WO2014148558A1 - 電源制御装置 - Google Patents
電源制御装置 Download PDFInfo
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- WO2014148558A1 WO2014148558A1 PCT/JP2014/057559 JP2014057559W WO2014148558A1 WO 2014148558 A1 WO2014148558 A1 WO 2014148558A1 JP 2014057559 W JP2014057559 W JP 2014057559W WO 2014148558 A1 WO2014148558 A1 WO 2014148558A1
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- power
- power supply
- capacitor
- battery
- sharing ratio
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by ac motors
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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
- 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
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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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
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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
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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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/525—Temperature of converter or components thereof
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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
- 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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- 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
- B60L2240/547—Voltage
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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
- 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
- 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
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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
- Y02T10/72—Electric energy management in electromobility
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/907—Electricity storage, e.g. battery, capacitor
Definitions
- a vehicle for example, an electric vehicle or a hybrid vehicle
- a power supply system including two types of power supplies has been proposed (see Patent Documents 1 and 2).
- the two types of power sources for example, a power source capable of discharging (that is, outputting) a constant power over a long time and a power source capable of rapid charging / discharging (that is, input / output) are used.
- Patent Document 1 discloses a control method in which the battery outputs all of the requested discharge output when the requested discharge output required for the power supply device is equal to or less than the maximum output of the battery during powering. . Further, in Patent Document 1, when the required discharge output required for the power supply device exceeds the maximum output of the battery, the capacitor outputs the portion of the required discharge output that exceeds the maximum output of the battery (or discharge). A control method is disclosed in which a capacitor outputs all the required outputs. By such a control method, since rapid discharge from the battery is prevented, deterioration of the battery is suppressed.
- Patent Document 2 discloses a control method for increasing the share of charging to a large-capacity capacitor by restricting charging to a battery during braking (regeneration). Such a control method prevents rapid charging of the battery, so that deterioration of the battery is suppressed.
- JP-A-7-245808 Japanese Patent Laid-Open No. 5-30608
- the control methods disclosed in Patent Documents 1 and 2 charge the capacitor only when rapid charging or discharging from the battery can occur from the standpoint of preventing battery deterioration. In addition, the capacitor is discharged. For this reason, the control methods disclosed in Patent Documents 1 and 2 have a technical problem that the battery and the capacitor cannot be properly used according to the characteristics required of the vehicle. For example, in the control methods disclosed in Patent Documents 1 and 2, there is a risk that the traveling performance, fuel consumption, etc. of the vehicle may be sacrificed because of persistence in preventing battery deterioration. Alternatively, in the control methods disclosed in Patent Documents 1 and 2, there is a risk that the characteristics required of the vehicle are sacrificed (that is, the originally intended characteristics cannot be obtained) as well as the running performance and fuel consumption of the vehicle. is there.
- Examples of problems to be solved by the present invention include the above.
- the present invention even when different characteristics are required for a vehicle having two types of power supplies, it is possible to drive the vehicle using two types of power supplies while satisfying the different characteristics flexibly. It is an object to provide a power supply control device.
- a first power supply control apparatus for solving the above problems includes a first power supply for inputting / outputting first power and an input / output for second power and having a capacity smaller than that of the first power supply, but having an output.
- the first power source performs input / output (that is, charge / discharge) of the first power.
- the first power source is a power source having a larger capacity than the second power source (so-called high capacity type power source). Therefore, the first power source can output a constant power for a longer time than the second power source.
- the second power source performs input / output (that is, charge / discharge) of the second power.
- the second power source is a power source having a larger output than the first power source (a so-called high power type power source). Therefore, the second power supply can input / output power more rapidly (steeply) than the first power supply.
- a battery may be used as the first power source, and a capacitor (in other words, a capacitor) may be used as the second power source.
- a high-capacity battery that is, a battery having a larger capacity than the high-power battery
- a high-power battery that is, a higher output than the high-capacity battery
- Battery may be used.
- the first power supply control device includes a selection unit and a control unit.
- the selecting means selects a desired driving mode from a plurality of driving modes.
- the plurality of travel modes are distinguished from each other according to a share ratio of the first power with respect to the required power (that is, a ratio that the first power input / output by the first power source occupies or bears in the required power).
- the first power sharing ratio is in the first range, or the first power sharing ratio is in the second range (however, at least part of the second range is , Different from the first range) may include a travel mode and the like.
- the driving mode in which the sharing ratio of the first power is the first value, or the sharing ratio of the first power is the second value may include a driving mode and the like (different from the value of 1).
- the required power is the power required for the power supply system. That is, when the vehicle is powering, the required power corresponds to the power that the power supply system should output in order for the vehicle to power. Alternatively, when the vehicle is regenerating, the required power corresponds to the power to be input to the power supply system (that is, the power to be input to the power supply system among the power generated by the regeneration).
- the selection means particularly selects a desired driving mode according to the characteristics required for the vehicle.
- the selection unit may select a desired travel mode associated with a sharing ratio of the first power suitable (or optimal) for characteristics required for the vehicle.
- the selection unit may select a desired travel mode associated with a share of the first power that can realize the characteristics required for the vehicle.
- the first power suitable for the characteristic in which the driving performance is emphasized when the characteristic required for the vehicle is a characteristic in which the driving performance is more important than the fuel efficiency, the first power suitable for the characteristic in which the driving performance is emphasized.
- a desired travel mode associated with the sharing ratio may be selected.
- the selection unit associates the sharing ratio of the first electric power suitable for the characteristic that emphasizes the fuel consumption performance.
- the desired running mode may be selected.
- the selection unit may select a desired travel mode associated with the share of the first power suitable for the other characteristic. Good.
- the selection means can appropriately select a desired traveling mode whenever the characteristics required of the vehicle change in accordance with the traveling of the vehicle. That is, the selection means can appropriately change the share of the first power according to the characteristics required of the vehicle by appropriately selecting the desired travel mode.
- the share of the second power is also substantially determined.
- the share ratio [%] of the second power is 100—the share ratio [%] of the first power.
- the second power sharing ratio [%] is 100-the first power sharing ratio-other The share of power input / output by the power supply is [%].
- the control means controls the first power supply so as to input / output the first power according to the sharing ratio corresponding to the desired travel mode selected by the selection means.
- the control unit controls the second power source so as to input / output the second power according to the sharing ratio corresponding to the desired travel mode selected by the selection unit.
- the first power supply inputs and outputs the first power that directly satisfies the sharing ratio corresponding to the desired travel mode.
- the second power source inputs and outputs second power that indirectly satisfies the sharing ratio corresponding to the desired travel mode. Therefore, the first power source and the second power source are selectively used according to the sharing ratio determined based on the selection of the travel mode by the selection means.
- the control means may adjust (or determine) the share of the first electric power based on the desired travel mode selected by the selection means. For example, when the desired travel mode is associated with a share of a certain range, the control unit may adjust the share of the first power within a range corresponding to the desired travel mode. Specifically, for example, when the share of the first electric power associated with the one driving mode selected by the selection unit is within the first range, the control unit is within the first range. You may adjust the share of 1 electric power.
- the sharing ratio of the first power can be changed. That is, the share ratio of the first power may be changed as appropriate by adjustment by the control means in addition to or instead of selection of the travel mode by the selection means.
- control methods disclosed in Patent Documents 1 and 2 described above do not have the technical idea of changing the share of the first power according to the characteristics required of the vehicle. That is, in the control methods disclosed in Patent Documents 1 and 2, in principle, the battery sharing ratio is fixed to 100%. In addition, the control methods disclosed in Patent Documents 1 and 2 charge the capacitor and discharge the capacitor only when rapid charging or discharging from the battery can occur. Only. Therefore, since the control methods disclosed in Patent Documents 1 and 2 can only suppress the deterioration of the battery, the battery and the capacitor can be changed flexibly (that is, the vehicle) so as to realize a plurality of different characteristics.
- the plurality of travel modes include: (i) a first travel mode in which the share of the first power is smaller than a first threshold; and (ii) the first power And a second traveling mode in which the sharing ratio is greater than the first threshold value.
- the selection means has the first traveling mode in which the sharing ratio of the first power is relatively small and the sharing ratio of the first power is relatively large according to the characteristics required of the vehicle.
- One of the driving modes can be selected.
- the first threshold value appropriately determines the first traveling mode and the second traveling mode that can satisfy different characteristics, taking into account the correlation between the characteristics required of the vehicle and the share of the first power. It is preferable to set an arbitrary value that can be distinguished.
- the plurality of travel modes include: (i) a first travel mode in which a share ratio of the first power is smaller than a share ratio of the second power with respect to the required power; (Ii) a second traveling mode in which a share ratio of the first power is larger than a share ratio of the second power.
- the selection means has the first traveling mode in which the sharing ratio of the first power is relatively small and the sharing ratio of the first power is relatively large according to the characteristics required of the vehicle.
- One of the driving modes can be selected.
- the selection is performed when the characteristics required for the vehicle are characteristics that place greater emphasis on fuel consumption performance than travel performance.
- the means selects the first travel mode, and the selection means selects the second travel mode when the characteristic required for the vehicle is a characteristic in which travel performance is more important than fuel efficiency.
- the selection means when the vehicle places more importance on the fuel efficiency performance (for example, improvement of fuel efficiency) than the driving performance (for example, improvement of driving response), the selection means has a relative share of the first power.
- the first traveling mode that becomes smaller is selected.
- the share of the first power is smaller than when the second travel mode is selected, while the share of the second power is growing.
- the input / output efficiency of the second power in the second power source is the input power of the first power in the first power source. Generally better than output efficiency.
- the fuel consumption performance of a vehicle improves, so that the share ratio of 2nd electric power becomes large (in other words, the share ratio of 1st electric power becomes small). That is, when the first travel mode is selected, the fuel efficiency of the vehicle is improved compared to when the second travel mode is selected.
- the selection means selects the second driving mode in which the share of the first electric power is relatively large.
- the share of the first power is larger than when the first travel mode is selected, while the share of the second power is Get smaller.
- the second power to be output from the second power supply is relatively small, it is difficult for the second power supply to be exhausted.
- the depletion of the second power source is suppressed.
- the capacity of the second power source is relatively easily reduced as compared with the case where the depletion of the second power source is not suppressed, the cost and size of the second power source can be reduced.
- the second power source having a relatively large output is temporarily connected to the first power source. It is preferable that the required power is satisfied by outputting two powers (that is, the first power output from the first power source is supported). Then, when the exhaustion of the second power source is suppressed, the second power source easily outputs the second power in order to satisfy such running performance. In other words, it is difficult for the second power source to output the second power at a timing at which the second power source should temporarily output the second power in accordance with fluctuations in the required power. As a result, it is possible to satisfy characteristics that place importance on running performance for a longer time.
- the selection according to this aspect is preferably performed when the vehicle is powered.
- the selection means may perform selection according to this aspect.
- the selection means when the vehicle is regenerating, is the selection means whether the characteristic required for the vehicle is a characteristic that emphasizes the fuel consumption performance rather than the driving performance or the characteristic that emphasizes the driving performance rather than the fuel consumption performance? Regardless, the first traveling mode in which the share of the second power is relatively large may be selected.
- input of the second power to the second power supply that is, charging of the second power supply by the power generated by the regeneration
- the first power source when the difference between the current characteristic value of the first power source and the rated limit value of the first power source is smaller than the second threshold value, the first power source performs a stable operation or an intended operation. There is a risk that it will not be possible. That is, in such a case, there is a possibility that the first power source cannot perform input / output of the first power sufficient to satisfy the traveling performance.
- the second power source when the difference between the current characteristic value of the second power source and the rated limit value of the second power source is smaller than the second threshold value, the second power source cannot perform a stable operation or an intended operation. There is a fear. That is, in such a case, there is a possibility that the second power source cannot perform input / output of the second power sufficient to satisfy the traveling performance.
- the characteristics required of the vehicle place importance on the driving performance rather than the fuel efficiency performance. Even if it is a characteristic to do, a selection means does not need to select the 2nd driving mode with which the sharing ratio for attaching importance to driving performance was matched.
- the “current characteristic value of the power supply” means an arbitrary parameter that can directly or indirectly indicate the current state of the power supply. Examples of such current characteristic values of the power source include the current temperature of the power source and the current SOC value of the power source.
- the “rated rating limit value of the power supply” means a limit value that can be taken by the current characteristic value of the power supply and is determined by the rating or the like. Examples of the rated limit value of the power source include a limit value of a temperature at which the power source can operate, a limit value of an SOC value that can be taken by the power source, and the like.
- the second threshold is a state in which the first power supply can perform input / output of the first power sufficient to satisfy the traveling performance and the first power sufficient to satisfy the traveling performance in consideration of the specification of the first power supply. Is preferably set to an arbitrary value that can be appropriately distinguished from a state in which the first power supply cannot perform input / output. Furthermore, the second threshold value is a second value that satisfies the driving performance and a state in which the second power source can perform input / output of the second power sufficient to satisfy the traveling performance in consideration of the specifications of the second power source. It is preferably set to an arbitrary value that can be appropriately distinguished from the state in which the second power source cannot input and output power.
- the control means includes a current characteristic value of at least one of the first power supply and the second power supply and at least one of the first power supply and the second power supply.
- the share ratio of the first power is adjusted according to the difference between the rated limit value of the first power.
- the difference between the current characteristic value of the second power source and the rated limit value of the second power source substantially determines whether the second power source can perform a stable operation or an intended operation. Is shown. For this reason, the first power supply control device adjusts the sharing ratio of the first power according to the difference between the current characteristic value of the second power supply and the rated limit value of the second power supply, so that the first power supply and The second power source can be used more and more flexibly.
- the adjustment of the share ratio of the first power is the difference between the current characteristic value of the first power source and the rated limit value of the first power source, and the current characteristic value of the second power source and the rated limit of the second power source.
- the second threshold that is, when it is estimated that both the first power supply and the second power supply can perform stable operation or intended operation. It doesn't have to be done.
- the first power supply control device reduces the share of the first power (that is, reduces the burden on the first power supply), thereby stabilizing the state of the first power supply or It is possible to return to a state where the intended operation can be performed. In this manner, the first power supply control device can properly use the first power supply and the second power supply more flexibly.
- the sharing ratio of one electric power is determined according to the difference between the current characteristic value of at least one of the first power supply and the second power supply and the rated limit value of at least one of the first power supply and the second power supply.
- the control means sets the share of the first power as the difference between the current characteristic value of the second power supply and the rated limit value of the second power supply becomes smaller. increase.
- a second power supply control device that solves the above problems includes a first power source that inputs and outputs a first power, and a first power source that inputs and outputs a second power and has a smaller capacity and a larger output than the first power source.
- a power supply control apparatus for controlling a vehicle that travels using a power supply system that includes both of two power supplies, wherein the first power with respect to a required power required for the power supply system according to characteristics required for the vehicle And adjusting the first power supply and the second power supply so as to input / output the first power and the second power according to the sharing ratio adjusted by the adjusting means. Control means.
- the second power supply control device can control a vehicle that travels using a power supply system that includes both the first power supply and the second power supply, similarly to the first power supply control device.
- the description of the same configuration as that of the first power supply control device is omitted.
- the second power supply control device includes an adjustment unit and a control unit.
- the adjustment unit has a sharing ratio suitable for the characteristic that emphasizes the driving performance.
- the sharing ratio of the first power may be adjusted.
- the adjusting means is configured to have a sharing ratio suitable for the characteristic of emphasizing the fuel consumption performance. You may adjust the share of electric power.
- the adjusting means may adjust the sharing ratio of the first power so that the sharing ratio is suitable for the other characteristics.
- the adjusting means may adjust the share of the first power according to the relative relationship between the importance level of the fuel efficiency and the running performance.
- the adjusting unit may adjust the share of the first power so as to prevent the second power source having a relatively small capacity from being depleted.
- the adjustment unit may adjust the share ratio of the first power so as to positively use the second power supply having a relatively large output in accordance with a rapid increase or decrease in the required power.
- the adjusting means can appropriately adjust the share of the first electric power whenever the characteristics required of the vehicle change according to the traveling of the vehicle. That is, the adjustment means can substantially change the sharing ratio of the first power according to the characteristics required for the vehicle.
- the control means controls the first power supply so as to input / output the first power according to the sharing ratio adjusted by the adjusting means.
- the control unit controls the second power supply so as to input / output the second power according to the sharing ratio adjusted by the adjustment unit.
- the first power supply inputs and outputs the first power that directly satisfies the sharing ratio adjusted by the adjusting means.
- the second power source inputs and outputs second power that indirectly satisfies the sharing ratio adjusted by the adjusting means. Therefore, the first power source and the second power source are selectively used according to the sharing ratio adjusted by the adjusting means.
- the second power supply control device can appropriately change the sharing ratio of the first power, similarly to the first power supply control device.
- the sharing ratio of the first power need not always be fixed to the same sharing ratio. Therefore, the second power supply control device can enjoy the same effects as the various effects that the first power supply control device enjoys.
- the second power supply control device can appropriately use the first power supply and the second power supply appropriately so as to realize compatibility between a plurality of different characteristics.
- the adjusting means may: (i) share the first electric power when the characteristic required for the vehicle is a characteristic that emphasizes fuel efficiency rather than driving performance. Adjusting the share ratio of the first electric power so that the ratio is smaller than the first threshold, and (ii) when the characteristic required for the vehicle is a characteristic that emphasizes driving performance rather than fuel efficiency performance, The sharing ratio of the first power is adjusted so that the sharing ratio of the first power is larger than the threshold.
- the adjusting means may: (i) if the characteristic required for the vehicle is a characteristic in which fuel efficiency is more important than driving performance, the first power The share ratio of the first electric power is adjusted so that the share ratio of the second electric power is smaller than the share ratio of the second electric power with respect to the required electric power, and (ii) the characteristics required of the vehicle are higher than the fuel efficiency performance.
- the sharing ratio of the first power is adjusted so that the sharing ratio of the first power is larger than the sharing ratio of the second power.
- the adjusting means adjusts the sharing ratio of the first power so that the sharing ratio of the first power becomes relatively small. . Therefore, as with the first power supply control device, the fuel efficiency of the vehicle is improved.
- the adjusting means adjusts the sharing ratio of the first power so that the sharing ratio of the first power becomes relatively large. Accordingly, the cost, size, etc. of the second power supply can be reduced as in the first power supply control device. Similarly, it is possible to satisfy characteristics that place importance on running performance for a longer time.
- a second power source that adjusts the sharing ratio of the first electric power so that the sharing ratio of the first electric power is larger than the first threshold when the characteristic required for the vehicle is a characteristic that emphasizes the driving performance rather than the fuel consumption performance.
- the current characteristic value of at least one of the first power supply and the second power supply, the first power supply, and the second power supply are selected.
- the first power sharing ratio is adjusted so that the first power sharing ratio is greater than the second power sharing ratio when the characteristics required of the vehicle are characteristics that emphasize driving performance rather than fuel efficiency performance.
- the current characteristic value of at least one of the first power supply and the second power supply and the first power supply When the difference between the rated limit value of at least one of the power source and the second power source is smaller than the second threshold value, the characteristic required for the vehicle is a characteristic that places more emphasis on driving performance than fuel efficiency performance.
- the adjusting means does not adjust the sharing ratio of the first power so that the sharing ratio of the first power is larger than the sharing ratio of the second power.
- the adjusting means adjusts the sharing ratio of the first electric power so as to be a sharing ratio for emphasizing the driving performance. You don't have to.
- the second power supply control device uses the first power according to the difference between the current characteristic value of the first power supply and the rated limit value of the first power supply.
- the first power source and the second power source can be used more appropriately and flexibly.
- the second power supply control device like the first power supply control device, shares the first power according to the difference between the current characteristic value of the second power supply and the rated limit value of the second power supply. By adjusting, the first power source and the second power source can be used appropriately and flexibly.
- the sharing ratio of one electric power is determined according to the difference between the current characteristic value of at least one of the first power supply and the second power supply and the rated limit value of at least one of the first power supply and the second power supply.
- the adjusting means sets the share of the first power as the difference between the current characteristic value of the first power supply and the rated limit value of the first power supply becomes smaller. Decrease.
- the second power supply control device reduces the share of the first power (that is, reduces the burden on the first power supply) in the same manner as the first power supply control device.
- This state can be returned to a state where stable operation or intended operation can be performed.
- the second power supply control device increases the sharing ratio of the first power (that is, by increasing the burden on the first power supply, as in the first power supply control device, the first power supply control device substantially increases the first power supply share).
- the state of the second power source can be returned to a state where stable operation or intended operation can be performed.
- FIG. 1 is a block diagram showing an example of the configuration of the vehicle 1 according to this embodiment.
- the vehicle 1 includes a motor generator 10, an axle 21, wheels 22, a power supply system 30, and a specific example of “power supply control device (that is, selection means, adjustment means, and control means)”.
- ECU40 which is.
- the motor generator 10 functions as an electric motor that supplies power to the axle 21 (that is, power necessary for traveling of the vehicle 1) by driving mainly using electric power output from the power supply system 30 during power running. Furthermore, the motor generator 10 mainly functions as a generator for charging the battery 31 and the capacitor 32 included in the power supply system 30 during regeneration.
- the axle 21 is a transmission shaft for transmitting the power output from the motor generator 10 to the wheels 22.
- the wheel 22 is a means for transmitting the power transmitted through the axle 21 to the road surface.
- FIG. 1 shows an example in which the vehicle 1 includes one wheel 22 on each side, but actually, each vehicle 22 includes one wheel 22 on each of the front, rear, left, and right sides (that is, a total of four wheels 12). Is preferred.
- FIG. 1 illustrates a vehicle 1 including a single motor generator 10.
- the vehicle 1 may include two or more motor generators 10.
- the vehicle 1 may further include an engine in addition to the motor generator 10. That is, the vehicle 1 of the present embodiment may be an electric vehicle or a hybrid vehicle.
- the power supply system 30 outputs power necessary for the motor generator 10 to function as an electric motor to the motor generator 10 during power running. Furthermore, the electric power generated by the motor generator 10 that functions as a generator is input from the motor generator 10 to the power supply system 30 during regeneration.
- Such a power supply system 30 includes a battery 31 that is a specific example of “first power supply”, a capacitor 32 that is a specific example of “second power supply”, a power converter 33, a smoothing capacitor 34, and an inverter. 35.
- the battery 31 is a storage battery that can input and output (that is, charge and discharge) electric power using an electrochemical reaction (that is, a reaction that converts chemical energy into electrical energy) or the like.
- Examples of such a battery 31 include a lead storage battery, a lithium ion battery, a nickel metal hydride battery, and a fuel cell.
- the capacitor 32 can input and output electric power using a physical action or a chemical action that accumulates electric charges (that is, electric energy).
- An example of such a capacitor 32 is an electric double layer capacitor, for example.
- the power source used instead of the battery 31 may be a power source having a larger capacity (or higher energy density) than a power source used instead of the capacitor 32.
- the power source used in place of the battery 31 may be a power source that can output a certain amount of power for a longer time than the power source used in place of the capacitor 32.
- the power source used in place of the capacitor 32 may be a power source having a larger output than the power source used in place of the battery 31.
- the power source used in place of the capacitor 32 may be a power source capable of performing power input / output more rapidly (steeply) than the power source used in place of the battery 31.
- a high capacity battery that is, a power source used in place of the battery 31
- a high output type battery that is, a power source used in place of the capacitor 32
- a high capacity Type capacitor that is, a power source used in place of the battery 31
- a high output type capacitor that is, a power source used in place of the capacitor 32.
- the power converter 33 controls the electric power output from the battery 31 and the electric power output from the capacitor 32 under the control of the ECU 40 to the required power required by the power supply system 30 (typically, the power supply system 30 is connected to the motor generator 10. In accordance with the power to be output.
- the power converter 33 outputs the converted power to the inverter 35. Further, the power converter 33 converts the power input from the inverter 35 under the control of the ECU 40 (that is, the power generated by the regeneration of the motor generator 10) to the required power (typically, required for the power supply system 30). Is electric power to be input to the power supply system 30, and is substantially converted in accordance with electric power to be input to the battery 31 and the capacitor 32).
- the power converter 33 outputs the converted power to at least one of the battery 31 and the capacitor 32.
- the power converter 33 substantially controls the distribution of power between the battery 31 and the capacitor 32 and the inverter 35 and the distribution of power between the battery 31 and the capacitor 32. Can do.
- FIG. 1 illustrates a power supply system 30 including a single power converter 33 common to the battery 31 and the capacitor 32.
- the power supply system 30 may include two or more power converters 33 (for example, a power converter 33 corresponding to the battery 31 and a power converter 33 corresponding to the capacitor 32).
- the smoothing capacitor 34 smoothes fluctuations in power supplied from the power converter 33 to the inverter 34 (actually fluctuations in voltage on the power supply line between the power converter 33 and the inverter 34) during powering. Turn into. Similarly, during the regeneration, the smoothing capacitor 34 changes the power supplied from the inverter 34 to the power converter 33 (substantially changes in the voltage in the power supply line between the power converter 33 and the inverter 34). ) Is smoothed.
- the ECU 40 is an electronic control unit configured to be able to control the entire operation of the vehicle 1.
- the ECU 40 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
- the sharing ratio is referred to as power output from the battery 31 (hereinafter referred to as “battery output power” as appropriate) and power output from the capacitor 32 (hereinafter referred to as “capacitor output power” as appropriate). ) Ratio.
- the required power is substantially the required input power to be input from the motor generator 10 to the power supply system 30. Therefore, in this case, the sharing ratio is determined based on the power input to the battery 31 with respect to the required input power (hereinafter referred to as “battery input power” as appropriate) and the power input to the capacitor 32 (hereinafter referred to as “capacitor input power” as appropriate). Ratio).
- FIG. 2 is a flowchart showing the overall flow of the control operation of the vehicle 1 of the present embodiment (substantially the control operation of the power supply system 30 and the operation of changing the sharing ratio of the battery 31 and the capacitor 32).
- the ECU 40 determines whether or not the characteristic required for the vehicle is a characteristic in which the driving performance is more important than the fuel efficiency (step S10).
- a driving mode of the vehicle 1 an example will be described in which there are a sports mode in which driving performance is emphasized and an eco mode in which fuel efficiency is emphasized.
- the ECU 40 determines whether or not the characteristic required for the vehicle is a characteristic in which the driving performance is more important than the fuel efficiency based on the user's operation via the operation button for designating the sports mode and the eco mode. It may be determined.
- the ECU 40 may voluntarily determine whether or not the characteristics required of the vehicle are characteristics that place importance on the traveling performance rather than the fuel efficiency performance in consideration of the traveling condition of the vehicle.
- the characteristic required for the vehicle is not a characteristic that emphasizes the driving performance rather than the fuel consumption performance (that is, the characteristic required for the vehicle emphasizes the fuel efficiency more than the driving performance). If it is determined (step S10: No), the ECU 40 selects the eco mode as the vehicle travel mode (step S12). In this case, the ECU 40 determines (in other words, adjusts) the sharing ratio between the battery 31 and the capacitor 32 based on the eco mode (step S13). The operation of determining the sharing ratio between the battery 31 and the capacitor 32 based on the eco mode will be described in detail later (see FIGS. 3 and 4).
- the ECU 40 controls the power converter 32 so that the battery 31 inputs and outputs battery power and the capacitor 32 inputs and outputs capacitor power according to the sharing ratio determined in step S13 (step S14).
- the battery 31 performs input / output of battery power according to the sharing ratio determined in step S13.
- the capacitor 32 inputs and outputs capacitor power according to the sharing ratio determined in step S13.
- FIG. 3 is a graph schematically showing how the sharing ratio of the battery 31 and the capacitor 32 is changed.
- FIG. 4 is a graph schematically showing the relationship between the required output power, the battery output power, and the capacitor output power when the sharing ratios of the battery 31 and the capacitor 32 are different.
- the sport mode and the eco mode are travel modes that can be distinguished from each other depending on, for example, the sharing ratio of the battery 31 and the capacitor 32. .
- the sport mode and the eco mode are distinguished according to the magnitude relationship between the sharing ratio of the battery 31 (that is, the sharing ratio of the battery output power) and the sharing ratio of the capacitor 32 (that is, the sharing ratio of the capacitor output power). Also good.
- the sharing ratio of the battery 31 (that is, the sharing ratio of the battery output power) is the sharing ratio of the capacitor 32 (that is, the capacitor A traveling mode in which the output power sharing ratio) is greater
- FIG. 3A shows an example in which the sharing ratio of the battery 31 is increased in the sport mode as the degree of emphasis on running performance is stronger (that is, the shift to the left side in FIG. 3A). Show.
- the ECU 40 determines the sharing ratio of the battery 31 and the capacitor 32 so that the sharing ratio of the battery 31 during power running is larger than the sharing ratio of the capacitor 32 during power running. Good. Specifically, for example, as indicated by a point S1 in FIG. 3A, the ECU 40 determines that the battery 31 and the capacitor 31 so that the sharing ratio of the battery 31 is 100% and the sharing ratio of the capacitor 32 is 0%. You may determine the share ratio of 32. In this case, as shown in FIG. 4A, all of the required output power is output from the battery 31 as battery output power. Alternatively, for example, as indicated by point S2 in FIG.
- the eco mode may be a traveling mode in which the sharing ratio of the battery 31 is smaller than the sharing ratio of the capacitor 32 during powering.
- FIG. 3A shows an example in which the sharing ratio of the battery 31 is smaller in the eco mode as the degree of emphasis on the fuel efficiency is stronger (that is, the shift to the right side in FIG. 3A). Show.
- the ECU 40 determines the sharing ratio of the battery 31 and the capacitor 32 so that the sharing ratio of the battery 31 during power running is smaller than the sharing ratio of the capacitor 32 during power running. Good. Specifically, for example, as shown at point E1 in FIG. 3A, the ECU 40 sets the battery 31 and the capacitor so that the sharing ratio of the battery 31 is 0% and the sharing ratio of the capacitor 32 is 100%. You may determine the share ratio of 32. In this case, as shown in FIG. 4C, all of the required output power is output from the capacitor 32 as the capacitor output power. Alternatively, for example, as indicated by point E2 in FIG.
- the ECU 40 shares the battery 31 and the capacitor 32 such that the sharing ratio of the battery 31 is 30% and the sharing ratio of the capacitor 32 is 70%.
- the proportion may be determined.
- 30% of the required output power is output from the battery 31 as the battery output power
- 70% of the required output power is output from the capacitor 32 as the capacitor output power. Is output.
- the sharing ratio determined in step S13 in FIG. 2 is (i) the battery output power corresponding to the sharing ratio is determined by the battery 31. Maintained when the upper limit value of the battery output power that can be output is not exceeded and (ii) the capacitor output power corresponding to the sharing ratio does not exceed the upper limit value of the capacitor output power that the capacitor 32 can output. The That is, when both the battery output power and the capacitor output power corresponding to the sharing ratio determined in step S13 in FIG. 2 do not exceed the respective upper limit values, the ECU 40 sets the sharing ratio determined in step S13. Accordingly, it is preferable to continue to control the power converter 32 so that the battery 31 outputs battery output power and the capacitor 32 outputs capacitor output power.
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Abstract
Description
<1>
上記課題を解決するための第1の電源制御装置は、第1電力の入出力を行う第1電源と、第2電力の入出力を行い且つ前記第1電源よりも容量が小さい一方で出力が大きい第2電源との双方を含む電源システムを用いて走行する車両を制御する電源制御装置であって、前記電源システムに要求される要求電力に対する前記第1電力の分担割合が異なる複数の走行モードから、前記車両に要求される特性に応じて所望の走行モードを選択する選択手段と、前記所望の走行モードに対応する分担割合に従って前記第1電力及び前記第2電力の入出力を行うように前記第1電源及び前記第2電源を制御する制御手段とを備える。
第1の電源制御装置の他の態様では、前記複数の走行モードは、(i)前記第1電力の分担割合が第1閾値よりも小さい第1走行モードと、(ii)前記第1電力の分担割合が前記第1閾値よりも大きい第2走行モードとを含んでいる。
第1の電源制御装置の他の態様では、前記複数の走行モードは、(i)前記第1電力の分担割合が、前記要求電力に対する前記第2電力の分担割合よりも小さい第1走行モードと、(ii)前記第1電力の分担割合が、前記第2電力の分担割合よりも大きい第2走行モードとを含んでいる。
複数の走行モードが第1及び第2走行モードを含む第1の電源制御装置の態様では、前記車両に要求される特性が走行性能よりも燃費性能を重視する特性である場合には、前記選択手段は、前記第1走行モードを選択し、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合には、前記選択手段は、前記第2走行モードを選択する。
車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合に第2走行モードを選択する第1の電源制御装置の態様では、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分が第2閾値より小さい場合には、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合であっても、前記選択手段は、前記第2走行モードを選択しない。
第1の電源制御装置の他の態様では、前記制御手段は、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて、前記第1電力の分担割合を調整する。
上述の如く第1電源及び第2電源のうちの少なくとも一方の現在特性値と第1電源及び第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて1電力の分担割合を調整する第1の電源制御装置の態様では、前記制御手段は、前記第1電源の現在特性値と前記第1電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を減少させる。
上述の如く第1電源及び第2電源のうちの少なくとも一方の現在特性値と第1電源及び第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて1電力の分担割合を調整する第1の電源制御装置の態様では、前記制御手段は、前記第2電源の現在特性値と前記第2電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を増加させる。
<9>
上記課題を解決する第2の電源制御装置は、第1電力の入出力を行う第1電源と、第2電力の入出力を行い且つ前記第1電源よりも容量が小さい一方で出力が大きい第2電源との双方を含む電源システムを用いて走行する車両を制御する電源制御装置であって、前記車両に要求される特性に応じて、前記電源システムに要求される要求電力に対する前記第1電力の分担割合を動的に調整する調整手段と、前記調整手段が調整した分担割合に従って前記第1電力及び前記第2電力の入出力を行うように、前記第1電源及び前記第2電源を制御する制御手段とを備える。
第2の電源制御装置の他の態様では、前記調整手段は、(i)前記車両に要求される特性が走行性能よりも燃費性能を重視する特性である場合には、前記第1電力の分担割合が所第1閾値よりも小さくなるように前記第1電力の分担割合を調整し、(ii)前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合には、前記第1電力の分担割合が前記閾値よりも大きくなるように前記第1電力の分担割合を調整する。
車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合に第1電力の分担割合が第1閾値よりも大きくなるように第1電力の分担割合を調整する第2の電源制御装置の態様では、第2走行モードを選択する第1の電源制御装置の態様では、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分が第2閾値より小さい場合には、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合であっても、前記調整手段は、前記第1電力の分担割合が前記第1閾値よりも大きくなるように前記第1電力の分担割合を調整しない。
第2の電源制御装置の他の態様では、前記調整手段は、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて、前記第1電力の分担割合を更に調整する。
上述の如く第1電源及び第2電源のうちの少なくとも一方の現在特性値と第1電源及び第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて1電力の分担割合を調整する第2の電源制御装置の態様では、前記調整手段は、前記第1電源の現在特性値と前記第1電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を減少させる。
上述の如く第1電源及び第2電源のうちの少なくとも一方の現在特性値と第1電源及び第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて1電力の分担割合を調整する第2の電源制御装置の態様では、前記調整手段は、前記第2電源の現在特性値と前記第2電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を増加させる。
はじめに、図1を参照して、本実施形態の車両1の構成について説明する。ここに、図1は、本実施形態の車両1の構成の一例を示すブロック図である。
続いて、図2から図5を参照しながら、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)について説明する。
初めに、図2を参照しながら、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)の全体の流れについて説明する。図2は、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)の全体の流れを示すフローチャートである。
続いて、図3及び図4を参照しながら、スポーツモード及びエコモードに応じた電池31及びキャパシタ32の分担割合の変更(実質的には、決定)動作の詳細について説明する。図3は、電池31及びキャパシタ32の分担割合の変更の様子を模式的に示すグラフである。図4は、電池31及びキャパシタ32の分担割合が異なる場合の、要求出力電力と電池出力電力及びキャパシタ出力電力との間の関係を模式的に示すグラフである。
続いて、図6及び図7を参照しながら、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)の変形例について説明する。
初めに、図6を参照しながら、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)の第1変形例について説明する。図6は、キャパシタ32のSOC(State Of Charge)に応じた電池31及びキャパシタ32の分担割合の調整動作を示すグラフである。
続いて、図7を参照しながら、本実施形態の車両1の制御動作(実質的には、電源システム30の制御動作であり、電池31及びキャパシタ32の分担割合の変更動作)の第2変形例について説明する。図7は、電池31の温度に応じた電池31及びキャパシタ32の分担割合の調整動作を示すグラフである。
10 モータジェネレータ
21 車軸
22 車輪
30 電源システム
31 電池
32 キャパシタ
33 電力変換器
34 平滑コンデンサ
35 インバータ
40 ECU
Claims (16)
- 第1電力の入出力を行う第1電源と、第2電力の入出力を行い且つ前記第1電源よりも容量が小さい一方で出力が大きい第2電源との双方を含む電源システムを用いて走行する車両を制御する電源制御装置であって、
前記電源システムに要求される要求電力に対する前記第1電力の分担割合が異なる複数の走行モードから、前記車両に要求される特性に応じて所望の走行モードを選択する選択手段と、
前記所望の走行モードに対応する分担割合に従って前記第1電力及び前記第2電力の入出力を行うように前記第1電源及び前記第2電源を制御する制御手段と
を備えることを特徴とする電源制御装置。 - 前記複数の走行モードは、(i)前記第1電力の分担割合が第1閾値よりも小さい第1走行モードと、(ii)前記第1電力の分担割合が前記第1閾値よりも大きい第2走行モードとを含んでいる
ことを特徴とする請求項1に記載の電源制御装置。 - 前記複数の走行モードは、(i)前記第1電力の分担割合が、前記要求電力に対する前記第2電力の分担割合よりも小さい第1走行モードと、(ii)前記第1電力の分担割合が、前記第2電力の分担割合よりも大きい第2走行モードとを含んでいる
ことを特徴とする請求項1に記載の電源制御装置。 - 前記車両に要求される特性が走行性能よりも燃費性能を重視する特性である場合には、前記選択手段は、前記第1走行モードを選択し、
前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合には、前記選択手段は、前記第2走行モードを選択する
ことを特徴とする請求項2に記載の電源制御装置。 - 前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分が第2閾値より小さい場合には、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合であっても、前記選択手段は、前記第2走行モードを選択しない
ことを特徴とする請求項4に記載の電源制御装置。 - 前記制御手段は、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて、前記第1電力の分担割合を調整する
ことを特徴とする請求項1に記載の電源制御装置。 - 前記制御手段は、前記第1電源の現在特性値と前記第1電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を減少させる
ことを特徴とする請求項6に記載の電源制御装置。 - 前記制御手段は、前記第2電源の現在特性値と前記第2電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を増加させる
ことを特徴とする請求項6に記載の電源制御装置。 - 第1電力の入出力を行う第1電源と、第2電力の入出力を行い且つ前記第1電源よりも容量が小さい一方で出力が大きい第2電源との双方を含む電源システムを用いて走行する車両を制御する電源制御装置であって、
前記車両に要求される特性に応じて、前記電源システムに要求される要求電力に対する前記第1電力の分担割合を動的に調整する調整手段と、
前記調整手段が調整した分担割合に従って前記第1電力及び前記第2電力の入出力を行うように、前記第1電源及び前記第2電源を制御する制御手段と
を備えることを特徴とする電源制御装置。 - 前記調整手段は、(i)前記車両に要求される特性が走行性能よりも燃費性能を重視する特性である場合には、前記第1電力の分担割合が第1閾値よりも小さくなるように前記第1電力の分担割合を調整し、(ii)前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合には、前記第1電力の分担割合が前記第1閾値よりも大きくなるように前記第1電力の分担割合を調整する
ことを特徴とする請求項9に記載の電源制御装置。 - 前記調整手段は、(i)前記車両に要求される特性が走行性能よりも燃費性能を重視する特性である場合には、前記第1電力の分担割合が、前記要求電力に対する前記第2電力の分担割合よりも小さくなるように前記第1電力の分担割合を調整し、(ii)前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合には、前記第1電力の分担割合が、前記第2電力の分担割合よりも大きくなるように前記第1電力の分担割合を調整する
ことを特徴とする請求項9に記載の電源制御装置。 - 前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分が第2閾値より小さい場合には、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合であっても、前記調整手段は、前記第1電力の分担割合が前記第1閾値よりも大きくなるように前記第1電力の分担割合を調整しない
ことを特徴とする請求項10に記載の電源制御装置。 - 前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分が第2閾値より小さい場合には、前記車両に要求される特性が燃費性能よりも走行性能を重視する特性である場合であっても、前記調整手段は、前記第1電力の分担割合が前記第2電力の分担割合よりも大きくなるように前記第1電力の分担割合を調整しない
ことを特徴とする請求項11に記載の電源制御装置。 - 前記調整手段は、前記第1電源及び前記第2電源のうちの少なくとも一方の現在特性値と前記第1電源及び前記第2電源のうちの少なくとも一方の定格限界値との間の差分に応じて、前記第1電力の分担割合を更に調整する
ことを特徴とする請求項9に記載の電源制御装置。 - 前記調整手段は、前記第1電源の現在特性値と前記第1電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を減少させる
ことを特徴とする請求項14に記載の電源制御装置。 - 前記調整手段は、前記第2電源の現在特性値と前記第2電源の定格限界値との間の差分が小さくなるほど前記第1電力の分担割合を増加させる
ことを特徴とする請求項14に記載の電源制御装置。
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