Battery Pack Pulse Charging for Low-Temperature Fast Charging

The patent applies dynamics by continuously adjusting pulse parameters (amplitude, width, frequency) based on real-time battery temperature and state of charge measurements. The charging system transitions from static conventional charging to dynamic adaptive charging, where parameters are modified during the charging process to optimize both speed and battery health. This is achieved through a control unit that receives temperature sensors data and adjusts pulse characteristics accordingly.

The patent implements parameter changes by varying pulse amplitude, pulse width, and frequency based on battery temperature and charge state. Different parameter sets are applied at different charging stages and temperature conditions. For example, higher amplitude pulses may be used when battery temperature is within optimal range, while lower amplitude pulses are applied when temperature exceeds thresholds, thereby enabling faster charging without compromising battery lifespan.

The patent applies universality by designing the pulse generation circuit to serve multiple functions: it can deliver both heating pulses (to raise battery temperature) and charging pulses (to transfer energy to battery). The same hardware infrastructure generates different pulse patterns based on control signals, eliminating the need for separate heating and charging systems. This multi-functionality reduces overall system complexity while maintaining charging efficiency.

The patent implements periodic action through alternating sequences of heating pulses and charging pulses. The system applies heating pulses periodically to raise battery temperature to optimal levels, then switches to charging pulses for energy transfer. This periodic alternation is controlled based on temperature thresholds and charge state, enabling efficient temperature management without requiring continuous complex control mechanisms.