Electric powered vehicles are very much in fashion, be this with a hybrid or pure electric powertrain. In Germany, some 8,522 new electric cars were registered in 2014, marking a substantial increase of almost 41 % compared with the previous year. Hybrid cars are even more popular. The number of new registrations in Germany in 2014 was 27,435 (26,348 previous year).* The reason for this is plain to see: hybrid cars are powered by electric and combustion engines and thus combine the advantages of both vehicle types – offering everything from reliability to energy efficiency through to reduced emissions.
The development in recent years has been astonishing and is progressing ever faster and further. Today electric vehicles are already efficient and reliable. A short overview is enough to highlight just how much innovative technology goes into each individual vehicle.
Did you already know that the Wieland Group supplies components for use in electromobility? This is because copper materials are ideally suited for this application on account of their outstanding electrical conductivity. With its product solutions, the Wieland Group is looking to forge ahead even further with the development of efficient and reliable powertrains.
The “permanent-magnet synchronous motor” (PMSM) is the standard in the industry. It can be easily integrated into the powertrain and uses copper switch rings to generate a magnetic field that interacts with permanent magnets, thereby generating torque. The PMSM is notable for its excellent and constant performance and is used in hybrid vehicles. Wieland works closely with the respective customers when developing customised solutions, from the prototype through to series production.
The asynchronous motor (ASM) could replace the PMSM in future years. It offers the advantage for example that it is possible to dispense with the use of rare earths. Since the ASM is designed with increasingly higher speeds, it is very important to use a stable material. Consequently, copper materials rather than aluminium will be used in many places in future. With a copper rotor, the ASM is capable of achieving maximum efficiency coupled with optimum material strength.
Electric powered vehicles are rapidly catching up in terms of reliability, performance and driving pleasure – a fact illustrated in impressive style by modern hybrid sports cars. They achieve top speeds of over 340 km/h. The heart of their motors is built with components from Wieland. In view of such success stories, it is clear: