Elektrisches Fahrzeugsystem

Details

Veröffentlichungs-Nr.

EP3866295

Aktenzeichen

EP20157083

Anmeldetag

13. Februar 2020

Veröffentlichung

10. Juli 2024

Erteilung

10. Juli 2024

Rechtsraum

EP

IPC

H02J7/00B60L53/24H02J7/02B60L53/14B60L53/22

Abstract

A vehicle electrical system comprising an electrical storage system (6), a first multiphase electrical machine (5a) having a plurality of stator windings (8), and a first inverter (9a) connected to the electrical storage system (6) and to the first multiphase electrical machine (5a), wherein the first inverter (9a) has a plurality of switch legs (10, 11, 12) with switches (10a, 10b, 11a, 11b, 12a, 12b). The vehicle electrical system further comprises a second multiphase electrical machine (5b) having a plurality of stator windings (13), and a second inverter (9b) connected to the electrical storage system (6) and to the second multiphase electrical machine (5b), wherein the second inverter (9b) has a plurality of switch legs (14, 15, 16) with switches (14a, 14b). The vehicle electrical system additionally comprises a terminal (7) having a plurality of poles and configured for receiving single-phase AC or multi-phase AC or DC from a vehicle external charging source (17), a first conductive line (18) connecting a first pole of the terminal (7) with a first switch leg (10) of the first inverter (9a), a second conductive line (19) connecting a second pole of the terminal (7) with a first switch leg (14) of the second inverter (9b), and a first inductor (20) arranged in one of the first and second conductive lines (18, 19). Finally, the vehicle electrical system also comprises a control system (21) operatively coupled to the first and second inverters (9a, 9b) and configured for controlling operation of the switches of the first and second inverters (9a, 9b) for preventing charging current from passing through any of the stator windings (8, 13) of the first and second multiphase electrical machines (5a, 5b) during transfer of electrical charge from the vehicle external charging source (17) to the electrical storage system (6). The disclosure also relates to a corresponding method for charging an electrical storage system (6) of a vehicle electrical system.

Anmelder

Firmen

Ningbo Geely Automobile Research & Development Co. Ltd.
Zhejiang Geely Holding Group Co., Ltd.

Land

🇨🇳 China

Fachgebiete