Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Patent
1996-03-12
1998-01-27
Chilcot, Richard
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
364483, G01R 1900, G01K 108
Patent
active
057116059
ABSTRACT:
A vehicle control unit estimates a temperature of the vehicle's battery including the temperature of each of the battery's plurality of cells. The control unit includes a memory unit having stored therein heat transfer coefficients of three types. The first type is representative of heat transfer between the cells of the battery; the second type is representative of heat transfer between the surrounding air and the middle cells of the battery; and the third type is representative of heat transfer between the surrounding air and the end cells of the battery. A microprocessor retrieves the heat transfer coefficients from the memory unit and determines individual cell temperatures of the battery based on the heat transfer coefficients, temperature of the ambient air, and the drive state of the vehicle.
REFERENCES:
patent: 5079716 (1992-01-01), Lenhardt et al.
patent: 5321627 (1994-06-01), Reher
patent: 5349535 (1994-09-01), Gupta
Koeppel Bradley N.
Piontkowski Ronald L.
Reher Michael T.
Weier John J.
Amrozowicz Paul D.
Chilcot Richard
Globe-Union Inc.
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