Title:
ELECTRIC MOTOR CONTROL METHOD AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/024918
Kind Code:
A1
Abstract:
Provided are an electric motor control method and an electric vehicle. The electric motor control method comprises: in the mode where an electric motor outputs a torque, a torque-current instruction calculation module converting a torque instruction value into a d-axis current instruction and a q-axis current instruction; in a battery heating mode, a heating instruction generation module generating at least one of a d-axis voltage heating instruction and a d-axis current heating instruction, wherein each of the d-axis voltage heating instruction and the d-axis current heating instruction comprises waveform instructions of amplitude and frequency changes; and an electric motor driving module driving, according to the d-axis current instruction and the q-axis current instruction, the electric motor to output a set torque, or driving, according to at least one of the d-axis voltage heating instruction and the d-axis current heating instruction, the electric motor to heat a power battery in the form of charging and discharging.
Inventors:
ZHAO HUICHAO (CN)
LI YAN (CN)
PAN ZHONGLIANG (CN)
DONG LIJIA (CN)
LIU YACHUAN (CN)
LI YAN (CN)
PAN ZHONGLIANG (CN)
DONG LIJIA (CN)
LIU YACHUAN (CN)
Application Number:
PCT/CN2022/111705
Publication Date:
March 02, 2023
Filing Date:
August 11, 2022
Export Citation:
Assignee:
CHINA FAW CO LTD (CN)
International Classes:
H02P21/22; B60L58/27; H02P21/30; H02P27/02; H02P27/04
Foreign References:
| CN112550062A | 2021-03-26 | |||
| CN112659977A | 2021-04-16 | |||
| CN112133987A | 2020-12-25 | |||
| CN110048192A | 2019-07-23 | |||
| JP2008068772A | 2008-03-27 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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