System and method for determining battery temperature
First Claim
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1. A system for approximating a temperature of a battery, said system comprising:
- a sensor configured to provide a temperature measurement of the ambient air;
a sensor configured to provide a voltage measurement of the battery;
a sensor configured to provide a current measurement of the battery; and
signal processing circuitry configured to determine an approximate battery temperature as a function of the measured ambient air temperature, the measured voltage of the battery, and the measured current through the battery.
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Abstract
A system for approximating a temperature of a battery includes a sensor configured to provide a temperature measurement of the ambient air, a sensor configured to provide a voltage measurement of the battery, a sensor configured to provide a current measurement of the battery, and signal processing circuitry configured to determine an approximate battery temperature as a function of the measured ambient air temperature, the measured voltage of the battery, and the measured current of the battery.
35 Citations
36 Claims
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1. A system for approximating a temperature of a battery, said system comprising:
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a sensor configured to provide a temperature measurement of the ambient air;
a sensor configured to provide a voltage measurement of the battery;
a sensor configured to provide a current measurement of the battery; and
signal processing circuitry configured to determine an approximate battery temperature as a function of the measured ambient air temperature, the measured voltage of the battery, and the measured current through the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for approximating a temperature of a battery, the system comprising:
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a sensor configured to provide a temperature measurement of the ambient air;
a sensor configured to provide a current measurement of the battery; and
signal processing circuitry responsive to the sensors, the signal processing circuitry including a memory configured to store data of resistance of the battery corresponding to temperature of the battery, the signal processing circuitry being configured to calculate an initial temperature of the battery at least partially based on the measured ambient air temperature, to calculate a heat generated inside the battery based on the resistance and measured current through the battery, and to calculate the approximation of the temperature of the battery based on the calculated values for the initial battery temperature and the heat generated inside the battery. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 30, 31, 32)
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18. A method of approximating a temperature of a battery in a system in an operation, said method comprising:
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approximating an initial temperature of the battery;
approximating heat generated inside the battery; and
approximating the temperature of the battery at least partially based on the approximated initial temperature of the battery and the approximated heat generated inside the battery. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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33. An engine system comprising:
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an engine;
a battery coupled to the engine;
a battery charging system coupled to the battery;
a controller coupled to the engine and the battery charging system;
a sensor configured to provide a temperature measurement of the ambient air;
a sensor configured to provide a voltage measurement of the battery; and
a sensor configured to provide a current measurement of the battery, wherein the controller is responsive to the sensors and configured to calculate an approximate temperature of the battery, and configured to control the battery charging system based on the approximate temperature of the battery. - View Dependent Claims (34)
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35. An engine system comprising:
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an engine;
a battery coupled to the engine;
a battery charging system coupled to the battery;
a controller coupled to the engine and the battery charging system, the controller including a memory for storing data of resistance of the battery corresponding to temperature of the battery;
a sensor configured to provide a temperature measurement of the ambient air; and
a sensor configured to provide a current measurement of the battery, wherein the controller is responsive to the sensors and configured to calculate an approximate temperature of the battery, and configured to control the battery charging system based on the temperature of the battery. - View Dependent Claims (36)
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Specification