JP5218576B2 - Non-contact power supply control device and non-contact power supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact power supply control device and non-contact power supply system, capable of suppressing an adverse effect of electromagnetic field on a human being or an animal and preventing an increase of time required for vehicle charging when implementing non-contact power feeding into a vehicle. <P>SOLUTION: The non-contact power supply control device controls power feeding for feeding electric power from a ground-side power feeding section 111 installed outside a vehicle 1 to a vehicle-side reception section 11 installed on the vehicle 1 in a non-contact manner. The non-contact power supply control device, limits feeding power supplied to the vehicle-side reception section 11 as compared to in the case that the presence of an organism is not detected, when the presence of an organism is detected in the vicinity to the ground-side power feeding section 111 during power feeding operation into the vehicle-side reception section 11. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a non-contact power supply control device that supplies electric power to a battery of a vehicle from an external power source in a non-contact manner and a non-contact power supply system including the control device.

  In recent years, electric vehicles such as electric vehicles and hybrid vehicles have attracted attention as environmentally friendly vehicles. These electric vehicles are equipped with a battery that enables charging of electric power for traveling from an external power source. As a method of supplying power for charging, a plug-in type power supply method in which a power supply port on the power supply side and a charging port of a vehicle are connected with a cable, and a non-contact type power supply method without using a cable are known. .

  As a conventional technique related to a non-contact power supply method, for example, there is a non-contact power supply system described in Patent Document 1. In this prior art, power transmission is performed via an electromagnetic field between a primary side coil and a secondary side coil. In the non-contact power supply system of Patent Document 1, power from an AC power source installed in an external facility is converted into high-frequency power by a high-frequency power driver and then supplied to the primary coil. And the secondary side coil arrange | positioned by the vehicle body lower part receives the electric power feeding from the opposing primary side coil, when an electric current flows by electromagnetic coupling.

JP 2010-93957 A

  In the above prior art, power is transmitted through the electromagnetic field between the primary coil disposed near the ground as described above and the secondary coil disposed in the lower part of the vehicle body. When a person is present near the side coil or the secondary coil, there is a problem that the existing human body is affected by the electromagnetic field.

  Specifically, in the above prior art, when the vehicle door is locked, a charging start request signal is transmitted to the vehicle external device to start the charging operation. When the charging operation starts at such timing, there is a possibility that a person is still in the vicinity of the vehicle, and the human body can be affected by the electromagnetic field.

  Therefore, the present invention has been made in view of the above problems, and its object is to reduce the influence of an electromagnetic field on a human body, an animal, etc. when performing non-contact power feeding to the vehicle, and to charge the vehicle. An object of the present invention is to provide a non-contact power supply control device capable of preventing the lengthening of time and a non-contact power supply system including the non-contact power supply control device.

In order to achieve the above object, the present invention employs the following technical means. That is, the first aspect of the present invention is not applied to the vehicle-side power receiving unit (11) provided in the vehicle (1) from the ground-side power supply unit (111) provided outside the vehicle (1) that travels using the stored electric power. It is an invention related to a non-contact power supply control device that controls power supply that sends power by contact,
When the presence of a living body is detected in the vicinity of the ground-side power feeding section (111) during the power feeding operation to the vehicle-side power receiving section (11), the presence of the living body is detected as the power supplied to the vehicle-side power receiving section (11). It is limited compared to the power supply operation when it is not .
When the time during which the power supply power is limited becomes longer than the set time, a notification is given to the outside, and the set time is required when the amount of power stored in the vehicle and the end of charging of the vehicle are complete. It is determined based on the difference from the amount of stored electricity .

According to the first aspect of the present invention, when a living body such as a human body is detected around the ground-side power supply unit in which an electromagnetic field is generated during the power supply operation, the power supply is reduced as compared to the case where it is not detected. Implement power supply operation to be restricted. Thus, by limiting the power supply to such an extent that the electromagnetic field does not adversely affect the living body, it is possible to charge the vehicle with traveling power while suppressing the influence on the living body without stopping the power supply. . Therefore, when performing non-contact power feeding to the vehicle, it is possible to reduce the influence of the electromagnetic field on the human body, animals, etc., and to prevent the vehicle charging time from being prolonged.

Further , according to the first aspect of the present invention, when the time of power limitation is prolonged, a notification is made so that the state in which the living body is approaching can be quickly resolved. After canceling in this way, it is also possible to carry out a power feeding operation with normal power, so that the time required for charging the power storage device or the like of the vehicle can be shortened.
According to the first aspect of the present invention, the set time until notification to the outside is determined based on the difference between the current charged amount stored in the vehicle and the charged amount required at the end of charging. By determining the set time in this way, it is possible to quickly perform the time until the start of notification to the outside according to the magnitude of the difference in the amount of stored electricity, and power supply operation without performing power supply limitation A lot of time can be secured. Therefore, it is possible to perform control for suppressing the influence of the electromagnetic field on the living body and realizing the end of charging the vehicle at an early stage.

According to a second aspect of the present invention, the means for notifying to the outside is a sound generating means (13) possessed by the vehicle or an illumination means (13) possessed by the vehicle. According to the present invention, by utilizing the sound generation means and lighting means of the vehicle, the vehicle occupant and the surrounding people are urged to move away from the living body that can be affected by the electromagnetic field effectively and immediately. it can.

According to claim 3 , there is a power supply operation request for performing the power supply operation, and when the presence of a living body is detected in the vicinity of the ground-side power supply unit before the power supply operation is performed, the power supply operation is not started. And According to the present invention, when power supply is not performed, for example, when a living body is detected while power supply is stopped, the power supply operation is not started even when a power supply operation request is made. Thereby, since the power supply stop state is maintained against the power supply request, the influence of the electromagnetic field can be reduced.

The invention of the non-contact power supply system according to claim 4 detects the presence of a living body in the vicinity of the non-contact power supply control device (9) according to any one of claims 1 to 3 and the ground-side power supply unit. And a living body detecting means (6, 8, 7).

  According to the present invention, during a power feeding operation, when a living body such as a human body is detected around the ground-side power feeding unit in which a magnetic field is generated, the power feeding operation is performed to limit the power feeding power compared to the case where it is not detected. Can be provided. Therefore, when performing non-contact power feeding to the vehicle, it is possible to charge traveling power to the vehicle while suppressing adverse effects on the living body, so that the influence of the electromagnetic field on the human body, animals, etc. can be reduced, and the vehicle It is possible to prevent prolonged charging time.

According to a fifth aspect of the present invention, the living body detection means includes a camera (61) that is mounted on a vehicle and photographs the periphery of the vehicle. According to the present invention, the living body detection utilizing the in-vehicle camera of the vehicle enables direct and effective living body detection by imaging, and non-contact that can reduce the increase in the number of parts for the vehicle equipped with the camera. A power supply system can be provided.

According to a sixth aspect of the present invention, the living body detecting means includes sensors (71 to 74) mounted on the vehicle and detecting obstacles existing around the vehicle. According to the present invention, the living body detection using the sensor of the vehicle enables the living body detection according to the detection range of the sensor, and the contactless power feeding that can reduce the increase in the number of parts for the vehicle equipped with the sensor. Can provide a system.

According to claim 7 , the living body detection means is a receiver (81) that wirelessly communicates with a portable transmitter (112) having a unique management number capable of opening and closing a vehicle door, and the portable transmitter (112) is preset. And a receiver (81) for receiving a unique management number when it is within a detection range from the door of the vehicle.

  According to the present invention, before the person holding the smart entry key touches the door or the like to unlock or lock the door, the person approaches the vehicle by detecting the presence of the person around the vehicle. Can be detected. Therefore, it is possible to carry out a power feeding operation with power limitation in a state where the living body is away from the side of the vehicle to some extent. In addition, biometric detection using a portable transmitter such as a smart entry key that the vehicle has enables biometric detection according to the detection range on the receiver side, and adopts door opening / closing command means by such portable transmitter A non-contact power feeding system that can reduce an increase in the number of parts can be provided for a vehicle that performs the above operation.

According to claim 8 , the living body detection means includes: a vehicle position detection means (9) for detecting the position of the vehicle; and a portable device (120) for detecting the position relative to the vehicle when present outside the vehicle. It is characterized by comprising. According to the present invention, it is detected that a person carrying a mobile device is present around the vehicle by biometric detection utilizing a position detection function provided in a mobile device such as a mobile phone and a position detection function that detects a vehicle position. Thus, it is possible to detect that the person has approached the vehicle. Therefore, it is possible to carry out a power feeding operation with power limitation in a state where the living body is away from the side of the vehicle to some extent.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means of embodiment mentioned later, and does not limit the technical scope of this invention.

It is a block diagram of the non-contact electric power feeding system which concerns on 1st Embodiment to which this invention is applied. 1 is a configuration diagram showing a configuration related to a non-contact power feeding system in a vehicle 1. It is a vehicle top view for demonstrating the imaging | photography range of the vehicle-mounted camera used for 1st biometric detection. In 1st Embodiment, it is the main flowchart which showed the process sequence performed in the case of the charge driving | operation of a vehicle. It is a flowchart which shows the 1st biological body detection control implemented in the case of a biological body detection by a non-contact electric power feeding control apparatus. It is the time chart which showed the change of the electric power supplied to the vehicle according to the result of the biometric determination in a charge driving | operation, and the change of SOC of an electrical storage apparatus. It is a vehicle top view for demonstrating the detection range of the corner sensor used for a 2nd biological body detection. It is a flowchart which shows the 2nd biological body detection control implemented in the case of a biological body detection by a non-contact electric power feeding control apparatus. It is a vehicle top view for demonstrating the detection range of the vehicle side transmitter / receiver of the smart entry used for 3rd biometric detection. It is a flowchart which shows the 3rd biological body detection control implemented in the case of a biological body detection by a non-contact electric power feeding control apparatus. It is a flowchart which shows the 4th biological body detection control which a non-contact electric power feeding control apparatus implements in the case of biological body detection.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also combinations of the embodiments even if they are not specified, unless there is a particular problem with the combination. Is also possible.

(First embodiment)
The non-contact power supply control device according to the present invention can be applied when charging an in-vehicle battery such as an electric vehicle (EV) or a plug-in hybrid vehicle (PHV). FIG. 1 is a configuration diagram of a non-contact power feeding system according to a first embodiment to which the present invention is applied. FIG. 2 is a configuration diagram showing a configuration related to the non-contact power feeding system in the vehicle 1. In the first embodiment, an example will be described in which the vehicle control ECU 9 provided in the vehicle 1 performs its function as an integrated ECU in cooperation with other ECUs.

  As shown in FIG. 1, the system of the first embodiment is a facility-side power supply included in a ground-side power supply facility that is electrically connected to a system power supply supplied mainly through a switchboard 102 such as a house 100. From an electric appliance, a vehicle-side charging device mounted on the vehicle 1, a ground-side power feeding unit 111 including a power transmission coil that transmits power without contact, and a power receiving coil that receives power from the ground-side power feeding unit 111 without contact. A vehicle-side power receiving unit 11.

  The power feeder includes a control circuit 110 including a rectifier circuit, a high-frequency inverter, a communication device 112, and the like, and operates when power is supplied to the vehicle-side power receiving unit 11. The vehicle-side charging device includes a control circuit 10 of the vehicle 1, a power storage device 30, a charger ECU 5, a communication device 12, and the like. The ground-side power feeding unit 111 is installed or embedded in a parking space defined in the parking facility, and is configured to generate a magnetic field by predetermined energization. The ground-side power feeding unit 111 detects the approach of the vehicle into the parking space and transfers power in a non-contact manner with the vehicle-side power receiving unit 11 provided on the vehicle side. The non-contact power feeding system is a non-contact power transmission / reception in which power is transmitted / received by, for example, electromagnetic induction or magnetic resonance, in a magnetically coupled state between a power storage device 30 including a secondary battery and a system power supply outside the vehicle. System.

  As shown in FIG. 2, 1st Embodiment is an example which applied the non-contact electric power feeding control apparatus which concerns on this invention to a parallel series hybrid vehicle. 1 is a component provided in the vehicle 1, and the vehicle control ECU 9 or the charger ECU 5 connects the power storage device 30 to the power storage device 30 via the control circuit 10, the power storage device ECU 3, and the like. Control charging. In addition, power from a system power supply (commercial power supply) or the like is supplied to the outlet 101 on the house 100 side connected to the plug 113 connected to the power feeder.

  Further, the outlet 101 can be connected to a plug at one end of a power supply cable having plugs at both ends, and the plug at the other end can be connected to a power receiving port provided in the vehicle 1. According to this, the vehicle 1 is a vehicle capable of implementing a wired contact power feeding method in addition to the non-contact power feeding method.

  The power storage device 30 is a high-voltage battery that includes a plurality of secondary batteries and sets a terminal voltage to a predetermined high voltage, and is connected to the motor generators 41 and 42 via the boost converter 31 and the inverters 43 and 44. Controlled by power storage device ECU3. The power storage device 30 supplies power to the motor when starting, accelerating, etc., and stores the regenerated power generated during deceleration.

  The power storage device 30 is connected to a step-up converter 31, a step-down converter 32, loads 33 and 34 (such as a compressor that drives a refrigerant in an air-conditioning refrigeration cycle), and a control circuit 10. Boost converter 31 boosts the voltage of power storage device 30 to a predetermined voltage (for example, DC288V to a maximum of 650V). The boosted voltage is used to drive the first motor generator 41 and the second motor generator 42, and both high output and low power loss can be achieved. Step-down converter 32 steps down the voltage of power storage device 30 to a predetermined voltage (for example, DC288V to 12V) and applies it to load 33 such as an auxiliary battery, navigation device, or the like.

  The first inverter 43 and the second inverter 44 convert the high-voltage direct current boosted by the boost converter 31 into alternating current for supplying the first motor generator 41 and the second motor generator 42, respectively. Each inverter 43, 44 also functions to convert an alternating current generated by each motor generator 41, 42 into a direct current.

  The vehicle control ECU 9 is configured to be able to communicate with an engine ECU 2, a motor generator ECU 4, a power storage device ECU 3, a charger ECU 5, an image processing ECU 6, a corner sensor ECU 7, a smart ECU 8, and the like.

  Data is input to the image processing ECU 6 from a camera 61 such as a CCD camera that captures an image around the vehicle 1. The operation of the camera 61 is controlled by the image processing ECU 6. An image picked up by the in-vehicle camera 61 is transmitted to a CCD which is an image pickup element that converts light intensity into light intensity, and the CCD converts the image into an electric signal and inputs it to the image processing ECU 6. The image processing ECU 6 performs image analysis by analyzing the input electrical signal, and determines the presence or absence of a living body based on the analysis result. FIG. 3 is a plan view of the vehicle for explaining the shooting range of the in-vehicle camera 61 used as the first living body detection means. The camera 61 is set in the shooting range D1 at the front and rear of the vehicle 1 as shown in the figure. Have As the camera 61, a rear view camera, a front view camera, a side view camera or the like mounted on the vehicle 1 can be used.

  According to the first living body detection means, the living body detection using the in-vehicle camera 61 enables direct and effective living body detection by imaging, and the number of parts is increased for the vehicle 1 on which the camera 61 is mounted. Can be provided.

  The corner sensor ECU 7 determines whether or not a living body is present around the vehicle 1 using electric signals of reflected waves input from sensors 71, 72, 73, and 74 embedded in several locations such as a bumper of the vehicle 1. To do. FIG. 7 is a plan view of the vehicle for explaining the detection range of the corner sensor used as the second living body detection means, and each sensor 71 to 74 has a detection range D2 around the vehicle 1 as shown. . Each of the sensors 71 to 74 is a means including a transmitting unit that transmits predetermined light or sound waves toward the periphery of the vehicle 1 and a receiving unit that receives the reflected waves, and can transmit and receive ultrasonic waves, for example. An ultrasonic sensor can be used. The operations of the sensors 71 to 74 are controlled by the corner sensor ECU 7.

  That is, each sensor 71 to 74 receives a reflected wave from the living body when the living body enters the predetermined detection range D2. The corner sensor ECU 7 determines the presence or absence of the living body based on the difference between the electrical signal corresponding to the reflected wave received before the living body enters and the electrical signal corresponding to the reflected wave from the living body.

  According to the second living body detection means, the living body detection utilizing the sensors 71 to 74 of the vehicle 1 enables the living body detection according to the detection range of the sensors 71 to 74, and the vehicle 1 on which the sensors are mounted. Therefore, it is possible to provide a non-contact power feeding system that can reduce the increase in the number of parts.

  The smart ECU 8 determines whether a living body is present around the vehicle 1 using predetermined electrical signals input from a transceiver 81 embedded in several places such as a door portion of the vehicle 1. FIG. 9 is a plan view of the vehicle for explaining the detection range of the smart-entry vehicle-side transceiver used as the third living body detection means. Each transceiver 81 is detected around the vehicle 1 as shown in the figure. It has a range D3. The predetermined electrical signal received by the transceiver 81 is an electrical signal corresponding to a unique management number (also referred to as an ID number) possessed by a smart entry key that is uniquely set for the vehicle 1.

  That is, when the user of the vehicle 1 has a smart entry key having the unique management number and the user enters the predetermined detection range D3, the transmitter / receiver 81 has an electric power corresponding to the unique management number. Receive a signal. The smart ECU 8 determines whether or not the unique management number received by the transmitter / receiver 81 is a unique management number set uniquely for the vehicle 1. It is determined that the person who possesses the vehicle 1 exists around the vehicle 1. The smart ECU 8 determines the presence or absence of a living body in this way.

  According to the third living body detection means, the person who has the smart entry key touches the door or the like to detect the presence of a person around the vehicle before unlocking or locking the door. It is possible to detect that a person has approached 1. Therefore, it is possible to carry out a power feeding operation with power limitation in a state where the living body is separated from the side of the vehicle 1 to some extent. In addition, biometric detection using a smart entry key (portable transmitter), for example, in a vehicle enables biometric detection according to the detection range on the receiver side, and door opening / closing command means using such a portable transmitter is adopted. Thus, a contactless power feeding system that can reduce the increase in the number of components can be provided for the vehicle 1 that performs the above operation.

  When the mobile device 120 such as a mobile phone having a position detection function approaches the vehicle 1 as the fourth living body detection means, the vehicle control ECU 9 detects the terminal position information of the mobile device 120 using the function and the vehicle 1. Collate with location information. The vehicle control ECU 9 determines whether or not the terminal position is within a predetermined range around the vehicle 1 by checking the position information. When the vehicle control ECU 9 determines that the acquired terminal position is within a predetermined range around the vehicle 1, the vehicle control ECU 9 determines that a person having the portable device 120 having the position detection function exists around the vehicle 1. The vehicle control ECU 9 determines the presence or absence of a living body in this way.

  In addition, as a position detection function of the vehicle 1 and a position detection function of the portable device 120, for example, a global positioning system (Global Positioning System) that is a sanitary positioning system can be used. The sanitary positioning system and the vehicle control ECU 9 constitute vehicle position detection means and terminal position detection means of the portable device 120.

  According to the fourth living body detection means, a person who holds the portable device 120 can detect a living body using the position detection function of the portable device 120 such as a mobile phone and the position detection function of detecting the position of the vehicle 1. It can be detected that the person is approaching the vehicle 1 by detecting that the vehicle is present around the vehicle. Therefore, it is possible to carry out a power feeding operation with power limitation in a state where the living body is separated from the side of the vehicle 1 to some extent.

  The vehicle control ECU 9 calculates engine output and motor torque according to the driving state based on signals from various sensors, and outputs required values to each ECU to control the driving force of the drive wheels 23. The engine ECU 2 controls the power of the engine 20 by controlling the electronic throttle according to the engine output request from the vehicle control ECU 9. The motor generator ECU 4 controls the first motor generator 41, the second motor generator 42, the first inverter 43, the second inverter 44, and the boost converter 31 based on a signal from the vehicle control ECU 9.

  The control circuit 10 is configured to include a rectifier circuit and an inverter, and converts AC power obtained from an external system power supply or the like via the ground side power supply unit 111 and supplies the AC power to the power storage device 30. The charger ECU 5 is a means for determining whether or not there is a power supply request to the vehicle-side power receiving unit 11, and is an electronic control device that controls charging / discharging of the power storage device 30.

  The power supply request includes a request for charging the power storage device 30 based on an operation by a user or the like while the vehicle is stopped, and a request for driving auxiliary equipment. This is satisfied when the charger ECU 5 determines that the power receiving unit 11 is located in a range where power can be supplied. In the case of wired contact power supply, the power supply port on the power supply side and the power reception port on the vehicle 1 are connected with a cable by plug connection or the like, and if other conditions necessary for power supply are satisfied, the charger ECU 5 Satisfied when judged.

  The charger ECU 5 is configured to be able to communicate with various loads 33 and 34 via the vehicle control ECU 9 and the control circuit 10, and is provided in the control circuit 110 on the ground-side power feeding unit 111 side through the vehicle-side communication device 12. The communication device 112 communicates with the control circuit 110 or the like on the power feeder side. The vehicle-side communication device 12 is configured to be able to communicate with a power supply-side communication device 112 and a mobile device 120 such as a mobile phone. The vehicle control ECU 9 controls the control circuit 10 via the charger ECU 5 or the like, thereby controlling the charging of the power storage device 30 and supplying power to various loads 33 and 34 such as a navigation device, an air conditioner device, and a compressor. Processing is also performed.

  The distribution board 102 in the house fulfills a function of allocating electric power, such as an external system power supply, to the loads 103, 104, 105, etc. of equipment used on the house side. This allocation function is performed by the home control device 100 controlling the switchboard 102. The power feeder can communicate various information with the communication device 12 in the vehicle 1 outside the house via the communication device 112.

  The vehicle 1 includes a power split mechanism 21 including a planetary gear mechanism. The power split mechanism 21 splits the power of the first motor generator 41, the second motor generator 42, and the engine 20.

  The first motor generator 41, the engine 20, and the second motor generator 42 are mechanically coupled to the sun gear, carrier, and ring gear of the power split mechanism 21, respectively. The driving wheel 23 is mechanically connected to the second motor generator 42 via the axle 22. The axle 22 is a shaft for transmitting the power output from the engine 20 and the second motor generator 42 to the drive wheels 23. A first inverter 43 and a second inverter 44 are connected to each of the first motor generator 41 and the second motor generator 42.

  The operation state of each part of the vehicle 1 in the above configuration will be described. The vehicle 1 travels only by the second motor generator 42 that operates by supplying power from the power storage device 30 until the power storage device 30 becomes a predetermined SOC (state of charge) or less. When the engine 1 is not efficient, such as when starting, when traveling at a very low speed, or traveling on a gentle downhill, the second motor that operates by supplying power from the power storage device 30 while the engine 20 is stopped. The vehicle travels only with the generator 42. During normal travel, the power of the engine 20 is divided into two paths, one driving the drive wheels 23 via the axle 22, and the other driving the first motor generator 41 to generate electric power. By driving the first motor generator 41 with the generated electric power, the driving force of the engine 20 is assisted. The vehicle control ECU 9 controls the division ratio of the power split mechanism 21 so that the maximum efficiency is obtained. Further, at the time of acceleration, electric power is supplied from the power storage device 30 and a driving force by the second motor generator 42 is further added.

  During deceleration and braking, the drive wheel 23 drives the second motor generator 42 and operates as a generator to perform regenerative power generation. The regenerated power is stored in the power storage device 30. When the vehicle is stopped, the engine 20 and the motor generators 41 and 42 are stopped except during cooling, during engine warm-up, and during charging. When traveling when the power storage device 30 needs to be charged, the motor generators 41 and 42 are driven more than during normal travel to charge the power storage device 30 with surplus power.

  Next, operations related to power feeding performed by the non-contact power feeding control device will be described with reference to FIG. FIG. 4 is a main flowchart showing a processing procedure executed in the charging operation of the vehicle in the system according to the first embodiment.

  As shown in FIG. 4, first, in step 1, it is determined whether or not there is a power supply request for charging. The power supply request is satisfied when, for example, there is a request for charging the power storage device 30 or a request for driving auxiliary equipment based on an operation by a user or the like.

  If it is determined that the power supply request is satisfied, it is determined in step 2 whether or not a living body is detected around the vehicle 1. This living body detection can be performed by, for example, any one of the first to fourth living body detections or a combination of two or more.

  If it is determined in step 2 that a living body has been detected, it is determined whether or not the set α has elapsed after detection of the living body in step 3 without shifting to the power supply operation in step 5 and subsequent steps. This set time α is determined, for example, according to the difference between the current SOC of power storage device 30 and the end SOC, which is a condition for ending charging. The set time α is a value that is set longer as the SOC difference is smaller and shorter as the SOC is larger. That is, the set time α minutes is a value that is updated every charging operation, although the default value is set to a predetermined time, for example, 15 minutes.

  If it is determined in step 3 that the α minute has not yet elapsed, the process returns to step 1; however, if it is determined that the α minute has elapsed, the vehicle control ECU 9 starts supplying power to the passengers in the vehicle 1 and the vicinity of the vehicle 1. The notification unit 13 is controlled to notify that the situation is not possible. After the notification by the notification unit 13, the process returns to step 1.

  The notification unit 13 notifies the occupant of the vehicle 1 and the surroundings of the vehicle 1 of the living body detection information and the power supply power limit information by means of sound means, illumination means, or display means. In the case of sound, a horn or electronic sound at the time of opening / closing the door, in the case of lighting, lighting of headlights, room lamps, tail lamps, etc., and blinking of hazards, in the case of display, the instrument display located in front of the handle or in the center of the dashboard Display on a liquid crystal display placed on a part of the board. This is a means for resolving the situation where the power supply cannot be started even after the elapse of α minutes and starting charging at an early stage to ensure the charging time. As described above, by using the sound generation means, illumination means, or display means of the vehicle 1, the passengers of the vehicle 1 and the surrounding people can be effectively and immediately affected by the electromagnetic field. It can be urged to keep the living body away.

  If it is determined in step 2 that a living body is not detected, it can be determined that there is no problem such as a malfunction of a living body or a communication device that becomes an obstacle for starting power supply, and preparations for subsequent power supply operation are made. In step 5, power supply preparation on the vehicle 1 side is performed, and in step 6, power supply preparation on the power feeder side is performed.

  For power supply preparation on the vehicle 1 side, the power supply control switch on the vehicle 1 side is turned on, and the system main relay is connected to the power storage device 30 side. Further, in order to supply power to various ECUs, the step-down converter 32 is driven, and an end SOC, which is a condition for ending charging, is calculated and set using a predetermined map. For power supply preparation on the power supply side, the power supply control switch on the power supply side is turned ON, and the system main relay is connected to the secondary side of the power supply.

  When power supply preparation on the vehicle 1 side and the power supply side is completed, power supply is started in step 7, power supply command power is read in step 8, and power supply is controlled accordingly (step 9). After the power feeding control, the power feeding is continued until the amount of power stored in the power storage device 30 satisfies the condition of the charging end SOC. When it is determined in step 10 that the condition for the charge termination SOC is satisfied, the power supply is terminated, and this flowchart is terminated. If it is determined in step 10 that the condition for the charge termination SOC has not yet been established, in step 11 biometric detection determination similar to that in step 2 is performed. If it determines with the biological body not being detected at step 11, it will return to step 9 and will continue electric power feeding control.

  The living body detection determination in step 11 is a living body detection determination performed during power feeding from the ground-side power feeding unit 111, that is, during a charging operation. This living body detection determination serves as a trigger for performing processing for restricting power feeding in consideration of the influence from the electromagnetic field when a living body is detected during the charging operation. In this living body detection determination, the presence or absence of a living body can be determined by first to fourth living body detection flows described later.

  If it is determined in step 11 that a living body has been detected, power supply command power limitation is performed in step 12. The power limit value in the power supply command power limit is, for example, a normal ½ output. With this process, it is possible to carry out power feeding that suppresses adverse effects on the living body while controlling to approach the end of charging without interrupting power feeding.

  Next, in step 13, it is determined whether or not the set β has elapsed after the power supply power restriction. This set time β is determined according to the difference between the current SOC of power storage device 30 and the end SOC, which is a condition for ending charging, in the same manner as the previous α minutes. The set time β is a value that is set longer as the SOC difference is smaller and shorter as the SOC difference is larger. That is, the set time β is a value that is updated every charge operation, although the default value is set to a predetermined time, for example, 15 minutes.

  If it is determined in step 13 that β minutes have not yet elapsed, the process returns to step 9 to continue power supply control. However, if it is determined that β minutes have elapsed, the vehicle control ECU 9 determines that the occupant of the vehicle 1 or the vehicle 1 The informing unit 13 is controlled so as to notify that there is a situation where power supply is restricted in the vicinity of the. After the notification by the notification unit 13, the process returns to step 9 again to continue power supply control.

  Next, the biometric detection determination process performed in steps 2 and 11 will be described with reference to FIGS. 5, 8, 10, and 11.

(Flow related to first living body detection)
First, the first living body detection flow will be described with reference to FIG. By executing this first living body detection flow, it is possible to determine the presence or absence of a living body in the vicinity of the vehicle 1, and to perform appropriate processing subsequent to the determination result. As shown in FIG. 5, in step 20, it is determined whether or not the parking is complete. In this step 20, for example, it is determined whether or not the vehicle 1 is stopped and the vehicle-side power reception unit 11 of the vehicle 1 is located within a predetermined range in which power can be supplied to the ground-side power supply unit 111. This determination is continued until the parking is completed.

  If it is determined in step 20 that the parking is complete, then in step 21, the image processing ECU 6 acquires an image around the vehicle taken by the camera 61 mounted on the vehicle 1 as an electrical signal. Then, the image processing ECU 6 analyzes the image data acquired as the electrical signal in step 22 and executes the image processing, and uses the result of the image processing to determine whether or not a living body exists in the imaging range included in the image data. judge.

  If the determination in step 22 is “no living body is present”, the flag “no living body” is set in step 24, the process proceeds to step 5 or step 8, and this flow is terminated. If the determination in step 22 is “the presence of a living body”, a flag “having a living body” is set in step 23, the process proceeds to step 3 or step 12, and this flow is terminated.

  The relationship between the living body detection, the feed power, and the SOC of the power storage device 30 in the charging operation described with reference to FIG. 4 will be described with reference to FIG. FIG. 6 is a time chart showing changes in the power supplied to the vehicle 1 and changes in the SOC according to the result of the living body determination in the charging operation.

  As shown in FIG. 6, while the biometric determination is detecting a living body at the start of power feeding, the power feeding is 0 [kW], and power feeding is not performed. When the living body is no longer detected, the power supplied is increased to 2 [kW], and the current SOC during that time continues to increase smoothly toward the end SOC. However, if a living body is detected again during power feeding, the power supplied is limited to 1 [kW] again, so the SOC during that time returns to a slightly increased state. When the living body is no longer detected, the power supplied to the power supply increases to 2 [kW]. Therefore, the current SOC during that time continues to increase smoothly toward the end SOC, and when the end SOC is reached, the power supply stops and the charging operation is performed. Exit. Of course, the power limitation of the power supply may be performed with a predetermined value included in a range of 0.5 [kW] lower than 1 [kW], or less than 0.5 [kW] and 0 [kW] or more.

(Flow related to second living body detection)
Next, the second living body detection flow will be described with reference to FIG. By executing this second living body detection flow, it is possible to determine the presence or absence of a living body in the vicinity of the vehicle 1, and to execute appropriate processing subsequent to the determination result. As shown in FIG. 8, it is determined in step 20 whether or not the vehicle is in a parking completion state. In this step 20, for example, it is determined whether or not the vehicle-side power reception unit 11 of the vehicle 1 is located within a predetermined range in which power can be supplied to the ground-side power supply unit 111 while the vehicle 1 is stopped. This determination is continued until the parking is completed.

  If it is determined in step 20 that the parking is complete, then in step 21a, the corner sensor ECU 7 first detects obstacles in the initial state around the vehicle by means of sensors 71 to 74 which are corner sensors mounted on the vehicle 1. To do. This is a process of detecting whether there are walls, fences, adjacent vehicles, etc. around the vehicle as an initial state.

  Then, the corner sensor ECU 7 detects obstacles around the vehicle by the sensors 71 to 74 in step 22a. It is determined whether the detection result at this time can confirm the detection of a different obstacle compared with the detection result of the initial state in the previous step 21a. If the determination in step 22a does not detect a new obstacle, a flag “no living body” is set in step 24, the process proceeds to step 5 or step 8, and this flow ends. If the determination in step 22a is to detect a new obstacle, a flag “living body” is set in step 23, the process proceeds to step 3 or step 12, and this flow is terminated.

(Flow related to third living body detection)
Next, a third living body detection flow will be described with reference to FIG. By executing the third living body detection flow, it is possible to determine the presence or absence of a living body in the vicinity of the vehicle 1 and to execute appropriate processes subsequent to the determination result. As shown in FIG. 10, in step 20a and step 22b, the smart ECU 8 determines whether or not there is a smart key corresponding to the unique management number outside the vehicle 1. In step 20a, it can be determined whether or not the person who has the smart key has entered the predetermined key detection range D3. This determination is repeated until the smart key unique management number is received.

  If it is determined in step 20a that a key exists in the key detection range D3, then in step 22b, it is determined whether or not the unique management number of the detected key matches the unique management number registered in the vehicle 1. If the smart ECU 8 determines that the unique management number of the key detected in step 22b and the unique management number of the vehicle 1 do not match, a flag “no living body” is set in step 24, and in steps 5 and 8 Proceed and end this flow. When the smart ECU 8 receives an electric signal that matches the unique management number of the vehicle 1 in step 22b, it is assumed that a person who possesses the smart key unique to the vehicle 1 exists in the vicinity of the vehicle 1 as a result of the key verification. In step 23, a “living body present” flag is set, the process proceeds to step 3 or step 12, and this flow is terminated.

(Flow related to fourth living body detection)
Next, a fourth living body detection flow will be described with reference to FIG. By executing this fourth living body detection flow, it is possible to determine the presence or absence of a living body in the vicinity of the vehicle 1 and to execute appropriate processing subsequent to the determination result. As shown in FIG. 11, in step 20, it is determined whether or not the parking is complete. In this step 20, for example, it is determined whether or not the vehicle-side power reception unit 11 of the vehicle 1 is located within a predetermined range in which power can be supplied to the ground-side power supply unit 111 while the vehicle 1 is stopped. This determination is continued until the parking is completed.

  If it determines with it being a parking completion state by step 20, vehicle control ECU9 will acquire the positional information on the vehicle 1 by step 21c1. Furthermore, vehicle control ECU9 acquires the exact positional information, when the portable apparatus 120 exists in the vehicle periphery as mentioned above at step 21c2. In step 22c, the vehicle control ECU 9 determines whether the acquired position of the portable device 120 outside the vehicle is within a preset range with respect to the vehicle 1.

  If the vehicle control ECU 9 determines in step 22c that the position of the portable device 120 is not within the set range with respect to the vehicle 1, it is determined that the living body holding the portable device 120 is not adversely affected by the electromagnetic field. In step 24, the “no living body” flag is set, the process proceeds to step 5 or step 8, and this flow is terminated. If the vehicle control ECU 9 determines in step 22c that the position of the mobile device 120 is within the set range, the living body holding the mobile device 120 may be adversely affected by the electromagnetic field. The “living body present” flag is set, the process proceeds to step 3 or step 12, and this flow is terminated.

  The effect which the non-contact electric power feeding control apparatus of this embodiment brings is demonstrated. The non-contact power supply control device controls power supply that transmits power in a non-contact manner from a ground-side power supply unit 111 provided outside the vehicle 1 to a vehicle-side power reception unit 11 provided in the vehicle 1. When the non-contact power supply control device detects the presence of a living body in the vicinity of the ground-side power supply unit 111 during the power supply operation to the vehicle-side power reception unit 11 (step 11), the non-contact power supply control device supplies power to the vehicle-side power reception unit 11 Is compared with the case where the presence of a living body is not detected (step 12).

  According to this, when the living body is detected during the power feeding operation, the power feeding is stopped by performing the power feeding operation that limits the power of the power feeding to such an extent that the electromagnetic field does not adversely affect the living body, thereby stopping the power feeding. Therefore, it is possible to charge the vehicle 1 with traveling power while suppressing adverse effects on the living body. Accordingly, when non-contact power feeding to the vehicle 1 is performed, it is possible to charge the traveling power to the vehicle 1 while suppressing adverse effects on the living body, thereby reducing the influence of the electromagnetic field on the human body, animals, etc. 1 can prevent the charging time from being prolonged.

  When the vehicle stops at a position where power can be supplied from the ground-side power supply unit to the vehicle-side power reception unit, and when there is a power supply request from the vehicle side, for example, when power supply is started after detecting locking of the door of the vehicle There may still be people near the vehicle and there is a risk of being affected by the electromagnetic field. In the non-contact power supply control device according to the present embodiment, the living body is detected by at least one of the first living body detecting means to the fourth living body detecting means, so that it stays in the vicinity of the vehicle and is not sufficiently separated from the vehicle. It is possible to detect people. Therefore, in such a case, the concern about the influence from the electromagnetic field can be solved.

  Also, when stopping the power feeding operation after detecting the unlocking of the vehicle door during the power feeding operation, there is a possibility that a person is near the vehicle before the unlocking is detected. There is a risk of being affected by electromagnetic fields. In the non-contact power supply control device according to the present embodiment, since the living body is detected by at least one of the first living body detecting means to the fourth living body detecting means, a person approaching the vehicle is detected before the door is unlocked. Is possible. Therefore, in such a case, the concern about the influence from the electromagnetic field can be solved.

  When the presence of a living body is detected again around the ground-side power feeding unit 111 during the power feeding operation in which the power feeding power is limited, the non-contact power feeding control device continues to limit the power feeding power (steps 11 and 12). ). According to this, the state where the power supply power is once limited to suppress the influence of the electromagnetic field on the living body is maintained while the living body is continuously detected. With this control, when there is a possibility that the living body may be affected by the electromagnetic field during the power feeding operation, the power feeding with the power limitation can be continued. Therefore, the power feeding operation with excellent safety can be continuously performed.

  The non-contact power supply control device does not start the power supply operation when there is a power supply operation request for performing the power supply operation and the presence of a living body is detected around the ground-side power supply unit 111 before the power supply operation is performed ( Step 2, Step 3). According to this, when power supply is not performed, for example, when a living body is detected while power supply is stopped, the power supply operation is not started even when there is a power supply operation request. Thus, since the power supply stop state is maintained even when the power supply operation request is violated, the possibility that the living body is affected by the electromagnetic field at the same time as the start of power supply is prevented.

  The non-contact power supply control device notifies the outside when the time during which the power supply is limited is longer than the set time (steps 4 and 14). According to this, when the time of power limitation is prolonged, a state in which the living body is approaching can be quickly resolved by notifying a person. Since the power supply operation can be performed with normal electric power after it is resolved quickly as described above, the time required for charging the power storage device 30 of the vehicle 1 can be shortened. Therefore, early completion of charging can be realized.

  The non-contact power supply control device determines the set time (for example, α minutes and β minutes) that becomes a trigger when reporting to the outside based on the difference between the SOC of the current power storage device 30 and the end SOC. (Step 3 and Step 13). According to this, it becomes possible to set the time until the start of notification to the outside in accordance with the magnitude of the difference between the current SOC and the end SOC, and the power supply operation time without power supply restriction is set. Many can be secured. For example, when the difference between the current SOC and the end SOC is large, the α and β minutes are set to be short so that the power supply operation for performing the power supply restriction is terminated early and the power supply restriction is performed. Therefore, it is possible to provide a control that suppresses the influence of the electromagnetic field on the living body and realizes the end of charging the vehicle at an early stage.

  Further, the non-contact power supply system of the present embodiment includes the above-described non-contact power supply control device and the above-described living body detection unit that detects the presence of a living body in the vicinity of the ground-side power supply unit 111. According to this configuration, when a living body such as a human body is detected in the vicinity of the ground-side power supply unit 111 in which a magnetic field is generated during power supply operation, the power supply restricts the power supply compared to the case where it is not detected. A non-contact power supply system that performs operation can be provided.

(Other embodiments)
The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In the above-described embodiment, when the living body is detected in the vicinity of the vehicle by the living body detection means, the process of limiting the power supply is performed. At this time, after performing a power feeding operation with power limitation, the user may be notified and switched to power feeding via a plug-in cable. In addition, when the power supply operation with power limitation is prolonged and the set time is exceeded, the user or the like may be notified to switch to power supply by plug-in.

  In the above-described embodiment, it is described that the vehicle control ECU 9 on the vehicle 1 side constitutes the non-contact power feeding control device of the present invention as an integrated ECU together with various ECUs. However, the present invention is not limited to this mode. For example, the vehicle control ECU 9 may constitute the non-contact power supply control device of the present invention as an integrated ECU together with an ECU related to living body detection provided in the ground-side power supply facility and an ECU related to power supply control. In addition, the ECU provided in the ground-side power supply facility may constitute the non-contact power supply control device of the present invention as an integrated ECU together with the ECU related to living body detection provided in the ground-side power supply facility and the ECU related to power supply control. Further, the ECU provided in the ground-side power supply facility may constitute the non-contact power supply control device of the present invention as an integrated ECU together with the ECU related to living body detection provided on the vehicle 1 side and the ECU related to power supply control.

  In the above-described embodiment, the facility-side power feeder is configured to transmit power from the system power supply of the house 100, but is not limited to this configuration. For example, the power feeder may be installed at a charging station provided in parking facilities such as coin parking, commercial facilities, public facilities, or the like.

  In the above embodiment, the example in which the vehicle power control device according to the present invention is applied to a parallel series hybrid vehicle has been described. However, the vehicle to which the present invention is applicable is not limited to this type. For example, the present invention can be applied to any vehicle that can be applied to an electric vehicle, has a configuration in which electric power is taken in from the outside and can be stored in a secondary battery, and travels by converting electric power into driving force.

  In the above embodiment, the plug 113 provided at the tip of the cord extending from the vehicle side is connected to the outlet 101 provided at the terminal of the wiring from the home switchboard 102, so that power can be supplied to the control circuit 10. It becomes a state. Such a plug 113 is not limited to the form of connecting to the house side, and may be a form of connecting the plug at the tip of the cord extending from the house side to the charging lid on the vehicle side.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 5 ... Charger ECU (electric power supply request | requirement detection means)
6 Image processing ECU (biological detection means)
7. Corner sensor ECU (biological detection means)
8. Smart ECU (Biological detection means)
9 ... Vehicle control ECU (non-contact power supply control device, vehicle position detection means)
DESCRIPTION OF SYMBOLS 11 ... Vehicle side power receiving part 13 ... Notification part (Sound generation means, illumination means)
61 ... Camera 71, 72, 73, 74 ... Sensor 81 ... Transmitter / receiver (receiver)
111 ... ground-side power supply unit 112 ... communication device (portable transmitter)
120 ... portable device

Claims (8)

Controls the power supply that sends power in a non-contact manner from the ground-side power supply unit (111) provided outside the vehicle (1) that travels using the stored power to the vehicle-side power reception unit (11) provided in the vehicle. A non-contact power supply control device,
When the presence of a living body is detected in the vicinity of the ground-side power feeding unit during the power feeding operation to the vehicle-side power receiving unit, the power to be fed to the vehicle-side power receiving unit is not detected. limit than feeding operation and,
When the time during which the power supply power is limited is longer than the set time, a notification is given to the outside,
The set time is determined based on a difference between a storage amount stored in the vehicle and a storage amount required at the end of charging of the vehicle. Power supply control device. The non-contact power feeding control device according to claim 1 , wherein the means for notifying to the outside is a sound generation means (13) included in the vehicle or an illumination means (13) included in the vehicle. When there is a power supply operation request for performing the power supply operation and the presence of a living body is detected in the vicinity of the ground-side power supply unit before the power supply operation is performed, the power supply operation is not started. The non-contact power feeding control device according to claim 1 or 2 . The non-contact power feeding control device (9) according to any one of claims 1 to 3 ,
A non-contact power feeding system comprising: living body detecting means (6, 8, 7) for detecting the presence of a living body in the vicinity of the ground side power feeding unit. The non-contact power feeding system according to claim 4 , wherein the living body detection unit includes a camera (61) mounted on the vehicle and photographing the periphery of the vehicle. The non-contact according to claim 4 or 5 , wherein the living body detection means includes a sensor (71 to 74) mounted on the vehicle for detecting an obstacle existing around the vehicle. Power supply system. The living body detection means is a receiver (81) wirelessly communicating with a portable transmitter (112) having a unique management number capable of opening and closing the door of the vehicle, and the portable transmitter (112) is set in advance The non-contact according to any one of claims 4 to 6 , further comprising a receiver (81) for receiving the unique management number when present within a detection range from a vehicle door. Power supply system. The living body detection means includes a vehicle position detection means (9) for detecting the position of the vehicle, and a portable device (120) for detecting the position relative to the vehicle when it is outside the vehicle. The contactless power feeding system according to claim 4, wherein the contactless power feeding system is provided.

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