Vehicle with Electrical Machine and Method for Operating the Same

摘要

A vehicle is provided with a multiphase electrical machine, a first onboard electrical sub-system having a first nominal DC voltage, and a second onboard electrical sub-system having a second nominal DC voltage. The electrical machine includes a rotor, a first stator system and a second stator system. The first onboard electrical sub-system includes a first inverter with a first link capacitor. The first stator system is associated with the first invertor. The second onboard electrical sub-system includes a second inverter with a second link capacitor. The second stator system is associated with the second inverter. The first stator system is configured in a star configuration. The second stator system is configured in a star configuration or in a delta configuration. A transfer circuit connects the star point of the first stator system to a higher potential of the second onboard electrical sub-system.

主权项

1. A vehicle, comprising:
a multi-phase electrical machine, the multi-phase electrical machine comprising a rotor, a first stator system and a second stator system; a first onboard electrical sub-system having a first nominal DC voltage; a second onboard electrical sub-system having a second nominal DC voltage; wherein the first onboard electrical sub-system comprises a first inverter with a first link capacitor, the first stator system being associated with the first inverter; wherein the second onboard electrical sub-system comprises a second inverter with a second link capacitor, the second stator system being associated with the second inverter; wherein the first stator system is in a star configuration and the second stator system is in a star or delta configuration; and a transfer circuit electrically coupling a star point of the first stator system in the star configuration to a higher potential of the second onboard electrical sub-system.