COST EFFECTIVE CONFIGURATION FOR SUPERCAPACITORS FOR HEV
First Claim
Patent Images
1. A rechargeable energy storage system (RESS) for a hybrid electric vehicle comprising:
- a power supply module that includes at least one battery; and
a startup module that includes N supercapacitors, wherein each of the N capacitors is arranged in parallel with others of the N capacitors and with the at least one battery, and wherein N is an integer greater than 1, and an adjustable power supply arranged in series with at least one of the N supercapacitors and in parallel with the at least one battery, wherein the adjustable power supply maintains a voltage across the N supercapacitors below a predetermined voltage.
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Abstract
A rechargeable energy storage system (RESS) for a hybrid electric vehicle includes a power supply module that includes at least one battery. A startup module includes N supercapacitors arranged in parallel with the at least one battery, wherein N is an integer greater than or equal 1, and an adjustable power supply arranged in series with at least one of the N supercapacitors and in parallel with the at least one battery, wherein the adjustable power supply maintains a voltage across the N supercapacitors below a predetermined voltage.
41 Citations
18 Claims
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1. A rechargeable energy storage system (RESS) for a hybrid electric vehicle comprising:
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a power supply module that includes at least one battery; and a startup module that includes N supercapacitors, wherein each of the N capacitors is arranged in parallel with others of the N capacitors and with the at least one battery, and wherein N is an integer greater than 1, and an adjustable power supply arranged in series with at least one of the N supercapacitors and in parallel with the at least one battery, wherein the adjustable power supply maintains a voltage across the N supercapacitors below a predetermined voltage.
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2. The RESS of claim 1 further comprising a regulator control module that monitors the voltage across the N supercapacitors and selectively adjusts the voltage based on a comparison between the voltage and the predetermined voltage.
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3. A system comprising the RESS of claim 1 and further comprising:
a motor control module arranged at least one of in series and in parallel with the N supercapacitors.
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4. The system of claim 3 wherein the N supercapacitors provide current to the motor control module during at least one of a startup period and normal operation of the hybrid electric vehicle.
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5. The RESS of claim 1 wherein the N supercapacitors are charged during at least one of regenerative breaking, normal deceleration, and acceleration of the hybrid electric vehicle.
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6. The RESS of claim 1 wherein a voltage of the adjustable power supply is approximately equal to a working voltage of the N supercapacitors.
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7. The RESS of claim 1 further comprising at least one supercapacitor connected in series with at least one of the N supercapacitors.
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8. The RESS of claim 1 wherein the power supply module includes M batteries and M is an integer greater than or equal to 1.
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9. The RESS of claim 1 wherein the hybrid electric vehicle is a plug-in hybrid electric vehicle.
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10. A rechargeable energy storage method for a hybrid electric vehicle comprising:
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providing at least one battery; and arranging each of N supercapacitors in parallel the at least one battery, wherein N is an integer greater than or equal to 1; arranging an adjustable power supply in series with at least one of the N supercapacitors and in parallel with the at least one battery, wherein the adjustable power supply maintains a voltage across the N supercapacitors below a predetermined voltage.
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11. The method of claim 10 further comprising:
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monitoring the voltage across the N supercapacitors using a regulator control module; and selectively adjusting the voltage based on a comparison between the voltage and the predetermined voltage
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12. The method of claim 10 and further comprising:
arranging a motor control module in parallel with the N supercapacitors.
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13. The method of claim 12 wherein the N supercapacitors provide current to the motor control module during at least one of a startup period and normal operation of the hybrid electric vehicle.
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14. The method of claim 10 wherein the N supercapacitors are charged during at least one of regenerative breaking, normal deceleration, and acceleration of the hybrid electric vehicle.
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15. The method of claim 10 wherein a voltage of the adjustable power supply is approximately equal to a working voltage of the N supercapacitors.
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16. The method of claim 10 wherein at least one supercapacitor is connected in series with at least one of the N supercapacitors.
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17. The method of claim 10 wherein the power supply module includes M batteries and M is an integer greater than or equal to 1.
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18. The method of claim 10 wherein the hybrid electric vehicle is a plug-in hybrid electric vehicle.
Specification