BALANCED BATTERY PACK SYSTEM BASED ON TWO-WAY ENERGY TRANSFER
First Claim
1. A balanced battery pack system based on two-way energy transfer, comprising battery modules and battery management units, wherein the battery modules connected in series with each other through a high-voltage bus;
- the balanced battery pack system based on two-way energy transfer also comprising a BMS master-control unit and a high-voltage two-way DC/DC circuit module, wherein a first port of the BMS master-control unit connected with a first port of the high-voltage two-way DC/DC circuit module through an internal power bus;
a second port of the BMS master-control unit connected with a second port of the high-voltage two-way DC/DC circuit module through an internal CAN bus;
a third port of the BMS master-control unit connected with a third port of the high-voltage two-way DC/DC circuit module through an internal control bus; and
the battery modules connected with the internal power bus and the internal CAN bus through the battery management units.
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Abstract
The invention relates to the technical field of cell balancing system, in particular to a balanced battery pack system based on two-way energy transfer, which comprises battery modules, battery management units, a BMS (Battery Management System) master-control unit and a high-voltage two-way DC/DC circuit module, wherein the battery modules are connected with an internal power bus and an internal CAN (Controller Area Network) bus through the battery management units. The balanced battery pack system based on two-way energy transfer utilizes the high-voltage two-way DC/DC circuit module and the public internal power bus and performs centralized control on the number of balanced channels in the whole battery pack through the BSM master-control unit to realize energy transfer, thus achieving the balancing between various single cells in the whole battery pack and between the battery modules.
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Citations
17 Claims
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1. A balanced battery pack system based on two-way energy transfer, comprising battery modules and battery management units, wherein the battery modules connected in series with each other through a high-voltage bus;
the balanced battery pack system based on two-way energy transfer also comprising a BMS master-control unit and a high-voltage two-way DC/DC circuit module, wherein a first port of the BMS master-control unit connected with a first port of the high-voltage two-way DC/DC circuit module through an internal power bus;
a second port of the BMS master-control unit connected with a second port of the high-voltage two-way DC/DC circuit module through an internal CAN bus;
a third port of the BMS master-control unit connected with a third port of the high-voltage two-way DC/DC circuit module through an internal control bus; and
the battery modules connected with the internal power bus and the internal CAN bus through the battery management units.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification
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- Resources
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Current AssigneeDongguan NVT Technology Co., Ltd.
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Original AssigneeJianguo Hu
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InventorsHU, Jianguo, Huang, Shilin, Cheng, Yong
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Application NumberUS13/424,293Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current320/118CPC Class CodesH02J 7/00036 Charger exchanging data wit...H02J 7/00047 with provisions for chargin...H02J 7/0018 using separate charge circuits
