BATTERY MANAGEMENT SYSTEM FOR TRANSMITTING SECONDARY PROTECTION SIGNAL AND DIAGNOSIS SIGNAL USING A SMALL NUMBER OF INSULATION ELEMENTS
First Claim
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1. A battery management system for managing a battery pack, comprising:
- N battery management units configured to manage secondary batteries included in the battery pack, in which N is a natural number greater than or equal to 2;
N communication lines electrically connected to each battery management unit to transmit data to an external device which controls the battery management system;
an insulation element configured to transmit a signal while electrically separating the external device from the battery management system; and
a selective connection device configured to selectively connect any one of the N communication lines to the insulation element by a control signal,wherein each battery management unit transmits at least two pieces of data through time division.
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Abstract
Disclosed is a battery management system for transmitting a secondary protection signal and a diagnosis signal using a small number of insulation elements. N battery management units included in the battery management system transmit at least two pieces of data via one communication line through time division. N data signals transmitted from the N battery management units are transmitted in a sequential order or are mixed to one signal and transmitted to an external device.
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Citations
15 Claims
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1. A battery management system for managing a battery pack, comprising:
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N battery management units configured to manage secondary batteries included in the battery pack, in which N is a natural number greater than or equal to 2; N communication lines electrically connected to each battery management unit to transmit data to an external device which controls the battery management system; an insulation element configured to transmit a signal while electrically separating the external device from the battery management system; and a selective connection device configured to selectively connect any one of the N communication lines to the insulation element by a control signal, wherein each battery management unit transmits at least two pieces of data through time division. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification