Title:
VEHICLE ELECTRICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/160022
Kind Code:
A1
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). It also relates to a corresponding method for charging an electrical storage system (6) of a vehicle electrical system.
Inventors:
HAGHBIN SAEID (SE)
Application Number:
PCT/CN2021/075305
Publication Date:
August 19, 2021
Filing Date:
February 04, 2021
Export Citation:
Assignee:
NINGBO GEELY AUTOMOBILE RES & DEVELOPMENT CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
International Classes:
H02P5/74; H02J7/00; H02P27/06
Foreign References:
| CN106031016A | 2016-10-12 | |||
| US20090096394A1 | 2009-04-16 | |||
| US20020070557A1 | 2002-06-13 | |||
| CN103434415A | 2013-12-11 | |||
| US20080094013A1 | 2008-04-24 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
Download PDF: