ENERGY MANAGEMENT SYSTEM
First Claim
1. A battery management system comprising:
- a plurality of sheets each comprising a plurality of energy storage devices and an active balancing circuit, the active balancing circuit being configured to identify one of the plurality of energy storage devices having a lowest voltage as a lowest voltage device, and use power received from a portion of the plurality of energy storage devices to charge the lowest voltage device; and
a buffer circuit connected to the plurality of sheets and operable to transfer power; and
a master management system connected to the buffer circuit and the active balancing circuit of each of the plurality of sheets, the master management system receiving information from the active balancing circuit of each of the plurality of sheets and using the information to identify a second portion of the plurality of sheets, the master management system being configured to instruct the buffer circuit to receive first power from a first portion of the plurality of sheets, and send at least a portion of the first power as second power to the second portion of the plurality of sheets.
1 Assignment
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Accused Products
Abstract
A battery management system including sheets, a buffer circuit, and a master management system. The sheets each include energy storage devices and an active balancing circuit configured to use power received from a portion of the devices to charge a lowest voltage one of the devices. The master management system uses information received from the active balancing circuit of each of the sheets to identify a second portion of the sheets and instructs the buffer circuit to receive first power from a first portion of the sheets, and send at least a portion of the first power to the second portion of the sheets. The battery management system may be included in an electric vehicle. Each of the sheets may include a communication hardware module that sends a parameter to the master management system, which the master management system may send in a data package to an external computing system.
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Citations
24 Claims
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1. A battery management system comprising:
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a plurality of sheets each comprising a plurality of energy storage devices and an active balancing circuit, the active balancing circuit being configured to identify one of the plurality of energy storage devices having a lowest voltage as a lowest voltage device, and use power received from a portion of the plurality of energy storage devices to charge the lowest voltage device; and a buffer circuit connected to the plurality of sheets and operable to transfer power; and a master management system connected to the buffer circuit and the active balancing circuit of each of the plurality of sheets, the master management system receiving information from the active balancing circuit of each of the plurality of sheets and using the information to identify a second portion of the plurality of sheets, the master management system being configured to instruct the buffer circuit to receive first power from a first portion of the plurality of sheets, and send at least a portion of the first power as second power to the second portion of the plurality of sheets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A battery management system configured to communicate with an external computing system, the battery management system comprising:
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a sheet comprising a plurality of energy storage devices, at least one communication hardware module, and a processor, the plurality of energy storage devices being connected together in series, the processor being connected to the at least one communication hardware module and each of the plurality of energy storage devices, the processor being configured to determine at least one parameter for the plurality of energy storage devices, and send the at least one parameter to the at least one communication hardware module; and a master management system operable to communicate with both the at least one communication hardware module and the external computing system, the master management system being configured to receive the at least one parameter from the at least one communication hardware module and send a data package comprising the at least one parameter to the external computing system. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An electric vehicle comprising:
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a battery management system comprising a master management system and a battery pack with a plurality of sheets and a buffer circuit, the plurality of sheets each comprising an energy storage device, the buffer circuit being connected to the plurality of sheets, the master management system receiving information from the plurality of sheets and using the information to identify a second portion of the plurality of sheets, the master management system being configured to instruct the buffer circuit to receive first power from a first portion of the plurality of sheets, and send at least a portion of the first power as second power to the second portion of the plurality of sheets; and an electric motor connected to the battery pack and configured to receive third power from the battery pack. - View Dependent Claims (21, 22, 23, 24)
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Specification