WO2013008921A1 - 通信システム及び通信装置 - Google Patents
通信システム及び通信装置 Download PDFInfo
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- WO2013008921A1 WO2013008921A1 PCT/JP2012/067960 JP2012067960W WO2013008921A1 WO 2013008921 A1 WO2013008921 A1 WO 2013008921A1 JP 2012067960 W JP2012067960 W JP 2012067960W WO 2013008921 A1 WO2013008921 A1 WO 2013008921A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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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
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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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
- B60L2210/30—AC 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
- B60L2240/40—Drive Train control parameters
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/527—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
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/147—Emission reduction of noise electro magnetic [EMI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
- H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5462—Systems for power line communications
- H04B2203/547—Systems for power line communications via DC power distribution
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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
- 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
- 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
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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
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- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Definitions
- the present invention relates to a communication system that performs communication between a vehicle such as an electric vehicle or a hybrid vehicle and a power supply device that supplies power to the vehicle, and a communication device that constitutes the communication system.
- a vehicle such as an electric vehicle or a hybrid vehicle can charge a secondary battery from the outside of the vehicle by connecting a charging plug connected to an external power feeding device to a connector of a power feeding port provided in the vehicle. It can be configured.
- a signal line called a control pilot line is provided between an output circuit provided on the power supply device side and an input circuit provided on the vehicle side, and a rectangular with a predetermined frequency is provided from the output circuit to the input circuit.
- a wave signal control pilot signal
- a capacitor for removing noise or the like is connected to an output circuit for transmitting / receiving a control pilot signal and an output terminal and an input terminal of the input circuit. For this reason, even if the communication signal is superimposed on the control pilot line, the communication signal is attenuated by the capacitors provided in the output circuit and the input circuit, and there is a concern that the communication speed is lowered or the noise resistance is lowered. Further, when a communication circuit for superimposing a communication signal is connected to the control pilot line, there is a concern that the control pilot signal cannot be reliably transmitted and received due to the influence of the communication circuit.
- This invention is made in view of such a situation, and provides the communication apparatus which can suppress that the communication signal superimposed on the control pilot line can attenuate, and the communication apparatus which comprises this communication system. With the goal.
- a communication system is provided in a power feeding device that supplies power to a vehicle, and is provided with an output circuit that outputs a rectangular wave signal having a predetermined frequency, and is provided in the vehicle, and is connected to the output circuit through a plurality of signal lines.
- An input circuit to which a rectangular wave signal output from the output circuit is input, and a communication signal is superimposed on the signal line to perform communication between the vehicle and the power supply device.
- a first communication unit that is connected between the signal lines via a first band-pass filter and transmits and receives communication signals; and is provided in the vehicle via a second band-pass filter between the signal lines.
- a second communication unit connected to transmit and receive a communication signal; a first low-pass filter interposed between the output circuit and the first communication unit; the input circuit and the second communication unit; The second low pass that was intervened between Characterized in that it comprises a filter.
- a communication system is characterized in that, in the first invention, the first and second low-pass filters include an inductor connected in series to the signal line.
- the communication system according to a third invention is characterized in that, in the second invention, the first and second low-pass filters include a resistor connected in parallel to the inductor.
- a communication system is characterized in that, in the second invention, the first and second low-pass filters comprise a resistor connected in series to the inductor.
- a communication system is characterized in that, in the second invention, the first and second low-pass filters comprise a series circuit of a capacitor and a resistor between signal lines on one end side of the inductor.
- a communication system is the communication system according to any one of the first to fifth aspects, wherein the output circuit outputs a 1 kHz rectangular wave signal, and the input circuit has an input side on the input side.
- the rising time and the falling time of the rectangular wave signal are 10 ⁇ s or less.
- a communication device including an output circuit that outputs a rectangular wave signal having a predetermined frequency via a plurality of signal lines, the signal lines being connected between the signal lines via a band-pass filter.
- the communication unit includes a communication unit that transmits and receives a communication signal by superimposing the communication signal on a line, and a low-pass filter interposed between the output circuit and the communication unit.
- the communication device wherein the generation unit that generates the rectangular wave signal, the voltage detection unit that detects the output voltage of the output circuit, and the voltage detected by the voltage detection unit And an adjustment unit that adjusts the rectangular wave signal generated by the generation unit.
- a communication apparatus including an input circuit to which a rectangular wave signal having a predetermined frequency is input via a plurality of signal lines, and connected between the signal lines via a band-pass filter, A communication unit that transmits and receives a communication signal by superimposing a communication signal on a signal line, and a low-pass filter that is interposed between the input circuit and the communication unit are provided.
- a communication device is the communication device according to the ninth invention, wherein the resistance portion has a plurality of resistors and the resistance value can be adjusted, and the resistance value of the resistance portion is adjusted in order to change the voltage of the resistance portion. And an adjustment unit.
- the first communication unit is provided in the power feeding device, and includes a plurality of signal lines (for example, a control pilot line and a ground line) between the output circuit and the input circuit. ) Are connected via a first band pass filter, and the communication signal is superimposed on the signal line to transmit and receive the communication signal.
- the second communication unit is provided in the vehicle, is connected via a second bandpass filter between a plurality of signal lines between the output circuit and the input circuit, and superimposes the communication signal on the signal line to communicate the signal. Send and receive.
- a series circuit of the first communication unit and the first band pass filter is connected between the signal lines, and a series circuit of the first communication unit and the first band pass filter is connected between the signal lines.
- the first and second communication units perform communication by superimposing a communication signal on a signal line via a band pass filter.
- the pass band of the first and second band pass filters that is, the communication band used by the first and second communication units is, for example, 2 to 30 MHz (Home Plug Green PHY), but is not limited thereto. It may be 150 kHz to 450 kHz, 1.75 MHz to 1.8 MHz, or the like.
- the control pilot line and the first communication unit and the first band pass filter are insulated or the control pilot line and the second communication unit and the second band pass filter are insulated. There is no need.
- a first low-pass filter is interposed between the output circuit and the first communication unit, and a second low-pass filter is interposed between the input circuit and the second communication unit.
- the first and second low-pass filters pass a rectangular wave signal of a predetermined frequency (for example, 1 kHz) output from the output circuit, and communicate communication signals (for example, 2 to 2) transmitted and received by the first and second communication units. 30 MHz).
- the communication signal transmitted by the second communication unit is not attenuated by the capacitors of the input circuit and the output circuit. Therefore, the attenuation of the communication signal superimposed on the control pilot line can be suppressed.
- the first and second low-pass filters include an inductor connected in series with the signal line.
- the inductor For a predetermined frequency (for example, 1 kHz) of a rectangular wave output from the output circuit, the inductor has a low impedance, and for a communication signal (for example, 2 to 30 MHz) transmitted and received by the first and second communication units. High impedance. Thereby, the communication signal transmitted and received by the first and second communication units can be blocked with a simple configuration, and the control pilot signal can be passed.
- the first and second low-pass filters include a resistor connected in parallel to the inductor.
- a resistor for example, the Q value (Quality factor) representing the sharpness of the resonance peak of the resonance circuit configured between the inductor and the capacitor existing in the output circuit or the input circuit can be reduced, which is unnecessary. Resonance can be suppressed.
- the first and second low-pass filters include a resistor connected in series to the inductor.
- a resistor for example, the Q value (Quality factor) representing the sharpness of the resonance peak of the resonance circuit configured between the inductor and the capacitor existing in the output circuit or the input circuit can be reduced, which is unnecessary. Resonance can be suppressed.
- the first and second low-pass filters include a series circuit of a capacitor and a resistor between the signal lines on one end side of the inductor.
- the output circuit outputs a 1 kHz rectangular wave signal.
- the rise time and fall time of the rectangular wave signal on the input side of the input circuit are 10 ⁇ s or less.
- the rise time is the time until the rectangular wave signal reaches 10% to 90%.
- the fall time is the time until the rectangular wave signal reaches 90% to 10%.
- the values of the first and second low-pass filters for example, the values of inductors or resistors
- the rise time and the fall time exceed 10 ⁇ s, the rectangular wave signal received by the input circuit is distorted, so that the control pilot signal cannot be correctly received.
- the rise time and the fall time By setting the rise time and the fall time to 10 ⁇ s or less, the distortion of the rectangular wave signal can be reduced and the control pilot signal can be received correctly.
- the generator generates the rectangular wave signal (control pilot signal), the voltage detector that detects the output voltage of the output circuit, and the generator detects the voltage detected by the voltage detector.
- An adjustment unit that adjusts the rectangular wave signal to be generated.
- the rectangular wave signal is a signal whose duty ratio can be changed from 0 to 100%, and includes a constant voltage of ⁇ 12 V, for example.
- the output circuit can output a desired control pilot signal.
- a resistance unit having a plurality of resistors and capable of adjusting the resistance value, and an adjustment unit for adjusting the resistance value of the resistance unit to change the voltage of the resistance unit are provided. Accordingly, for example, the resistance value of the resistance unit can be adjusted according to the state of the vehicle, and the voltage of the resistance unit can be changed to a desired value.
- communication can be reliably performed by superimposing a communication signal on the control pilot line.
- FIG. 1 is a block diagram illustrating an example of a configuration of a communication system according to a first embodiment. It is explanatory drawing which shows an example of the transmission-path attenuation
- FIG. 1 is a block diagram showing an example of the configuration of the communication system according to the first embodiment.
- a vehicle such as an electric vehicle or a hybrid vehicle and a power supply device are electrically connected via an inlet 5 (also referred to as “power supply port” or “connector”).
- the power supply apparatus includes an AC power source 6.
- the AC power supply 6 is electrically connected to the vehicle charger 7 through the power supply line 1 (ACL) and the power supply line 2 (ACN).
- a battery (secondary battery) 8 is connected to the charger 7.
- AC power can be supplied to the vehicle by connecting a plug (not shown) connected to the charging cable from the power supply device to the inlet 5, and the battery 8 mounted on the vehicle can be charged. it can.
- the communication system includes a communication device 10 provided in a power supply device, a communication device 50 provided in a vehicle, and the like.
- the communication device 10 includes an output circuit 20 that outputs a rectangular wave signal (also referred to as a “control pilot signal”) having a predetermined frequency, a communication unit 30 as a first communication unit, a first bandpass filter 31, a first low-pass filter, and a first low-pass filter 31.
- a band-pass filter 33 is provided.
- the communication device 50 includes an input circuit 60 to which a control pilot signal is input, a communication unit 70 as a second communication unit, a second band-pass filter 71, a second low-pass filter 73, and the like.
- the output circuit 20 includes a voltage generation source 21, a resistor 22, a capacitor 23, a microcomputer 24, a buffer 25, and the like as a generation unit that generates a rectangular wave signal (control pilot signal).
- the voltage source 21 generates a rectangular wave signal (control pilot signal) having a frequency of 1 kHz and a peak value of ⁇ 12V.
- the duty ratio of the control pilot signal is 20%, for example, but is not limited to this.
- the rectangular wave signal is a signal whose duty ratio can be changed from 0 to 100%, and includes a constant voltage of ⁇ 12 V, for example.
- the output circuit 20 sends a control pilot signal to the input circuit 60 provided in the vehicle via the resistor 22.
- the capacitor 23 is provided to reduce noise generated in the output circuit 20, for example.
- the value of the resistor 22 is, for example, 1.0 k ⁇ , and the capacitance of the capacitor 23 is, for example, 2.2 nF, but the numerical value is not limited thereto.
- the buffer 25 has a function as a voltage detection unit that detects the output voltage of the output circuit 20, detects the voltage across the capacitor 23, and outputs the detection result to the microcomputer 24.
- the microcomputer 24 has a function as an adjustment unit that adjusts a rectangular wave signal generated by the voltage generation source 21.
- the output circuit 20 can output a rectangular wave signal (control pilot signal) having a constant voltage of ⁇ 12 V and an arbitrary duty ratio (greater than 0 and smaller than 100) and a peak value of ⁇ 12 V. it can.
- the input circuit 60 includes a capacitor 61, a diode 62, a buffer 63, a microcomputer 64, a resistance unit 65, and the like.
- the buffer 63 detects the voltage Vout across the resistance unit 65 and outputs it to the microcomputer 64. Note that the voltage across the capacitor 61 may be detected instead of the voltage across the resistor 65.
- the resistance unit 65 includes a plurality of resistors and an open / close switch, and can change (adjust) the resistance value by opening / closing the open / close switch by a signal from the microcomputer 64.
- the microcomputer 64 has a function as an adjustment unit that adjusts the resistance value of the resistance unit 65 in order to change the voltage Vout of the resistance unit 65. That is, the microcomputer 64 changes the resistance value of the resistance unit 65 in order to change the voltage Vout according to the state of the vehicle (for example, a state related to charging). Depending on the value of the voltage Vout, the power supply device and the vehicle can detect a state related to charging.
- the vehicle charging plug is not connected.
- the resistance value of the resistance portion 65 is set to 2.74 k ⁇ , and the charging plug of the vehicle is connected to indicate a state of waiting for charging.
- the resistance value of the resistance unit 65 is set to 882 ⁇ , indicating a state during charging.
- the resistance value of the resistance unit 65 is set to 246 ⁇ , indicating that charging is in progress and the charging place needs to be ventilated.
- the capacitor 61 is provided, for example, to reduce noise entering the input circuit 60.
- the resistance value of the resistor unit 65 is, for example, about 2.74 k ⁇ , 882 ⁇ , and 246 ⁇ , and the capacitance of the capacitor 61 is, for example, 1.8 nF, but the numerical value is not limited to these.
- the output circuit 20 and the input circuit 60 are electrically connected via a plurality of signal lines (control pilot line 4 and ground line 3).
- the ground wire 3 can also be regarded as a control pilot line.
- the communication unit 30 and the communication unit 70 perform communication by superimposing predetermined communication signals on a plurality of signal lines (the control pilot line 4 and the ground line 3) provided between the output circuit 20 and the input circuit 60.
- Information transmitted / received between the communication unit 30 and the communication unit 70 includes, for example, information related to a vehicle ID, information related to charge control (start or end of charge, etc.), charge amount management (rapid charge, charge amount notification, etc.) Related to the control pilot signal, such as information related to charging, management of charging, information related to updating of navigation, and the like.
- the communication unit 30 and the communication unit 70 include, for example, a modulation circuit and a demodulation circuit using a modulation scheme such as orthogonal frequency multiplexing (OFDM) and spread spectrum (SS).
- a modulation scheme such as orthogonal frequency multiplexing (OFDM) and spread spectrum (SS).
- the communication band of communication performed by the communication unit 30 and the communication unit 70 is, for example, 2 to 30 MHz (Home Plug Green Green PHY), but is not limited to this, 150 kHz to 450 kHz (G3), 1.75 MHz to The frequency may be 1.8 MHz (FSK: frequency shift keying).
- a communication unit 30 is connected between the control pilot line 4 on the output side of the output circuit 20 and the ground line 3 via a band pass filter 31. That is, a series circuit of the band pass filter 31 and the communication unit 30 is connected between the control pilot line 4 on the output side of the output circuit 20 and the ground line 3. No transformer is used.
- the communication unit 30 superimposes a communication signal on the control pilot line 4 via the band pass filter 31 and receives a communication signal on the control pilot line 4.
- a communication unit 70 is connected between the control pilot line 4 on the input side of the input circuit 60 and the ground line 3 via a band pass filter 71. That is, a series circuit of the band pass filter 71 and the communication unit 70 is connected between the control pilot line 4 on the input side of the input circuit 60 and the ground line 3.
- the communication unit 70 superimposes the communication signal on the control pilot line 4 via the band pass filter 71 and receives the communication signal on the control pilot line 4.
- the communication unit 30 and the communication unit 70 are directly connected between the signal lines via the band pass filters 31 and 71, and perform communication by superimposing a communication signal on the signal line.
- Such a method can be referred to as a direct method or a capacitive method.
- the passbands of the bandpass filters 31 and 71 are, for example, 2 to 30 MHz (Home Plug Green EPHY), but are not limited to this, 150 kHz to 450 kHz (G3), 1.75 MHz to 1.8 MHz ( FSK (frequency shift keying) may be used.
- a low-pass filter 33 is interposed in the control pilot line 4 between the output circuit 20 and the connection point where the communication unit 30 is connected via the band-pass filter 31.
- a low-pass filter 73 is interposed in the control pilot line 4 between the connection point where the input circuit 60 and the communication unit 70 are connected via the band-pass filter 71.
- the low-pass filters 33 and 73 each pass a rectangular wave signal (control pilot signal) having a predetermined frequency (for example, 1 kHz) output from the output circuit 20 and a communication signal (for example, transmitted and received by the communication units 30 and 70). 2 to 30 MHz).
- the communication signal transmitted by the communication unit 30 is propagated to the communication unit 70 without being attenuated by the capacitor 23 of the output circuit 20.
- the communication signal transmitted by the communication unit 70 is propagated to the communication unit 30 without being attenuated by the capacitor 23 of the output circuit 20.
- the communication signal transmitted by the communication unit 70 is propagated to the communication unit 30 without being attenuated by the capacitor 61 of the input circuit 60.
- the communication signal transmitted by the communication unit 30 is propagated to the communication unit 70 without being attenuated by the capacitor 61 of the input circuit 60, the communication signal is superimposed on the control pilot line 4 to reliably communicate. Can do.
- the low-pass filter 33 includes an inductor 331 connected in series with the control pilot line 4.
- the inductance of the inductor 331 is, for example, 470 ⁇ H, but the inductance is not limited to this.
- the inductor 331 For the predetermined frequency (for example, 1 kHz) output from the output circuit 20, the inductor 331 has a low impedance. Further, the inductor 331 has a high impedance for a communication signal (for example, 2 to 30 MHz) transmitted and received by the communication units 30 and 70. As a result, communication signals transmitted and received by the communication units 30 and 70 can be blocked with a simple configuration, and a control pilot signal can be passed.
- a communication signal for example, 2 to 30 MHz
- the low-pass filter 73 includes an inductor 731 connected in series with the control pilot line 4.
- the inductance of the inductor 731 is, for example, 470 ⁇ H, but the inductance is not limited to this.
- the inductor 731 has a low impedance for a predetermined frequency (for example, 1 kHz) output from the output circuit 20. Further, the inductor 731 has a high impedance with respect to a communication signal (for example, 2 to 30 MHz) transmitted and received by the communication units 30 and 70. As a result, communication signals transmitted and received by the communication units 30 and 70 can be blocked with a simple configuration, and a control pilot signal can be passed.
- a predetermined frequency for example, 1 kHz
- a communication signal for example, 2 to 30 MHz
- the low pass filter 33 includes a resistor 332 connected in parallel to the inductor 331.
- the resistance value of the resistor 332 is, for example, 470 ⁇ , but is not limited thereto.
- a Q value representing the sharpness of the resonance peak of the resonance circuit formed between the inductor 331 and the capacitor 23 or the like existing in the output circuit 20 can be reduced. Unnecessary resonance can be suppressed.
- the low-pass filter 73 includes a resistor 732 connected in parallel to the inductor 731.
- the resistance value of the resistor 732 is, for example, 470 ⁇ , but is not limited thereto.
- FIG. 2 is an explanatory diagram illustrating an example of a transmission path attenuation characteristic of communication by the communication units 30 and 70 when the low-pass filters 33 and 73 are not provided
- FIG. 3 is a case where the low-pass filters 33 and 73 are provided.
- It is explanatory drawing which shows an example of the transmission-path attenuation
- FIG. 2 and 3 the horizontal axis indicates the frequency, and the vertical axis indicates the transmission path attenuation (voltage drop) in the control pilot line 4 between the communication units 30 and 70.
- the attenuation amount of the communication signal by the communication units 30 and 70 is smaller than when the low-pass filters 33 and 73 are not provided.
- This is improved in the range of 250 kHz to 50 MHz. Specifically, the improvement is about 20 dB at 2 MHz and about 35 dB at 30 MHz, and the improvement is about 20 dB to 35 dB at 2 to 30 MHz which is the communication band of the communication units 30 and 70.
- FIG. 4 is an explanatory diagram showing an example of the attenuation characteristic of the control pilot signal output from the output circuit 20.
- the horizontal axis indicates the frequency
- the vertical axis indicates the frequency spectrum of the voltage Vout.
- the curve indicated by reference symbol A indicates a case where the low-pass filters 33 and 73 are provided
- the curve indicated by reference symbol B indicates a case where the low-pass filters 33 and 73 are not provided.
- the attenuation characteristics are the same regardless of whether the low-pass filters 33 and 73 are provided. That is, even when the low-pass filters 33 and 73 are provided, as in the case where the low-pass filters 33 and 73 are not provided, the 20th harmonic having a frequency of 1 kHz can be passed without being attenuated at all. .
- the cutoff frequency of the low-pass filters 33 and 73 is, for example, the ninth harmonic (9 kHz) or higher, the eleventh harmonic (11 kHz) or higher, or the fifteenth
- the harmonics 15 kHz
- the cut-off frequency is increased, the control pilot signal waveform distortion or voltage fluctuation is more effectively suppressed.
- FIG. 5 is an explanatory diagram showing an example of the rising characteristics of the control pilot signal in the input circuit 60.
- the horizontal axis indicates time, and the vertical axis indicates voltage Vout.
- the voltage Vout is the voltage across the capacitor 61.
- a curve indicated by a symbol A indicates a case where the low-pass filters 33 and 73 are provided
- a curve indicated by a symbol B indicates a case where the low-pass filters 33 and 73 are not provided.
- the control pilot signal in the input circuit 60 Due to the resistance voltage division between the output circuit 20 and the input circuit 60, the control pilot signal in the input circuit 60 has a rectangular waveform of 1 kHz and becomes + 9V and ⁇ 12V.
- the rise time is the time until the voltage reaches 10% to 90%.
- the rise time is about 7.7 ⁇ s, whereas when the low-pass filters 33 and 73 are provided, the rise time. Is about 5.6 ⁇ s. That is, the rise time of the control pilot signal on the input side of the input circuit 60 is 10 ⁇ s or less.
- the values of the low-pass filters 33 and 73 may be set.
- the rise time exceeds 10 ⁇ s, the distortion of the voltage waveform received by the input circuit 60 becomes too large, so that the control pilot signal cannot be received correctly.
- the rise time exceeds 10 ⁇ s, the distortion of the voltage waveform can be reduced and the control pilot signal can be received correctly. That is, the rectangular pilot pilot signal output from the output circuit 20 is transmitted to the input circuit 60 without distortion.
- the rise time has been described, but the same applies to the fall time.
- FIG. 6 is an explanatory diagram showing an example of transmission characteristics on the input circuit side.
- the horizontal axis indicates the frequency.
- the vertical axis represents the frequency component of the control pilot signal from the output circuit 20 and the communication signal from the communication units 30 and 70 observed at the voltage Vout on the input circuit 60 side.
- a curve indicated by a symbol A indicates a case where the low-pass filters 33 and 73 are provided
- a curve indicated by a symbol B indicates a case where the low-pass filters 33 and 73 are not provided.
- the communication signal from the communication units 30 and 70 directly enters the input circuit 60 side without being attenuated.
- the voltage is detected at 64 (for example, 12V, 9V, 6V, 3V, etc.)
- the communication signal acts as a disturbance noise, and there is a possibility that the voltage determination is wrong.
- the low-pass filters 33 and 73 are provided, for example, a communication signal of 2 to 30 MHz is attenuated to tens to hundreds, but the control pilot signal is input with almost no attenuation or distortion. Since the signal can be received by the circuit 60, the voltage determination or duty ratio determination of the control pilot signal is not affected.
- the low-pass filters 33 and 73 are provided, communication signals transmitted and received by the communication units 30 and 70 are not attenuated by the output circuit 20 or the input circuit 60, and thus are superimposed on the control pilot line. Attenuation of the communication signal can be suppressed. In addition, it is possible to prevent a decrease in communication speed by the communication units 30 and 70 or a decrease in noise resistance.
- the low-pass filters 33 and 73 are provided, there is no distortion of the waveform of the control pilot signal output from the output circuit 20 or voltage fluctuation. That is, since the distortion of the control pilot signal is not increased, the reading error of the control pilot signal due to the communication signals of the communication units 30 and 70 can be prevented.
- the low-pass filter is configured by a parallel circuit of an inductor and a resistor.
- the circuit configuration is not limited to this, and may be only an inductor, or a series circuit of an inductor and a resistor. But you can.
- the control pilot line and the signal line of the ground line are used for the communication path of the rectangular wave signal or the communication signal, one or both of them may be a conductor such as a vehicle body or a casing of the power feeding device.
- the low pass filter may have the following configuration.
- FIG. 7 is a block diagram showing an example of the configuration of the communication system according to the second embodiment.
- the low-pass filter 33 includes a series circuit of a capacitor 333 and a resistor 334 connected between the control pilot line 4 and the ground line 3 instead of the resistor 332.
- the low-pass filter 73 includes a series circuit of a capacitor 733 and a resistor 734 connected between the control pilot line 4 and the ground line 3 instead of the resistor 732.
- symbol is attached
- the Q value (QualityQualfactor) representing the sharpness of the resonance peak of the resonance circuit formed between the inductor and the capacitor existing in the output circuit or the input circuit can be reduced, and unnecessary resonance is suppressed. be able to.
- This embodiment can be applied to communication with a communication band of 2 to 30 MHz, but is not limited to this, communication with a communication band of 150 kHz to 450 kHz, and a communication band of 1.75 MHz to 1.8 MHz. It can also be applied to other communications.
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Abstract
Description
以下、本発明に係る通信システムの実施の形態を示す図面に基づいて説明する。図1は実施の形態1の通信システムの構成の一例を示すブロック図である。図1に示すように、電気自動車又はハイブリッド自動車などの車両と給電装置とは、インレット5(「給電口」、「コネクタ」とも称する)を介して電気的に接続される。給電装置はAC電源6を備える。AC電源6は、電源線1(ACL)、電源線2(ACN)を通じて車両の充電器7に電気的に接続される。充電器7には、バッテリ(二次電池)8を接続してある。
図7は実施の形態2の通信システムの構成の一例を示すブロック図である。実施の形態1との違いは、低域通過フィルタ33が、抵抗332に代えて、コントロールパイロット線4と接地線3との間に接続されたキャパシタ333及び抵抗334の直列回路を備える点である。低域通過フィルタ73も同様に、抵抗732に代えて、コントロールパイロット線4と接地線3との間に接続されたキャパシタ733及び抵抗734の直列回路を備える。なお、実施の形態1と同様の箇所は同一符号を付して説明を省略する。
4 コントロールパイロット線
10、50 通信装置
20 出力回路
21 電圧発生源
22 抵抗
23 キャパシタ
24 マイコン
25 バッファ
30、70 通信部
31、71 帯域通過フィルタ
33、73 低域通過フィルタ
331、731 インダクタ
332、334、732、734 抵抗
333、733 キャパシタ
60 入力回路
61 キャパシタ
62 ダイオード
63 バッファ
64 マイコン
65 抵抗部
Claims (10)
- 車両に給電する給電装置に設けられ、所定の周波数の矩形波信号を出力する出力回路と、前記車両に設けられ、前記出力回路と複数の信号線で接続され、該出力回路が出力する矩形波信号が入力される入力回路とを備え、前記信号線に通信信号を重畳させて前記車両と給電装置との間で通信を行う通信システムにおいて、
前記給電装置に設けられ、前記信号線間に第1帯域通過フィルタを介して接続され、通信信号の送受信を行う第1通信部と、
前記車両に設けられ、前記信号線間に第2帯域通過フィルタを介して接続され、通信信号の送受信を行う第2通信部と、
前記出力回路と前記第1通信部との間に介装された第1低域通過フィルタと、
前記入力回路と前記第2通信部との間に介装された第2低域通過フィルタと
を備えることを特徴とする通信システム。 - 前記第1及び第2低域通過フィルタは、
前記信号線に対して直列に接続されるインダクタを備えることを特徴とする請求項1に記載の通信システム。 - 前記第1及び第2低域通過フィルタは、
前記インダクタに並列接続した抵抗を備えることを特徴とする請求項2に記載の通信システム。 - 前記第1及び第2低域通過フィルタは、
前記インダクタに直列接続した抵抗を備えることを特徴とする請求項2に記載の通信システム。 - 前記第1及び第2低域通過フィルタは、
前記インダクタの一端側の信号線間にキャパシタ及び抵抗の直列回路を備えることを特徴とする請求項2に記載の通信システム。 - 前記出力回路は、
1kHzの矩形波信号を出力するようにしてあり、
前記入力回路の入力側での前記矩形波信号の立ち上がり時間及び立ち下がり時間が10μs以下であることを特徴とする請求項1乃至請求項5のいずれか1項に記載の通信システム。 - 所定の周波数の矩形波信号を複数の信号線を介して出力する出力回路を備える通信装置において、
前記信号線間に帯域通過フィルタを介して接続され、該信号線に通信信号を重畳させて通信信号の送受信を行う通信部と、
前記出力回路と前記通信部との間に介装された低域通過フィルタと
を備えることを特徴とする通信装置。 - 前記矩形波信号を生成する生成部と、
前記出力回路の出力電圧を検出する電圧検出部と、
該電圧検出部で検出した電圧に応じて、前記生成部で生成する矩形波信号を調整する調整部と
を備えることを特徴とする請求項7に記載の通信装置。 - 複数の信号線を介して所定の周波数の矩形波信号が入力される入力回路を備える通信装置において、
前記信号線間に帯域通過フィルタを介して接続され、該信号線に通信信号を重畳させて通信信号の送受信を行う通信部と、
前記入力回路と前記通信部との間に介装された低域通過フィルタと
を備えることを特徴とする通信装置。 - 複数の抵抗を有し、抵抗値を調整可能な抵抗部と、
該抵抗部の電圧を変化させるため、該抵抗部の抵抗値を調整する調整部と
を備えることを特徴とする請求項9に記載の通信装置。
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JP2013524004A JP5876483B2 (ja) | 2011-07-13 | 2012-07-13 | 通信システム及び通信装置 |
CN201280033956.0A CN103650360B (zh) | 2011-07-13 | 2012-07-13 | 通信系统和通信装置 |
US14/232,218 US9735832B2 (en) | 2011-07-13 | 2012-07-13 | Communication system and communication device |
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US9577709B2 (en) | 2011-07-13 | 2017-02-21 | Sumitomo Electric Industries, Ltd. | Communication system and communication device |
US9735832B2 (en) | 2011-07-13 | 2017-08-15 | Sumitomo Electric Industries, Ltd. | Communication system and communication device |
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US9437381B2 (en) | 2013-03-14 | 2016-09-06 | Tyco Electronics Corporation | Electric vehicle support equipment having a smart plug with a relay control circuit |
CN105981255A (zh) * | 2014-02-12 | 2016-09-28 | 丰田自动车株式会社 | 电力授受控制装置 |
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EP3107178A4 (en) * | 2014-02-12 | 2017-05-10 | Toyota Jidosha Kabushiki Kaisha | Power-transfer control device |
CN105981255B (zh) * | 2014-02-12 | 2018-12-21 | 丰田自动车株式会社 | 电力授受控制装置 |
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Also Published As
Publication number | Publication date |
---|---|
US20140292069A1 (en) | 2014-10-02 |
JPWO2013008921A1 (ja) | 2015-02-23 |
CN103650360B (zh) | 2016-09-28 |
US9735832B2 (en) | 2017-08-15 |
CN103650360A (zh) | 2014-03-19 |
EP2733861A1 (en) | 2014-05-21 |
EP2733861A4 (en) | 2016-07-13 |
JP5876483B2 (ja) | 2016-03-02 |
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