Performance of a Hybrid Powertrain Employing a Magnetic Power Split Device

Abstract

In this paper, performance of a magnetic power split device (MAGSPLIT) employed for hybrid powertrain is evaluated via measurements and presented for both component level (stand-alone device) and system level (MAGSPLIT-based hybrid powertrain). It is shown that a MAGSLPIT-based hybrid powertrain can provide similar functionalities as conventional mechanical power split hybrid powertrain but with a number of advantages including inherent torsional vibration attenuation, simplification of mechanical arrangement, and potentially improved efficiency through the elimination of some mechanical losses. It is demonstrated that for a MAGSPLIT-based hybrid powertrain, torque and speed of its internal combustion engine (ICE) can be independently controlled. This may lead to maximum ICE efficiency achievement by controlling ICE speed and torque following its maximum fuel efficiency line.