Battery control apparatus and battery control system

Patent metadata

Field	Value
Publication number	US-2017194673-A1
Application number	US-201715399018-A
Country	US
Kind code	A1
Filing date	Jan 5, 2017
Priority date	Jan 5, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A slave control apparatus including a receiver and a controller. The receiver is configured to receive a sensed physical quantity of a battery and a sensed output physical quantity of a converter corresponding to the battery. The controller is configured to determine state information of the battery based on the sensed physical quantity and the sensed output physical quantity, transmit the state information to a master control apparatus, and control the converter based on output information from the master control apparatus that corresponds to the state information.

First claim

What is claimed is:

1 . A slave control apparatus, comprising:
a receiver configured to receive a sensed physical quantity of a battery and a sensed output physical quantity of a converter corresponding to the battery; and a controller configured to determine state information of the battery based on the sensed physical quantity and the sensed output physical quantity, transmit the state information to a master control apparatus, and control the converter based on output information from the master control apparatus that corresponds to the state information.

2 . The slave control apparatus of claim 1 , wherein a sensing point in time of the sensed physical quantity corresponds to a sensing point in time of the sensed output physical quantity.

3 . The slave control apparatus of claim 1 , wherein the receiver is configured to perform calculation using a first value of a first current sensed at a first sensing point in time and a second value of a second current sensed at the first sensing point in time,
the first current corresponds to a current flowing between a high voltage load and the battery, and the second current corresponds to an output current from the converter to a low voltage load.

4 . The slave control apparatus of claim 3 , wherein the controller is configured to determine the state information based on at least one of a result of the performing of the calculation, a sensed thermal physical quantity of the battery, and a sensed electrical physical quantity of the battery.

5 . The slave control apparatus of claim 1 , wherein the output information is based on a required physical quantity of a low voltage load.

6 . The slave control apparatus of claim 1 , wherein pack state information of a battery pack, which comprises the battery and another battery, is based on the state information of the battery and state information of the other battery.

7 . The slave control apparatus of claim 1 , wherein the controller is configured to control a temperature of the battery based on the sensed physical quantity of the battery.

8 . The slave control apparatus of claim 1 , wherein the controller is configured to sense a leakage current of the battery based on a variance in a resistance of an insulation resistor corresponding to the battery.

9 . A battery control system, comprising:
slave control apparatuses corresponding to batteries, respectively; and a master control apparatus configured to control the slave control apparatuses, wherein each of the slave control apparatuses is configured to receive a sensed physical quantity of a corresponding battery and a sensed output physical quantity of a converter corresponding to the corresponding battery, determine state information of the corresponding battery based on the sensed physical quantity and the sensed output physical quantity, transmit the state information to the master control apparatus, and control the converter based on output information from the master control apparatus that corresponds to the state information.

10 . The battery control system of claim 9 , wherein a sensing point in time of the sensed physical quantity corresponds to a sensing point in time of the sensed output physical quantity.

11 . The battery control system of claim 10 , wherein each of the slave control apparatuses is configured to perform calculation using a first value of a first current sensed at a first sensing point in time and a second value of a second current sensed at the first sensing point in time,
the first current corresponds to a current flowing between a high voltage load and the corresponding battery, and the second current corresponds to an output current from the converter to a low voltage load.

12 . The battery control system of claim 11 , wherein each of the slave control apparatuses is configured to determine the state information based on at least one of the performing of the calculation, a sensed thermal physical quantity of the corresponding battery, and a sensed electrical physical quantity of the corresponding battery.

13 . The battery control system of claim 9 , wherein the master control apparatus is configured to determine the output information to correspond to the state information based on a required physical quantity of a low voltage load.

14 . The battery control system of claim 9 , wherein the master control apparatus is configured to determine pack state information of a battery pack comprising the batteries based on the state information of the corresponding battery transmitted by each of the slave control apparatuses.

15 . The battery control system of claim 9 , wherein each of the slave control apparatuses is configured to control a temperature of the corresponding battery based on the sensed physical quantity of the corresponding battery.

16 . The battery control system of claim 9 , wherein each of the slave control apparatuses is configured to sense a leakage current of the corresponding battery based on a variance in a resistance of an insulation resistor of the corresponding battery.

17 . An operating method of a slave control apparatus, the method comprising:
receiving a sensed physical quantity of a battery and a sensed output physical quantity of a converter; determining state information of the battery based on the sensed physical quantity and the sensed output physical quantity; transmitting the state information to a master control apparatus; receiving output information corresponding to the state information from the master control apparatus; and controlling the converter based on the output information.

18 . The method of claim 17 , wherein a sensing point in time of the sensed physical quantity corresponds to a sensing point in time of the sensed output physical quantity.

19 . The method of claim 17 , wherein the receiving comprises performing calculation using a first value of a first current sensed at a first sensing point in time and a second value of a second current sensed at the first sensing point in time,
the first current corresponds to a current flowing between a high voltage load and the battery, and the second current corresponds to an output current of the converter, the current output to a low voltage load.

20 . The method of claim 19 , wherein the determining comprises determining the state information based on at least one of a result of performing the calculation, a sensed thermal physical quantity of the battery, and a sensed electrical physical quantity of the battery.

21 . A slave control apparatus, comprising:
a sensor configured to sense a physical quantity of a battery, a receiver configured to receive the physical quantity of the battery and an output physical quantity of a converter; and a controller configured to determine state information of the battery based on the physical quantity of the battery and the output physical quantity of the converter, wherein the physical quantity of the battery and the output physical quantity of the converter are sensed at a synchronized point in time.

22 . The slave control apparatus of claim 21 , wherein the state information of the battery comprises at least one of a state of charge (SOC), a state of health (SOH), and a capacity of the battery.

23 . The slave control apparatus of claim 21 , wherein, in response to the state information of the battery being determined, the controller transmits the state information of the battery to a master control a

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jeon Jinyong

Classifications

• H02J7/00 Primary

  Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• G01R31/389

  Measuring internal impedance, internal conductance or related variables · CPC title

• H04Q2209/30

  using a wired architecture · CPC title

• H01M10/615

  Heating or keeping warm · CPC title