JP2013236524A - Non-contact power feeding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact power feeding system which can align the positions of a power feeding device and a power receiving device accurately and easily and also can transmit electric power with high efficiency.SOLUTION: A non-contact power feeding system 1 comprises: a position mark 20 which is installed on a ground surface 100a; a power feeding device 10 which is installed a designated distance apart from the position mark 20; a power receiving device 30 which is mounted in a vehicle 200 and receives electric power from the power feeding device; a radar wave transmission/reception device 60 which is used to search for the position of the position mark 20; a position calculation device 70 which calculates a positional relation between the position mark 20 and the power receiving device 30 from a signal received by the radar wave transmission/reception device 60; and a guide device 80 which, on the basis of the positional relation obtained by the position calculation device 70, guides the vehicle 200 so that it comes to a place at the position of the power feeding device 10 aimed at by the power receiving device 30.

Description

  The present invention relates to a non-contact power feeding system that feeds power to a battery in a vehicle in a non-contact manner from a facility, and in particular, performs non-alignment between a power feeding device arranged on the ground surface and a power receiving device installed at the bottom of the vehicle. The present invention relates to a contact power supply system.

  Conventionally, a non-contact power feeding system has been proposed for charging a battery mounted on a vehicle from a facility. If the battery mounted on the vehicle can be charged in a non-contact manner, the trouble of attaching and detaching the electric cord becomes unnecessary. For example, by supplying an alternating current to a primary coil (power supply unit) on the power supply side installed in a parking lot or the like, an alternating current due to electromagnetic induction is applied to the secondary coil (power reception unit) on the power reception side installed on the bottom surface of the vehicle. And a charging device that supplies power to the battery from the secondary coil on the power receiving side has been proposed.

  As an example of such a non-contact charging device, for example, in a battery charging device for an electric vehicle disclosed in Patent Document 1, a battery 2 mounted on the electric vehicle 1 and a power receiving side coil 5 are connected via a rectifier 4. In addition, when the electric vehicle 1 is parked at a predetermined position in the parking lot 10, the power feeding side coil 6 connected to the AC power source 8 is disposed so as to face the power receiving side coil 5. In this battery charger for an electric vehicle, the primary coil on the power supply side and the secondary coil on the power reception side are arranged in an appropriate positional relationship by moving the primary coil on the power supply side according to the stop position of the vehicle, Power can be efficiently transmitted from the primary coil on the power supply side to the secondary coil on the power reception side.

Japanese Patent Laid-Open No. 5-111168

  However, in the battery charger for an electric vehicle of Patent Document 1, the vehicle is stopped at a position where the primary coil on the power supply side is fixed and cannot be moved, or where the primary coil on the power supply side cannot be seen. In this case, the primary coil on the power supply side cannot be placed at an appropriate position, and the charging efficiency is significantly reduced due to misalignment, and power is efficiently transferred from the primary coil on the power supply side to the secondary coil on the power reception side. I couldn't. For this reason, it has been necessary to correct the position of the vehicle so that the primary coil on the power supply side and the secondary coil on the power receiving side face each other so that power can be transmitted efficiently. There was a problem that support could not be provided.

  The present invention has been made to solve the above-described problems, and even when the power feeding device is fixed and cannot be moved or visually recognized, the power feeding device and the power receiving device are provided. It is an object of the present invention to provide a non-contact power feeding system that can accurately and easily align with the power supply and can transmit power with high efficiency.

In order to solve the above problems, a non-contact power feeding system according to the present invention is installed on the ground side, and is installed on the ground side with a predetermined distance from the power feeding device that supplies power by non-contact. A position indicator, a power receiving device mounted on the vehicle and receiving power from the power supply device, a radar wave or light wave transmitting / receiving device mounted on the vehicle for searching for the position indicator, and a received signal of the transmitting / receiving device. A position calculation device that calculates the position of the vehicle based on the position sign, and a guidance device that guides the vehicle to a predetermined power feeding position based on position information from the position calculation device. Is.

  According to the non-contact power feeding system of the present invention, the vehicle is placed so that the power receiving device falls within a predetermined position range with respect to the power feeding device based on the detection result of the position sign installed at a predetermined position from the power feeding device. By guiding, even when the power feeding device is fixed and cannot be moved or visually recognized, the alignment between the power feeding device installed in the power feeding facility and the power receiving device installed in the vehicle is accurate. In addition, there is an effect that power can be transmitted easily and with high efficiency.

1 is a schematic diagram of a contactless power feeding system according to Embodiment 1. FIG. It is a figure which shows the position of the electric power feeder in the non-contact electric power feeding system which concerns on Embodiment 1, and the receiving device of a vehicle. It is a figure which shows the normal vehicle position which performs electric power reception in the non-contact electric power feeding system which concerns on Embodiment 1. FIG. It is a figure for demonstrating the guidance of the vehicle in the non-contact electric power feeding system which concerns on Embodiment 1. FIG. 3 is a flowchart showing a vehicle guidance process procedure in the non-contact power feeding system according to Embodiment 1; 3 is a schematic diagram of a non-contact power feeding system according to Embodiment 2. FIG. 6 is a flowchart showing a vehicle guidance process procedure in the non-contact power feeding system according to the second embodiment. 6 is a schematic diagram of a non-contact power feeding system according to Embodiment 3. FIG. 10 is a flowchart showing a vehicle guidance process procedure in the non-contact power feeding system according to the third embodiment.

  Hereinafter, a non-contact power feeding system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram of a non-contact power feeding system according to Embodiment 1, and FIG. 2 is a diagram illustrating positions of a power feeding device and a vehicle power receiving device in the non-contact power feeding system according to Embodiment 1. FIG. 3 is a diagram illustrating a normal vehicle position where power is received in the non-contact power feeding system according to the first embodiment. FIG. 4 is a diagram for explaining vehicle guidance in the non-contact power feeding system according to the first embodiment, and FIG. 5 illustrates a vehicle guidance process procedure in the non-contact power feeding system according to the first embodiment. It is a flowchart to show.

  First, the configuration of the non-contact power feeding system according to Embodiment 1 will be described with reference to FIGS. 1 and 2. The non-contact power supply system 1 includes a position sign 20 installed on the ground surface 100a in the power supply facility 100 that supplies power to the vehicle 200, and a power supply apparatus 10 installed on the ground surface 100a at a predetermined distance from the position sign 20. A power receiving device 30 that is mounted on the vehicle 200 and receives power from the power supply device 10; a charging device 40 that charges the received power to a battery 50 that is a power storage; and a vehicle 200 for searching for the position of the position indicator 20. A radar wave transmission / reception device 60 installed on the front surface of the vehicle, a position calculation device 70 for calculating a positional relationship between the position marker 20 and the power reception device 30 of the vehicle 200 from a signal received by the radar wave transmission / reception device 60, and a position calculation device And a guidance device 80 that guides the vehicle 200 so that the power receiving device 30 is positioned on the target position of the power supply device 10 based on the position information obtained in 70. It has been. The guidance device 80 includes a display 81 that is a display device that displays an image of a target vehicle position and a speaker 82 that is an acoustic device that informs by sound (voice).

  As shown in FIG. 2, the center position 10 a of the power supply apparatus 10 is located at the coordinate position of Y in the Y-axis direction and X in the X-axis direction from the center position 20 a of the position marker 20. Further, the center position 30a of the power receiving device 30 mounted on the vehicle 200 is located at the coordinate position of y in the Y-axis direction and x in the X-axis direction from the center position 60a of the radar wave transmitting / receiving device 60. Furthermore, a power feeding position allowable range 10b is set in which the power receiving device 30 can receive power efficiently if the power receiving device 30 falls within a predetermined range with respect to the power feeding device 10.

  As a method of sending electric power from the power supply apparatus 10 side to the power reception apparatus 30 side of the vehicle, a method of providing a coil in the power supply apparatus 10 and the power reception apparatus 30 and utilizing mutual induction generated between the two coils can be cited. By applying a high-frequency current to the primary coil on the power supply side, a change in the magnetic field is generated, and an induction current is generated in the secondary coil on the power receiving side due to the change in the magnetic field, thereby transmitting power from the primary coil to the secondary coil. It becomes possible.

  The position marker 20 is a reflector for sending back the radar wave emitted from the radar wave transmission / reception device 60 in the emission direction, and the reflected wave is detected by the radar wave transmission / reception device 60. The position marker 20 is configured using, for example, a corner reflector, and is installed at a predetermined position from the center position 10 a of the power feeding device 10 on the ground surface 100 a of the power feeding facility 100.

  The power receiving device 30 is power receiving means for receiving power from the power feeding device 10 installed on the ground surface 100 a and supplying the received power to the battery 50 via the charging device 40. The power receiving device 30 having a secondary coil is installed at the bottom of the vehicle 200. By moving the vehicle 200 so that the power receiving device 30 and the power feeding device 10 face each other, the power receiving device 30 can efficiently receive power from the power feeding device 10. When the power receiving device 30 and the power feeding device 10 are opposed to each other, the greater the positional deviation between the center positions, the more the power receiving efficiency is reduced. Therefore, in order to obtain a certain power receiving efficiency, the vehicle 200 is guided so that the center position 30a of the power receiving device 30 falls within the power feeding position allowable range 10b.

  The charging device 40 is charging means for charging the battery 50 with the power supplied from the power receiving device 30. As the charging device 40, a specific circuit configuration is arbitrary, and various circuit types can be used. For example, a general charging provided with an overcharge / overdischarge / overcurrent protection circuit, etc. A control circuit can be used.

  The battery 50 is a rechargeable battery that stores electric power supplied from the power receiving device 30 via the charging device 40. For example, a rechargeable battery that is generally used, such as a lithium ion secondary battery or a nickel hydride secondary battery. A battery can be used.

  The radar wave transmission / reception device 60 is a search means for searching for the position marker 20, and is installed in a front grill or a front bumper on the front portion of the vehicle 200. The power receiving device 30 installed at the bottom of the vehicle 200 is installed at a predetermined distance from the radar wave transmitting / receiving device 60. The radar wave transmitting / receiving device 60 emits an electromagnetic wave radar wave, receives a reflected wave from the position marker 20, and sends the received signal to the position calculating device 70. The radar wave transmission / reception device 60 may be of any specific method. For example, a known radar method such as a millimeter wave radar or a microwave radar can be used. You may share with the radar apparatus used with a brake system. It is also possible to apply a light wave transmission / reception device that uses a laser beam or the like as a radar wave.

  The position calculation device 70 calculates the amount of displacement between the center position 10a of the power feeding device 10 and the center position 30a of the power receiving device 30 from the center position 20a of the position marker 20 captured by the radar wave transmitting / receiving device 60.

  The guidance device 80 displays the position information from the position calculation device 70 on the display 81, issues an instruction to match the center position 10a of the power supply device 10 and the center position 30a of the power reception device 30, and makes the vehicle 200 optimal. Guide to position. Specifically, the amount of positional deviation includes the “position of the center position 10a of the power feeding apparatus 10 from the center position 20a of the position marker 20” and the “center position 30a of the power receiving apparatus 30 from the center position 60a of the radar wave transmitting / receiving apparatus 60”. "The target position of the central position 30a of the power receiving device 30 from the central position 20a of the position marker 20" and "the actual position of the central position 30a of the power receiving device 30 from the central position 20a of the position marker 20" calculated from It is calculated by the difference between

  The center position 20a of the position marker 20 and the center position 60a of the radar wave transmitting / receiving apparatus 60 when the power is transmitted and received in a contactless manner between the power supply apparatus 10 on the ground side and the power reception apparatus 30 on the vehicle 200 side. The positional relationship between the center position 10a and the center position 30a of the power receiving device 30 will be described with reference to FIG. The center position 10a of the power feeding apparatus 10 is at a position of coordinates (Xcm, Ycm) from the center position 20a of the position marker 20, and the center position 30a of the power receiving apparatus 30 is coordinated (xcm from the center position 60a of the radar wave transmitting / receiving apparatus 60). , Ycm). When the center position 10a of the power feeding apparatus 10 and the center position 30a of the power receiving apparatus 30 match, the center position 60a of the radar wave transmitting / receiving apparatus 60 is coordinated (X-xcm, Y-ycm). Here, the front side and the right side of the center position are positive, and | Y |> | y |.

  FIG. 4 shows a vehicle position state before the vehicle 200 in the power supply facility 100 is guided to the power supply position. A method for calculating the amount of displacement between the center position 10a of the power supply apparatus 10 and the center position 30a of the power reception apparatus 30 will be described. When the center position 60a of the radar wave transmitting / receiving apparatus 60 is located at the coordinate (αcm, βcm) from the center position 20a of the position marker 20, the amount of positional deviation is (left-right direction, front-rear direction) = (α− (X− x) cm, β- (Yy) cm). Here, it is assumed that the positional deviation amount indicates the direction in which the vehicle 200 should move, with the front and right sides of the center position 60a of the radar wave transmitting / receiving apparatus 60 being positive.

  In the first embodiment, the display device of the guidance device 80 is installed in the vehicle 200, for example, and the amount of misalignment calculated by the position calculation device 70 (for example, ○○ cm to the left, ΔΔcm to the front, etc.). The display 81 and the speaker 82 are used for display.

  Although the specific configuration of the display 81 is arbitrary, a general liquid crystal display, an organic EL display, or the like can be used. In addition, the speaker 82 outputs any sound or sound corresponding to the amount of misalignment so that the volume of the sound increases as the instruction sound of front and rear, left and right, or the amount of misalignment decreases, in any specific manner. can do. The display 81 may be shared with a navigation system having a display, a mobile phone, or a smartphone.

  As described above, the driver can move the vehicle 200 while confirming the positional deviation amount instructed by the guidance device 80 with the display on the screen of the display 81 or the sound from the speaker 82, and the center position 10 a of the power feeding device 10 can be determined. The center position 30a of the power receiving device 30 can be accurately and easily aligned.

Next, the operation of the non-contact power feeding system 1 according to the first embodiment will be described with reference to the flowchart of FIG. First, the operation switch (not shown) is set to “ON” to activate the guidance device 80, and it is determined whether or not the battery charging mode is set (step S101). If it is not in the battery charging mode (NO in step S101), the determination in step S101 is continued. If the battery charging mode is selected (YES in step S101), the radar wave transmitting / receiving device 60 searches for the position marker 20 (step S102).

  Next, the position calculation device 70 determines whether or not the radar wave transmission / reception device 60 has captured the position marker 20 (step S103). If the radar wave transmitting / receiving apparatus 60 has not captured the position marker 20 (NO in step S103), the driver moves the vehicle 200 so that the position marker 20 can be captured (step S104). When a reflector other than the position marker 20 such as another parked vehicle is searched, the approximate position of the position marker 20 is transmitted in advance to the radar wave transmitting / receiving device 60 by communication or the like, and the reflection other than the vicinity of the approximate position is reflected. A filtering process may be performed so that objects are not detected during the search.

  On the other hand, when the radar wave transmission / reception device 60 can capture the position marker 20 (YES in step S103), the position calculation device 70 detects the amount of displacement between the center position 10a of the power supply device 10 and the center position 30a of the power reception device 30. Is calculated (step S105). The guidance device 80 displays (sound output) the amount of displacement on the display 81 and the speaker 82 (step S106).

  The driver moves the vehicle 200 to a position where predetermined power can be transmitted and received in accordance with the display on the screen of the display 81 and the guidance of the sound from the speaker 82 with the amount of displacement indicated by the guidance device 80 (step 107). Here, the vehicle 200 only needs to be guided so that the center position 30a of the power receiving device 30 falls within the power feeding position allowable range 10b.

  Thereby, when the movement of the vehicle 200 is completed and the power receiving device 30 comes to a position facing the power feeding device 10, power transmission from the power feeding device 10 to the power receiving device 30 is started, and the battery 50 is connected via the charging device 40. Is charged.

  Thus, according to the non-contact power feeding system according to Embodiment 1, the power receiving device is located at a predetermined position with respect to the power feeding device based on the search result of the position marker installed at a predetermined position from the power feeding device. By guiding the vehicle to enter the range, even if the power supply device is fixed and difficult to move or the power supply device cannot be seen, the power supply device installed in the power supply facility and the vehicle It is possible to expect a remarkable effect that the positioning with the installed power receiving apparatus can be performed accurately and easily and power can be transmitted with high efficiency.

Embodiment 2. FIG.
FIG. 6 is a schematic diagram of a non-contact power feeding system according to the second embodiment. FIG. 7 is a flowchart showing a vehicle guidance process procedure in the non-contact power feeding system according to the second embodiment. The difference between the contactless power feeding system according to the first embodiment shown in FIG. 1 and the contactless power feeding system according to the second embodiment shown in FIG. 6 is that the display which is the display device of the guidance device 80 in the first embodiment. 81 and the speaker 82 are installed in the vehicle 200, but in the second embodiment, the display 81 and the speaker 82 are installed in the guidance device 80b in the power supply facility 100 on the ground side. The guidance device 80a on the vehicle 200 side is provided with a transmission device 83, and the guidance device 80b on the ground side is provided with a reception device 84, which are connected by wireless communication. The other constituent elements are the same as those in the first embodiment, and thus description thereof is omitted.

Next, the non-contact power feeding system according to Embodiment 2 will be described with reference to FIG. The display 81 and the speaker 82 are installed on a guidance device 80b provided on the wall surface in the ground-side power supply facility 100, and the positional deviation amount calculated by the position calculation device 70 is the vehicle 200.
The data is transmitted from the side guidance device 80a by the transmission device 83 to the reception device 84 of the ground side guidance device 80b by wireless communication. The amount of displacement calculated by the position calculation device 70 is displayed on the display 81 and the speaker 82 of the display device of the guidance device 80b, for example, XX cm to the left and △ Δ cm to the front, and transmitted to the driver. .

  Next, the operation of the non-contact power feeding system 1 according to the second embodiment will be described with reference to the flowchart of FIG. In FIG. 7, steps S201 to S205 are the same as steps S101 to S105 of the first embodiment, and thus description thereof is omitted. The positional deviation amount 70 calculated by the position calculating device 70 is wirelessly transmitted to the receiving device of the ground side guidance device 80b by the transmission device 83 of the guidance device 80a on the vehicle 200 side. The received positional deviation amount is displayed on the display 81 and the speaker 82 of the display device of the guidance device 80b, and is output as a sound (step S206).

  In step S207, as in step S107, the driver can send and receive predetermined power to the vehicle 200 in accordance with the amount of displacement indicated by the guidance device 80a on the screen of the display 81 and the guidance of sound from the speaker 82. Move to. Here, the vehicle 200 only needs to be guided so that the center position 30a of the power receiving device 30 falls within the power feeding position allowable range 10b, as in the first embodiment.

  Thereby, when the movement of the vehicle 200 is completed and the power receiving device 30 comes to a position facing the power feeding device 10, power transmission from the power feeding device 10 to the power receiving device 30 is started, and the battery 50 is connected via the charging device 40. Is charged.

  Thus, according to the non-contact power feeding system according to the second embodiment, as in the first embodiment, based on the search result of the position marker installed at a predetermined position from the power feeding device, By guiding the vehicle so that the power receiving device is within the predetermined position range, even if the power feeding device is fixed and difficult to move or the power feeding device cannot be seen, it is installed in the power feeding facility. It is possible to expect a remarkable effect that the positioning of the power feeding device and the power receiving device installed in the vehicle can be accurately and easily performed and power can be transmitted with high efficiency. Further, providing the display device on the ground side has an effect of facilitating the moving operation of the vehicle.

Embodiment 3 FIG.
FIG. 8 is a schematic diagram of a non-contact power feeding system according to the second embodiment. FIG. 9 is a flowchart showing a vehicle guidance process procedure in the non-contact power feeding system according to the second embodiment. The difference between the contactless power supply system according to the first embodiment shown in FIG. 1 and the contactless power supply system according to the third embodiment shown in FIG. 8 is that, in the first embodiment, according to the instruction of the display device of the guidance device 80. In contrast to the vehicle 200 being guided to the optimal position, the second embodiment is that the automatic vehicle control device 85 is provided in the guidance device 80. The other constituent elements are the same as those in the first embodiment, and thus description thereof is omitted.

  Next, the operation of the non-contact power feeding system according to Embodiment 3 will be described with reference to FIG. The positional deviation amount calculated by the position calculation device 70 is displayed, for example, as OOcm to the left, △ Δcm to the front, and the like by the display 81 and the speaker 82 of the guidance device 80, and the position is calculated. Based on the amount of positional deviation calculated by the device 70, the vehicle 200 is automatically driven by the automatic vehicle control device 85 so that the center position 30 a of the power receiving device 30 of the vehicle 200 comes to the center position 10 a of the power feeding device 10. Moved accurately.

That is, the automatic vehicle control device 85 has a positional deviation amount equal to or less than a predetermined threshold value based on the position information calculated by the position calculating device 70 from the received signal in which the position marker 20 is captured by the radar wave transmitting / receiving device 60 (power feeding). The steering and the motor (not shown) of the vehicle 200 are controlled so that the center position 30a of the power receiving device 30 of the vehicle 200 falls within the allowable position range 10b), and the vehicle 200 is automatically set to the target position. It is an automatic driving means to be moved. Specifically, it is configured using a general-purpose CPU or the like.

  Next, the operation of the non-contact power feeding system 1 in the third embodiment will be described with reference to the flowchart of FIG. 9 showing the vehicle guidance processing procedure. In FIG. 9, steps S301 to S303 are the same as steps S101 to S103 of the first embodiment, and thus description thereof is omitted. When the radar wave transmission / reception device 60 has not captured the position marker 20 (NO in step S303), the automatic vehicle control device 85 repeatedly moves the vehicle 200 until the position marker 20 can be captured (step S304).

  Steps S305 to S306 are the same as steps S105 to S106 of the first embodiment, and thus description thereof is omitted.

  Whether the amount of displacement calculated by the position calculation device 70 is equal to or less than a predetermined threshold (so that the center position 30a of the power reception device 30 of the vehicle 200 is within the power supply position allowable range 10b). It is determined whether or not (step S307). When the positional deviation amount is larger than the predetermined threshold value (NO in step S307), the automatic vehicle control device 85 controls the steering and the motor of the vehicle 200, and the positional deviation amount becomes equal to or smaller than the predetermined threshold value. The position of the vehicle 200 is automatically moved to (step S308).

  Thereby, when the movement of the vehicle 200 is completed and the power receiving device 30 comes to a position facing the power feeding device 10, power transmission from the power feeding device 10 to the power receiving device 30 is started, and the battery 50 is connected via the charging device 40. Is charged.

  As described above, according to the non-contact power feeding system according to Embodiment 3, the power receiving device is located at a predetermined position with respect to the power feeding device based on the search result of the position marker installed at a predetermined position from the power feeding device. The vehicle is automatically guided by the automatic vehicle control device so as to fall within the range, so that the positioning of the power feeding device installed in the power feeding facility and the power receiving device installed in the vehicle can be accurately and easily performed with high efficiency. The remarkable effect that electric power can be transmitted to is expected.

  Note that although an example in which the power feeding device is installed on the ground surface has been described in this embodiment, it may be installed on a wall surface or the like, and installed in a place where it can be installed, such as a ground surface or a wall surface in a parking area such as a parking lot. However, the power receiving device on the vehicle side may be installed to face this, and the present invention is not limited to this.

  In the present embodiment, the case where power is sent from the power supply device installed on the ground side to the power reception device installed on the vehicle side has been described. However, the power reception device is also provided on the ground surface, and the power supply device is also provided on the vehicle side. Thus, it is also possible to send electric power from the vehicle power storage to the ground side.

  In this embodiment, as a non-contact power feeding method, a method using mutual induction generated between two coils has been described. For example, an electromagnetic resonance method using a resonance phenomenon of an electromagnetic field, a microwave You may use the wireless power transmission system using.

  In the non-contact power supply system of the present invention, the vehicle may be an electric vehicle that can be driven by electric power supplied from the power supply device and the power source is only a motor, or a hybrid vehicle that uses both an internal combustion engine and a motor. It may be. Further, the vehicle may be a fuel cell vehicle equipped with a fuel cell using DC as a power source.

Further, within the scope of the invention, the present invention can freely combine the embodiments,
Each embodiment can be modified or omitted as appropriate.

  Moreover, in the figure, the same code | symbol shows the same or an equivalent part.

DESCRIPTION OF SYMBOLS 1 Non-contact electric power feeding system 10 Electric power feeding apparatus 10a Center position 10b Allowable electric power feeding position 20 Position mark 20a Center position
DESCRIPTION OF SYMBOLS 30 Power receiving apparatus 30a Center position 40 Charging apparatus 50 Battery 60 Radar wave transmission / reception apparatus 60a Center position 70 Position calculation apparatus 80, 80a, 80b Guidance apparatus 81 Display 82 Speaker 83 Transmission apparatus 84 Reception apparatus 85 Automatic vehicle control apparatus 100 Power supply facility 100a Ground Top
200 vehicles

Claims (7)

A power supply device installed on the ground side and supplying power in a non-contact manner;
A position marker installed on the ground side at a predetermined distance from the power supply device;
A power receiving device mounted on a vehicle and receiving power from the power supply device;
A radar wave or light wave transmitting / receiving device mounted on the vehicle for searching for the position marker;
A position calculating device that calculates the position of the vehicle from the position indicator based on a received signal of the transmitting / receiving device;
A non-contact power feeding system comprising: a guidance device that guides the vehicle to a predetermined power feeding position based on position information obtained by the position calculating device.   The contactless power feeding system according to claim 1, wherein each of the power feeding device and the power receiving device is provided with a coil, and power is transmitted and received by an induced current between the coils.   The wireless power supply system according to claim 1 or 2, wherein a power storage device is mounted on the vehicle, and the power received by the power receiving device is stored in the power storage device.   The said guidance | induction apparatus is equipped with the image display apparatus which displays the said positional information, and the acoustic apparatus which transmits the said positional information with a sound, or any one of the Claims 1-3 characterized by the above-mentioned. Contactless power supply system described in 1.   The non-contact power feeding system according to claim 4, wherein the image display device and the acoustic device are installed in the vehicle.   The image display device and the acoustic device are installed on the ground side, the guidance device on the vehicle side is installed with a transmission device, and the guidance device on the ground side is installed with a reception device. The contactless power feeding system according to claim 4, wherein the position information is transmitted to the ground-side guidance device by a transmission device.   The non-contact power feeding system according to claim 1, wherein the guidance device includes an automatic control device that automatically drives the vehicle, and automatically guides the vehicle to a predetermined position. .

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