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公开(公告)号:US10063070B2
公开(公告)日:2018-08-28
申请号:US15361321
申请日:2016-11-25
Inventor: Wei-Min Hsiao , Kuo-Kuang Jen , Jeng-Chyan Lin , Hsun-Ming Hsien , Fu-Min Fang
CPC classification number: H02J7/0019 , G01R19/16542 , G01R31/396 , H01M10/425 , H01M10/441 , H01M10/482 , H01M2010/4271 , H02J7/0026 , H02J7/35
Abstract: A battery active-balancing system comprises an external balancing power; a buck converter having a first side-winding and a second side-winding induced thereby, the first side-winding and the second side-winding each having a positive terminal and a negative terminal; a battery comprising series-connected cell-units each having a positive terminal and a negative terminal; a cell voltage-sensing unit coupled to the battery to sense a voltage of each cell unit of the series-connected cell-units; a main switch component coupled to the first side-winding and the battery in an ON state, or coupled to the first side-winding and the external balancing power in an OFF state; a cell-switch unit comprising first cell-switch components and second cell-switch components, wherein each of the first cell-switch components is coupled to the positive terminal of corresponding one cell-unit and the positive terminal of the second side-winding, and each of the second cell-switch components is coupled to the negative terminal of corresponding one cell-unit and the negative terminal of the second side-winding; and a microcontroller for controlling the main switch component and the cell-switch unit, and determining a voltage level fed back from the cell voltage-sensing unit.
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公开(公告)号:US10377262B2
公开(公告)日:2019-08-13
申请号:US15370889
申请日:2016-12-06
Inventor: Wei-Min Hsiao , Kuo-Kuang Jen , Jeng-Chyan Lin , Hsun-Ming Hsien , Fu-Min Fang
Abstract: Electric vehicle range extending apparatus includes a step-down voltage provision unit, cell voltage sensing unit, cell switching unit, and control unit. The step-down voltage provision unit has an input port to be coupled to the main battery pack or an auxiliary battery pack, and an output port to output a power balancing signal. The cell voltage sensing unit is for being coupled to the battery cells and sensing individual voltages of the battery cells. The cell switching unit, including a plurality of switches, is coupled to the battery cells respectively, and coupled to the output port. The control unit, coupled to the cell voltage sensing unit, step-down voltage provision unit, and cell switching unit, is for controlling the cell switching unit based on the individual voltages of the battery cells so as to apply the power balancing signal to at least one of the battery cells selectively.
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公开(公告)号:US10594143B2
公开(公告)日:2020-03-17
申请号:US15837114
申请日:2017-12-11
Inventor: Wei-Min Hsiao , Jeng-Chyan Lin , Kuo-Kuang Jen , Fu-Min Fang
Abstract: A charging method for a battery set with a plurality of battery cells, having steps of performing a serial charging on the battery cells; determining whether one of the battery cells reaches a saturation voltage; and performing a uniform separately charging on the battery cells when one of the battery cells reaches the saturation voltage, wherein the uniform separately charging comprises sorting the battery cells according to cell voltages of the battery cells; and sequentially and separately charging the sorted battery cells to a Nth segmented voltage in a Nth segmentation, wherein N is a positive integer from 1 to K, and K is a positive integer larger than 1. The charging method of the present disclosure can reduce the temperature rising of the battery cell due to the longtime charging.
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公开(公告)号:US10404527B2
公开(公告)日:2019-09-03
申请号:US15837026
申请日:2017-12-11
Inventor: Wei-Min Hsiao , Jeng-Chyan Lin , Kuo-Kuang Jen , Fu-Min Fang
Abstract: An electrical system having a master node, at least one slave node and a bus linked to both of the master node and the slave node is illustrated. The master node check whether a reception register of the slave node does not receives a new data for a first time period, and resets the slave node while the reception register of the slave node does not receives the new data for the first time period; and the slave node checks whether the reception register of the slave node does not receives the new data for a second time period, and resets the slave node itself while the reception register of the slave node does not receives the new data for the second time period. Therefore, the communication stability of the electrical system can be enhanced.
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