METHOD AND APPARATUS FOR MONITORING THE STATE OF THE BATTERY OF A HYBRID ELECTRIC VEHICLE
First Claim
c1. c1] A method of indicating for a battery of an automotive vehicle comprising:
- monitoring a state of charge of the battery;
monitoring a temperature outside of the vehicle;
comparing the state of charge to a predetermined state of charge, said predetermined state of charge being a function of said temperature; and
generating an indicator when the state of charge reached the predetermined state of charge.
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Accused Products
Abstract
A system (40) for an automotive vehicle has a temperature sensor (90) generating a temperature signal indicative of the temperature outside the vehicle and a battery. A battery controller (54) is coupled to the temperature sensor (90) and the battery (64). The controller monitors a state of charge of the battery (64), monitors a temperature outside of the vehicle and compares the state of charge to a predetermined state of charge. The predetermined state of charge is a function of the temperature. The controller (54) generates an indicator when the state of charge reaches the predetermined state of charge.
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Citations
0 Claims
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c1. c1] A method of indicating for a battery of an automotive vehicle comprising:
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monitoring a state of charge of the battery;
monitoring a temperature outside of the vehicle;
comparing the state of charge to a predetermined state of charge, said predetermined state of charge being a function of said temperature; and
generating an indicator when the state of charge reached the predetermined state of charge.
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c2. c2] A method as recited in claim 1 wherein when monitoring a state of charge comprises measuring a battery voltage and measuring a battery current.
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c3. c3] A method as recited in claim 1 further comprising performing an evasive action to modify a change in the state of charge.
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c4. c4] A method as recited in claim 3 wherein performing an evasive action comprises decoupling a load.
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c5. c5] A method as recited in claim 1 wherein said predetermined state of charge corresponds to a starting state of charge to enable starting of the engine with a starter/generator.
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c6. c6] A method as recited in claim 1 wherein generating an indicator comprises generating a visual indicator.
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c7. c7] A method as recited in claim 1 wherein generating an indicator comprises generating an audible indicator.
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c8. c8] A method as recited in claim 1 wherein generating an indicator comprises generating a page through a cellular phone system.
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c9. c9] A method as recited in claim 1 further comprising monitoring a weather forecast, wherein said predetermined state of charge being a function of said weather forecast.
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c10. c10] A method as recited in claim 9 wherein monitoring a weather forecast comprises monitoring a weather forecast using a vehicle telematic system and a global positioning system
A method as recited in claim 1 further comprising monitoring a battery state of health; - comparing the battery state of health to a predetermined state of health;
generating an indicator when the battery state of health reaches the predetermined state of health.
- comparing the battery state of health to a predetermined state of health;
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c11. c11] A method of indicating for a battery of an automotive vehicle comprising:
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monitoring a state of charge of the battery;
monitoring a battery state of health;
monitoring a temperature outside of the vehicle;
comparing the state of charge to a predetermined state of charge, said predetermined state of charge being a function of said temperature;
comparing the battery state of health to a predetermined state of health; and
generating an indicator when the battery state of health reaches the predetermined state of health or when the state of charge reached the predetermined state of charge.
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c12. c12] A method as recited in claim 12 further comprising performing an evasive action to modify a change in the state of charge.
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c13. c13] A method as recited in claim 12 wherein said predetermined state of charge corresponds to a starting state of charge to enable starting of the engine.
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c14. c14] A method as recited in claim 12 wherein generating an indicator comprises generating a page through a cellular phone system.
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c15. c15] A method as recited in claim 12 further comprising monitoring a weather forecast, wherein said predetermined state of charge being a function of said weather forecast.
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c16. c16] A method as recited in claim 16 wherein monitoring a weather forecast comprises monitoring a weather forecast using a vehicle telematics system and a global positioning system
A system for an automotive vehicle comprising: -
a temperature sensor generating a temperature signal indicative of the temperature outside the vehicle;
a battery; and
a battery controller coupled to the temperature sensor and the battery, said controller monitoring a state of charge of the battery, comparing the state of charge to a predetermined state of charge, said predetermined state of charge being a function of said temperature signal, said controller generating an indicator when the state of charge reaches the predetermined state of charge.
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c17. c17] A system as recited in claim 18 further comprising a telematics system obtaining a weather forecast, said predetermined state of charge being a function of the weather forecast.
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c18. c18] A system as recited in claim 18 further comprising a voltage sensor coupled to the battery for generating a voltage signal indicative of the battery voltage and a current sensor coupled to the battery for generating a current voltage signal indicative of the battery current.
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c19. c19] A system as recited in claim 1 8 further comprising a starter/generator a starting load, wherein said predetermined state of charge being a function of said temperature and said starting load.
Specification