The present disclosure provides a battery heating system and a control method thereof. The present disclosure relates to the field of battery power. The battery heating system includes a main positive switch (K1), a main negative switch (K2), an inverter (P2), a motor (P3), and a battery management unit. The inverter (P2) includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel. A motor controller (P20) in the inverter (P2) is configured to output a drive signal to a target upper-bridge-arm switch unit and a target lower-bridge-arm switch unit, so as to control a switch unit of an upper bridge arm of any one of three phase bridge arms and a switch unit of a lower bridge arm of at least one of the bridge arms except the bridge arm where the target upper-bridge-arm switch unit is located to be periodically turned on and off. The battery management unit (P4) is configured to collect state parameters of the battery pack (P1). When the state parameters of the battery pack (P1) meet preset heating conditions, a control signal is sent to the motor controller (P20) to control the motor controller (P20) to output the drive signal. [Fig. 1]
BATTERY HEATING SYSTEM AND CONTROL METHOD THEREOF
BATTERIEERWÄRMUNGSSYSTEM UND STEUERUNGSVERFAHREN DAFÜR
SYSTÈME DE CHAUFFAGE DE BATTERIE ET SON PROCÉDÉ DE COMMANDE
04.11.2020
Patent
Elektronische Ressource
Englisch
IPC: | 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 |