Two five-phase induction motors used as an electronic differential

In hybrid and electric vehicles (HEV and EV), the electric motor is powered by power semiconductor systems. The most common is a voltage source inverter, hereinafter referred to as VSI, which converts direct current energy from traction batteries into alternating current energy, which supplies an asynchronous or synchronous motor. For HEV and EV the authors distinguish different concepts of motor connection. One of these concepts is the use of two electric motors that directly drive the individual wheels of the rear axle. By controlling these two engines, the authors can ensure the function of the differential. The problem is that the two motors must be controlled independently of each other. If the authors use three-phase electric motors, then the authors must supply each motor from its own VSI and thus achieve independent control of these two motors. However, a different situation occurs if the authors use two five-phase induction motors. In this case, it is possible to supply two motors from one VSI, while their independent control is possible. This paper presents the concept of an electronic differential, which consists of two five-phase induction motors, powered by one VSI and a mathematical block, which directly determines the speed of individual motors based on the steering wheel angle.


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01779615
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 24 2021 11:16AM