Title:
METHOD FOR OPERATING ELECTRIC DRIVE SYSTEM HAVING MULTIPLE ENERGY STORAGE MEANS
Document Type and Number:
Japanese Patent JP2023168305
Kind Code:
A
Abstract:
To provide: a method for operating an electric motor or corresponding electric drive system securely and reliably in high load ranges; and the electric drive system.SOLUTION: An electric drive system (20) comprises: an electric machine (27) that comprises a first multiphase winding operatively coupled to a first inverter (25), and at least one second multiphase winding coupled to a second inverter (26); a first energy storage means (23) arranged upstream of the first inverter (25); and a second energy storage means (24) arranged upstream of the second inverter (26). The method includes: operating the electric machine (27) by providing a first power flow between the first energy storage means (23) and the first multiphase winding; and connecting the second inverter (26) so that a second power flow can be provided between the first energy storage means (24) and the second multiphase winding.SELECTED DRAWING: Figure 2
Inventors:
CHRISTIAN HOLLER
ROBERT NELLES
THOMAS HUBERT
ROBERT NELLES
THOMAS HUBERT
Application Number:
JP2023078833A
Publication Date:
November 24, 2023
Filing Date:
May 11, 2023
Export Citation:
Assignee:
PORSCHE AG
International Classes:
H02M7/493; B60L7/14; B60L9/18; B60L58/18
Attorney, Agent or Firm:
Patent Attorney Corporation Fields International Patent Office