Communication terminal for constructing daisy chain communication network without distinction between input connector and output connector

• US 9,800,072 B2
• Filed: 10/20/2014
• Issued: 10/24/2017
• Est. Priority Date: 10/18/2013
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Park, Jong-Min, Heo, Jin-Seok
• Primary Examiner(s): Tat, Binh
• Application Number:
  US14/767,680
• Publication Number:
  US 20150372524A1
• Time in Patent Office: 1,100 Days
• Field of Search: 320107-115
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 1/32 Means for saving power
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/3215 Monitoring of peripheral devices
• CPC Class Codes: G06F 13/00 Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units interface circuits for specific input/output devices G06F3/00 ; multiprogram control therefor G06F9/46; multiprocessor systems G06F15/16
• CPC Class Codes: G06F 13/4247 on a daisy chain bus
• CPC Class Codes: H02J 7/0018 using separate charge circuits
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

Disclosed is a communication terminal for constructing a daisy chain communication network without distinction between an input connector and an output connector.

Claims

1. A communication terminal which is connected via a serial communication network, the communication terminal comprising:

a control unit having an input port and an output port;

a first connector electrically connected to the input port and the output port;

a second connector electrically connected to the input port and the output port;

a first-first diode electrically connected between the first connector and the input port to allow an electric current to flow in a direction from the first connector toward the input port;

a first-second diode electrically connected between the first connector and the output port to allow an electric current to flow in a direction from the output port toward the first connector;

a second-first diode electrically connected between the second connector and the output port to allow an electric current to flow in a direction from the output port toward the second connector; and

a second-second diode electrically connected between the second connector and the input port to allow an electric current to flow in a direction from the second connector toward the input port,

wherein the control unit measures an electrical characteristic value of a secondary battery.

2. The communication terminal according to claim 1, wherein the input port receives a signal for waking up the control unit in a sleep state.

3. The communication terminal according to claim 1, wherein the output port outputs a signal for waking up other control unit in a sleep state.

4. The communication terminal according to claim 1, wherein the serial communication network is a daisy chain.

5. The communication terminal according to claim 1, wherein the electrical characteristic value of the secondary battery is a value of at least one of voltage and current of the secondary battery.

6. A battery pack comprising:

a battery management system comprising a communication terminal according to claim 1; and

a plurality of battery modules comprising a plurality of secondary batteries electrically connected.

7. The battery pack according to claim 6, wherein each battery management system is electrically connected to each battery module.

8. A battery operating system comprising:

a battery pack according to claim 7; and

a load which is supplied with power from the battery pack.

9. The battery operating system according to claim 8, wherein the load is an electrical drive means or a portable device.