WO2011125215A1 - 通信装置、通信システムおよび車両 - Google Patents
通信装置、通信システムおよび車両 Download PDFInfo
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- WO2011125215A1 WO2011125215A1 PCT/JP2010/056417 JP2010056417W WO2011125215A1 WO 2011125215 A1 WO2011125215 A1 WO 2011125215A1 JP 2010056417 W JP2010056417 W JP 2010056417W WO 2011125215 A1 WO2011125215 A1 WO 2011125215A1
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- vehicle
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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
- 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
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
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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
- Patent Document 1 JP-A-2009-77535 is known as a prior art document disclosing charging a battery mounted on a vehicle from an external power source.
- Japanese Patent Laid-Open No. 2009-77535 describes that when a vehicle is charged, information related to charging is transmitted by a control pilot signal output from an oscillator built in a CCID (Charging Circuit Interrupt Device) provided in the charging cable. Has been. In this way, when charging a vehicle, it is considered to perform communication between the vehicle and an external device.
- CCID Charge Circuit Interrupt Device
- the object of the present invention is to enable communication when the vehicle acts on the external facility (for example, discharges electric power from the vehicle) in addition to the case where the vehicle acts (for example, charging) from the external facility.
- a communication device, a communication system, and a vehicle are provided.
- the resistance value of the second resistance circuit changes according to the second input signal.
- the communication device is provided with a second signal extraction node on a path connecting the first terminal and the first resistance circuit.
- the vehicle further includes a rectifier circuit connected between the second terminal and the second resistance circuit.
- the rectifier circuit allows a current to flow in a state in which a current flowing in a direction opposite to the forward direction of the rectifying element can flow from the second terminal to the rectifying element having a forward direction from the second terminal toward the second resistor circuit. Therefore, a switch element that conducts in response to the control signal is included.
- the second resistance circuit includes a first resistance element connected between the rectifying element and a node that supplies the reference potential, and a second resistor connected between the switch element and the node that supplies the reference potential. And a resistive element.
- the second resistance circuit includes a first resistance element connected between the rectifying element and a node that supplies the reference potential, and a second resistor connected between the switch element and the node that supplies the reference potential. And a resistive element.
- the present invention is a vehicle that communicates with a communication device.
- the communication device includes a signal generation unit that generates a signal including a signal potential based on a reference potential, a first terminal for communicating with the vehicle, and an output between the output of the signal generation unit and the first terminal. And a first resistance circuit whose resistance value changes in response to a first input signal.
- the vehicle includes a second terminal connected to the first terminal, and a second resistance circuit connected between the node to which the reference potential is applied and the second terminal.
- the vehicle is provided with a first signal extraction node on a path connecting the second terminal and the second resistance circuit.
- the resistance value of the second resistance circuit changes according to the second input signal.
- the communication device is provided with a second signal extraction node on a path connecting the first terminal and the first resistance circuit.
- FIG. 1 is a diagram for explaining an overall configuration of a communication system according to the present embodiment.
- the communication system includes a vehicle 10 and a connected facility 20.
- the vehicle 10 is a vehicle that travels using electric power, such as a hybrid vehicle, an electric vehicle, and a fuel cell vehicle.
- the vehicle 10 is configured to be able to receive electric power from an external connected facility 20 by charging, or to supply electric power to the connected facility 20 by discharging or generating electricity.
- the connected facility 20 includes a solar cell 24, a power conditioner 26 for controlling the solar cell 24, a household electrical load (such as lighting, an air conditioner, and a device connected to an outlet) 28, and an external power source 402 (commercial power).
- a system interconnection relay 22 for connecting to the system) and a home controller 30 are included.
- the home controller 30 controls the grid interconnection relay 22, the power conditioner 26, and the home electric load 28.
- the home controller 30 also functions as a communication device that communicates with the vehicle 10.
- the vehicle 10 includes a vehicle electrical load 180 such as a motor, a power storage device 150 that supplies power to the vehicle electrical load 180, and a power storage device 150 that is charged with power from an external power source 402 (commercial power system) or the solar cell 24.
- Power converter 160 and a vehicle control device 170 The power converter 160 is also used to discharge the power energy stored in the power storage device 150 to the power system.
- the vehicle control device 170 not only controls the vehicle electrical load 180 but also controls the power converter 160.
- the control device 170 can perform bidirectional communication with the home controller 30.
- the vehicle 10 further includes an engine and a generator if it is a hybrid vehicle, and further includes a fuel cell if it is a fuel cell vehicle.
- electric power can be continuously supplied to the outside for a long time if fuel is continuously supplied.
- FIG. 2 is a schematic diagram of a more specific example of the vehicle 10 constituting the communication system of the present embodiment.
- the motor driving device (vehicle electric load 180) is controlled by the ECU 170.
- the motor driving device (vehicle electric load 180) converts the accumulated power of the power storage device 150 into electric power for driving and controlling the motor generator 120.
- motor generator 120 is configured by a permanent magnet type three-phase synchronous motor
- the motor drive device (vehicle electric load 180) is configured by a three-phase inverter.
- the output torque of motor generator 120 is transmitted to wheels 130 through a power split mechanism, a speed reducer, etc. (not shown) to cause vehicle 10 to travel.
- the motor generator 120 can generate power by the rotational force of the wheels 130 during the regenerative braking operation of the vehicle 10. Then, the generated power can be used as charging power for power storage device 150 using a motor drive device (vehicle electric load 180).
- the charging cable 300 is connected by a power outlet 400 of an external power source 402 (for example, a system power network) and a plug 320 on the external power source side of the charging cable 300.
- an external power source 402 for example, a system power network
- vehicle inlet 270 provided on the body of vehicle 10 and charging connector 310 on the vehicle side of charging cable 300 are connected to charge vehicle 10 from external power supply 402.
- a grid interconnection relay 22 may be provided between the external power supply 402 and the vehicle power outlet 400.
- the CCID 330 includes a CCID relay 332 and a control pilot circuit 334.
- the CCID relay 332 is provided on a power line pair in the charging cable.
- the CCID relay 332 is on / off controlled by a control pilot circuit 334.
- the CCID relay 332 is turned off, the electric circuit is cut off in the charging cable.
- the CCID relay 332 is turned on, power can be supplied from the external power supply 402 to the vehicle 10.
- Control pilot circuit 334 outputs pilot signal CPLT to ECU 170 of the vehicle via charging connector 310 and vehicle inlet 270.
- the pilot signal CPLT is a signal for notifying the rated current of the charging cable from the control pilot circuit 334 to the ECU 170 of the vehicle.
- Pilot signal CPLT is also used as a signal for remotely operating CCID relay 332 from ECU 170 based on the potential of pilot signal CPLT operated by ECU 170.
- Control pilot circuit 334 controls CCID relay 332 on / off based on the potential change of pilot signal CPLT. That is, pilot signal CPLT is exchanged between ECU 170 and CCID 330.
- this pilot signal CPLT is also used for communication when power is supplied from the vehicle to the connected facility.
- FIG. 3 is a diagram for explaining the hardware related to communication between the vehicle and the CCID shown in FIG. 2 in more detail.
- vehicle inlet 270 includes terminals TP2 and TPG2 connected to power lines ACL1 and ACL2, respectively, terminal TS2 connected to control pilot signal line L1, and terminal TG2 connected to ground line L2. And a terminal TC2 connected to the signal line L3.
- the charging connector 310 of the charging cable includes terminals TP1, TPG1, TS1, TG1, and TC1 for connecting to the terminals TP2, TPG2, TS2, TG2, and TC2, respectively.
- the CCID 330 includes an electromagnetic coil 606, a leakage detector 608, a CCID control unit 610, a voltage sensor 650, and a current sensor 660 in addition to the CCID relay 332 and the control pilot circuit 334.
- Control pilot circuit 334 includes an oscillation circuit 602, a resistance circuit RB, and a voltage sensor 604.
- the terminal TS2 is connected to the node N2 of the CCID 330.
- Voltage sensor 604 detects the voltage at node N2.
- the resistance circuit RB is configured such that the resistance value is variable according to the signal SB.
- a resistance circuit RB is provided between the oscillation circuit 602 and the node N2.
- the CCID control unit 610 includes a CPU (Central Processing Unit), a storage device, an input / output buffer, and a display. CCID control unit 610 performs input / output of signals to / from each sensor and control pilot circuit 334, and controls and manages the charging operation of charging cable 300.
- CPU Central Processing Unit
- the potential of the pilot signal CPLT can also be operated from the ECU 170 on the vehicle side, as will be described later.
- the duty cycle is set based on the rated current that can be supplied from the external power source 402 to the vehicle via the charging cable.
- ECU 170 includes a resistance circuit RA, a voltage sensor 504, an input buffer 506, and a CPU 508.
- Resistor circuit RA is connected between control pilot signal line L1 and ground line L2.
- the resistance circuit 502 is configured such that the resistance value can be changed according to the control signal SA from the CPU 508.
- Resistance circuit RA is a circuit for operating the voltage level of pilot signal CPLT from the vehicle side.
- Voltage sensor 504 detects the voltage of node N1 on control pilot signal line L1, and outputs the detection result to CPU 508. Instead of the voltage sensor 504, an A / D converter built in the CPU may be used.
- the ground line L2 is connected to the ground node 512 of the ECU 170.
- Leakage detector 608 is provided on the power line pair of the charging cable inside CCID 330 and detects the presence or absence of a leak. Specifically, leakage detector 608 detects an equilibrium state of currents flowing in opposite directions to the power line pair, and detects the occurrence of leakage when the equilibrium state breaks down. Although not particularly illustrated, when leakage is detected by leakage detector 608, power supply to electromagnetic coil 606 is cut off and CCID relay 332 is turned off.
- the voltage sensor 650 detects that the plug 320 on the external power supply side of the charging cable 300 is inserted into the power outlet 400 and connected to the external power supply 402, and notifies the CCID control unit 610.
- the current sensor 660 detects that the vehicle 10 has actually been charged from the external power source 402 by detecting the charging current flowing through the power line, and notifies the CCID control unit 610 of the fact.
- CPU 508 determines connection between external power supply 402 and vehicle 10 based on cable connection signal PISW and pilot signal CPLT. Specifically, CPU 508 detects connection between vehicle inlet 270 and charging connector 310 based on cable connection signal PISW received from input buffer 506, and based on the presence or absence of voltage detection of pilot signal CPLT received from voltage sensor 504. The connection between the plug 320 and the power outlet 400 is detected.
- FIG. 4 is a flowchart for explaining control for executing communication in the configuration of FIG.
- a flowchart of control executed by the charging device or the load device is described on the left side, and a flowchart of control executed by the vehicle is shown on the right side.
- step S1 when the vehicle and the charging device or the load device are connected by the power cable, the control of the charging device or the load device is started in step S1, and the control of the vehicle is started in step S10.
- step S13 it is determined whether or not the detection condition of the divided potential is satisfied. For example, it is determined that the charging device or the load device completes step S2 within a predetermined time after the cable is connected, and when the predetermined time has passed and the divided voltage potential is detected stably, the divided voltage potential It suffices that the detection condition is satisfied.
- step S12 If the detection condition is not satisfied in step S13, the process of step S12 is executed again. If the detection condition is satisfied in step S13, the process proceeds to step S14.
- step S14 processing for identifying the operation mode of the connection device is performed.
- the resistance circuit RB is set to a different value depending on whether the connected device charges the vehicle or requests to receive power from the vehicle. Therefore, a correspondence table of resistance values (or corresponding divided potentials) of the resistance circuit RB and operation modes is prepared in the CPU 508, and the operation modes are identified by comparing the resistance values or divided potentials with these. .
- the charging device or the load device reads the resistance value of the resistance circuit RA in step S3.
- This reading is performed by reading a value obtained by dividing a predetermined potential of the signal of the oscillation circuit 602 by the resistance circuit RA and the resistance circuit RB with the voltage sensor 604. If the predetermined potential of the signal of the oscillation circuit 602 is set to a predetermined value and the resistance value of the resistance circuit RA determined in step S2 is known, the CPU 508 determines what resistance value the resistance circuit RB is set to. Can recognize.
- preparation completion may be recognized by detecting the corresponding change in the divided potential without calculating the resistance value itself.
- step S4 it is determined whether or not the detection condition of the divided potential is satisfied. For example, it is determined that the vehicle completes steps S12 to S16 within a predetermined time after step S2 is completed, and when the predetermined time has elapsed and the divided potential is detected stably, the voltage dividing is performed. It suffices that the position detection condition is satisfied.
- step S15 Although it described as electric power generation in step S15, S17, in the case of an electric vehicle, it becomes discharge from an electrical storage apparatus.
- Switch SW1 and resistor R2 are connected in series.
- the switch SW1 and the resistor R2 connected in series are connected in parallel with the resistor R1.
- the switch SW2 and the resistor R3 are connected in series.
- the switch SW2 and the resistor R3 connected in series are connected in parallel with the resistor R1.
- the switches SW1 and SW2 are switched ON / OFF according to the control signal SB.
- FIG. 5 shows an example of the configuration of the resistor circuit RB.
- the resistor circuit RB may be any circuit as long as the resistance value can be changed according to the control signal SB, and various other configurations are conceivable.
- the resistor R1 may be provided with a switch to completely switch the resistor.
- the resistance circuit RB exhibits a resistance value of 5.4 k ⁇ when both the switches SW1 and SW2 are turned off.
- the resistance circuit RB exhibits a resistance value of 1.8 k ⁇ when the switch SW1 is turned on and the SW2 is turned off.
- the resistance circuit RB exhibits a resistance value of about 1 k ⁇ when both the switches SW1 and SW2 are turned on.
- the resistance through which the current flows when the switch SW4 is closed is the resistance R6, and therefore the resistance value of the resistance circuit RA is a fixed value of 1.8 k ⁇ . Since the resistors through which current flows when the oscillation circuit 602 outputs a positive voltage are R4 and R5, the resistor circuit RA has two resistance values depending on the state of the switch SW3. That is, the resistance value of the resistance circuit RA is 2.74 k ⁇ when the switch SW3 is in the off state, and 0.88 k ⁇ when the switch SW3 is in the on state.
- the node N2 changes the resistance values of the resistance circuits RA and RB so that the positive voltage of the oscillation circuit 602 is 12V. , 4.5V, 6.0V, 7.5V, 9.0V.
- FIG. 6 is a diagram for explaining a modification of the circuit of FIG. Referring to FIG. 6, in the modification, a selection circuit DA is used instead of the rectifier circuit D of FIG.
- the selection circuit DA includes a transistor TR1 instead of the diode D1 of FIG. 5, and includes a transistor TR2 instead of the diode D2 and the switch SW4 of FIG.
- FIG. 7 is a flowchart for explaining an example of control using the configuration shown in FIG.
- a flowchart of control executed by the infrastructure including the charging device or the load device is described on the left side
- a flowchart of control executed by the vehicle is described on the right side.
- step S51 and step S81 the process is started in step S51 and step S81 when the infrastructure and the vehicle are connected by a cable.
- step S82 the switches SW3 and SW4 are both turned off in the vehicle, and the resistance circuit RA is set to an initial value (eg, 2.74 k ⁇ ).
- the infrastructure side determines whether or not the vehicle is charged in step S52.
- the charging mode or the power generation mode can be set by a person who has connected the power cable to the vehicle with an input switch or the like. May be. In a charging stand or the like that does not have an electric load, the operation mode may be fixed to the charging mode, and the resistance circuit RB may have a fixed resistance value.
- step S52 If the vehicle is charged in step S52, that is, if the charging mode is selected, the process proceeds to step S53.
- step S53 the switches SW1 and SW2 are both turned on, so that the resistance value of the resistance circuit RB is set to a value corresponding to the charging mode (for example, about 1 k ⁇ ).
- CCID control unit 610 causes plug 320 of charging cable 300 to be connected to a power outlet. 400 can be detected. Further, by detecting that the potential of pilot signal CPLT changes from a prescribed potential V1 (for example, 12V) to V2 (for example, 9V), CCID control unit 610 causes charging connector 310 of charging cable 300 to be connected to vehicle 10. A connection to the vehicle inlet 270 can be detected.
- V1 for example, 12V
- V2 for example, 9V
- the ECU 170 of the vehicle 10 can detect the rated current that can be supplied from the external power supply 402 to the vehicle via the charging cable 300 based on the duty of the pilot signal CPLT received via the control pilot signal line L1.
- step S54 the control pilot circuit 334 supplies a current to the electromagnetic coil 606.
- the electromagnetic coil 606 generates an electromagnetic force and turns on the CCID relay 332.
- pilot signal CPLT shown in FIG. 8 is standardized by SAE Standards, so that different manufacturers and automobiles may have the same potential change when charging. To be controlled. Therefore, it is possible to share the charging cable between different manufacturers and automobiles.
- step S61 when it is determined that the operation mode is the self-sustaining power generation mode, the process proceeds to step S62, the grid interconnection relay 22 is controlled to be turned off, and the connected facility is disconnected from the grid power network.
- step S63 the switch SW1 is set to the on state, and the switch SW2 is set to the off state.
- FIG. 9 is a waveform diagram for explaining changes in the signal CPLT during the power generation operation. 7 and 9, when the cable connector is connected to the vehicle inlet at time t1 and the setting of infrastructure resistance circuit RB is completed, the voltage of signal CPLT decreases from + 12V to + XV.
- XV 7.5V in the self-sustaining power generation mode
- XV 4.5V in the grid power generation mode.
- step S63 the voltage of the signal CPLT changes to 7.5V at time t1. This voltage change is detected in step S86, and the process in the vehicle proceeds to step S87.
- step S87 it is determined whether the vehicle can generate power (or can be discharged from the power storage device). For example, in the case of a hybrid vehicle or a fuel cell vehicle, it is determined that power generation is impossible if the remaining amount of fuel is less than the required amount. In the case of an electric vehicle, it is determined that discharging is impossible if the state of charge of the power storage device is lower than a required value. Other than that, it is judged that power generation is impossible if it has a schedule management function and it is known that it is close to departure or it is inappropriate to supply power from the vehicle to the connected facility. In step S94, the process ends.
- step S87 if it is appropriate to supply power from the vehicle to the connected facility, the process proceeds to step S88.
- step S88 the switch SW4 is changed from the off state to the on state in order to notify that the vehicle is ready for power generation.
- step S64 the voltage sensor 604 in FIG. 5 determines whether or not the negative voltage of the signal CPLT has become ⁇ 6V. If -6V is not detected in step S64, it waits for a while and tries to detect it again. If -6V is detected in step S64, the infrastructure has detected that the vehicle is ready for power generation, and so in step S65, self-sustained power reception is started. Then, in the vehicle, independent power generation is started in step S89.
- step S61 when the operation mode desired to be requested from the infrastructure to the vehicle is not the self-sustaining power generation mode, the process proceeds to step S66.
- step S66 it is determined whether to perform grid-connected power generation, that is, whether the operation mode desired to be requested from the infrastructure to the vehicle is the grid-connected power generation mode. If the operation mode is not the grid power generation mode in step S66, the process ends in step S71.
- step S66 If it is determined in step S66 that the operation mode is the grid power generation mode, the process proceeds to step S67.
- step S67 the grid interconnection relay 22 is controlled to be in an on state, and the grid power network and the connected facility are connected.
- a device having a function like the power conditioner of FIG. 1 is mounted on the vehicle in order to perform grid-connected power generation.
- step S68 both the switches SW1 and SW2 are set to the off state.
- the voltage of the signal CPLT changes to 4.5V at time t1. Accordingly, the process proceeds from step S86 to step S90 in the vehicle, and when this voltage change is detected in step S90, the process in the vehicle proceeds to step S91.
- step S91 it is determined whether the vehicle can generate power (or can be discharged from the power storage device). For example, in the case of a hybrid vehicle or a fuel cell vehicle, it is determined that power generation is impossible if the remaining amount of fuel is less than the required amount. In the case of an electric vehicle, it is determined that discharging is impossible if the state of charge of the power storage device is lower than a required value.
- step S91 if it is appropriate to supply power from the vehicle to the connected facility, the process proceeds to step S92.
- step S92 the switch SW4 is changed from the off state to the on state in order to notify that the vehicle is ready for power generation.
- step S69 the voltage sensor 604 in FIG. 5 determines whether or not the negative voltage of the signal CPLT has become ⁇ 4V. If -4V is not detected in step S64, it waits for a while and tries to detect it again. If -4V is detected in step S69, the infrastructure has detected that the vehicle is ready for power generation, and in step S70, grid-connected power reception is started. In the vehicle, grid interconnection power generation is started in step S93.
- the communication system disclosed in the present embodiment includes a vehicle 10 and a communication device (connected facility 20) that communicates with the vehicle.
- the communication device (connected facility 20) includes a signal generation unit (oscillation circuit 602) that generates a signal including a signal potential based on a reference potential, a first terminal TS1 for communicating with the vehicle 10, and a signal A first resistance circuit RB that is connected between the output of the generation unit (oscillation circuit 602) and the first terminal TS1 and whose resistance value changes according to the first input signal SB is provided.
- the resistance value of the second resistance circuit RA changes in accordance with the second input signal SA, and the communication device has a path on the path connecting the first terminal TS1 and the first resistance circuit RB.
- a second signal extraction node N2 is provided.
- the second resistance circuit RA includes first resistors R4 and R5 connected between the rectifying element (diode D1) and a ground node for providing a reference potential, and a switch SW4. And a second resistor R6 connected between a node for supplying a reference potential.
- First and second resistance circuits RB and RA are configured so that a plurality of potentials including a second potential between 7V and 8V (for example, 7.5V) can be switched and output.
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Abstract
Description
図1を参照して、通信システムは、車両10と被接続施設20とを含む。車両10は、たとえば、ハイブリッド自動車、電気自動車、燃料電池自動車などのように、電力を用いて走行する自動車である。車両10は、充電により外部の被接続施設20から電力を受け取ったり、放電または発電を行なって被接続施設20に電力の供給を行なったりすることが可能に構成されている。
図5を参照して、抵抗回路RBは、発振回路602の出力とノードN2との間に接続された抵抗R1と、選択的に発振回路602の出力とノードN2との間に接続される抵抗R2,R3と、スイッチSW1,SW2とを含む。
図6を参照して、変形例では図5の整流回路Dに代えて選択回路DAを使用する。選択回路DAは、図5のダイオードD1に代えてトランジスタTR1を含み、図5のダイオードD2およびスイッチSW4に代えてトランジスタTR2を含む。
図7、図8を参照して、ステップS82およびステップS53が実行された場合図8の時刻t1~t2に示すようにスイッチSW1,SW2はオン状態、スイッチSW3,SW4はオフ状態に設定されている。そして車両インレットにケーブルのコネクタが接続されると、時刻t1に示すように信号CPLTが12Vから9Vに変化する。
図7、図9を参照して、時刻t1においてケーブルコネクタが車両インレットに接続され、インフラの抵抗回路RBの設定が完了すると、信号CPLTの電圧は+12Vから+XVに低下する。ここで、自立発電モードではXV=7.5Vであり、連系発電モードではXV=4.5Vである。
Claims (15)
- 車両(10)との通信を行なう通信装置であって、
基準電位を基準とした信号電位を含む信号を発生する信号発生部(602)と、
前記車両(10)と通信を行なうための第1の端子(TS1)と、
前記信号発生部(602)の出力と前記第1の端子(TS1)との間に接続され、第1の入力信号(SB)に応じて抵抗値が変化する第1の抵抗回路(RB)とを備える、通信装置。 - 前記車両(10)は、
前記第1の端子(TS1)と接続される第2の端子(TS2)と、
前記基準電位が与えられるノード(512)と前記第2の端子(TS2)との間に接続される第2の抵抗回路(RA)とを含み、
前記車両(10)には前記第2の端子(TS2)と前記第2の抵抗回路(RA)とを結ぶ経路上に第1の信号取出ノード(N1)が設けられる、請求の範囲第1項に記載の通信装置。 - 前記第2の抵抗回路(RA)は、第2の入力信号(SA)に応じて抵抗値が変化し、
前記通信装置には、前記第1の端子(TS1)と前記第1の抵抗回路(RB)とを結ぶ経路上に第2の信号取出ノード(N2)が設けられる、請求の範囲第2項に記載の通信装置。 - 前記車両(10)は、
前記第2の端子(TS2)と前記第2の抵抗回路(RA)との間に接続される整流回路(D)をさらに含み、
前記整流回路(D)は、
前記第2の端子(TS2)から前記第2の抵抗回路(RA)に向かう向きを順方向とする整流素子(D1)と、
前記第2の端子(TS2)から前記整流素子(D1)の順方向とは逆方向の電流を流し得る状態で電流を流すために制御信号(SC)に応じて導通するスイッチ素子(SW4)とを含む、請求の範囲第2項に記載の通信装置。 - 前記第2の抵抗回路(RA)は、
前記整流素子(D1)と前記基準電位を与えるノードとの間に接続される第1の抵抗素子(R4,R5)と、
前記スイッチ素子(SW4)と前記基準電位を与えるノードとの間に接続される第2の抵抗素子(R6)とを含む、請求の範囲第4項に記載の通信装置。 - 前記基準電位を0Vとするときに前記信号電位が12Vである場合には、前記第1または第2の信号取出ノードから、4V~5Vの間の第1の電位と7V~8Vの間の第2の電位とを含む複数の電位を切替えて出力可能であるように、前記第1および第2の抵抗回路が構成される、請求の範囲第3項に記載の通信装置。
- 通信システムであって、
車両(10)と、
前記車両との通信を行なう通信装置(20)とを備え、
前記通信装置(20)は、
基準電位を基準とした信号電位を含む信号を発生する信号発生部(602)と、
前記車両と通信を行なうための第1の端子(TS1)と、
前記信号発生部(602)の出力と前記第1の端子(TS1)との間に接続され、第1の入力信号(SB)に応じて抵抗値が変化する第1の抵抗回路(RB)とを備える、通信システム。 - 前記車両(10)は、
前記第1の端子(TS1)と接続される第2の端子(TS2)と、
前記基準電位が与えられるノード(512)と前記第2の端子(TS2)との間に接続される第2の抵抗回路(RA)とを含み、
前記車両(10)には前記第2の端子(TS2)と前記第2の抵抗回路(RA)とを結ぶ経路上に第1の信号取出ノード(N1)が設けられる、請求の範囲第7項に記載の通信システム。 - 前記第2の抵抗回路(RA)は、第2の入力信号(SA)に応じて抵抗値が変化し、
前記通信装置には、前記第1の端子(TS1)と前記第1の抵抗回路(RB)とを結ぶ経路上に第2の信号取出ノード(N2)が設けられる、請求の範囲第8項に記載の通信システム。 - 前記車両(10)は、
前記第2の端子(TS2)と前記第2の抵抗回路(RA)との間に接続される整流回路(D)をさらに含み、
前記整流回路(D)は、
前記第2の端子(TS2)から前記第2の抵抗回路(RA)に向かう向きを順方向とする整流素子(D1)と、
前記第2の端子(TS2)から前記整流素子(D1)の順方向とは逆方向の電流を流し得る状態で電流を流すために制御信号(SC)に応じて導通するスイッチ素子(SW4)とを含む、請求の範囲第8項に記載の通信システム。 - 前記第2の抵抗回路(RA)は、
前記整流素子(D1)と前記基準電位を与えるノードとの間に接続される第1の抵抗素子(R4,R5)と、
前記スイッチ素子(SW4)と前記基準電位を与えるノードとの間に接続される第2の抵抗素子(R6)とを含む、請求の範囲第10項に記載の通信システム。 - 前記基準電位を0Vとするときに前記信号電位が12Vである場合には、前記第1または第2の信号取出ノードから、4V~5Vの間の第1の電位と7V~8Vの間の第2の電位とを含む複数の電位を切替えて出力可能であるように、前記第1および第2の抵抗回路が構成される、請求の範囲第9項に記載の通信システム。
- 通信装置と通信を行なう車両であって、
前記通信装置(20)は、
基準電位を基準とした信号電位を含む信号を発生する信号発生部(602)と、
前記車両と通信を行なうための第1の端子と、
前記信号発生部(602)の出力と前記第1の端子(TS1)との間に接続され、第1の入力信号(SB)に応じて抵抗値が変化する第1の抵抗回路(RB)とを含み、
前記車両(10)は、
前記第1の端子(TS1)と接続される第2の端子(TS2)と、
前記基準電位が与えられるノード(512)と前記第2の端子(TS2)との間に接続される第2の抵抗回路(RA)とを備え、
前記車両(10)には前記第2の端子(TS2)と前記第2の抵抗回路(RA)とを結ぶ経路上に第1の信号取出ノード(N1)が設けられる、車両。 - 前記第2の抵抗回路(RA)は、第2の入力信号(SA)に応じて抵抗値が変化し、
前記通信装置には、前記第1の端子(TS1)と前記第1の抵抗回路(RB)とを結ぶ経路上に第2の信号取出ノード(N2)が設けられる、請求の範囲第13項に記載の車両。 - 前記基準電位を0Vとするときに前記信号電位が12Vである場合には、前記第1または第2の信号取出ノードから、4V~5Vの間の第1の電位と7V~8Vの間の第2の電位とを含む複数の電位を切替えて出力可能であるように、前記第1および第2の抵抗回路が構成される、請求の範囲第14項に記載の車両。
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- 2010-04-09 CN CN201080066087.2A patent/CN102823209B/zh not_active Expired - Fee Related
- 2010-04-09 JP JP2012509256A patent/JP5413504B2/ja not_active Expired - Fee Related
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JP2013099078A (ja) * | 2011-10-31 | 2013-05-20 | Toyota Motor Corp | 外部負荷に放電(給電)可能な蓄電部を備えた車両、同車両と電力ケーブルとを含む放電システム、同蓄電部の放電制御方法、及び、同放電システムに用いられる車両外部の装置。 |
US9466999B2 (en) | 2011-10-31 | 2016-10-11 | Toyota Jidosha Kabushiki Kaisha | Vehicle with an electric storage section capable of discharging (supplying) an electric power to an external electric load, discharge system including the vehicle and a power cable, method for discharging the electric storage section, and equipment external to the vehicle used in the discharge system |
CN105244969A (zh) * | 2015-11-04 | 2016-01-13 | 江苏阿波罗太阳能汽车股份有限公司 | 一种运用于电动汽车的云能量管理系统 |
Also Published As
Publication number | Publication date |
---|---|
US20130015700A1 (en) | 2013-01-17 |
US8772961B2 (en) | 2014-07-08 |
JP5413504B2 (ja) | 2014-02-12 |
EP2557746A4 (en) | 2013-09-25 |
EP2557746B1 (en) | 2020-05-06 |
EP2557746A1 (en) | 2013-02-13 |
CN102823209A (zh) | 2012-12-12 |
JPWO2011125215A1 (ja) | 2013-07-08 |
CN102823209B (zh) | 2015-06-10 |
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