WO2012042902A1 - 電気自動車の電力供給システム、このシステムに用いる電気自動車および給電装置 - Google Patents
電気自動車の電力供給システム、このシステムに用いる電気自動車および給電装置 Download PDFInfo
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- WO2012042902A1 WO2012042902A1 PCT/JP2011/005543 JP2011005543W WO2012042902A1 WO 2012042902 A1 WO2012042902 A1 WO 2012042902A1 JP 2011005543 W JP2011005543 W JP 2011005543W WO 2012042902 A1 WO2012042902 A1 WO 2012042902A1
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- Prior art keywords
- power
- power supply
- unit
- vehicle
- side communication
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- 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 an electric vehicle power supply system for supplying electric power from a power supply device to an electric vehicle in a non-contact manner, and an electric vehicle and a power supply device used in this system.
- an electric vehicle power supply system an electric vehicle and an electric vehicle and a power supply device that supplies electric power to the electric vehicle in a non-contact manner are known.
- An object of the present invention is to provide a power supply system capable of accurately associating an electric vehicle supplied with power by a power supply device with an electric vehicle communicating with the power supply device.
- An electric vehicle power supply system is an electric vehicle power supply system that supplies electric power from a power supply device to an electric vehicle in a contactless manner, and the electric vehicle communicates wirelessly with the power supply device.
- a power supply apparatus is a power supply apparatus that supplies electric power to an electric vehicle in a non-contact manner, and communicates wirelessly with the vehicle detection unit that detects that the electric vehicle has entered a predetermined region.
- a power supply side communication unit that performs power supply to the electric vehicle in a non-contact manner, and a power supply side control unit that controls the power supply unit.
- the power supply unit is controlled to supply power at a first power value, and the power supply side communication unit is connected to the power supply unit.
- a request signal is received from the electric vehicle while power is being supplied at a power value of 1, power is supplied to the power supply unit at a second power value that is greater than the first power value. Take the configuration to control.
- the vehicle-side communication unit starts up with the first power value supplied by the power supply unit of the power supply device, and transmits a request signal to the power supply device, whereby the power supply unit of the power supply device supplies power.
- FIG. 1 is a diagram for explaining the configuration of an electric vehicle power supply system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing the configuration of the electric vehicle power supply system.
- a solid line arrow represents a signal flow
- a broken line arrow represents a power flow.
- an electric vehicle power supply system includes a power supply device 2 installed in a road and an electric vehicle 3 that receives power from the power supply device 2. . More specifically, the electric vehicle 3 receives and stores the power supplied from the power supply device 2 by the power receiving device 4.
- the electric vehicle 3 is a vehicle that obtains a propulsive force by electricity, and includes an electric motor that generates a driving force transmitted to the tire by electric power. This electric motor is driven by the electric power of the power storage unit 42 (see FIG. 2). Further, the electric power stored in the power storage unit 42 is supplied from the outside of the electric vehicle 3.
- the electric vehicle 3 of the present invention can be powered by an electric vehicle (EV) propelled only by an electric motor and by an engine and an electric motor, and can be supplied with electric power from a power source outside the electric vehicle 3 to the power storage unit 42.
- Plug-in hybrid vehicles Plug-in Hybrid Vehicle are included.
- the power feeding device 2 includes a power feeding unit 21 that supplies power to the power receiving unit 41 of the electric vehicle 3 in a non-contact manner, a vehicle detection unit 22 that detects whether the electric vehicle 3 has entered a range on a predetermined road, The power supply side communication unit 23 that communicates with the electric vehicle 3 and the power supply side control unit 24 that controls each unit of the power supply apparatus 2 are provided.
- FIG. 1 shows a case where the electric vehicle 3a is about to enter the chargeable region B and the electric vehicle 3b is stopped adjacent to the electric vehicle 3a.
- the power feeding device 2 When the electric vehicle 3a enters the chargeable area B, the power feeding device 2 establishes communication with the electric vehicle 3a and supplies power to the electric vehicle 3a. At this time, the power feeding device 2 is required to perform control so as not to establish communication with the adjacent electric vehicle 3b.
- the electric power feeder 2 is demonstrated in detail.
- the power supply unit 21 generates electric power and supplies the electric vehicle 3 in a non-contact manner. It is preferable that the electric power feeding part 21 is arrange
- the power feeding unit 21 includes a power feeding coil and a coil driving circuit that drives the power feeding coil.
- the coil driving circuit drives the power feeding coil by applying a pulse having a predetermined frequency to the power feeding coil.
- the predetermined frequency (chopper frequency) of this pulse is controlled by the power supply side control unit 24.
- a pulse as an excitation current, a magnetic field proportional to the current is generated in the feeding coil.
- An electromotive force is generated in the power receiving coil of the power receiving unit 41 by this magnetic field, and power is supplied from the power feeding unit 21 to the power receiving unit 41.
- the electric power supplied by the power supply unit 21 when the electric vehicle 3 enters the chargeable region B is set to a first power value Pa, and power is supplied after communication between the power supply device 2 and the electric vehicle 3 is established.
- the magnitude of the power supplied by the unit 21 is defined as a second power value Pb.
- the first power value Pa is a power that does not affect the human body.
- “the power level that does not affect the human body” refers to a weak power level that does not affect even if there is an animal or the like in the vicinity of the power feeding unit 21.
- the second power value Pb is larger than the first power value Pa, and is a size that allows the power receiving unit 41 to store power in the power storage unit 42.
- the first power value Pa is about several w to several tens of w
- the second power value Pb is about several Kw to several tens of Kw.
- the vehicle detection unit 22 is a sensor for determining whether or not the electric vehicle 3 has entered the chargeable region B.
- the vehicle detection unit 22 transmits a determination result as to whether or not the electric vehicle 3 has entered the chargeable region B to the power supply side control unit 24.
- the power supply side communication part 23 communicates with the vehicle side communication part 43 of the electric vehicle 3 mentioned later by radio
- the power supply side communication unit 23 is controlled by the power supply side control unit 24.
- the power supply side communication unit 23 includes an antenna that receives radio waves and a modem unit that modulates or demodulates the received signal.
- the power supply side communication unit 23 is constantly supplied with power.
- the power supply side communication unit 23 is preferably disposed in the vicinity of the road surface of the road.
- the power supply side control unit 24 sets the power supplied by the power supply unit 21 to the first power value. Set to Pa. Subsequently, the power feeding side control unit 24 causes the power feeding side communication unit 23 to transmit and receive data in order to establish communication between the power feeding side communication unit 23 and the vehicle side communication unit 43. The magnitude of the power supplied by the unit 21 is set to the second power value Pb. Details of the control performed by the power supply side control unit 24 will be described later.
- the power reception device 4 includes a power reception unit 41 that receives power supplied from the power supply unit 21 of the electric vehicle 3, a power storage unit 42 that stores the power received by the power reception unit 41, and a vehicle side that communicates with the power supply side communication unit 23.
- the communication part 43 and the vehicle side control part 44 which controls the power receiving part 41 and the vehicle side communication part 43 are provided.
- each part of the power receiving device 4 will be described in detail.
- the surface of the receiving coil is covered with synthetic resin or the like.
- the power receiving coil is, for example, a coil formed in the same plane, and can receive power from the power feeding unit 21 by electromagnetic induction.
- the electric power received by electromagnetic induction is input to the rectifier circuit, converted into direct current, and output to the power storage unit 42.
- the power storage unit 42 stores the power received by the power receiving unit 41.
- a secondary battery with a high energy density for example, a nickel metal hydride rechargeable battery or a lithium ion rechargeable battery
- the electric power stored in the power storage unit 42 becomes a power source for driving the tire of the electric vehicle 3 and is used for operating the electric motor.
- the electric power stored in the power storage unit 42 operates, for example, accessories such as a car navigation device and car audio, and electric components such as a power window, ETC (registered trademark), and ECU (Electronic Control Unit). It is also used as power for
- the vehicle side communication unit 43 communicates with the power supply side communication unit 23 of the power supply device 2 wirelessly.
- the vehicle side communication unit 43 is controlled by the vehicle side control unit 44.
- the vehicle-side communication unit 43 includes an antenna that receives radio waves and a modulation / demodulation unit that modulates or demodulates a received signal.
- the vehicle-side communication unit 43 is preferably disposed on the bottom side facing the road of the electric vehicle 3. Therefore, the antenna is preferably a planar antenna that does not protrude from the bottom surface of the electric vehicle 3.
- the communication method is not limited, but a communication method that performs short-distance communication with a communicable distance of about several meters is desirable.
- the vehicle-side communication unit 43 is activated based on the power received by the power reception unit 41. Specifically, the vehicle-side communication unit 43 is activated when power that is equal to or higher than the first power value Pa is supplied from the power supply unit 21 to the power reception unit 41, and operates using the power output from the power reception unit 41.
- the vehicle side communication unit 43 After activation, the vehicle side communication unit 43 performs processing for establishing communication with the power supply side communication unit 23.
- the vehicle-side communication unit 43 operates with the power received by the power receiving unit 41 until communication is established, and operates with the power of the power storage unit 42 after communication is established.
- the vehicle side communication part 43 will be in a communication waiting state after communication is established.
- the vehicle-side communication unit 43 operates with the power received by the power receiving unit 41 until communication is established, so that communication can be started without bringing out the power of the power storage unit 42.
- the vehicle side control unit 44 and the power supply side control unit 24 are constituted by a CPU, a ROM, a RAM, and the like.
- the CPU executes various programs, outputs control signals, and the like by executing programs stored in the ROM.
- the CPU uses the RAM as a work area during execution of the program.
- FIG. 3 is a diagram for explaining the operation of the power feeding apparatus.
- FIG. 4 is a diagram for explaining the operation of the power receiving apparatus.
- FIG. 5 is a diagram for explaining communication establishment processing.
- the power feeding unit 21 does not supply power.
- the power supply side control unit 24 determines whether or not the electric vehicle 3 has entered the chargeable region B based on the detection result of the vehicle detection unit 22 (S10). When the electric vehicle 3 is not in the chargeable region B (NO in S10), the power supply side control unit 24 executes S10 again.
- the power supply side control unit 24 controls the power supply unit 21 so that the power supply unit 21 supplies power at the first power value Pa (S11). ).
- the power supply side communication unit 23 performs processing for establishing communication with the vehicle side communication unit 43 of the electric vehicle 3 entering the chargeable region B (S12). Details of this process will be described later.
- the power supply side control unit 24 controls the power supply unit 21 so that the power supply unit 21 supplies power at the second power value Pb (S13).
- the power feeding unit 21 reaches the second power value Pb in S13, the electric vehicle 3 starts to receive power.
- the power supply side control unit 24 determines whether or not the electric vehicle 3 has left the chargeable region B (S14). When leaving the chargeable region B (YES in S14), the power supply side control unit 24 causes the power supply unit 21 to stop power supply (S16). This process is performed regardless of whether or not the electric vehicle 3 has completed charging. This is because even if the electric vehicle 3 is being charged, if the electric vehicle 3 moves due to some factor, the power feeding unit 21 that is fed with the second power value Pb is exposed, which is dangerous.
- the power supply side control unit 24 determines whether or not the power supply side communication unit 23 has received a power supply stop signal from the vehicle side communication unit 43. (S15). When the power supply stop signal is received (YES in S15), the power supply side control unit 24 causes the power supply unit 21 to stop power supply (S16). On the other hand, when the power stop signal is not received (NO in S15), the power supply side control unit 24 returns the process to S14. When S16 ends, the state is the same as the start of FIG.
- the vehicle-side control unit 44 makes preparations for the power receiving unit 41 to receive the first power value Pa (S20).
- This preparation is processing for enabling the power receiving unit 41 to receive power.
- This preparation is started, for example, when the speed of the vehicle becomes a predetermined speed or less. This is because it is usually not possible to charge the battery while traveling at high speed.
- the vehicle-side control unit 44 determines whether or not the vehicle-side communication unit 43 is activated (S21).
- the vehicle-side communication unit 43 is activated when the power receiving unit 41 receives power of the first power value Pa.
- the vehicle side control unit 44 repeats S21.
- the vehicle side communication part 43 performs the process which establishes communication with the electric power feeding side communication part 23 of the electric power feeder 2 after the power receiving part 41 receives the electric power of 1st electric power value Pa, and starts (it is YES at S21). S22). Details of this process will be described later.
- the vehicle-side control unit 44 makes preparations for the power receiving unit 41 to receive power of the second power value Pb (S23).
- This preparation refers to, for example, a process of turning on a relay that connects the power receiving unit 41 and the power storage unit 42 (not shown).
- the vehicle-side control unit 44 switches the power supply source to the vehicle-side communication unit 43 so that the vehicle-side communication unit 43 operates using the power supplied from the power storage unit 42 as a power source. . This is because once communication is established, it is preferable to switch the power supply source to the power storage unit 42 that can stably supply power to ensure communication.
- the power receiving unit 41 starts receiving power from the power feeding unit 21.
- the vehicle-side control unit 44 determines whether or not the power storage unit 42 is fully charged during the power reception (S24).
- the vehicle-side control unit 44 performs the process of S24 again after a predetermined time has elapsed so that the power receiving unit 41 continues to receive power.
- the vehicle-side control unit 44 transmits a power supply stop signal from the vehicle-side communication unit 43 (S25).
- This power supply stop signal is a signal for stopping the supply of the second power value Pb of the power supply unit 21 to the power supply device 2. If charging continues even after the power storage unit 42 is fully charged, overcharging occurs, leading to heating of the power storage unit 42 and a decrease in life. Therefore, power supply is stopped by a power supply stop signal.
- the vehicle-side control unit 44 After transmitting the power supply stop signal, the vehicle-side control unit 44 performs a power reception end process.
- the power reception end process refers to, for example, a process of turning off a relay connecting the power reception unit 41 and the power storage unit 42 (not shown).
- the flow chart on the left side of FIG. 5 is the power supply side process (S12), and the flow chart on the right side is the vehicle side process (S22).
- the predetermined time Ttest is about several seconds. If this time is too long, it takes time to start power feeding. On the other hand, if this time is too short, the power feeding device 2 cannot respond.
- the request signal transmitted from the vehicle side communication unit 43 is received by the power supply side communication unit 23.
- the power supply side control unit 24 determines whether or not the power supply side communication unit 23 has received the request signal within a predetermined time Tlimit from the time when the power supply unit 21 starts supplying power at the first power value Pa in S11 ( S121).
- the predetermined time Tlimit is, for example, about several seconds.
- the power supply side control unit 24 stops the power supply to the power supply unit 21 (S16). Considering the case where the vehicle has passed the chargeable region B after starting the power supply at the first power value Pa, the power supply is continuously performed at the first power value Pa. Is a waste of power. Therefore, when there is no response within a predetermined time, it is preferable to determine that there is no power supply target and stop power supply.
- the power supply side control unit 24 controls the power supply unit 21 based on the predetermined time Ttest and the predetermined power value Ptest included in the request signal. To do. Specifically, control is performed so that the supply power of the power supply unit 21 becomes a predetermined power value Ptest after a predetermined time Ttest has elapsed since the power supply side communication unit 23 received the request signal (S122).
- the power supply side control unit 24 establishes communication between the power supply side communication unit 23 and the vehicle side communication unit 43 when the request signal is received within the predetermined time Tlimit in S121 (YES in S121). You may judge that it was done. In this case, calculation of the predetermined power value Ptest in S222 and transmission of the predetermined power value Ptest in S223 become unnecessary.
- the power supply side control unit 24 performs control so that the power supplied from the power supply unit 21 becomes the second power value Pb after a predetermined time Ttest has elapsed since the request signal was received.
- the vehicle side control unit 44 determines that communication has been established between the power supply side communication unit 23 and the vehicle side communication unit 43 if the second power value Pb is reached in S224. Further, the processing of S225 and S123 is not necessary.
- the vehicle detection unit 22 detects the power supply unit 21.
- Control is performed so that power is supplied at the first power value Pa and communication is established between the power supply side communication unit 23 and the vehicle side communication unit 43 in this state, Control is performed to supply power at the second power value Pb.
- the electric vehicle 3 to which the power supply apparatus 2 supplies power and the electric vehicle 3 to communicate with the power supply apparatus 2 can be associated with each other accurately.
- the vehicle side communication part 43 of the electric vehicle 3 is started based on 1st electric power value Pa smaller than 2nd electric power value Pb for supplying electric power to the electric vehicle 3, the electric power feeding part 21 of the electric power feeder 2 Therefore, it is possible to improve safety without discharging high power to the periphery of the device.
- the power supply device 2 and the power receiving device 4 share a predetermined value as the predetermined power value Ptest, so that the operations of S122 and S224 in FIG. 5 are applied as they are. be able to.
- the power supply side control unit 24 immediately controls the power supply unit 21 based on the predetermined power value Ptest included in the request signal when receiving the request signal. After transmitting the request signal in S224, the vehicle-side control unit 44 immediately determines whether or not the power received by the power receiving unit 41 is a predetermined power value Ptest.
- the vehicle-side communication unit 43 can be easily activated simply by positioning the electric vehicle 3 on the road surface on which the power reception unit 41 and the vehicle-side communication unit 43 are arranged. Furthermore, since the electric vehicle 3 serves as a shielding material, communication with other electric vehicles can be prevented.
- FIG. 7 is a diagram for explaining communication establishment processing according to Embodiment 2 of the present invention.
- steps that are the same as those in FIG. 5 used in the description of Embodiment 1 are given the same reference numerals, and descriptions thereof are omitted.
- the second embodiment is different from the first embodiment in that it is determined whether or not communication is established based on the chopper frequency Ftest instead of the power value Ptest of the first embodiment.
- the vehicle-side control unit 44 calculates a time Ttest and a chopper frequency Ftest based on random numbers after S211 already described (S216), and a request signal including the time Ttest and the chopper frequency Ftest. Is transmitted from the vehicle-side communication unit 43 (S217).
- the power supply side control unit 24 performs control so that power is supplied from the power supply unit 21 so that the chopper frequency Ftest is reached after the time Ttest has elapsed (S124).
- the vehicle side control unit 44 determines whether or not the chopper frequency Ftest of the power received by the power receiving unit 41 after the time Ttest has elapsed from the transmission of the request signal (S218). If the chopper frequency Ftest is reached (YES in S218), the vehicle-side control unit 44 transmits a power supply start signal from the vehicle-side communication unit 43, assuming that communication has been established (S215).
- power is directly supplied from the power receiving unit 41 to the vehicle side communication unit 43 without being stored in the power storage unit 42 even after communication is established, so that the vehicle side communication unit 43 is operated with less power loss. Can do.
- the request signal transmitted from the vehicle side communication unit 43 is received by the power supply side communication unit 23.
- the power supply side control unit 24 determines whether or not the power value included in the request signal substantially matches the first power value Pa supplied by the power supply unit 21 in S11 (S31). Note that “substantially match” means that the power value included in the request signal is within a predetermined range including the first power value Pa.
- the power supply side control unit 24 supplies power to the power supply unit 21. Stop (S16). This is because in this case, it is considered that the electric vehicle 3 to which the power supply device 2 supplies power and the electric vehicle 3 that communicates with the power supply device 2 do not match.
- the vehicle-side control unit 44 determines that communication with the power supply apparatus 2 has not been established, and returns the process to the start in FIG.
- the vehicle-side control unit 44 determines that communication has been established between the power supply-side communication unit 23 and the vehicle-side communication unit 43, and the vehicle-side communication unit 43 is The power supply start signal is transmitted by controlling (S43). Next, the vehicle-side control unit 44 advances the process to S23.
- the power supply start signal transmitted from the vehicle side communication unit 43 in S43 is received by the power supply side communication unit 23.
- the power supply side control unit 24 determines whether or not a power supply start signal is received within a predetermined time Tlimit after starting the power supply in S11 (S33). When the power cannot be received within the predetermined time Tlimit (NO in S33), the power supply side control unit 24 stops the power supply to the power supply unit 21 (S16).
- the power supply side control unit 24 determines that communication has been established between the power supply side communication unit 23 and the vehicle side communication unit 43, and performs processing. Proceeding to S13, the power supply unit 21 is controlled to supply power at the second power value Pb.
- the vehicle detection unit 22 detects the power supply unit 21. Control is performed to supply power at the first power value Pa. At this time, each of the power supply units 21a, 21b, and 21c supplies power with different first power values Pa (Pa1, Pa2, Pa3).
- the power supply unit 21 uses the second power value Pb. Control to supply power.
- the electric vehicle 3 to which the power supply device 2 supplies power and the electric vehicle 3 to communicate with the power supply device 2 can be accurately associated with each other.
- the first power value Pa (Pa1, Pa2, Pa3) may be fixedly assigned to each power supply apparatus 2 (2a, 2b, 2c), and is determined according to the time for supplying power. You may assign to each electric power feeder 2 (2a, 2b, 2c) according to the pattern. The pattern of the first power value Pa is different for each power feeding device 2.
- the vehicle-side control unit 44 includes the pattern of the first power value Pa received by the power receiving unit 41 instead of generating a request signal including the power value received by the power receiving unit 41 in S41. Generate a request signal.
- the power supply side control unit 24 uses the pattern of the first power value Pa included in the power supply device 2 included in the power supply device 2 as the pattern of the first power value Pa included in the request signal. If they substantially match, a response signal including the vehicle identification number included in the request signal is generated and transmitted to the power supply side communication unit 23.
- the first power value Pa may change the power value in the power receiving unit 41 due to a positional shift between the power feeding unit 21 and the power receiving unit 41. Even if the absolute value of the difference power value received by the power receiving unit 41 is changed by changing the power supply device 2 in time with different patterns, the power value changes with time.
- the electric vehicle 3 that communicates with the power feeding device 2 can be accurately associated.
- the present invention is suitable for use in an electric vehicle power supply system that supplies electric power from a power supply device to an electric vehicle in a contactless manner, an electric vehicle used in the system, and a power supply device.
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Abstract
Description
以下、本発明の一実施の形態における電気自動車の電力供給システムについて図1および図2を参照しながら説明する。図1は本発明の実施の形態1における電気自動車の電力供給システムの構成を説明する図である。図2はこの電気自動車の電力供給システムの構成を示すブロック図である。なお、図2において、実線矢印は信号の流れを、破線矢印は電力の流れを表している。
以下、本発明の実施の形態2における電気自動車の電力供給システムについて図7を用いて説明する。図7は、本発明の実施の形態2における通信確立処理を説明する図である。なお、図7において、実施の形態1の説明で用いた図5と共通するステップについては、同一符号を付しその説明を省略する。
以下、本発明の実施の形態3における電気自動車の電力供給システムについて図8を用いて説明する。図8は、本発明の実施の形態3における電気自動車の電力供給システムのブロック図である。図8において、実線矢印は信号の流れを、破線矢印は電力の流れを表している。なお、図8において、実施の形態1の説明で用いた図2と共通する構成については、同一符号を付しその説明を省略する。
実施の形態4では、複数の給電装置が、互いに異なる第1の電力値Paで給電する場合について説明する。以下、本発明の実施の形態4における電気自動車の電力供給システムについて図9、図10を用いて説明する。図9は、本発明の実施の形態4における電気自動車の電力供給システムの構成を説明する図である。図10は、本発明の実施の形態4における通信確立処理を説明する図である。なお、本実施の形態における給電装置2および受電装置4の構成は、実施の形態1の説明で用いた図2に示したものと同一である。
2 給電装置
21 給電部
22 車両検知部
23 給電側通信部
24 給電側制御部
3 電気自動車
4 受電装置
41 受電部
42 蓄電部
43 車両側通信部
44 車両側制御部
Claims (8)
- 給電装置から電気自動車へ非接触で電力を供給する電気自動車の電力供給システムであって、
前記電気自動車は、
前記給電装置と無線にて通信を行う車両側通信部と、
前記給電装置から非接触で電力供給を受ける受電部と、
前記受電部が受けた電力を蓄電する蓄電部と、を備え、
前記給電装置は、
前記電気自動車が所定の領域に入ったことを検知する車両検知部と、
前記電気自動車の車両側通信部と無線にて通信を行う給電側通信部と、
前記電気自動車の受電部へ非接触で電力を供給する給電部と、
前記給電部を制御する給電側制御部と、を備え、
前記給電側制御部は、
前記電気自動車が所定の領域に入ったことを前記車両検知部が検知した場合に前記給電部に対して第1の電力値で電力を供給するように制御し、
前記給電部が第1の電力値で電力を供給している状態で前記給電側通信部と前記車両側通信部との間で通信が確立できたと判断した場合に、前記給電部に対して前記第1の電力値よりも大きい第2の電力値で電力を供給するように制御する、
電気自動車の電力供給システム。 - 前記第1の電力値は、前記給電装置毎に互いに異なる値に設定されており、
前記車両側通信部は、
前記給電部が前記第1の電力値で電力を供給している状態で、前記受電部が受けている電力値および自己の車両識別番号を含む要求信号を送信し、
前記給電側通信部は、
前記要求信号に含まれる電力値が前記第1の電力値を含む所定の範囲内に入っている場合に前記車両識別番号を含む返答信号を送信し、
前記車両側通信部は、
前記要求信号を送信してから所定時間内に前記返答信号を受信した場合に給電開始信号を送信し、
前記給電側制御部は、
前記給電側通信部が前記給電開始信号を受信した場合に前記給電側通信部と前記車両側通信部との間で通信が確立できたと判断する、
請求項1記載の電気自動車の電力供給システム。 - 前記第1の電力値は、前記給電装置毎に互いに異なるパタンで時間的に変化するように設定されており、
前記車両側通信部は、
前記給電部が前記第1の電力値で電力を供給している状態で、前記受電部が受けている前記第1の電力値のパタンおよび自己の車両識別番号を含む要求信号を送信し、
前記給電側通信部は、
前記要求信号に含まれる前記第1の電力値のパタンが自己の前記給電装置のパタンである場合に前記車両識別番号を含む返答信号を送信し、
前記車両側通信部は、
前記要求信号を送信してから所定時間内に前記返答信号を受信した場合に給電開始信号を送信し、
前記給電側制御部は、
前記給電側通信部が前記給電開始信号を受信した場合に前記給電側通信部と前記車両側通信部との間で通信が確立できたと判断する、
請求項1記載の電気自動車の電力供給システム。 - 前記車両側通信部は、
前記給電部が前記第1の電力値で電力を供給している状態であることを判定したときに要求信号を送信し、
前記給電側制御部は、
前記給電部が第1の電力量で電力を供給しているときに前記給電側通信部が前記要求信号を受信した場合に前記給電側通信部と前記車両側通信部との間で通信が確立できたと判断する、
請求項1記載の電気自動車の電力供給システム。 - 前記車両側通信部は、前記給電装置の給電部より前記受電部に供給された前記第1の電力値の電力により起動する、
請求項1記載の電気自動車の電力供給システム。 - 前記蓄電部は、
前記受電部が前記給電部から受けている第2の電力値の電力にて蓄電を行う、
請求項1に記載の電気自動車の電力供給システム。 - 給電装置から非接触で電力を受ける電気自動車であって、
前記給電装置と無線にて通信を行う車両側通信部と、
前記給電装置から非接触で電力供給を受ける受電部と、
前記受電部が受けた電力を蓄電する蓄電部と、を備え、
前記車両側通信部は、
前記受電部が前記給電装置から第1の電力値で電力の供給を受けている状態で、前記給電装置に要求信号を送信し、
前記蓄電部は、
前記要求信号の送信の後に前記受電部が前記給電装置から受ける、前記第1の電力値よりも大きい第2の電力値の電力にて蓄電を行う、
電気自動車。 - 電気自動車に非接触で電力を供給する給電装置であって、
前記電気自動車が所定の領域に入ったことを検知する車両検知部と、
前記電気自動車と無線にて通信を行う給電側通信部と、
前記電気自動車へ非接触で電力を供給する給電部と、
前記給電部を制御する給電側制御部と、を備え、
前記給電側制御部は、
前記電気自動車が所定の領域に入ったことを前記車両検知部が検知した場合に前記給電部に対して第1の電力値で電力を供給するように制御し、
前記給電側通信部が、前記給電部が前記第1の電力値で電力を供給している状態で、前記電気自動車から要求信号を受信した場合に、前記給電部に対して前記第1の電力値よりも大きい第2の電力値で電力を供給するように制御する、
給電装置。
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EP11828467.8A EP2624413B1 (en) | 2010-10-01 | 2011-09-30 | Electricity supply system for electric automobile, and electric automobile and power supply device used in said system |
JP2012536222A JP5927585B2 (ja) | 2010-10-01 | 2011-09-30 | 電気自動車の電力供給システム、このシステムに用いる電気自動車および給電装置 |
CN201180045412.1A CN103119829B (zh) | 2010-10-01 | 2011-09-30 | 电动汽车的供电系统以及用于该系统的电动汽车和供电装置 |
US13/876,925 US9385558B2 (en) | 2010-10-01 | 2011-09-30 | Electricity supply system for electric automobile, and electric automobile and power supply device used in said system |
US15/174,109 US9597972B2 (en) | 2010-10-01 | 2016-06-06 | Power supply apparatus for vehicle and vehicle that is supplied with power from said apparatus |
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- 2011-09-30 JP JP2012536222A patent/JP5927585B2/ja not_active Expired - Fee Related
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CN103119829A (zh) | 2013-05-22 |
JP2016158493A (ja) | 2016-09-01 |
US20160280079A1 (en) | 2016-09-29 |
EP2624413A1 (en) | 2013-08-07 |
US9597972B2 (en) | 2017-03-21 |
CN105553118A (zh) | 2016-05-04 |
CN103119829B (zh) | 2016-01-06 |
CN105553118B (zh) | 2018-06-29 |
US20130181669A1 (en) | 2013-07-18 |
JPWO2012042902A1 (ja) | 2014-02-06 |
US9385558B2 (en) | 2016-07-05 |
EP2624413B1 (en) | 2021-01-27 |
JP5927585B2 (ja) | 2016-06-01 |
JP6249306B2 (ja) | 2017-12-20 |
EP2624413A4 (en) | 2017-10-18 |
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