COOLING STRATEGY FOR BATTERY SYSTEMS

摘要

Embodiments describe a battery system that includes a first battery module coupled to a regenerative braking system and a control module that controls operation of the battery system by: determining a predicted driving pattern over a prediction horizon using a driving pattern recognition model based in part on a battery current and a previous driving pattern; determining a predicted battery resistance of the first battery module over the prediction horizon using a recursive battery model based in part on the predicted driving pattern, the battery current, a present bus voltage, and a previous bus voltage; determining a target trajectory of a battery temperature of the first battery module over a control horizon using an objective function; and controlling magnitude and duration of electrical power supplied from the regenerative such that a predicted trajectory of the battery temperature is guided toward the target trajectory of the battery temperature during the control horizon.

主权项

1. A battery system configured to be used in an automotive vehicle, wherein the battery system comprises:
a first battery module electrically coupled to a regenerative braking system; and a control module configured to control operation of the battery system by:
determining a predicted driving pattern of the automotive vehicle over a prediction horizon using a driving pattern recognition model based at least in part on a battery current and a previous driving pattern of the automotive vehicle;determining a predicted battery resistance of the first battery module over the prediction horizon using a recursive battery model based at least in part on the predicted driving pattern, the battery current, a present bus voltage, and a previous bus voltage;determining a target trajectory of a battery temperature of the first battery module over a control horizon using an objective function to balance effects of the battery temperature on aspects of the first battery module; andcontrolling magnitude and duration of electrical power supplied from the regenerative braking system to the first battery module such that a predicted trajectory of the battery temperature is guided toward the target trajectory of the battery temperature during the control horizon.