Cost effective configuration for supercapacitors for HEV
First Claim
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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 supercapacitors is arranged in parallel with others of the N supercapacitors and with the at least one battery, and wherein N is an integer greater than one; 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.
27 Citations
20 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 supercapacitors is arranged in parallel with others of the N supercapacitors and with the at least one battery, and wherein N is an integer greater than one; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A rechargeable energy storage method for a hybrid electric vehicle comprising:
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providing at least one battery; arranging each of N supercapacitors in parallel with the at least one battery, wherein N is an integer greater than or equal to one; and 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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for a hybrid electric vehicle, the system comprising:
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a battery system that includes a plurality of batteries connected in series, the battery system being configured to output a current for powering an electric motor of the hybrid electric vehicle, wherein the electric motor is configured to propel the hybrid electric vehicle; a supercapacitor system that includes a plurality of supercapacitors connected in parallel, the supercapacitor system being connected in parallel to the battery system and being configured to output additional current for powering the electric motor of the hybrid electric vehicle when a current requested by the electric motor is greater than the current being output by the battery system; and an adjustable switching regulator connected between the battery system and the supercapacitor system, the adjustable switching regulator being configured to maintain a voltage across the supercapacitor system at less than or equal to a predetermined voltage threshold and to enable recharging of the supercapacitor system. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification