WO2013051502A1 - 設置型充電システム - Google Patents
設置型充電システム Download PDFInfo
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- WO2013051502A1 WO2013051502A1 PCT/JP2012/075370 JP2012075370W WO2013051502A1 WO 2013051502 A1 WO2013051502 A1 WO 2013051502A1 JP 2012075370 W JP2012075370 W JP 2012075370W WO 2013051502 A1 WO2013051502 A1 WO 2013051502A1
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- charging
- unit
- data
- control unit
- charging unit
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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
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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
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/11—DC charging controlled by the charging station, e.g. mode 4
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/305—Communication interfaces
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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
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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
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge 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
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates to a stationary charging system that charges a battery mounted on a vehicle, and more particularly to a stationary charging system that includes a plurality of charging units.
- the method of charging a battery using electric power supplied from the outside of the vehicle is roughly divided into a method using an in-vehicle charger mounted on the vehicle and a method using an installed charging system in a charging station or the like.
- an in-vehicle charger and a household outlet are connected, and for example, AC 100V is converted to DC 200V by the in-vehicle charger, and the battery is charged relatively slowly with the charging power of DC 200V.
- AC200V is converted to DC400V by an installation type charging system, and the battery is rapidly charged with the charging power of DC400V.
- a power supply unit 102 including one charging unit (CHG) 103, a control unit (MCU) 105 that controls the charging unit 103, a control unit 105, A first CAN communication line 106 that enables transmission / reception of data to / from the charging unit 103, and a second CAN communication line that enables transmission / reception of data between the control unit 105 and the vehicle via a charging gun (connector) 109.
- a device including an I / F unit 108 including a liquid crystal touch panel 107 for performing an operation such as charging start 107 is known.
- the data on the state of the power supply unit (power supply unit state data) is transmitted to the vehicle side within a predetermined time defined by the CHAdeMO standard. It is obliged to send.
- each charging unit creates charging unit state data relating to its own state (such as the presence or absence of a failure), and then the control unit transmits each charging unit.
- the charging unit state data is received from the charging unit, power unit state data is created based on the received charging unit state data, and the power unit state data is transmitted to the vehicle side.
- the charging unit status data is transmitted from each charging unit to the control unit all at once, so that the control unit receives the charging unit status data of all charging units in one reception.
- the processing capacity of the control unit may be exceeded. If the processing capacity of the control unit is exceeded, the control unit may fail to receive data, and in this case, the control unit tries to receive the charging unit status data of all charging units again. For this reason, in the conventional installation-type charging system, there is a possibility that transmission of power supply unit state data to the vehicle cannot be completed within a predetermined time defined by the CHAdeMO standard.
- This invention is made
- the place made into the subject is the installation type charging system which can make a control unit receive the data from a charging unit reliably, without raising a cost. It is to provide.
- an installed charging system is an installed charging system that charges a battery mounted on a vehicle using DC charging power generated based on AC input power, Data between a power supply unit that generates DC charging power based on AC input power, a plurality of charging units that constitute the power supply unit, a control unit that controls the plurality of charging units, and the control unit and the plurality of charging units
- a first CAN communication line that enables transmission and reception of Each of the plurality of charging units receives the control command data transmitted from the control unit and creates charging unit state data regarding the state of the charging unit,
- the control unit groups a plurality of charging units into a plurality of charging unit groups, transmits control command data to at least one charging unit group among the plurality of charging unit groups, and transmits the control command data to another charging unit group. By shifting the timing, the timing for receiving the charging unit state data from the plurality of charging units is shifted.
- the control unit since the timing at which the control unit receives the charging unit state data is shifted, the number of charging unit state data received by the control unit at a time can be reduced. Therefore, according to this configuration, the control unit can reliably receive data from the charging unit without using an expensive control unit with high processing capability.
- control unit shifts the timing for receiving the charging unit state data for each charging unit group by shifting the timing for transmitting the control command data for each charging unit group.
- the timing which makes a control unit receive charging unit state data can be disperse
- the installed charging system further includes a second CAN communication line that enables data transmission / reception between the control unit and the vehicle,
- the control unit receives charging unit status data from a plurality of charging units within a predetermined time after receiving vehicle-side command data transmitted from the vehicle via the second CAN communication line, and stores the charging unit status data in the charging unit status data. It is preferable that the amount of deviation of the timing for transmitting the control command data is determined so that the power supply unit state data relating to the state of the power supply unit is generated and the transmission of the power supply unit state data to the vehicle is completed.
- the charging unit state data in the installation type charging system includes, for example, charging unit failure information
- the power supply unit state data includes, for example, power supply unit failure information created based on the charging unit failure information. Shall be.
- the AC input power in the installation type charging system is three-phase AC power
- the charging unit group is composed of three charging units to which any one phase AC power out of the three phases is input. May be.
- FIG. 1 shows a block diagram of a stationary charging system 1 according to an embodiment of the present invention.
- the installed charging system 1 includes a power supply unit 2 including a plurality (9 in this embodiment) of charging units 3 (CHG1 to 9), and a control unit (MCU) that controls each charging unit 3. ) 5, a first CAN communication line 6 that enables data transmission / reception between the control unit 5 and each charging unit 3, and a data transfer between the control unit 5 and the vehicle via a charging gun (connector) 9.
- a second CAN communication line 7 enabling transmission and reception and an I / F unit 8 including a liquid crystal touch panel for performing an operation such as charging start are provided.
- Each charging unit 3 is connected in parallel to the first CAN communication line 6, and the control unit 5 controls the first charging unit group 4-1 (CHG 1 to 3) composed of three charging units 3, respectively.
- the charging unit groups 4-2 (CHG4 to 6) and third charging unit groups 4-3 (CHG7 to 9) are grouped.
- the input power supplied to the power supply unit 2 is three-phase AC power, and the three charging units 3 constituting each charging unit group 4-1, 4-2, 4-3 have three phases. Any one-phase AC power is input. For example, 4-1 is input in the U phase, 4-2 is in the V phase, and 3-3 is input in the W phase.
- FIG. 2 shows a block diagram of the charging unit 3.
- the charging unit 3 includes a rectifying / smoothing circuit 10 that rectifies and smoothes the one-phase AC power to generate DC power, and switches the DC power generated by the rectifying / smoothing circuit 10 to switch means 12a.
- Data is transmitted / received between the DC / DC converter circuit 11 that switches to DC power to be charged power by switching at 12 to 12d and the control unit 5 via the first CAN communication line 6, and the switch means 12a to 12d.
- a control circuit 15 for controlling the duty ratio.
- the rectifying / smoothing circuit 10 includes a diode bridge circuit 16, a smoothing capacitor 17, and a power factor correction circuit (not shown).
- the DC / DC converter circuit 11 has an inverter circuit 12 composed of four switch means 12a to 12d such as IGBT and MOSFET, a booster circuit 13 composed of a transformer, and an output circuit 14 connected to the secondary side of the transformer. is doing.
- the output circuit 14 includes a diode bridge circuit 18, an LC low-pass filter including a coil 19 and a smoothing capacitor 20, and a shunt resistor 21 of several m ⁇ .
- the charging unit 3 also includes a current detection circuit 22 that detects a DC current flowing through the shunt resistor 21 and a voltage detection circuit 23 that detects a DC voltage after passing through the LC low-pass filter.
- the control circuit 15 transmits / receives data to / from the control unit 5 via the first CAN communication line 6. Specifically, the control circuit 15 has a failure diagnosis function for determining whether or not the rectifying / smoothing circuit 10 and the DC / DC converter circuit 11 have failed.
- the control circuit 15 receives control command data from the control unit 5 and receives a charging unit. 3 is generated, and the charging unit state data is transmitted to the control unit 5 via the first CAN communication line 6.
- the charging unit status data includes identification information (ID) of the charging unit 3, failure information (failure code) of the charging unit 3, information on the current value and voltage value detected by the current detection circuit 22 and the voltage detection circuit 23, and the like. included.
- the control unit 5 transmits / receives data to / from the vehicle via the second CAN communication line 7. Specifically, when the control unit 5 receives the charging unit state data from each charging unit 3, the control unit 5 determines the failure information of the power supply unit 2 based on the failure information of the charging unit 3 included in the charging unit state data. The power supply state data including the power supply state data is generated and transmitted to the vehicle via the second CAN communication line 7.
- control unit 5 and each charging unit 3 are activated, and the control unit 5 groups the charging units 3. This grouping will be described later.
- the installed charging system 1 enters the “charging standby (S1)” state, and the charging start button displayed on the I / F unit 8 is pressed during the “charging standby (S1)” state. Then, the installation-type charging system 1 is in a “charging start (S2)” state.
- the control unit 5 receives battery state data including the capacity of the battery transmitted from the vehicle, determines the compatibility with the vehicle based on the battery state data, and then fails in the power supply unit 2 Transmit power supply state data including information and the like.
- the vehicle receives the power supply state data, determines compatibility with the installed charging system 1 based on the power supply state data, and then transmits vehicle-side command data for permitting charging to the control unit 5. .
- the stationary charging system 1 When the control unit 5 receives the vehicle-side command data, the stationary charging system 1 enters a “connector lock (S3)” state, and a connector lock that locks the charging gun (connector) 9 to the vehicle under the control of the control unit 5. Processing is performed.
- the installation type charging system 1 enters the state of “insulation check (S4)”, and an insulation check process for confirming that a short circuit or the like has not occurred in the charging gun 9 by applying a voltage for a short time. Is done.
- the installed charging system 1 enters a state of “charging (S5)”, and charging is performed based on the vehicle-side command data regarding the target charging current value transmitted from the vehicle.
- the vehicle-side command data regarding the target charging current value is transmitted to the control unit 5 every 100 ms via the second CAN communication line 7.
- the control unit 5 receives the vehicle-side command data, the control unit 5 creates control command data related to the current value output from each charging unit 3 based on the vehicle-side command value data, and transmits the control command data via the first CAN communication line 6. Data is transmitted to each charging unit 3 to control the output current of each charging unit 3.
- the nine charging units 3 constituting the power supply unit 2 are divided into the first charging unit group 4-1 including the charging units (CHG1 to 3) and the charging units (CHG4 to 6). It is assumed that the second charging unit group 4-2 configured and the third charging unit group 4-3 configured by the charging units (CHG7 to CHG9) are grouped. Further, in this specific example, it is assumed that the power supply state data generated by the control unit 5 must be transmitted to the vehicle via the second CAN communication line 7 within 200 ms after the main power supply is turned on.
- FIG. 4 shows a timing chart when the installed charging system 1 is started (main power ON to charging standby (S1)). As shown in the figure, when the main power supply of the installed charging system 1 is turned on and the control unit 5 and the charging units 3 start to be activated, the initialization of the charging units 3 is started all at once.
- the control unit 5 creates control command data for causing each charging unit 3 to transmit charging unit state data, and sends the control command data to the first CAN communication line 6.
- the control unit 5 first transmits control command data to the charging units (CHG1 to CHG3) constituting the first charging unit group 4-1, and after the elapse of 20 ms, the second charging unit group 4-2.
- Control command data is transmitted to the charging units (CHG4 to 6) constituting the control unit, and further, control command data is transmitted to the charging units (CHG7 to 9) constituting the third charging unit group 4-3 after the elapse of 20 ms.
- the amount of deviation of the timing for transmitting the control command data is within a predetermined time (200 ms in this specific example) after the control unit 5 receives the vehicle-side command data transmitted from the vehicle via the second CAN communication line 7.
- the control unit 5 receives the charging unit state data from each charging unit 3 to create the power unit state data, and is set to a value that can complete the transmission of the power unit state data to the vehicle.
- the time required for generating the charging unit state data after each charging unit 3 receives the control command data is 90 ms, and the control unit 5 stores the last charging unit state data (charging unit (CHG7 to CHG9)).
- Each charging unit 3 creates charging unit state data when receiving control command data.
- the charging unit state data is transmitted to the control unit 5 via the first CAN communication line 6 in the order of creation. That is, the control unit 5 first receives the charging unit state data from the charging units (CHG1 to CHG3) configuring the first charging unit group 4-1, and after the elapse of 20 ms, the charging unit configuring the second charging unit group 4-2.
- the charging unit status data is received from the units (CHG4 to 6), and further, after the elapse of 20 ms, the charging unit status data is received from the charging units (CHG7 to 9) constituting the third charging unit group 4-3.
- control unit 5 When the control unit 5 receives the charging unit state data from all the charging units (CHG1 to CHG9), the control unit 5 creates the power source unit state data including the failure information of the power source unit 2 based on the received charging unit state data. Send to.
- control unit 5 transmits the control command data at different timings for the charging unit groups 4-1, 4-2, and 4-3.
- the control unit 5 shifts the timing at which the control unit 5 transmits the control command data for each of the charging unit groups 4-1, 4-2, and 4-3.
- the timing for receiving the charging unit state data can be distributed. Therefore, according to the installed charging system 1 according to the present embodiment, the number of charging unit state data received by the control unit 5 at a time can be reduced.
- the installation type charging system 1 which concerns on this embodiment, it can prevent that the number of the charging unit state data received at once exceeds the processing capacity of the control unit 5, and the control unit 5 is 1st CAN.
- the charging unit state data can be reliably received during a predetermined communication cycle of the communication line 6 (in this embodiment, 20 ms).
- the control unit 5 sets the amount of deviation of the timing for transmitting the control command data within a predetermined time after the control unit 5 receives the vehicle-side command data.
- the power supply unit state data is created based on the state data, and is set to a value that can be transmitted to the vehicle. Therefore, the transmission of the power supply unit state data to the vehicle is completed within the predetermined time. It is possible to prevent it from being lost.
- the charging unit group 4-1, 4- since the control unit 5 has a processing capability that can receive three charging unit state data at a time, the charging unit group 4-1, 4- If the control unit 5 has a processing capacity sufficient to receive six charging unit status data at a time, the charging unit groups (for example, 4- The timing for transmitting to 1 and 4-2) may be shifted from the timing for transmitting to another charging unit group (for example, 4-3). In this way, by optimizing the amount of timing deviation to be transmitted to each charging unit group according to the processing capacity of the control unit, charging can be performed while satisfying the request for the transmission time of the power supply unit state data to the vehicle. The number of units that can be installed can be increased.
- the power supply part 2 is comprised by the nine charging units 3, the number of the charging units 3 can be changed arbitrarily according to the required charging power.
- the number of charging units 3 is preferably a multiple of 3, and each charging unit group (4-1 to 4-n (n is an integer of 2 or more)) ) Is preferably composed of three charging units 3.
- the nine charging units 3 constituting the power supply unit 2 are divided into the first charging unit group 4-1 including the charging units (CHG1 to 3) and the charging units (CHG4 to 6).
- the charging unit 3 is grouped into a second charging unit group 4-2 configured and a third charging unit group 4-3 configured of charging units (CHG7 to CHG9).
- the charging unit group can be formed by three arbitrary charging units 3.
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Abstract
Description
このうち前者の手法においては、車載充電器と家庭用コンセントとを接続し、車載充電器により、例えばAC100VをDC200Vに変換し、DC200Vの充電電力で比較的ゆっくりとバッテリーを充電する。
一方、後者の手法においては、設置型充電システムにより、例えばAC200VをDC400Vに変換し、DC400Vの充電電力でバッテリーを急速充電する。
この他、1個の充電ユニットからなる電源部を備えた設置型充電システムとしては、特許文献1に記載のものが知られている。
この設置型充電システムでは、各充電ユニットから出力される直流電力を足し合わせたものを充電電力とすることで、高出力化を実現している。
制御ユニットの処理能力を超えてしまうと、制御ユニットはデータの受信に失敗する場合があり、その場合、制御ユニットは再度、全充電ユニットの充電ユニット状態データを受信しようとする。
このため、従来の設置型充電システムでは、CHAdeMO規格で定められた所定時間内に、車両への電源部状態データの送信を完了させることができなくなるおそれがあった。
交流入力電力に基づいて直流充電電力を生成する電源部と、電源部を構成する複数の充電ユニットと、複数の充電ユニットを制御する制御ユニットと、制御ユニットと複数の充電ユニットとの間でデータの送受信を可能にする第1CAN通信ラインと、を備え、
複数の充電ユニットの各々は、制御ユニットから送信された制御指令データを受信して、該充電ユニットの状態に関する充電ユニット状態データを作成する一方、
制御ユニットは、複数の充電ユニットを複数の充電ユニットグループにグルーピングするとともに、制御指令データを複数の充電ユニットグループのうち少なくとも1つの充電ユニットグループに送信するタイミングと、他の充電ユニットグループに送信するタイミングとをずらすことにより、複数の充電ユニットから充電ユニット状態データを受信するタイミングをずらせることを特徴とする。
したがって、この構成によれば、処理能力の高い高価な制御ユニットを用いることなく、確実に制御ユニットに充電ユニットからのデータを受信させることができる。
したがって、この構成によれば、制御ユニットが一度に受信する充電ユニット状態データの数をさらに減らすことができるので、より確実に制御ユニットに充電ユニットからのデータを受信させることができる。
上記制御ユニットは、第2CAN通信ラインを介して車両から送信された車両側指令データを受信した後の所定時間内に、複数の充電ユニットから充電ユニット状態データを受信し、該充電ユニット状態データに基づいて電源部の状態に関する電源部状態データを作成し、車両への該電源部状態データの送信を完了させるように、制御指令データを送信するタイミングのずれ量を決めていることが好ましい。
図1に、本発明の一実施形態に係る設置型充電システム1のブロック図を示す。
同図に示すように、設置型充電システム1は、複数(本実施形態では9個)の充電ユニット3(CHG1~9)からなる電源部2と、各充電ユニット3を制御する制御ユニット(MCU)5と、制御ユニット5と各充電ユニット3との間でデータの送受信を可能にする第1CAN通信ライン6と、充電ガン(コネクタ)9を介して制御ユニット5と車両との間でデータの送受信を可能にする第2CAN通信ライン7と、充電開始等の操作を行うための液晶タッチパネルからなるI/F部8とを備えている。
同図に示すように、充電ユニット3は、上記1相の交流電力を整流および平滑して直流電力を生成する整流平滑回路10と、該整流平滑回路10で生成された直流電力をスイッチ手段12a~12dでスイッチングして充電電力となる直流電力に変換するDC/DCコンバータ回路11と、第1CAN通信ライン6を介して制御ユニット5との間でデータの送受信を行うとともに、スイッチ手段12a~12dのデューティ比の制御を行う制御回路15とを備えている。
DC/DCコンバータ回路11は、IGBTやMOSFET等の4つのスイッチ手段12a~12dからなるインバータ回路12と、トランスからなる昇圧回路13と、トランスの二次側に接続された出力回路14とを有している。
出力回路14は、ダイオードブリッジ回路18と、コイル19および平滑コンデンサ20からなるLCローパスフィルタと、数mΩのシャント抵抗21とを有している。
具体的には、制御回路15は、整流平滑回路10およびDC/DCコンバータ回路11の故障の有無を判断する故障診断機能を有しており、制御ユニット5から制御指令データを受信して充電ユニット3の状態に関する充電ユニット状態データを作成し、第1CAN通信ライン6を介して該充電ユニット状態データを制御ユニット5に送信する。
充電ユニット状態データには、充電ユニット3の識別情報(ID)、充電ユニット3の故障情報(故障コード)、電流検出回路22および電圧検出回路23で検出された電流値および電圧値に関する情報等が含まれる。
具体的には、制御ユニット5は、各充電ユニット3から充電ユニット状態データを受信すると、該充電ユニット状態データに含まれる充電ユニット3の故障情報等に基づいて、電源部2の故障情報等を含む電源部状態データを作成し、第2CAN通信ライン7を介して該電源部状態データを車両に送信する。
次に、図3を参照して、設置型充電システム1の一連の動作について説明する。
具体的には、制御ユニット5は、車両から送信されたバッテリーの容量等を含むバッテリー状態データを受信し、該バッテリー状態データに基づいて車両との適合性を判断した後に、電源部2の故障情報等を含む電源部状態データを送信する。
車両は、電源部状態データを受信し、該電源部状態データに基づいて設置型充電システム1との適合性を判断した後に、充電を許可するための車両側指令データを制御ユニット5に送信する。
目標充電電流値に関する車両側指令データは、第2CAN通信ライン7を介して100msごとに制御ユニット5に送信される。
制御ユニット5は、車両側指令データを受信すると、該車両側指令値データに基づいて各充電ユニット3が出力する電流値に関する制御指令データを作成し、第1CAN通信ライン6を介して該制御指令データを各充電ユニット3に送信して、各充電ユニット3の出力電流を制御する。
次に、制御ユニット5-充電ユニット3間のデータ通信について具体的に説明する。
なお、本具体例では、電源部2を構成する9個の充電ユニット3は、充電ユニット(CHG1~3)により構成された第1充電ユニットグループ4-1と、充電ユニット(CHG4~6)により構成された第2充電ユニットグループ4-2と、充電ユニット(CHG7~9)により構成された第3充電ユニットグループ4-3とにグルーピングされているものとする。
また、本具体例では、主電源がオンされてから200ms以内に、制御ユニット5で作成された電源部状態データが、第2CAN通信ライン7を介して車両に送信されなければいけないものとする。
同図に示すように、設置型充電システム1の主電源がオンされ、制御ユニット5および各充電ユニット3が起動し始めると、まず、各充電ユニット3の初期化が一斉に開始される。
具体的には、制御ユニット5は、まず第1充電ユニットグループ4-1を構成する充電ユニット(CHG1~3)に対して制御指令データを送信し、20ms経過後に第2充電ユニットグループ4-2を構成する充電ユニット(CHG4~6)に対して制御指令データを送信し、さらに20ms経過後に第3充電ユニットグループ4-3を構成する充電ユニット(CHG7~9)に対して制御指令データを送信する。
例えば、各充電ユニット3が制御指令データを受信してから充電ユニット状態データを作成するのに必要な時間が90ms、制御ユニット5が最後(充電ユニット(CHG7~9))の充電ユニット状態データを受信してから電源部状態データを作成するのに必要な時間が70msの場合、各充電ユニット3の初期化の時間を無視すると、制御指令データを送信するタイミングのずれ量は、(200ms-90ms-70ms)/(3(充電ユニットグループ数)-1)=20msとなる。
充電ユニット状態データは、作成された順に第1CAN通信ライン6を介して制御ユニット5に送信される。
すなわち、制御ユニット5は、まず第1充電ユニットグループ4-1を構成する充電ユニット(CHG1~3)から充電ユニット状態データを受信し、20ms経過後に第2充電ユニットグループ4-2を構成する充電ユニット(CHG4~6)から充電ユニット状態データを受信し、さらに20ms経過後に第3充電ユニットグループ4-3を構成する充電ユニット(CHG7~9)から充電ユニット状態データを受信する。
したがって、本実施形態に係る設置型充電システム1によれば、制御ユニット5が一度に受信する充電ユニット状態データの数を減らすことができる。
このように、制御ユニットの処理能力に応じて、各充電ユニットグループに送信するタイミングのずれ量の最適化を図ることで、車両への電源部状態データの送信時間に対する要求を満たしながらも、充電ユニットの設置可能台数の拡大を図ることができる。
なお、入力電力として3相の交流電力を用いる場合は、充電ユニット3の数は3の倍数であることが好ましく、各充電ユニットグループ(4-1~4-n(n:2以上の整数))は3個の充電ユニット3で構成されていることが好ましい。
2 電源部
3 充電ユニット
4-1、4-2、4-3 充電ユニットグループ
5 制御ユニット
6 第1CAN通信ライン
7 第2CAN通信ライン
8 I/F部
9 充電ガン
10 整流平滑回路
11 DC/DCコンバータ回路
12 インバータ回路
12a~12d スイッチ手段
13 昇圧回路(トランス)
14 出力回路
15 制御回路
16 ダイオードブリッジ回路
17 平滑コンデンサ
18 ダイオードブリッジ回路
19 コイル
20 平滑コンデンサ
21 シャント抵抗
22 電流検出回路
23 電圧検出回路
Claims (5)
- 交流入力電力に基づいて生成した直流充電電力を用いて車両に搭載されたバッテリーを充電する設置型充電システムであって、
前記交流入力電力に基づいて前記直流充電電力を生成する電源部と、
前記電源部を構成する複数の充電ユニットと、
前記複数の充電ユニットを制御する制御ユニットと、
前記制御ユニットと前記複数の充電ユニットとの間でデータの送受信を可能にする第1CAN通信ラインと、
を備え、
前記複数の充電ユニットの各々は、前記制御ユニットから送信された制御指令データを受信して、該充電ユニットの状態に関する充電ユニット状態データを作成する一方、
前記制御ユニットは、前記複数の充電ユニットを複数の充電ユニットグループにグルーピングするとともに、前記制御指令データを前記複数の充電ユニットグループのうち少なくとも1つの充電ユニットグループに送信するタイミングと、他の充電ユニットグループに送信するタイミングとをずらすことにより、前記複数の充電ユニットから前記充電ユニット状態データを受信するタイミングをずらせることを特徴とする設置型充電システム。 - 前記制御ユニットは、前記制御指令データを送信するタイミングを前記充電ユニットグループごとにずらすことにより、前記充電ユニット状態データを受信するタイミングを前記充電ユニットグループごとにずらせることを特徴とする請求項1に記載の設置型充電システム。
- 前記制御ユニットと前記車両との間でデータの送受信を可能にする第2CAN通信ラインをさらに備え、
前記制御ユニットは、
前記第2CAN通信ラインを介して前記車両から送信された車両側指令データを受信した後の所定時間内に、前記複数の充電ユニットから前記充電ユニット状態データを受信し、該充電ユニット状態データに基づいて前記電源部の状態に関する電源部状態データを作成し、前記車両への該電源部状態データの送信を完了させるように、
前記制御指令データを送信するタイミングのずれ量を決めていることを特徴とする請求項1または2に記載の設置型充電システム。 - 前記充電ユニット状態データは、前記充電ユニットの故障情報を含み、
前記電源部状態データは、前記充電ユニットの故障情報に基づいて作成された前記電源部の故障情報を含むことを特徴とする請求項3に記載の設置型充電システム。 - 前記交流入力電力は、3相の交流電力であり、
前記充電ユニットグループは、前記3相のうちの任意の1相の交流電力がそれぞれ入力される3つの前記充電ユニットから構成されていることを特徴とする請求項1~4のいずれかに記載の設置型充電システム。
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Also Published As
Publication number | Publication date |
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CN103141005B (zh) | 2015-05-06 |
EP2613422A1 (en) | 2013-07-10 |
EP2613422B1 (en) | 2016-08-17 |
EP2613422A4 (en) | 2013-12-11 |
JP5219227B2 (ja) | 2013-06-26 |
CN103141005A (zh) | 2013-06-05 |
JP2013081334A (ja) | 2013-05-02 |
US8994329B2 (en) | 2015-03-31 |
KR101344931B1 (ko) | 2013-12-27 |
KR20130055000A (ko) | 2013-05-27 |
US20140292271A1 (en) | 2014-10-02 |
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