Battery management system for transmitting secondary protection signal and diagnosis signal using a small number of insulation elements
AssigneeLG Chem, Ltd.
InventorsJu-Hyun Kang, Yasuhito Eguchi, Shoji Tanina
Life of this patent
Estimating the term…
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.
Claims18
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;
- and
- N insulation elements connected between the external control device and the battery management system and configured to transmit a signal while electrically separating the external device from the N communication lines,
- wherein each battery management unit transmits at least two pieces of data through time division.
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 control device from the battery management system;
- a switch configured to selectively connect any one of the N communication lines to the insulation element by a control signal;
- and
- a switch controller configured to output a control signal to the switch,
- wherein each battery management unit transmits at least two pieces of data through time division.
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 control device from the battery management system;
- and
- a calculator electrically connected to the N communication lines to connect any one of the N communication lines to the insulation element,
- wherein each battery management unit transmits at least two pieces of data through time division.
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 control device from the battery management system;
- and
- a signal mixer electrically connected to the N communication lines to mix signals received through the N communication lines,
- wherein each battery management unit transmits at least two pieces of data through time division.
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;
- a communication line electrically connected to the N battery management units 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 control device from the battery management system;
- and
- a signal mixer electrically connected to the communication line to mix signals received from each battery management unit through the communication line,
- wherein each battery management unit transmits at least two pieces of data through time division.
Dependencies are inferred from the claim text.