SWITCH CONTROL DEVICE AND METHOD, MOTOR CONTROLLER, AND BATTERY PACK HEATING CONTROL SYSTEM

The present disclosure relates to the field of battery power and provides a switch control device and method, a motor controller, and a battery pack heating control system. The switch control device includes: a processing module (P52) configured to select, when it is determined that a switch control cycle switches from a previous cycle to a current cycle, a target upper bridge arm switch module for the current cycle from upper bridge arm switch modules other than a target upper bridge arm switch module for the previous cycle in three-phase bridge arms and/or select a target lower bridge arm switch module for the current cycle from lower bridge arm switch modules other than a target lower bridge arm switch module for the previous cycle in the three-phase bridge arms; wherein the processing module (P52) is further configured to: during each switch control cycle, control the target upper bridge arm switch module and the target lower bridge arm switch module to be turned on and off. With the switch control device and method, the motor controller, and the battery pack heating control system according to the embodiments of the disclosure, the safety of the battery pack heating may be improved.