The invention provides an equalization circuit and a control method and device thereof, control equipment and an automobile, the equalization circuit is arranged between two ends of a battery cell monomer of a vehicle battery pack, the equalization circuit comprises an equalization switch, the first end of the equalization switch is connected with the first end of the battery cell monomer, and the second end of the equalization switch is connected with the second end of the battery cell monomer; the first end of the equalization resistor is connected with the second end of the equalization switch; and the first end of the PTC is connected with the second end of the balancing resistor, and the second end of the PTC is connected with the second end of the battery cell monomer. According to the scheme, the BMS can be protected when the equalization circuit of the BMS is in thermal runaway, so that damage to the power battery pack and serious accidents such as vehicle fire or explosion are avoided.
本发明提供了一种均衡电路及其控制方法、装置、控制设备及汽车,所述均衡电路,设置于车辆电池包的电芯单体的两端之间,所述均衡电路包括:均衡开关,所述均衡开关的第一端与所述电芯单体的第一端连接;均衡电阻,所述均衡电阻的第一端与所述均衡开关的第二端连接;正温度系数电阻PTC,所述PTC的第一端与所述均衡电阻的第二端连接,所述PTC的第二端与所述电芯单体的第二端连接。上述方案,可以在BMS的均衡电路出现热失控时,对BMS提供保护,从而避免动力电池包的损坏,以及车辆起火或爆炸等严重事故的发生。
Equalization circuit, control method and device thereof, control equipment and automobile
一种均衡电路及其控制方法、装置、控制设备及汽车
2022-06-28
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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