[go: up one dir, main page]

WO2018180333A1 - Dispositif de commande pour système d'alimentation électrique embarqué, et système d'alimentation électrique embarqué - Google Patents

Dispositif de commande pour système d'alimentation électrique embarqué, et système d'alimentation électrique embarqué Download PDF

Info

Publication number
WO2018180333A1
WO2018180333A1 PCT/JP2018/008951 JP2018008951W WO2018180333A1 WO 2018180333 A1 WO2018180333 A1 WO 2018180333A1 JP 2018008951 W JP2018008951 W JP 2018008951W WO 2018180333 A1 WO2018180333 A1 WO 2018180333A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
power storage
storage unit
power supply
charging
Prior art date
Application number
PCT/JP2018/008951
Other languages
English (en)
Japanese (ja)
Inventor
永典 蒲原
滋之 藤井
皓 滕
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2018180333A1 publication Critical patent/WO2018180333A1/fr

Links

Images

Classifications

    • 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
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • 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
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a control device for an in-vehicle power supply system and an in-vehicle power supply device.
  • the present invention has been made based on the above-described circumstances, and can be applied to an in-vehicle power supply system in which power is supplied by a power storage unit at least when a power supply unit fails, and it is determined that the power storage unit is in a deteriorated state. It is an object of the present invention to realize a control device in which necessary power is easily supplied from a power storage unit even when the power storage unit is continuously used.
  • the control device includes: A control device for an in-vehicle power supply system including an in-vehicle power source unit and an in-vehicle power storage unit that supplies power to the load when power supply from the power source unit to the load is interrupted, A charging circuit for charging the power storage unit; A voltage detection unit for detecting a charging voltage of the power storage unit; Based on the charging voltage detected by the voltage detection unit, a control unit that causes the charging circuit to perform a charging operation so that the charging voltage of the power storage unit reaches a charging target voltage; A deterioration determination unit that determines whether or not the power storage unit is in a predetermined deterioration state; Have The control unit sets the charging target voltage to a first target voltage when the deterioration determining unit determines that the power storage unit is not in the deteriorated state, and determines that the power storage unit is in the deteriorated state. In this case, the charging target voltage is set to a second target voltage that is larger than the first target voltage.
  • the on-vehicle power supply device includes the control device and a power storage unit.
  • the control device of the first aspect can determine whether or not the power storage unit is in a deteriorated state by the deterioration determination unit. Furthermore, when it is determined that the power storage unit is in a deteriorated state, the control unit performs the charging operation by setting the charge target voltage to a second target voltage that is higher than the first target voltage when not in the deteriorated state. The charging voltage of the power storage unit can be raised. Therefore, even if the use of the power storage unit is continued after it is determined that the power storage unit is in a deteriorated state, the required power for backup is easily supplied by the power storage unit.
  • the vehicle-mounted power supply device of the second aspect has the same effect as the control device of the first aspect.
  • FIG. 1 is a block diagram schematically illustrating an in-vehicle power supply system including an in-vehicle power supply device according to a first embodiment. It is a block diagram which shows notionally the relationship and related structure of each function performed with the control circuit of the vehicle-mounted power supply device of Example 1.
  • FIG. 3 is a flowchart illustrating a flow of charge control executed by a control circuit of the in-vehicle power supply device according to the first embodiment.
  • 4 is a flowchart illustrating a flow of deterioration determination during charge control in FIG. 3. It is a graph which illustrates the change of the charging voltage at the time of degradation determination control performed with the vehicle-mounted power supply device of Example 1, a charging current, and an electrical storage part (capacitor) temperature.
  • the control device may include a temperature detection unit that detects the temperature of the power storage unit, an internal resistance value detection unit that detects the internal resistance value of the power storage unit, and a capacity detection unit that detects the capacity of the power storage unit.
  • the deterioration determination unit is configured to determine whether the power storage unit is in a deteriorated state based on the temperature detected by the temperature detection unit, the internal resistance value detected by the internal resistance value detection unit, and the capacity of the power storage unit detected by the capacity detection unit. It may be determined whether or not there is.
  • the deterioration determination unit includes the temperature detected by the temperature detection unit, the internal resistance value detected by the internal resistance value detection unit, and the first information that defines the temperature and the rate of change of the internal resistance value in association with each other.
  • a first conversion value obtained by converting the internal resistance value detected by the internal resistance value detection unit to a value at the specified temperature is detected, and the temperature detected by the temperature detection unit and the capacitance detected by the capacitance detection unit
  • the limit value of the internal resistance determined by the third information is specified when the second conversion value is a capacitance, When one conversion value is larger than the limit value of the internal resistance, it may function to determine that the deterioration has occurred.
  • the control device may include a discharge circuit that performs a discharge operation in which a discharge current flows from the power storage unit to the load and a blocking operation that blocks the discharge current.
  • the control unit may function to cause the discharge circuit to perform a discharge operation when the power supply from the power supply unit is in an abnormal state where the power supply is reduced or cut off.
  • This control device can cause the discharge circuit to perform a discharge operation when the power supply unit is in a predetermined failure state, and can use the power storage unit as a backup power supply.
  • the power storage unit is continuously used after it is determined to be in a deteriorated state by the deterioration determination unit, and the power storage unit is used as a backup power source when the power supply from the power supply unit is reduced or shut off Therefore, the required power is easily supplied due to the effect of increasing the charging voltage.
  • An in-vehicle power supply system 100 (hereinafter also referred to as a power supply system 100) shown in FIG. 1 includes an in-vehicle power supply unit 91 (hereinafter also referred to as a power supply unit 91) that functions as a main power supply unit and an in-vehicle power supply unit that functions as a backup power supply.
  • Power storage unit 92 (hereinafter also referred to as power storage unit 92) and on-vehicle power supply system control device 2 (hereinafter also referred to as control device 2), and is configured as a system capable of supplying power to load 94.
  • the load 94 is illustrated as an electric power supply target.
  • the load 94 includes various electrical components such as a shift-by-wire control system and an electronically controlled brake system, and the type and number thereof are not limited. .
  • the power supply unit 91 is a power supply unit mounted on the vehicle and functions as a main power supply for supplying power to various objects.
  • the power supply unit 91 is configured as a known in-vehicle battery such as a lead battery, for example.
  • the power supply unit 91 has a high potential side terminal electrically connected to the wiring unit 81 and applies a predetermined output voltage to the wiring unit 81. In FIG. 1, fuses, ignition switches and the like are omitted.
  • the power storage unit 92 is configured by known power storage means such as an electric double layer capacitor (EDLC).
  • the power storage unit 92 is electrically connected to the charging circuit 3A and the discharging circuit 3B via the conductive path 9, and is charged by the charging circuit 3A and discharged by the discharging circuit 3B.
  • the power storage unit 92 applies an output voltage corresponding to the degree of charge to the conductive path 9.
  • the power storage unit 92 functions as a backup power source and becomes a power supply source when power supply from at least the power supply unit 91 is interrupted.
  • the on-vehicle power supply device 1 (hereinafter also referred to as the power supply device 1) is configured by the power storage unit 92 and the control device 2 described later.
  • the output voltage of the power supply unit 91 is applied to the wiring unit 81 serving as a power line. Electric power is supplied to the electrical components.
  • “when the power supply from the power supply unit 91 is in a normal state in which the power supply has not decreased” refers to a time when the output voltage of the power supply unit 91 exceeds a predetermined value, and specifically, is detected by the control circuit 10. This is when the voltage of the wiring part 81 exceeds a predetermined value.
  • “when the power supply from the power supply unit 91 is in an abnormal state where the power supply is reduced or cut off” is when the output voltage of the power supply unit 91 is equal to or lower than a predetermined value. This is when the voltage of the wiring part 81 to be performed is not more than a predetermined value.
  • the control device 2 includes a charging / discharging circuit 3 including a charging circuit 3A and a discharging circuit 3B, a control circuit 10, a current detection unit 22, a voltage detection unit 24, a temperature detection unit 26, and the like.
  • the charging circuit 3 ⁇ / b> A is a circuit that performs a charging operation for charging the power storage unit 92 based on power supply from the power supply unit 91.
  • the charging circuit 3 ⁇ / b> A is configured as a known charging circuit such as a DCDC converter and is controlled by the control circuit 10. Make up the configuration.
  • Control circuit 10 performs charging control so as to give charging circuit 3 ⁇ / b> A a charging instruction signal for instructing charging of power storage unit 92 or a charging stop signal for instructing charging stop of power storage unit 92.
  • the control circuit 10 causes the charging circuit 3A to start a charging operation when predetermined charging is started (for example, when an ignition switch is turned on), and the charging target in which the output voltage (charging voltage) of the power storage unit 92 is set.
  • a charging instruction signal is given to the charging circuit 3A until the voltage (first target voltage Vf or second target voltage Vg) is reached.
  • the charging circuit 3 ⁇ / b> A performs a voltage conversion operation of increasing or decreasing the power supply voltage input via the wiring unit 81 when the charging instruction signal is given from the control circuit 10, and the converted voltage is stored in the power storage unit 92. Is applied to the conductive path 9 connected to.
  • the charging stop signal is given from the control circuit 10 to the charging circuit 3A, the charging circuit 3A does not perform the charging operation, and at this time, the wiring unit 81 and the power storage unit 92 are made non-conductive.
  • the discharge circuit 3B is configured as a known discharge circuit such as a DCDC converter, and is configured to be controlled by the control circuit 10.
  • the discharge circuit 3B is given a discharge instruction signal for instructing discharge of the power storage unit 92 or a discharge stop signal for instructing to stop discharge of the power storage unit 92 by the control circuit 10, and a discharge current is supplied from the power storage unit 92 to the load 94.
  • a discharging operation to flow and a blocking operation to block the discharge current are performed.
  • the discharge circuit 3B When the discharge instruction signal is given from the control circuit 10, the discharge circuit 3B performs a step-up operation or a step-down operation using the voltage of the conductive path 9 to which the output voltage of the power storage unit 92 is applied as an input voltage, and outputs the conductive A discharge operation (specifically, a discharge operation in which a target voltage instructed by the control circuit 10 is applied to the conductive path 8) is performed so as to apply a target voltage set to the path 8.
  • the discharge stop signal is given from the control circuit 10
  • the discharge circuit 3 ⁇ / b> B stops such a discharge operation and performs a shut-off operation so that the conductive path 8 and the power storage unit 92 are not conductive. .
  • the discharge circuit 3B Since the output-side conductive path 8 connected to the discharge circuit 3B is connected to a conductive path (wiring section 81) electrically connected to the load 94, the discharge circuit 3B is discharged when the discharge operation is performed.
  • the output current (discharge current) output from the circuit 3B can be supplied to the load 94.
  • the current detection unit 22 is configured as a known current detection circuit, and generates a detection value indicating the current flowing through the conductive path 9. Specifically, for example, a resistor that is interposed in the conductive path 9 and an amplifier that amplifies the voltage across the resistor, and a signal obtained by amplifying the voltage across the resistor is used as an analog voltage indicating a current flowing through the conductive path 9. A value is given to the control circuit 10.
  • the voltage detection unit 24 is a circuit that detects a charging voltage of the power storage unit 92 (an output voltage applied to the conductive path 9 by the power storage unit 92), and is configured by a known voltage detection circuit.
  • the voltage detection unit 24 is configured by, for example, a known voltage dividing circuit, divides the voltage applied to the conductive path 9 by a predetermined voltage dividing ratio, and inputs the divided voltage to the control circuit 10.
  • the detection value input from the voltage detection unit 24 to the control circuit 10 is a value that can specify the voltage applied to the conductive path 9 (a value that can specify the output voltage of the power storage unit 92).
  • the voltage applied to the conductive path 9 is grasped by the value input from the detection unit 24.
  • the configuration of the voltage detection unit 24 is not limited to this example, and may be a circuit that inputs the voltage of the conductive path 9 to the control circuit 10 as it is, for example.
  • the temperature detection unit 26 is configured by a known temperature sensor such as a thermistor and functions to detect the temperature of the power storage unit 92.
  • the temperature detection unit 26 is configured to input a voltage value indicating the temperature at the position where the temperature detection unit 26 is disposed to the control circuit 10.
  • the temperature detection unit 26 is fixed, for example, in contact with the surface portion of the power storage unit 92, and outputs a value indicating the temperature (outside surface temperature) of the surface portion of the power storage unit 92 as a detection value.
  • the temperature detection unit 26 may be mounted in the vicinity of the power storage unit 92 on the substrate on which the power storage unit 92 is mounted. Further, the temperature detection unit 26 may be disposed in the vicinity of the power storage unit 92 and may not be in contact with the power storage unit 92.
  • the control circuit 10 is configured as a microcomputer, for example, and includes a CPU, a memory such as a ROM or a RAM, an AD converter, and the like.
  • the control circuit 10 can operate with the power from the power storage unit 92 even when the power supply from the power supply unit 91 is interrupted.
  • a value indicating the voltage of the wiring unit 81 (that is, the output voltage value of the power supply unit 91) is input to the control circuit 10, and the control circuit 10 can continuously monitor the voltage of the wiring unit 81. .
  • the control circuit 10 detects the output voltage of the power supply unit 91, as shown in FIG. 1, the wiring unit 81 and the control circuit 10 are electrically connected by a conductive path, and the voltage of the wiring unit 81 is directly controlled by the control circuit. 10 or a voltage obtained by dividing the voltage of the wiring unit 81 by a voltage dividing circuit or the like may be input to the control circuit 10.
  • FIG. 2 conceptually shows each function executed by the control circuit 10, and the control circuit 10 functions as a control unit 11 that causes at least the charging circuit 3A and the discharging circuit 3B to perform a charging operation or a discharging operation. And a function as a deterioration determination unit 13 that determines whether or not the power storage unit is in a predetermined deterioration state, and a deterioration signal is transmitted to the outside when the deterioration determination unit 13 determines that it is in a deterioration state.
  • each function as the control unit 11, the transmission unit 12, the deterioration determination unit 13, the internal resistance value detection unit 15, and the capacitance detection unit 16 may be realized by software processing by an information processing device, or may be realized by a hardware circuit. May be.
  • each function as the control unit 11, the transmission unit 12, the deterioration determination unit 13, the internal resistance value detection unit 15, and the capacitance detection unit 16 may be realized by a common device, and each of the individual devices It may be realized by.
  • the control circuit 10 shown in FIG. 1 includes an ignition on signal (hereinafter referred to as an IG on signal) indicating that a start switch (specifically, an ignition switch) for starting a vehicle power source from an external device (not shown) is in an on state. Or an ignition on signal (hereinafter also referred to as an IG off signal) indicating that the ignition switch is in an off state.
  • an ignition on signal hereinafter also referred to as an IG off signal
  • the control circuit 10 performs discharge control for reducing the charging voltage (output voltage) of the power storage unit 92 to the target voltage value Voff during the off operation.
  • the target voltage value Voff during the off operation is lower than the target voltage values (first target voltage Vf and second target voltage Vg) set when the ignition switch is in the on state.
  • the control circuit 10 performs the discharge control immediately after that and gives a discharge instruction to the discharge circuit 3B in a state in which the charging operation of the charging circuit 3A is stopped. Then, the discharge circuit 3B is caused to perform a discharge operation. Then, the discharging operation is continued until the charging voltage of power storage unit 92 reaches target voltage value Voff during the off operation. When the charging voltage of the power storage unit 92 reaches the target voltage value Voff or less during the off operation, both the charging operation of the charging circuit 3A and the discharging operation of the discharging circuit 3B are stopped.
  • the ignition switch is switched from the off state to the on state, that is, the signal input to the control circuit 10 is turned off.
  • the control circuit 10 starts charging control of the power storage unit 92.
  • the control circuit 10 performs the charging control of the power storage unit 92 in the flow as shown in FIG. 3, for example.
  • the control circuit 10 performs the process of step S ⁇ b> 1 and starts charging the power storage unit 92.
  • the control unit 11 starts outputting a charging instruction signal to the charging circuit 3A, and causes the charging circuit 3A to start a continuous charging operation.
  • the control circuit 10 performs deterioration determination in step S2.
  • the control circuit 10 performs the deterioration determination in step S2 in the flow as shown in FIG.
  • the internal resistance value Rb is obtained from the formula Ia.
  • the deterioration determination unit 13 performs the process of step S22, the temperature Ta detected by the temperature detection unit 26, the internal resistance value Rb detected by the internal resistance value detection unit 15, the temperature and the internal resistance.
  • a first conversion value Rc obtained by converting the internal resistance value Rb detected by the internal resistance value detection unit 15 into a value at a specified temperature is detected based on the first information determined in association with the change rate of the value. .
  • the first information determined by associating the internal resistance change rate at each temperature is stored in advance in a memory (not shown) in the control circuit 10 as table data, an arithmetic expression, etc.
  • the specified temperature reference value
  • the internal resistance value Ra at the specified temperature is stored in advance in a memory or the like (not shown).
  • the deterioration determination unit 13 detects the current capacity Cb in step S23.
  • the deterioration determination unit 13 checks the temperature Tb detected by the temperature detection unit 26 at the start time tc (see FIG. 5) in step S23. Further, an average current Ib from time tc to time td (a time after a fixed time has elapsed from time tc) is calculated. For example, the charging current is detected n times every predetermined short time from time tc to time td, and the value obtained by dividing the integrated value of the charging currents of n times by n is defined as the average current Ib.
  • the deterioration determination unit 13 performs the process of step S24, the temperature detected by the temperature detection unit 26 (specifically, the average value Td), and the capacitance Cb detected by the capacitance detection unit 16. Then, based on the second information determined by associating the temperature and the rate of change of the capacity, a second conversion value Cc obtained by converting the capacity Cb detected by the capacity detection unit 16 to a value at the specified temperature is detected. As shown in FIG. 7, the second information determined in association with the capacity change rate at each temperature is stored in advance in a memory (not shown) in the control circuit 10 as table data, an arithmetic expression, etc.
  • the second conversion value Cc is obtained from the second information shown in FIG. 7 based on the average value Td and the capacitance Cb.
  • the second conversion value Cc may be obtained based on the temperature Tb and the capacitance Cb. You may obtain
  • the deterioration determination unit 13 performs the process of step S25, and converts the second conversion value Cc obtained in step S24 into the third information determined by associating the capacitance and the limit value of the internal resistance. Based on this, the limit value Rd of the internal resistance determined by the third information when the second conversion value Cc is a capacitance is specified. As shown in FIG. 8, the third information determined by associating the limit value Rd of the internal resistance for each capacitor is stored in advance in a memory (not shown) in the control circuit 10 as table data, an arithmetic expression, or the like. The deterioration determination unit 13 specifies the limit value Rd for the capacity Cc based on the second conversion value Cc obtained in step S24 and the third information as shown in FIG.
  • step S26 the deterioration determination unit 13 performs the process of step S26, compares the limit value Rd obtained in step S25 with the first conversion value Rc obtained in step S22, and the first conversion value Rc is If it is larger than the limit value Rd of the internal resistance obtained in step S25, it is determined that the battery is in a deteriorated state (step S27). Otherwise, it is determined that it is not in a deteriorated state (step S28).
  • step S ⁇ b> 2 of FIG. 3 when it is determined in this deterioration determination that the power storage unit 92 is not in the deteriorated state, the control unit 11 charges in step S ⁇ b> 4.
  • the target voltage is set to the first target voltage Vf.
  • the control circuit 10 transmits a predetermined deterioration signal to the outside in step S5.
  • the transmission destination of the deterioration signal is not particularly limited, and examples thereof include an external ECU.
  • the control part 11 sets a charge target voltage to the 2nd target voltage Vg in step S6 after step S5.
  • the second target voltage Vg is, for example, a value that is larger than the first target voltage Vf by a constant value X.
  • the control unit 11 sets the charging target voltage to the first target voltage Vf when the deterioration determination unit 13 determines that the power storage unit 92 is not in the deteriorated state, and determines that the power storage unit 92 is in the deteriorated state.
  • the charging target voltage is set to a second target voltage Vg that is larger than the first target voltage Vf.
  • the control unit 11 Based on the charging voltage (output voltage of the power storage unit 92) detected by the voltage detection unit 24, the control unit 11 performs a charging operation on the charging circuit 3A so that the charging voltage of the power storage unit 92 reaches the charging target voltage. Make it. Specifically, after step S4 or step S6, the control unit 11 determines whether or not the charging voltage detected by the voltage detection unit 24 has reached the charging target voltage set in step S4 or step S6. If not reached, the process proceeds to No to continue charging, and if reached, the process proceeds to Yes to end the charging (step S8).
  • the power supply from the power supply unit 91 when the power supply from the power supply unit 91 is normal, the output voltage of the power supply unit 91 is applied to the wiring unit 81 serving as a power line. Electric power is supplied to the electrical components.
  • “when the power supply from the power supply unit 91 is normal” is when the output voltage applied to the wiring unit 81 by the power supply unit 91 exceeds a predetermined value.
  • a voltage V1 for example, the voltage value of the wiring unit 81 itself or the wiring unit 81
  • a voltage detection circuit not shown
  • the control circuit 10 has a detection value V1 (a value indicating a voltage applied to the wiring unit 81) input from the voltage detection circuit that is less than a threshold value. It is determined whether or not the voltage of the wiring part 81 is less than a predetermined value.
  • the predetermined value is a value that is smaller than the output voltage when the power supply unit 91 is fully charged and larger than 0, and is set to a value that is slightly larger than 0 V, for example.
  • the control circuit 10 (specifically, the control unit 11) shown in FIG. 1 continues the voltage of the wiring unit 81 to which the output voltage from the power supply unit 91 is applied after the ignition switch (start switch) is switched on. Monitor. And the control part 11 repeats determination whether the voltage of the wiring part 81 is less than a predetermined value, and when it determines with it being less than a predetermined value, it keeps charging circuit 3A in a stop state, and it becomes discharge circuit 3B. Let the discharge operation. In this configuration, the state in which the voltage of the wiring unit 81 is less than the predetermined value corresponds to an example of “an abnormal state in which the power supply from the power supply unit 91 is reduced or cut off”. In this way, the control unit 11 functions to cause the discharge circuit 3B to perform a discharge operation in the “abnormal state where power supply from the power supply unit 91 is reduced or cut off”.
  • the power supply device 1 and the control device 2 shown in FIG. 1 can determine whether or not the power storage unit 92 is in a deteriorated state by the deterioration determining unit 13. And when it determines with the electrical storage part 92 being in a degradation state, the degradation signal can be transmitted outside by the transmission part 12, and it can alert
  • the control device 2 includes a temperature detection unit 26 that detects the temperature of the power storage unit 92, an internal resistance value detection unit 15 that detects the internal resistance value of the power storage unit 92, and a capacity detection unit 16 that detects the capacity of the power storage unit 92.
  • the deterioration determination unit 13 is first information that is determined by associating the temperature detected by the temperature detection unit 26, the internal resistance value detected by the internal resistance value detection unit 15, and the change rate of the temperature and the internal resistance value. Based on the above, a first conversion value obtained by converting the internal resistance value detected by the internal resistance value detection unit 15 into a value at the specified temperature is detected.
  • the detection by the capacitance detection unit 16 based on the temperature detected by the temperature detection unit 26, the capacitance detected by the capacitance detection unit 16, and the second information determined by associating the change rate of the temperature and the capacity A second conversion value obtained by converting the measured capacity into a value at the specified temperature is detected. Further, based on the second conversion value and the third information determined by associating the capacitance and the limit value of the internal resistance, the limit value of the internal resistance determined by the third information when the second conversion value is a capacitance. Is identified. And it determines with deterioration, when a 1st conversion value is larger than the limit value of internal resistance.
  • the control device 2 includes a discharge circuit 3B that performs a discharge operation in which a discharge current flows from the power storage unit 92 to the load 94 and a blocking operation that blocks the discharge current.
  • the control unit 11 functions to cause the discharge circuit 3B to perform a discharge operation when the power supply unit 91 is in a predetermined failure state.
  • the control device 2 can cause the discharge circuit 3B to perform a discharge operation when the power supply unit 91 is in a predetermined failure state, and can use the power storage unit 92 as a backup power supply.
  • the power storage unit 92 is continuously used after the deterioration determination unit 13 determines that the battery is in the deteriorated state, and the power storage unit 92 is used as a backup power source when the power supply unit 91 is in a predetermined failure state.
  • the required power is easily supplied by the effect of raising the charging voltage.
  • a lead battery is used for the power supply unit 91 as the main power supply unit.
  • the present invention is not limited to this configuration, and the lead battery is not limited to this configuration, and in any example in which the above embodiment or the above embodiment is modified.
  • Other known storage batteries other than those may be used.
  • the number of power supply means configuring the power supply unit 91 is not limited to one, and may be configured by a plurality of power supply means.
  • an electric double layer capacitor (EDLC) is used for the power storage unit 92.
  • the present invention is not limited to this configuration, and the power storage unit is not limited to this configuration.
  • Other power storage means such as a lithium ion battery, a lithium ion capacitor, or a nickel metal hydride rechargeable battery may be used for 92.
  • the number of power storage units constituting the power storage unit 92 is not limited to one, and may be configured by a plurality of power storage units.
  • the charging circuit 3A is configured as a DCDC converter
  • the above-described embodiment or any of the modified embodiments is not limited to this example.
  • a simple charging circuit can be used.
  • the discharge circuit 3B is configured as a DCDC converter
  • any of the above-described embodiments or the above-described embodiments is not limited to this example, and various publicly known various types can be used.
  • a simple discharge circuit can be used.
  • control unit the transmission unit, the deterioration determination unit, the internal resistance value detection unit, and the capacitance detection unit are all realized by the control circuit 10, but any of the above-described embodiment or the above-described embodiment has been changed. In the example, any one or a plurality of functions, or each function may be realized by separate control circuits.
  • the deterioration determination unit performs SOH (State Of Health) by various known methods. And this SOH may be used as the degree of deterioration. And when SOH is below a predetermined value, you may determine with a deterioration state.
  • the power storage unit is based on the temperature detected by the temperature detection unit, the internal resistance value detected by the internal resistance value detection unit, and the capacity of the power storage unit 92 detected by the capacity detection unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un dispositif de commande : qui peut être utilisé dans un système d'alimentation électrique embarqué qui utilise une unité de stockage d'énergie pour fournir de l'énergie au moins lorsqu'une unité d'alimentation électrique est arrêtée ; et qui facilite la fourniture d'énergie nécessaire à partir de l'unité de stockage d'énergie même si l'unité de stockage d'énergie reste en utilisation après qu'il a été déterminé que l'unité de stockage d'énergie est dans un état détérioré. Le dispositif de commande (2) comprend : une unité de commande (11) qui amène un circuit de charge (3A) à effectuer une opération de charge de telle sorte que la tension de charge d'une unité de stockage d'énergie (92) atteint une tension de charge cible ; et une unité de détermination de détérioration (13) qui détermine si l'unité de stockage d'énergie (92) est ou non dans un état détérioré prescrit. L'unité de commande (11) : règle la tension de charge cible à une première tension cible Vf lorsque l'unité de détermination de détérioration (13) a déterminé que l'unité de stockage d'énergie (92) n'est pas dans l'état détérioré ; et règle la tension de charge cible à une seconde tension cible Vg qui est supérieure à la première tension cible Vf lorsqu'il a été déterminé que l'unité de stockage d'énergie (92) est dans l'état détérioré.
PCT/JP2018/008951 2017-03-29 2018-03-08 Dispositif de commande pour système d'alimentation électrique embarqué, et système d'alimentation électrique embarqué WO2018180333A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017064573A JP2018170821A (ja) 2017-03-29 2017-03-29 車載用電源システムの制御装置及び車載用電源装置
JP2017-064573 2017-03-29

Publications (1)

Publication Number Publication Date
WO2018180333A1 true WO2018180333A1 (fr) 2018-10-04

Family

ID=63675276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/008951 WO2018180333A1 (fr) 2017-03-29 2018-03-08 Dispositif de commande pour système d'alimentation électrique embarqué, et système d'alimentation électrique embarqué

Country Status (2)

Country Link
JP (1) JP2018170821A (fr)
WO (1) WO2018180333A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112034279A (zh) * 2020-07-22 2020-12-04 惠州市德赛西威汽车电子股份有限公司 一种常供电测试装置、系统及方法
CN113169582A (zh) * 2018-12-03 2021-07-23 株式会社自动网络技术研究所 车载用的备用电源控制装置及车载用的备用电源装置
CN114643901A (zh) * 2020-12-21 2022-06-21 矢崎总业株式会社 备用电池控制模块和备用电池控制系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7017138B2 (ja) * 2018-12-03 2022-02-08 株式会社オートネットワーク技術研究所 車載用のバックアップ電源制御装置、及び車載用のバックアップ電源
JP7396385B2 (ja) * 2022-03-23 2023-12-12 いすゞ自動車株式会社 バッテリ管理装置
JP7639988B2 (ja) * 2022-03-31 2025-03-05 株式会社オートネットワーク技術研究所 電源制御装置
WO2024202170A1 (fr) * 2023-03-30 2024-10-03 パナソニックＩｐマネジメント株式会社 Système d'alimentation électrique de secours et procédé de commande de système d'alimentation électrique de secours
JP2025072907A (ja) * 2023-10-25 2025-05-12 住友電装株式会社 車載用キャパシタ装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105641A (ja) * 2004-10-01 2006-04-20 Shin Kobe Electric Mach Co Ltd バックアップ電源システム
JP2010190707A (ja) * 2009-02-18 2010-09-02 Panasonic Corp 蓄電装置
WO2012043744A1 (fr) * 2010-09-29 2012-04-05 三洋電機株式会社 Dispositif de commande de charge
JP2012085452A (ja) * 2010-10-12 2012-04-26 Honda Motor Co Ltd リチウムイオン電池の制御装置
WO2015194327A1 (fr) * 2014-06-17 2015-12-23 株式会社豊田自動織機 Dispositif d'alimentation électrique pour véhicule
JP2016096696A (ja) * 2014-11-17 2016-05-26 レノボ・シンガポール・プライベート・リミテッド 二次電池の寿命期間を延長するバックアップ・システム、管理方法および情報処理装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006105641A (ja) * 2004-10-01 2006-04-20 Shin Kobe Electric Mach Co Ltd バックアップ電源システム
JP2010190707A (ja) * 2009-02-18 2010-09-02 Panasonic Corp 蓄電装置
WO2012043744A1 (fr) * 2010-09-29 2012-04-05 三洋電機株式会社 Dispositif de commande de charge
JP2012085452A (ja) * 2010-10-12 2012-04-26 Honda Motor Co Ltd リチウムイオン電池の制御装置
WO2015194327A1 (fr) * 2014-06-17 2015-12-23 株式会社豊田自動織機 Dispositif d'alimentation électrique pour véhicule
JP2016096696A (ja) * 2014-11-17 2016-05-26 レノボ・シンガポール・プライベート・リミテッド 二次電池の寿命期間を延長するバックアップ・システム、管理方法および情報処理装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113169582A (zh) * 2018-12-03 2021-07-23 株式会社自动网络技术研究所 车载用的备用电源控制装置及车载用的备用电源装置
CN112034279A (zh) * 2020-07-22 2020-12-04 惠州市德赛西威汽车电子股份有限公司 一种常供电测试装置、系统及方法
CN114643901A (zh) * 2020-12-21 2022-06-21 矢崎总业株式会社 备用电池控制模块和备用电池控制系统
US20220200311A1 (en) * 2020-12-21 2022-06-23 Yazaki Corporation Backup Battery Control Module and Backup Battery Control System
EP4020753A1 (fr) * 2020-12-21 2022-06-29 Yazaki Corporation Module de commande de batterie de secours et système de commande de batterie de secours
US11721998B2 (en) 2020-12-21 2023-08-08 Yazaki Corporation Backup battery control module and backup battery control system
CN114643901B (zh) * 2020-12-21 2024-04-16 矢崎总业株式会社 备用电池控制模块和备用电池控制系统

Also Published As

Publication number Publication date
JP2018170821A (ja) 2018-11-01

Similar Documents

Publication Publication Date Title
WO2018180333A1 (fr) Dispositif de commande pour système d'alimentation électrique embarqué, et système d'alimentation électrique embarqué
JP4807058B2 (ja) 車両用電源装置
JP4782663B2 (ja) 充電システム、充電装置、及び電池パック
CN108367724B (zh) 利用诊断法的分立式蓄能器
JP4873106B2 (ja) 電源装置
JP6673138B2 (ja) 車両用のバックアップ装置
US20140147713A1 (en) Battery monitoring apparatus
JP7127412B2 (ja) 車載用のバックアップ電源制御装置及び車載用のバックアップ電源装置
JP2020022295A5 (fr)
CN112513652A (zh) 内部电阻检测装置及电源装置
US9527396B2 (en) Abnormality detection device
WO2017068874A1 (fr) Dispositif de bloc d'alimentation embarqué
JP6376422B2 (ja) 充放電装置
JP6635298B2 (ja) 充放電装置及び電源装置
JP6549055B2 (ja) 電池パック
JP4670301B2 (ja) バックアップ電源システム
JP6322123B2 (ja) 電流制限回路
WO2017057211A1 (fr) Dispositif de source d'alimentation embarqué
JP2018164323A (ja) 車載用の制御装置及び車載用電源装置
JP7558234B2 (ja) 車載用のバックアップ制御装置
JP5277819B2 (ja) 蓄電装置
JP2014106145A (ja) 電池監視装置
JP2009092627A (ja) 蓄電装置
WO2023170741A1 (fr) Dispositif de secours de véhicule

Legal Events

Date Code Title Description
DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18776464

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18776464

Country of ref document: EP

Kind code of ref document: A1