WO2013051104A1 - 充電制御装置および充電制御方法 - Google Patents
充電制御装置および充電制御方法 Download PDFInfo
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- WO2013051104A1 WO2013051104A1 PCT/JP2011/072838 JP2011072838W WO2013051104A1 WO 2013051104 A1 WO2013051104 A1 WO 2013051104A1 JP 2011072838 W JP2011072838 W JP 2011072838W WO 2013051104 A1 WO2013051104 A1 WO 2013051104A1
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- power storage
- storage device
- charging
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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
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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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
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00716—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to integrated charge or discharge current
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a technology for appropriately limiting charging according to the state of a power storage device.
- Patent Document 1 discloses a technique for avoiding overcharge / discharge of a battery by determining an upper limit value of the charge / discharge power of the battery according to the battery temperature.
- the upper limit value of the charging power of the battery is determined based on the battery temperature, especially in a low temperature environment, even if the charging control is not properly performed due to an abnormality in the charging system, the battery temperature does not exceed the allowable temperature. As long as it does not exceed, there is a problem that charging cannot be appropriately restricted. In addition, when charging control is not properly performed, it is desirable to quickly stop charging.
- An object of the present invention is to provide a charge control device and a charge control method that appropriately limit charging and quickly stop charging when an abnormality occurs in the charging system.
- a charge control device is a charge control device for controlling charging of a power storage device for supplying electric power to an electric device.
- the charging control device detects a temperature of the power storage device, and when the temperature of the power storage device increases due to charging of the power storage device, the charge control device decreases the upper limit value of the charging power of the power storage device.
- control device reduces the upper limit value of the charging power when the temperature increase rate of the power storage device is greater than the first threshold value, compared to when the increase rate is less than the first threshold value.
- control device determines the first threshold value such that the first threshold value is higher when the temperature of the power storage device is high than when the temperature of the power storage device is low.
- the detection device detects temperatures at a plurality of locations of the power storage device.
- the control device reduces the upper limit value of the charging power when the temperature increase rate of any one of the plurality of locations is larger than the first threshold value.
- control device is a case where the charging is continued until the integrated current value to the power storage device after the upper limit value of the charging power is reduced becomes larger than a predetermined value, and the temperature of the power storage device When the rising speed of the battery does not become smaller than the second threshold value, it is determined that the power storage device is in an overcharge state.
- the second threshold value is a value equal to or less than the first threshold value.
- control device releases the lowering of the upper limit value of the charging power in at least one of the case where the rising speed is lower than the second threshold value and the case where the power storage device is discharged. To do.
- control device stops the charging of the power storage device when it is determined that the power storage device is in an overcharged state.
- the power storage device is provided with a cooling device for cooling the power storage device.
- the control device does not change the operation amount of the cooling device while lowering the upper limit value when the cooling device is operating when the temperature of the power storage device increases due to charging of the power storage device.
- the power storage device is provided with a cooling device for cooling the power storage device.
- the control device does not determine whether or not the power storage device is in an overcharged state when the operation of the cooling device starts.
- the control device decreases the upper limit value of the charging power and lowers the upper limit value of the discharge power of the power storage device.
- the charge control device is mounted on a vehicle having a drive motor.
- the power storage device exchanges power with the drive motor.
- a charge control method is a charge control method for controlling charging of a power storage device for supplying electric power to an electrical device.
- This charging control method includes a step of lowering the upper limit value of the charging power of the power storage device when the temperature of the power storage device increases due to charging of the power storage device, and a case where charging continues with the upper limit value lowered. And determining that the power storage device is in an overcharged state when the temperature of the power storage device continues to rise.
- the upper limit value of the charging power of the power storage device is appropriately limited even when the temperature of the power storage device is low by reducing the upper limit value of the charging power according to the temperature rise of the power storage device due to charging. be able to. Furthermore, when charging continues in a state where the upper limit value is lowered, when the temperature rise of the power storage device continues, it can be determined that the power storage device is in an overcharged state. By specifying that the power storage device is in an overcharged state, charging can be quickly stopped. Therefore, it is possible to provide a charge control device and a charge control method that appropriately limit charging and promptly stop charging when an abnormality occurs in the charging system.
- FIG. 1 is an overall block diagram of a vehicle according to an embodiment. It is a functional block diagram of ECU mounted in the vehicle which concerns on this Embodiment. It is a figure which shows the relationship between the battery temperature and threshold value in this Embodiment. It is a flowchart which shows the control structure of the program performed with ECU mounted in the vehicle which concerns on this Embodiment. It is a timing chart (the 1) for explaining operation of ECU mounted in vehicles concerning this embodiment. It is a timing chart (2) for demonstrating operation
- the vehicle 1 includes an engine 10, a drive shaft 16, a first motor generator (hereinafter referred to as a first MG) 20, a second motor generator (hereinafter referred to as a second MG) 30, and a power split device 40.
- the vehicle 1 travels by driving force output from at least one of the engine 10 and the second MG 30.
- the power generated by the engine 10 is divided into two paths by the power split device 40.
- One of the two routes is a route transmitted to the drive wheel 80 via the speed reducer 58, and the other route is a route transmitted to the first MG 20.
- the first MG 20 and the second MG 30 are, for example, three-phase AC rotating electric machines.
- First MG 20 and second MG 30 are driven by PCU 60.
- the first MG 20 has a function as a generator that generates power using the power of the engine 10 divided by the power split device 40 and charges the battery 70 via the PCU 60. Further, first MG 20 receives electric power from battery 70 and rotates a crankshaft that is an output shaft of engine 10. Thus, the first MG 20 has a function as a starter for starting the engine 10.
- the second MG 30 has a function as a driving motor that applies driving force to the driving wheels 80 using at least one of the electric power stored in the battery 70 and the electric power generated by the first MG 20. Second MG 30 also has a function as a generator for charging battery 70 via PCU 60 using electric power generated by regenerative braking.
- the engine 10 is an internal combustion engine such as a gasoline engine or a diesel engine.
- the engine 10 includes a plurality of cylinders 102 and a fuel injection device 104 that supplies fuel to each of the plurality of cylinders 102.
- One or more cylinders 102 may be provided.
- the fuel injection device 104 injects an appropriate amount of fuel to each cylinder at an appropriate time based on a control signal S1 from the ECU 200, or stops fuel injection to each cylinder.
- an engine rotation speed sensor 11 is provided at a position facing the crankshaft of the engine 10.
- the engine rotation speed sensor 11 detects the rotation speed Ne (hereinafter referred to as engine rotation speed) Ne of the crankshaft of the engine 10.
- the engine rotation speed sensor 11 transmits a signal indicating the detected engine rotation speed Ne to the ECU 200.
- the power split device 40 is a power transmission device that mechanically connects each of the three elements of the drive shaft 16 connected to the drive wheels 80, the output shaft of the engine 10, and the rotation shaft of the first MG 20.
- the power split device 40 enables transmission of power between the other two elements by using any one of the three elements described above as a reaction force element.
- the rotation shaft of second MG 30 is connected to drive shaft 16.
- the power split device 40 is a planetary gear mechanism including a sun gear 50, a pinion gear 52, a carrier 54, and a ring gear 56.
- Pinion gear 52 meshes with each of sun gear 50 and ring gear 56.
- the carrier 54 supports the pinion gear 52 so as to be capable of rotating, and is connected to the crankshaft of the engine 10.
- Sun gear 50 is coupled to the rotation shaft of first MG 20.
- Ring gear 56 is coupled to the rotation shaft of second MG 30 and reduction gear 58 via drive shaft 16.
- Reduction gear 58 transmits power from power split device 40 and second MG 30 to drive wheels 80. Reducer 58 transmits the reaction force from the road surface received by drive wheels 80 to power split device 40 and second MG 30.
- PCU 60 converts the DC power stored in battery 70 into AC power for driving first MG 20 and second MG 30.
- PCU 60 includes a converter and an inverter (both not shown) controlled based on control signal S2 from ECU 200.
- the converter boosts the voltage of the DC power received from battery 70 and outputs it to the inverter.
- the inverter converts the DC power output from the converter into AC power and outputs the AC power to first MG 20 and / or second MG 30.
- first MG 20 and / or second MG 30 are driven using the electric power stored in battery 70.
- the inverter converts AC power generated by the first MG 20 and / or the second MG 30 into DC power and outputs the DC power to the converter.
- the converter steps down the voltage of the DC power output from the inverter and outputs the voltage to battery 70. Thereby, battery 70 is charged using the electric power generated by first MG 20 and / or second MG 30.
- the converter may be omitted.
- the battery 70 is a power storage device and a rechargeable DC power source.
- a secondary battery such as nickel metal hydride or lithium ion is used.
- the voltage of the battery 70 is about 200V, for example.
- Battery 70 may be charged using electric power supplied from an external power source (not shown) in addition to being charged using electric power generated by first MG 20 and / or second MG 30 as described above.
- the battery 70 is not limited to a secondary battery, and may be any power storage device having a characteristic that the temperature rise continues when charging continues in an overcharged state.
- the power storage device may be a capacitor as long as it has the above characteristics.
- the battery 70 is provided with a battery temperature sensor 156, a current sensor 158, and a voltage sensor 160.
- Battery temperature sensor 156 detects battery temperature TB of battery 70. Battery temperature sensor 156 transmits a signal indicating battery temperature TB to ECU 200.
- the battery temperature sensor 156 may include a plurality of temperature sensors. For example, the plurality of temperature sensors are provided at a plurality of locations so that the temperature distribution of the entire battery 70 can be detected. The plurality of temperature sensors may be provided for each battery cell or each battery module. The plurality of temperature sensors transmit each of the detected battery temperatures at a plurality of locations to the ECU 200.
- the current sensor 158 detects the current IB of the battery 70.
- Current sensor 158 transmits a signal indicating current IB to ECU 200.
- the voltage sensor 160 detects the voltage VB of the battery 70. Voltage sensor 160 transmits a signal indicating voltage VB to ECU 200.
- ECU 200 estimates the remaining capacity of battery 70 (described as SOC (State Of Charge) in the following description) based on current IB of battery 70, voltage VB, and battery temperature TB. For example, ECU 200 estimates an OCV (Open Circuit Voltage) based on current IB, voltage VB, and battery temperature TB, and estimates the SOC of battery 70 based on the estimated OCV and a predetermined map. Also good. Alternatively, ECU 200 may estimate the SOC of battery 70 by, for example, integrating the charging current and discharging current of battery 70.
- SOC State Of Charge
- the ECU 200 controls the charge amount and discharge amount of the battery 70 based on the battery temperature TB and the current SOC, and the upper limit value of input power allowed when the battery 70 is charged (in the following description, “charge” And an upper limit value of output power allowed when the battery 70 is discharged (denoted as “discharge power upper limit value Wout” in the following description).
- the discharge power upper limit Wout is gradually set lower.
- charging power upper limit value Win is set to gradually decrease.
- the discharge power upper limit value Wout and the charge power upper limit value Win are both described as positive values for convenience of explanation, but the discharge power upper limit value Wout is a positive value and the charge power upper limit value Win is negative. It may be a value.
- the secondary battery used as the battery 70 has a temperature dependency in which the internal resistance increases at a low temperature. Further, at a high temperature, it is necessary to prevent the temperature from excessively rising due to further heat generation. For this reason, it is preferable to reduce each of the discharge power upper limit value Wout and the charge power upper limit value Win when the battery temperature TB is low and high. ECU 200 sets charge power upper limit value Win and discharge power upper limit value Wout by using, for example, a map or the like according to battery temperature TB and the current SOC.
- the cooling device 72 cools the battery 70.
- Cooling device 72 includes, for example, a cooling fan and a cooling duct.
- the cooling device 72 operates the cooling fan to cool the battery 70 by supplying air sucked through the cooling duct to the battery 70.
- the air inlet of the cooling duct is provided, for example, in the vehicle 1.
- the cooling fan operates based on a control signal S3 from the ECU 200.
- the first resolver 12 is provided in the first MG 20.
- the first resolver 12 detects the rotational speed Nm1 of the first MG 20.
- the first resolver 12 transmits a signal indicating the detected rotation speed Nm1 to the ECU 200.
- the second resolver 13 is provided in the second MG 30.
- the second resolver 13 detects the rotational speed Nm2 of the second MG 30.
- the second resolver 13 transmits a signal indicating the detected rotation speed Nm2 to the ECU 200.
- the wheel speed sensor 14 detects the rotational speed Nw of the drive wheel 80.
- the wheel speed sensor 14 transmits a signal indicating the detected rotation speed Nw to the ECU 200.
- ECU 200 calculates speed V of vehicle 1 based on the received rotational speed Nw.
- ECU 200 may calculate speed V of vehicle 1 based on rotation speed Nm2 of second MG 30 instead of rotation speed Nw.
- the ECU 200 generates a control signal S1 for controlling the engine 10 and outputs the generated control signal S1 to the engine 10.
- ECU 200 also generates a control signal S2 for controlling PCU 60 and outputs the generated control signal S2 to PCU 60.
- the ECU 200 generates a control signal S3 for controlling the cooling device 72, and outputs the generated control signal S3 to the cooling device 72.
- the ECU 200 controls the entire hybrid system, that is, the charging / discharging state of the battery 70 and the operating states of the engine 10, the first MG 20 and the second MG 30 so that the vehicle 1 can operate most efficiently by controlling the engine 10, the PCU 60, and the like. .
- the vehicle 1 when the engine 10 is inefficient at the time of starting or running at a low speed, the vehicle 1 travels only by the second MG 30. Further, during normal travel, for example, the power split device 40 divides the power of the engine 10 into two paths of power.
- the drive wheel 80 is directly driven by one power.
- the first MG 20 is driven with the other power to generate power.
- ECU 200 drives second MG 30 using the generated electric power. In this way, driving of the driving wheel 80 is performed by driving the second MG 30.
- the second MG 30 driven by the rotation of the drive wheel 80 functions as a generator to perform regenerative braking.
- the electric power recovered by regenerative braking is stored in the battery 70.
- ECU 200 increases the output of engine 10 to increase the amount of power generated by first MG 20 when the SOC of battery 70 decreases and charging is particularly necessary. Thereby, the SOC of the battery 70 is increased.
- the ECU 200 may perform control to increase the driving force from the engine 10 as necessary even during low-speed traveling. For example, the battery 70 needs to be charged as described above, an auxiliary machine such as an air conditioner is driven, or the temperature of the cooling water of the engine 10 is raised to a predetermined temperature.
- ECU 200 calculates the required power corresponding to the amount of depression of the accelerator pedal. Further, ECU 200 calculates charge / discharge request amount Pchg based on the current SOC of battery 70. ECU 200 controls the torque of first MG 20 and second MG 30 and the output of engine 10 according to the calculated required power and charge / discharge request amount Pchg.
- ECU 200 calculates charge / discharge request amount Pchg based on the current SOC of battery 70 and a predetermined map, for example.
- a predetermined map for example, when the current SOC is a threshold value SOC (0) (for example, 50%), the charge / discharge request amount Pchg is defined to be zero.
- the charge / discharge request amount Pchg is defined so that the discharge is required.
- the charge / discharge request amount Pchg is defined so that charging is required.
- a charge / discharge request amount Pchg within a predetermined range of the SOC is defined.
- the upper limit value and the lower limit value of the predetermined range are values defined by the type, characteristics, etc. of the battery and are values adapted experimentally or designally.
- the lower limit value of the predetermined range is, for example, 20%.
- the upper limit value of the predetermined range is, for example, 80%.
- the SOC of the battery 70 is controlled so as to change within a predetermined range around the threshold SOC (0). As a result, the SOC balance of the battery 70 is stabilized.
- the charging power upper limit value Win of the battery 70 is determined based on the battery temperature TB.
- charging may not be appropriately limited unless the battery temperature TB exceeds the allowable temperature.
- the abnormality of the charging system includes, for example, an abnormality in which the SOC of the battery 70 cannot be accurately estimated due to a failure of the voltage sensor 160.
- the failure of the voltage sensor 160 includes a failure mode in which the voltage sensor 160 outputs a value offset from the true value beyond the error range.
- the case where the charging control is not properly performed includes the case where the battery 70 is overcharged as a result of the SOC of the battery 70 being not accurately estimated.
- ECU 200 decreases charging power upper limit value Win of battery 70 and decreases charging power upper limit value Win.
- the battery 70 is characterized in that it is determined that the battery 70 is in an overcharged state when the battery 70 continues to be charged and the temperature of the battery 70 continues to rise.
- ECU 200 charges when battery temperature TB rise rate ⁇ TB is greater than threshold value ⁇ TB (0) compared to when rate of rise ⁇ TB is less than threshold value ⁇ TB (0).
- the power upper limit value Win is reduced.
- ECU 200 is a case where charging is continued until current integrated value IBs of battery 70 becomes larger than threshold value IBs (0) after lowering charging power upper limit value Win, and increasing speed ⁇ TB is increased. If it is not smaller than the threshold value ⁇ TB (1), it is determined that the battery 70 is in an overcharged state.
- the threshold value ⁇ TB (1) is a value equal to or smaller than the threshold value ⁇ TB (0).
- FIG. 2 shows a functional block diagram of ECU 200 mounted on vehicle 1 according to the present embodiment.
- ECU 200 includes an ascending speed calculation unit 202, an average value calculation unit 204, a limit value determination unit 206, an integrated value calculation unit 208, an overcharge determination unit 210, and a fail safe execution unit 212.
- the rising speed calculation unit 202 calculates the rising speed ⁇ TB of the battery temperature TB received from the battery temperature sensor 156.
- the increase rate ⁇ TB is, for example, an increase amount of the battery temperature TB during a predetermined period.
- the predetermined period is a period determined by the characteristics of the battery 70 and the magnitude of the charging current.
- the predetermined period is, for example, a period required for a predetermined temperature (for example, 1 to 2 ° C.) to rise when charging continues in an overcharged state.
- the predetermined period is, for example, a period of several tens of seconds to several minutes.
- the predetermined temperature is set based on the accuracy of the battery temperature sensor 156, for example.
- the rising speed ⁇ TB for each of the plurality of temperature sensors is calculated.
- the average value calculation unit 204 calculates the average value IBa of the current IB.
- the period for which the average value IBa is calculated may be the above-described predetermined period or may be a period longer than the above-described predetermined period.
- the period for which the average value IBa is calculated may be a period during which it can be determined that the increase in the battery temperature TB increase rate ⁇ TB is due to charging.
- Limit value determination unit 206 is in a first state in which battery 70 is in a state in which battery temperature TB has an increase rate ⁇ TB that is equal to or greater than threshold value ⁇ TB (0), and average value IBa is a charge-side value. It is determined whether or not.
- limit value determination unit 206 determines threshold value ⁇ TB (0) based on, for example, battery temperature TB and a predetermined map.
- the predetermined map is, for example, the map shown in FIG.
- the vertical axis in FIG. 3 indicates the threshold value ⁇ TB (0)
- the horizontal axis in FIG. 3 indicates the battery temperature TB of the battery 70.
- the limit value determining unit 206 determines that the threshold value ⁇ TB (0) is higher when the battery temperature TB of the battery 70 is higher than when the battery temperature TB is low. To decide. For example, when battery temperature TB is TB ′, limit value determining unit 206 determines threshold value ⁇ TB ′ (0) from the map shown in FIG.
- the map shown in FIG. 3 is an example, and is not limited to a linear relationship in which the threshold value ⁇ TB (0) increases as the battery temperature TB increases, for example, a non-linear relationship. May be. Further, the threshold value ⁇ TB (0) may be a predetermined value.
- the limit value determining unit 206 determines whether any one of the plurality of rising speeds calculated based on the detection results of the plurality of temperature sensors (that is, It may be determined whether or not the largest rising speed is equal to or greater than a threshold value ⁇ TB (0).
- Limit value determination unit 206 determines limit value Win (1) lower than normal value Win (0) as charge power upper limit value Win when battery 70 is in the first state.
- the limit value Win (1) is lower than the normal value Win (0), is the minimum charge power required for the vehicle 1, and is a value greater than zero.
- the limit value Win (1) is determined based on the state of the vehicle 1.
- the limit value Win (1) is, for example, a value that can accept charging power based on at least the charge / discharge request amount Pchg described above.
- the limit value Win (1) is as low as possible, and the change level of the behavior of the vehicle 1 does not exceed the allowable level of the driver (not causing the driver to feel uncomfortable). It is desirable that the value is set. For example, when the accelerator is off, control for increasing the engine rotational speed Ne and regeneration control using the second MG 30 are executed in order to obtain a deceleration according to the traveling state of the vehicle 1. Further, it is desirable that the regenerative control is executed so that the level of vibration due to the increase in the engine speed Ne does not exceed the allowable level of the driver at least when the accelerator is off. Therefore, the limit value Win (1) is desirably a value that can accept the regenerative power generated by the regenerative control executed as described above when the accelerator is off, for example.
- the normal value Win (0) is a value set based on the SOC of the battery 70, the battery temperature TB of the battery 70, and the traveling state of the vehicle 1 as described above.
- the normal value Win (0) is a value determined based on parameters other than the battery temperature TB increase rate ⁇ TB.
- the limit value determining unit 206 may turn on the overcharge temporary determination flag.
- the limit value determining unit 206 determines that the average value IBa is smaller than zero. May be determined to be a charge-side value.
- the limit value determining unit 206 only needs to be able to determine whether or not the battery 70 is charged in the period immediately before, and is not limited to determining based on the average current value IBa.
- Limit value determining unit 206 is in a second state in which battery 70 is in a state where battery temperature TB rise rate ⁇ TB is equal to or less than threshold value ⁇ TB (1), or average value IBa is a value on the discharge side. It is determined whether or not.
- Threshold value ⁇ TB (1) is a value equal to or less than threshold value ⁇ TB (0).
- threshold value ⁇ TB (1) is a value smaller than threshold value ⁇ TB (0) by a predetermined value in order to prevent hunting due to fluctuation of rising speed ⁇ TB in control of charging power upper limit value Win. Is desirable.
- the limit value determining unit 206 may determine that the average value IBa is a value on the discharge side when the average value IBa is a value larger than zero.
- the limit value determination unit 206 is not limited to the determination based on the current average value IBa, as long as it can determine whether or not the battery 70 is in a discharged state in the period immediately before.
- the limit value determination unit 206 has any of the plurality of rising speeds calculated based on the detection results of the plurality of temperature sensors (that is, the largest). It may be determined whether or not the rising speed is equal to or less than a threshold value ⁇ TB (1).
- Limit value determining unit 206 determines normal value Win (0) as charging power upper limit value Win when battery 70 is in the second state.
- the limit value determination unit 206 may turn off the overcharge temporary determination flag when the state of the battery 70 is the second state, for example.
- Limit value determination unit 206 determines charging power upper limit Win so that the amount of change from the previous value does not exceed the upper limit.
- the upper limit value of the amount of change is a value set so that the change level of the behavior of the vehicle 1 due to the change in the charging power upper limit value Win does not exceed the allowable level of the driver.
- the limit value determining unit 206 limits the magnitude of the change amount to the upper limit value. That is, limit value determining section 206 determines a value obtained by subtracting the upper limit value of the amount of change from previous value Win (0) as the current value of charge power upper limit value Win. The same applies when the previous value is the limit value Win (1) and the value returns to the normal value Win (0). Therefore, detailed description thereof will not be repeated.
- the integrated value calculation unit 208 switches from the off state to the on state.
- the integrated value (hereinafter referred to as the current integrated value) IBs of the charging current from the time when the switching is made is calculated.
- the integrated value calculation unit 208 resets the current integrated value IBs to an initial value (for example, zero) at the time of switching from the off state to the on state, and calculates the integrated value of the current IB from the initial value. Also good.
- the integrated value calculation unit 208 may set the current integrated value IBs at the time of switching from the off state to the on state as an initial value when current integration is always performed.
- the integrated value calculation unit 208 ends the integration of the charging current when it is determined that the state of the battery 70 is the second state (that is, when the overcharge temporary determination flag is switched from the on state to the off state). To do.
- the overcharge determination unit 210 determines that the battery 70 is in an overcharge state when the current integrated value IBs is equal to or greater than the threshold value IBs (0). For example, overcharge determination unit 210 determines that voltage sensor 160 is in an abnormal state when the SOC based on voltage sensor 160 is lower than threshold value ⁇ SOC (0) by a value equal to or greater than the SOC corresponding to the fully charged state. Good.
- the threshold value ⁇ SOC (0) is a value larger than the SOC estimation error based on the voltage sensor error. ⁇ SOC (0) may be a predetermined value or a value determined based on battery temperature TB.
- Threshold value IBs (0) is a value set so that deterioration is not promoted when the overcharged battery 70 continues to be charged.
- the threshold value IBs (0) may be a predetermined value, or may be a value set based on the battery temperature TB or the like.
- overcharge determination unit 210 may determine threshold value IBs (0) so that threshold value IBs (0) is smaller when battery temperature TB is high than when low.
- threshold value IBs (0) is a value that prevents erroneous determination.
- the fail safe execution unit 212 may disconnect the battery 70 from the system of the vehicle 1 by, for example, turning off a system main relay (not shown) between the PCU 60 and the battery 70. Alternatively, fail-safe execution unit 212 may suppress charging of battery 70 by suppressing start of engine 10 and execution of regenerative control.
- the ascending speed calculation unit 202 the average value calculation unit 204, the limit value determination unit 206, the integrated value calculation unit 208, the overcharge determination unit 210, and the fail safe execution unit 212 are Although the description will be made assuming that the CPU of the ECU 200 functions as software that is realized by executing a program stored in the memory, it may be realized by hardware. Such a program is recorded on a storage medium and mounted on the vehicle.
- ECU 200 executes a program based on the flowchart shown in FIG. 4 at predetermined time intervals.
- step (hereinafter, step is described as S) 100 ECU 200 acquires battery temperature TB from battery temperature sensor 156.
- ECU 200 calculates an increase rate ⁇ TB of battery temperature TB.
- ECU 200 acquires current IB from current sensor 158.
- ECU 200 calculates an average value IBa of current IB.
- ECU 200 determines whether or not battery 70 is in the first state in which ascent rate ⁇ TB is equal to or greater than threshold value ⁇ TB (0) and average value IBa is a charge-side value. judge. If the state of battery 70 is the first state (YES in S108), the process proceeds to S112. If not (NO in S108), the process proceeds to S110.
- ECU 200 determines whether or not battery 70 is in the second state in which ascent rate ⁇ TB is equal to or less than threshold value ⁇ TB (1) or average value IBa is a value on the discharge side. judge. If the state of battery 70 is the second state (YES in S110), the process proceeds to S116. If not (NO in S110), the process proceeds to S120.
- ECU 200 turns on the overcharge temporary determination flag.
- ECU 200 executes limit control of charge power upper limit value Win. That is, ECU 200 determines limit value Win (1) lower than normal value Win (0) as charge power upper limit value Win.
- ECU 200 turns the overcharge temporary determination flag off.
- ECU 200 cancels the restriction control of charging power upper limit value Win. That is, ECU 200 determines normal value Win (0) as charging power upper limit value Win.
- ECU 200 determines whether or not the overcharge temporary determination flag is in an on state. If the overcharge temporary determination flag is on (YES in S120), the process proceeds to S122. If not (NO in S120), this process ends.
- ECU 200 determines whether or not current integrated value IBs from when the overcharge temporary determination flag is switched from the off state to the on state is equal to or greater than threshold value IBs (0). If current integrated value IBs is equal to or greater than threshold value IBs (0) (YES in S122), the process proceeds to S124. If not (NO in S122), this process ends.
- ECU 200 determines that battery 70 is in an overcharged state. In S126, ECU 200 executes fail-safe processing.
- the battery temperature TB is acquired from the battery temperature sensor 156 (S100), and the rate of increase ⁇ TB of the battery temperature TB is calculated (S102). Further, the current IB is acquired from the current sensor 158 (S104), and the average value IBa of the current IB is calculated (S106).
- the battery temperature TB rises as charging continues, and at time T (0), the rate of increase ⁇ TB is equal to or greater than the threshold value ⁇ TB (0), and the average value IBa of the current IB is a value on the charging side. (YES in S108), the overcharge temporary determination flag is turned on (S112), and limit value Win (1) is determined as charge power upper limit Win (S114).
- the battery temperature TB is acquired from the battery temperature sensor 156 (S100), and the rate of increase ⁇ TB of the battery temperature TB is calculated (S102). Further, the current IB is acquired from the current sensor 158 (S104), and the average value IBa of the current IB is calculated (S106).
- the charging power upper limit is set.
- the value Win is lowered.
- the charging power upper limit value Win of the battery 70 can be appropriately limited.
- the temperature of the battery 70 continues to rise, it can be accurately determined that the battery 70 is in an overcharged state. Therefore, since it can identify that the battery 70 is an overcharge state, charge can be stopped quickly. Therefore, it is possible to provide a charge control device and a charge control method that appropriately limit charging and promptly stop charging when an abnormality occurs in the charging system.
- the voltage sensor 160 when it is determined that the battery 70 is in an overcharged state, if the SOC based on the voltage sensor 160 is lower than the SOC corresponding to the fully charged state by a threshold value ⁇ SOC (0) or more, the voltage sensor 160 is abnormal. Can be determined with high accuracy.
- the ECU 200 has been described as always executing the program based on the flowchart shown in FIG. 4 when the system of the vehicle 1 is being activated, but is not particularly limited thereto.
- the ECU 200 is limited to at least one of a period during charging of the battery 70 using an external power source, charging of the battery 70 by regenerative control, and charging of the battery 70 using the engine.
- a program based on the flowchart shown in FIG. 4 is not particularly limited thereto.
- the ECU 200 is limited to at least one of a period during charging of the battery 70 using an external power source, charging of the battery 70 by regenerative control, and charging of the battery 70 using the engine.
- the charging power upper limit Win is limited when the state of the battery 70 is the first state, but even if the discharging power upper limit Wout is limited in addition to the charging power upper limit Win. Good. In this way, since the cause of the temperature rise of the battery 70 is limited, it can be determined with high accuracy whether or not the battery 70 is in an overcharged state. Further, when the charging power upper limit value Wout is limited, the amount of change may be limited so as not to exceed the upper limit value, or may be limited in stages. In addition, when restricting charging power upper limit value Wout, it is desirable that the vehicle 1 is restricted within a range in which the vehicle 1 can travel according to a driver's request.
- the vehicle to which the present invention is applied is not limited to a hybrid vehicle having a configuration as shown in FIG. It is not a thing.
- the vehicle to which the present invention is applied may be, for example, a vehicle in which a charging device capable of charging the battery 70 using an external power source is mounted in the configuration shown in FIG.
- the vehicle to which the present invention is applied may be, for example, a series hybrid vehicle or a parallel hybrid vehicle.
- the vehicle to which the present invention is applied may be an electric vehicle as shown in FIG.
- the vehicle 1 shown in FIG. 7 is charged using the external power supply 302 and the point that the components between the power split device 40 and the engine 10 are omitted.
- the difference is that a charging device 78 capable of charging is included.
- a charging device 78 capable of charging is included.
- the charging device 78 shown in FIG. 7 charges the battery 70 using the electric power supplied from the external power source 302 when the charging plug 300 is attached to the vehicle 1.
- Charging plug 300 is connected to one end of charging cable 304.
- the other end of charging cable 304 is connected to external power supply 302.
- the positive terminal of the charging device 78 is connected to a power supply line that connects the positive terminal of the PCU 60 and the positive terminal of the battery 70.
- the negative terminal of the charging device 78 is connected to an earth line that connects the negative terminal of the PCU 60 and the negative terminal of the battery 70.
- Charging device 78 operates based on control signal S4 from ECU 200.
- the limit value Win (1) when the charging power upper limit value Win is limited is a reduction required at least when the accelerator is off. It is desirable that the speed be secured. In an electric vehicle, deceleration when the accelerator is off is performed by regenerative braking of a motor generator. Therefore, it is desirable that the limit value Win (1) is a value that can accept regenerative power generated by regenerative braking.
- the application target of the present invention is not particularly limited to a vehicle, and can be applied to a mobile body (for example, a ship) on which a power storage device is mounted.
- ECU 200 does not change the operation amount of cooling device 72 while lowering charging power upper limit value Win when cooling device 72 is operating when the temperature of power storage device rises due to charging of battery 70. You may do it. Alternatively, ECU 200 may not determine whether or not battery 70 is in an overcharged state when operation of cooling device 72 starts. If it does in this way, the misjudgment by the battery temperature changing by operation
Abstract
Description
図5に示すように、たとえば、電池温度TBがTB(0)であって、充電電力上限値Winが通常値Win(0)である場合を想定する。たとえば、バッテリ70のSOCは、満充電状態に近い状態であるものの、電圧センサ160の故障により、電圧に基づくSOCの推定値が所定範囲内であるものとする。
図6に示すように、たとえば、電池温度TBがTB(0)であって、充電電力上限値Winが通常値Win(0)である場合を想定する。また、バッテリ70のSOCは、所定範囲の中心付近であるとする。また、車両1は、下り坂を継続して走行しており、回生制御の実行によりバッテリ70が充電されている場合を想定する。
Claims (12)
- 電気機器に電力を供給するための蓄電装置の充電を制御するための充電制御装置であって、
前記蓄電装置の温度を検出するための検出装置と、
前記蓄電装置の充電により前記蓄電装置の温度が上昇した場合には、前記蓄電装置の充電電力の上限値を低下させ、前記上限値を低下させた状態で充電が継続する場合であって、かつ、前記蓄電装置の温度上昇が継続する場合には、前記蓄電装置が過充電状態であると判定するための制御装置とを含む、充電制御装置。 - 前記制御装置は、前記蓄電装置の温度の上昇速度が第1しきい値よりも大きい場合には、前記上昇速度が前記第1しきい値よりも小さい場合に比べて、前記充電電力の前記上限値を低下させる、請求項1に記載の充電制御装置。
- 前記制御装置は、前記蓄電装置の温度が高いときには、前記蓄電装置の温度が低いときに比べて前記第1しきい値が高くなるように前記第1しきい値を決定する、請求項2に記載の充電制御装置。
- 前記検出装置は、前記蓄電装置の複数箇所の温度を検出し、
前記制御装置は、前記複数箇所のうちのいずれか一つの温度の前記上昇速度が前記第1しきい値よりも大きい場合には、前記充電電力の前記上限値を低下させる、請求項2に記載の充電制御装置。 - 前記制御装置は、前記充電電力の前記上限値を低下させてからの前記蓄電装置への電流積算値が予め定められた値よりも大きくなるまで充電が継続した場合であって、前記蓄電装置の温度の上昇速度が第2しきい値よりも小さくならない場合には、前記蓄電装置が前記過充電状態であると判定し、
前記第2しきい値は、前記第1しきい値以下の値である、請求項1に記載の充電制御装置。 - 前記制御装置は、前記上昇速度が前記第2しきい値よりも小さい場合および前記蓄電装置が放電されている場合のうちの少なくともいずれか一方の場合には、前記充電電力の前記上限値の低下を解除する、請求項5に記載の充電制御装置。
- 前記制御装置は、前記蓄電装置が前記過充電状態であると判定した場合に前記蓄電装置の充電を停止させる、請求項1に記載の充電制御装置。
- 前記蓄電装置には、前記蓄電装置を冷却するための冷却装置が設けられ、
前記制御装置は、前記蓄電装置の充電により前記蓄電装置の温度が上昇した場合に前記冷却装置が作動中であるときには、前記上限値を低下させている間に前記冷却装置の作動量を変更しない、請求項1に記載の充電制御装置。 - 前記蓄電装置には、前記蓄電装置を冷却するための冷却装置が設けられ、
前記制御装置は、前記冷却装置の作動が開始する場合には前記蓄電装置が前記過充電状態であるか否かの判定を行なわない、請求項1に記載の充電制御装置。 - 前記制御装置は、前記蓄電装置の充電により前記蓄電装置の温度が上昇した場合には、前記充電電力の前記上限値を低下させるとともに、前記蓄電装置の放電電力の上限値を低下させる、請求項1に記載の充電制御装置。
- 前記充電制御装置は、駆動用電動機を有する車両に搭載され、
前記蓄電装置は、前記駆動用電動機との間で電力を授受する、請求項1に記載の充電制御装置。 - 電気機器に電力を供給するための蓄電装置の充電を制御する充電制御方法であって、
前記蓄電装置の充電により前記蓄電装置の温度が上昇した場合には、前記蓄電装置の充電電力の上限値を低下させるステップと、
前記上限値を低下させた状態で充電が継続する場合であって、かつ、前記蓄電装置の温度上昇が継続する場合には、前記蓄電装置が過充電状態であると判定するステップとを含む、充電制御方法。
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US14/349,406 US9608468B2 (en) | 2011-10-04 | 2011-10-04 | Charge control apparatus and charge control method |
EP11873577.8A EP2765677B1 (en) | 2011-10-04 | 2011-10-04 | Charge control apparatus and charge control method |
PCT/JP2011/072838 WO2013051104A1 (ja) | 2011-10-04 | 2011-10-04 | 充電制御装置および充電制御方法 |
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Also Published As
Publication number | Publication date |
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CN103858311A (zh) | 2014-06-11 |
EP2765677A1 (en) | 2014-08-13 |
EP2765677A4 (en) | 2015-12-16 |
JPWO2013051104A1 (ja) | 2015-03-30 |
JP6011541B2 (ja) | 2016-10-19 |
EP2765677B1 (en) | 2018-09-26 |
CN103858311B (zh) | 2018-01-02 |
US9608468B2 (en) | 2017-03-28 |
US20140247018A1 (en) | 2014-09-04 |
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