FUEL CELL ENERGY MANAGEMENT CONTROL METHOD AND SYSTEM

WIPO Patent Application WO/2022/041411

A1

Disclosed is a fuel cell energy management control method, comprising: acquiring the power battery temperature T; if T is less than or equal to a first temperature threshold T1, or T is greater than or equal to a fourth temperature threshold T4, controlling a power battery to not permit continuous charging, and controlling a fuel cell to not start; if T2≥T＞T1, controlling the power battery to permit low-power continuous charging, and controlling the fuel cell power P to be less than or equal to a first power threshold P1, and the power battery SOC＜SOC2; if T4 is greater than T is greater than or equal to a third temperature threshold T3, controlling the power battery to permit low-power continuous charging, and controlling the fuel cell power P to be less than or equal to a second power threshold P2, and the SOC is less than a third SOC threshold SOC3; if T3＞T＞T2, then controlling the charging power of the power battery according to an SOC range, and controlling P4≥P≥P3. The power battery is prevented from maintaining continuous high-power charging at a high SOC and at high and low temperatures, thus ensuring that the power battery has a good usage life and is safe.

YAN GUOGANG (CN)
LI CHUN (CN)
QIU YUANHONG (CN)
XIONG JINFENG (CN)
XUE KAIZHE (CN)
ZHANG JIANLI (CN)
FANG LANLAN (CN)
ZHU HENG (CN)

PCT/CN2020/121177

March 03, 2022

October 15, 2020

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HIGER BUS CO LTD (CN)

B60L58/40

KR102113270B1	2020-06-02
JP2001095110A	2001-04-06
CN107264324A	2017-10-20
CN108988427A	2018-12-11
US20200127310A1	2020-04-23

SUZHOU CREATOR PATENT AND TRADEMARK AGENCY LTD. (CN)

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