WO2014087823A1 - 非接触給電装置、非接触給電システム及び非接触給電方法 - Google Patents
非接触給電装置、非接触給電システム及び非接触給電方法 Download PDFInfo
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- WO2014087823A1 WO2014087823A1 PCT/JP2013/080773 JP2013080773W WO2014087823A1 WO 2014087823 A1 WO2014087823 A1 WO 2014087823A1 JP 2013080773 W JP2013080773 W JP 2013080773W WO 2014087823 A1 WO2014087823 A1 WO 2014087823A1
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- charging
- remaining capacity
- unit
- battery
- parking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
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- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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Definitions
- the present invention relates to a contactless power supply device, a contactless power supply system, and a contactless power supply method.
- Non-contact power supply device that has a power receiving coil and charges a battery mounted on an electric vehicle or the like in a non-contact manner by magnetic coupling between the power receiving coil and a power transmitting coil provided on the ground (Patent Document). 1).
- the non-contact power feeding device for example, after the user performs alignment between the power transmission coil and the power receiving coil, the non-contact power feeding is started by operating the charge start switch.
- the present invention has been made to solve such a problem, and the object thereof is a non-contact power supply device, a non-contact power supply system, and a non-contact power supply method capable of further improving convenience. Is to provide.
- the contactless power supply device detects the remaining capacity of the battery included in the vehicle, and determines whether or not to start the battery charging operation based on whether the detected remaining capacity is equal to or less than a charging start threshold. If it is determined and it is determined to start the charging operation, the charging operation is started.
- FIG. 1 is a block diagram illustrating a schematic configuration of a contactless power supply system including a contactless power supply apparatus according to the first embodiment.
- FIG. 2 is a schematic diagram illustrating a detailed configuration of the transmission unit and the reception unit illustrated in FIG. 1.
- FIG. 3 is a flowchart illustrating an example of the non-contact power feeding method according to the first embodiment.
- FIG. 4 is a flowchart showing another example of the non-contact power feeding method according to the first embodiment, and shows processing executed when the vehicle is stopped in the parking space.
- FIG. 5 is a block diagram illustrating a schematic configuration of a contactless power supply system including a contactless power supply apparatus according to the second embodiment.
- FIG. 6 is a flowchart illustrating an example of the non-contact power feeding method according to the second embodiment.
- the contactless charging system 1 includes a contactless power supply device 201 as a vehicle side unit mounted on a vehicle 200 and a ground side unit 100.
- the non-contact charging system 1 is a system that supplies power from the ground unit 100 to the non-contact power supply apparatus 201 in a non-contact manner and charges a battery 28 provided in the vehicle 200.
- the ground side unit 100 is installed in a power supply stand or a parking lot.
- the ground side unit 100 supplies electric power from the power transmission coil 12 to the power receiving coil 22 described later by non-contact power feeding in a state where the vehicle 200 is parked at a predetermined parking position.
- the ground side unit 100 includes a power control unit 11, a power transmission coil 12, a reception unit 13, a wireless communication unit 14, and a control unit 15.
- the power control unit 11 is a circuit for converting AC power transmitted from the AC power source 300 into high-frequency AC power and transmitting the AC power to the power transmission coil 12.
- the power control unit 11 includes a rectification unit 111, a PFC (Power Factor Correction) circuit 112, an inverter 113, and a sensor 114.
- PFC Power Factor Correction
- the rectifying unit 111 is a circuit that is electrically connected to the AC power supply 300 and rectifies the output AC power from the AC power supply 300.
- the PFC circuit 112 is a circuit for improving the power factor by rectifying the output waveform from the rectifying unit 111, and is connected between the rectifying unit 111 and the inverter 113.
- the inverter 113 is a power conversion circuit including a PWM control circuit having a smoothing capacitor and a switching element such as an IGBT.
- the inverter 113 converts the DC power into high-frequency AC power based on the switching control signal from the control unit 15 and supplies it to the power transmission coil 12.
- the sensor 114 is connected between the PFC circuit 112 and the inverter 113, and detects a current and a voltage flowing between the PFC circuit 112 and the inverter 113.
- the power transmission coil 12 is a coil for supplying power in a non-contact manner to the power reception coil 22 mounted on the vehicle 200, and is, for example, circular (including an ellipse) in a direction parallel to the road surface of the parking space, or It is wound in a polygonal shape.
- the power transmission coil 12 is provided in the parking space. Specifically, the power transmission coil 12 is provided so as to be positioned directly below the power reception coil 22 while keeping a distance from the power reception coil 22 when the vehicle 200 is parked at a predetermined parking position in the parking space. .
- the receiving unit 13 is a sensor having a receiving antenna and detects a magnetic field near the receiving antenna.
- the receiving unit 13 receives an electromagnetic wave transmitted from the transmitting unit 23 of the vehicle 200.
- the frequency of the electromagnetic wave used for communication between the reception unit 13 and the transmission unit 23 is a frequency within a frequency band used in a vehicle peripheral device such as an intelligent key (registered trademark) or a frequency in the vicinity of this frequency band. It can be.
- a communication method suitable for a short distance is used for communication between the reception unit 13 and the transmission unit 23.
- the wireless communication unit 14 performs bidirectional communication with the wireless communication unit 24 mounted on the vehicle 200.
- the frequency of the electromagnetic wave used for communication between the wireless communication unit 14 and the wireless communication unit 24 is a frequency used in the vehicle peripheral device in consideration of interference with the vehicle peripheral device such as an intelligent key (registered trademark). A higher frequency is set.
- a communication method suitable for a long distance such as various wireless LAN methods is used.
- the control unit 15 controls the entire ground side unit 100. Specifically, the control unit 15 controls the power control unit 11 and the wireless communication unit 14. The control unit 15 transmits a control signal for starting power supply from the ground side unit 100 to the vehicle 200 side by communication between the wireless communication unit 14 and the wireless communication unit 24, or from the ground side unit 100. A request signal for receiving power is received from the vehicle 200 side. The control unit 15 performs switching control of the inverter 113 based on the detection current of the sensor 114 and controls electric power transmitted from the power transmission coil 12.
- the non-contact power supply apparatus 201 includes a power receiving coil 22, a transmission unit 23, a wireless communication unit 24, a control unit 25, a rectification unit 26, a relay unit 27, a battery 28, and an inverter 29 as vehicle-side units.
- the motor 30 and the notification unit 32 are provided.
- the power receiving coil 22 is a coil that receives power from the power transmitting coil 12 of the ground unit 100 in a non-contact manner. Power receiving coil 22 is provided on the bottom surface of vehicle 200. Similarly to the power transmission coil 12, the power reception coil 22 is wound, for example, in a circular shape (including an ellipse) or a polygonal shape in a direction parallel to the road surface in the parking space.
- the power receiving coil 22 is provided so as to be positioned immediately above the power transmission coil 12 while maintaining a distance from the power transmission coil 12 when the vehicle 200 is parked at a predetermined parking position in the parking space.
- the transmission unit 23 is a sensor including a transmission antenna, and transmits electromagnetic waves to the reception unit 13.
- the wireless communication unit 24 performs bidirectional communication with the wireless communication unit 14 provided on the ground unit 100 side.
- the rectifying unit 26 is connected to the power receiving coil 22 and is configured by a rectifying circuit that rectifies AC power received by the power receiving coil 22 into direct current.
- the relay unit 27 includes a relay switch that is switched on and off under the control of the control unit 25. By turning off the relay switch, the high-power system including the battery 28, the power receiving coil 22 that serves as a charging circuit unit, and the rectification unit 26 has a function of disconnecting from the weak electric system including H.26.
- the battery 28 serves as a power source for the vehicle 200, and is configured by connecting a plurality of secondary batteries.
- the inverter 29 is a control circuit such as a PWM control circuit having a switching element such as an IGBT.
- the inverter 29 converts the DC power output from the battery 28 into AC power based on the switching control signal and supplies the AC power to the motor 30.
- the motor 30 is composed of, for example, a three-phase AC motor, and is a drive source for driving the vehicle 200.
- the control unit 25 controls the switching of the wireless communication unit 24 and the inverter 29.
- the control unit 25 includes a remaining capacity detection unit (remaining capacity detection unit) 25a, a charge start determination unit (charge start determination unit) 25b, a charge control unit (charge control unit) 25c, and a parking start determination unit (parking start determination). Means) 25d.
- the remaining capacity detection unit 25a detects the remaining capacity of the battery 28 of the vehicle 200 parked in the parking space where the power transmission coil 12 is provided, that is, the parking space designated by the ground unit 100.
- the remaining capacity detection unit 25a calculates the remaining capacity from, for example, the battery voltage, or calculates the remaining capacity from the charge / discharge balance.
- the charging start determination unit 25b applies charging operation to the battery 28, for example, high-frequency power to the power transmission coil 12 based on whether the remaining capacity detected by the remaining capacity detection unit 25a is equal to or less than a charging start threshold. It is determined whether or not to start the operation. Specifically, the charging start determination unit 25b determines to start the charging operation when the remaining capacity of the battery 28 is equal to or less than the charging start threshold, and performs the charging operation when the remaining capacity of the battery 28 is greater than the charging start threshold. Judge not to start.
- the charging control unit 25c starts the charging operation when the charging start determining unit 25b determines that the charging operation is started. Specifically, when it is determined by the charging start determination unit 25b that the charging operation is started, the charging control unit 25c controls the wireless communication unit 24 and transmits a control signal to the ground side unit 100 to receive power. To do. The control signal is received by the wireless communication unit 14 of the ground-side unit 100, and the control unit 15 controls the power control unit 11 to apply high-frequency power to the power transmission coil 12. In addition, when the charging start determination unit 25b determines that the charging operation is started, the charging control unit 25c turns on the relay unit 27 and controls the non-contact power feeding apparatus 201 to a state where power can be received.
- the parking start determination unit 25d determines whether or not the vehicle 200 has started parking.
- the parking start determination unit 25d determines whether or not the vehicle 200 has started parking based on, for example, GPS information and map information. That is, the parking start determination unit 25d specifies the position of the vehicle 200 from the GPS information, and determines that the vehicle 200 has started parking when the specified position approaches the position of the ground-side unit 100.
- the parking start determination unit 25d may determine that the vehicle 200 has started parking when it detects that the shift position has moved to the rear (reverse) position, or the vehicle speed is equal to or lower than a certain speed. It may be determined that the vehicle has started parking.
- the notification unit 32 includes a display device of a navigation system, a warning lamp, and a speaker provided at a position where the driver can visually recognize.
- the notification unit 32 provides various types of information to the driver based on the signal from the control unit 25.
- the receiving unit 13 includes four receiving antennas 13a to 13d.
- the four receiving antennas 13a to 13d are located at the same distance from the center point of the power transmitting coil 12 around the power transmitting coil 12, and each of the receiving antennas 13a to 13d is located with respect to the center point of the power transmitting coil 12.
- the transmission unit 23 includes one transmission antenna.
- the transmitting antenna is provided at a position that is the center point of the power receiving coil 22.
- the power transmission coil 12 and the receiving unit 13 are provided in the ground side unit 100, their positions do not change.
- the power reception coil 22 and the transmission unit 23 are provided in the vehicle 200, the relative positions of the power transmission coil 12 and the reception unit 13 change according to the position of the vehicle 200.
- the control unit 15 of the ground side unit 100 determines whether or not the alignment is completed from the information as described above.
- the transmission unit 23 is provided in the ground unit 100
- the reception unit 13 is provided in the non-contact power supply apparatus 201
- the control unit 25 of the non-contact power supply apparatus 201 determines whether or not the alignment is completed. It may be.
- the parking start determination unit 25d determines that the vehicle 200 has started parking based on, for example, GPS information and map information.
- the charging control unit 25c of the vehicle 200 activates the wireless communication unit 24 and transmits an activation signal to the ground side unit 100. Thereby, the ground side unit 100 will start.
- control unit 25 of the vehicle 200 transmits a signal for establishing a link from the wireless communication unit 24 to the wireless communication unit 14. Then, the control unit 15 of the ground-side unit 100 sends back a signal indicating that the signal has been received from the wireless communication unit 14 to the wireless communication unit 24. Thereby, a link is established between the wireless communication unit 14 and the wireless communication unit 24.
- control unit 25 of the vehicle 200 transmits the ID of the vehicle 200 to the control unit 15 of the non-contact power feeding apparatus 100 through communication between the wireless communication unit 14 and the wireless communication unit 24.
- the control unit 15 of the contactless power supply device 100 performs ID authentication by determining whether or not the ID transmitted from the vehicle 200 side matches the ID registered in advance.
- the ID of the vehicle 200 that can be supplied with power is registered in the contactless power supply apparatus 100 in advance. For this reason, only the vehicle 200 that matches the registered ID can be powered by the above ID authentication.
- the non-contact charging system 1 is not limited to this, and may be without ID authentication.
- the remaining capacity detection unit 25a detects the remaining capacity of the battery 28 during the period during which the ID authentication is performed. Then, the charging start determination unit 25b determines whether or not to start the charging operation to the battery 28 based on whether the remaining capacity detected by the remaining capacity detection unit 25a is equal to or less than the charging start threshold. Next, when the charging start determination unit 25b determines that the charging operation is to be started, the charging control unit 25c turns on the relay unit 27 and controls the wireless communication unit 24 to receive power to the ground unit 100. Send a control signal to the effect.
- control signal is received by the wireless communication unit 14 of the ground side unit 100, and the control unit 15 waits for the alignment of the coils, that is, waits for the parking to be completed, and controls the power control unit 11 to Then, high frequency power is applied to the power transmission coil 12.
- the user does not need to operate the charging start switch and the like, and by parking the vehicle 200 in the parking space.
- the battery 28 can be charged. Therefore, the convenience can be further improved.
- the ground side unit 100 is activated. And the control part 15 of a ground side unit performs a failure diagnosis between parking start and completion.
- the control unit 15 transmits information to the non-contact power feeding apparatus 201 and notifies the user via the notification unit 32 of the information.
- the control unit 15 of the ground side unit 100 guides the vehicle 200 to a predetermined parking position in the parking space during a period from the start to the completion of parking.
- control unit 15 sends the information on the moving direction of the vehicle 200 to the non-contact power feeding device 201 so that the coils can be accurately aligned based on the intensity of the electromagnetic wave detected by the receiving unit 13. Send. Thereby, the behavior of the vehicle until parking is completed can be supported, and the convenience can be improved.
- the charging start determination unit 25b varies the charging start threshold according to the usage state of the battery 28 during traveling before the vehicle 200 is parked.
- the usage status of the battery 28 is, for example, whether or not the air-conditioning equipment was used and how much the power consumption was.
- the charge start determination unit 25b varies the charge start threshold based on such information. As a result, for example, for the battery 28 whose deterioration in battery 28 has progressed and the power consumption is bad, the charging start threshold is lowered to reduce the possibility of power shortage, or air conditioning equipment is used before charging, and future driving For the vehicle 200 in which the power consumption is determined not to be good, the charge start threshold can be lowered to reduce the possibility of power shortage. In addition, when the battery 28 is new, the power consumption is predicted to be high, so the charging start threshold value may be increased.
- the charging control unit 25c ends the charging operation.
- the remaining capacity of the battery 28 at this time may be detected by the remaining capacity detection unit 25a, or may be a value obtained by adding the amount of charge to the remaining capacity before parking.
- the charging start threshold value and the charging end threshold value are different from each other, hysteresis is provided for both of them, and it is possible to prevent a situation in which charging ends immediately after starting charging.
- the remaining capacity detection unit 25a detects the remaining capacity every predetermined period. Then, the charge start determination unit 25b compares the remaining capacity detected every predetermined period with the charge start threshold value, and determines whether or not to start the charging operation. As a result of the determination, when it is determined that the charging operation is started, the charging control unit 25c starts the charging operation in the same manner as described above. Thereby, in 1st Embodiment, it can respond to the fall of the remaining capacity by natural discharge.
- the control unit 25 of the non-contact power supply apparatus 201 determines whether parking is started (S1). In this process, the control unit 15 determines, for example, whether the vehicle 200 is approaching the ground-side unit 100, whether the shift position is moved to the reverse (rear) position, and whether the vehicle speed is equal to or lower than a certain speed. Determine whether parking has started. Note that the method for determining whether or not parking has started is not limited to this.
- step S1 When it is determined that parking is not started (S1: NO), the process of step S1 is repeated until it is determined that parking is started. On the other hand, when it is determined that parking has started (S1: YES), the charging control unit 25c transmits an activation signal to the ground unit 100 through the wireless communication unit 24 (S2). As a result, the ground side unit is activated. And in the ground side unit 100, processes, such as failure diagnosis and alignment guidance, are performed.
- the non-contact power supply apparatus 201 receives a signal to that effect and notifies the user via the notification unit 32. And the process shown in FIG. 3 will be complete
- the remaining capacity detector 25a After transmitting the activation signal, the remaining capacity detector 25a detects the remaining capacity of the battery 28 (S3). Next, the charging start determination unit 25b varies the charging start threshold according to the usage state of the battery 28 during traveling before the vehicle 200 is parked (S4).
- the charging start determination unit 25b determines whether or not the remaining capacity detected in step S3 is equal to or less than the charging start threshold changed in step S4 (S5). When it is determined that the remaining capacity is not less than or equal to the charging start threshold (S5: NO), the process illustrated in FIG. 3 ends.
- the control unit 25 determines whether the parking is completed (S6). Whether the parking is completed is determined based on the electromagnetic wave intensity received by the receiving unit 13 by the control unit 15 of the ground-side unit 100, for example.
- the control unit 15 transmits a signal to that effect to the non-contact power supply apparatus 201 through the wireless communication unit 14.
- the control unit 25 of the non-contact power supply apparatus 201 determines that parking is completed when this signal is received, and determines that parking is not completed when it is not received.
- step S6 If it is determined that parking is not completed (S6: NO), the process of step S6 is repeated until it is determined that parking is completed.
- the charging control unit 25c starts the charging operation (S7). Thereby, the battery 28 is charged.
- the remaining capacity detection unit 25a detects the remaining capacity of the battery 28 (S8). And the charge control part 25c judges whether the remaining capacity detected in step S8 is more than a charge completion threshold value (S9).
- the charging end threshold value may also be changed according to the usage status of the battery 28 detected in step S4, similarly to the charging start threshold value.
- step S9 If it is determined that the remaining capacity is not equal to or greater than the charging end threshold (S9: NO), the process proceeds to step S8. On the other hand, when it is determined that the remaining capacity is equal to or greater than the charging end threshold (S9: YES), the charging control unit 25c ends the charging operation, and the process illustrated in FIG. 3 ends.
- the control unit 25 determines whether or not a predetermined period has elapsed (S11).
- the start point of the predetermined period may be any point of steps S1 to S10 shown in FIG. 3, or may be a point after step S10.
- step s11 When it is determined that the predetermined period has not elapsed (S11: NO), the process of step s11 is repeated until it is determined that the predetermined period has elapsed. On the other hand, when it is determined that the predetermined period has elapsed (S11: YES), the remaining capacity detection unit 25a detects the remaining capacity of the battery 28 (S12). Next, the charging start determination unit 25b determines whether or not the remaining capacity detected in step S12 is equal to or less than a charging start threshold (S13). Note that the charging start threshold value in the process of step S13 may be changed according to the usage state of the battery 28 as shown in FIG.
- the control unit 25 transmits an activation signal to the ground side unit 100 through the wireless communication unit 24 (S14).
- the charging control unit 25c starts a charging operation (S15). Thereby, the battery 28 is charged.
- the remaining capacity detection unit 25a detects the remaining capacity of the battery 28 (S16). Then, the charge control unit 25c determines whether or not the remaining capacity detected in step S8 is equal to or greater than a charge end threshold (S17). Note that the charging end threshold value may also be changed according to the usage status of the battery 28 detected in step S4, similarly to the charging start threshold value.
- step S17: NO If it is determined that the remaining capacity is not equal to or greater than the charging end threshold (S17: NO), the process proceeds to step S16. On the other hand, when it is determined that the remaining capacity is equal to or greater than the charging end threshold (S17: YES), the charging control unit 25c ends the charging operation, and the process illustrated in FIG. 4 ends.
- the activation signal is transmitted when it is determined that the remaining capacity is equal to or less than the charging start threshold (S13: YES).
- the ground side unit 100 does not necessarily start every predetermined period, and may be configured to suppress power consumption. In this case, it is because the ground side unit 100 can perform a failure diagnosis using the period until charging operation starts.
- the contactless power supply device 201 starts the charging operation when the remaining capacity of the battery 28 of the vehicle 200 is equal to or less than the charging start threshold. For this reason, the user does not need to operate a charging start switch or the like, and can charge the battery 28 by parking the vehicle 200 in the parking space. Therefore, the convenience can be further improved.
- Charging start determination unit 25b varies the charging start threshold according to the usage state of battery 28 when parked vehicle 200 travels before parking. For this reason, for example, with respect to the battery 28 in which the deterioration of the battery 28 has progressed and the power consumption is poor, the charging start threshold value can be lowered to reduce the possibility of power shortage. For a vehicle 200 that uses an air conditioner before charging and is predicted to have low power consumption in future travel, the charging start threshold can be lowered to reduce the possibility of power shortage.
- the remaining capacity detection unit 25a detects the remaining capacity every predetermined period, and the charging start determination unit 25b compares the detected remaining capacity with the charging start threshold value. Then, it is determined whether or not to start the charging operation. For this reason, for example, when the vehicle 200 is parked in a parking space for a long period of time, the charging operation can be started with respect to a decrease in the remaining capacity due to natural discharge.
- the charging control unit 25c transmits a signal to the ground side unit 100 to activate the ground side unit 100. For this reason, the ground side unit 100 can perform a failure diagnosis of the ground side unit 100 or guide to the parking space between the start of parking and completion.
- the charging control unit 25c ends the charging operation. For this reason, hysteresis is provided between the charge start threshold value and the charge end threshold value, and it is possible to prevent a situation where charging immediately ends after the start of charging.
- non-contact power feeding device according to the second embodiment of the present invention will be described.
- the non-contact power feeding apparatus according to the second embodiment is partially different in configuration and processing operation from the first embodiment.
- differences from the first embodiment will be described.
- the activation signal is transmitted to the ground unit 100 when it is determined that parking is started.
- the activation signal is transmitted to the ground unit 100 when it is determined that the parking is completed.
- the ground-side unit 100 does not start until the parking is completed until the parking is completed, and power consumption can be suppressed as compared with the first embodiment.
- the non-contact power supply apparatus 202 further includes a parking completion determination unit (parking completion determination unit) 25 e in the control unit 25.
- the parking completion determination unit 25e determines whether or not the vehicle 200 has completed parking.
- the parking completion determination unit 25e receives, for example, information on the electromagnetic wave intensity received by the reception unit 13 of the ground-side unit 100 through the wireless communication unit 24, and determines whether parking is completed based on the electromagnetic wave intensity.
- the charging control unit 25c transmits a signal to the ground side unit 100 to activate the ground side unit 100 when the parking completion determination unit 25e determines that the parking is completed. Thereby, the ground side unit 100 will not start until parking is completed, and it can suppress consumption of standby power.
- steps S21 to S24 and S27 to S30 in FIG. 6 are the same as the processes shown in steps S1, S3 to S5, and S7 to S10 in FIG.
- the parking completion determination unit 25e determines whether parking is completed (S25). Whether or not parking is completed is determined based on the intensity of the electromagnetic wave received by the receiving unit 13. When it is determined that parking is not completed (S25: NO), the process of step S25 is repeated until it is determined that parking is completed.
- the charging control unit 25c transmits an activation signal to the ground side unit 100 through the wireless communication unit 24 (S26). Thereby, the ground side unit 100 will start. Thereafter, the processes of steps S27 to S30 are executed, and the process shown in FIG. 6 is ended.
- the process during parking is the same as that shown in FIG.
- the non-contact power feeding apparatus 202 it is possible to further improve convenience as in the first embodiment.
- the possibility of power shortage can be reduced by lowering the charging start threshold.
- the ground side unit 100 when it is determined that parking is completed, a signal is transmitted to the ground side unit 100 to activate the ground side unit 100. For this reason, the ground unit 100 is not activated until parking is completed, and power consumption can be suppressed.
- the remaining capacity detection unit 25a, the charge start determination unit 25b, the charge control unit 25c, the parking start determination unit 25d, and the parking completion determination unit 25e are the contactless power supply device on the vehicle 200 side. (201, 202).
- a non-contact power feeding device (201, 202) including these components (25a, 25b, 25c, 25d, 25e) may be provided in the ground unit 100.
- these constituent members (25a, 25b, 25c, 25d, 25e) may be provided separately on the vehicle 200 side and the ground unit 100 side. In these examples, the same effects as those of the first and second embodiments can be achieved.
- the usage status of the battery 28 is not limited to the above, and may be the degree of deterioration, the temperature of the battery 28, or other information as long as it is information related to the usage of the battery 28. May be.
- Non-contact power supply system 100 Ground side unit (Non-contact power supply) DESCRIPTION OF SYMBOLS 12 Power transmission coil 200 Vehicle 201,202 Non-contact electric power feeder 22 Power receiving coil 25a Remaining capacity detection part 25b Charging start judgment part 25c Charging control part 25d Parking start judgment part 25e Parking completion judgment part
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Abstract
Description
100 地上側ユニット(非接触給電装置)
12 送電コイル
200 車両
201、202 非接触給電装置
22 受電コイル
25a 残容量検出部
25b 充電開始判断部
25c 充電制御部
25d 駐車開始判断部
25e 駐車完了判断部
Claims (10)
- 受電コイルを備え、当該受電コイルと地上に設けられた地上側ユニットが有する送電コイルとの磁気的結合により非接触で送受電を行う非接触給電装置であって、
前記送電コイルが設けられた駐車スペースに対して駐車する前記車両が備えるバッテリの残容量を検出する残容量検出部と、
前記残容量検出部により検出された前記バッテリの残容量が充電開始閾値以下であるかに基づいて前記バッテリへの充電動作を開始するか否かを判断する充電開始判断部と、
前記充電開始判断部により前記充電動作を開始すると判断された場合に、前記充電動作を開始する充電制御部と、
を備えることを特徴とする非接触給電装置。 - 前記充電開始判断部は、前記車両が駐車する前の走行時における前記バッテリの使用状況に応じて、前記充電開始閾値を変動させる
ことを特徴とする請求項1に記載の非接触給電装置。 - 前記車両が駐車スペースに駐車されている場合、前記残容量検出部は、所定期間毎に残容量を検出し、前記充電開始判断部は、前記所定期間毎に検出された残容量と前記充電開始閾値とを比較して、前記充電動作を開始するか否かを判断する
ことを特徴とする請求項1又は請求項2のいずれかに記載の非接触給電装置。 - 前記車両の駐車が完了したか否かを判断する駐車完了判断部を更に備え、
前記充電制御部は、前記駐車完了判断部により駐車が完了したと判断された場合に、前記地上側ユニットに信号を送信して当該地上側ユニットを起動する
ことを特徴とする請求項1~請求項3のいずれか一項に記載の非接触給電装置。 - 前記車両が駐車を開始したか否かを判断する駐車開始判断部を更に備え、
前記充電制御部は、前記駐車開始判断部により駐車を開始したと判断された場合に、前記地上側ユニットに信号を送信して当該地上側ユニットを起動する
ことを特徴とする請求項1~請求項3のいずれか一項に記載の非接触給電装置。 - 前記充電制御部は、前記バッテリの残容量が、前記充電開始閾値と異なる充電終了閾値以上となった場合、前記充電動作を終了する
ことを特徴とする請求項1~請求項5のいずれか一項に記載の非接触給電装置。 - 送電コイルを備え、当該送電コイルと車両に設けられた車両側ユニットが有する受電コイルとの磁気的結合により非接触で送受電を行う非接触給電装置であって、
前記送電コイルが設けられた駐車スペースに対して駐車する前記車両が備えるバッテリの残容量を検出する残容量検出部と、
前記残容量検出部により検出された前記バッテリの残容量が充電開始閾値以下であるかに基づいて前記バッテリへの充電動作を開始するか否かを判断する充電開始判断部と、
前記充電開始判断部により前記充電動作を開始すると判断された場合に、前記充電動作を開始する充電制御部と、
を備えることを特徴とする非接触給電装置。 - 受電コイルを有した車両側ユニットと、前記受電コイルに対して磁気的結合により非接触で送電を行う送電コイルを有した地上側ユニットとを備える非接触給電システムであって、
前記送電コイルが設けられた駐車スペースに対して駐車する前記車両が備えるバッテリの残容量を検出する残容量検出部と、
前記残容量検出部により検出された前記バッテリの残容量が充電開始閾値以下であるかに基づいて前記バッテリへの充電動作を開始するか否かを判断する充電開始判断部と、
前記充電開始判断部により前記充電動作を開始すると判断された場合に、前記充電動作を開始する充電制御部と、
を備えることを特徴とする非接触給電システム。 - 車両に設けられた受電コイルと地上に設けられた送電コイルとの磁気的結合により非接触で送受電を行う非接触給電方法であって、
前記送電コイルが設けられた駐車スペースに対して駐車する前記車両が備えるバッテリの残容量を検出し、
検出された前記バッテリの残容量が充電開始閾値以下であるかに基づいて前記バッテリへの充電動作を開始するか否かを判断し、
前記充電動作を開始すると判断された場合に、前記充電動作を開始する
ことを特徴とする非接触給電方法。 - 受電コイルを備え、当該受電コイルと地上に設けられた地上側ユニットが有する送電コイルとの磁気的結合により非接触で送受電を行う非接触給電装置であって、
前記送電コイルが設けられた駐車スペースに対して駐車する前記車両が備えるバッテリの残容量を検出する残容量検出手段と、
前記残容量検出手段により検出された前記バッテリの残容量が充電開始閾値以下であるかに基づいて前記バッテリへの充電動作を開始するか否かを判断する充電開始判断手段と、
前記充電開始判断手段により前記充電動作を開始すると判断された場合に、前記充電動作を開始する充電制御手段と、
を備えることを特徴とする非接触給電装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380061306.1A CN104813565B (zh) | 2012-12-03 | 2013-11-14 | 非接触供电装置、非接触供电系统以及非接触供电方法 |
| JP2014551017A JP6090333B2 (ja) | 2012-12-03 | 2013-11-14 | 非接触給電装置、非接触給電システム及び非接触給電方法 |
| US14/649,097 US9446675B2 (en) | 2012-12-03 | 2013-11-14 | Non-contact power supply apparatus, non-contact power supply system, and non-contact power supply method |
| EP13861279.1A EP2928046B1 (en) | 2012-12-03 | 2013-11-14 | Non-contact power supply apparatus, non-contact power supply system, and non-contact power supply method |
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| JP2012263963 | 2012-12-03 | ||
| JP2012-263963 | 2012-12-03 |
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|---|---|---|---|
| PCT/JP2013/080773 Ceased WO2014087823A1 (ja) | 2012-12-03 | 2013-11-14 | 非接触給電装置、非接触給電システム及び非接触給電方法 |
Country Status (5)
| Country | Link |
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| US (1) | US9446675B2 (ja) |
| EP (1) | EP2928046B1 (ja) |
| JP (1) | JP6090333B2 (ja) |
| CN (1) | CN104813565B (ja) |
| WO (1) | WO2014087823A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016077140A1 (en) * | 2014-11-14 | 2016-05-19 | Motorola Solutions, Inc. | Method and apparatus for efficiency compliance in wireless charging systems |
| CN110492622A (zh) * | 2019-07-15 | 2019-11-22 | 湖北工业大学 | 电动汽车不停车无线充电系统及其控制方法 |
| US20220219920A1 (en) * | 2019-05-23 | 2022-07-14 | Optima consumer GmbH | Power supply module for a transport system, function unit, system, use, and arrangement |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2186799A (en) * | 1998-02-05 | 1999-08-23 | Hamamatsu Photonics K.K. | Optical part |
| GB2518128B (en) * | 2013-06-20 | 2021-02-10 | Nokia Technologies Oy | Charging rechargeable apparatus |
| CN106560978B (zh) * | 2015-10-02 | 2021-06-29 | 松下知识产权经营株式会社 | 无线电力传输系统 |
| CN106740178A (zh) * | 2016-11-30 | 2017-05-31 | 北京国网普瑞特高压输电技术有限公司 | 一种电动汽车路段无线充电控制方法 |
| CA3067176C (en) * | 2017-06-13 | 2023-04-04 | Nissan Motor Co., Ltd. | Method for controlling non-contact electric power supply system, and non-contact electric power supply system |
| JP7117540B2 (ja) * | 2018-07-31 | 2022-08-15 | パナソニックIpマネジメント株式会社 | 受電装置および水中給電システム |
| JP7200623B2 (ja) * | 2018-11-27 | 2023-01-10 | 株式会社アイシン | 車両誘導システム、車上装置、および地上装置 |
| JP2021175352A (ja) * | 2020-04-30 | 2021-11-01 | Necプラットフォームズ株式会社 | バッテリー残量管理方法、バッテリー残量管理装置、バッテリー、電子機器及びプログラム |
| JP7435399B2 (ja) * | 2020-10-14 | 2024-02-21 | トヨタ自動車株式会社 | 災害地特定装置、災害地特定プログラム及び災害地特定システム |
| US12304340B2 (en) | 2020-12-17 | 2025-05-20 | Hyundai Motor Company | Distance estimation method for fine positioning for electric vehicle wireless power transfer, and distance estimation apparatus using same |
| FR3135838B1 (fr) | 2022-05-19 | 2024-06-28 | Gulplug | Procédé et système de connexion électrique automatique entre deux connecteurs |
| KR102753163B1 (ko) * | 2022-12-19 | 2025-01-13 | 에스케이텔레콤 주식회사 | 차량 무선 충전 방법 및 이를 지원하는 시스템 |
| TWI852727B (zh) * | 2023-08-15 | 2024-08-11 | 國立高雄科技大學 | 電動車之移動式充電裝置及其智慧供電儲能站 |
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- 2013-11-14 EP EP13861279.1A patent/EP2928046B1/en active Active
- 2013-11-14 CN CN201380061306.1A patent/CN104813565B/zh active Active
- 2013-11-14 WO PCT/JP2013/080773 patent/WO2014087823A1/ja not_active Ceased
- 2013-11-14 JP JP2014551017A patent/JP6090333B2/ja active Active
- 2013-11-14 US US14/649,097 patent/US9446675B2/en active Active
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| JPH08126120A (ja) * | 1994-10-19 | 1996-05-17 | Yazaki Corp | 自動車の自動充電システム |
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| JP2010183804A (ja) * | 2009-02-09 | 2010-08-19 | Maspro Denkoh Corp | 移動体の電力供給システム,及び,移動体 |
| WO2011046223A1 (ja) * | 2009-10-14 | 2011-04-21 | Udトラックス株式会社 | 蓄電装置 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016077140A1 (en) * | 2014-11-14 | 2016-05-19 | Motorola Solutions, Inc. | Method and apparatus for efficiency compliance in wireless charging systems |
| US20220219920A1 (en) * | 2019-05-23 | 2022-07-14 | Optima consumer GmbH | Power supply module for a transport system, function unit, system, use, and arrangement |
| CN110492622A (zh) * | 2019-07-15 | 2019-11-22 | 湖北工业大学 | 电动汽车不停车无线充电系统及其控制方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2928046A1 (en) | 2015-10-07 |
| JP6090333B2 (ja) | 2017-03-08 |
| CN104813565A (zh) | 2015-07-29 |
| US20150328995A1 (en) | 2015-11-19 |
| US9446675B2 (en) | 2016-09-20 |
| EP2928046A4 (en) | 2016-03-02 |
| JPWO2014087823A1 (ja) | 2017-01-05 |
| CN104813565B (zh) | 2016-08-17 |
| EP2928046B1 (en) | 2017-10-25 |
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