Systems and methods for battery system temperature estimation
AssigneeGM Global Technology Operations LLC
InventorsMichael Wahlstrom, Ciro A. Spigno, Jr., David R. Clark
Life of this patent
Estimating the term…
Abstract
System and methods for estimating a temperature of a battery are presented. In some embodiments, a method of estimating a temperature of a battery system may utilize measured battery system temperature data and measured ambient temperature data. Based on the measured temperature data, an average estimated temperature of the battery system may be determined using, at least in part, an extended Kalman filter and an energy balance process model associated with the battery system.
Claims20
A method of estimating a temperature of a battery system, the method comprising:
- receiving battery system temperature measurement data from one or more first temperature sensors associated with the battery system;
- receiving ambient temperature measurement data associated with an ambient temperature proximate to the battery system from one or more second sensors associated with the battery system;
- and
- determining an average estimated temperature of the battery system using, at least in part, an extended Kalman filter based on the battery system temperature measurement data, the ambient temperature measurement data, an energy balance process model associated with the battery system, and a temperature parameter.
A system comprising:
- a battery system;
- one or more first temperature sensors configured to measure temperature data associated with the battery system;
- one or more second temperature sensors configured to measure ambient temperature data associated with an ambient temperature proximate to the battery system;
- one or more current sensors configured to measure current data associated with the battery system;
- battery control electronics communicatively coupled to the one or more first temperature sensors, the one or more second temperature sensors, and the one or more current sensors, the battery control electronics being configured to:
- receive the battery system temperature measurement data;
- receive the ambient temperature measurement data;
- receive the current measurement data;
- and
- determine an average estimated temperature of the battery system using, at least in part, an extended Kalman filter based on the battery system temperature measurement data, the ambient temperature measurement data, the current measurement data, an energy balance process model associated with the battery system, and a temperature parameter associated with the cooling system.
Dependencies are inferred from the claim text.