WO2023090605A1 - 배터리 관리 장치 및 배터리 제어 방법 - Google Patents
배터리 관리 장치 및 배터리 제어 방법 Download PDFInfo
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- WO2023090605A1 WO2023090605A1 PCT/KR2022/013597 KR2022013597W WO2023090605A1 WO 2023090605 A1 WO2023090605 A1 WO 2023090605A1 KR 2022013597 W KR2022013597 W KR 2022013597W WO 2023090605 A1 WO2023090605 A1 WO 2023090605A1
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- battery
- procedure
- standby mode
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- state
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- 230000004913 activation Effects 0.000 claims abstract description 36
- 230000004044 response Effects 0.000 claims abstract description 8
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a battery management device and a battery control method, and more particularly, to a battery management device capable of quickly responding to a request from an upper system and a battery control method using the device.
- a secondary battery which is a battery that can be recharged after use and reused, is manufactured as a battery module or battery pack made by connecting a plurality of battery cells in series according to the output capacity required by the device, and is used as a power source for various devices.
- a battery is used in various fields ranging from electric bicycles, electric vehicles, and energy storage systems (ESS) as well as small high-tech electronic devices such as smart phones.
- ESS energy storage systems
- a battery module or battery pack is a structure in which a plurality of battery cells are combined, and in the case of overvoltage, overcurrent, or overheating in some battery cells, problems occur in the safety and operational efficiency of the battery module or battery pack. means are essential. Accordingly, a battery management system (BMS) that measures voltage values of each battery cell and monitors and controls voltage states of the battery cells based on the measured values is installed in the battery module or battery pack.
- BMS battery management system
- the BMS divides and manages the battery state into a normal state, a low power state, and a shutdown state, and transitions and manages the battery state according to a request from an upper system (eg, a vehicle).
- an upper system eg, a vehicle
- An object of the present invention to solve the above problems is to provide a battery system management device.
- Another object of the present invention to solve the above problems is to provide a battery control method.
- Battery system management device for achieving the above object is a processor; and a memory that stores at least one command executed by the processor, wherein the at least one command sets the state of the battery pack to low power when there is no request related to the use of the battery system from an upper system for a predetermined period of time.
- a command to perform a procedure for switching to a standby mode in the state a command for escaping the procedure for switching to the standby mode in response to a request for activating a battery system when a battery system activation request is received from the upper system while performing a plurality of operations included in the procedure for switching to the standby mode; and a command for transitioning the state of the battery pack to a normal state.
- the procedure of switching to the standby mode may include a procedure of checking whether the battery system activation request has occurred from the upper system whenever each operation included in the procedure of switching to the standby mode is performed.
- the battery system activation request is generated while the corresponding operation is being performed for an operation that takes a time equal to or greater than a threshold value among a plurality of operations included in the procedure for switching to the standby mode. It is characterized in that it checks whether it has been done multiple times.
- the command for escaping the procedure for switching to the standby mode includes a command for performing a rollback operation corresponding to one or more previously performed operations in the reverse order of the one or more previously performed operations during the procedure for switching to the standby mode.
- the upper system may be a vehicle body.
- a first operation included in the procedure of switching to the standby mode is an operation of terminating one device included in the battery management device or controlling it to a sleep or off state, and a rollback operation for the first operation is to turn the device into a sleep or off state. It may be an operation that initiates operation or controls in a normal or on state.
- a battery control method is a battery control method performed by a battery management system (BMS) that manages a battery system, and when there is no request related to the use of the battery system from an upper system for a certain period of time, the battery control method performing a procedure for converting a state of a battery pack into a standby mode, which is a low power state; escaping the procedure of switching to the standby mode in response to a request for activating the battery system when a battery system activation request is received from the upper system while performing a plurality of operations included in the procedure of switching to the standby mode; and transitioning the state of the battery pack to a normal state.
- BMS battery management system
- the process of switching to the standby mode may include checking whether the battery system activation request has occurred from the upper system whenever each operation included in the process of switching to the standby mode is performed.
- the battery system activation request is generated while the corresponding operation is being performed for an operation that takes a time equal to or greater than a threshold value among a plurality of operations included in the procedure for switching to the standby mode. It may include a step of checking whether or not it has been done multiple times.
- the step of escaping from the procedure of switching to the standby mode includes performing a rollback operation corresponding to one or more pre-performed operations in the reverse order of the one or more previously performed operations during the procedure of switching to the standby mode. can do.
- the upper system may be a vehicle body.
- a first operation included in the procedure of switching to the standby mode is an operation of terminating one device included in the battery management device or controlling it to a sleep or off state, and a rollback operation for the first operation is to turn the device into a sleep or off state. It may be an operation that initiates operation or controls in a normal or on state.
- processing delay time required to return to a normal state for a battery activation request generated while a battery pack transitions to a low power state can be minimized.
- FIG. 1 shows the structure of a battery system to which the present invention can be applied.
- FIG. 2 is a diagram illustrating an example of states and state transitions of a battery system.
- FIG. 3 is an operation flowchart of a BMS in a standby mode procedure according to a conventional battery control method.
- FIG. 4 is an operation flowchart related to a standby mode entry procedure in a battery control method according to an embodiment of the present invention.
- FIG. 5 is an operation sequence of a procedure for entering and exiting a standby mode in a battery control method according to an embodiment of the present invention by numbers.
- FIG. 6 is a flowchart of a battery control method according to an embodiment of the present invention.
- first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.
- the term “and/or” includes any combination of a plurality of related listed items or any of a plurality of related listed items.
- FIG. 1 shows the structure of a battery system to which the present invention can be applied.
- a battery pack or battery module may include a plurality of battery cells connected in series.
- a battery cell or module may be charged/discharged by being connected to a load through a positive terminal and a negative terminal.
- the most commonly used battery cell is a lithium-ion (Li-Ion) battery cell.
- a battery management system (BMS) 100 may be installed in such a battery module or battery pack.
- the BMS monitors the current, voltage, and temperature of each battery pack it manages, calculates SOC (State Of Charge) based on the monitoring result, and controls charging and discharging.
- SOC State of Charge
- SOH State of Health; State of Battery Life
- the BMS monitors the battery cells, reads the cell voltage, and transmits it to other systems connected to the battery.
- the BMS also balances the charge of the battery cells equally to prolong the life of the battery system.
- the BMS 100 may include various components such as a fuse, a current sensing element, a thermistor, a switch, and a balancer, and an MCU (Micro Controller Unit) 110 or In most cases, a BMIC (Battery Monitoring Integrated Chip) is additionally included.
- the BMIC may be an IC type component that is located inside the BMS and measures information such as voltage, temperature, and current of the battery cell/module.
- the BMS also monitors the battery cells and reads the cell voltage and forwards it to other systems connected to the battery.
- the BMS includes a communication module 120 for communicating with other systems in the device including the battery system.
- the communication module of the BMS can communicate with other systems in the device using CAN (Controller Area Network). In this case, parts, modules or systems within the BMS are connected to each other via the CAN bus.
- CAN Controller Area Network
- CAN communication Controller Area Network
- CAN communication is a standard communication specification designed to allow microcontrollers or devices to communicate with each other without a host computer in a vehicle.
- CAN communication is a non-host bus type message-based network protocol mainly used for communication between controllers, and is mainly used in vehicles.
- FIG. 2 is a diagram illustrating an example of states and state transitions of a battery system.
- the BMS can manage the battery state by classifying it into a normal mode, a sleep mode, and a shutdown mode.
- Normal mode 21 is a normal operation mode of the battery pack in which the battery pack performs charging and discharging.
- the standby mode 22 is a case where the battery pack is on standby in a low power state, and the shutdown mode 23 represents a case where the operation of the battery pack is stopped.
- the transition from the normal mode to the standby mode is when the battery system is off (for example, the ignition is turned off in the case of a vehicle), the system state is the default (A), and other errors in the system If it does not occur (No Diag. Count-up), it may occur after the 2 second waiting time has elapsed. Also, the transition from the normal mode to the shutdown mode may occur after a waiting time of 2 seconds has elapsed when the battery system is off, the system state is default (A), and the minimum cell voltage (MinCellV) falls below a threshold value. Meanwhile, the transition from the standby mode or the shutdown mode to the normal mode occurs when the battery system is turned on (eg, when the vehicle is started).
- FIG. 3 is an operation flowchart of a BMS in a standby mode procedure according to a conventional battery control method.
- the table of FIG. 3 represents step-by-step program codes executed by a controller or a processor of the BMS, for example, an MCU when the battery enters the standby mode.
- a controller or a processor of the BMS for example, an MCU when the battery enters the standby mode.
- Each device in the BMS performs an operation corresponding to each program code or command under the control of the MCU.
- the battery management application is terminated (Application deinit), and then the device termination procedure (device deinit.) proceeds (S31).
- the device shutdown procedure first, it is checked whether the battery system is in an on state, and if it is in an on state, a transition procedure to a normal state, that is, an application start procedure is performed. When the battery system is off, an operation termination procedure for devices or parts in the BMS is performed.
- Operation termination procedures for devices or parts in the BMS include AFE (Analog Front-end) sleep, FET (field effect transistor) off, history data termination (data save), sensor operation termination, data flash off, LDO ( It includes procedures such as linear & low-dropout) off, charge pump off, SCP (Self Control Protector) off, EEPROM (Electrically Erasable PROM) off, etc., and may include an MCU shutdown procedure in the last step.
- AFE Analog Front-end
- FET field effect transistor
- history data termination data save
- sensor operation termination data flash off
- LDO It includes procedures such as linear & low-dropout) off, charge pump off, SCP (Self Control Protector) off, EEPROM (Electrically Erasable PROM) off, etc., and may include an MCU shutdown procedure in the last step.
- MCU shutdown procedure in the last step.
- the time required to complete the operation of each device is displayed on the right side of each item.
- the BMS operation start procedure (S32) according to the battery activation request may be performed in the opposite order to the operation end procedure, starting with the MCU operation start, data flash on, LDO on, charge pump on, SCP on, EEPROM Procedures such as on, AFE normal, history data start, and sensor start can be performed.
- FIG. 4 is an operation flowchart related to a standby mode entry procedure in a battery control method according to an embodiment of the present invention.
- the BMS records all operations of the standby mode entry process and standby mode exit process as shown in FIG. 4 .
- an active on check is performed for each operation step in the process of entering the standby mode. That is, the activation on check is performed whenever the steps such as AFE sleep, FET off, history data end, sensor operation end, data flash off, LDO off, charge pump off, SCP off, and EEPROM (Electrically Erasable PROM) off are performed. do.
- an activation on check may be performed even during the corresponding operation, and the activation on check may be performed multiple times during the corresponding operation. That is, for an operation that takes a time longer than a threshold value among a plurality of operations included in a procedure for switching to a standby mode, it may be checked multiple times whether the battery system activation request has occurred while the corresponding operation is being performed.
- FIG. 5 is an operation sequence of a procedure for entering and exiting a standby mode in a battery control method according to an embodiment of the present invention by numbers.
- each operation is represented by a number.
- the activity number indicates the operation number in the standby mode entry procedure
- the rollback activity number represents the standby mode Indicates the operation number in the escape procedure.
- each rollback activity number is written to be associated with a corresponding activity number.
- activity number 1 in FIG. 5 represents an application termination operation
- a corresponding rollback activity is an application startup operation and may be represented by number 24.
- the BMS If there is no request for battery activation while the BMS enters the standby mode, it performs all operations in the standby mode entry procedure and then sequentially performs all operations in the standby mode exit procedure.
- operation 16 is performed as the next operation. That is, in this case, operations 8 to 13 and the corresponding rollback operations (operations 15 to 17) are not performed.
- operation No. 7 is a data flash termination operation
- operation No. 16 is a data flash start operation. Thereafter, the BMS sequentially performs operations 23, 22, 21, and 24.
- a rollback operation corresponding to one or more pre-performed operations is performed in the reverse order of the one or more pre-performed operations during the transition to the standby mode.
- the BMS when a battery activation request occurs during the standby mode entry process, the BMS according to the present invention performs a rollback operation corresponding to the operations in the standby mode entry process that has already been performed, thereby transitioning to a normal state and promptly responding to a request from a higher level system. can respond
- FIG. 6 is a flowchart of a battery control method according to an embodiment of the present invention.
- the data processing method according to an embodiment of the present invention may be performed by a controller in the BMS, that is, an MCU, but the operation subject of the method according to the present invention is not limited thereto.
- the controller checks whether there is no request related to the use of the battery system from the upper system for a certain period of time (S610). When there is no request to use the battery for a certain period of time, a procedure for switching the state of the battery pack to a standby mode, which is a low power state, is initiated (S620).
- the battery system activation request is generated while the corresponding operation is being performed for an operation that takes a time equal to or greater than a threshold value among a plurality of operations included in the procedure for switching to the standby mode. It may include a step of checking whether or not it has been done multiple times.
- the procedure for switching to the standby mode is escaped in response to the request.
- the process of escaping from the procedure of switching to the standby mode may be performed by performing a rollback operation corresponding to one or more pre-performed operations during the procedure of switching to the standby mode. In this case, the rollback operation may be performed in the reverse order of one or more previously performed operations.
- control unit transitions the state of the battery pack to a normal state (S650).
- N is the total number of operations included in the standby mode conversion procedure.
- a computer-readable recording medium includes all types of recording devices in which data that can be read by a computer system is stored.
- computer-readable recording media may be distributed to computer systems connected through a network to store and execute computer-readable programs or codes in a distributed manner.
- a block or apparatus corresponds to a method step or feature of a method step.
- aspects described in the context of a method may also be represented by a corresponding block or item or a corresponding feature of a device.
- Some or all of the method steps may be performed by (or using) a hardware device such as, for example, a microprocessor, programmable computer, or electronic circuitry. In some embodiments, one or more of the most important method steps may be performed by such an apparatus.
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Abstract
Description
Claims (12)
- 배터리 시스템을 관리하는 장치로서,프로세서; 및상기 프로세서를 통해 실행되는 적어도 하나의 명령을 저장하는 메모리를 포함하고,상기 적어도 하나의 명령은,일정 시간 동안 상위 시스템으로부터 상기 배터리 시스템의 사용과 관련한 요청이 없는 경우 상기 배터리 팩의 상태를 저전력 상태인 대기 모드로 전환하는 절차를 수행하도록 하는 명령;상기 대기 모드로 전환하는 절차에 포함된 복수의 동작을 수행하던 중 상기 상위 시스템으로부터 배터리 시스템 활성화 요청이 수신되는 경우 해당 요청에 대해 응답하여, 상기 대기 모드로 전환하는 절차를 탈출하도록 하는 명령; 및상기 배터리 팩의 상태를 정상 상태로 천이하도록 하는 명령을 포함하는, 배터리 시스템 관리 장치.
- 청구항 1에 있어서,상기 대기 모드로 전환하는 절차는,상기 대기 모드로 전환하는 절차에 포함된 각 동작을 수행할 때마다 상기 상위 시스템으로부터 상기 배터리 시스템 활성화 요청이 발생하였는지 체크하는 절차를 포함하는, 배터리 관리 장치.
- 청구항 2에 있어서,상기 배터리 시스템 활성화 요청이 발생하였는지 체크하는 절차는,상기 대기 모드로 전환하는 절차에 포함된 복수의 동작들 중 임계치 이상의 시간이 소요되는 동작에 대해서는 해당 동작이 수행되는 도중 상기 배터리 시스템 활성화 요청이 발생하였는지 복수 회 체크하는 것을 특징으로 하는, 배터리 관리 장치.
- 청구항 1에 있어서,상기 대기 모드로 전환하는 절차를 탈출하도록 하는 명령은,상기 대기 모드로 전환하는 절차 중 기 수행된 하나 이상의 동작에 대응하는 롤백 동작을 상기 기 수행된 하나 이상의 동작의 순서와 역순으로 수행하도록 하는 명령을 포함하는, 배터리 관리 장치.
- 청구항 1에 있어서,상기 상위 시스템은 차량 본체인, 배터리 관리 장치.
- 청구항 1에 있어서,상기 대기 모드로 전환하는 절차에 포함된 제1 동작은 상기 배터리 관리 장치 내에 포함된 하나의 디바이스를 종료시키거나 슬립 또는 오프 상태로 제어하는 동작이고, 상기 제1 동작에 대한 롤백 동작은 해당 디바이스를 동작 개시하거나 정상 또는 온 상태로 제어하는 동작인, 배터리 관리 장치.
- 배터리 시스템을 관리하는 BMS(Battery Management System)에 의해 수행되는 배터리 제어 방법으로서,일정 시간 동안 상위 시스템으로부터 상기 배터리 시스템의 사용과 관련한 요청이 없는 경우 상기 배터리 팩의 상태를 저전력 상태인 대기 모드로 전환하는 절차를 수행하는 단계;상기 대기 모드로 전환하는 절차에 포함된 복수의 동작을 수행하던 중 상기 상위 시스템으로부터 배터리 시스템 활성화 요청이 수신되는 경우 해당 요청에 대해 응답하여, 상기 대기 모드로 전환하는 절차를 탈출하는 단계; 및상기 배터리 팩의 상태를 정상 상태로 천이하는 단계를 포함하는, 배터리 제어 방법.
- 청구항 7에 있어서,상기 대기 모드로 전환하는 절차는,상기 대기 모드로 전환하는 절차에 포함된 각 동작을 수행할 때마다 상기 상위 시스템으로부터 상기 배터리 시스템 활성화 요청이 발생하였는지 체크하는 단계를 포함하는, 배터리 제어 방법.
- 청구항 8에 있어서,상기 배터리 시스템 활성화 요청이 발생하였는지 체크하는 단계는,상기 대기 모드로 전환하는 절차에 포함된 복수의 동작들 중 임계치 이상의 시간이 소요되는 동작에 대해서는 해당 동작이 수행되는 도중 상기 배터리 시스템 활성화 요청이 발생하였는지 복수 회 체크하는 단계를 포함하는, 배터리 제어 방법.
- 청구항 7에 있어서,상기 대기 모드로 전환하는 절차를 탈출하는 단계는,상기 대기 모드로 전환하는 절차 중 기 수행된 하나 이상의 동작에 대응하는 롤백 동작을 상기 기 수행된 하나 이상의 동작의 순서와 역순으로 수행하는 단계를 포함하는, 배터리 제어 방법.
- 청구항 7에 있어서,상기 상위 시스템은 차량 본체인, 배터리 제어 방법.
- 청구항 7에 있어서,상기 대기 모드로 전환하는 절차에 포함된 제1 동작은 상기 배터리 관리 장치 내에 포함된 하나의 디바이스를 종료시키거나 슬립 또는 오프 상태로 제어하는 동작이고, 상기 제1 동작에 대한 롤백 동작은 해당 디바이스를 동작 개시하거나 정상 또는 온 상태로 제어하는 동작인, 배터리 제어 방법.
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