Battery Temperature Rise Rate Estimation Under Pulsed Heating

The patent applies preliminary action by establishing equivalent circuit models and heat generation models before actual pulsed heating operations. The model parameters are identified and calibrated in advance using experimental data, enabling accurate prediction of temperature rise rate before the battery is subjected to pulsed heating in low temperature environments.

The patent introduces an intermediary approach by using equivalent circuit models as a mediator between the pulsed heating input and temperature rise output. The model acts as an intermediary system that translates electrical parameters into thermal predictions, allowing indirect measurement and control of temperature rise rate without direct temperature sensing during pulsed heating.

The patent replaces direct thermal measurement (mechanical/physical sensing) with an electrical-based equivalent circuit model. Instead of using temperature sensors to directly measure temperature rise during pulsed heating, the system uses electrical parameter measurements and model calculations to substitute for direct thermal detection, thereby maintaining heating efficiency while simplifying measurement.

The patent creates a virtual copy of the battery's thermal behavior through equivalent circuit modeling. The model replicates the battery's electrical and thermal characteristics, allowing the temperature rise rate to be estimated from the model copy rather than measuring the actual physical battery directly, thus reducing measurement difficulty while maintaining accuracy.