WO2018110955A1 - 상시 전원 공급을 위한 병렬 회로를 이용하여 배터리의 릴레이의 고장을 진단하는 장치 및 방법 - Google Patents
상시 전원 공급을 위한 병렬 회로를 이용하여 배터리의 릴레이의 고장을 진단하는 장치 및 방법 Download PDFInfo
- Publication number
- WO2018110955A1 WO2018110955A1 PCT/KR2017/014589 KR2017014589W WO2018110955A1 WO 2018110955 A1 WO2018110955 A1 WO 2018110955A1 KR 2017014589 W KR2017014589 W KR 2017014589W WO 2018110955 A1 WO2018110955 A1 WO 2018110955A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- state
- parallel
- battery
- relay
- Prior art date
Links
Images
Classifications
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for 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
-
- 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
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
-
- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
Definitions
- the present invention relates to a failure diagnosis technology of a relay, and more particularly, to an apparatus and method for diagnosing a failure of a relay of a battery while continuously supplying power of a battery through a parallel circuit to a battery requiring the power supply. will be.
- 12V LISB batteries are differentiated from 12V lead acid batteries and high voltage batteries.
- 12V lead acid batteries the long-term use ensures safety and there are no relays in the battery system to prevent this.
- 12V LISB batteries the development is still immature and the risk still exists and a relay exists to block the risk.
- the 12V LISB battery is a low voltage battery, and is differentiated from the conventional high voltage battery in that it is always supplied to the ECU after being mounted in the vehicle.
- a 12V LISB battery (hereinafter referred to as "12V battery”) must always supply power to the vehicle side.
- 12V battery When the power supply of the 12V battery is cut off while driving, a dangerous situation occurs in which the driving of the vehicle is stopped and electrical operation such as steering wheel operation and brake operation is stopped.
- the 12V battery When the 12V battery is powered off, the ECU system in the vehicle is reset. That is, even if the power supply is cut off even when the ECU system is off, the ECU system is reset to delete the vehicle information (eg, car seat position storage information, radio frequency information, mileage information, and other user-stored information). . Therefore, the opening of the relay should only occur in pre-designed situations such as vehicle maintenance, explosion protection of 12V batteries, and the like. In other words, if a dangerous situation such as a battery explosion is detected, the relay must be opened.
- An object of the present invention is to provide an apparatus and a method for detecting the same.
- the parking state is sensed and the failure of the switch of the relay is detected while the battery power is applied to the vehicle through the parallel circuit.
- an apparatus for diagnosing a failure of a relay requiring constant power output of a battery may be controlled to a first state in a closed state of a relay unit and an open state of a parallel unit, and in the first state. If the voltage and current of the parallel part are zero, the control unit is controlled to a closed state of the relay part and a second state of the closed part of the parallel part, and if the voltage of the parallel part is equal to the voltage of the battery and the current of the parallel part is 0 in the second state, When the current of the parallel part is equal to the current of the relay part, the switch of the relay part is judged to be normal. If the current of the parallel part is 0, the switch of the relay part is controlled.
- a control unit for determining a failure A relay unit which switches a switch to an open or closed state under control of the controller, and a current of the battery flows to supply power in the closed state; A parallel unit for switching a switch to an open or closed state under control of the controller, and applying a current of the battery in a closed state instead of the relay unit in an open state in which the supply of power is stopped; A parallel unit voltage sensing unit configured to sense a voltage of the parallel unit and output the same to the controller; And a parallel part current sensing unit configured to sense a current of the parallel part and output it to the controller.
- the apparatus may further include a battery current sensing unit configured to sense a current of a battery and output the same to the controller, and the controller may control to the second state when it is determined that the current of the battery input in the first state is less than or equal to the set current. It is characterized by determining whether or not.
- the device is a battery management system (BMS) device of a vehicle battery, and the controller determines that the vehicle is in a parking state when the current of the input battery is less than or equal to the set current, and determines whether to control to the second state.
- BMS battery management system
- the control unit controls the relay unit in a closed state in order to maintain a constant power supply of a battery, and controls the relay unit in an open state in a state in which the parallel unit is controlled in a closed state if necessary.
- the controller determines that the current of the parallel part is not zero in the controlled second state, the controller determines that the switch of the relay is a failure of the permanently open state.
- the apparatus may further include a battery voltage sensing unit configured to sense a voltage of a battery and output the same to the controller, wherein the controller is configured to control the voltage of the parallel unit to be equal to the voltage of the battery in a controlled second state. If the current is 0, it is determined that the second state is normal.
- a battery voltage sensing unit configured to sense a voltage of a battery and output the same to the controller, wherein the controller is configured to control the voltage of the parallel unit to be equal to the voltage of the battery in a controlled second state. If the current is 0, it is determined that the second state is normal.
- the controller in the controlled third state, receives the voltage and the current of the parallel part, and determines that the third state is normal when the voltage of the parallel part is equal to the voltage of the battery and the current of the parallel part is equal to the current of the battery. .
- the controller determines that the switch of the relay is a failure of the permanently closed state.
- the apparatus further includes a diode portion connected to the parallel portion to prevent reverse voltage, and a current output from the parallel portion flows through the diode portion.
- a BMS apparatus for diagnosing a failure of a relay requiring a constant power output of a battery, the BMS apparatus comprising: controlling to a first state of a closed state of a relay circuit and an open state of a parallel circuit, wherein the parallel circuit in a first state If the voltage and current of 0 are 0, control is performed to the closed state of the relay circuit and the second state, which is the closed state of the parallel circuit, and if the voltage of the parallel circuit is equal to the battery voltage and the current of the parallel circuit is 0 in the second state,
- the control circuit is controlled to a third state which is an open state of the relay circuit and a closed state of the parallel circuit, and the current of the parallel circuit is equal to the current of the relay circuit in the third state, the switch of the relay circuit is judged to be normal, and A controller for determining a switch of the relay circuit as a failure when the current is 0; A relay circuit for switching the switch to an open or closed state under the control of the controller, and flowing a current of
- a voltage sensing circuit connected to an output terminal of the parallel circuit and sensing a voltage of the parallel circuit and outputting the voltage to the controller; And a current sensing circuit connected to an output terminal of the parallel circuit and sensing the current of the parallel circuit and outputting the current to the controller.
- a method for diagnosing a failure of a relay in which a device requires a constant power output of a battery includes: controlling a first state in which a switch of a relay circuit is closed and a switch of a parallel circuit is open; If the voltage and current of the parallel circuit sensed in the controlled first state are zero, determining the first state as normal; If it is determined that the first state is normal, controlling the second state to a closed state of the relay circuit and a closed state of the parallel circuit; If the voltage of the parallel circuit sensed in the controlled second state is equal to the battery voltage and the current of the parallel circuit is zero, determining the second state as normal; If it is determined that the second state is normal, controlling to a third state which is an open state of a relay circuit and a closed state of a parallel circuit; If the current of the parallel circuit sensed in the controlled third state is equal to the current of the relay circuit, determining the switch of the relay circuit is normal; And determining that the switch of the relay circuit is a failure when the current of the
- the parallel circuit can protect the battery and the vehicle by diagnosing a failure of the relay while ensuring the battery power supply in the parking state in which the vehicle is in the idle state with respect to the battery that is always required to supply power to the vehicle side.
- diagnosing the failure of the relay switch prevents damage to the vehicle and the driver by operating the vehicle without knowing the fusion state in which the relay switch is not open, and by not opening the relay in the event of a battery explosion. have.
- FIG. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic internal configuration diagram of a BMS device corresponding to the device of FIG. 1.
- 3 to 5 are schematic flowcharts of a relay diagnosis method according to an embodiment of the present invention.
- FIG. 1 is a schematic structural diagram of an apparatus 130 according to an embodiment of the present invention.
- the parallel unit includes a voltage sensing unit 135, a parallel unit current sensing unit 136, a diode unit 137, and a controller 138.
- the battery 101 is a battery requiring constant power supply.
- the battery 101 is a 12V LISB battery that is mounted on the vehicle 151 and supplies power to the ECU system of the vehicle 151 at all times. Since the battery 151 is mounted in the vehicle 151, the battery 151 always supplies power to the vehicle 151 even when the ECU 151 is powered off, as well as driving and parking of the vehicle 151.
- the modules of the battery can be combined and extended to 24V, 36V, 48V, etc.
- the controller 138 controls the constant power supply of the battery 101.
- the device 130 may be implemented as a BMS device that manages charging and discharging of a battery.
- the controller 138 is connected to the components 131 to 137 and transmits and receives various signals and data to manage and control operations and functions of the components 131 to 137.
- the controller 138 controls the relay unit 133 in a closed state so that the battery 101 can continuously supply power to the vehicle 151.
- the relay unit 133 receives the control signal in the closed state from the control unit 138, the relay unit 133 switches the relay switch to the on state.
- the relay unit 133 controlled in the closed state provides a path through which the current output from the battery 101 flows to the vehicle 151. That is, the current output from the battery 101 is applied to flow to the vehicle 151 side through the relay unit 133.
- the switch of the relay unit 133 should be turned off.
- the control unit 138 is required to periodically diagnose the on and off operations of the relay switch.
- the diagnostic process involves the open state of the relay unit 133 to test the off operation of the relay switch.
- the control unit 138 controls the parallel unit 134 in a closed state in the open state of the relay unit 133 so that the vehicle 151 can always receive power from the battery 101.
- the current output from the 101 may flow to the vehicle 151 through the parallel part 134. That is, the current output from the battery 101 flows to the vehicle 151 through a parallel path or a bypass path through the parallel unit 134 in the closed state instead of the relay unit 133 in the open state. Therefore, the controller 138 necessarily controls at least one or more of the relay unit 133 and the parallel unit 134 in a closed state to control the vehicle 151 to be constantly supplied power from the battery 101.
- the vehicle 151 receives constant power from the battery 101.
- various electronic devices, equipment, systems, etc. which must be constantly supplied with power from the battery 101 may be substituted for the vehicle 151.
- a device such as a sensor device and a monitoring device, for which power supply must always be maintained is connected to the device 130 instead of the vehicle 151.
- each component 131 will be described in detail with the assumption that the battery 101 is built in the vehicle 151 and the device 130 is a BMS that manages the charging and discharging of the battery 101.
- FIG. 2 is a schematic internal configuration diagram of the BMS device 200 corresponding to the device 130 of FIG. 1.
- the battery current sensing unit 131 senses a current flowing through the battery 101 and outputs the sensed current to the controller 138.
- the battery current sensing unit 131 may be located in a circuit connected to the negative electrode of the battery 101.
- the battery current sensing unit 131 may be implemented in the BMS device 200 as an IC circuit that senses a current of the battery 101.
- the battery voltage sensing unit 132 senses the voltage output from the battery 101 and outputs the sensed voltage to the controller 138.
- the battery voltage sensing unit 132 may be located in a circuit connected to the positive electrode of the battery 101.
- the battery voltage sensing unit 132 may be implemented in the BMS device 200 as a circuit for sensing the voltage of the battery 101.
- the relay unit 133 includes a by-stable relay switch 233 and a coil.
- the relay unit 133 is located in a circuit connected to the positive electrode of the battery 101.
- the relay unit 133 switches the switch 233 to a switch off or close state according to a control signal received from the controller 138.
- the relay unit 133 in the closed state serves as a path for power supply in which the current of the battery 101 flows to the vehicle 151 side.
- the vistable relay After applying the on signal, the vistable relay remains on even if the signal is interrupted.
- the mono stable relay of the high voltage relay returns to the off state when the signal is interrupted after applying the on signal.
- the parallel unit 134 includes a switch 234 (eg, a FET switch).
- the parallel unit 134 is connected to the input terminal and the output terminal of the relay unit 133 as parallel circuits.
- the section of the parallel circuit starts at the input terminal of the relay switch 233 and then the relay switch 233 through the parallel unit 134, the parallel unit voltage sensing unit 135, the parallel unit current sensing unit 136, and the diode unit 137. Ends at the output of The parallel unit 134 switches the switch 234 to an open or closed state according to a control signal received from the controller 138.
- the parallel unit 134 allows the current of the battery 101 to flow to the vehicle 151 in the state where the switch 234 is closed in place of the relay unit 133 in the open state where the supply of power is stopped. Then, the current of the battery 101 flows to the vehicle 151 side through the path of the parallel circuit section.
- the parallel unit voltage sensing unit 135 senses the voltage output from the parallel unit 134 and outputs the sensed voltage to the controller 138.
- the parallel unit voltage sensing unit 135 may be located in the output circuit of the parallel unit 134.
- the parallel unit voltage sensing unit 135 may be implemented in the BMS device 200 as a circuit for sensing the output voltage of the parallel unit 134.
- the parallel unit current sensing unit 136 is output from the parallel unit 134 to sense the current flowing to the vehicle 151 side, and outputs the sensed current to the control unit 138.
- the parallel current sensing unit 136 may be located in the output circuit of the parallel unit 134.
- the parallel unit current sensing unit 136 may be implemented in the BMS device 200 as an IC circuit for sensing the output current of the parallel unit 134.
- the diode unit 137 may be located in the output circuit of the parallel unit 134 to prevent reverse current and reverse voltage.
- the current output from the parallel part 134 in the closed state flows through the diode part 137.
- the reverse current and the reverse voltage are prevented, thereby preventing damage to the circuit components and ensuring the stability of the parallel circuit.
- the controller 138 controls the first state corresponding to the closed state of the relay unit 133 and the open state of the parallel unit in the normal state.
- the controller 138 periodically determines whether to start the failure of the relay switch 233 after controlling to the first state.
- the control unit 134 may relay the current when the current of the battery 101 of the first state output from the battery current sensing unit 131 is less than or equal to the set current.
- the process of diagnosing the failure of the switch 233 is started.
- the controller 138 determines whether a condition equal to or less than a set current is satisfied every set period (for example, 60 seconds).
- the set current for determining the parking state is set in the BMS device 200 in response to constraints such as a vehicle model, a manufacturer, a battery, and the like.
- the controller 138 starts the determination of the first state. First, when the voltage and current output from the parallel unit voltage sensing unit 135 and the parallel unit current sensing unit 136 are 0, the controller 138 determines the first state as a normal state and closes the relay unit 133. The state and the second state which is the closed state of the parallel part 134 are controlled. In the first state, since the current of the battery 101 flows to the vehicle 151 through the relay unit 133, the voltage and current sensed at the output terminal of the parallel unit 134 should be almost zero, so that the first state is normal. Judging.
- the control unit 138 outputs the close control signal to the parallel unit 134 under the control of the second state, and the parallel unit 134 switches the switch 234 to the closed state according to the received control signal.
- the relay unit 133 In the second state, the relay unit 133 is maintained in the closed state, and the parallel unit 134 is switched to the closed state.
- the controller 138 In the second state, the controller 138 outputs the voltage of the parallel unit 134 from the parallel unit voltage sensing unit 135, and receives the current of the parallel unit 134 from the parallel unit current sensing unit 136. If the output voltage is equal to the voltage of the battery of which the output voltage is greater than zero, and the output current is zero, the controller 138 determines the second state as a normal state and controls the third state.
- the controller 138 receives a voltage of the parallel part (battery voltage) greater than 0 from the parallel part voltage sensing part 135.
- the voltage sensed by the parallel unit voltage sensing unit 135 is the same as the voltage sensed by the battery voltage sensing unit 132.
- the resistance of the relay unit 133 is smaller than the resistance of the parallel unit 134 so that the current of the battery 101 flows through the relay unit 133, the current sensed through the parallel unit current sensing unit 136 is 0. If the current sensed through the parallel unit current sensing unit 136 is not 0, the controller 138 flows a current through the parallel unit 134 so that the relay switch 233 is closed as a failure of the permanently open state. We believe it is impossible to switch to
- the controller 138 outputs an open control signal to the relay unit 133 according to the control of the third state, and the relay unit 133 switches the switch 233 to the open state according to the received control signal.
- the relay unit 133 is switched to the open state, and the parallel unit 134 is maintained in the closed state.
- the controller 138 In the third state, the controller 138 outputs the voltage of the parallel unit 134 from the parallel unit voltage sensing unit 135, and receives the current of the parallel unit 134 from the parallel unit current sensing unit 136. If the output voltage of the parallel unit 134 is the same as the voltage of the battery voltage sensing unit 132, and the output current of the parallel unit 134 is the same as the current of the battery current sensing unit 131, the controller 138 may output a relay. The switch 233 determines that the third state is normal as normal.
- the switch 234 In the third state where the steady state is determined, only the switch 234 is in the closed state, so that the current of the battery 101 flows only through the section of the parallel circuit. Therefore, the voltage sensed by the parallel voltage sensing unit 135 is the same as the voltage sensed by the battery voltage sensing unit 132. In addition, since the current of the battery 101 flows through the parallel unit 134 instead of the relay unit 133 in the open state, the current sensed through the parallel unit current sensing unit 136 is greater than zero. It is equal to the current of 131.
- the control unit 138 does not flow the current through the parallel part 134, so that the relay switch 233 fails in the permanently closed state ( Example: relay fusion), it is determined that it is impossible to switch to the open state.
- FIG. 3 to 5 are schematic flowcharts of a relay diagnosis method according to an embodiment of the present invention.
- 3 is a flowchart in which the device 130 controls the first state
- FIG. 4 is a device 130 in the second state
- FIG. 5 is a device 130 in the third state.
- the device 130 since the battery 101 is connected to a load device such as the vehicle 151, the device 130 is in a state in which the switch 233 of the relay is closed and the switch 234 of the parallel circuit is open. Control to the first state of (S301). Device 130 senses the output voltage and output current of the battery from the circuit of the battery (S302). In order to diagnose a failure of the relay switch 233, the device 130 determines whether the current of the sensed battery is less than or equal to the set current (S304).
- the set current is preferably the minimum current that senses the idle state of the device.
- the BMS device 200 constantly supplies power of the battery 101 to the vehicle 151 as the main function, the ECU system in which the minimum current is consumed in the vehicle 151 is powered off in a parking state.
- the minimum current for judging is set in the BMS device 200.
- the device 130 If it is determined through the device 130 that current below the set current is consumed, the device 130 starts diagnosing the switch 233. First, the device 130 determines whether the output voltage and the output current of the parallel circuit are zero (S305). If 0 is determined, the device 130 determines that the first state is normal and starts controlling the second state (S306). Since the current flows through the relay circuit and the parallel switch 234 is open in the first state, the voltage and current of the parallel circuit should be sensed to almost zero values.
- the device 130 controls the second state so that the relay switch 233 is closed and the switch 234 of the parallel circuit is switched to the closed state (S401).
- the device 130 senses the output voltage and the output current from the parallel circuit (S402).
- the device 130 determines whether the sensed voltage of the parallel circuit is a battery voltage and whether the sensed current of the parallel circuit is 0 (S403).
- the relay switch 233 and the parallel switch 234 are in a closed state, and current flows through the relay switch 233 having a small resistance. Thus, the same voltage as the battery voltage is sensed from the parallel circuit, but the sensing current must be zero. If the conditions of voltage and current are satisfied, the device 130 determines that the second state is normal (S404). If it is determined that the second state is normal, control of the third state is started.
- the device 130 compares the current and the battery current of the parallel circuit (S405) and judges the same, it is diagnosed that the relay switch 233 is in the open state as a permanent failure state due to the battery current flowing through the parallel circuit. (S406).
- the device 130 controls to the third state so that the relay switch 233 is switched to the open state and the switch 234 of the parallel circuit is kept in the closed state (S501).
- the device 130 senses the output voltage and the output current from the parallel circuit (S502).
- the device 130 determines whether the sensed voltage of the parallel circuit is a battery voltage and whether the sensed current of the parallel circuit is a battery current (S503).
- the third state due to the open relay switch 233, current of the battery 101 flows to the vehicle 151 through the parallel switch 234.
- a voltage equal to the battery voltage must be sensed, and a current equal to the battery current must be sensed. If the conditions of the voltage and current are satisfied, the device 130 determines that the third state is normal (S504), and returns to control to the normal state of the first state (S507).
- the relay switch 233 is fused. Diagnose as a permanent failure state of (S506).
Abstract
Description
Claims (23)
- 릴레이부의 클로즈(close) 상태 및 병렬부의 오픈(open) 상태인 제 1상태로 제어하고, 제 1상태에서 상기 병렬부의 전압 및 전류가 0이면, 릴레이부의 클로즈 상태 및 병렬부의 클로즈 상태인 제 2상태로 제어하고, 제 2상태에서 상기 병렬부의 전압이 배터리의 전압과 같고 상기 병렬부의 전류가 0이면, 릴레이부의 오픈 상태 및 병렬부의 클로즈 상태인 제 3상태로 제어하고, 제 3상태에서 상기 병렬부의 전류가 상기 릴레이부의 전류와 같으면 릴레이부의 스위치를 정상으로 판단하고, 상기 병렬부의 전류가 0이면 릴레이부의 스위치를 고장으로 판단하는 제어부;상기 제어부의 제어에 의해 스위치를 오픈 또는 클로즈의 상태로 스위칭하고, 클로즈 상태에서 전원의 공급을 위해 배터리의 전류가 흐르는 릴레이부;상기 제어부의 제어에 의해 스위치를 오픈 또는 클로즈의 상태로 스위칭하고, 상기 전원의 공급이 중단되는 오픈 상태의 상기 릴레이부를 대신하여, 클로즈 상태에서 상기 배터리의 전류를 인가하는 병렬부;상기 병렬부의 전압을 센싱하여 상기 제어부로 출력하는 병렬부 전압 센싱부; 및상기 병렬부의 전류를 센싱하여 상기 제어부로 출력하는 병렬부 전류 센싱부를 포함하는 장치.
- 제 1항에 있어서,배터리의 전류를 센싱하여 상기 제어부로 출력하는 배터리 전류 센싱부를 더 포함하고,상기 제어부는 제 1상태에서 입력받은 배터리의 전류가 설정된 전류 이하라고 판단하면, 상기 제 2상태로 제어할 것인지의 판단을 시작하는 것을 특징으로 하는 장치.
- 제 2항에 있어서,상기 장치는 차량 배터리의 BMS(Battery Management System)장치로서,상기 제어부는 입력받은 배터리의 전류가 설정된 전류 이하일 경우 차량이 주차 상태인 것으로 판단하고, 상기 제 2상태로 제어할 것인지의 판단을 시작하는 것을 특징으로 하는 장치.
- 제 1항에 있어서,상기 제어부는,배터리의 상시 전원 공급을 유지하기 위해, 상기 릴레이부를 클로즈 상태로 제어하고,필요시 상기 병렬부를 클로즈 상태로 제어한 상태에서 상기 릴레이부를 오픈 상태로 제어하는 것을 특징으로 하는 장치.
- 제 1항에 있어서,상기 제어부는,제어된 제 2상태에서, 상기 병렬부의 전류가 0이 아닌 것을 판단하면, 상기 릴레이의 스위치가 영구 오픈 상태의 고장인 것으로 판단하는 것을 특징으로 하는 장치.
- 제 1항에 있어서,배터리의 전압을 센싱하여 상기 제어부로 출력하는 배터리 전압 센싱부를 더 포함하고,상기 제어부는,제어된 제 2상태에서, 상기 병렬부의 전압이 상기 배터리의 전압과 동일하고, 상기 병렬부의 전류가 0이면 상기 제 2상태의 정상으로 판단하는 것을 특징으로 하는 장치.
- 제 6항에 있어서,상기 제 2상태는,상기 릴레이부의 저항이 상기 병렬부의 저항보다 작아서 배터리의 전류가 상기 릴레이부를 통해 흐르기 때문에 센싱된 병렬부의 전류가 0인 것을 특징으로 하는 장치.
- 제 1항에 있어서,상기 제어부는,제어된 제 3상태에서, 병렬부의 전압 및 전류를 입력받고, 병렬부의 전압이 배터리의 전압과 동일하고, 병렬부의 전류가 배터리의 전류와 동일하면 상기 제 3상태의 정상으로 판단하는 것을 특징으로 하는 장치.
- 제 8항에 있어서,상기 제 3상태는,배터리의 전류가 오픈 상태의 릴레이부 대신에 상기 병렬부를 통해 흐르기 때문에 병렬부의 전류와 배터리의 전류가 동일한 것을 특징으로 하는 장치.
- 제 1항에 있어서,상기 제어부는,제 3상태에서 상기 병렬부의 전류와 배터리의 전류가 동일하지 않으면, 상기 릴레이의 스위치가 영구 클로즈 상태의 고장으로 판단하는 것을 특징으로 하는 장치.
- 제 1항에 있어서,역 전압을 방지하기 위해 상기 병렬부에 연결되는 다이오드부를 더 포함하고,상기 병렬부로부터 출력된 전류는 상기 다이오드부를 통해 상기 릴레이부의 출력단으로 흐르는 것을 특징으로 하는 장치.
- 배터리의 상시 전원 출력이 요구되는 릴레이의 고장을 진단하는 BMS 장치에 있어서,릴레이 회로의 클로즈 상태 및 병렬 회로의 오픈 상태인 제 1상태로 제어하고, 제 1상태에서 상기 병렬 회로의 전압 및 전류가 0이면, 릴레이 회로의 클로즈 상태 및 병렬 회로의 클로즈 상태인 제 2상태로 제어하고, 제 2상태에서 상기 병렬 회로의 전압이 배터리 전압과 같고 상기 병렬 회로의 전류가 0이면, 릴레이 회로의 오픈 상태 및 병렬 회로의 클로즈 상태인 제 3상태로 제어하고, 제 3상태에서 상기 병렬 회로의 전류가 릴레이 회로의 전류와 같으면, 릴레이 회로의 스위치를 정상으로 판단하고, 상기 병렬 회로의 전류가 0이면 릴레이 회로의 스위치를 고장으로 판단하는 제어부;상기 제어부의 제어에 의해 스위치를 오픈 또는 클로즈의 상태로 스위칭하고, 클로즈 상태에서 전원의 공급을 위해 배터리의 전류가 흐르는 릴레이 회로;상기 릴레이 회로의 입력단에 연결되고, 상기 제어부를 제어에 의해 스위치를 오픈 또는 클로즈의 상태로 스위칭하고, 상기 전원의 공급이 중단되는 상기 릴레이 회로를 대신하여, 클로즈 상태에서 상기 배터리의 전류를 인가하는 병렬 회로;상기 병렬 회로의 출력단에 연결되고, 상기 병렬 회로의 전압을 센싱하여 상기 제어부로 출력하는 전압 센싱 회로; 및상기 병렬 회로의 출력단에 연결되고, 상기 병렬 회로의 전류를 센싱하여 상기 제어부로 출력하는 전류 센싱 회로를 포함하는 BMS 장치.
- 장치가 배터리의 상시 전원 출력이 요구되는 릴레이의 고장을 진단하는 방법에 있어서,릴레이 회로의 스위치가 클로즈 상태이고 병렬 회로의 스위치가 오픈 상태인 제 1상태로 제어하는 단계;제어된 제 1상태에서 센싱된 병렬 회로의 전압 및 전류가 0이면, 제 1상태를 정상으로 판단하는 단계;상기 제 1상태의 정상이 판단되면, 릴레이 회로의 클로즈 상태 및 병렬 회로의 클로즈 상태인 제 2상태로 제어하는 단계;제어된 제 2상태에서 센싱된 병렬 회로의 전압이 배터리 전압과 같고 상기 병렬 회로의 전류가 0이면, 제 2상태를 정상으로 판단하는 단계;상기 제 2상태의 정상이 판단되면, 릴레이 회로의 오픈 상태 및 병렬 회로의 클로즈 상태인 제 3상태로 제어하는 단계;제어된 제 3상태에서 센싱된 병렬 회로의 전류가 릴레이 회로의 전류와 같으면, 릴레이 회로의 스위치를 정상으로 판단하는 단계; 및상기 병렬 회로의 전류가 0이면 릴레이 회로의 스위치를 고장으로 판단하는 단계를 포함하는 방법.
- 제 13항에 있어서,상기 제 1상태로 제어하는 단계는,배터리의 전압 및 전류를 센싱하는 단계를 더 포함하고,센싱된 배터리의 전류가 설정된 전류 이하라고 판단하면, 상기 제 1상태를 정상으로 판단하는 단계를 시작하는 것을 특징으로 하는 방법.
- 제 14항에 있어서,상기 장치는 차량 배터리의 BMS(Battery Management System)장치로서,센싱된 배터리의 전류가 설정된 전류 이하일 경우 차량이 주차 상태인 것으로 판단하고, 상기 제 1상태를 정상으로 판단하는 단계를 시작하는 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 장치는,배터리의 상시 전원 공급을 유지하기 위해,상기 릴레이 회로를 클로즈 상태로 제어하여 상시 전원 공급을 유지하고,필요시 상기 병렬 회로를 클로즈 상태로 제어한 후, 상기 릴레이 회로를 오픈 상태로 제어하여, 오픈된 릴레이 회로 대신에 상기 병렬 회로가 상기 상시 전원 공급을 유지하는 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 제 2상태를 정상으로 판단하는 단계는,상기 병렬 회로의 전류 및 출력 전압을 센싱하고, 센싱된 병렬 회로의 전류가 0이 아닌 것을 판단하면, 상기 릴레이의 스위치가 영구 오픈 상태의 고장인 것으로 판단하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 제 2상태를 정상으로 판단하는 단계는,센싱된 병렬 회로의 전압이 배터리의 전압과 동일하고, 센싱된 병렬 회로의 전류가 0이면 상기 제 2상태의 정상으로 판단하는 단계인 것을 특징으로 하는 방법.
- 제 18항에 있어서,상기 제 2상태는,상기 릴레이 회로의 저항이 상기 병렬 회로의 저항보다 작아서 배터리의 전류가 상기 릴레이 회로를 통해 흐르기 때문에 센싱된 병렬 회로의 전류가 0인 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 릴레이의 스위치를 정상으로 판단하는 단계는,상기 병렬 회로의 전압 및 전류를 센싱하고, 병렬 회로의 전압이 배터리의 전압과 동일하고, 병렬 회로의 전류가 배터리의 전류와 동일하면 상기 제 3상태의 정상으로 판단하는 단계인 것을 특징으로 하는 방법.
- 제 20항에 있어서,상기 제 3상태는,배터리의 전류가 오픈 상태의 릴레이 회로 대신에 상기 병렬 회로를 통해 흐르기 때문에 병렬부의 전류와 배터리의 전류가 동일한 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 고장으로 판단하는 단계는,제 3상태에서 상기 병렬 회로의 전류와 배터리의 전류가 동일하지 않으면, 상기 릴레이의 스위치가 영구 클로즈 상태의 고장으로 판단하는 단계인 것을 특징으로 하는 방법.
- 제 13항에 있어서,상기 릴레이 스위치를 정상으로 판단하는 단계는,상기 병렬 회로로부터 출력된 전류는 역 전압을 방지하기 위해 상기 병렬 회로에 연결된 다이오드 회로를 통해 릴레이 스위치의 출력단으로 흐르는 단계인 것을 특징으로 하는 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/094,175 US10753975B2 (en) | 2016-12-12 | 2017-12-12 | Apparatus for diagnosing relay failure of battery using parallel circuit for constant power supply and method thereof |
PL17880124.7T PL3444624T3 (pl) | 2016-12-12 | 2017-12-12 | Urządzenie do diagnozowania awarii przekaźnika akumulatora przy użyciu obwodu równoległego do ciągłego dostarczania energii i powiązany sposób |
EP17880124.7A EP3444624B1 (en) | 2016-12-12 | 2017-12-12 | Apparatus for diagnosing relay failure of battery using parallel circuit for constant power supply and method thereof |
CN201780029619.7A CN109154634B (zh) | 2016-12-12 | 2017-12-12 | 诊断电池的继电器故障的装置及其方法 |
JP2018559784A JP6671512B2 (ja) | 2016-12-12 | 2017-12-12 | 常時電源供給のための並列回路を用いてバッテリーのリレーの故障を診断する装置及び方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160168495A KR102058198B1 (ko) | 2016-12-12 | 2016-12-12 | 상시 전원 공급을 위한 병렬 회로를 이용하여 배터리의 릴레이의 고장을 진단하는 장치 및 방법 |
KR10-2016-0168495 | 2016-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018110955A1 true WO2018110955A1 (ko) | 2018-06-21 |
Family
ID=62559842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2017/014589 WO2018110955A1 (ko) | 2016-12-12 | 2017-12-12 | 상시 전원 공급을 위한 병렬 회로를 이용하여 배터리의 릴레이의 고장을 진단하는 장치 및 방법 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10753975B2 (ko) |
EP (1) | EP3444624B1 (ko) |
JP (1) | JP6671512B2 (ko) |
KR (1) | KR102058198B1 (ko) |
CN (1) | CN109154634B (ko) |
PL (1) | PL3444624T3 (ko) |
WO (1) | WO2018110955A1 (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018202680A1 (de) * | 2017-02-23 | 2018-08-23 | Gs Yuasa International Ltd. | Diagnosevorrichtung, Energiespeichervorrichtung und Diagnoseverfahren |
KR102291762B1 (ko) * | 2017-11-07 | 2021-09-03 | 주식회사 엘지에너지솔루션 | 릴레이 진단 회로 |
JP2019158446A (ja) * | 2018-03-09 | 2019-09-19 | 株式会社Gsユアサ | 電流計測装置、蓄電装置、電流計測方法 |
DE102019203508A1 (de) * | 2019-03-15 | 2020-09-17 | Leoni Bordnetz-Systeme Gmbh | Schaltvorrichtung sowie Verfahren zum Betrieb einer Schaltvorrichtung |
KR20200111314A (ko) * | 2019-03-18 | 2020-09-29 | 현대자동차주식회사 | 차량의 고전압 릴레이 시스템 및 그 진단방법 |
KR20200119516A (ko) * | 2019-04-10 | 2020-10-20 | 에스케이이노베이션 주식회사 | 배터리 관리 시스템 및 릴레이 진단 장치 |
EP3985403A4 (en) | 2019-11-13 | 2022-08-10 | LG Energy Solution, Ltd. | APPARATUS AND METHOD FOR DIAGNOSING A MALFUNCTION OF THE SWITCHING UNIT INCLUDED IN A MULTIPLE BATTERY PACK |
KR20210077065A (ko) * | 2019-12-16 | 2021-06-25 | 현대자동차주식회사 | 차량용 pra 열화 제어 시스템 및 그의 pra 열화 제어 방법 |
CN111257767B (zh) * | 2020-02-21 | 2022-07-12 | 深圳普瑞赛思检测技术有限公司 | 电池集成检测系统及方法 |
JP2022163927A (ja) * | 2021-04-15 | 2022-10-27 | 株式会社オートネットワーク技術研究所 | 給電制御システム及び処理方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120005729A (ko) * | 2010-07-09 | 2012-01-17 | (주)브이이엔에스 | 전기자동차 및 그 동작방법 |
KR20140136844A (ko) * | 2013-05-21 | 2014-12-01 | 엘지이노텍 주식회사 | 배터리 팩의 릴레이 진단장치 및 배터리 제어 시스템 |
JP2015008600A (ja) * | 2013-06-25 | 2015-01-15 | 株式会社Gsユアサ | スイッチ故障診断装置、スイッチ故障診断方法 |
US20150316617A1 (en) * | 2012-03-01 | 2015-11-05 | Gs Yuasa International Ltd. | Switch failure detection device, battery pack including the same, and method of detecting failure of electronic switch |
KR20160121079A (ko) * | 2015-04-10 | 2016-10-19 | 현대자동차주식회사 | 친환경차량의 릴레이 고장검출을 위한 전압센싱장치 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2801027C3 (de) * | 1978-01-11 | 1982-03-18 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zur Überprüfung von Akkumulatoren |
JP4572168B2 (ja) * | 2003-03-31 | 2010-10-27 | 日本電気株式会社 | リレー接点の溶着の検出方法及び装置 |
US7557583B2 (en) * | 2005-11-21 | 2009-07-07 | Gm Global Technology Operations, Inc. | System and method for monitoring an electrical power relay in a hybrid electric vehicle |
JP2007159326A (ja) * | 2005-12-07 | 2007-06-21 | Honda Motor Co Ltd | 電源制御装置 |
JP4510753B2 (ja) | 2005-12-16 | 2010-07-28 | パナソニックEvエナジー株式会社 | 電源装置、及びその制御方法 |
JP2007203929A (ja) * | 2006-02-02 | 2007-08-16 | Auto Network Gijutsu Kenkyusho:Kk | 車両用暗電流測定装置及び車両用電源制御装置 |
JP5058635B2 (ja) | 2007-03-12 | 2012-10-24 | 株式会社日立製作所 | リレー故障検知機能を持つフェールセーフ出力回路及び鉄道用三灯式色灯信号機の灯火出力回路 |
JP4450004B2 (ja) * | 2007-03-30 | 2010-04-14 | トヨタ自動車株式会社 | 電源回路の制御装置および制御方法 |
KR100867834B1 (ko) | 2007-08-16 | 2008-11-10 | 현대자동차주식회사 | 하이브리드자동차 고전압 릴레이 및 릴레이 제어회로의고장 진단 방법 |
JP5488046B2 (ja) | 2010-02-25 | 2014-05-14 | 株式会社デンソー | 車載電源装置 |
JP5411046B2 (ja) | 2010-03-31 | 2014-02-12 | プライムアースEvエナジー株式会社 | 車両用電池管理装置及び電流センサのオフセット検出方法 |
CN103097177B (zh) | 2010-07-09 | 2015-09-02 | Lg电子株式会社 | 电动汽车及其控制方法 |
JP2012130107A (ja) | 2010-12-13 | 2012-07-05 | Chugoku Electric Power Co Inc:The | 地絡保護継電システムおよび地絡保護方法 |
JP5945804B2 (ja) | 2012-03-29 | 2016-07-05 | パナソニックIpマネジメント株式会社 | リレー溶着診断装置 |
KR101602434B1 (ko) | 2012-11-09 | 2016-03-21 | 주식회사 엘지화학 | 충전시 발생하는 셀 밸런싱 스위치의 오진단 방지 장치 및 오진단 방지 방법 |
JP2016148688A (ja) | 2013-05-30 | 2016-08-18 | 株式会社 ニコンビジョン | 光学機器 |
KR101830285B1 (ko) | 2013-11-04 | 2018-02-20 | 주식회사 엘지화학 | 작업자의 안전을 위한 식별부재를 포함하는 전지팩 |
JP2015095442A (ja) * | 2013-11-14 | 2015-05-18 | 株式会社オートネットワーク技術研究所 | スイッチ診断装置、スイッチ回路及びスイッチ診断方法 |
KR102210282B1 (ko) | 2014-05-30 | 2021-02-01 | 삼성전자주식회사 | 릴레이 상태 검출 방법 및 장치 |
JP2016010263A (ja) * | 2014-06-25 | 2016-01-18 | トヨタ自動車株式会社 | 蓄電システム |
JP6435891B2 (ja) * | 2015-02-02 | 2018-12-12 | オムロン株式会社 | 継電ユニット、継電ユニットの制御方法 |
KR101712258B1 (ko) | 2015-02-24 | 2017-03-03 | 주식회사 엘지화학 | 릴레이 융착 감지 장치 및 방법 |
JP6292154B2 (ja) | 2015-03-19 | 2018-03-14 | トヨタ自動車株式会社 | 電源システム |
-
2016
- 2016-12-12 KR KR1020160168495A patent/KR102058198B1/ko active IP Right Grant
-
2017
- 2017-12-12 WO PCT/KR2017/014589 patent/WO2018110955A1/ko active Application Filing
- 2017-12-12 JP JP2018559784A patent/JP6671512B2/ja active Active
- 2017-12-12 US US16/094,175 patent/US10753975B2/en active Active
- 2017-12-12 EP EP17880124.7A patent/EP3444624B1/en active Active
- 2017-12-12 PL PL17880124.7T patent/PL3444624T3/pl unknown
- 2017-12-12 CN CN201780029619.7A patent/CN109154634B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120005729A (ko) * | 2010-07-09 | 2012-01-17 | (주)브이이엔에스 | 전기자동차 및 그 동작방법 |
US20150316617A1 (en) * | 2012-03-01 | 2015-11-05 | Gs Yuasa International Ltd. | Switch failure detection device, battery pack including the same, and method of detecting failure of electronic switch |
KR20140136844A (ko) * | 2013-05-21 | 2014-12-01 | 엘지이노텍 주식회사 | 배터리 팩의 릴레이 진단장치 및 배터리 제어 시스템 |
JP2015008600A (ja) * | 2013-06-25 | 2015-01-15 | 株式会社Gsユアサ | スイッチ故障診断装置、スイッチ故障診断方法 |
KR20160121079A (ko) * | 2015-04-10 | 2016-10-19 | 현대자동차주식회사 | 친환경차량의 릴레이 고장검출을 위한 전압센싱장치 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3444624A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP3444624A1 (en) | 2019-02-20 |
EP3444624B1 (en) | 2022-09-21 |
CN109154634A (zh) | 2019-01-04 |
KR102058198B1 (ko) | 2019-12-20 |
US10753975B2 (en) | 2020-08-25 |
PL3444624T3 (pl) | 2022-12-05 |
US20190128965A1 (en) | 2019-05-02 |
EP3444624A4 (en) | 2019-09-25 |
CN109154634B (zh) | 2020-12-01 |
JP6671512B2 (ja) | 2020-03-25 |
KR20180067102A (ko) | 2018-06-20 |
JP2019521323A (ja) | 2019-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018110955A1 (ko) | 상시 전원 공급을 위한 병렬 회로를 이용하여 배터리의 릴레이의 고장을 진단하는 장치 및 방법 | |
WO2014077522A1 (ko) | 배터리 시스템의 릴레이 융착 검출 장치 및 방법 | |
KR100955898B1 (ko) | 전원시스템용 감시장치 | |
WO2019078616A2 (ko) | 전기 자동차 충전 장치 | |
WO2018012696A1 (ko) | 실시간 동작 감지를 통한 컨텍터의 비정상 개방 방지 시스템 및 방법 | |
WO2016133370A1 (en) | Contactor control system | |
WO2018097536A2 (ko) | 배터리 관리 장치 | |
JP2009259762A (ja) | 複数のリレーを有する電源装置 | |
WO2019093667A1 (ko) | 릴레이 진단 회로 | |
WO2019117512A1 (ko) | 워치독 타이머를 진단하기 위한 장치 및 방법 | |
CN114475252A (zh) | 车辆电池的数据处理系统、方法、车辆以及存储介质 | |
US20050002140A1 (en) | System and method for protecting against short circuits in electric power distribution architectures with two voltage levels | |
WO2019132245A1 (ko) | 배터리 관리 시스템 및 이를 포함하는 배터리 팩 | |
WO2023080343A1 (ko) | 고압부 전원과 자동차 샤시의 절연 이상 검출하기 위해 서로 절연된 두개 이상의 전원을 가진 전원 공급시스템 및 이를 이용한 방법 | |
WO2022098012A1 (ko) | 배터리 관리 방법 및 이를 이용한 배터리 시스템 | |
WO2021066394A1 (ko) | 병렬 연결 셀의 연결 고장 검출 방법 및 시스템 | |
WO2019098575A1 (ko) | 전기 제어 시스템 | |
WO2019124813A1 (ko) | 메인 제어부 이상 진단 시스템 및 방법 | |
KR20140063170A (ko) | 자동차 고전압 배터리의 전원단속장치 및 그 제어방법 | |
WO2023177192A1 (ko) | 팩 릴레이 진단이 가능한 배터리 시스템 및 이를 포함하는 차량 | |
WO2021215569A1 (ko) | 외부 신호를 이용한 bms 동작 제어 장치 및 방법 | |
WO2023120847A1 (ko) | 배터리 시스템, 이를 포함하는 전기차, 및 전기차의 동작 방법 | |
WO2022019526A1 (ko) | 배터리 장치, 배터리 관리 시스템 및 컨택터 공급 전압 진단 방법 | |
WO2024080614A1 (ko) | 배터리 관리 장치, bms 데이터 저장 시스템 및 bms 데이터 저장 방법 | |
WO2022080699A1 (ko) | 배터리 시스템의 열 이벤트 감지 방법 및 이를 적용한 배터리 시스템 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018559784 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017880124 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017880124 Country of ref document: EP Effective date: 20181114 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17880124 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |