Battery management apparatus
First Claim
1. A battery management system for managing a string of cells including a sensing module;
- a DC/DC converter;
a control module coupled to the sensing module and the DC/DC converter; and
a common line coupled to both the sensing module and the DC/DC converter and adapted for connection to a battery when in use, wherein the sensing module is configured to receive battery information from the common line and output a sensing signal to the control module in accordance with the battery information, wherein the control module is configured to receive the sensing signal from the sensing module and output a control signal in accordance with the battery information, and wherein the DC/DC converter has a first port configured to be coupled across a plurality of cells of the string and a second port coupled to the common line, the DC/DC converter operative to transfer energy between the first and second ports to feed and/or drain a battery connected to the common line when in use in accordance with the control signal.
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0 Petitions
Accused Products
Abstract
A battery management system includes a sensing module, a feeding module, a control module, and a common line adapted for connection to a battery when in use. In some embodiments, a battery management apparatus for managing a substring of cells in a string of cells includes a DC bus, a multiplexer/demultiplexer circuit operative to selectively couple nodes of the substring of cells to the DC bus, a DC/DC converter circuit having a first port configured to be coupled across a plurality of cells of the string and a second port coupled to the DC bus, the DC/DC converter operative to transfer energy between the first and second ports, a sensor circuit coupled to the DC bus, and a controller circuit configured to connect to a communications bus and operatively associated with the multiplexer/demultiplexer circuit, the DC/DC converter and the sensor circuit.
42 Citations
27 Claims
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1. A battery management system for managing a string of cells including a sensing module;
- a DC/DC converter;
a control module coupled to the sensing module and the DC/DC converter; and
a common line coupled to both the sensing module and the DC/DC converter and adapted for connection to a battery when in use, wherein the sensing module is configured to receive battery information from the common line and output a sensing signal to the control module in accordance with the battery information, wherein the control module is configured to receive the sensing signal from the sensing module and output a control signal in accordance with the battery information, and wherein the DC/DC converter has a first port configured to be coupled across a plurality of cells of the string and a second port coupled to the common line, the DC/DC converter operative to transfer energy between the first and second ports to feed and/or drain a battery connected to the common line when in use in accordance with the control signal. - View Dependent Claims (2, 6, 7)
- a DC/DC converter;
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3. A battery management system for managing a string of cells including a sensing module;
- a DC/DC converter; and
a control module coupled to the sensing module and the DC/DC converter;
wherein the sensing module is configured to receive battery information from a common line and output a sensing signal to the control module in accordance with the battery information, wherein the control module is configured to receive the sensing signal from the sensing module and output a control signal in accordance with the battery information, wherein the DC/DC converter has a first port configured to be coupled across a plurality of cells of the string and a second port coupled to the common line, the DC/DC converter operative to transfer energy between the first and second ports to feed and/or drain a battery connected to the DC/DC converter when in use in accordance with the control signal in order to perform equalization of the string of serially connected batteries, and wherein the control module is configured to perform one or more additional battery monitoring or management tasks. - View Dependent Claims (4, 5, 26, 27)
- a DC/DC converter; and
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8. A battery management apparatus for managing a substring of cells in a string of cells, the apparatus comprising:
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a DC bus; a multiplexer/demultiplexer circuit operative to selectively couple nodes of the substring of cells to the DC bus; a DC/DC converter circuit having a first port configured to be coupled across a plurality of cells of the string and a second port coupled to the DC bus, the DC/DC converter operative to transfer energy between the first and second ports; a sensor circuit coupled to the DC bus; and a controller circuit configured to connect to a communications bus and operatively associated with the multiplexer/demultiplexer circuit, the DC/DC converter and the sensor circuit. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification