WO2018056119A1 - 車載用蓄電部の制御装置及び車載用蓄電装置 - Google Patents

車載用蓄電部の制御装置及び車載用蓄電装置 Download PDF

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Publication number
WO2018056119A1
WO2018056119A1 PCT/JP2017/032889 JP2017032889W WO2018056119A1 WO 2018056119 A1 WO2018056119 A1 WO 2018056119A1 JP 2017032889 W JP2017032889 W JP 2017032889W WO 2018056119 A1 WO2018056119 A1 WO 2018056119A1
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WO
WIPO (PCT)
Prior art keywords
unit
power storage
storage unit
charging
path
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/032889
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English (en)
French (fr)
Japanese (ja)
Inventor
広世 前川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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 Sumitomo Wiring Systems Ltd, AutoNetworks Technologies Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to CN201780054030.2A priority Critical patent/CN109643832B/zh
Priority to US16/334,810 priority patent/US11186157B2/en
Publication of WO2018056119A1 publication Critical patent/WO2018056119A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/04—Arrangement of batteries
    • 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
    • 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
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/977—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/529—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/11—Electric energy storages
    • B60Y2400/114—Super-capacities
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a control device for an in-vehicle power storage unit and an in-vehicle power storage device.
  • the present invention has been made based on the above-described circumstances, and an object of the present invention is to realize a control device or a power storage device that easily raises the temperature of an in-vehicle power storage unit while suppressing an increase in size of the configuration.
  • a control device for an in-vehicle power storage unit that is an example of the present invention, A holding unit for holding an in-vehicle power storage unit; A substrate portion having one substrate surface disposed on the holding portion side; A circuit unit that performs at least one of a charging operation of flowing a charging current to the power storage unit or a discharging operation of flowing a discharging current from the power storage unit; Mounted on the one substrate surface of the substrate unit and disposed in a region between the substrate unit and the power storage unit, the current corresponding to the circuit unit performing a predetermined charging operation or a predetermined discharging operation And a heat-generating component that emits heat to at least the holding portion side, Have
  • the control device has a heat generating component mounted on the board.
  • the heat generating component has a configuration in which a current flows and releases heat to at least the holding unit side in response to the circuit unit performing a predetermined charging operation or a predetermined discharging operation. Therefore, this control device can transmit the heat generated by the heat-generating component during charging or discharging of the power storage unit to the power storage unit held by the holding unit, thereby increasing the temperature of the power storage unit.
  • the heat generating component is mounted on one of the substrate surfaces of the substrate unit and disposed in the region between the substrate unit and the power storage unit, heat generated by the heat generating component is easily transmitted efficiently to the power storage unit, The effect of increasing the temperature of the power storage unit can be further enhanced.
  • FIG. 1 is a block diagram illustrating an in-vehicle power supply system including an in-vehicle power storage device according to a first embodiment. It is a perspective view which shows simply the appearance of the in-vehicle power storage device of Example 1.
  • FIG. 2 is a circuit diagram specifically illustrating the in-vehicle power supply system of FIG. 1. It is a disassembled perspective view which decomposes
  • FIG. It is a perspective view which shows simply the state which abbreviate
  • FIG. 2 is a circuit diagram specifically illustrating the in-vehicle power supply system of FIG. 1. It is a disassembled perspective view which decomposes
  • FIG. It
  • FIG. 10 is a flowchart illustrating the flow of charge control performed by the in-vehicle power storage device according to the third embodiment. It is a circuit diagram which shows roughly the vehicle-mounted power supply system of another Example.
  • the heat generating component is arranged in a region between the substrate unit and the power storage unit.
  • the arrangement of the heat generating component is that “the heat generating component directly contacts the power storage unit”.
  • “Configuration” “A configuration in which the heat generating component contacts another member and the other member contacts the power storage unit (ie, a configuration in which the heat generating component indirectly contacts the power storage unit through the other member)” “A heat generating component is in the power storage unit Any configuration of “facing the heat-generating component without contacting the heat-generating component” may be employed.
  • the “configuration in which the heat generating component faces the heat generating component without contacting the power storage unit” may be “the configuration in which no other member is interposed between the heat generating component and the power storage unit”. It may be a configuration in which other members are interposed therebetween. When another member is interposed between the heat generating component and the power storage unit, the other member may or may not be in contact with the power storage unit, or may not be in contact with the heat generating component. Also good.
  • the control device for the in-vehicle power storage unit may include a control unit that controls at least a charging operation performed by the circuit unit.
  • the circuit unit includes a charging path that serves as a path for flowing a charging current based on electric power from an in-vehicle power supply unit to the power storage unit, and a charging path resistance that is provided in the charging path and generates heat in response to the charging current flowing through the charging path.
  • a charging circuit unit including a charging path switching unit that switches the charging path to a state in which the charging current flows and a state in which the charging current does not flow.
  • At least the charging path resistance unit may function as a heat generating component.
  • the control unit may have a function of controlling a charging operation performed by the charging circuit unit by controlling at least a switching operation of the charging path switching unit.
  • the control device configured as described above causes the resistance unit (charging path resistance unit) provided in the charging path to function as a heat generating component when supplying the charging current to the power storage unit by the charging circuit unit.
  • the temperature of the power storage unit can be efficiently increased using the heat generated in the unit.
  • the circuit unit is provided in a second charging path and a second charging path configured as a path different from the charging path while being configured as a path for flowing a charging current based on electric power from the in-vehicle power supply unit to the power storage unit. And a second resistance unit disposed at a position outside the space sandwiched between the substrate unit and the power storage unit, and a second switching unit that switches the second charging path between a state where charging current flows and a state where charging current does not flow
  • the 2nd charging circuit part containing these may be provided.
  • the control unit may be configured to control a charging operation performed by the charging circuit unit and the second charging circuit unit by controlling a switching operation performed by at least the charging path switching unit and the second switching unit.
  • the control device configured as described above includes a circuit (charging circuit unit) that supplies a charging current via a resistance unit (charging path resistance unit) provided between the substrate unit and the power storage unit, and the substrate unit and the power storage unit.
  • a circuit charging circuit unit
  • the charging circuit unit it is possible to perform a charging operation in which heat generated in the resistance unit (charging path resistance unit) is easily transmitted to the power storage unit.
  • heat generated in the resistance unit (second resistance unit) is supplied to the power storage unit. Charging operation that is difficult to transmit is possible.
  • the control device for the in-vehicle power storage unit may include a temperature detection unit that detects the temperature of the power storage unit. When charging the power storage unit when the temperature detected by the temperature detection unit is equal to or higher than a predetermined value, the control unit sets the charging circuit unit to a state where no charging current flows and sets the second charging circuit unit to a state where the charging current flows.
  • the charging path switching unit and the second switching unit may have a function of controlling the switching operation.
  • the control device configured in this way can suppress the heat generation of the resistance unit (charging path resistance unit) and the second charging circuit unit
  • the charging current can be supplied in such a manner that heat is not easily transmitted to the power storage unit. Therefore, when the temperature of the power storage unit increases to some extent, it is possible to suppress the temperature of the power storage unit from becoming too high due to the influence of heat generated during charging.
  • the control device for the in-vehicle power storage unit may include a control unit that controls at least a discharge operation performed by the circuit unit.
  • the circuit unit is electrically connected to the power storage unit and serves as a path for a discharge current from the power storage unit, and a discharge path resistance that is provided in the discharge path and generates heat in response to the discharge current flowing through the discharge path.
  • a discharge circuit unit including a discharge path switching unit that switches the discharge path between a state in which a discharge current from the power storage unit flows and a state in which a discharge current from the power storage unit does not flow.
  • the control unit may have a function of controlling a discharge operation performed by the discharge circuit unit by controlling at least a switching operation performed by the discharge path switching unit.
  • the control device configured as described above operates the discharge circuit unit to cause a discharge current to flow from the power storage unit, so that the resistance unit (discharge path resistance unit) provided in the discharge path functions as a heat generating component. It is possible to efficiently increase the temperature of the power storage unit using heat generated in the path resistance unit.
  • a discharge path that is electrically connected to the power storage unit and serves as a path for a discharge current from the power storage unit, and a discharge path resistance that is provided in the discharge path and generates heat when the discharge current flows through the discharge path
  • a discharge circuit switching unit that includes a discharge path switching unit that switches the discharge path to a state in which a discharge current from the power storage unit flows and a state in which a discharge current from the power storage unit does not flow.
  • the discharge operation performed by the discharge circuit unit is controlled by controlling the switching operation performed by the discharge path switching unit, and the discharge circuit unit performs a discharge operation so that the discharge current flows through the discharge path when a predetermined condition is satisfied. And a function of repeating a control for causing the charging circuit unit to perform a charging operation so that a charging current flows through the charging path.
  • the control device configured as described above makes it possible to generate heat in the resistance unit and transmit heat to the power storage unit regardless of whether the charging current is supplied or the discharging current, and this is achieved by repeating the discharging operation and the charging operation. Heat transfer can be continued for a longer time.
  • the control unit controls the discharge circuit unit to perform a discharge operation so that the discharge current flows in the voltage range in which the output voltage of the power storage unit is equal to or higher than the predetermined voltage when the predetermined condition is satisfied,
  • the control for causing the charging circuit unit to perform the charging operation may be alternately repeated so that the charging current flows.
  • the control device configured as described above can continue the heat transfer to the power storage unit for a longer time.
  • the discharge operation is performed in a voltage range in which the output voltage of the power storage unit is equal to or higher than a predetermined voltage. Therefore, power should be supplied from the power storage unit during repeated charging and discharging for heat transfer. Even if a situation occurs, an output of a predetermined voltage or more can be quickly supplied.
  • the holding unit may be configured to fix the power storage unit and the substrate unit with one substrate surface of the substrate unit facing the outer peripheral side of the power storage unit.
  • the heat-emitting component may be arrange
  • the control device configured as described above can integrally fix the power storage unit and the substrate unit by the holding unit, and the mounting surface covered with the power storage unit in the integrated unit is efficiently used as the heat generating component placement region.
  • the power storage unit can be efficiently warmed by the heat-generating component while being utilized efficiently.
  • the holding unit may be provided in a region between one substrate surface of the substrate unit and the outer periphery of the power storage unit, and may include a support unit that supports the outer periphery of the power storage unit.
  • the support portion may be formed with an opening that extends from the surface on the power storage unit side of the support portion to the surface on the substrate unit side.
  • the heat generating component may be disposed at at least one of a position facing the opening region of the opening and a position where the heat generating component is inserted into the opening.
  • the control device configured as described above is configured to stably support the outer peripheral portion of the power storage unit by the support unit disposed between the one substrate surface of the substrate unit and the outer peripheral unit of the power storage unit, and to store power by the holding unit. And the substrate portion can be stably fixed.
  • the heat generating component is disposed at least one of the position facing the opening area of the opening and the position where the heat generating component is inserted into the opening. It can prevent that the heat which goes to the part side is interrupted by the support part. Therefore, it is possible to efficiently transfer the heat of the heat-generating component mounted on the board unit to the power storage unit while stabilizing the power storage unit.
  • a heat transfer member that contacts the heat generating component and the power storage unit may be provided.
  • the control device configured as described above can efficiently transfer the heat generated in the heat generating component to the power storage unit by the heat transfer member in contact with the heat generating component and the power storage unit, and more effectively increase the temperature of the power storage unit. Can be made.
  • the power storage unit may be arranged extending in a predetermined direction along one substrate surface.
  • a plurality of heat generating components arranged in a predetermined direction may be arranged to face the power storage unit.
  • the control device configured as described above can efficiently transmit the heat generated in the plurality of heat generating components to the power storage unit, and more efficiently uses the heat generated in the plurality of heat generating components to control the temperature of the power storage unit. Can be increased more effectively.
  • the in-vehicle power storage device may be configured to include a control device for the in-vehicle power storage unit having any of the above-described configurations and a power storage unit having one or a plurality of power storage units.
  • an in-vehicle power storage device that can achieve the same effects as the above-described in-vehicle power storage unit control device can be realized including the power storage unit.
  • the system 100 includes a battery 92 as a main power source and a power storage device 1 including a power storage unit 2 that functions as an auxiliary power source, and a load 94 ( It is configured as a power supply system that supplies power to the backup target).
  • the system 100 supplies power from the battery 92 to the load 94 when the power supply from the battery 92 is normal, and the power supply from the power storage unit 2 to the load 94 when the power supply from the battery 92 becomes abnormal. It is configured as a system that supplies power.
  • the case where the potential at a predetermined position of the power line 96 provided between the battery 92 and the load 94 becomes a certain value or more when the discharge operation of the output unit 30 is stopped is “when the power supply from the battery 92 is in a normal state” ”
  • the case where the potential at the predetermined position of the power line 96 is less than a certain value is described as an example when“ the power supply from the battery 92 is in an abnormal state ”.
  • the battery 92 is configured as a known in-vehicle battery such as a lead battery.
  • the battery 92 has a high potential side terminal electrically connected to the power line 96 and applies an output voltage of a predetermined value (for example, 12 V) to the power line 96.
  • a fuse or switch (not shown) is interposed in the middle of the power line 96.
  • the battery 92 is electrically connected to a generator (not shown) that is not shown, and can be charged by electric power from the generator.
  • the load 94 is configured as a known in-vehicle electric component.
  • the load 94 is a suitable example of an electrical component that is desired to maintain power supply even when power supply from the battery 92 is interrupted, such as an ECU or actuator in a shift-by-wire system, an ECU or actuator in an electronically controlled brake system, and the like. Other on-vehicle electrical components are also applicable.
  • the load 94 operates based on the power supply from the battery 92 in the normal state described above, and operates based on the power supply from the power storage unit 2 in the abnormal state described above.
  • the power storage device 1 has, for example, an appearance as shown in FIG. 2, and mainly includes a power storage unit 2 and a control device 5 that can control charging / discharging of the power storage unit 2, and has an integrated configuration. .
  • a portion obtained by removing the plurality of power storage units 3 from the power storage device 1 is the control device 5.
  • the power storage unit 2 is configured as a power storage unit group including a plurality of in-vehicle power storage units 3 (hereinafter also referred to as power storage units 3).
  • the power storage unit 3 is configured by known power storage means such as an electric double layer capacitor, for example, and the power storage unit 2 functions as a capacitor unit that generates a desired output by a plurality of capacitors. 2 and 3, the power storage unit 2 is configured such that a plurality of power storage units 3 are connected in series, and the terminal having the lowest potential in the entire power storage unit 2 is connected to the ground. The terminal is kept at a predetermined low potential (0 V).
  • the terminal having the highest potential in the entire power storage unit 2 is electrically connected to the input path (conductive path 32) to the output unit 30, and this terminal is a voltage corresponding to the charge amount of the power storage unit 2. Is applied.
  • each power storage unit 3 has a cylindrical shape, and has a longitudinal shape extending in a predetermined axial direction.
  • a pair of electrode portions 4 ⁇ / b> A and 4 ⁇ / b> B are provided at one end in the longitudinal direction (axial direction) of the power storage unit 3.
  • These electrode portions 4A and 4B extend from the end portion of the power storage unit 3, and the tip portions of the electrode portions 4A and 4B are fixed to one plate surface (substrate surface 7A) of the substrate portion 7.
  • the plurality of power storage units 3 are arranged in a predetermined first direction along the substrate surface 7 ⁇ / b> A of the substrate unit 7, and each power storage unit 3 is arranged in a second direction orthogonal to the first direction.
  • the first direction (alignment direction of the power storage units 3) is a predetermined direction parallel to the substrate surface 7A
  • the second direction direction in which each power storage unit 3 extends
  • the directions are orthogonal.
  • terminals of adjacent power storage units 3 are electrically connected by a wiring unit formed on the substrate surface 7A of the substrate unit 7, and are connected in series as shown in FIG. Connected.
  • the terminal on the high potential side where the potential becomes the highest is electrically connected to the conductive path 32 of the charge / discharge unit 8 described later, and is charged or discharged by the charge / discharge unit 8. Has been made.
  • the thickness direction of the substrate unit 7 is the vertical direction
  • the direction in which the power storage unit 3 extends (second direction) among the directions orthogonal to the vertical direction is the front-rear direction.
  • a direction perpendicular to the up-down direction and the front-rear direction (a first direction in which the plurality of power storage units 3 are arranged) is defined as a left-right direction.
  • the side on which the power storage unit 3 is arranged with respect to the substrate unit 7 is the upper side, and the opposite side is the lower side.
  • 1 and 2 includes a substrate unit 7, a holding unit 40, a charge / discharge unit 8, a control unit 20, and the like, and is configured as a device that can control charging and discharging of the power storage unit 2.
  • the substrate portion 7 is a plate-like body on which various components are mounted on the surface portion, and includes one or a plurality of insulating layers and a conductor layer formed on the surface portion or inside of the insulating layer.
  • the substrate unit 7 is configured as, for example, a known printed wiring board
  • the power storage device 1 is configured by mounting various components on the substrate unit 7 as shown in FIG.
  • One substrate surface 7A of the substrate unit 7 is disposed on the power storage unit 3 side and is kept at a predetermined distance from each power storage unit 3.
  • a holding unit 40 is fixed to one substrate surface 7 ⁇ / b> A of the substrate unit 7, and a plurality of power storage units 4 are fixed so as to be held by the holding unit 40.
  • the control unit 20 is configured as a microcomputer, for example, and includes an arithmetic unit such as a CPU, a memory such as a ROM or a RAM, an AD converter, and the like.
  • the control unit 20 is configured to be able to detect a voltage at a predetermined position of the power line 96.
  • the control unit 20 has a function of controlling the charging circuit unit 10 and the output unit 30, and in the example of FIG. 3, a function of controlling an on operation and an off operation of the switching unit 16 described later, and an output unit 30 described later. It has a function of controlling the discharge operation and the discharge stop operation.
  • the control unit 20 corresponds to an example of a control unit, and controls the charging operation of the charging circuit unit 10 by controlling the switching operation of the switching unit 16.
  • a voltage signal indicating the output voltage of the power storage unit 2 (the potential of the terminal having the highest potential (terminal connected to the conductive path 32)) is sent to the control unit 20 via the signal line 36.
  • the control unit 20 can grasp the output voltage of the power storage unit 2.
  • the charging / discharging unit 9 includes a charging circuit unit 10 and an output unit 30.
  • the charging circuit unit 10 charges the power storage unit 2 based on electric power from the battery 92, and an output unit. 30 can perform the discharging operation of discharging the power storage unit 2.
  • the charging operation by the charging circuit unit 10 is controlled by the control unit 20, and the discharging operation by the output unit 30 is also controlled by the control unit 20.
  • the charging circuit section 10 includes a charging path 12, a plurality of resistance sections 14, and a switching section 16, and the switching section 16 and the plurality of resistance sections 14 are connected in series by a wiring section (charging path 12). Make.
  • the charging path 12 is a conductive path serving as a path through which a charging current flows between the battery 92 functioning as a main power supply section and a plurality of power storage sections 3 (power storage units 2) functioning as auxiliary power supply sections.
  • the charging path 12 is configured by a copper foil pattern or the like disposed on the substrate surface 7 ⁇ / b> A of the substrate unit 7.
  • the plurality of resistance units 14 are configured by known resistors, and are provided in the charging path 12 and function as charging path resistance units that generate heat when a charging current flows through the charging path 12.
  • Each resistance portion 14 corresponds to an example of a heat-generating component and functions as a current limiting resistor that limits the charging current.
  • These resistance portions 14 are mounted on one substrate surface 7A of the substrate portion 7 as shown in FIG. 4 and are disposed in a region between the substrate portion 7 and the power storage portion 3, and the charging circuit portion 10 performs a predetermined charging operation. Electric power is supplied from the battery 92 in response to the (operation for turning the switching unit 16 on), and a charging current to the power storage unit 3 flows by this electric power.
  • These resistance units 14 function to release heat to at least the power storage unit 3 side (upper side) when a charging current flows according to the ON operation of the switching unit 16.
  • the switching unit 16 is configured by a semiconductor switch such as a MOSFET or a bipolar transistor, or a mechanical relay, and is configured to switch to an on state or an off state in accordance with a control signal from the control unit 20.
  • a charging current flows through the charging path 12, and when the switching unit 16 is in the off state, the charging current does not flow through the charging path 12.
  • the switching unit 16 is configured as a MOSFET, and is energized so that a current flows from the battery 92 side to the power storage unit 3 side during the on operation, and a current flows from the battery 92 side to the power storage unit 3 side during the off operation.
  • a configuration that is in a cut-off state so as not to occur is described as a representative example.
  • the switching unit 16 is turned on when an on signal (a signal for instructing the on operation of the switching unit 16) is given from the control unit 20 to the switching unit 16. Then, a charging operation (an operation in which a charging current is passed from the battery 92 side to the power storage unit 2 side) is performed. During such a charging operation, heat is generated in the plurality of resistance units 14, and this heat is transmitted to the power storage unit 3 disposed in the vicinity of the resistance unit 14. That is, the power storage unit 3 is warmed by the heat of the resistance unit 14 generated during the charging operation. On the other hand, when charging is stopped, heat due to the charging current is not generated in the plurality of resistance units 14, and heating of the power storage unit 3 is suppressed.
  • an on signal a signal for instructing the on operation of the switching unit 16
  • the output unit 30 can perform a discharge operation for discharging the power storage unit 2 and a stop operation for stopping the discharge of the power storage unit 2.
  • the output unit 30 may be configured to switch between the conductive path 32 and the conductive path 34 between a conductive state and a non-conductive state.
  • the output unit 30 can be configured by, for example, a switch element (not shown) such as a MOSFET interposed between the conductive path 32 and the conductive path 34.
  • a switch element such as a MOSFET interposed between the conductive path 32 and the conductive path 34.
  • the conductive path 32 is turned on when the switch element is turned on.
  • the conductive path 34 become conductive, and the discharge current from the power storage unit 2 is supplied to the load 94.
  • the switch element is turned off, the conductive path 32 and the conductive path 34 are in a non-conductive state, and the discharging operation from the power storage unit 2 is stopped.
  • the temperature sensor 22 shown in FIG.
  • the temperature sensor 22 may be mounted on the substrate surface 7 ⁇ / b> A of the substrate unit 7 so as to face the power storage unit 3, or may be fixed to the holding unit 40 or the power storage unit 3.
  • the temperature sensor 22 may be in contact with the outer surface portion of the power storage unit 3, or may be in contact with a member (for example, a heat transfer member) that is in contact with the outer surface portion of the power storage unit 3.
  • the temperature sensor 22 detects the temperature of the arrangement position and gives a detection value indicating the temperature of the arrangement position to the control unit 20.
  • the control unit 20 grasps the temperature of the arrangement position of the temperature sensor 22 (that is, the temperature of the power storage unit 3) based on the detection value given from the temperature sensor 22.
  • the holding unit 40 is configured to fix the power storage unit 3 and the substrate unit 7 with one substrate surface 7 ⁇ / b> A of the substrate unit 7 facing the outer peripheral side of the power storage unit 3.
  • the holding unit 40 is configured as a case body (clamping body) that covers and holds the plurality of power storage units 3, and is fixed in a state where the holding unit 40 is placed on the substrate surface 7 ⁇ / b> A of the substrate unit 7. 40B and the upper case part 40A fixed from the upper side with respect to the lower case part 40B.
  • the plurality of power storage units 3 are fixed in the holding unit 40 while being sandwiched between the upper case unit 40A and the lower case unit 40B.
  • the holding unit 40 is formed with a plurality of holes 46 extending in the front-rear direction, and is held in a state where each power storage unit 3 is accommodated in the holes 46.
  • the lower case part 40B is formed with an individual lower case part 41B that holds the lower side of each power storage part 3
  • the upper case part 41 is formed with an individual upper case part 41A that covers the upper side of each power storage part 3. Has been.
  • each inner peripheral portion on the lower case portion 40 ⁇ / b> B side of the inner peripheral portion of each hole 46 (FIG. 2) in the holding portion 40 is configured as a support portion 42.
  • These support portions 42 are arranged between one substrate surface 7A of the substrate portion 7 and the outer peripheral portion of each power storage unit 3, and support the outer peripheral portion of each power storage unit 3 from below.
  • the support unit 42 supports the power storage unit 3 while being in contact with the outer peripheral surface of each power storage unit 3 so that the power storage unit 3 is arranged to extend in a predetermined direction (front-rear direction) along the one substrate surface 7A.
  • the inner peripheral surface of each support portion 42 is configured as a semi-cylindrical curved surface, and is configured to contact the outer peripheral surface of each power storage unit 3 configured as a cylindrical surface.
  • each support portion 42 has a surface (i.e., a contact surface (lower surface) with the substrate surface 7 ⁇ / b> A in the lower case portion 40 ⁇ / b> B) on the substrate portion 7 side (i.e. Openings 44 following the inner peripheral surface in contact with the power storage unit 3 are formed.
  • Each opening 44 formed in each support portion 42 is disposed opposite to each power storage unit 3 at a position below each power storage unit 3, and is long in the direction in which each power storage unit 3 extends (that is, the front-rear direction). It is configured as a rectangular long hole.
  • a resistance portion 14 that functions as a heat generating component is disposed between the outer peripheral portion of each power storage portion 3 and the substrate portion 7.
  • a plurality of resistance portions 14 are arranged in a predetermined direction (front-rear direction) at each position of each opening 44 formed in each support portion 42, and any resistance portion 14 is in the opening 44.
  • the plurality of resistor portions 14 include a first charging resistor group configured by a first resistor 14A, a second charging resistor group configured by a second resistor 14B, and a third resistor 14C.
  • a fourth charging resistor group constituted by the fourth resistor 14D.
  • the first resistor 14 ⁇ / b> A constituting the first charging resistor group is mounted on the substrate surface 7 ⁇ / b> A and connected in series so as to be lined up in the front-rear direction. Are arranged so as to face the first power storage unit 3 ⁇ / b> A with a part inserted into the first power storage unit 3 ⁇ / b> A.
  • the second resistor 14 ⁇ / b> B constituting the second charging resistor group is mounted on the board surface 7 ⁇ / b> A and connected in series in a line-up in the front-rear direction, and the second opening 44 ⁇ / b> B among the plurality of openings 44. It is arranged so as to face the second power storage unit 3B with a part inserted therein.
  • the third resistor 14 ⁇ / b> C constituting the third charging resistor group is mounted on the substrate surface 7 ⁇ / b> A and connected in series so as to be aligned in the front-rear direction, and the third opening 44 ⁇ / b> C among the plurality of openings 44. It is arranged so as to face the third power storage unit 3C with a part inserted therein.
  • the fourth resistor 14 ⁇ / b> D constituting the fourth charging resistor group is mounted on the substrate surface 7 ⁇ / b> A and connected in series so as to be arranged in the front-rear direction, and the fourth opening 44 ⁇ / b> D among the plurality of openings 44. It is arranged so as to face the fourth power storage unit 3D with a part thereof inserted therein.
  • the switching unit 16 and the plurality of resistor units 14 are connected in series, but the number of resistors constituting the resistor unit 14 is not particularly limited.
  • a plurality of resistance units 14 connected in series to the charging circuit unit 10 are arranged as four charging resistance groups below the power storage units 3, and the first charging is performed as illustrated in FIG. 5.
  • a resistance group, a second charging resistance group, a third charging resistance group, and a fourth charging resistance group are connected in series. Due to such a configuration, when the switching unit 16 is in the ON state, a charging current flows through all the charging resistance groups, and heat is generated in all the charging resistance groups. Accordingly, all the power storage units 3 are heated during the charging operation of the charging circuit unit 10.
  • a heat transfer member 50 in contact with the resistance unit 14 and the power storage unit 3 is provided between the resistance unit 14 and the power storage unit 3.
  • 50 A of 1st heat-transfer members are arrange
  • the plurality of second resistors 14B and the second power storage unit 3B are sandwiched between the plurality of second resistors 14B and the second power storage unit 3B in the second opening 44B.
  • the second heat transfer member 50B is arranged in the shape.
  • the plurality of third resistors 14C and the third power storage unit 3C are sandwiched between the plurality of third resistors 14C and the third power storage unit 3C in the third opening 44C.
  • the third heat transfer member 50C is arranged in the shape.
  • the plurality of fourth resistors 14D and the fourth power storage unit 3D are sandwiched between the plurality of fourth resistors 14D and the fourth power storage unit 3D in the fourth opening 44D. In this way, the fourth heat transfer member 50D is arranged.
  • Each of the heat transfer members 50 (the first heat transfer member 50A, the second heat transfer member 50B, the third heat transfer member 50C, and the fourth heat transfer member 50D) has a longitudinal shape made of a material having a higher thermal conductivity than air, for example. Specifically, a metal material, a resin material, or the like can be suitably used.
  • the control unit 20 gives a charging instruction to the charging circuit unit 10 when a predetermined charging condition is satisfied, and charges the power storage unit 2. For example, when the output voltage of the power storage unit 3 becomes lower than the target voltage (for example, the output voltage of the power storage unit 3 becomes lower than the target voltage, the difference between the target voltage and the output voltage exceeds a certain value. In the case), the switching unit 16 is turned on, and the power storage unit 2 is charged until the output voltage of the power storage unit 2 reaches the target voltage. When the output voltage of the power storage unit 2 reaches the target voltage, the switching unit 16 is turned off and charging is terminated.
  • the target voltage for example, the output voltage of the power storage unit 3 becomes lower than the target voltage, the difference between the target voltage and the output voltage exceeds a certain value.
  • the switching unit 16 is turned on, and the power storage unit 2 is charged until the output voltage of the power storage unit 2 reaches the target voltage.
  • the switching unit 16 is turned off and charging is terminated.
  • the resistor unit 14 can generate heat by flowing a charging current through the resistor unit 14 and the power storage unit 3 can be warmed, so that the capacity decrease of the power storage unit 3 can be suppressed even in a low temperature environment. Can do.
  • the target voltage may always be a constant value or may be changed according to the situation.
  • the control unit 20 can acquire an IG on signal indicating that an ignition switch (not shown) provided in the vehicle is turned on and an IG off signal indicating that the ignition switch is turned off from an external device.
  • the target voltage is set to the first voltage, and the output voltage of the power storage unit 2 is maintained near the first voltage.
  • the target voltage is set to a second voltage lower than the first voltage, and the output voltage of the power storage unit 2 is maintained near the second voltage.
  • the control part 20 is the structure which can grasp
  • a resistance portion 14 (heat generating component) is mounted on the substrate portion 7.
  • the resistance unit 14 causes a current to flow in response to the charging circuit unit 10 (circuit unit) performing a predetermined charging operation, and heats at least the holding unit 40 side (that is, the power storage unit 3 side). Configure to discharge. Therefore, the control device 5 can transmit the heat generated in the resistance unit 14 (heat generating component) to the power storage unit 3 when the power storage unit 3 is charged, and increase the temperature of the power storage unit 3.
  • the resistance portion 14 (heat generating component) is mounted on one substrate surface 7A of the substrate portion 7 and disposed in the region between the substrate portion 7 and the power storage unit 3, the resistance portion 14 (heat generating component) The generated heat is easily transmitted efficiently to the power storage unit 3, and the effect of increasing the temperature of the power storage unit 3 can be further enhanced.
  • the control device 5 includes a control unit 20 that controls at least the charging operation performed by the charging circuit unit 10 (circuit unit).
  • the charging circuit unit 10 includes a charging path 12 that serves as a path for flowing a charging current based on power from a battery 92 (vehicle power supply unit) to the power storage unit 3, and a charging current that is provided in the charging path 12 and that is charged in the charging path 12.
  • a resistance unit 14 (charging path resistance unit, heat-generating component) that generates heat in response to flow, and a switching unit 16 (charging path switching unit) that switches the charging path 12 between a state in which charging current flows and a state in which charging current does not flow.
  • At least the resistance unit 14 functions as a heat generating component
  • the control unit 20 has a function of controlling a charging operation performed by the charging circuit unit 10 by controlling at least a switching operation of the switching unit 16.
  • the control device 5 configured as described above causes the resistance unit 14 (charging path resistance unit) provided in the charging path 12 to function as a heat generating component when supplying the charging current to the power storage unit 3 by the charging circuit unit 10.
  • the temperature of the power storage unit 3 can be efficiently increased using the heat generated in the resistance unit 14.
  • the holding unit 40 is configured to fix the power storage unit 3 and the substrate unit 7 with one substrate surface 7 ⁇ / b> A of the substrate unit 7 facing the outer peripheral side of the power storage unit 3. ing.
  • a resistor 14 heat generating component
  • the control device 5 configured as described above can integrally fix the power storage unit 3 and the substrate unit 7 by the holding unit 40, and the mounting surface covered by the power storage unit 3 in the integrated unit is a heat generating component.
  • the power storage unit 3 can be efficiently warmed by this heat-generating component while being efficiently used as the arrangement region of the battery.
  • the holding unit 40 is disposed in a region between one substrate surface 7 ⁇ / b> A of the substrate unit 7 and the outer peripheral part of the power storage unit 3 and has a support unit 42 that supports the outer peripheral part of the power storage unit 3.
  • a support unit 42 that supports the outer peripheral part of the power storage unit 3.
  • an opening 44 is formed from the surface of the support portion 42 on the power storage unit 3 side to the surface on the substrate unit 7 side.
  • the resistance portion 14 heat generating component
  • Control device 5 configured as described above stably supports the outer peripheral portion of power storage unit 3 by support unit 42 disposed between one substrate surface 7A of substrate unit 7 and the outer peripheral portion of power storage unit 3.
  • the power storage unit 3 and the substrate unit 7 can be stably fixed by the holding unit 40. Furthermore, since the opening part 44 is formed in the support part 42 and it arrange
  • a heat transfer member 50 that contacts the resistance unit 14 (heat generating component) and the power storage unit 3 is provided in a region between the resistance unit 14 (heat generating component) and the power storage unit 3.
  • the control device 5 configured as described above efficiently transfers the heat generated in the resistance unit 14 (heat generation component) to the power storage unit 3 by the heat transfer member 50 in contact with the resistance unit 14 (heat generation component) and the power storage unit 3. This can increase the temperature of the power storage unit 3 more effectively.
  • the power storage unit 3 is arranged to extend in a predetermined direction (front-rear direction) along one substrate surface 7A.
  • a plurality of resistance parts 14 (heat generating components) arranged in a predetermined direction along each power storage unit 3 are arranged to face each power storage unit 3 at the position of each opening 44.
  • the control device 5 configured as described above can efficiently transmit the heat generated by the plurality of resistance units 14 (heat generating components) to the power storage units 3 that are close to each other at the position of each opening 44. Therefore, the temperature of the power storage unit 3 can be more effectively increased by more efficiently using the heat generated in the plurality of resistance units 14 (heat generating components).
  • Example 2 Next, Example 2 will be described.
  • the in-vehicle power supply system 200 according to the second embodiment shown in FIG. 6 is different from the in-vehicle power supply system 100 according to the first embodiment in that a second charging circuit unit 210 is provided in addition to the charging circuit unit 10 and FIG. This is the only point that incorporates such control.
  • each part other than the second charging circuit unit 210 is the same as each part of the in-vehicle power supply system 100 (FIG. 1, FIG. 3, etc.) according to the first embodiment.
  • the same parts as those in the in-vehicle power supply system 100 of the first embodiment are denoted by the same reference numerals as those in the in-vehicle power supply system 100, and detailed description thereof is omitted.
  • the in-vehicle power supply system 200 includes a battery 92 and a power storage device 201 (in-vehicle power storage device) similar to those in the first embodiment, and is configured as a system that can supply power to the load 94.
  • a power storage device 201 in-vehicle power storage device
  • the power storage device 201 includes a power storage unit 2 including a plurality of power storage units 3 and a control device 205 (control device for in-vehicle power storage unit).
  • the power storage unit 2 has the same configuration as the power storage unit 2 of the first embodiment and functions in the same manner.
  • the control device 205 is a portion obtained by removing the power storage unit 2 from the power storage device 201 shown in FIG. 7, and the second charging circuit unit 210 is added to the control device 5 (FIG. 1, FIG. 2, etc.) of the first embodiment. It has a configuration.
  • the control device 205 includes a holding unit 40 that holds the power storage unit 3, a substrate unit 7 on which one substrate surface 7 ⁇ / b> A is disposed on the power storage unit 3 side, and a charging current to the power storage unit 3.
  • Charging circuit unit 10 capable of supplying power
  • second charging circuit unit 210 configured as a current path different from charging circuit unit 10, output unit 30, charging circuit unit 10, second charging circuit unit 210, and output
  • the control part 20 which can control the part 30 is provided.
  • the charging circuit unit 10 (first charging circuit unit) has the same circuit configuration as that of the first embodiment (see FIGS. 1 and 3), and is charged between the battery 92 (vehicle power supply unit) and the power storage unit 3.
  • a charging path 12 serving as a path through which current flows
  • a resistance section 14 (charging path resistance section) that is provided in the charging path 12 and generates heat in response to the charging current flowing through the charging path 12, and the charging current through the charging path 12
  • a switching unit 16 (charging path switching unit) that switches between a flowing state and a state in which a charging current does not flow is provided.
  • the mounting structure of the charging circuit unit 10 has the same configuration as that of the first embodiment (see FIGS. 2, 4, and 5). 7 is mounted on one substrate surface 7 ⁇ / b> A and disposed between the substrate unit 7 and the power storage unit 3. Also in this example, the resistance unit 14 (charging path resistance unit) corresponds to an example of a heat generating component, and the charging circuit unit 10 (first charging circuit unit) is in a predetermined charging operation (specifically, the switching unit 16 is turned on) In response to performing the operation, the current flows and functions to release heat to at least the power storage unit 3 side.
  • the holding unit 40 has the same configuration as that of the holding unit 40 used in the power storage device 1 according to the first embodiment. Like the configuration illustrated in FIG. 4, one substrate surface 7A of the substrate unit 7 is on the outer peripheral side of the power storage unit 3. In this state, the power storage unit 3 and the substrate unit 7 are fixed. And the resistance part 14 (heat-emitting component) is arrange
  • the holding unit 40 includes a support unit 42 (see FIG. 4) that is disposed between one substrate surface 7 ⁇ / b> A of the substrate unit 7 and the outer periphery of the power storage unit 3 and supports the outer periphery of the power storage unit 3.
  • each power storage unit 3 is arranged to extend in a predetermined direction (front-rear direction) along one substrate surface 7A, and similarly to the configuration shown in FIG. 4, the position of each opening 44 (see FIG. 4).
  • a plurality of resistance portions 14 (heat generating components) arranged in a predetermined direction (front-rear direction) along each power storage unit 3 are arranged to face each power storage unit 3.
  • a heat transfer member 50 FIG. 4 that contacts the resistance unit 14 (heat generation component) and the power storage unit 3 is provided between the resistance unit 14 (heat generation component) and the power storage unit 3.
  • the second charging circuit unit 210 is provided in addition to the charging circuit unit 10 (first charging circuit unit) similar to that of the first embodiment. And the charging device 209 is comprised by the 2nd charging circuit part 210.
  • FIG. 6 the second charging circuit unit 210 is connected in parallel with the charging circuit unit 10 (first charging circuit unit), the second charging path 212, the plurality of second resistance units 214, and the second switching.
  • the unit 216 is connected in series.
  • the second charging path 212 is configured as a conductive path through which a charging current flows between the battery 92 and the power storage unit 3 and is configured as a path different from the charging path 12.
  • the plurality of second resistance units 214 are provided in the second charging path 212 and are disposed at positions away from the space sandwiched between the substrate unit 7 and the power storage unit 3.
  • the second switching unit 216 is configured by a semiconductor switch such as a MOSFET or a bipolar transistor, a mechanical relay, or the like, and a state in which a charging current flows through the second charging path 212 and a charging current flow in accordance with a signal from the control unit 20. Functions to switch to no state.
  • the control unit 20 controls the switching operation of the switching unit 16 (charging path switching unit) and the switching unit 216 (second switching unit), so that the charging operation and the charging stop of the charging circuit unit 10 and the second charging circuit unit 210 are performed. Control the behavior.
  • the control unit 20 outputs an on signal to the switching unit 16, the switching unit 16 is in an on state, a charging current flows through the charging circuit unit 10, and when the off signal is output to the switching unit 16, the switching unit 16. Is turned off, and at this time, the charging current does not flow through the charging circuit unit 10.
  • the control unit 20 outputs an on signal to the switching unit 216
  • the switching unit 216 is turned on, a charging current flows through the second charging circuit unit 210, and an off signal is output to the switching unit 216.
  • the second switching unit 216 is turned off when the charging current is present, and no charging current flows through the second charging circuit unit 210 at this time.
  • the control unit 20 can execute the charging control shown in FIG. 8 with a start condition that, for example, the ignition switch of the vehicle on which the system 200 of FIG. 6 is mounted is switched on.
  • the charging control shown in FIG. 8 is stopped in order to reduce power consumption.
  • the control unit 20 After starting the charging control shown in FIG. 8, the control unit 20 first compares the output voltage of the power storage unit 2 (hereinafter also referred to as a capacitor voltage) with a target voltage in step S ⁇ b> 1, and the output voltage is less than the target voltage. It is determined whether or not there is. When the control unit 20 determines in step S1 that the output voltage is not less than the target voltage (that is, the output voltage is equal to or higher than the target voltage and no in step S1), the charging control in FIG. 8 ends. To do.
  • the output voltage of the power storage unit 2 hereinafter also referred to as a capacitor voltage
  • the control unit 20 determines the temperature of the power storage unit 2 (hereinafter also referred to as the capacitor temperature) and the target in step S2. The temperature is compared to determine whether the capacitor temperature is lower than the target temperature. Specifically, the temperature indicated by the detection value input from the temperature sensor 22 is the temperature of the power storage unit 2 (capacitor temperature), and it is determined whether or not the capacitor temperature is lower than the set target temperature.
  • the control unit 20 may always set the target voltage to a constant value, or may change the target voltage according to the situation. For example, the target voltage may be set to the first voltage when the ignition switch is on, and the target voltage may be set to a second voltage lower than the first voltage when the ignition switch is off. .
  • the control unit 20 When determining that the temperature of the power storage unit 2 (capacitor temperature) is lower than the target temperature in the determination process of step S2, the control unit 20 turns off the second switching unit 216 (switch 2) in step S3.
  • the unit 16 (switch 1) is turned on.
  • charging is performed via the charging circuit unit 10, and in this case, charging is performed while each power storage unit 3 is warmed by heat generated in the resistance unit 14. That is, when the temperature of the power storage unit 2 is relatively low, the power storage unit 2 can be warmed during the charging operation, and the performance deterioration of the power storage unit 2 due to the temperature decrease can be suppressed.
  • control unit 20 determines whether or not the output voltage (capacitor voltage) of power storage unit 2 is less than the target voltage in step S4. If the output voltage is less than the target voltage (if yes in step S4), The process returns to step S2, and the processes after step S2 are performed.
  • the control unit 20 determines in step S4 that the output voltage (capacitor voltage) of the power storage unit 2 is not less than the target voltage (in the case of no in step S4), not only the second switching unit 216 (switch 2) but also the switching unit. 16 (switch 1) is also turned off, and charging of the power storage unit 2 by the charging device 209 is stopped.
  • step S2 when it is determined in step S2 that the temperature of the power storage unit 2 (capacitor temperature) is not lower than the target temperature, the control unit 20 turns off the switching unit 16 (switch 1) in step S6.
  • the switching unit 216 (switch 2) is turned on.
  • charging is performed through the second charging circuit unit 210, and in this case, the storage unit 2 is suppressed from being heated by the resistance unit 14 during charging. That is, when the temperature of the power storage unit 2 is relatively high, it is possible to stop heating the power storage unit 2 by heat generation according to the charging current, and to suppress an excessive temperature rise of the power storage unit 2.
  • control unit 20 determines whether or not the output voltage (capacitor voltage) of power storage unit 2 is less than the target voltage in step S7. If the output voltage is less than the target voltage (if yes in step S7), The process returns to step S2, and the processes after step S2 are performed.
  • the control unit 20 not only the switching unit 16 (switch 1) but also the switching unit 16 ( The switch 2) is also turned off, and charging of the power storage unit 2 by the charging device 209 is stopped.
  • the temperature sensor 22 corresponds to an example of a temperature detection unit, and functions to detect the temperature of the power storage unit 3.
  • the control unit 20 sets the charging circuit unit 10 in a state where no charging current flows.
  • the operation of the switching unit 16 (charging path switching unit) and the switching unit 216 (second switching unit) is controlled such that the charging current flows through the second charging circuit unit 210.
  • the charging device 209 (circuit unit) includes the charging circuit unit 10 (first charging circuit unit) and the second charging circuit unit 210.
  • the second charging circuit unit 210 is configured as a path through which a charging current based on electric power from the battery 92 (on-vehicle power supply unit) flows to the power storage unit 3 and is configured as a path different from the charging path 12.
  • a second switching unit 216 that switches between a state in which the charging current flows and a state in which the charging current does not flow.
  • the control unit 20 controls charging operations performed by the charging circuit unit 10 and the second charging circuit unit 210 by controlling switching operations performed by at least the switching unit 16 (charging path switching unit) and the switching unit 216 (second switching unit). It has a function to control.
  • the control device 205 configured as described above includes a charging circuit unit 10 (first charging circuit unit) that supplies a charging current via a resistor unit (resistor unit 14) provided between the substrate unit 7 and the power storage unit 3. ) And a second charging circuit unit 210 that supplies a charging current via a resistor unit 214 (second resistor unit) disposed at a position outside a space sandwiched between the substrate unit 7 and the power storage unit 3.
  • the charging circuit unit 10 (first charging circuit unit) can perform a charging operation in which heat generated in the resistor unit (resistor unit 14) is easily transmitted to the power storage unit 3, and the second charging circuit unit 210 has a resistor unit (second resistor). Charging operation in which heat generated in the unit 214) is difficult to be transmitted to the power storage unit 3 becomes possible.
  • control device 205 has a temperature sensor 22 (temperature detection unit) that detects the temperature of the power storage unit 3, and the control unit 20 is when the temperature detected by the temperature sensor 22 (temperature detection unit) is equal to or higher than a predetermined value.
  • the switching unit 16 charge
  • the switching unit 16 discharge
  • the control device 5 configured as described above performs the second charging while suppressing the heat generation of the resistance unit (resistor unit 14).
  • the charging current can be supplied in a form in which heat is not easily transmitted to the power storage unit 3 by the circuit unit 210. Therefore, when the temperature of power storage unit 3 increases to some extent, it is possible to prevent the temperature of power storage unit 3 from becoming too high due to the influence of heat generated during charging.
  • Example 3 Next, Example 3 will be described.
  • the only difference between the in-vehicle power supply system 300 according to the third embodiment shown in FIG. 9 and the in-vehicle power supply system 100 according to the first embodiment is that the discharge circuit unit 310 is provided and the control shown in FIG. It is.
  • each part other than the discharge circuit unit 310 is the same as each part of the in-vehicle power supply system 100 (FIGS. 1, 3 and the like) according to the first embodiment.
  • the same parts as those in the in-vehicle power supply system 100 of the first embodiment are denoted by the same reference numerals as those in the in-vehicle power supply system 100, and detailed description thereof is omitted.
  • the circuit of the power storage device 301 of the power storage device 1 of Example 1 is only the point that the discharge circuit unit 310 is added and the switching unit 316 can be controlled by the control unit 20 as shown in FIG. Unlike the circuit (FIG. 3), the rest is the same as the circuit of the power storage device 1.
  • the mounting structure of the power storage device 301 is such that each component constituting the discharge circuit unit 310 is mounted on the substrate unit 7 and the resistor unit 314 that constitutes the discharge circuit unit 310 is arranged. Only the point that each opening 44 is slightly larger than the configuration of the first embodiment (FIG. 4) is different from the mounting structure (FIGS. 2 and 4) of the power storage device 1 shown in the first embodiment. Is the same as the mounting structure of the power storage device 1.
  • the in-vehicle power supply system 300 includes the battery 92 and the power storage device 301 (in-vehicle power storage device) similar to those in the first embodiment, and is configured as a system that can supply power to the load 94.
  • the power storage device 301 includes a power storage unit 2 including a plurality of power storage units 3 and a control device 305 (control device for in-vehicle power storage unit).
  • the power storage unit 2 has the same configuration as the power storage unit 2 of the first embodiment and functions in the same manner.
  • the control device 305 is a portion obtained by removing the power storage unit 2 from the power storage device 301 shown in FIGS. 10 and 11, and a discharge circuit unit 310 is added to the control device 5 (FIG. 1, FIG. 2, etc.) of the first embodiment. It becomes the composition.
  • the control device 305 includes a holding unit 40 that holds the power storage unit 3, a substrate unit 7 on which one substrate surface 7 ⁇ / b> A is disposed on the power storage unit 3 side, and charging current to the power storage unit 3.
  • a charging circuit unit 10 that can supply the charging circuit unit 10, an output unit 30, and a control unit 20 that can control the charging circuit unit 10 and the output unit 30.
  • the charging circuit unit 10 (first charging circuit unit) has the same circuit configuration as that of the first embodiment (see FIGS. 1 and 3), and is charged between the battery 92 (vehicle power supply unit) and the power storage unit 3.
  • a charging path 12 serving as a path through which current flows
  • a resistance section 14 (charging path resistance section) that is provided in the charging path 12 and generates heat in response to the charging current flowing through the charging path 12, and the charging current through the charging path 12
  • a switching unit 16 (charging path switching unit) that switches between a flowing state and a state in which a charging current does not flow is provided.
  • the mounting structure of the charging circuit unit 10 has the same configuration as that of the first embodiment (see FIGS.
  • the resistance unit 14 (charging path resistance unit) is a substrate unit similar to the configuration shown in FIG. 4. 7 is mounted on one substrate surface 7 ⁇ / b> A and disposed between the substrate unit 7 and the power storage unit 3. Also in this example, the resistance unit 14 (charging path resistance unit) corresponds to an example of a heat generating component, and the charging circuit unit 10 (first charging circuit unit) is in a predetermined charging operation (specifically, the switching unit 16 is turned on) In response to performing the operation, the current flows and functions to release heat to at least the power storage unit 3 side.
  • the control device 305 further includes a discharge circuit unit 310.
  • Discharge circuit unit 310 is electrically connected to power storage unit 3 and has a discharge path 312 serving as a path for a discharge current from power storage unit 3, and provided in discharge path 312 and discharge current flows through discharge path 312. Resistor 314 that generates heat accordingly, and switching unit 316 that switches discharge path 312 between a state in which a discharge current from power storage unit 3 flows and a state in which a discharge current from power storage unit 3 does not flow.
  • the discharge circuit unit 310 has a configuration in which a switching unit 316 and a plurality of resistance units 314 (discharge path resistance units) are connected in series between the conductive path 32 connected to the power storage unit 2 and the ground.
  • the number of resistors constituting the resistance unit 314 is not particularly limited.
  • a plurality of resistance units 314 connected in series to the discharge circuit unit 310 are arranged at the lower position of each power storage unit 3 as four discharge resistance groups.
  • the first discharge resistance group, the second discharge resistance group, the third discharge resistance group, and the fourth discharge resistance group are connected in series. Due to such a configuration, when the switching unit 316 is in the ON state, a charging current flows through all the discharge resistance groups, and heat is generated in all the discharge resistance groups. Accordingly, all the power storage units 3 are heated during the discharging operation of the discharge circuit unit 310.
  • the holding unit 40 shown in FIGS. 10, 11 and the like has the same configuration as the holding unit 40 used in the power storage device 1 of Example 1, and similarly to the configuration shown in FIG. Is configured to fix the power storage unit 3 and the substrate unit 7 in a state of facing the outer peripheral side of the power storage unit 3.
  • Resistor portions 314 are arranged between the outer peripheral portion of the power storage unit 3 and the substrate unit 7.
  • the holding unit 40 includes a support unit 42 that is disposed between one substrate surface 7 ⁇ / b> A of the substrate unit 7 and the outer periphery of the power storage unit 3 and supports the outer periphery of the power storage unit 3.
  • each power storage unit 3 is arranged so as to extend in a predetermined direction (front-rear direction) along one substrate surface 7 ⁇ / b> A, and at each opening 44 position, along each power storage unit 3 in a predetermined direction (front-rear direction).
  • a plurality of resistance portions 14 and 314 (heat generating components) arranged in the direction) are arranged to face each power storage unit 3.
  • each power storage unit 3 between the outer peripheral portion of each power storage unit 3 and the substrate unit 7, a resistor unit 14 and a resistor unit 314 that function as heat generating components are arranged.
  • the mounting structure of the resistor portion 14 is the same as that of the first embodiment, and the plurality of resistor portions 14 are in a predetermined direction (front-rear direction) at each position of each opening 44 formed in each support portion 42. All of the resistance portions 14 are arranged in a state where at least a part thereof is inserted into the opening 44, and face the power storage unit 3. Also in the example of FIG.
  • the plurality of resistor portions 14 are configured by a first charging resistor group configured by a plurality of first resistor bodies 14A arranged in the front-rear direction and a plurality of second resistor bodies 14B arranged in the front-back direction.
  • each discharge resistance group is arranged along with each charge resistance group.
  • the first resistor 314A constituting the first discharge resistance group is mounted on the substrate surface 7A and connected in series in the front-rear direction, and the first resistor 314A is arranged in the first opening 44A among the plurality of openings 44A.
  • the second resistor 314 ⁇ / b> B constituting the second discharge resistance group is mounted on the substrate surface 7 ⁇ / b> A and connected in series so as to be arranged in the front-rear direction, and the second opening 44 ⁇ / b> B among the plurality of openings 44. It is arranged so as to face the second power storage unit 3B with a part inserted therein. As described above, in the second opening 44B, a row of the second charge resistance group and a row of the second discharge resistance group arranged in close proximity are arranged.
  • the third resistor 314C constituting the third discharge resistor group is mounted on the substrate surface 7A and connected in series in a line-up in the front-rear direction, and the third opening 44C among the plurality of openings 44.
  • the fourth resistor 14 ⁇ / b> D constituting the fourth discharge resistor group is mounted on the substrate surface 7 ⁇ / b> A and connected in series so as to be aligned in the front-rear direction, and the fourth opening 44 ⁇ / b> D among the plurality of openings 44. It is arranged so as to face the fourth power storage unit 3D with a part thereof inserted therein. As described above, in the fourth opening 44D, a row of the fourth charging resistance group and a row of the fourth discharge resistance group arranged in close proximity are arranged.
  • a plurality of first resistors 14A, 314A constituting the first charging resistance group and the first discharging resistance group in the first opening 44A and the first power storage unit 3A are provided with a plurality of first 50 A of 1st heat-transfer members are arrange
  • a plurality of second resistors 14B, 314B and the second power storage unit 3B constituting the second charging resistor group and the second discharge resistor group in the second opening 44B a plurality of second resistors 14B, Second heat transfer member 50B is arranged in a form sandwiched between 314B and second power storage unit 3B.
  • the third heat transfer member 50C is arranged so as to be sandwiched between 314C and the third power storage unit 3C.
  • a plurality of fourth resistors 14D is arranged so as to be sandwiched between 314D and the fourth power storage unit 3D.
  • the control unit 20 can execute the charging control shown in FIG. 12 with a start condition that, for example, the ignition switch of the vehicle on which the system 300 of FIG. 9 is mounted is switched on.
  • the charging control shown in FIG. 12 is stopped in order to reduce power consumption.
  • the control unit 20 After starting the charging control shown in FIG. 12, the control unit 20 first compares the output voltage (capacitor voltage) of the power storage unit 2 with the target voltage in step S31, and determines whether or not the output voltage is less than the target voltage. Determine. As in the first embodiment, the control unit 20 may always set the target voltage to a constant value, or may change the target voltage according to the situation. For example, the target voltage may be set to the first voltage when the ignition switch is on, and the target voltage may be set to a second voltage lower than the first voltage when the ignition switch is off. .
  • step S31 When it is determined in step S31 that the output voltage (capacitor voltage) is not less than the target voltage (that is, when the output voltage is equal to or higher than the target voltage and no in step S31), the control unit 20 stores power in step S40.
  • the temperature of the unit 2 (capacitor temperature) is compared with a predetermined target temperature to determine whether or not the capacitor temperature is lower than the target temperature.
  • the temperature indicated by the detection value input from the temperature sensor 22 is the temperature of the power storage unit 2 (capacitor temperature), and it is determined whether or not the capacitor temperature is lower than a preset target temperature.
  • step S40 When it is determined in step S40 that the temperature of the power storage unit 2 (capacitor temperature) is not lower than the target temperature, the control unit 20 ends the control of FIG. When the control of FIG. 12 is completed, the control of FIG. 12 is executed again at short time intervals.
  • step S31 When the control unit 20 determines in step S31 that the output voltage (capacitor voltage) is less than the target voltage (yes in step S31), the control unit 20 turns on the switching unit 16 (switch 1). With such a switching operation, the power storage unit 2 is charged via the charging circuit unit 10.
  • step S32 the control unit 20 determines whether or not the output voltage (capacitor voltage) of the power storage unit 2 is less than the target voltage in step S33. If the output voltage is less than the target voltage (if yes in step S33), The process returns to step S32, and the processes of steps S32 and S33 are performed.
  • step S33 the control unit 20 determines in step S33 that the output voltage (capacitor voltage) of the power storage unit 2 is not less than the target voltage (in the case of no in step S33)
  • the control unit 20 turns off the switching unit 16 (switch 1) in step S34. Then, charging of the power storage unit 2 by the charging circuit unit 10 is stopped.
  • the control unit 20 compares the temperature of the power storage unit 2 (capacitor temperature) with the target temperature in step S35, and determines whether the capacitor temperature is lower than the target temperature.
  • the control unit 20 turns on the switching unit 316 (switch 3). By such a switching operation, discharging is performed via the discharge circuit unit 310, and in this case, each power storage unit 3 is discharged while being warmed by heat generated in the resistance unit 314.
  • control unit 20 determines whether or not the output voltage (capacitor voltage) of power storage unit 2 exceeds the backupable voltage in step S37, and if the capacitor voltage exceeds the backupable voltage (step S37). In the case of yes in S37), the process returns to step S35, and the processes after step S35 are performed.
  • the control unit 20 turns off the switching unit 316 (switch 3). Then, the processing after step S32 is performed.
  • the backupable voltage is supplied to the load 94 when the output unit 30 is operated in a state where the power supply from the battery 92 is interrupted (a voltage that allows the load 94 to operate normally).
  • This is the output lower limit voltage of the electricity storage unit 2 to be applied and is lower than the target voltage. That is, if the output voltage of the power storage unit 2 is equal to or higher than the backup possible voltage value, a voltage higher than a predetermined value is applied to the conductive path 34 by operating the output unit 30 even when the power supply from the battery 92 is interrupted. can do.
  • step S35 When it is determined in step S35 that the temperature of the power storage unit 2 (capacitor temperature) is not lower than the target temperature, the control unit 20 turns off the switching unit 316 (switch 3) in step S39, and the control of FIG. Exit.
  • step S40 when the control unit 20 determines in step S40 that the temperature of the power storage unit 2 (capacitor temperature) is lower than the target temperature, the control unit 20 performs processing in and after step S36. In this case, discharge operation is performed by the discharge circuit unit 310 until the capacitor temperature becomes equal to or higher than the target temperature or the capacitor voltage becomes equal to or lower than the backupable voltage, thereby further heating the power storage unit 2.
  • the temperature sensor 22 corresponds to an example of a temperature detection unit, and functions to detect the temperature of the power storage unit 3.
  • the control unit 20 has a function of controlling the switching operation of the switching unit 16 and the switching unit 316.
  • the control unit 20 sets the switching unit 316 so that the discharge current flows through the discharge path 312 when a predetermined condition is satisfied (when the capacitor temperature is lower than the target temperature even when the capacitor voltage reaches the target voltage). It has a function of alternately and repeatedly performing a discharging operation for switching and a charging operation for switching the switching unit 16 so that a charging current flows through the charging path 12.
  • the discharge circuit unit 310 is electrically connected to the power storage unit 3 and the discharge path 312 serving as a path for the discharge current from the power storage unit 3 is provided in the discharge path 312 and the discharge path
  • a resistance part 314 discharge path resistance part
  • a switching unit 316 discharge path switching unit
  • the control unit 20 has a function of controlling the discharge operation of the discharge circuit unit 310, and specifically controls the discharge operation performed by the discharge circuit unit 310 by controlling the switching operation performed by the switching unit 316.
  • the control device 305 configured as described above causes the resistor portion (resistor portion 314) provided in the discharge path 312 to function as a heat-generating component when operating the discharge circuit portion 310 to flow a discharge current from the power storage portion 3.
  • the temperature of the power storage unit 3 can be efficiently increased using the heat generated in the resistance unit 314.
  • the control unit 20 causes the discharge current to flow through the discharge path 312.
  • the discharge circuit unit 310 has a function of repeatedly performing a discharge operation, and the control of causing the charge circuit unit 10 to perform a charging operation so that the charging path 12 is in a state where a charging current flows.
  • the control device 305 configured as described above can heat the resistance unit to transmit heat to the power storage unit 3 regardless of whether the charging current flows or the discharging current, and by repeating the discharging operation and the charging operation, Such heat transfer can be continued for a longer time.
  • control unit 20 discharges the discharge path in a voltage range in which the output voltage of the power storage unit 3 is equal to or higher than the predetermined voltage (specifically, a voltage range in which the output voltage of the power storage unit 2 is higher than the backupable voltage).
  • Control for causing the discharge circuit unit 310 to perform a discharge operation so that the discharge current flows through 312 and control for causing the charge circuit unit 10 to perform a charge operation so that the charging current flows through the charging path 12 Repeat alternately.
  • Control device 5 configured in this manner can continue heat transfer to power storage unit 3 over a longer period of time.
  • the discharge operation is performed in a voltage range in which the output voltage of the power storage unit 3 is equal to or higher than a predetermined voltage, so that power is supplied from the power storage unit 3 when charging / discharging for heat transfer is repeated. Even if a situation should occur, it is possible to quickly supply an output of a predetermined voltage or higher. For example, even if a situation in which power supply from the power storage unit 2 to the load 94 occurs when charging and discharging are repeated, a situation in which the backup operation for supplying power to the load 94 is impossible or delayed is less likely to occur. .
  • the power storage unit 3 configured as an electric double layer capacitor is illustrated as an example of the power storage unit.
  • the power storage unit 3 is, for example, another power storage unit such as a lithium ion battery or a lithium ion capacitor. May be.
  • the number of power storage units 3 constituting the power storage unit 2 is not particularly limited.
  • the power storage device may be configured with a plurality of power storage units.
  • the charging circuit that supplies the charging current through the resistance section using the resistance section provided in the conductive path as the current limiting resistance is illustrated.
  • a voltage conversion circuit such as a DCDC converter may be used, or another known charging circuit may be used.
  • the heat generating component is not limited to a resistor, and may be a coil, a semiconductor switch element, or the like.
  • the output unit 30 is illustrated as an example of the output unit 30, but the output unit 30 is not limited to this configuration.
  • the output unit 30 may be configured by a DCDC converter that boosts or steps down an input voltage applied to the conductive path 32 to a predetermined voltage and outputs a predetermined output voltage to the conductive path 34.
  • the heat generating component may not be inserted into the opening 44.
  • the heat generating component may be disposed in the vicinity of the opening 44 so as to protrude from the substrate surface of the substrate portion toward the opening region of the opening 44 and toward the opening 44.
  • predetermined charging start conditions examples of conditions for starting charging of the power storage unit 2 (predetermined charging start conditions) have been described.
  • the present invention is not limited to these examples, and charging of the power storage unit 2 is started when other conditions are satisfied. May be.
  • the conditions for starting execution of the control of FIG. 8 and FIG. 12 are not limited to the conditions of the above-described embodiment, and may be started when other conditions are satisfied.
  • the charging circuit unit 10 When the control (FIG. 8) of the second embodiment is changed, the charging circuit unit 10 performs charging when the temperature of the power storage unit 2 is lower than the first temperature, and the temperature of the power storage unit 2 is equal to or higher than the first temperature; Charging is performed by the charging circuit unit 10 and the second charging circuit unit 210 when the temperature is lower than the second temperature higher than the first temperature, and the second charging circuit unit when the temperature of the power storage unit 2 is equal to or higher than the second temperature. You may make it charge by 210. FIG.
  • the on-vehicle power supply system 300 according to the third embodiment may be modified as shown in FIG.
  • the onboard power supply system 400 shown in FIG. 13 is different from the onboard power supply system 100 of the first embodiment in that a second charging circuit unit 210 and a discharging circuit unit 310 are provided.
  • a portion obtained by removing the battery 92 and the load 94 from the in-vehicle power supply system 400 illustrated in FIG. 13 is the power storage device 401, and a portion obtained by removing the power storage unit 2 similar to that of the first embodiment from the power storage device 401 is the control device 405.
  • the circuit configuration of the control device 405 shown in FIG. 13 is a configuration in which a second charging circuit unit 210 similar to that of the second embodiment is added to the circuit (FIG.
  • each part other than the second charging circuit unit 210 is the same as each part of the on-vehicle power supply system 300 (FIG. 9) of the third embodiment.
  • the number of power storage units that configure the power storage unit 2 may be one or a plurality other than four. May be.
  • Battery (vehicle-mounted power supply part) 94 ... Load 210 ... Second charging circuit unit 212 ... Second charging path 214 ... Resistance unit (second resistance unit) 216... Switching unit (second switching unit) 310 ... Discharge circuit part (circuit part) 312 ... Discharge path 314 ... Resistance part (discharge path resistance part, heat-generating component) 316 ... switching unit (discharge path switching unit)

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PCT/JP2017/032889 2016-09-23 2017-09-12 車載用蓄電部の制御装置及び車載用蓄電装置 Ceased WO2018056119A1 (ja)

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