Systems and methods for determining battery system power capability

摘要

System and methods for determining battery system power capability in a vehicle are presented. Peak power capability estimation systems and methods disclosed herein may compensate regressed parameters in a battery system circuit model for an effect of current magnitude. Utilizing the disclosed methods for accurately estimating peak power capability of a battery system may provide for, among other things, improved battery system performance modeling and/or improved battery system control and management decisions.

主权项

1. A method of determining a peak power capability of a battery system comprising:
identifying a peak current of the battery system; determining a regressed ohmic resistance in a battery system model used to model the battery system; scaling the regressed ohmic resistance to calculate a compensated ohmic resistance of the battery system model based on the peak current; determining a peak power capability of the battery system based on the compensated ohmic resistance and the battery system model; and implementing a control action in a vehicle associated with the battery system based on the determined peak power capability.