin of avant-garde backbone from both auto manufacturers and their suppliers. Schaeffler’s engineers begin absolutely the appropriate band-aid for the new Audi e-tron: Not aloof one of the axles is amenable for accouterment the drive for the absolute vehicle, the Audi e-tron can use the electric drive arrangement on anniversary axle. The drive arrangement on the advanced arbor is an electric arbor arrangement in alongside arbor design, while the rear arbor has the coaxial variant. In aggregate with the electric all-wheel drive, the two electric machines accommodate absorbing active achievement and active handling.
“The absolute aggregation is appreciative of this accession that we accept developed calm with Audi”, confirms Dr. Jochen Schröder, Head of the E-Mobility business analysis at Schaeffler. “The two transmissions for Audi accept been in aggregate assembly back August. For the future, we apprehend a assembly aggregate of up to 250,000 manual units per year. Acknowledgment to the modularity of our products, we can acclimate the manual for added applications.” Regardless of whether it is for all-electric cartage or the admixture of powertrains based on centralized agitation engines, Schaeffler’s modular arrangement is able for all requirements acknowledgment to the new E-mobility strategy.
Planetary accessory set as coreIn accession to the acoustic optimization, the belted architectonics envelope of the coaxial drive architectonics placed decidedly aerial requirements on the developers. The band-aid to this botheration is the awful chip stepped all-embracing accessory set accumulated with an avant-garde activation accessory cogwheel developed by Schaeffler. Despite the axial architectonics envelope claim of 150 millimeters, the manual abstraction adapted in the Audi e-tron enables an ascribe torque of 400 Nm with a weight of alone 16 kilograms. The all-embracing accessory architectonics abstraction was additionally activated to the alongside arbor drive alternative on the advanced axle. This access not alone bargain the development time and costs, it additionally optimized the affection of the product. Like the coaxial variant, this abstraction is additionally advised for an ascribe torque of 400 Nm and can be accumulated with an alternative parking lock. When the Audi e-tron is apprenticed in accustomed traffic, the drive is via the rear axle. If added ability is appropriate for accelerated acceleration, for example, the alongside arbor drive arrangement on the advanced arbor is selected.
The use of the manual in the electrically apprenticed Audi e-tron is addition important anniversary in the E-Mobility business analysis at Schaeffler. Two-speed transmissions accept been produced for the Asian bazaar back the alpha of the year. Assembly is currently agitated out in Germany, but the assembly band will be transferred to Asia at the end of the year to abide accurate to the abstraction of chump proximity. And the success adventure of the manual continues: The assembly of a manual for a acclaimed German agent architect will alpha in the additional division of 2019. Up to 40,000 manual units will be produced in the Herzogenaurach bulb anniversary year.
Source: Schaeffler via Green Car Congress
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