WO2010058839A1 - 充電制御装置 - Google Patents
充電制御装置 Download PDFInfo
- Publication number
- WO2010058839A1 WO2010058839A1 PCT/JP2009/069708 JP2009069708W WO2010058839A1 WO 2010058839 A1 WO2010058839 A1 WO 2010058839A1 JP 2009069708 W JP2009069708 W JP 2009069708W WO 2010058839 A1 WO2010058839 A1 WO 2010058839A1
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- WIPO (PCT)
- Prior art keywords
- storage capacity
- charge
- actual use
- battery
- control device
- Prior art date
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- 239000003990 capacitor Substances 0.000 claims abstract description 91
- 238000004364 calculation method Methods 0.000 claims description 17
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
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- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- 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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/13—Maintaining the SoC within a determined range
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
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- 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
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the present invention relates to a charge control device for a rechargeable battery.
- Vehicles such as EVs (Electric Vehicles) and HEVs (Hybrids Electric Vehicles) are equipped with a battery that supplies electric power to a motor or the like.
- a storage battery mounted on a vehicle is mounted with a storage battery such as a lithium ion battery or a nickel metal hydride battery.
- FIG. 27 is a diagram illustrating an example of the relationship between the durability days (the number of use days) of the battery and the capacity reduction rate. That is, if the capacitor is used or left in a high SOC state, the capacity reduction rate increases, and the capacitor tends to deteriorate.
- the usable capacity is a difference between an upper limit SOC that can be used (hereinafter also referred to as a limit upper limit SOC) and a lower limit SOC that can be used (hereinafter also referred to as a usable lower limit SOC).
- FIG. 28 is a diagram illustrating an example of the relationship between the years of use and the usable capacity of a conventional storage battery.
- a method for preventing such deterioration of the storage battery in order to prevent the storage battery from being left at a high SOC, it is discharged using an externally connected device, or before using the vehicle using a timer.
- a technique for charging is known (see, for example, Patent Document 1).
- a technique is known in which a lithium ion secondary battery is discharged before being left for a long time in a charged state at a high temperature (see, for example, Patent Document 2).
- Japanese Unexamined Patent Publication No. 2002-199616 Japanese Unexamined Patent Publication No. 2000-287372 Japanese Unexamined Patent Publication No. 2007-323999 Japanese Unexamined Patent Publication No. 2000-125415
- the conventional battery is not particularly regulated from the usable lower limit SOC to the limit upper limit SOC as the usable SOC range from the initial use to the end of use.
- the vehicle may be left or used in a high SOC region from a relatively early stage of use.
- the deterioration of the storage battery progresses, and the ratio of the electric driving decreases, such as the reduction of the electric driving possible distance and the time for assisting and regenerating, which may give the user a sense of incongruity during the driving.
- the deterioration of the battery is promoted only by stopping, and the vehicle may not be able to travel due to the deterioration of the battery even if the travel distance is short.
- the usable capacity of the storage battery is varied according to the estimated deterioration state.
- the range of the usable capacity is reduced in order to suppress the deterioration of the storage value, the electric running The vehicle behavior may be affected, for example, the distance may be reduced or the usable range of the electric device may be reduced.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a charge control device capable of charging while suppressing the progress of deterioration of a capacitor without performing unnecessary charging / discharging of the capacitor. And It is another object of the present invention to provide a charge control device that can charge while suppressing the progress of deterioration of the battery while satisfying the vehicle required output.
- a charge control device is a charge control device for a chargeable battery (for example, battery 101 in the embodiment), A voltage detection unit (for example, a voltage sensor 133 in the embodiment) that detects a voltage of the battery, a current detection unit (for example, a current sensor 135 in the embodiment) that detects a charge / discharge current of the battery, and the voltage detection A storage capacity estimation unit (for example, battery ECU 123 in the embodiment) for estimating a storage capacity (for example, SOC in the embodiment) of the battery, and a current detection unit.
- a voltage detection unit for example, a voltage sensor 133 in the embodiment
- a current detection unit for example, a current sensor 135 in the embodiment
- a charge / discharge amount calculation unit (for example, the management ECU 117 in the embodiment) that calculates a charge / discharge amount from the start of charging of the battery by integrating the charge / discharge current.
- a charge control unit (for example, an embodiment) that controls charging of the capacitor based on the storage capacity of the capacitor estimated by the storage capacity estimation unit and the charge / discharge amount of the capacitor calculated by the charge / discharge amount calculation unit
- the storage ECU estimated by the storage capacity estimation unit based on the state characteristics of the battery, for example, the actual use upper limit storage capacity (for example, the actual use upper limit in the embodiment) SOC) is set to be updated.
- the charge control unit when the charge control unit charges the battery, the charge / discharge amount calculated by the charge / discharge amount calculation unit reaches a predetermined value. Sometimes, the storage capacity estimated by the storage capacity estimation unit is updated to the actual use upper limit storage capacity.
- the storage capacity estimated by the storage capacity estimation unit is the usable lower limit storage capacity.
- the storage capacity estimated by the storage capacity estimation unit when the charge / discharge amount calculated by the charge / discharge amount calculation unit reaches the predetermined value is set as the actual use upper limit storage capacity. .
- the charge control device of the invention according to claim 4 is such that the charge control unit calculates the charge / discharge amount even when the storage capacity estimated by the storage capacity estimation unit reaches the actual use upper limit storage capacity. Control is performed so that the battery is charged until the charge / discharge amount calculated by the unit reaches a predetermined value.
- the charge control unit is configured such that the storage capacity estimated by the storage capacity estimation unit does not reach the actual use upper limit storage capacity, but the charge / discharge amount is When the charge / discharge amount calculated by the calculation unit reaches a predetermined value, control is performed such that charging of the battery is stopped.
- the charge control device of the invention described in claim 6 is a storage unit (for example, in the embodiment) that stores the storage capacity estimated by the storage capacity estimation unit every time the charge / discharge amount reaches a predetermined value. Storage unit), and the charge control unit sets the actual use upper limit storage capacity based on the storage capacity stored in the storage unit.
- the charge control device of the invention described in claim 7 is characterized in that the storage unit stores a predetermined number of storage capacities estimated each time the charge / discharge amount reaches the predetermined value.
- the storage unit stores a predetermined number of storage capacities estimated every time the charge / discharge amount reaches the predetermined value for a predetermined time. It is characterized by.
- the charge control unit charges the capacitor in a state where the storage capacity estimated by the storage capacity estimation unit is larger than the usable lower limit storage capacity. Is started, and in the second charging mode, the actual use upper limit storage capacity, the usable lower limit storage capacity, and the storage capacity estimation unit at the start of charging are estimated. The remaining amount of the battery at the start of charging is estimated based on the stored storage capacity and the predetermined value, and when the charge control device charges the battery, the remaining amount is used as the charge / discharge amount. It is characterized by including.
- an external power supply outside the vehicle for example, the external power supply source 139 in the embodiment
- the battery is connected
- the remaining amount is estimated by the storage capacity estimation unit when the actual use upper limit storage capacity is B, the usable lower limit storage capacity is C, and the storage capacity estimation unit when the battery is connected to the external power source.
- the stored power storage capacity is X and the predetermined value is A, it is estimated as (X ⁇ C) / (BC) ⁇ A.
- the charge control device of the invention when the limit upper limit storage capacity is initially set, and the charge control unit has exceeded the limit upper limit storage capacity, the actual use upper limit storage capacity, It is estimated that a failure has occurred in the battery, and a notification unit is notified of this.
- the charging control apparatus includes an internal resistance estimation unit (for example, the battery ECU 123 in the embodiment) that estimates the internal resistance of the battery, and the charging control unit estimates the internal resistance.
- the upper limit storage capacity (for example, the limit upper limit SOC in the embodiment) that is larger than the usable lower limit storage capacity (for example, the usable lower limit SOC in the embodiment) of the capacitor, based on the state characteristics due to the internal resistance estimated by the unit )
- a value that satisfies the vehicle requirement output of a vehicle (for example, a vehicle in the embodiment) on which the battery is mounted is set as the actual use lower limit storage capacity (for example, the actual use lower limit SOC in the embodiment).
- the capacitor is charged while maintaining a storage capacity equal to or higher than the actual use lower limit storage capacity.
- the charge control unit sets a value larger than the actual use lower limit storage capacity of the capacitor and less than or equal to the limit upper limit storage capacity (for example, implementation The actual use upper limit SOC in the embodiment is set, and the capacitor is charged between the actual use lower limit storage capacity and the actual use upper limit storage capacity.
- the actual use lower limit storage capacity is updated with the storage capacity at which the vehicle required output becomes the maximum output.
- the charge control unit when the charge control unit has a maximum output when the storage capacity of the capacitor is the actual use lower limit storage capacity, the vehicle required output is not satisfied,
- the actual use lower limit storage capacity is updated with a storage capacity at which the vehicle required output is a maximum output.
- the charge control unit when the charge control unit has a maximum output when the storage capacity of the battery is the actual use lower limit storage capacity is larger than the vehicle request output, the actual use lower limit storage capacity is updated with a storage capacity at which the vehicle required output is a maximum output.
- the charge control device of the invention is a memory that stores first information (for example, the SOC-OCV table in the embodiment) in which the storage capacity of the capacitor and the open circuit voltage of the capacitor are associated with each other.
- the charge control unit estimates an open circuit voltage of the battery when the battery capacity of the battery is the actual use lower limit battery capacity based on the first information stored in the storage unit, An actual reached voltage indicating a voltage drop when the battery outputs the required vehicle output, and an estimated reached voltage indicating a difference between the estimated open circuit voltage and a predetermined protection lower limit voltage for protecting the battery; Based on the above, the actual use lower limit storage capacity is updated.
- the charge control device of the invention described in claim 18 is provided with a temperature detection unit (for example, the temperature sensor 131 in the embodiment) for detecting the temperature of the battery, and the charge control unit is controlled by the temperature detection unit.
- the actual use lower limit storage capacity is updated based on the detected temperature.
- the charge control device of the invention described in claim 19 is characterized in that the charge control unit updates the actual use upper limit storage capacity based on the update amount of the actual use lower limit storage capacity.
- the charge control device provides the second information in which the actual use lower limit storage capacity and the actual use upper limit storage capacity are associated with each other (for example, the actual use upper limit SOC in the embodiment ⁇ actual A lower limit SOC table), and the charge control unit refers to the second information stored in the storage unit, and based on the update amount of the actual use upper limit storage capacity, the actual use lower limit The storage capacity is updated.
- the charge control device of the invention described in claim 2 it is possible to charge the battery while suppressing the progress of deterioration of the battery without performing unnecessary charge / discharge of the battery. Furthermore, it is possible to set an actual use upper limit storage capacity capable of charging an optimum charge amount for the storage battery.
- the actual use upper limit storage capacity capable of charging an optimum charge amount to the battery can be set.
- the actual capacity of the battery (actual upper limit storage capacity ⁇ usable lower limit storage capacity) is reduced due to deterioration of the battery, the actual use upper limit is set.
- the actual capacity of the battery can be kept constant. Further, since the actual capacity of the battery is constant, the user does not feel uncomfortable.
- the optimum actual use upper limit storage capacity is set. Can do.
- the optimum actual use upper limit storage capacity can be set.
- charging is started at a timing other than the trigger when the usable lower limit storage capacity is reached, and charging is performed in consideration of the remaining amount of the capacitor at the start of charging. Can be done.
- unnecessary charging / discharging of the capacitor is also performed by plug charging for charging the capacitor from an external power supply source, similarly to charging by a generator in the vehicle.
- the storage capacity of the battery can be maintained at the lower limit capacity that satisfies the vehicle output request, the progress of deterioration of the battery is suppressed while satisfying the vehicle output request. And can be charged.
- the vehicle request It is possible to charge the battery while suppressing the progress of deterioration of the battery while satisfying the output.
- the actual use lower limit storage capacity can be updated in the downward direction in order to maintain the lower limit capacity satisfying the vehicle output request for the storage capacity of the battery. It is possible to charge the battery while suppressing the progress of deterioration of the battery while satisfying the output.
- the charge control device of the invention described in claim 17 by providing the SOC-OCV table in which the storage capacity of the battery and the open circuit voltage are associated with each other, an actual drop voltage and a desired drop when the vehicle required output is performed Since the actual use lower limit storage capacity is updated based on the comparison result with the voltage, the actual use lower limit storage capacity can be reliably updated to a value that satisfies the vehicle required output.
- the charge control device of the nineteenth aspect of the present invention by updating the actual usage lower limit storage capacity update amount (lifting amount or lifting amount) for the actual use upper limit storage capacity, the usable capacity can be reduced. Since it can always be kept constant, the deterioration of the battery is suppressed, and at the same time, even if the battery capacity is reduced, the proportion of the electric running is not different from that at the time of the new article, so that the user does not feel uncomfortable.
- the usable capacity can be reduced by updating the actual use lower limit storage capacity by updating the update amount (lifting amount or lifting amount) of the actual use upper limit storage capacity. Since it can always be kept constant, the deterioration of the battery is suppressed, and at the same time, even if the battery capacity is reduced, the proportion of the electric running is not different from that at the time of the new article, so that the user does not feel uncomfortable. Even in this case, the vehicle output request can be satisfied.
- the block diagram which shows an example of the internal structure of the vehicle in the 1st Embodiment of this invention.
- the figure which shows an example of the relationship between a voltage and SOC The figure which shows an example of the relationship between the usage period of a capacitor
- movement at the time of updating real use upper limit SOC in the 1st Embodiment of this invention The flowchart which shows an example of another operation
- the figure which shows an example of the relationship between a voltage and SOC The flowchart which shows an example of the operation
- the figure which shows an example of the SOC-OCV table in the 2nd Embodiment of this invention The figure which shows an example of the relationship (at the time of a new article) with SOC of a capacitor
- movement for performing the 1st update of actual use upper limit SOC in the 2nd Embodiment of this invention The flowchart which shows an example of the operation
- capacitance fall rate The figure which shows an example of the relationship between the years of use of a conventional storage battery and the usable capacity
- HEV Hybrid Electric Vehicle
- the series-type HEV travels by the driving force of an electric motor using a capacitor as a power source.
- the internal combustion engine is used only for power generation, and the electric power generated by the driving force of the internal combustion engine is charged in a capacitor or supplied to an electric motor.
- the parallel HEV travels by the driving force of one or both of the electric motor and the internal combustion engine.
- a series-parallel HEV that combines both systems is also known.
- FIG. 1 is a block diagram showing the internal configuration of a series-type HEV.
- vehicle the driving force from the electric motor 105 using the battery 101 as a power source is transmitted to the driving wheel 129 via a gear box (gear) 115.
- gear box gear box
- the traveling mode of this vehicle is “EV traveling” or “series traveling”.
- EV traveling the vehicle travels by the driving force of an electric motor (MOT) 105 that is driven by power supply from a battery (BATT) 101.
- BATT battery
- series travel the travel is performed by the driving force of the electric motor 105 that is driven by the supply of power from the battery 101 and the supply of electric power generated by the generator (GEN) 109 by driving the internal combustion engine 107.
- GEN generator
- the vehicle shown in FIG. 1 includes a battery (BATT) 101, a first inverter (first INV) 103, an electric motor (MOT) 105, a multi-cylinder internal combustion engine (ENG) 107, a generator (GEN) 109, a first Two inverters (second INV) 111, a gear box (hereinafter simply referred to as “gear”) 115, a management ECU (MG (ECU) 117, a motor ECU (MOT ECU) 119, and an engine ECU (ENG ECU) 121; A battery ECU (BATT ECU) 123.
- the storage battery 101 has a plurality of storage cells connected in series and supplies a high voltage of 100 to 200 V, for example, and is mounted with a storage battery such as a lithium ion battery. Moreover, the full charge capacity of the battery 101 is different even with the same SOC depending on the degree of deterioration due to long-term use or the like.
- the first inverter 103 converts a DC voltage from the battery 101 into an AC voltage and supplies a three-phase current to the electric motor 105.
- the electric motor 105 generates power (torque) for the vehicle to travel. Torque generated by the electric motor 105 is transmitted to the drive shaft 127 of the drive wheel 129 via the gear 115.
- a multi-cylinder internal combustion engine (hereinafter simply referred to as “internal combustion engine”) 107 generates power (torque), and this power is consumed by the generator 109.
- the generator 109 is directly connected to the internal combustion engine 107.
- the generator 109 is driven by the internal combustion engine 107 to generate electric power.
- the electric power generated by the generator 109 is charged in the battery 101 or supplied to the electric motor 105.
- the second inverter 111 converts the AC voltage generated by the generator 109 into a DC voltage.
- the electric power converted by the second inverter 111 is charged in the battery 101 or supplied to the electric motor 105 via the first inverter 103.
- the gear 115 is a transmission that converts the driving force from the electric motor 105 into a rotation speed and torque at a desired gear ratio and transmits the converted torque to the drive shaft 127.
- the gear 115 and the rotor of the electric motor 105 are directly connected.
- the management ECU 117 performs switching between EV traveling or series traveling, controlling the electric motor 105 and the internal combustion engine 107, and the like.
- the management ECU 117 also includes a requested driving force sensor (not shown) that detects information from a vehicle speed sensor (not shown) that detects the speed of the vehicle and a driving force of the vehicle that is requested by the driver, such as the accelerator opening. ) Is input.
- the management ECU 117 calculates at least one of the amount of charge to the capacitor 101 and the amount of discharge from the capacitor 101 (hereinafter referred to as charge / discharge amount) and controls the state of charge of the capacitor 101 (SOC: State ⁇ ofSOCharge). Details of these will be described later.
- the charge / discharge amount is an energy amount.
- the motor ECU 119 controls the electric motor 105 in accordance with an instruction from the management ECU 117.
- the motor ECU 119 limits the current supplied from the battery 101 to the electric motor 105 when vehicle speed restriction is instructed from the management ECU 117.
- the engine ECU 121 controls the start and stop of the internal combustion engine 107, throttle valve opening / closing control and fuel injection control in each cylinder, and the number of rotations of the crankshaft of the internal combustion engine 107 in accordance with instructions from the management ECU 117.
- the temperature sensor 131 detects the temperature of the battery 101. Further, the voltage sensor 133 detects the voltage between the terminals of the battery 101.
- the current sensor 135 detects at least one of a charging current to the capacitor 101 and a discharging current from the capacitor 101 (hereinafter referred to as a charging / discharging current). These detections can be performed regularly, for example, and the detection timing can be set flexibly.
- the charger 137 receives power supply from an external power supply source 139 outside the vehicle, and converts an AC voltage into a DC voltage.
- the external power supply source 139 is disposed in a charging stand or in the home, and supplies power to the charger 137 to supply power having an alternating voltage to the vehicle.
- the battery ECU 123 estimates the state of charge (SOC) of the battery 101 and sends information indicating the state to the management ECU 117. At this time, the battery ECU 123 estimates the SOC of the battery 101 by performing real-time calculation based on the voltage detected by the voltage sensor 133.
- the estimated SOC of the battery 101 is also referred to as an estimated SOC. This estimation can be realized because there is a correlation between the SOC and the voltage of the battery 101.
- FIG. 2 is a diagram illustrating an example of the relationship between voltage and SOC.
- the SOC may be estimated based on the current detected by the current sensor 135 or the temperature detected by the temperature sensor 131. For example, the SOC may be estimated by correcting the detected voltage with a detected current or a detected temperature.
- the management ECU 117 integrates the charging / discharging current detected by the current sensor 135 every predetermined period, thereby at least one of the amount of charge to the capacitor 101 and the amount of discharge from the capacitor 101 (hereinafter referred to as charge / discharge amount). Is calculated.
- This calculation method is called a current integration method. For example, the charge / discharge amount accumulated from the start of charging is calculated.
- the limit upper limit SOC and the usable lower limit SOC are set in advance, and the management ECU 117 sets the actual use upper limit SOC in the meantime, and charges the battery 101 based on the estimated SOC and the charge / discharge amount. Is performed between the usable lower limit SOC and the actual usable upper limit SOC.
- the actual use upper limit SOC is a variable value, and the limit upper limit SOC and the usable lower limit SOC are fixed values.
- the management ECU 117 sets the SOC charged with a predetermined capacity from the usable lower limit SOC as the first actual use upper limit SOC (initial setting of the actual use upper limit SOC). Then, even if the capacity at the actual use upper limit SOC decreases due to the deterioration of the battery 101, the actual use upper limit SOC is updated in the upward direction by the predetermined capacity from the usable lower limit SOC so that the predetermined capacity can always be secured. To do.
- the predetermined capacity to be kept constant is also referred to as a target capacity.
- FIG. 3 is a diagram showing an example of the relationship between the capacitor usage period and the voltage at each SOC of the capacitor 101.
- FIG. 4 is a diagram showing an example of the relationship between the storage device usage period and the capacity of the storage device 101 at the actual use upper limit SOC.
- a capacity equal to or higher than a predetermined switching threshold can be secured at time t1 as the capacity of the actual use upper limit SOC. Disappear.
- This switching threshold is, for example, the same value as the minimum necessary capacity required for traveling.
- the management ECU 117 updates the actual use upper limit SOC in the upward direction as shown in FIG.
- the management ECU 117 again updates the actual use upper limit SOC in the increasing direction, as shown in FIG.
- the management ECU 117 repeats updating the actual use upper limit SOC when the capacity at the actual use upper limit SOC cannot secure the switching threshold value. If this update is performed in a short cycle, the change in the SOC capacity is reduced, and it is possible to prevent the vehicle behavior, for example, the travel distance for EV travel from changing rapidly without driving the ENG.
- FIG. 5 is a diagram illustrating an example of the relationship between the years of use and the usable capacity when the battery 101 is deteriorated as expected.
- FIG. 6 is a diagram illustrating an example of the relationship between the number of years of use and the usable capacity when the battery 101 is deteriorated below the expected level.
- FIG. 7 is a diagram illustrating an example of the relationship between the years of use and the usable capacity when the battery 101 is deteriorated more than expected.
- produced like FIG. 7 you may estimate that the malfunction has generate
- a failure estimation is executed by the management ECU 117, and a notification unit (not shown) notifies the fact.
- FIG. 8 shows the relationship between the age of use and the actual use upper limit SOC for the capacitor 101 that deteriorates as shown in FIGS. That is, for example, when the actual use upper limit SOC is set to 50 (%) and the use is assumed to be L1, if the deterioration is as expected, the increase in the actual use upper limit SOC is increased as shown in L2 in the case of deterioration below the assumption. The degree is relatively small. On the other hand, in the case of deterioration more than expected, as shown in L3, the increase degree of the actual use upper limit SOC becomes relatively large.
- FIG. 8 is a diagram illustrating an example of the relationship between the years of use of the battery 101 and the actual use upper limit SOC for each deterioration state.
- the management ECU 117 controls the actual use upper limit SOC, and charging the capacitor 101 between the usable lower limit SOC and the actual use upper limit SOC as described above, regardless of the years of use of the capacitor 101. Since the same capacity is used, even if the usable capacity of the battery decreases from the start of the use of the battery 101, the ratio of the electric running does not change from when it is new, and the user does not feel uncomfortable. In addition, since the SOC usage range of the battery is limited to the actual use upper limit SOC charged only by the target capacity ( ⁇ usable capacity) from the usable lower limit SOC, the battery 101 of the battery 101 is maintained by maintaining a high SOC state. It is possible to suppress deterioration.
- FIG. 9 is a flowchart showing an example of an operation when updating the actual use upper limit SOC in the present embodiment.
- FIG. 9 for example, it is assumed that charging of the battery 101 is started when the estimated SOC falls below the usable lower limit SOC due to capacity consumption during traveling of the vehicle.
- step S104 After resetting the charge / discharge amount, power generation by the internal combustion engine 107 and the generator 109 is started based on a command from the management ECU 117, and charging of the battery 101 is started (step S104). After the start of charging, the management ECU 117 determines whether or not the estimated SOC has reached the actual use upper limit SOC of the battery 101 (step S105).
- the management ECU 117 determines whether or not the calculated charge / discharge amount is equal to or less than a specified value (step S106). When it is determined that the charge / discharge amount is larger than the specified value, the management ECU 117 controls to stop the charging of the battery 101 (step S111). When stopping charging, based on a command from the management ECU 117, power generation by the internal combustion engine 107 and the generator 109 is stopped, and charging of the battery 101 is stopped. The specified value to be compared with the charge / discharge amount is set in advance.
- the management ECU 117 controls to continue charging the battery 101 (step S107), and determines whether or not the calculated charge / discharge amount has reached the specified value ( Step S108). If it is determined that the specified value has not been reached, the management ECU 117 controls to continue charging the battery 101.
- the management ECU 117 controls to stop the charging of the battery 101 (step S109). Then, the management ECU 117 updates the actual use upper limit SOC of the battery 101 to the estimated SOC of the battery 101 when the charging is stopped (step S110). Here, the actual use upper limit SOC is updated in the upward direction.
- step S105 when it is determined in step S105 that the estimated SOC has not reached the actual use upper limit SOC, the management ECU 117 determines whether or not the calculated charge / discharge amount has reached a specified value (step S112). When it is determined that the charge / discharge amount has not reached the specified value, the process returns to step S104, and the management ECU 117 controls to continue charging the battery 101.
- the management ECU 117 controls to stop the charging of the battery 101 (step S113). Then, the management ECU 117 updates the actual use upper limit SOC of the battery 101 to the estimated SOC of the battery 101 when the charging is stopped (step S114). Here, the actual use upper limit SOC is updated in the downward direction.
- the battery can be charged while preventing the user from feeling uncomfortable while driving, and without charging / discharging of the unnecessary battery, while suppressing the progress of deterioration of the battery, Life can be extended.
- the charge / discharge amount does not reach the specified value even when the estimated SOC reaches the actual use upper limit SOC.
- the charge / discharge amount calculated by the management ECU 117 is calculated by integration every predetermined period, an integration error tends to increase. Is also included in the charge / discharge amount, there is a possibility that the error is further increased. For example, if the actual use upper limit SOC is set too high due to an error, it is conceivable that the charge / discharge amount reaches the specified value even if the estimated SOC does not reach the actual use upper limit SOC. Even in such a case, since there is no problem even if the actual use upper limit SOC is lowered, it is possible to further prevent deterioration of the battery 101 by performing control to lower the actual use upper limit SOC.
- FIG. 10 is a flowchart showing another example of the operation when updating the actual use upper limit SOC in the present embodiment.
- FIG. 10 for example, it is assumed that charging of the battery 101 is started when a connection portion extending from the charger 137 is connected to the external power supply source 139 while the vehicle is stopped.
- the management ECU 117 determines that the plug as a connecting portion extending from the charger 137 is inserted and connected to the external power supply source 139 (step S201), the remaining power of the battery 101 at the time of the connection is calculated (step S202). ).
- the actual usable SOC set at the time of plug connection is B (%)
- the lower limit of usable SOC is C (%)
- the target value of charge / discharge amount is A (Wh)
- estimated at the time of plug connection is estimated SOC is X (%)
- the remaining electric energy E0 at the time of plug connection is calculated as in the following equation (1).
- the charge / discharge amount from when the estimated SOC has recently reached the usable lower limit SOC is stored in a storage unit (not shown), and the charge / discharge amount stored in the storage unit at the time of plug connection is stored in the remaining charge of the battery 101. It is good.
- the management ECU 117 calculates the charge / discharge amount using E0 as an initial value (step S203), and starts plug charging for receiving the power supply from the external power supply source 139 and charging the battery 101. Control is performed (step S204). Since the charge / discharge amount has E0 as an initial value, the charge / discharge amount calculated after the start of charging includes the charge / discharge amount due to plug charging as well as the remaining amount of electricity of the battery 101 at the time of plug connection.
- step S105 to step S114 in FIG. 9 After the start of charging, the same processing as step S105 to step S114 in FIG. 9 is performed. However, when comparing the charge / discharge amount with the specified value (corresponding to the target value A of the charge / discharge amount) in steps S106, S108, and S112, as described above, as the charge / discharge amount, A comparison is made including the remaining electricity of the battery 101. If it is determined in step S112 that the charge / discharge amount has not reached the specified value, the process returns to step S204, and the management ECU 117 controls to continue charging the battery 101.
- the specified value corresponding to the target value A of the charge / discharge amount
- the battery can be charged while preventing the user from feeling uncomfortable while driving, and without charging / discharging of the unnecessary battery, while suppressing the progress of deterioration of the battery, Life can be extended. Further, since the charge / discharge amount calculated by the management ECU 117 is calculated by integration every predetermined period, an integration error tends to increase. Is also included in the charge / discharge amount, there is a possibility that the error is further increased. On the other hand, since plug charging is performed in FIG. 10, there is no error due to discharging, so the actual use upper limit SOC can be updated more accurately, and deterioration of the battery 101 can be prevented.
- charging of the battery 101 is started when the connecting portion extending from the charger 137 is connected to the external power supply source 139 while the vehicle is stopped.
- the internal combustion engine 107 is operated when heating is performed in cold weather, or when the generator 109 is operated at the time of a high output request in which the electric power of the battery 101 is insufficient while the vehicle is running, etc.
- the remaining electric energy can be obtained.
- FIG. 11 is a flowchart showing an example of further operation when updating the actual use upper limit SOC in the present embodiment.
- the actual use upper limit SOC is updated with an SOC selected from a plurality of SOC candidates.
- the management ECU 117 stores the estimated SOC at the time of charging stop as a candidate n of the actual use upper limit SOC in a storage unit (not shown) after the charging is stopped in steps S109, S111, and S113 (step S301). . That is, when the charge / discharge amount calculated by the management ECU 117 after the start of charging reaches a specified value, the actual use upper limit SOC is not updated immediately, but the estimated SOC at the time of charge stop is once updated. As a candidate for storage in a storage unit (not shown).
- the management ECU 117 determines whether or not the number of candidates stored in the storage unit has reached a specified number (step S302). If the specified number has not been reached, the process returns to step S101 to search for the next candidate.
- the management ECU 117 selects an optimum SOC from a plurality of candidates stored in the storage unit, and updates the actual use upper limit SOC to the selected SOC (step S303).
- a selection method of the SOC for example, the median value of a plurality of candidates is selected, the average value of the plurality of candidates is selected, the average value of the maximum value and the minimum value among the plurality of candidates is selected, and the most frequent value of the plurality of candidates Can be considered.
- the estimated SOC is stored in a storage unit (not shown), and an optimum SOC is selected from a plurality of SOC candidates. Even if there are some errors in the SOC candidate values, the actual use upper limit SOC can be updated more accurately.
- step S302 it has been described whether or not the number of candidates has reached the specified number. However, for example, it may be determined whether or not a predetermined time has elapsed since the start of charging. That is, the estimated SOC is stored in the storage unit every time the charge / discharge amount reaches the specified value for a predetermined time.
- FIG. 11 it is assumed that charging is performed by the same processing as in FIG. 9, that is, power generation by the internal combustion engine 107 and the generator 109.
- the optimum SOC candidate may be selected from the above, and the actual use upper limit SOC may be updated.
- HEV Hybrid Electric Vehicle: plug-in hybrid electric vehicle
- FCV Full Cell Vehicle: fuel cell
- PFCVs Plugin Fuel Cell Vehicles
- FIG. 12 is a block diagram showing the internal configuration of a series-type HEV.
- vehicle the series-type HEV (hereinafter simply referred to as “vehicle”) shown in FIG. 12, the driving force from the electric motor 205 using the capacitor 201 as a power source is transmitted to the driving wheels 229 via a gear box (gear) 215.
- gear box gear box
- the traveling mode of this vehicle is “EV traveling” or “series traveling”.
- EV traveling the vehicle travels by the driving force of an electric motor (MOT) 205 that is driven by power supply from a battery (BATT) 201.
- BATT battery
- the vehicle travels by the driving force of the electric motor 205 that is driven by the supply of electric power generated by the generator (GEN) 209 by the power supply from the capacitor 201 and the driving of the internal combustion engine 207.
- GEN generator
- the vehicle shown in FIG. 12 includes a battery (BATT) 201, a first inverter (first INV) 203, an electric motor (MOT) 205, a multi-cylinder internal combustion engine (ENG) 207, a generator (GEN) 209, 2 inverter (second INV) 211, gear box (hereinafter simply referred to as “gear”) 215, management ECU (MG ECU) 217, motor ECU (MOT ECU) 219, engine ECU (ENG ECU) 221, And a battery ECU (BATT ECU) 223.
- MG ECU management ECU
- MOT ECU motor ECU
- ENG ECU engine ECU
- BATT ECU battery ECU
- the storage battery 201 has a plurality of storage cells connected in series and supplies a high voltage of, for example, 100 to 200 V, and is mounted with a storage battery such as a lithium ion battery. Moreover, the full charge capacity of the battery 201 is different even with the same SOC depending on the degree of deterioration due to long-term use or the like.
- the first inverter 203 converts the DC voltage from the battery 201 into an AC voltage and supplies a three-phase current to the electric motor 205.
- the electric motor 205 generates power (torque) for the vehicle to travel. Torque generated by the electric motor 205 is transmitted to the drive shaft 227 of the drive wheel 229 via the gear 215.
- the multi-cylinder internal combustion engine (hereinafter simply referred to as “internal combustion engine”) 207 generates power (torque), and this power is consumed by the generator 209.
- the generator 209 is directly connected to the internal combustion engine 207.
- the generator 209 is driven by the internal combustion engine 207 to generate electric power.
- the electric power generated by the generator 209 is charged in the battery 201 or supplied to the electric motor 205.
- the second inverter 211 converts the AC voltage generated by the generator 209 into a DC voltage.
- the electric power converted by the second inverter 211 is charged in the battery 201 or supplied to the electric motor 205 via the first inverter 203.
- the gear 215 is a transmission that converts the driving force from the electric motor 205 into a rotation speed and torque at a desired gear ratio and transmits the converted torque to the drive shaft 227. Note that the gear 215 and the rotor of the electric motor 205 are directly connected.
- the management ECU 217 performs switching between EV traveling or series traveling, controlling the electric motor 205 and the internal combustion engine 207, and the like.
- the management ECU 217 also includes a requested driving force sensor (not shown) that detects information from a vehicle speed sensor (not shown) that detects the speed of the vehicle and a driving force of the vehicle that is requested by the driver such as the accelerator opening. ) Is input.
- the management ECU 217 performs control related to the calculation of at least one of the charge amount to the capacitor 201 and the discharge amount from the capacitor 201 (hereinafter referred to as charge / discharge amount) and the charge state (SOC: State of Charge) of the capacitor 201. Details of these will be described later.
- the charge / discharge amount is an energy amount.
- the motor ECU 219 controls the electric motor 205 in accordance with an instruction from the management ECU 217.
- the motor ECU 219 limits the current supplied from the capacitor 201 to the electric motor 205 when the vehicle speed restriction is instructed from the management ECU 217.
- the engine ECU 221 controls the start and stop of the internal combustion engine 207, throttle valve opening / closing control and fuel injection control in each cylinder, and the number of revolutions of the crankshaft of the internal combustion engine 207 in accordance with instructions from the management ECU 217.
- the temperature sensor 231 detects the temperature of the battery 201. Further, the voltage sensor 233 detects the voltage between the terminals of the battery 201.
- the current sensor 235 detects at least a charging current to the capacitor 201 and a discharging current from the capacitor 201 (hereinafter referred to as a charging / discharging current). These detections can be performed regularly, for example, and the detection timing can be set flexibly.
- the charger 237 receives power supply from an external power supply source 239 outside the vehicle, and converts an AC voltage into a DC voltage.
- External power supply source 239 is disposed in a charging stand or in the home, and supplies power to charger 237 to supply power having an alternating voltage to the vehicle.
- Battery ECU 223 estimates the state of charge (SOC) of battery 201 and sends information indicating the state to management ECU 217. At this time, the battery ECU 223 estimates the SOC of the battery 201 in real time based on the voltage detected by the voltage sensor 233. This estimation can be realized because there is a correlation between the SOC and the voltage of the capacitor 201.
- FIG. 13 is a diagram illustrating an example of the relationship between voltage and SOC. Further, the SOC may be estimated based on the current detected by the current sensor 235 or the temperature detected by the temperature sensor 231. For example, the SOC may be estimated by correcting the detected voltage with a detected current or a detected temperature. Furthermore, using the internal resistance value of the battery 201, the SOC may be estimated by the procedure shown in the flow of FIG.
- the management ECU 217 integrates the charge / discharge current detected by the current sensor 235 every predetermined period, thereby at least one of the charge amount to the capacitor 201 and the discharge amount from the capacitor 201 (hereinafter referred to as charge / discharge amount). Is calculated.
- This calculation method is called a current integration method. For example, the charge / discharge amount accumulated from the start of charging is calculated.
- FIG. 14 is a flowchart illustrating an example of an operation for the vehicle to estimate the SOC of the battery 201 using the internal resistance value.
- the management ECU 217 determines whether or not the ignition is turned on (step S401). If the ignition is not turned on, the processing in FIG. 14 is terminated.
- the battery ECU 223 detects the battery state of the battery 201 (step S402). Specifically, the temperature sensor 231 detects the temperature of the battery 201, the voltage sensor 233 detects the voltage of the battery 201, and the current sensor 235 controls to detect the charge / discharge current of the battery 201.
- the battery ECU 223 acquires the internal resistance value in advance or in real time (step S403).
- the battery ECU 223 obtains an internal resistance value measured in advance and stored in a storage unit (not shown) before starting the processing of FIG.
- it is the amount of change per predetermined time of the voltage V between terminals of the capacitor 201 based on the voltage V detected by the voltage sensor 233 and the current I detected by the current sensor 235.
- the actual voltage change amount dV and the actual current change amount dI that is the change amount per predetermined time of the charge / discharge current I of the battery 201 are sequentially calculated.
- the value of the slope in the linear expression representing the relationship between the actual voltage change amount dV and the actual current change amount dI is calculated by the successive least square method.
- the provisional value r of the resistance R is calculated.
- the provisional value r is corrected using the following (Equation 1).
- k represents time.
- R (k) r (k) + Ga1.
- [dV (k ⁇ 1) ⁇ R (k ⁇ 1) ⁇ dI (k ⁇ 1)] is the estimated value R (k ⁇ 1) of the already obtained internal resistance R (the time series of the estimated value).
- the latest value) and the actual current change amount dI (k-1) at the time k-1 are multiplied by the model value of the voltage change amount and the actual voltage change amount at the time k-1.
- Ga1 is a transfer function.
- the operation of multiplying the transfer function Ga1 by the deviation is an operation for obtaining a feedback manipulated variable so that the deviation converges to zero.
- the provisional value r of the internal resistance R is corrected by (Equation 1) so that the deviation converges to 0, thereby sequentially calculating the estimated value of the internal resistance R (k).
- the battery ECU 223 acquires the internal resistance R (k) at the current time k in real time.
- the battery ECU 223 estimates the open circuit voltage OCV of the battery 201 from the following (Equation 2) using the internal resistance value R (k) (step S403).
- k represents time.
- OCV (k) Ga2. [V (k)- ⁇ OCV (k-1) + R (k) .I (k) ⁇ ] .. (Formula 2)
- the value in [] on the right side of (Equation 2) is a value obtained by multiplying the estimated value R (k) of the internal resistance at the current time k by the charge / discharge current I (k) at the current time k.
- the detour Ga2 in (Equation 2) is a transfer function.
- the operation of multiplying the transfer function Ga2 by the deviation is an operation for obtaining the feedback manipulated variable so that the deviation converges to zero. Therefore, the open circuit voltage OCV (k) at the current time k is sequentially calculated so that the deviation converges to 0 by (Equation 2).
- the battery ECU 223 estimates the SOC of the battery 201 based on the estimated open circuit voltage OCV of the battery 201 (step S404).
- the relationship between the open circuit voltage OCV and the SOC is such that the SOC increases as the open circuit voltage OCV increases (generally proportional relationship), and the open circuit voltage OCV and the SOC are a pair. Corresponding to 1. Therefore, the SOC is estimated from the open circuit voltage OCV using FIG.
- the relationship shown in FIG. 15 is stored in advance in a storage unit (not shown) as an SOC-OCV table.
- the state of charge can be estimated more accurately without using the measurement result of the voltage sensor 233 that may change during traveling. .
- estimated SOC the SOC estimated based on the voltage and the SOC estimated based on the internal resistance are simply referred to as estimated SOC.
- the limit upper limit SOC and the usable lower limit SOC are set in advance, and the usable lower limit SOC is set as an SOC corresponding to the lowest voltage that satisfies the vehicle required output as an initial value.
- the vehicle required output is a minimum value of energy that can realize electric power discharge and electric power regeneration in the vehicle and is capable of running a general vehicle.
- the management ECU 217 sets the actual use upper limit SOC and the actual use lower limit SOC between the limit upper limit SOC and the usable lower limit SOC, and charges the battery 201 based on the estimated SOC and the charge / discharge amount. And the actual use upper limit SOC.
- the management ECU 217 sets the actual use lower limit SOC that satisfies the vehicle required output according to the internal resistance value of the battery 201.
- the actual use lower limit SOC is, for example, the same value as the usable lower limit SOC.
- the usable lower limit SOC cannot satisfy the vehicle required output.
- the actual use lower limit SOC is updated by the management ECU 217, the actual use lower limit SOC is always controlled to satisfy the vehicle request output (update of the actual use lower limit SOC).
- the management ECU 217 sets the SOC charged with a predetermined capacity from the usable lower limit SOC as the first actual use upper limit SOC (initial setting of the actual use upper limit SOC). Then, even if the capacity at the actual use upper limit SOC decreases due to the deterioration of the battery 201, the actual use upper limit SOC is updated upward from the usable lower limit SOC by the predetermined capacity so that the predetermined capacity can always be secured. (First update of actual use upper limit SOC).
- the predetermined capacity to be kept constant is also referred to as a target capacity.
- the management ECU 217 may update the actual use upper limit SOC according to the value of the actual use lower limit SOC (second update of the actual use upper limit SOC). In this case, the actual use upper limit SOC is the actual use lower limit SOC. To control the target capacity.
- 16 and 17 are diagrams showing the relationship between the SOC and output of the battery 201.
- the SOC corresponding to the lower limit output that satisfies the vehicle required output is set as the actual use lower limit SOC.
- the one that secures a predetermined use capacity from the actual use lower limit SOC is finally set as the actual use upper limit SOC.
- the SOC corresponding to the lower limit output that can satisfy the vehicle required output is the actual use lower limit SOC.
- the one that secures a predetermined use capacity from the actual use lower limit SOC is finally set as the actual use upper limit SOC.
- FIG. 18 is a diagram showing the relationship between the usage period of the battery 201, each SOC, capacity, and the like.
- FIG. 19 is a diagram showing the relationship between the usage period of the battery 201, each SOC, vehicle output, and the like. .
- the capacity of the battery 201 hardly deteriorates during the period from the initial use of the battery 201 until the guaranteed lifetime has elapsed. I understand.
- the vehicle output using the capacitor 201 is almost between the initial stage of use of the capacitor 201 and the end of the guaranteed lifetime. It turns out that it does not fall. At this time, the vehicle output (particularly the maximum output) is higher than the vehicle required output.
- FIG. 20 is a diagram showing an example of the relationship between the storage device usage period and the capacity of the storage device 201 at the actual use lower limit SOC of the storage device 201.
- the capacity of the actual use lower limit SOC is equal to or greater than a predetermined switching threshold (the lower limit capacity at which the output does not satisfy the vehicle required output). It cannot be secured at time t11.
- the management ECU 217 updates the actual use lower limit SOC in the upward direction.
- the management ECU 217 updates the actual use lower limit SOC again in the upward direction.
- the management ECU 217 repeats updating the actual use lower limit SOC when the capacity at the actual use lower limit SOC cannot secure the switching threshold. If this update is performed in a short cycle, the capacity fluctuation of the actual use lower limit SOC is reduced, and it is possible to prevent the vehicle behavior, for example, the driving distance for EV driving from changing rapidly without driving the ENG. is there.
- the management ECU 217 controls the actual use upper limit SOC and the actual use lower limit SOC, and charging the capacitor 201 between the actual use lower limit SOC and the actual use upper limit SOC as described above, thereby using the capacitor 201. Since the same capacity is used regardless of the number of years, even if the usable capacity of the battery decreases from the start of use of the battery 201, the electric travel ratio remains the same as when it is new while satisfying the vehicle required output. No longer feel uncomfortable. Further, since the SOC usage range of the battery is limited from the actual use lower limit SOC to the actual use upper limit SOC that is charged only by the target capacity ( ⁇ usable capacity), the battery 201 of the battery 201 is maintained by maintaining a high SOC state. It is possible to suppress deterioration.
- FIG. 21 is a flowchart showing an example of an operation for updating the actual use lower limit SOC.
- the management ECU 217 refers to the SOC-OCV table and obtains the OCV voltage corresponding to the current actual use lower limit SOC (step S501).
- This drop voltage ⁇ V indicates how much fluctuation (drop) occurs in the battery 201 due to the charge / discharge current.
- the management ECU 217 calculates a maximum output Pwmax (step S503).
- Pwmax (maximum output) ⁇ V (voltage drop) / R (internal resistance) ⁇ Vmin (protection lower limit voltage).
- the protection lower limit voltage is a predetermined minimum voltage of the battery 201 for protecting the battery 201.
- the maximum output is a vehicle output that can be output when the voltage drops by ⁇ V, and indicates the maximum output that can be output by the current actual use lower limit SOC.
- the management ECU 217 compares the maximum output with the vehicle request output (step S504). If the maximum output is smaller than the vehicle request output, the actual use lower limit SOC is updated in the upward direction (step S505). When the maximum output and the vehicle request output are equal, the actual use lower limit SOC is not updated (step S506). If the maximum output is greater than the vehicle request output, the actual use lower limit SOC is updated in the downward direction (step S507).
- FIG. 22 is a diagram showing an example of the relationship among the open circuit voltage OCV, the protection lower limit voltage (Vmin), and the vehicle required output when the SOC is the actual use lower limit SOC.
- Vmin protection lower limit voltage
- the maximum output is equal to or less than the vehicle required output
- the output that satisfies the vehicle required output is output before the voltage drop by ⁇ V from the open circuit voltage OCV at the actual use lower limit SOC.
- There is a margin in output Further, when the maximum output is larger than the vehicle required output, the output that satisfies the vehicle required output is not output even if the voltage drops by ⁇ V from the open circuit voltage OCV at the actual use lower limit SOC. Will be lacking in output. Further, when the maximum output is equal to the vehicle required output, an output that just satisfies the vehicle required output is made when the open circuit voltage OCV at the actual use lower limit SOC drops by the drop voltage ⁇ V.
- the actual use lower limit SOC is updated with the SOC at which the vehicle request output becomes the maximum output. Further, the difference (predicted arrival voltage) ⁇ V between the actual reached voltage ⁇ Vx indicating the voltage drop when the battery 201 outputs the required vehicle output, and the open circuit voltage OCV that can be allowed by the battery 201 and the protection lower limit voltage Vmin, Based on the above, the actual use lower limit SOC may be updated. For example, if the degradation state of the capacitor 201 is the same, the relationship between the output of the capacitor 101 and the voltage drop is considered to have the same slope of the linear function (with output margin and insufficient output) in FIG.
- each linear function is corrected so as to pass through the intersection K between the protection lower limit voltage line and the vehicle required output line, and the intersection between the left end of the graph (Y axis) and the corrected linear function is the actual use lower limit SOC.
- the actual use lower limit SOC may be updated so as to be the OCV voltage at the time.
- the updated actual use lower limit SOC is lower than the usable lower limit SOC
- the actual use lower limit SOC is finally updated to become the usable lower limit SOC.
- an updated value of the actual use lower limit SOC is determined based on the actual use upper limit SOC as described later with reference to FIG. May be.
- the actual use lower limit SOC is updated in the upward direction, while satisfying the vehicle required output, It is possible to charge the battery while suppressing the deterioration of the capacitor. Further, when there is a margin in the maximum output corresponding to the actual use lower limit SOC, the actual use lower limit SOC is updated in the downward direction, so that excessive charging of the battery 201 can be avoided, and it is more environmentally friendly. A vehicle can be provided.
- FIG. 23 is a flowchart illustrating an example of an operation for performing the first update of the actual use upper limit SOC in the present embodiment. In FIG. 23, it is assumed that charging is performed while the vehicle is running.
- step S604 After resetting the charge / discharge amount, power generation by the internal combustion engine 207 and the generator 209 is started based on a command from the management ECU 217, and charging of the battery 201 is started (step S604). After the start of charging, the management ECU 217 determines whether or not the estimated SOC has reached the actual use upper limit SOC of the battery 201 (step S605).
- the management ECU 217 determines whether or not the calculated charge / discharge amount is equal to or less than a specified value (step S606). When it is determined that the charge / discharge amount is greater than the specified value, the management ECU 217 controls to stop the charging of the battery 201 (step S611). When stopping charging, based on a command from the management ECU 217, power generation by the internal combustion engine 207 and the generator 209 is stopped, and charging of the battery 201 is stopped. The specified value to be compared with the charge / discharge amount is set in advance.
- the management ECU 217 controls to continue charging the battery 201 (step S607), and determines whether or not the calculated charge / discharge amount has reached the specified value ( Step S608). If it is determined that the specified value has not been reached, the management ECU 217 controls the battery 201 to continue charging.
- the management ECU 217 controls to stop the charging of the battery 201 (step S609). Then, the management ECU 217 updates the actual use upper limit SOC of the battery 201 to the estimated SOC of the battery 201 when the charging is stopped (step S610). Here, the actual use upper limit SOC is updated in the upward direction.
- step S605 determines whether or not the estimated SOC has not reached the actual use upper limit SOC.
- step S612 determines whether or not the calculated charge / discharge amount has reached a specified value.
- the management ECU 217 controls to stop the charging of the battery 201 (step S613). Then, the management ECU 217 updates the actual use upper limit SOC of the battery 201 to the estimated SOC of the battery 201 when the charging is stopped (step S614). Here, the actual use upper limit SOC is updated in the downward direction.
- charging can be performed while suppressing the progress of deterioration of the battery without giving the user a sense of incongruity during traveling and without performing unnecessary charging / discharging of the battery.
- the life of the capacitor 201 can be extended.
- the actual use upper limit SOC when the accumulated charge / discharge amount becomes the specified value in the processing of FIG. 23 may be accumulated as a plurality of samples, and the actual use upper limit SOC may be updated with an optimum one among the plurality of samples.
- charging is performed by the internal combustion engine 207 and the generator 209 during traveling of the vehicle, but a case of performing plug charging may be assumed.
- FIG. 24 is a flowchart illustrating an example of an operation for performing the second update of the actual use upper limit SOC in the present embodiment. The processing in FIG. 24 is performed after the processing in FIG. 21 and the processing in FIG.
- the management ECU 217 reads the actual use lower limit SOC (step S701).
- reading the actual use lower limit SOC means either obtaining the actual use lower limit SOC obtained in FIG. 21 (real time acquisition) or obtaining the actual use lower limit SOC from the SOCmap.
- the SOC map includes control information for setting the SOC of the battery 201 to a predetermined value, and is stored in advance in a storage unit (not shown).
- the management ECU 217 determines the updated value of the actual use lower limit SOC
- the management map 217 replaces the SOC map corresponding to the updated value.
- FIG. 25 is a diagram illustrating an example of the relationship between the actual use lower limit SOC and the SOCmap. In FIG.
- the management ECU 217 determines whether or not the read actual use lower limit SOC is equal to or higher than the usable lower limit SOC (step S702).
- the management ECU 217 sets the lift amount of the actual use upper limit SOC as a difference between the actual use lower limit SOC and the usable lower limit SOC (step S703).
- the management ECU 217 updates the actual use lower limit SOC with the value of the usable lower limit SOC (step S704), and increases the lift amount of the actual use upper limit SOC. 0 (that is, no lifting is performed) (step S705).
- the management ECU 217 reads the actual use upper limit SOC (step S706).
- reading the actual use upper limit SOC means either obtaining the actual use upper limit SOC obtained in FIG. 23 (real time acquisition) or obtaining the actual use upper limit SOC from the SOC map.
- This SOC map has the same information as the SOC map for the actual use lower limit SOC, and is applied to the actual use upper limit SOC.
- the management ECU 217 determines whether or not the value obtained by adding the lifting amount in step S703 or S705 (that is, the updated amount of the actual use lower limit SOC) to the read actual use upper limit SOC is equal to or less than the limit upper limit SOC. (Step S707). If it is equal to or less than the limit upper limit SOC, the management ECU 217 updates the actual use upper limit SOC with the sum of the actual use upper limit SOC and the lift amount (step S708). On the other hand, when it is larger than the limit upper limit SOC, the management ECU 217 updates the actual use upper limit SOC with the value of the limit upper limit SOC (step S709).
- the actual use upper limit SOC and the actual use lower limit SOC are reliably controlled between the limit upper limit SOC and the usable lower limit SOC, and the battery 201 can be charged safely.
- an area that affects the battery life can be avoided.
- the update amount of the second update of the actual use upper limit SOC is determined corresponding to the update amount of the actual use lower limit SOC, it is possible to always ensure the same capacity and maximum output, and the user feels uncomfortable. You will never feel.
- the battery life since the battery life is extended, the number of storage batteries to be mounted on the battery 201 can be reduced.
- the update of the actual use lower limit SOC based on the actual use upper limit SOC will be described.
- the updated value of the actual use lower limit SOC is determined based on the relationship between the maximum output and the vehicle request output, but the updated value of the actual use lower limit SOC is determined based on the actual use upper limit SOC. May be.
- FIG. 26 shows an actual use upper limit SOC-actual use lower limit SOC table, which is held in a storage unit (not shown).
- the actual use upper limit SOC is first updated by the process of FIG. 23, but the capacity between the actual use upper limit SOC and the actual use lower limit SOC becomes larger or smaller than the target capacity by the first update. There is a possibility of becoming. Therefore, this actual use upper limit-actual use lower limit SOC table shows a one-to-one correspondence between the actual use upper limit SOC and the actual use lower limit SOC so that the capacity between the actual use upper limit SOC and the actual use lower limit SOC becomes the target capacity. It corresponds to.
- the management ECU 217 updates the actual use lower limit SOC based on the update amount of the actual use upper limit SOC with reference to the actual use upper limit SOC-actual use lower limit SOC table in FIG. 26 together with the update timing of the actual use upper limit SOC. Determine the later value.
- the actual use upper limit SOC is updated by the same lift amount as the actual use upper limit SOC.
- the target capacity can be kept constant without performing special processing, so that the battery can be charged while suppressing the progress of deterioration of the battery.
- control is performed so that the updated value of the actual use lower limit SOC does not fall below the usable lower limit SOC. For example, when it is predicted that the value will fall below the usable lower limit SOC due to the update, the value of the usable lower limit SOC is updated and set as the actual usable lower limit SOC.
- the management ECU 217 may update the actual use lower limit SOC based on the temperature detected by the temperature sensor 231.
- the contents processed by the management ECU 217 (such as charging and SOC control) may be processed by the battery ECU 223.
- the HEV has been described.
- other electric vehicles such as EV (Electric Vehicle), PHEV (Plugin Hybrid Electric Vehicle), FCV (Fuel Cell Vehicle) are described.
- Fuel cell vehicle Fuel cell vehicle
- PFCV Plugin Fuel Cell Vehicle: plug-in fuel cell vehicle
- other electric vehicles the present invention can be applied.
- the present invention is useful for a charge control device and the like that can be charged while suppressing the progress of deterioration of the capacitor without performing unnecessary charging and discharging of the capacitor.
- the present invention is useful for a charge control device or the like that can charge while suppressing the progress of deterioration of the battery while satisfying the vehicle required output.
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Abstract
Description
また、車両要求出力を満たしながら、蓄電器の劣化の進行を抑制して充電することが可能な充電制御装置を提供することを目的とする。
本発明の第1の実施形態における充電制御装置について、図面を参照しながら以下に説明する。
本発明の実施形態における充電制御装置について、図面を参照しながら以下に説明する。
また、リアルタイムで取得する場合には、電圧センサ233により検出された電圧Vと電流センサ235により検出された電流Iとに基づいて、蓄電器201の端子間電圧Vの所定時間あたりの変化量である実電圧変化量dVと、蓄電器201の充放電電流Iの所定時間あたりの変化量である実電流変化量dIとを逐次算出する。さらに、算出した実電圧変化量dVと実電流変化量dIとから、逐次最小二乗法により、実電圧変化量dVと実電流変化量dIとの間の関係を表す一次式における傾きの値を内部抵抗Rの仮値rとして算出する。そして、下記の(式1)を用いて仮値rを補正する。なお、kは時刻を表す。
R(k)=r(k)+Ga1・[dV(k-1)-R(k-1)・dI(k-1)]・・・(式1)
ここで、[dV(k-1)-R(k-1)・dI(k-1)]は、既に求めた内部抵抗Rの推定値R(k-1)(当該推定値の時系列のうち最新の値)とその時刻k-1での実電流変化量dI(k-1)とを乗じることにより算出される電圧変化量のモデル値と、その時刻k-1での実電圧変化量dV(k-1)との偏差である。また、Ga1は伝達関数である。この場合、伝達関数Ga1に当該偏差を乗じる演算は、当該偏差を0に収束させるように、フィードバック操作量を求める演算である。
従って、(式1)によって、内部抵抗Rの仮値rを、当該偏差を0に収束させるように補正し、これによって、内部抵抗R(k)の推定値を逐次算出する。バッテリECU223は、現在時刻kにおける内部抵抗R(k)をリアルタイムで取得することになる。
OCV(k)=Ga2・[V(k)―{OCV(k-1)+R(k)・I(k)}]・・
・(式2)
ここで、(式2)の右辺の[ ]内の値は、現在時刻kでの内部抵抗の推定値R(k)と現在時刻kでの充放電電流I(k)とを乗じた値に、既に求めた開路電圧OCVの推定値OCV(k-1)を加算することにより算出される蓄電器201の端子間電圧のモデル値と、現在時刻kでの端子間電圧V(k)との偏差である。そして、(式2)の迂遠のGa2は伝達関数である。この場合、伝達関数Ga2に当該偏差を乗じる演算は、当該偏差を0に収束させるように、フィードバック操作量を求める演算である。
従って、(式2)によって、当該偏差を0に収束させるように、現在時刻kにおける開路電圧OCV(k)を逐次算出する。
図21は実使用下限SOCの更新を行うための動作の一例を示すフローチャートである。
図23は、本実施形態における実使用上限SOCの第1の更新を行うための動作の一例を示すフローチャートである。図23では、車両の走行中に充電を行うことを想定している。
図24は、本実施形態における実使用上限SOCの第2の更新を行うための動作の一例を示すフローチャートである。図24の処理は、図21の処理及び図23の処理後に行われる。
図21の処理では、最大出力と車両要求出力との関係に基づいて実使用下限SOCの更新後の値を決定したが、実使用上限SOCに基づいて実使用下限SOCの更新後の値を決定してもよい。
また、本実施形態では、マネジメントECU217が処理している内容(充電やSOC制御など)は、バッテリECU223により処理するようにしてもよい。
本出願は、2008年11月21日出願の日本特許出願No.2008-298216及び2009年3月17日出願の日本特許出願No.2009-064381に基づくものであり、その内容はここに参照として取り込まれる。
また、本発明は、車両要求出力を満たしながら、蓄電器の劣化の進行を抑制して充電することが可能な充電制御装置等に有用である。
103 第1インバータ(第1INV)
105 電動機(MOT)
107 内燃機関(ENG)
109 発電機(GEN)
111 第2インバータ(第2INV)
115 ギア
117 マネジメントECU(MG ECU)
119 モータECU(MOT ECU)
121 エンジンECU(ENG ECU)
123 バッテリECU(BATT ECU)
127 駆動軸
129 駆動輪
131 温度センサ
133 電圧センサ
135 電流センサ
137 充電器
139 外部電力供給源
201 蓄電器(BATT)
203 第1インバータ(第1INV)
205 電動機(MOT)
207 内燃機関(ENG)
209 発電機(GEN)
211 第2インバータ(第2INV)
215 ギア
217 マネジメントECU(MG ECU)
219 モータECU(MOT ECU)
221 エンジンECU(ENG ECU)
223 バッテリECU(BATT ECU)
227 駆動軸
229 駆動輪
231 温度センサ
233 電圧センサ
235 電流センサ
237 充電器
239 外部電力供給源
Claims (20)
- 充電可能な蓄電器の充電制御装置であって、
前記蓄電器の電圧を検出する電圧検出部と、
前記蓄電器の充放電電流を検出する電流検出部と、
前記電圧検出部により検出された電圧に基づいて、前記蓄電器の蓄電容量を推定する蓄電容量推定部と、
前記電流検出部により検出された充放電電流を積算することによって、前記蓄電器の充電開始からの充放電量を算出する充放電量算出部と、
前記蓄電容量推定部によって推定された前記蓄電器の蓄電容量及び前記充放電量算出部によって算出された前記蓄電器の充放電量に基づいて、前記蓄電器の充電を制御する充電制御部と
を備え、
前記充電制御部は、前記蓄電器の状態特性に基づき、前記蓄電容量推定部によって推定された蓄電容量を実使用上限蓄電容量に更新設定する充電制御装置。 - 請求項1に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電器の充電を行う際、前記充放電量算出部により算出された充放電量が所定値に到達する状態特性時に、前記蓄電容量推定部によって推定された蓄電容量を前記実使用上限蓄電容量に更新設定する充電制御装置。 - 請求項2に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電器の充電を行う際、前記蓄電容量推定部によって推定された蓄電容量が前記使用可能下限蓄電容量であるときから前記充放電量算出部により算出された充放電量が前記所定値に到達したときの、前記蓄電容量推定部によって推定された蓄電容量を前記実使用上限蓄電容量に設定する第1充電モードを実行する充電制御装置。 - 請求項3に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電容量推定部により推定された蓄電容量が前記実使用上限蓄電容量に到達しても、前記充放電量算出部により算出された充放電量が所定値に到達するまで、前記蓄電器の充電を行うよう制御する充電制御装置。 - 請求項3に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電容量推定部により推定された蓄電容量が前記実使用上限蓄電容量に到達していないが、前記充放電量算出部により算出された充放電量が所定値に到達したときには、前記蓄電器の充電を停止するよう制御する充電制御装置。 - 請求項3~5のいずれか一項に記載の充電制御装置であって、
前記充放電量が所定値に到達する毎に前記蓄電容量推定部によって推定された蓄電容量を記憶する記憶部を備え、
前記充電制御部は、前記記憶部が記憶する蓄電容量に基づいて前記実使用上限蓄電容量を設定する充電制御装置。 - 請求項6に記載の充電制御装置であって、
前記記憶部は、前記充放電量が前記所定値に到達するたびに推定された所定数の蓄電容量を記憶する充電制御装置。 - 請求項6に記載の充電制御装置であって、
前記記憶部は、所定時間の間、前記充放電量が前記所定値に到達するたびに推定された所定数の蓄電容量を記憶する充電制御装置。 - 請求項2、4~8のいずれか一項に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電容量推定部により推定された蓄電容量が、前記使用可能下限蓄電容量よりも大きい状態で前記蓄電器への充電が開始される場合において第2充電モードを実行し、
前記第2充電モードでは、前記充電開始時における、前記実使用上限蓄電容量と、前記使用可能下限蓄電容量と、前記蓄電容量推定部により推定された蓄電容量と、および前記所定値と、に基づき充電開始時の前記蓄電器の残存量を推定し、
当該充電制御装置は、
前記蓄電器の充電を行う際、前記充放電量として前記残存量を含む充電制御装置。 - 請求項9に記載の充電制御装置であって、
前記第2充電モードは、前記蓄電器が当該蓄電器が搭載される車両外の外部電源と接続されたときに実行され、
前記残存量は、前記蓄電器と前記外部電源との接続時における、前記実使用上限蓄電容量をB、前記使用可能下限蓄電容量をC、前記蓄電容量推定部により推定された蓄電容量をX、および前記所定値をAとした場合、(X-C)/(B-C)×Aで推定される充電制御装置。 - 請求項2~10のいずれか一項に記載の充電制御装置であって、
限界上限蓄電容量が初期設定されており、
前記充電制御部は、
前記実使用上限可能蓄電容量が前記限界上限蓄電容量を超えた場合、前記蓄電器に故障が発生したものと推定し、その旨を通知部に通知させる充電制御装置。 - 請求項1に記載の充電制御装置であって、更に、
前記蓄電器の内部抵抗を推定する内部抵抗推定部を備え、
前記充電制御部は、
前記内部抵抗推定部により推定された内部抵抗による状態特性に基づいて、前記蓄電器の使用可能下限蓄電容量より大きく限界上限蓄電容量以下の値であり前記蓄電器が搭載された車両の車両要求出力を満たす値を実使用下限蓄電容量として設定し、前記実使用下限蓄電容量以上の蓄電容量を維持して前記蓄電器の充電を行う充電制御装置。 - 請求項12に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電器の前記実使用下限蓄電容量より大きく前記限界上限蓄電容量以下の値を実使用上限蓄電容量として設定して、前記実使用下限蓄電容量と前記実使用上限蓄電容量との間で前記蓄電器の充電を行う充電制御装置。 - 請求項12または13に記載の充電制御装置であって、
前記充電制御部は、
前記蓄電器の蓄電容量が前記実使用下限蓄電容量であるときの最大出力が、前記車両要求出力と異なるとき、前記車両要求出力が最大出力となる蓄電容量で前記実使用下限蓄電容量を更新する充電制御装置。 - 請求項14に記載の充電制御装置であって、
前記充電制御部は、前記蓄電器の蓄電容量が前記実使用下限蓄電容量であるときの最大出力が、前記車両要求出力を満たさないとき、前記車両要求出力が最大出力となる蓄電容量で前記実使用下限蓄電容量を更新する充電制御装置。 - 請求項14に記載の充電制御装置であって、
前記充電制御部は、前記蓄電器の蓄電容量が前記実使用下限蓄電容量であるときの最大出力が、前記車両要求出力よりも大きいとき、前記車両要求出力が最大出力となる蓄電容量で前記実使用下限蓄電容量を更新する充電制御装置。 - 請求項12~16のいずれか一項に記載の充電制御装置であって、更に、
前記蓄電器の蓄電容量と前記蓄電器の開路電圧とが関連付けられた第1情報を記憶する記憶部を備え、
前記充電制御部は、
前記記憶部により記憶された第1情報に基づいて、前記蓄電器の蓄電容量が前記実使用下限蓄電容量であるときの前記蓄電器の開路電圧を推定し、
前記蓄電器が前記車両要求出力分の出力を行ったときの降下電圧を示す実到達電圧と、前記推定した開路電圧と前記蓄電器を保護するための所定の保護下限電圧との差を示す予測到達電圧と、に基づいて、前記実使用下限蓄電容量を更新する充電制御装置。 - 請求項12~17のいずれか一項に記載の充電制御装置であって、更に、
前記蓄電器の温度を検出する温度検出部を備え、
前記充電制御部は、前記温度検出部により検出された温度に基づいて、前記実使用下限蓄電容量を更新する充電制御装置。 - 請求項13~18のいずれか一項に記載の充電制御装置であって、
前記充電制御部は、前記実使用下限蓄電容量の更新量に基づいて、前記実使用上限蓄電容量を更新する充電制御装置。 - 請求項13~18のいずれか一項に記載の充電制御装置であって、更に、
前記実使用下限蓄電容量と前記実使用上限蓄電容量とが対応づけられた第2情報を記憶する記憶部を備え、
前記充電制御部は、前記記憶部に記憶された第2情報を参照し、前記実使用上限蓄電容量の更新量に基づいて、前記実使用下限蓄電容量を更新する充電制御装置。
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BRPI0921390A BRPI0921390A2 (pt) | 2008-11-21 | 2009-11-20 | controlador de carga |
CN2009801434880A CN102204004B (zh) | 2008-11-21 | 2009-11-20 | 充电控制装置 |
EP09827620.7A EP2352199B1 (en) | 2008-11-21 | 2009-11-20 | Charge control device |
US13/130,031 US8674664B2 (en) | 2008-11-21 | 2009-11-20 | Charge controller |
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EP (1) | EP2352199B1 (ja) |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012008462A1 (ja) * | 2010-07-13 | 2012-01-19 | 本田技研工業株式会社 | 蓄電容量管理装置 |
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JP2014063576A (ja) * | 2012-09-20 | 2014-04-10 | Sekisui Chem Co Ltd | 蓄電池管理装置、蓄電池管理方法及びプログラム |
US20150083505A1 (en) * | 2010-12-17 | 2015-03-26 | Tesla Motors, Inc. | Integrated electric motor assembly |
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JP2021535721A (ja) * | 2019-01-04 | 2021-12-16 | エルジー・ケム・リミテッド | バッテリー管理方法、バッテリー装置、およびバッテリーを含む自動車 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9037426B2 (en) * | 2011-05-13 | 2015-05-19 | GM Global Technology Operations LLC | Systems and methods for determining cell capacity values in a multi-cell battery |
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CN115480165B (zh) * | 2022-09-16 | 2024-03-22 | 中国第一汽车股份有限公司 | 一种动力电池许用压差的计算方法及装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000125415A (ja) | 1998-10-15 | 2000-04-28 | Nissan Motor Co Ltd | ハイブリッド車両 |
JP2000287372A (ja) | 1999-03-31 | 2000-10-13 | Hitachi Ltd | リチウムイオン2次電池の使用方法及びリチウムイオン2次電池を用いた装置 |
JP2002199616A (ja) | 2000-12-21 | 2002-07-12 | Canon Inc | 充電制御装置、充放電制御装置、情報処理装置、充電制御方法、充放電制御方法及び記憶媒体 |
JP2003092836A (ja) * | 2001-09-19 | 2003-03-28 | Internatl Business Mach Corp <Ibm> | 電気機器、コンピュータ装置、インテリジェント電池、総容量補正方法、劣化量認識方法、およびプログラム |
JP2003132955A (ja) * | 2001-10-23 | 2003-05-09 | Nec Yonezawa Ltd | 非水電解質二次電池の充放電方法 |
JP2007323999A (ja) | 2006-06-01 | 2007-12-13 | Fuji Heavy Ind Ltd | 自動車のバッテリ制御装置 |
JP2008170196A (ja) * | 2007-01-10 | 2008-07-24 | Yamaha Motor Co Ltd | バッテリの容量管理装置 |
JP2008298216A (ja) | 2007-06-01 | 2008-12-11 | Sankoo:Kk | コルゲート管継手 |
JP2009064381A (ja) | 2007-09-10 | 2009-03-26 | Dainippon Printing Co Ltd | 積層型icタグとその製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3829453B2 (ja) | 1998-01-20 | 2006-10-04 | ソニー株式会社 | リチウムイオン電池の充電装置及び充電方法 |
JP3676154B2 (ja) | 1999-11-29 | 2005-07-27 | 三洋電機株式会社 | 組電池の充放電制御方法 |
JP4786058B2 (ja) | 2001-05-01 | 2011-10-05 | 本田技研工業株式会社 | 蓄電装置の残容量検出装置 |
JP2004166350A (ja) | 2002-11-11 | 2004-06-10 | Toyota Motor Corp | 電池制御装置 |
JP2004271410A (ja) | 2003-03-11 | 2004-09-30 | Hitachi Ltd | 電気車のバッテリ制御装置 |
JP3997965B2 (ja) | 2003-07-29 | 2007-10-24 | トヨタ自動車株式会社 | 組電池の充放電制御装置および方法、プログラム、電池制御システム |
JP2005065352A (ja) | 2003-08-11 | 2005-03-10 | Nissan Motor Co Ltd | バッテリ充放電制御装置 |
JP4692246B2 (ja) | 2005-11-29 | 2011-06-01 | 日産自動車株式会社 | 二次電池の入出力可能電力推定装置 |
JP2008087516A (ja) | 2006-09-29 | 2008-04-17 | Toyota Motor Corp | ハイブリッド車両およびハイブリッド車両の走行制御方法 |
-
2009
- 2009-11-20 CN CN2009801434880A patent/CN102204004B/zh active Active
- 2009-11-20 WO PCT/JP2009/069708 patent/WO2010058839A1/ja active Application Filing
- 2009-11-20 BR BRPI0921390A patent/BRPI0921390A2/pt not_active Application Discontinuation
- 2009-11-20 EP EP09827620.7A patent/EP2352199B1/en not_active Not-in-force
- 2009-11-20 US US13/130,031 patent/US8674664B2/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000125415A (ja) | 1998-10-15 | 2000-04-28 | Nissan Motor Co Ltd | ハイブリッド車両 |
JP2000287372A (ja) | 1999-03-31 | 2000-10-13 | Hitachi Ltd | リチウムイオン2次電池の使用方法及びリチウムイオン2次電池を用いた装置 |
JP2002199616A (ja) | 2000-12-21 | 2002-07-12 | Canon Inc | 充電制御装置、充放電制御装置、情報処理装置、充電制御方法、充放電制御方法及び記憶媒体 |
JP2003092836A (ja) * | 2001-09-19 | 2003-03-28 | Internatl Business Mach Corp <Ibm> | 電気機器、コンピュータ装置、インテリジェント電池、総容量補正方法、劣化量認識方法、およびプログラム |
JP2003132955A (ja) * | 2001-10-23 | 2003-05-09 | Nec Yonezawa Ltd | 非水電解質二次電池の充放電方法 |
JP2007323999A (ja) | 2006-06-01 | 2007-12-13 | Fuji Heavy Ind Ltd | 自動車のバッテリ制御装置 |
JP2008170196A (ja) * | 2007-01-10 | 2008-07-24 | Yamaha Motor Co Ltd | バッテリの容量管理装置 |
JP2008298216A (ja) | 2007-06-01 | 2008-12-11 | Sankoo:Kk | コルゲート管継手 |
JP2009064381A (ja) | 2007-09-10 | 2009-03-26 | Dainippon Printing Co Ltd | 積層型icタグとその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2352199A4 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012008462A1 (ja) * | 2010-07-13 | 2012-01-19 | 本田技研工業株式会社 | 蓄電容量管理装置 |
JP5608747B2 (ja) * | 2010-07-13 | 2014-10-15 | 本田技研工業株式会社 | 蓄電容量管理装置 |
US9343920B2 (en) | 2010-07-13 | 2016-05-17 | Honda Motor Co., Ltd. | Storage capacity management system |
US20150083505A1 (en) * | 2010-12-17 | 2015-03-26 | Tesla Motors, Inc. | Integrated electric motor assembly |
US9692277B2 (en) * | 2010-12-17 | 2017-06-27 | Tesla, Inc. | Integrated electric motor assembly |
CN103085678A (zh) * | 2011-11-03 | 2013-05-08 | 现代自动车株式会社 | 车辆的电池管理系统和方法 |
JP2014063576A (ja) * | 2012-09-20 | 2014-04-10 | Sekisui Chem Co Ltd | 蓄電池管理装置、蓄電池管理方法及びプログラム |
CN107482729A (zh) * | 2017-09-04 | 2017-12-15 | 深圳支点电子智能科技有限公司 | 一种充电的方法及充电器 |
JP2021535721A (ja) * | 2019-01-04 | 2021-12-16 | エルジー・ケム・リミテッド | バッテリー管理方法、バッテリー装置、およびバッテリーを含む自動車 |
JP7207817B2 (ja) | 2019-01-04 | 2023-01-18 | エルジー エナジー ソリューション リミテッド | バッテリー管理方法、バッテリー装置、およびバッテリーを含む自動車 |
US11999257B2 (en) | 2019-01-04 | 2024-06-04 | Lg Energy Solution, Ltd. | Battery management method, battery device, and vehicle comprising battery device |
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CN102204004B (zh) | 2013-11-20 |
US8674664B2 (en) | 2014-03-18 |
EP2352199B1 (en) | 2015-08-26 |
EP2352199A1 (en) | 2011-08-03 |
EP2352199A4 (en) | 2012-09-26 |
US20110221400A1 (en) | 2011-09-15 |
CN102204004A (zh) | 2011-09-28 |
BRPI0921390A2 (pt) | 2015-12-29 |
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