Adaptive thermal conditioning for recharageable energy storage systems
AssigneeGM Global Technology Operations LLC
InventorsShobhit Gupta, Chunhao J. Lee, Jun-mo Kang, Yongjie Zhu
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Abstract
A method for controlling chilling of a coolant for cooling a rechargeable energy storage system (RESS) during charging of the RESS. The method includes obtaining a first value representative of an ambient temperature and obtaining a second value representative of a relative humidity. The method also includes determining an estimated dew point based on the first value and the second value and controlling a coolant chiller to maintain a temperature of the coolant to be greater than the estimated dew point during charging of the RESS.
Claims20
A vehicle comprising:
- a battery pack comprising a plurality of battery cells and a plurality of passageways defined between the battery cells, wherein passageways of the plurality of passageways are configured to allow a coolant to flow through the plurality of passageways to cool the plurality of battery cells;
- a coolant chiller configured to chill the coolant for cooling the plurality of battery cells during charging of the battery pack;
- data processing hardware;
- and
- memory hardware in communication with the data processing hardware and storing instructions that, when executed by the data processing hardware, cause the data processing hardware to perform operations comprising:
- obtaining a first value representative of an ambient temperature;
- obtaining a second value representative of a relative humidity;
- determining an estimated dew point based on the first value and the second value;
- and
- controlling the coolant chiller to maintain a temperature of the coolant to be greater than the estimated dew point.
A method for controlling chilling of a coolant for cooling a rechargeable energy storage system (RESS) during charging of the RESS, the method comprising:
- obtaining a first value representative of an ambient temperature;
- obtaining a second value representative of a relative humidity;
- determining an estimated dew point based on the first value and the second value;
- and
- controlling a coolant chiller to maintain a temperature of the coolant to be greater than the estimated dew point during charging of the RESS.
A system for controlling chilling of a coolant for cooling a rechargeable energy storage system (RESS) during charging of the RESS, the system comprising:
- data processing hardware;
- and
- memory hardware in communication with the data processing hardware and storing instructions that, when executed by the data processing hardware, cause the data processing hardware to perform operations comprising:
- obtaining a first value representative of an ambient temperature;
- obtaining a second value representative of a relative humidity;
- determining an estimated dew point based on the first value and the second value;
- and
- controlling a coolant chiller to maintain a temperature of the coolant to be greater than the estimated dew point during charging of the RESS.
Dependencies are inferred from the claim text.