Battery system balancing control method for performing balancing control with aid of reference voltage information and battery system thereof
First Claim
1. A battery system balancing control method for performing balancing control with aid of reference voltage information, the battery system balancing control method being applied to a power supply device, the battery system balancing control method comprising the steps of:
- after a first reference resistor of a plurality of reference resistors is installed into a first battery module of a set of battery modules connected in series within the power supply device and a second reference resistor of the plurality of reference resistors is installed into a second battery module of the set of battery modules and the reference resistors are electrically connected in series, converting a total voltage of the set of battery modules into the reference voltage information, wherein the first battery module comprises a first battery cell having a first battery voltage, the second battery module comprises a second battery cell having a second battery voltage, and the reference voltage information comprises a first set of reference voltage levels corresponding to the first reference resistor and a second set of reference voltage levels corresponding to the second reference resistor; and
performing balancing control of the first battery module according to the first set of reference voltage levels corresponding to the first reference resistor, and performing balancing control of the second battery module according to the second set of reference voltage levels corresponding to the second reference resistor.
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Abstract
A battery system balancing control method for performing balancing control with aid of reference voltage information and battery system are provided. The battery system balancing control method includes: after a specific reference resistor of a plurality of reference resistors is installed into a specific battery module of a set of battery modules connected in series within a power supply device and the reference resistors are electrically connected in series, converting a total voltage of the set of battery modules into the reference voltage information, wherein each battery module of the set of battery modules includes at least one battery cell, and the reference voltage information includes a plurality of sets of reference voltage levels respectively corresponding to the reference resistors; and performing balancing control of the specific battery module according to a set of reference voltage levels corresponding to the specific reference resistor within the sets of reference voltage levels.
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Citations
20 Claims
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1. A battery system balancing control method for performing balancing control with aid of reference voltage information, the battery system balancing control method being applied to a power supply device, the battery system balancing control method comprising the steps of:
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after a first reference resistor of a plurality of reference resistors is installed into a first battery module of a set of battery modules connected in series within the power supply device and a second reference resistor of the plurality of reference resistors is installed into a second battery module of the set of battery modules and the reference resistors are electrically connected in series, converting a total voltage of the set of battery modules into the reference voltage information, wherein the first battery module comprises a first battery cell having a first battery voltage, the second battery module comprises a second battery cell having a second battery voltage, and the reference voltage information comprises a first set of reference voltage levels corresponding to the first reference resistor and a second set of reference voltage levels corresponding to the second reference resistor; and performing balancing control of the first battery module according to the first set of reference voltage levels corresponding to the first reference resistor, and performing balancing control of the second battery module according to the second set of reference voltage levels corresponding to the second reference resistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A battery system for performing balancing control with aid of reference voltage information, the battery system comprising at least one portion of a power supply device, the battery system comprising:
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a first battery module, which is one of a set of battery modules connected in series within the power supply device, wherein the first battery module comprises; a first battery cell having a first battery voltage; a first reference resistor, which is one of a plurality of reference resistors electrically connected in series to convert a total voltage of the set of battery modules into the reference voltage information, wherein the first reference resistor of the plurality of reference resistors is installed into the first battery module to generate a first set of reference voltage levels, and the reference voltage information comprises the first set of reference voltage levels; and a first balancing control circuit, electrically connected to the first battery cell and the first reference resistor, arranged to perform balancing control of the first battery module according to the first set of reference voltage levels corresponding to the first reference resistor; and a second battery module, which is another one of the set of battery modules connected in series within the power supply device, wherein the second battery module comprises; a second battery cell connected to the first battery cell in series and having a second battery voltage; a second reference resistor connected to the reference resistor in series and being another one of the plurality of reference resistors electrically connected in series to convert the total voltage of the set of battery modules into the reference voltage information, wherein the second reference resistor of the plurality of reference resistors is installed into the second battery module to generate a second set of reference voltage levels, and the reference voltage information comprises the second set of reference voltage levels; and a second balancing control circuit, electrically connected to the second battery cell and the second reference resistor, arranged to perform balancing control of the second battery module according to the second set of reference voltage levels corresponding to the second reference resistor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification