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Oerlikon Graziano to showcase new multispeed EV transmission and innovative supercar transmissions at VDI Congress
18 June 2012
Oerlikon Graziano SpA will exhibit a family of electric and hybrid vehicle transmissions (earlier post), plus examples of its latest high-performance supercar transmissions, at the VDI Congress in Germany on 19 - 20 June. The electric transmissions displayed at VDI include four-speed seamless-shift transaxles using e-DCT technology, as well as single- and dual-speed transaxles, providing solutions for a wide range of electric vehicle applications.
|The two-speed electric vehicle transaxle. Click to enlarge.|
Supercar transmission displays include the dual clutch gearbox from the McLaren MP-12C and the ultra-fast shifting automated manual transmission (AMT) from the Lamborghini Aventador.
For high performance electric GT car applications, the company will exhibit a rear-drive transaxle assembly with twin 125kW electric motors. For hybrids and passenger or light commercial vehicles, a similar arrangement using twin 35kW or 25kW motors will be displayed. Both systems are four-speed types, providing seamless shifting between ratios without clutch or synchronizers.
Dual-speed seamless-shifting transaxles for a single electric motor, that are scalable from passenger car to light commercial vehicle applications, will also be exhibited, as will a single-ratio speed-reducing transaxle for electric passenger cars.
Efficiency is a core motivator in modern automotive design for both EVs and supercars. Packaging constraints are becoming tighter and so a greater emphasis is placed on increasing torque density. Our eDCT EV transmission is a direct result of the experience and expertise we have gained from years of supercar development. Weight and size are as critical for EVs as they are with supercars, and operational efficiency is crucial to increase performance while protecting operational range.—Claudio Torrelli, Oerlikon Graziano’s head of product development
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