Title:
CONTROL METHOD, APPARATUS, POWER SYSTEM AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/134640
Kind Code:
A1
Abstract:
A control method, an apparatus, a power system and an electric vehicle. Said method is applied to a motor controller in a power system, and the power system further comprises a power battery (10), a motor (30) and an inverter (20). Said method comprises: sending a first control signal to an inverter (20) when the temperature of a battery cell of a power battery (10) meets a preset heating condition of the power battery, wherein the first control signal is configured to control the inverter (20) to convert the electricity provided by the power battery (10) into an alternating current with a randomly changing frequency, the alternating current with a random change in frequency being used for supplying power to a motor (30).
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Inventors:
HUANG XIAOJIAN (CN)
DAN ZHIMIN (CN)
PAN XIANXI (CN)
ZUO XIYANG (CN)
DAN ZHIMIN (CN)
PAN XIANXI (CN)
ZUO XIYANG (CN)
Application Number:
PCT/CN2021/114980
Publication Date:
June 30, 2022
Filing Date:
August 27, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
B60L58/27; H01M10/60; H01M10/615; H02M7/00; H02P23/04; H02P27/06
Foreign References:
| CN111439132A | 2020-07-24 | |||
| CN102934355A | 2013-02-13 | |||
| CN110048192A | 2019-07-23 | |||
| CN112103595A | 2020-12-18 | |||
| CN110932585A | 2020-03-27 | |||
| JP2000184731A | 2000-06-30 | |||
| US20110074326A1 | 2011-03-31 |
Other References:
See also references of EP 4067161A4
Attorney, Agent or Firm:
BEIJING ZHICHEN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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