Title:
MOTOR DRIVE SYSTEM OF ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/024712
Kind Code:
A1
Abstract:
A motor drive system (10) of an electric vehicle, used for driving an alternating current motor (90) and comprising: a first inverter power module (120) and a second inverter power module (120') disposed in a manner of parallel connection; a direct current input end of the first inverter power module (120) and a direct current input end of the second inverter power module (120') are both electrically connected to an output end of a power battery (30) of the electric vehicle; a first three-phase alternating current output end of the first inverter power module (120) outputs a first three-phase alternating current (U1, V1, W1) to a first three-phase winding (910) of the alternating current motor (90); and a second three-phase alternating current output end of the second inverter power module (120') outputs a second three-phase alternating current (U1', V1', W1') to a second three-phase winding (920) of the same alternating current motor (90). The motor drive system is low in cost, reliable and safe.
Inventors:
CHU XIAOWEI (CN)
WANG PENG (CN)
GONG XIAOFENG (CN)
WANG KAI (CN)
HONG WENCHENG (CN)
ZHUANG ZHAOHUI (CN)
XU LIWEN (CN)
WANG PENG (CN)
GONG XIAOFENG (CN)
WANG KAI (CN)
HONG WENCHENG (CN)
ZHUANG ZHAOHUI (CN)
XU LIWEN (CN)
Application Number:
PCT/CN2018/096806
Publication Date:
February 07, 2019
Filing Date:
July 24, 2018
Export Citation:
Assignee:
NIO CO LTD (CN)
International Classes:
H02P25/00; B60L15/00; H02P27/06
Domestic Patent References:
WO2018087892A1 | 2018-05-17 |
Foreign References:
CN207374164U | 2018-05-18 | |||
CN104767462A | 2015-07-08 | |||
CN106783362A | 2017-05-31 | |||
US20110156629A1 | 2011-06-30 | |||
CN103944318A | 2014-07-23 | |||
CN105449976A | 2016-03-30 | |||
CN106452218A | 2017-02-22 | |||
JP2006129668A | 2006-05-18 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (HK) LTD. (CN)
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