WO2020117000A1 - 배터리 관리 장치 및 방법 - Google Patents
배터리 관리 장치 및 방법 Download PDFInfo
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- WO2020117000A1 WO2020117000A1 PCT/KR2019/017211 KR2019017211W WO2020117000A1 WO 2020117000 A1 WO2020117000 A1 WO 2020117000A1 KR 2019017211 W KR2019017211 W KR 2019017211W WO 2020117000 A1 WO2020117000 A1 WO 2020117000A1
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- H02J7/40—
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- H02J7/80—
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- 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
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- 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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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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
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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
- H01M10/44—Methods for charging or discharging
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H02J7/50—
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- H02J7/667—
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- H02J7/82—
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- 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
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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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
Definitions
- the present invention relates to an apparatus and method for monitoring the state of a battery in units of battery cells.
- the secondary battery is a battery that can be charged and discharged, and includes a conventional Ni/Cd battery, a Ni/MH battery, and all recent lithium ion batteries.
- lithium ion batteries have an advantage of much higher energy density than conventional Ni/Cd batteries, Ni/MH batteries, and the like, and lithium ion batteries can be manufactured in a compact size and light weight, and are used as power sources for mobile devices.
- the range of use of lithium-ion batteries as a power source for electric vehicles has been drawing attention as a next-generation energy storage medium.
- the secondary battery is generally used in a battery system composed of a plurality of battery packs.
- the battery packs constituting the battery system are configured by connecting a plurality of battery modules in series or in parallel, and each battery module may include a plurality of battery cells.
- status and operation are managed and controlled by a battery management system (BMS).
- the BMS includes a battery management controller (BMC) corresponding to a master and a plurality of cell management controllers (CMC) that control a plurality of battery packs, respectively.
- BMC battery management controller
- CMC cell management controllers
- the state of each battery module included in the battery pack and each of the battery cells included in the battery pack is monitored by the corresponding CMC and collected by the BMC, thereby monitoring the battery system by the BMS.
- An object of the present invention is to allow the CMC to efficiently communicate with the BMC without periodically waking up when the BMC and the CMC perform wireless communication in the existing battery management system.
- a cell management controller includes a first antenna capable of communicating with an external device using a first frequency; A second antenna capable of receiving a signal of a second frequency from an external device; A voltage generator that generates a voltage based on the signal of the second frequency received from the second antenna; A driver that receives a signal based on the voltage generated by the voltage generator as an enable signal; And a cell parameter measuring unit measuring a parameter indicating a state of the battery cell based on a control signal from the driving unit, and the driving unit transitions from a standby state to a wake-up state based on an enable signal.
- the first frequency and the second frequency may be different frequencies, or may be the same frequency.
- the signal of the second frequency may have a higher energy density than the signal of the first frequency.
- the signal of the second frequency may be a CW signal.
- the cell management controller may further include an impedance matching circuit that matches the impedance to receive a signal of the second frequency from the second antenna.
- the cell management controller may further include a discharge circuit for discharging energy accumulated in the voltage generator.
- the driving unit determines whether the battery cell is abnormal based on the parameter value of the battery cell received from the cell parameter measurement unit, and when it is determined that an abnormality has occurred in the battery cell, the battery cell is abnormal in the external device.
- a fault signal indicating the state may be transmitted at a third frequency.
- the first frequency and the third frequency may be different frequencies or may be the same frequency.
- the signal of the third frequency may have a higher energy density than the signal of the first frequency.
- the signal of the third frequency may be a CW signal.
- the fault signal can be transmitted through the first antenna.
- the cell management controller further includes a power supply circuit that supplies power to the driving unit, and the power supply circuit applies an enable signal to the driving unit when a voltage generated by the voltage generation unit is input, and the driving unit is a power supply circuit. It may transition to the wake-up state based on the enable signal applied from.
- the cell management controller further includes a power supply circuit that supplies power to the driving unit, the power supply circuit supplies power to the driving unit at all times, and the driving unit receives voltage generated by the voltage generation unit as an enable signal. Can be.
- a battery management controller includes a first antenna capable of communicating with an external device using a first frequency and a second frequency; And generating a wake-up signal for transitioning the external device from the standby state to the wake-up state as a signal of the second frequency, transmitting the signal to the external device through the first antenna, and performing data transmission and reception with the external device at the first frequency.
- the control unit includes, the control unit generates a signal of the first frequency and the signal of the second frequency so that the energy density of the signal of the second frequency is greater than the energy density of the signal of the first frequency.
- the battery management controller further includes a second antenna capable of receiving a signal of a third frequency from an external device, and the control unit monitors when the signal of the third frequency is received from a second antenna. It can be determined that an abnormality has occurred in the battery cell.
- the control unit when detecting that a signal having a third frequency having a predetermined energy or higher is received from the second antenna, the control unit may determine that an abnormality has occurred in the battery cell monitored by the external device.
- the battery management controller includes: an impedance matching circuit that matches impedances so that signals of a third frequency can be received from the second antenna; And it may further include a discharge circuit for discharging the energy accumulated by the signal received through the impedance matching circuit.
- Battery management system a plurality of cell management controller for monitoring the state of the battery cell; And a battery management controller that communicates with the cell management controller to receive parameter values measured for the battery cells from the cell management controller, and each of the plurality of cell management controllers can communicate with the battery management controller using a first frequency.
- a first antenna configured to receive, a second antenna configured to receive a signal of a second frequency from the battery management controller, and a voltage generator configured to generate a voltage based on the signal of the second frequency received from the second antenna,
- a driving unit configured to receive a signal based on the voltage generated by the voltage generating unit as an enable signal, and a cell parameter measuring unit configured to measure a parameter indicating a state of the battery cell based on a control signal from the driving unit, and an enable signal Based on this, the driving unit transitions from the standby state to the wake-up state.
- the driving unit determines whether the battery cell is abnormal based on the parameter value of the battery cell received from the cell parameter measurement unit, and when it is determined that an abnormality has occurred in the battery cell,
- the fault signal indicating the abnormal state of the battery cell is transmitted to the battery management controller at a preset third frequency, and the plurality of cell management controllers may have different preset frequencies.
- the battery management controller may scan a frequency range including different third frequencies where a plurality of cell management controllers transmit a fault signal to receive a fault signal from the plurality of cell management controllers.
- the standby power of the CMC can be implemented close to “0”, thereby reducing battery current consumption to prevent battery discharge.
- a fault signal can be transmitted to the BMC without adding an RF module.
- a fault signal can be transmitted immediately.
- FIG. 1 is a simplified configuration diagram of a cell management controller according to an embodiment of the present invention.
- FIG. 2 is a simplified flowchart of a method for monitoring a battery condition according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of a cell management controller and a battery management controller according to an embodiment of the present invention.
- FIG. 4 shows an implementation of a multi-stage rectifying circuit in one or another embodiment of the present invention.
- FIG. 5 is a simplified configuration diagram of a cell management controller according to another embodiment of the present invention.
- FIG. 6 is a simplified flowchart of a battery condition monitoring method according to another embodiment of the present invention.
- FIG. 7 is a schematic diagram of a cell management controller and a battery management controller according to another embodiment of the present invention.
- BMC battery management controller
- CMC cell management
- the CMC continuously wakes up or periodically wakes up to receive a wake up signal received from the BMC and continuously consumes current. Due to the continuous current consumption of the CMC, unnecessary current is consumed, which may cause discharge of the battery in the future.
- FIG. 1 is a simplified configuration diagram of a cell management controller 100 according to an embodiment of the present invention.
- the cell management controller 100 includes a second antenna 102, an impedance matching circuit 104, a voltage generation unit 106, a power supply circuit 108, a cell parameter measurement unit 110, a driver 112, and an RF module ( 114) and the first antenna 116.
- the type of the battery is not particularly limited, and for example, the battery may be composed of a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, or the like.
- the battery is formed of a battery module in which a plurality of battery cells are connected in series and/or in parallel, and a battery pack is formed by connecting a plurality of battery modules in series and/or in parallel.
- the battery can include one or more battery packs.
- the second antenna 102 receives an RF signal having a second frequency from an external device, for example, BMC.
- the first antenna 116 may receive a RF signal having a first frequency from an external device to perform general communication.
- the RF signal received from the second antenna 102 is impedance matched through the impedance matching circuit 104. That is, the impedance matching circuit 104 selects an RF signal having a second frequency that is a pre-matched frequency among the received RF signals, and transmits the RF signal to the voltage generator 106.
- the RF signal received from the external device at the second antenna 102 is transmitted to the voltage generator 106.
- the voltage generator 106 receiving the RF signal from the second antenna 102 generates a voltage using the received RF signal. That is, the voltage generator 106 generates a voltage based on the RF signal having the second frequency received from the second antenna 102.
- the RF signal having the second frequency received from the second antenna 102 has a higher energy density than the RF signal having the first frequency exchanged to communicate with the BMC at the first antenna 116. This is because a voltage that can be used as an enable signal to be described later must be generated based on the RF signal having the second frequency.
- the RF signal having the second frequency may be a signal that does not contain data. That is, the RF signal having the second frequency may be an unmodulated signal.
- the RF signal having the second frequency may be a CW (Continuous Wave) signal. That is, the RF signal having the second frequency may simply be a signal for transmitting energy of a predetermined energy density or more to the cell management controller 100.
- the voltage generator 106 may be, for example, a multi-stage rectifying circuit. However, since it is difficult to generate a voltage sufficient to shift the driving unit 112 to a wake-up state with the received RF signal, it is possible to implement multiple stages up to a required voltage for forming a high voltage. That is, the multi-stage rectifying circuit may be adjusted in number of stages according to the voltage to be generated from the RF signal having the second frequency.
- the voltage generator 106 may include a plurality of diodes and a plurality of capacitors to form a multi-stage rectification circuit.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the driver 112 senses it and enables it. That is, the driver 112 receives a signal based on the voltage generated by the voltage generator as an enable signal. At this time, the driving unit 112 receives the power from the power supply circuit 108.
- the driver 112 may be, for example, a microcontroller unit (MCU) that controls each configuration in the cell management controller 100.
- MCU is a non-memory semiconductor (system semiconductor) that is used in most electronic products and serves as a core chip that serves as a brain for electronic products, and controls various characteristics of products from simple time reservation to special functions.
- the enable driver 112 receives the enable signal from the power supply circuit 108 and enables the RF module 114.
- the cell parameter measurement unit 110 is connected to the battery, and measures a parameter indicating the state of the battery cell based on the control signal received from the driver 112.
- the parameter indicating the state of the battery cell may be at least one of voltage or temperature.
- the cell parameter measurement unit 110 is shown as one in the figure, the cell voltage measurement unit and the cell temperature measurement unit may also be configured in separate configurations.
- the voltage and temperature data of the cell measured by the cell parameter measurement unit 110 are transmitted to the driving unit 112.
- the driver 112 determines whether the battery cell is abnormal. That is, the driver 112 receiving the data on the voltage and temperature of the cell from the cell parameter measurement unit 110 determines whether the measured voltage and temperature of the cell are within the range of the normal operation of the cell. For example, if the measured voltage of the cell is greater than the first threshold or less than the second threshold, the driver 112 determines that there is a problem with the state of the cell. When the driver 112 determines that the state of the cell is a problem, the RF module 114 generates a fault signal of a preset frequency.
- the driver 112 determines that there is a problem with the cell state. If the driver 112 determines that there is a problem with the state of the cell, the RF module 114 causes the fault signal to be generated. That is, when it is determined that an abnormality has occurred in the battery cell, a fault signal indicating the abnormal state of the battery cell is transmitted to an external device at a third frequency different from the first frequency.
- the signal transmitted at the third frequency has a higher energy density than the RF signal having the first frequency exchanged to communicate with the BMC.
- the fault signal which is an RF signal having a third frequency, may be a signal that does not contain data. That is, the RF signal having the third frequency may be an unmodulated signal.
- the RF signal having a third frequency may be a CW (Continuous Wave) signal. That is, the fault signal may simply be a signal for transmitting energy above a predetermined energy density to the BMC.
- the driving unit 112 and the cell parameter measurement unit 110 are described as having separate configurations, but these are exemplary and they may be implemented as one integrated configuration.
- the RF module 114 enables the driver 112 when the driver 112 receives an enable signal based on the voltage generated by the voltage generator 106. In addition, when the driver 112 determines that there is a problem with the state of the cell and receives a fault signal generation signal from the driver 112, the RF module 114 generates a fault signal having a third frequency to generate a first antenna ( 116).
- the first antenna 116 receives a fault signal from the RF module 114.
- the first antenna 116 receiving the fault signal from the RF module 114 transmits a fault signal to an external device, for example, BMC. That is, the fault signal is transmitted through the first antenna.
- the first antenna 116 is also an antenna for general communication with the BMC, in addition to transmitting a fault signal to the BMC.
- it may further include a discharge circuit for discharging the energy accumulated in the multi-stage rectification circuit, the voltage generator 106.
- a predetermined energy may be accumulated in the multi-stage rectifying circuit due to noise or signals other than the signal of the second frequency. When the accumulated energy reaches a certain level or more, even if the RF signal of the second frequency is not received, a problem may occur in which the voltage generator 106 generates a voltage and the driver 112 is enabled. Therefore, it is necessary to discharge the energy accumulated in the multi-stage rectifying circuit periodically or when a predetermined condition is satisfied (for example, when the accumulated energy is greater than or equal to a reference value).
- FIG. 2 is a simplified flowchart of a method for monitoring a battery condition according to an embodiment of the present invention.
- the cell management controller 100 waits while consuming only the standby power close to “0” because the MCU consumes only the power required for latching until the RF signal is received from the BMC. That is, since the cell management controller 100 operates after receiving the RF signal, it is not necessary to periodically wake up before receiving the RF signal.
- the cell management controller 100 is in a standby state, and the second antenna 102 receives an RF signal having a second frequency from an external device, for example, BMC (S200).
- the impedance matching circuit 104 selects an RF signal having a pre-matched frequency from among the RF signals received from the second antenna 102 and transmits it to the voltage generator 106.
- the RF signal received from the BMC at the second antenna 102 is transmitted to the voltage generator 106.
- the voltage generator 106 receiving the RF signal from the second antenna 102 generates a voltage for transmitting the enable signal to the driver 112 (S202).
- the voltage generator 106 may be, for example, a rectifying circuit. However, since the rectifying circuit constituting the voltage generator 106 generates an enable signal to the driver 112 using the received RF signal, it is difficult to generate a voltage sufficient to transmit the signal, so that the voltage required to form a high voltage is increased. It can be implemented in multiple stages.
- the voltage generator 106 may include a plurality of diodes and a plurality of capacitors to form a multi-stage rectification circuit.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the driver 112 senses it (S204). That is, the driver 112 receives an enable signal based on the voltage generated by the voltage generator 106.
- the driver 112 that senses the voltage generated by the voltage generator 106 is enabled to enable each circuit in the cell management controller 100 (S206).
- the driver 112 may be, for example, an MCU that controls each configuration in the cell management controller 100.
- the driving unit 112 enables the RF module 114.
- the power supply circuit 108 receiving the enable signal from the driving unit 112 receives current from the battery and supplies power to the RF module 114.
- the driving unit 112 receives a minimum of constant power from the power supply circuit 108.
- the cell parameter measurement unit 110 may be directly supplied with power from a battery or may be supplied from a power supply circuit 108.
- the cell parameter measuring unit receiving the cell parameter measuring signal (control signal) from the driving unit 112 measures the voltage and temperature of the cell (S208).
- the cell parameter measurement unit 110 is connected to the battery cell to measure the voltage and temperature of the battery cell.
- the cell parameter measurement unit 110 measures the voltage and temperature of the battery cell, and transmits the voltage and temperature data of the cell to the driving unit 112.
- the driver 112 receiving the voltage and temperature data of the cell measured by the cell parameter measurement unit 110 determines whether a problem has occurred in the battery cell based on the voltage and temperature data of the received cell (S210).
- the driver 112 determines that there is a problem with the state of the cell.
- the driver 112 determines that there is a problem with the cell state.
- the RF module 114 If the driver 112 determines that the state of the cell is a problem, the RF module 114 generates a fault signal and transmits the fault signal to the external device through the first antenna 116 (S212).
- the fault signal is a signal having a different frequency from the RF signal received by the second antenna.
- the fault signal is a signal having a frequency that is impedance matched in an external device.
- the driving unit 112 determines that the state of the cell is no problem, the driving is terminated and the standby mode is entered again. However, even when it is determined that there is no problem in the state of the cell, the driver 112 may enable the RF module 114 to generate a signal having a frequency different from the fault signal. This can be set in advance.
- CMC is a module that monitors/manages the status of battery cells and modules
- BMC is a module that diagnoses/estimates/manages battery status based on information transmitted from CMC.
- the CMC module connected to each battery includes a first antenna a1, a second antenna b1, an impedance matching circuit, a multi-stage rectifying circuit, an MCU, an RF module, a cell parameter measuring unit, and a power supply circuit.
- the BMC includes a first antenna a2, a second antenna b2, an MCU, an RF module, a multi-stage rectification circuit, and an impedance matching circuit.
- CMC and BMC may further include a discharge circuit for discharging the energy accumulated in the multi-stage rectification circuit.
- the MCU of the BMC causes the RF module to generate an RF signal having a second frequency and transmit it to the CMC module using the first antenna a2. That is, the control unit of the BMC generates a wake-up signal for transitioning the CMC from the standby state to the wake-up state as a signal having a second frequency, transmits it to the CMC through the first antenna a2, and transmits and receives general data to and from the CMC. It is performed with an RF signal having a first frequency.
- the RF signal transmitted through the first antenna (a2) of the CMC is received from the second antenna (b1) and frequency-matched by an impedance matching circuit and transmitted to the MCU.
- the signal having the second frequency is not a signal for CMC and BMC to perform data communication. Since the signal having the second frequency only needs to transition from the standby state to the wake-up state, there is no need to include a command or data in the signal. Instead, it is necessary to have a predetermined energy density because the MCU must generate an enable signal that can transition to a wake-up state using a signal having a second frequency. That is, the energy density of the signal having the second frequency must be greater than the energy density of the signal having the first frequency used when the CMC and the BMC communicate. In other words, a signal having a second frequency is a primary purpose of transmitting energy, not transmitting data.
- the multi-stage rectifying circuit When the second antenna b1 receives the RF signal from the first antenna a2, the multi-stage rectifying circuit generates a voltage.
- the rectifying circuit can be configured in multiple stages up to a required voltage for forming a high voltage because it is difficult to generate a voltage sufficient to transition the MCU to a wake-up state with the received RF signal.
- the multi-stage rectification circuit may include a plurality of diodes and a plurality of capacitors.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the RF signal is received from the rectifying multi-stage circuit to generate a voltage to transmit an enable signal to the MCU, and the MCU detects this signal and is enabled.
- the MCU receives minimal power from the power supply circuit and waits for the enable signal. Enabled MCUs enable each circuit.
- the MCU enables the RF module.
- the power supply circuit that receives the enable signal from the MCU is enabled and receives current from the battery to supply power to the MCU and RF module.
- the cell parameter measurement unit is connected to the battery and measures the voltage and temperature of the connected battery. Although the cell parameter measurement unit is shown as one in the figure, the cell voltage measurement unit and the cell temperature measurement unit may be configured in separate configurations. The voltage and temperature of the cell measured by the cell parameter measurement unit are transmitted to the MCU.
- the MCU Upon receiving data on the voltage and temperature of the cell from the cell parameter measurement unit, the MCU determines whether the measured voltage and temperature of the cell are within the range of the normal operation of the cell. For example, if the measured cell voltage is greater than the first threshold or less than the second threshold, the MCU determines that there is a problem with the state of the cell. If the MCU determines that the state of the cell is a problem, it causes the RF module to generate a fault signal. Also, for example, if the measured cell temperature is greater than the third threshold, the MCU determines that there is a problem with the cell state. If the MCU determines that there is a problem with the state of the cell, it causes the RF module to generate a fault signal.
- the RF module is enabled by receiving an enable signal from the MCU when the MCU detects the voltage generated by the multi-stage rectification circuit and is enabled. In addition, when the MCU determines that there is a problem with the state of the cell and receives a fault signal generation signal from the MCU, the RF module generates a fault signal and transmits it to the first antenna a1. The fault signal has a different frequency from the RF signal received at the second antenna b1.
- the first antenna a1 receives a fault signal from the RF module.
- the first antenna a1 which has received the fault signal from the RF module, transmits the fault signal to the BMC.
- the fault signal has a third frequency different from the first frequency and the second frequency.
- the signal having the third frequency is not a signal carrying data.
- the signal having the third frequency only needs to notify the BMC that an error has occurred in the battery cell. Therefore, there is no need to include instructions or data in the signal. Instead, it should be possible to detect that a signal having a third frequency has been received by the BMC, so it is necessary to have a predetermined energy density.
- the energy density of the signal having the third frequency should be greater than the energy density of the signal having the first frequency used when the CMC and the BMC communicate.
- the main purpose of transmitting a signal having a third frequency is to notify that a specific event has occurred through the transmission of energy.
- the fault signal transmitted from the CMC is received at the second antenna b2 of the BMC.
- the frequency of the fault signal is preset, and is a signal matched by the impedance matching circuit of the BMC, and is received by the second antenna b2.
- the fault signal received through the second antenna b2 of the BMC can be detected by the MCU of the BMC to determine that a problem has occurred in the battery cell monitored by the corresponding CMC. That is, when the control unit of the BMC receives the signal having the third frequency from the second antenna b2, it determines that an abnormality has occurred in the battery cell monitored by the CMC.
- the first antenna a1 receives a fault signal from the RF module.
- the first antenna a1 which has received the fault signal from the RF module, transmits a fault signal to the BMC.
- the first antenna a1 of the CMC is used as a communication path for performing general communication using an RF signal having a first frequency with the first antenna a2 of the BMC. Then, the first antenna a1 of the CMC transmits a fault signal having a third frequency to the second antenna b2 of the BMC. Further, the second antenna b1 of the CMC receives a wake-up signal from the first antenna a2 of the BMC.
- FIG. 4 shows an implementation of a multi-stage rectifying circuit according to an embodiment of the present invention.
- a multi-stage rectifying circuit that generates a voltage by receiving an RF signal can be implemented in multiple stages up to a required voltage for forming a high voltage.
- the multi-stage rectification circuit includes a plurality of diodes and a plurality of capacitors. One end of the capacitor is connected in parallel to the input terminal to which the RF signal is input, and one end of the diode connected in parallel is connected to the other end of each capacitor. A capacitor is further connected to the other end of one of the diodes connected in parallel to the other end of each capacitor. In addition, a voltage is output from the other end of the diode connected to the other end of the capacitor connected to the far end of the capacitor connected in parallel to the input terminal to which the RF signal is input.
- It may be implemented in multiple stages according to the number of capacitors connected in parallel to the input unit, and may be implemented by adjusting the number of multiple stages according to a desired voltage level.
- the diode included in the multi-stage rectification circuit may be an RF diode having a small threshold voltage and a fast state transition rate for fast rectification and high voltage formation.
- multi-stage rectification circuit illustrated in FIG. 4 is only an example, and other known multi-stage rectification circuits may be applied.
- the CMC and BMC according to FIGS. 1 to 4 may operate in different ways with respect to the first to third frequencies.
- another operation method based on the CMC and BMC configuration of FIG. 3 will be described.
- the frequencies of the first frequency signal and the second frequency signal may be the same.
- Signals used to transmit data or send commands have low energy density, making it difficult to generate the voltage required for circuit components to operate. Therefore, in order to generate the voltage used for the enable signal in order to transition the MCU of the CMC to the wake-up state, the RF signal must have a predetermined energy density. Therefore, instead of different frequencies of the first frequency signal and the second frequency signal, the energy density of each signal may be different to be divided into a signal for communication and a signal for wakeup.
- frequencies of the first frequency signal and the third frequency signal may be the same.
- the third frequency signal is a fault signal and does not need to transmit data, and it is only necessary for the BMC to know that the third frequency signal has been received. That is, a predetermined energy need only be transferred from CMC to BMC. Therefore, as in the case of the second frequency signal, the third frequency signal may be distinguished between a signal for communication and a fault signal by varying the energy density of each signal instead of different frequencies.
- the BMC needs only one RF module, thereby saving cost and installation space. Also, if the frequencies of the first frequency signal and the third frequency signal are the same, the CMC only needs to have one RF module, thereby saving cost and installation space.
- FIG. 5 is a simplified configuration diagram of a cell management controller according to another embodiment of the present invention.
- the cell management controller 100 includes a second antenna 102, an impedance matching circuit 104, a voltage generation unit 106, a power supply circuit 108, a cell parameter measurement unit 110, a driver 112, and an RF module ( 114) and a first antenna 116.
- the type of the battery is not particularly limited, and for example, the battery may be composed of a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, or the like.
- the battery is formed of a battery module in which a plurality of battery cells are connected in series and/or in parallel, and a battery pack connected in series and/or in parallel with a plurality of battery modules is formed.
- the battery can include one or more battery packs.
- the second antenna 102 receives an RF signal having a second frequency from an external device, for example, BMC.
- an RF signal having a frequency matched by the impedance matching circuit 104 is transmitted to the voltage generator 108. That is, the impedance matching circuit 104 selects an RF signal having a second frequency that is previously matched among RF signals received through the second antenna 102 and transmits the RF signal to the voltage generator 108.
- the voltage generator 106 receiving the RF signal from the second antenna 102 generates a voltage using the received RF signal. That is, the voltage generator 106 generates a voltage based on the RF signal having the second frequency received from the second antenna 102.
- the RF signal having the second frequency received from the second antenna 102 has a higher energy density than the RF signal having the first frequency exchanged to communicate with the BMC at the first antenna 116.
- the RF signal having the second frequency may be a signal that does not contain data. That is, the RF signal having the second frequency may be an unmodulated signal.
- the RF signal having the second frequency may be a CW (Continuous Wave) signal. That is, the RF signal having the second frequency may simply be a signal for transmitting energy of a predetermined energy density or more to the cell management controller 100.
- the voltage generator 106 may be, for example, a multi-stage rectifying circuit. However, since it is difficult to generate a voltage sufficient to shift the driving unit 112 to a wake-up state with the received RF signal, it may be implemented in multiple stages up to a required voltage for forming a high voltage. That is, the multi-stage rectifying circuit may be adjusted in number of stages according to the voltage to be generated from the RF signal having the second frequency.
- the voltage generator 106 may include a plurality of diodes and a plurality of capacitors to form a multi-stage rectification circuit.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the power circuit 108 senses it and enables it. That is, the voltage generated by the voltage generation unit 106 becomes an enable signal for enabling the power supply circuit 108.
- the power supply circuit applies an enable signal to the driver 112 when the voltage generated by the voltage generator is input.
- the enabled power circuit 108 enables each circuit.
- the power supply circuit 108 is enabled to supply power to each circuit configuration, the driver 112, and the RF module 114 in the cell management controller 100.
- the driver 112 supplied with power from the power supply circuit 108 transitions to a wake-up state based on an enable signal applied from the power supply circuit 108.
- the wake-up driver 112 transmits a control signal to the cell parameter measurement unit 110 to measure the voltage or temperature of the cell.
- the cell parameter measurement unit 110 is connected to the battery, and measures a parameter indicating the state of the battery cell based on the control signal received from the driver 112.
- the parameter indicating the state of the battery cell may be at least one of voltage or temperature.
- the cell parameter measurement unit 110 is shown as one in the figure, the cell voltage measurement unit and the cell temperature measurement unit may be configured in separate configurations. The voltage and temperature data of the cell measured by the cell parameter measurement unit 110 are transmitted to the driving unit 112.
- the driver 112 determines whether the battery cell is abnormal. That is, the driver 112 receiving the data on the voltage and temperature of the cell from the cell parameter measurement unit 110 determines whether the measured voltage and temperature of the cell are within the range of the normal operation of the cell. For example, if the measured voltage of the cell is greater than the first threshold or less than the second threshold, the driver 112 determines that there is a problem with the state of the cell. When the driver 112 determines that the state of the cell is a problem, the RF module 114 generates a fault signal. Further, for example, when the measured cell temperature is greater than the third threshold, the driver 112 determines that there is a problem with the cell state.
- the RF module 114 When the driver 112 determines that there is a problem with the state of the cell, the RF module 114 generates a fault signal. That is, when it is determined that an abnormality has occurred in the battery cell, a fault signal indicating an abnormal state of the battery cell is transmitted to an external device at a third frequency different from the first frequency.
- the signal transmitted at the third frequency, as well as the signal at the second frequency, has a higher energy density than the RF signal having the first frequency exchanged to communicate with the BMC.
- the fault signal which is an RF signal having a third frequency, may be a signal that does not contain data. That is, the RF signal having the third frequency may be an unmodulated signal.
- the RF signal having a third frequency may be a CW (Continuous Wave) signal. That is, the fault signal may simply be a signal for transmitting energy above a predetermined energy density to the BMC.
- the RF module 114 is powered from the power circuit 108 and is enabled by the driver 112. In addition, when the driver 112 determines that there is a problem with the state of the cell and receives a fault signal generating signal from the driver 112, the RF module 114 generates a fault signal having a third frequency to generate a first antenna ( 116).
- the first antenna 116 receives a fault signal from the RF module 114.
- the first antenna 116 receiving the fault signal from the RF module 114 transmits a fault signal to an external device, for example, BMC.
- the first antenna 116 is also an antenna for general communication with the BMC, in addition to transmitting a fault signal to the BMC.
- a discharge circuit for discharging energy accumulated in the multi-stage rectification circuit may be further included.
- the discharge circuit discharges the energy accumulated in the multi-stage rectifying circuit periodically or when a predetermined condition is satisfied (for example, when the accumulated energy is greater than or equal to a reference value).
- FIG. 6 is a simplified flowchart of a battery condition monitoring method according to another embodiment of the present invention.
- the cell management controller 100 Since the cell management controller 100 operates after receiving the RF signal through the second antenna b1, it is not necessary to periodically wake up to receive the signal from the BMC before receiving the RF signal.
- the cell management controller 100 is in a standby state, and the second antenna 102 receives an RF signal from an external device, for example, BMC (S500).
- the RF signal received from the BMC at the second antenna 102 is transmitted to the voltage generator 106.
- the voltage generator 106 receiving the RF signal from the second antenna 102 generates a voltage for transitioning the power supply circuit 108 to a wake-up state (S502).
- an enable signal is applied to the power supply circuit 108 based on the generated voltage.
- the voltage generator 106 may be, for example, a multi-stage rectifying circuit. However, since it is difficult to generate a voltage sufficient to transition the power supply circuit 108 to a wake-up state with the received RF signal, it is possible to implement multiple steps up to a required voltage for forming a high voltage.
- the voltage generator 106 may include a plurality of diodes and a plurality of capacitors to form a multi-stage rectification circuit.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the power supply circuit 108 When the voltage generation unit 106 receives the RF signal and generates a voltage, the power supply circuit 108 receives it and enables it (S504). The power supply circuit 108 enabled by the voltage generated by the voltage generation unit 106 is enabled while supplying power to each circuit in the cell management controller 100 (S506).
- the driver 112 may be, for example, an MCU that controls each configuration in the cell management controller 100.
- the driver 112 Upon receiving the enable signal, the driver 112 transitioned to the wake-up state transmits a cell voltage and temperature measurement signal (control signal) to the parameter measurement unit 110 to measure the cell voltage and temperature (S508).
- the cell parameter measuring unit driven by the driving unit 112 measures the voltage and temperature of the cell (S510).
- the cell parameter measurement unit 110 is connected to the battery cell to measure the voltage and temperature of the battery cell.
- the cell parameter measuring unit 110 measures the voltage and temperature of the battery cell, and transmits the voltage and temperature data to the driving unit 112.
- the driver 112 receiving the voltage and temperature data of the cell measured by the cell parameter measuring unit 110 determines whether a problem has occurred in the battery cell based on the voltage and temperature data of the received cell (S512).
- the driver 112 determines that there is a problem with the state of the cell.
- the driver 112 determines that there is a problem with the cell state.
- the RF module 114 When the driver 112 determines that the state of the cell is a problem, the RF module 114 generates a fault signal having a third frequency and transmits the fault signal to the external device through the first antenna 116. (S514).
- This fault signal is a signal that is impedance matched in advance in an external device, for example, BMC.
- the driver 112 determines that there is no problem in the state of the cell, the driving is terminated and the device enters the standby mode again. However, even when it is determined that there is no problem in the state of the cell, the driver 112 may enable the RF module 114 to generate a signal having a frequency different from the fault signal. This can be set in advance.
- FIG. 7 is a schematic diagram of a CMC and a BMC according to another embodiment of the present invention.
- the CMC module connected to each battery includes a first antenna a1, a second antenna b1, an impedance matching circuit, a multi-stage rectifying circuit, an MCU, an RF module, a cell parameter measuring unit, and a power supply circuit.
- the BMC includes a first antenna a2, a second antenna b2, an MCU, an RF module, a multi-stage rectification circuit, and an impedance matching circuit.
- CMC and BMC may further include a discharge circuit for discharging the energy accumulated in the multi-stage rectification circuit.
- the MCU of the BMC causes the RF module to generate an RF signal having a second frequency and transmit it to the CMC module using the first antenna a2. That is, the controller of the BMC generates a wake-up signal for transitioning the CMC from the standby state to the wake-up state as a signal having a second frequency, transmits it to the CMC through the first antenna a2, and transmits and receives data to and from the CMC. It is to be performed with an RF signal having 1 frequency.
- the RF signal has a predetermined frequency.
- the RF signal transmitted through the first antenna (a2) of the CMC is received from the second antenna (b1), and the frequency matching signal is selected from the impedance matching circuit and transmitted to the multi-stage rectifying circuit.
- the signal having the second frequency is not a signal for data communication between CMC and BMC. Since the signal having the second frequency only needs to transition from the standby state to the wake-up state, there is no need to include a command or data in the signal. Instead, it is necessary to have a predetermined energy density because the power circuit must generate an enable signal that can transition to a wake-up state using a signal having a second frequency. That is, the energy density of the signal having the second frequency must be greater than the energy density of the signal having the first frequency used when the CMC and the BMC communicate. In other words, a signal having a second frequency is a primary purpose of transmitting energy, not transmitting data.
- the multi-stage rectifying circuit When the second antenna b1 receives the RF signal from the first antenna a2, the multi-stage rectifying circuit generates a voltage. Since the rectifying circuit is difficult to generate a voltage sufficient to wake up the power supply circuit with the received RF signal, it can be configured in multiple stages up to a required voltage to form a high voltage.
- the multi-stage rectification circuit may include a plurality of diodes and a plurality of capacitors.
- the diode may be, for example, an RF diode having a small threshold voltage (Vf) and a fast state transition rate for rapid rectification and high voltage formation.
- the power circuit When a voltage is generated by receiving an RF signal from a rectifying multi-stage circuit, the power circuit senses it as an enable signal (or receives the generated voltage) and is enabled to supply power to each circuit. That is, the power supply circuit enables the component MCU and RF module of each circuit.
- the MCU that receives the enable signal from the power supply circuit causes the cell parameter measurement unit to measure the voltage and temperature of the cell.
- the cell parameter measurement unit is connected to the battery and measures the voltage and temperature of the connected battery. Although the cell parameter measurement unit is shown as one in the figure, the cell voltage measurement unit and the cell temperature measurement unit may be configured in separate configurations. The voltage and temperature of the cell measured by the cell parameter measurement unit are transmitted to the MCU.
- the MCU Upon receiving data on the voltage and temperature of the cell from the cell parameter measurement unit, the MCU determines whether the measured voltage and temperature of the cell are within the range of the normal operation of the cell. For example, if the measured cell voltage is greater than the first threshold or less than the second threshold, the MCU determines that there is a problem with the state of the cell. If the MCU determines that the state of the cell is a problem, it causes the RF module to generate a fault signal. Also, for example, if the measured cell temperature is greater than the third threshold, the MCU determines that there is a problem with the cell state. If the MCU determines that there is a problem with the state of the cell, it causes the RF module to generate a fault signal.
- the RF module is enabled when the MCU receives an enable signal from the power supply circuit and sends an enable signal back to the RF module.
- the RF module determines that there is a problem with the state of the cell and receives a fault signal generation signal from the MCU, the RF module generates a fault signal having a third frequency and transmits it to the first antenna a1.
- the first antenna a1 receives a fault signal from the RF module.
- the first antenna a1 which has received the fault signal from the RF module, transmits the fault signal to the BMC.
- the signal having the third frequency is not a signal carrying data.
- the signal having the third frequency only needs to notify the BMC that an error has occurred in the battery cell. Therefore, there is no need to include instructions or data in the signal. Instead, it should be possible to detect that a signal having a third frequency has been received by the BMC, so it is necessary to have a predetermined energy density. That is, the energy density of the signal having the third frequency should be greater than the energy density of the signal having the first frequency used when the CMC and the BMC communicate. In other words, the main purpose of transmitting a signal having a third frequency is to notify that a specific event has occurred through the transmission of energy.
- the fault signal transmitted from the CMC is received from the second antenna b2 of the BMC.
- the frequency of the fault signal is preset, and is a signal matched by the impedance matching circuit of the BMC, and is received by the second antenna b2.
- the fault signal received through the second antenna b2 of the BMC can be detected by the MCU of the BMC to determine that a problem has occurred in the battery cell monitored by the corresponding CMC. That is, when the control unit of the BMC receives the signal having the third frequency from the second antenna b2, it determines that an abnormality has occurred in the battery cell monitored by the CMC. Since the fault signal is for the purpose of notification of event detection through energy transfer, the BMC's MCU monitors the CMC when it detects that the second antenna b2 receives a signal of a third frequency having an energy above a predetermined reference. It can be determined that an abnormality has occurred in the battery cell.
- the first antenna a1 of the CMC is used as a communication path for performing general communication using an RF signal having a first frequency with the first antenna a2 of the BMC. Then, the first antenna a1 of the CMC transmits a fault signal having a third frequency to the second antenna b2 of the BMC. In addition, the second antenna b1 of the CMC receives the RF signal, which is a wake-up signal, from the second antenna b2 of the BMC.
- the CMC and BMC according to FIGS. 5 to 7 can operate even when the first to third frequencies are the same frequency. That is, when the first to third frequencies are the same frequency, the signals of the second frequency and the signals of the third frequency may achieve the object of the present invention by varying the energy density.
- the following modification may be considered when the BMC manages a plurality of CMCs.
- Each of the plurality of CMCs has the same configuration. However, when the CMC detects that an abnormality has occurred in the battery cell it monitors, the frequency of the fault signal transmitted to the BMC is set differently. That is, the third frequency in the signal of the third frequency for the transmission of the fault signal is different for each CMC.
- the BMC in addition to performing communication on a first frequency with a plurality of CMCs, the BMC should monitor which of the plurality of CMCs a fault signal is received from. That is, since it is not known which fault signal is transmitted from which CMC, all target frequencies need to be scanned. Accordingly, the MCU of the CMC scans a frequency range including different third frequencies where a plurality of CMCs transmit a fault signal, such as by adjusting the impedance of the impedance matching circuit.
- the BMC can immediately identify which CMC has an abnormality. That is, since the BMC can grasp the frequency at which the fault signal has been received, the BMC can identify the CMC that has transmitted the fault signal even if the fault signal does not include other information.
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Abstract
Description
Claims (16)
- 외부 장치와 제1 주파수를 이용하여 통신 가능한 제1 안테나;상기 외부 장치로부터의 제2 주파수의 신호를 수신 가능한 제2 안테나;상기 제2 안테나에서 수신된 상기 제2 주파수의 신호에 기초하여 전압을 생성하는 전압 생성부;상기 전압 생성부에서 생성된 전압에 기초한 신호를 인에이블 신호로서 인가받는 구동부; 및상기 구동부로부터의 제어신호에 기초하여 배터리 셀의 상태를 나타내는 파라미터를 측정하는 셀 파라미터 측정부;를 포함하며,상기 인에이블 신호에 기초하여 상기 구동부가 대기 상태에서 웨이크업 상태로 천이하는 셀 관리 제어기.
- 청구항 1에 있어서,상기 제2 주파수의 신호는 상기 제1 주파수의 신호보다 에너지 밀도가 더 높은 것을 특징으로 하는 셀 관리 제어기.
- 청구항 1에 있어서,상기 제2 안테나에서 상기 제2 주파수의 신호를 수신 가능하도록 임피던스를 매칭시키는 임피던스 매칭 회로를 더 포함하는 셀 관리 제어기.
- 청구항 3에 있어서,상기 전압 생성부에 축적되는 에너지를 방전시키기 위한 방전회로를 더 포함하는 셀 관리 제어기.
- 청구항 1에 있어서,상기 구동부는 상기 셀 파라미터 측정부로부터 수신한 상기 배터리 셀의 파라미터 값에 기초하여 상기 배터리 셀의 이상 여부를 판단하고,상기 배터리 셀에 이상이 발생하였다고 판단된 경우, 상기 외부 장치에 상기 배터리 셀의 이상 상태를 나타내는 폴트 신호를 제3 주파수로 전송하는 것을 특징으로 하는, 셀 관리 제어기.
- 청구항 5에 있어서,상기 제3 주파수의 신호는 상기 제1 주파수의 신호보다 에너지 밀도가 더 높은 것을 특징으로 하는 셀 관리 제어기.
- 청구항 5에 있어서,상기 폴트 신호는 상기 제1 안테나를 통하여 전송되는 것을 특징으로 하는, 셀 관리 제어기.
- 청구항 1에 있어서,상기 구동부로 전력을 공급하는 전원 회로를 더 포함하고,상기 전원 회로는 상기 전압 생성부에서 생성된 전압이 입력될 때 상기 구동부에 인에이블 신호를 인가하고,상기 구동부는 상기 전원 회로로부터 인가되는 상기 인에이블 신호에 기초하여 웨이크업 상태로 천이하는 것을 특징으로 하는 셀 관리 제어기.
- 청구항 1에 있어서,상기 구동부로 전력을 공급하는 전원 회로를 더 포함하고,상기 전원 회로는 상기 구동부에 전력을 상시 공급하며,상기 구동부는 상기 전압 생성부에서 생성된 상기 전압을 상기 인에이블 신호로서 인가받는 것을 특징으로 하는 셀 관리 제어기.
- 외부 장치와 제1 주파수 및 제2 주파수를 이용하여 통신 가능한 제1 안테나; 및상기 외부 장치를 대기 상태에서 웨이크업 상태로 천이시키기 위한 웨이크업 신호를 상기 제2 주파수의 신호로서 생성하여 상기 제1 안테나를 통하여 상기 외부 장치로 전송하고, 상기 외부 장치와의 데이터 송수신을 상기 제1 주파수로 수행하는 제어부;를 포함하며,상기 제어부는 상기 제2 주파수의 신호의 에너지 밀도가 상기 제1 주파수의 신호의 에너지 밀도보다 크도록 상기 제1 주파수의 신호 및 제2 주파수의 신호를 생성하는 배터리 관리 제어기.
- 청구항 10에 있어서,상기 외부 장치로부터 제3 주파수의 신호를 수신 가능한 제2 안테나를 더 포함하고,상기 제어부는 상기 제2 안테나로부터 상기 제3 주파수의 신호를 수신하였을 때, 상기 외부 장치가 모니터링하는 배터리 셀에 이상이 발생하였다고 판단하는 배터리 관리 제어기.
- 청구항 11에 있어서,상기 제어부는 상기 제2 안테나로부터 미리 설정된 기준 이상의 에너지를 갖는 제3 주파수의 신호를 수신하는 것을 검출하는 경우, 상기 외부 장치가 모니터링하는 배터리 셀에 이상이 발생하였다고 판단하는 배터리 관리 제어기.
- 청구항 11에 있어서,상기 제2 안테나에서 상기 제3 주파수의 신호를 수신 가능하도록 임피던스를 매칭시키는 임피던스 매칭 회로; 및상기 임피던스 매칭 회로를 통하여 수신되는 신호에 의하여 축적되는 에너지를 방전시키기 위한 방전회로를 더 포함하는 배터리 관리 제어기.
- 배터리 셀의 상태를 모니터링 하는 복수의 셀 관리 제어기; 및상기 셀 관리 제어기와 통신하여 상기 셀 관리 제어기로부터 상기 배터리 셀에 대하여 측정한 파라미터값을 수신하는 배터리 관리 제어기;를 포함하며,상기 복수의 셀 관리 제어기 각각은,상기 배터리 관리 제어기와 제1 주파수를 이용하여 통신 가능하도록 구성된 제1 안테나와, 상기 배터리 관리 제어기로부터제2 주파수의 신호를 수신 가능하도록 구성된 제2 안테나와, 상기 제2 안테나에서 수신하는 상기 제2 주파수의 신호에 기초하여 전압을 생성하도록 구성된 전압 생성부와, 상기 전압 생성부에서 생성된 전압에 기초한 신호를 인에이블 신호로서 인가받도록 구성된 구동부와, 상기 구동부로부터의 제어신호에 기초하여 상기 배터리 셀의 상태를 나타내는 파라미터를 측정하도록 구성된 셀 파라미터 측정부를 포함하며,상기 인에이블 신호에 기초하여 상기 구동부가 대기 상태에서 웨이크업 상태로 천이하는, 배터리 관리 시스템.
- 청구항 14에 있어서,상기 복수의 셀 관리 제어기 각각에서,상기 구동부는 상기 셀 파라미터 측정부로부터 수신한 상기 배터리 셀의 파라미터 값에 기초하여 상기 배터리 셀의 이상 여부를 판단하고,상기 배터리 셀에 이상이 발생하였다고 판단된 경우, 상기 배터리 관리 제어기에 상기 배터리 셀의 이상 상태를 나타내는 폴트 신호를 미리 설정된 제3 주파수로 전송하며,상기 복수의 셀 관리 제어기들은 상기 미리 설정된 제3 주파수가 서로 상이한 주파수인 것을 특징으로 하는, 배터리 관리 시스템.
- 청구항 15에 있어서,상기 배터리 관리 제어기는,상기 복수의 셀 관리 제어기로부터의 폴트 신호를 수신하기 위하여 상기 복수의 셀 관리 제어기들이 폴트 신호를 송신하는 서로 상이한 제3 주파수들을 포함하는 주파수 범위를 스캐닝하는 것을 특징으로 하는 배터리 관리 시스템.
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| EP19893934.0A EP3764507B1 (en) | 2018-12-07 | 2019-12-06 | Cell management controller, battery management controller, and battery management system |
| US16/969,620 US11296514B2 (en) | 2018-12-07 | 2019-12-06 | Apparatus and method for managing battery |
| ES19893934T ES3049602T3 (en) | 2018-12-07 | 2019-12-06 | Cell management controller, battery management controller, and battery management system |
| CN201980012949.4A CN111712987B (zh) | 2018-12-07 | 2019-12-06 | 电池单元管理控制器、电池管理控制器和电池管理系统 |
| JP2020550120A JP7107487B2 (ja) | 2018-12-07 | 2019-12-06 | バッテリー管理装置及び方法 |
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| DE102020115333A1 (de) * | 2019-06-17 | 2020-12-17 | Silicon Works Co., Ltd. | Drahtloses Batterie-Verwaltungssystem, Knoten für drahtlose Kommunikation und Verfahren zur Datenübertragung |
| KR20210092488A (ko) * | 2020-01-16 | 2021-07-26 | 에스케이이노베이션 주식회사 | 배터리 관리 시스템 |
| US20250355048A1 (en) * | 2022-05-31 | 2025-11-20 | Lg Energy Solution, Ltd. | Apparatus and Method for Diagnosing Abnormality of Battery Cell |
| CN115601948B (zh) * | 2022-09-29 | 2025-11-14 | 中国第一汽车股份有限公司 | 一种锂离子电池组无线控制方法、系统和车辆 |
| TWI885837B (zh) * | 2024-04-03 | 2025-06-01 | 連恩微電子股份有限公司 | 電池系統及其電池通訊系統 |
| KR102905098B1 (ko) * | 2024-05-02 | 2025-12-31 | 주식회사 배러머신 | 배터리를 장착한 제품의 슬립동안 그 배터리의 적응적 모니터링 방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142083A (ja) * | 2008-12-15 | 2010-06-24 | Toshiba Corp | 組電池システム |
| US20140229129A1 (en) * | 2013-02-12 | 2014-08-14 | Johnson Controls Technology Company | Battery monitoring network |
| US20160294019A1 (en) * | 2013-12-16 | 2016-10-06 | Hitachi, Ltd. | Battery system and battery cell management device |
| KR101856663B1 (ko) * | 2011-06-03 | 2018-05-10 | 에스케이이노베이션 주식회사 | 다중팩 병렬 구조의 정보 교환을 위한 2차 전지 관리 시스템 및 방법 |
| KR101891843B1 (ko) * | 2010-11-02 | 2018-09-28 | 나비타스 솔루션스, 아이엔씨. | 스마트 배터리 관리를 위한 무선 배터리 에어리어 네트웍 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08139635A (ja) | 1994-11-07 | 1996-05-31 | Yokogawa Electric Corp | 無線通信装置 |
| US6928559B1 (en) * | 1997-06-27 | 2005-08-09 | Broadcom Corporation | Battery powered device with dynamic power and performance management |
| WO2007046224A1 (ja) | 2005-10-18 | 2007-04-26 | Matsushita Electric Industrial Co., Ltd. | 非接触データキャリア |
| US7969043B2 (en) * | 2007-11-05 | 2011-06-28 | O2 Micro, Inc. | Power management systems with multiple power sources |
| JP2010081716A (ja) | 2008-09-25 | 2010-04-08 | Toshiba Corp | 電池情報取得装置 |
| US20110051641A1 (en) * | 2009-08-30 | 2011-03-03 | Yang Pan | Low Power Consumption Wireless Sensory and Data Transmission System |
| JP5663748B2 (ja) | 2010-03-31 | 2015-02-04 | エリーパワー株式会社 | 管理システム、管理装置、管理ユニット及び選定方法 |
| WO2011125103A1 (ja) | 2010-04-02 | 2011-10-13 | 株式会社 東芝 | 無線装置 |
| US9564762B2 (en) * | 2010-11-02 | 2017-02-07 | Navitas Solutions | Fault tolerant wireless battery area network for a smart battery management system |
| US9559530B2 (en) | 2010-11-02 | 2017-01-31 | Navitas Solutions | Fault tolerant wireless battery area network for a smart battery management system |
| US9000935B2 (en) * | 2011-03-31 | 2015-04-07 | Elite Power Solutions Llc | Battery management system |
| JP5677171B2 (ja) * | 2011-04-07 | 2015-02-25 | 株式会社日立製作所 | 電池モジュール及びこれを備えた電池システム |
| JP5710013B2 (ja) | 2011-10-07 | 2015-04-30 | 日立オートモティブシステムズ株式会社 | 電池監視システム、上位コントローラ |
| KR101276930B1 (ko) | 2011-12-29 | 2013-06-19 | 전영환 | 방범시스템 |
| KR102155199B1 (ko) * | 2013-12-23 | 2020-09-11 | 삼성전자주식회사 | Nfc 장치의 매칭 회로, nfc 장치 및 전자 시스템 |
| JP6181211B2 (ja) * | 2014-01-20 | 2017-08-16 | 日立オートモティブシステムズ株式会社 | 電源制御システム及び電源制御装置 |
| US9981559B2 (en) | 2014-02-14 | 2018-05-29 | Hitachi, Ltd. | Battery control system, and battery system |
| KR102176853B1 (ko) | 2016-07-22 | 2020-11-10 | 주식회사 엘지화학 | 배터리 무선 제어 시스템 및 방법 |
| KR102148060B1 (ko) | 2016-08-18 | 2020-08-25 | 주식회사 엘지화학 | 배터리 셀 모듈 위치 식별장치 및 방법 |
| KR102695515B1 (ko) | 2016-10-05 | 2024-08-14 | 삼성전자주식회사 | 배터리 온도 제어 방법, 배터리 관리 장치 및 시스템 |
| KR102202614B1 (ko) * | 2017-09-19 | 2021-01-12 | 주식회사 엘지화학 | 배터리 관리 시스템 및 이를 포함하는 배터리 팩 |
-
2019
- 2019-12-06 CN CN201980012949.4A patent/CN111712987B/zh active Active
- 2019-12-06 KR KR1020190161341A patent/KR102379225B1/ko active Active
- 2019-12-06 WO PCT/KR2019/017211 patent/WO2020117000A1/ko not_active Ceased
- 2019-12-06 US US16/969,620 patent/US11296514B2/en active Active
- 2019-12-06 ES ES19893934T patent/ES3049602T3/es active Active
- 2019-12-06 JP JP2020550120A patent/JP7107487B2/ja active Active
- 2019-12-06 EP EP19893934.0A patent/EP3764507B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142083A (ja) * | 2008-12-15 | 2010-06-24 | Toshiba Corp | 組電池システム |
| KR101891843B1 (ko) * | 2010-11-02 | 2018-09-28 | 나비타스 솔루션스, 아이엔씨. | 스마트 배터리 관리를 위한 무선 배터리 에어리어 네트웍 |
| KR101856663B1 (ko) * | 2011-06-03 | 2018-05-10 | 에스케이이노베이션 주식회사 | 다중팩 병렬 구조의 정보 교환을 위한 2차 전지 관리 시스템 및 방법 |
| US20140229129A1 (en) * | 2013-02-12 | 2014-08-14 | Johnson Controls Technology Company | Battery monitoring network |
| US20160294019A1 (en) * | 2013-12-16 | 2016-10-06 | Hitachi, Ltd. | Battery system and battery cell management device |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3764507A4 * |
Also Published As
| Publication number | Publication date |
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| EP3764507B1 (en) | 2025-10-01 |
| KR20200070122A (ko) | 2020-06-17 |
| JP7107487B2 (ja) | 2022-07-27 |
| US11296514B2 (en) | 2022-04-05 |
| CN111712987A (zh) | 2020-09-25 |
| JP2021516945A (ja) | 2021-07-08 |
| KR102379225B1 (ko) | 2022-03-28 |
| CN111712987B (zh) | 2023-08-08 |
| EP3764507A4 (en) | 2021-04-07 |
| EP3764507A1 (en) | 2021-01-13 |
| ES3049602T3 (en) | 2025-12-17 |
| US20210028631A1 (en) | 2021-01-28 |
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