Battery Pack Heater Control for Parallel Temperature Uniformity

The patent divides the heating control into individual battery pack units, each with its own heater and temperature sensor. The control unit independently adjusts heating for each pack based on its specific temperature conditions, allowing differentiated control that accounts for position-based heat dissipation differences. This segmentation enables the system to maintain temperature uniformity across parallel-connected packs by treating each pack as a separate controllable entity rather than applying uniform heating to all packs simultaneously.

The patent combines multiple temperature sensors and heating control functions into a centralized control unit that manages all parallel-connected battery packs. This control unit receives temperature data from individual packs, processes the information collectively, and generates coordinated heating commands. By merging the control logic into a single intelligent unit rather than distributing complex control across multiple independent systems, the patent achieves individualized temperature management while minimizing overall system complexity.

The patent implements a feedback control mechanism where temperature sensors continuously monitor the temperature of each battery pack, and the control unit adjusts heater operation based on real-time temperature data. The system compares actual temperatures against target temperature ranges and dynamically modifies heating power to maintain optimal charging conditions. This feedback loop ensures that charging efficiency is maximized while preventing temperature-induced cell imbalance, as the system responds to temperature deviations by adjusting heating in real-time rather than operating heaters at fixed power levels.