APPARATUS FOR SIMULATING BATTERY SYSTEM

• US 20130151227A1
• Filed: 08/03/2012
• Published: 06/13/2013
• Est. Priority Date: 12/12/2011
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: YANG, Jong-Woon, HWANG, Eui-Jeong
• Granted Patent: US 8,935,145 B2
• Time in Patent Office: Days
• US Class Current: 703/18
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery system simulation apparatus that enables a battery system to be stably driven by using simulation data. The battery system simulation apparatus includes a voltage simulator that outputs an imaginary simulation voltage corresponding to a battery included in a battery system, to a battery management unit for controlling the battery, and a simulation verification unit that receives control results of the battery which is generated in dependence upon the imaginary simulation voltage. The control results are transmitted by the battery management unit.

Claims

1. A simulation apparatus, comprising:

a voltage simulator that outputs an imaginary simulation voltage corresponding to a battery included in a battery system, to a battery management unit for controlling the battery; and

a simulation verification unit that receives control results of the battery which is generated in dependence upon the imaginary simulation voltage, the control results being transmitted by the battery management unit.

2. The simulation apparatus of claim 1, further comprising a storage unit that stores the imaginary simulation voltage corresponding to the battery.

3. The simulation apparatus of claim 2, wherein the storage unit stores a plurality of imaginary simulation voltages corresponding to a battery cell and a battery rack, respectively.

4. The simulation apparatus of claim 3, wherein the imaginary simulation voltage indicates charge and discharge states, State Of Charge (SOC)/State Of Power (SOP)/State Of Health (SOH) states, and protection states of excess voltage/low voltage/excess temperature/low temperature/excess current/low current of the battery cell and the battery rack.

5. The simulation apparatus of claim 1, wherein the battery system comprises:

a plurality of tray management units for controlling a plurality of battery trays each comprising at least one battery cell; and

a plurality of rack management units for controlling the tray management units.

6. The simulation apparatus of claim 5, wherein the voltage simulator outputs imaginary simulation voltages corresponding to the battery cells to the tray management units.

7. The simulation apparatus of claim 5, wherein the voltage simulator outputs an imaginary simulation voltage corresponding to the rack to the rack management unit.

8. The simulation apparatus of claim 5, further comprising a system management unit for controlling the rack management units.

9. The simulation apparatus of claim 8, wherein the simulation verification unit receives battery control results transmitted by the system management unit.

10. The simulation apparatus of claim 1, wherein the voltage simulator outputs different imaginary simulation voltages according to a normal mode or a user mode.

11. The simulation apparatus of claim 1, wherein the voltage simulator is driven in the normal mode in which an imaginary simulation voltage that varies according to temperature in a stereotyped charge and discharge method is output.

12. The simulation apparatus of claim 1, wherein the voltage simulator is driven in the user mode in which an imaginary simulation voltage that varies according to temperature in a free charge and discharge method is output.

13. The simulation apparatus of claim 1, wherein the simulation verification unit performs at least one of the following verifications:

a verification of a battery management system firmware verification efficiency based on construction of firmware automatic verification;

a verification of communication and charge and discharge characteristics of the battery system;

a detection of actual test problems in advance through various charge and discharge pattern tests on products; and

a verification of fuel gauge accuracy and a protection function based on multiple condition operation firmware evaluations with regard to voltage, current, and temperature.