JP2013048511A - Electric vehicle - Google Patents

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JP2013048511A
JP2013048511A JP2011185779A JP2011185779A JP2013048511A JP 2013048511 A JP2013048511 A JP 2013048511A JP 2011185779 A JP2011185779 A JP 2011185779A JP 2011185779 A JP2011185779 A JP 2011185779A JP 2013048511 A JP2013048511 A JP 2013048511A
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unit
vehicle
state
sweeping
electric vehicle
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Noriaki Asaoka
則明 朝岡
Osamu Ohashi
修 大橋
Takeshi Nishio
剛 西尾
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Panasonic Corp
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Panasonic Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

PROBLEM TO BE SOLVED: To remove the foreign body already existing on the feeding coil before the start of charge.SOLUTION: In an electric vehicle 10, a power receiving part 110 disposed to the bottom face of a vehicle is supplied with the electric energy by noncontact from a power supply part 203 set up on the ground surface; a storage battery 108 accumulates the electric energy; sweeping parts 109a and 109b disposed to the bottom face of the vehicle are movable between a storage state and a sweepable states and sweep out the foreign body on the power supply part 203 in the sweepable state; and a control part 107 moves the sweeping part 109a or the sweeping part 109b from the storage state to the sweepable state, when the distance between the vehicle and the power supply parts 203 becomes less than the threshold value.

Description

本発明は、電気自動車に関し、特に、車両に搭載された蓄電池を、車両の外部にある電源（外部電源）から、電磁誘導を用いた非接触充電によって充電する電気自動車に関する。   The present invention relates to an electric vehicle, and more particularly to an electric vehicle that charges a storage battery mounted on a vehicle from a power source (external power source) outside the vehicle by non-contact charging using electromagnetic induction.

近年、外部電源から、電磁誘導を用いた非接触充電によって、車両に搭載された蓄電池を充電する充電システムが提案されている（電磁誘導方式の非接触充電システム）。例えば、駐車場の駐車領域に設置された給電コイルに外部電源から電気エネルギを供給することにより、車両に設置された受電コイルに電磁誘導による電気エネルギを発生させ、受電コイルからの電気エネルギを蓄電池に蓄積して充電する充電システムが提案されている。   In recent years, a charging system for charging a storage battery mounted on a vehicle by non-contact charging using electromagnetic induction from an external power source has been proposed (electromagnetic induction type non-contact charging system). For example, by supplying electric energy from an external power source to a power feeding coil installed in a parking area of a parking lot, electric power is generated by electromagnetic induction in a power receiving coil installed in a vehicle, and the electric energy from the power receiving coil is stored in a storage battery. A charging system that accumulates and charges the battery has been proposed.

このような充電システムでは、受電コイルと給電コイルとの間に異物が存在すると、電磁誘導加熱により異物が異常発熱してしまい、受電コイルの筐体または給電コイルの筐体が溶解してしまう等の事故が生じる可能性がある。   In such a charging system, if there is a foreign object between the power receiving coil and the power supply coil, the foreign object is abnormally heated due to electromagnetic induction heating, and the case of the power receiving coil or the case of the power supply coil is melted. Accidents may occur.

そこで、従来の技術では、充電開始時または充電中に、受電コイルと給電コイルとの間の空間を絶縁性の隔離材で包囲することにより、その空間に異物が侵入するのを防いでいる（特許文献１参照）。   Therefore, in the conventional technique, a space between the power receiving coil and the power feeding coil is surrounded by an insulating insulating material at the start of charging or during charging, thereby preventing foreign matter from entering the space ( Patent Document 1).

特開２０１０−２２６９４６号公報JP 2010-226946 A

しかしながら、上記従来の技術のような隔離材による包囲では、充電開始前には給電コイル上の空間は隔離されないため、充電中の異物の侵入を防ぐことはできても、車両が給電コイル上に駐車する前、すなわち、充電開始前から既に給電コイル上に存在している異物を除去することはできない。   However, since the space on the power supply coil is not isolated before the start of charging in the enclosure with the separator as in the conventional technique, the vehicle can be placed on the power supply coil even though foreign matter can be prevented from entering during charging. It is impossible to remove foreign matter already present on the power supply coil before parking, that is, before the start of charging.

本発明は、かかる点に鑑みてなされたものであり、充電開始前から既に給電コイル上に存在している異物を除去することができる電気自動車を提供することを目的とする。   This invention is made | formed in view of this point, and it aims at providing the electric vehicle which can remove the foreign material already existing on a feed coil before the charge start.

本発明の電気自動車は、車両の底面に配置され、地面に設置された給電部から非接触で供給される電気エネルギを受電する受電部と、前記電気エネルギを蓄積する蓄電池と、前記底面に配置され、収納状態と掃出可能状態との間を可動であり、前記掃出可能状態において前記給電部上の異物を掃き出す掃出部と、前記車両と前記給電部との間の距離が閾値未満になった場合に、前記掃出部を前記収納状態から前記掃出可能状態に移動させる制御部と、を具備する。   The electric vehicle of the present invention is disposed on the bottom surface of the vehicle, and is disposed on the bottom surface, a power receiving unit that receives electrical energy supplied in a non-contact manner from a power feeding unit installed on the ground, a storage battery that stores the electrical energy, and the bottom surface And the distance between the vehicle and the power supply unit is less than a threshold, the movable unit being movable between the housed state and the sweepable state, and the sweeping unit that sweeps out foreign matter on the power supply unit in the sweepable state. A control unit that moves the sweeping unit from the housed state to the sweepable state.

本発明によれば、充電開始前から既に給電コイル上に存在している異物を除去することができる。   According to the present invention, it is possible to remove foreign matter that already exists on the power feeding coil before the start of charging.

本発明の実施の形態に係る電気自動車の構成を示すブロック図The block diagram which shows the structure of the electric vehicle which concerns on embodiment of this invention 本発明の実施の形態に係る掃出部の構成を示す図（構成例１）The figure which shows the structure of the sweep part which concerns on embodiment of this invention (structure example 1) 本発明の実施の形態に係る掃出部の配置を示す図The figure which shows arrangement | positioning of the sweep part which concerns on embodiment of this invention 本発明の実施の形態に係る掃出部の構成を示す図（構成例２：掃出可能状態）The figure which shows the structure of the sweep part which concerns on embodiment of this invention (structure example 2: sweeping possible state) 本発明の実施の形態に係る掃出部の構成を示す図（構成例２：収納状態）The figure which shows the structure of the sweeping part which concerns on embodiment of this invention (example 2 of a structure: accommodation state) 本発明の実施の形態に係る方位の関係を示す図The figure which shows the relationship of the azimuth | direction which concerns on embodiment of this invention 本発明の実施の形態に係る電気自動車の動作フローの一例を示す図The figure which shows an example of the operation | movement flow of the electric vehicle which concerns on embodiment of this invention 本発明の実施の形態に係る掃出部の掃出可能状態に一例を示す図The figure which shows an example in the sweepable state of the sweep part which concerns on embodiment of this invention 本発明の実施の形態に係る掃出部の構成を示す図（構成例３）The figure which shows the structure of the sweep part which concerns on embodiment of this invention (structure example 3)

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本実施の形態に係る電気自動車１０の構成を示すブロック図である。   FIG. 1 is a block diagram showing a configuration of an electric vehicle 10 according to the present embodiment.

図１に示すように、電気自動車１０は、角速度センサ１０１、車速センサ１０２、シフトポジションセンサ１０３、ＧＰＳ受信部１０４、地図データ１０５、自車位置検出部１０６、制御部１０７、蓄電池１０８、掃出部１０９ａ，１０９ｂ、受電部１１０、および、通信部１１１を備える。   As shown in FIG. 1, the electric vehicle 10 includes an angular velocity sensor 101, a vehicle speed sensor 102, a shift position sensor 103, a GPS receiver 104, a map data 105, a vehicle position detector 106, a controller 107, a storage battery 108, and sweeping. Units 109a and 109b, a power receiving unit 110, and a communication unit 111.

また、電気自動車１０に電気エネルギを供給する給電装置２０は、通信部２０１、制御部２０２、および、給電部２０３を備える。   The power supply device 20 that supplies electric energy to the electric vehicle 10 includes a communication unit 201, a control unit 202, and a power supply unit 203.

図１に示す電気自動車１０において、角速度センサ１０１は、車両の角速度を検出して検出結果を自車位置検出部１０６に出力する。   In the electric vehicle 10 shown in FIG. 1, the angular velocity sensor 101 detects the angular velocity of the vehicle and outputs the detection result to the own vehicle position detection unit 106.

車速センサ１０２は、車両の速度を検出して検出結果を自車位置検出部１０６に出力する。   The vehicle speed sensor 102 detects the speed of the vehicle and outputs the detection result to the own vehicle position detection unit 106.

シフトポジションセンサ１０３は、車両のシフトポジションを検出して検出結果を制御部１０７に出力する。   The shift position sensor 103 detects the shift position of the vehicle and outputs the detection result to the control unit 107.

ＧＰＳ受信部１０４は、車両のおおよその現在位置を取得し、現在位置周辺の地図データを地図データ１０５から読み出して、おおよその現在位置および地図データの双方を自車位置検出部１０６に出力する。なお、地図データ１０５には、給電装置２０の給電部２０３の位置、および、車両駐車時の方位が予め記憶されている。   The GPS receiving unit 104 acquires an approximate current position of the vehicle, reads map data around the current position from the map data 105, and outputs both the approximate current position and the map data to the own vehicle position detection unit 106. The map data 105 stores in advance the position of the power feeding unit 203 of the power feeding device 20 and the direction when the vehicle is parked.

なお、角速度センサ１０１、車速センサ１０２、ＧＰＳ受信部１０４および地図データ１０５として、例えば電気自動車１０に搭載されたカーナビゲーション装置を利用してもよい。   For example, a car navigation device mounted on the electric vehicle 10 may be used as the angular velocity sensor 101, the vehicle speed sensor 102, the GPS receiving unit 104, and the map data 105.

自車位置検出部１０６は、車両のおおよその現在位置、車両の角速度および車両の速度から、車両の正確な現在位置、および、車両の方位を検出し、検出結果を制御部１０７に出力する。また、自車位置検出部１０６は、車両の正確な現在位置と地図データに記憶されている給電部２０３の位置とから、車両と給電部２０３との間の距離を算出し、算出結果を制御部１０７に出力する。   The own vehicle position detection unit 106 detects the accurate current position of the vehicle and the direction of the vehicle from the approximate current position of the vehicle, the angular velocity of the vehicle, and the vehicle speed, and outputs the detection result to the control unit 107. The own vehicle position detection unit 106 calculates the distance between the vehicle and the power supply unit 203 from the accurate current position of the vehicle and the position of the power supply unit 203 stored in the map data, and controls the calculation result. Output to the unit 107.

制御部１０７は、掃出部１０９ａ，１０９ｂを動かして、掃出部１０９ａ，１０９ｂを収納状態または掃出可能状態のいずれかの状態にする。また、制御部１０７は、受電部１１０での電気エネルギの受電の開始・終了を制御する。また、制御部１０７は、受電部１１０での電気エネルギの受電を開始する際に給電開始要求を通信部１１１に出力する一方で、受電部１１０での電気エネルギの受電を終了する際に給電終了要求を通信部１１１に出力する。制御部１０７での制御の詳細は後述する。   The control unit 107 moves the sweeping units 109a and 109b to place the sweeping units 109a and 109b in either the housed state or the sweepable state. In addition, the control unit 107 controls the start / end of power reception by the power receiving unit 110. In addition, the control unit 107 outputs a power supply start request to the communication unit 111 when the power reception unit 110 starts to receive electric energy, while the power supply ends when the power reception unit 110 ends power reception. The request is output to the communication unit 111. Details of the control in the control unit 107 will be described later.

蓄電池１０８は、受電部１１０によって受電された電気エネルギを蓄積する。   The storage battery 108 stores the electric energy received by the power receiving unit 110.

掃出部１０９ａ，１０９ｂは、車両の底面に配置され、収納状態と掃出可能状態との間を可動であり、掃出可能状態において給電部２０３上の異物を給電部２０３上から掃き出して除去する。掃出部１０９ａ，１０９ｂの詳細は後述する。   The sweeping units 109a and 109b are arranged on the bottom surface of the vehicle, and are movable between the housed state and the sweepable state. In the sweepable state, the foreign matter on the power feeding unit 203 is swept away from the power feeding unit 203 and removed. To do. Details of the sweeping units 109a and 109b will be described later.

なお、図１では、電気自動車１０は、受電部１１０より車両の前方側に配置される掃出部１０９ｂと、受電部１１０より車両の後方側に配置される掃出部１０９ａの２つの掃出部を備えているが、車両の前方側または後方側の一方にのみ掃出部を備える構成を採ってもよい。   In FIG. 1, the electric vehicle 10 has two sweeps, a sweep unit 109 b disposed on the front side of the vehicle from the power receiving unit 110 and a sweep unit 109 a disposed on the rear side of the vehicle from the power receiving unit 110. However, a configuration may be adopted in which the sweeping unit is provided only on one of the front side and the rear side of the vehicle.

受電部１１０は、車両の底面に配置され、給電部２０３から非接触で供給される電気エネルギを受電し、受電した電気エネルギを蓄電池１０８に出力する。受電部１１０は、主に、受電コイルと受電コイルを覆う筐体とによって構成される。   The power receiving unit 110 is disposed on the bottom surface of the vehicle, receives electric energy supplied from the power supply unit 203 in a contactless manner, and outputs the received electric energy to the storage battery 108. The power receiving unit 110 is mainly configured by a power receiving coil and a housing that covers the power receiving coil.

通信部１１１は、制御部１０７から出力された給電開始要求または給電終了要求を給電装置２０の通信部２０１へ送信する。   The communication unit 111 transmits the power supply start request or the power supply end request output from the control unit 107 to the communication unit 201 of the power supply apparatus 20.

一方、給電装置２０において、通信部２０１は通信部１１１から送信された給電開始要求または給電終了要求を受信して制御部２０２に出力する。   On the other hand, in the power supply apparatus 20, the communication unit 201 receives the power supply start request or the power supply end request transmitted from the communication unit 111 and outputs the request to the control unit 202.

制御部２０２は、給電部２０３の受電部１１０への電気エネルギの供給を制御する。すなわち、制御部２０２は、入力される給電開始要求に従って、給電部２０３に受電部１１０への電気エネルギの供給を開始させる。一方、制御部２０２は、入力される給電終了要求に従って、給電部２０３に受電部１１０への電気エネルギの供給を終了させる。   The control unit 202 controls the supply of electrical energy to the power receiving unit 110 of the power feeding unit 203. That is, the control unit 202 causes the power supply unit 203 to start supplying electric energy to the power reception unit 110 in accordance with the input power supply start request. On the other hand, the control unit 202 causes the power supply unit 203 to end the supply of electric energy to the power reception unit 110 in accordance with the input power supply end request.

給電部２０３は、外部電源３０に接続されて地面に設置され、制御部２０２からの上記制御に従って、受電部１１０へ電気エネルギを供給する。給電部２０３には、外部電源３０から電気エネルギが供給される。給電装置２０が一般家庭に設置されるものである場合は、外部電源３０は家庭用電源であり、例えば１００〜２４０Ｖ程度の交流の電気エネルギを給電部２０３に出力する。また、給電装置２０が急速充電用の充電スタンドとして設置されるものである場合は、外部電源３０は例えば４００Ｖ程度の直流の電気エネルギを給電部２０３に出力する。   The power feeding unit 203 is connected to the external power source 30 and installed on the ground, and supplies electrical energy to the power receiving unit 110 according to the control from the control unit 202. Electric energy is supplied to the power supply unit 203 from the external power supply 30. When the power feeding device 20 is installed in a general household, the external power source 30 is a household power source, and outputs AC electric energy of, for example, about 100 to 240 V to the power feeding unit 203. When the power supply device 20 is installed as a charging station for quick charging, the external power supply 30 outputs DC electric energy of about 400 V to the power supply unit 203, for example.

次いで、掃出部１０９ａ，１０９ｂの構成について説明する。掃出部１０９ａ，１０９ｂは、例えば以下に示す構成例１，２のような構成を採り、制御部１０７によって収納状態または掃出可能状態のいずれかの状態に制御される。   Next, the configuration of the sweeping units 109a and 109b will be described. The sweeping units 109a and 109b have, for example, configurations such as the following configuration examples 1 and 2, and are controlled by the control unit 107 to either the housed state or the sweepable state.

＜構成例１：図２＞
図２に構成例１を示す。構成例１に示す掃出部１０９ａ，１０９ｂは、回転軸を中心とした移動により収納状態または掃出可能状態をとる。 <Configuration example 1: FIG. 2>
FIG. 2 shows a configuration example 1. The sweeping units 109a and 109b shown in the configuration example 1 are in the storage state or the sweepable state by moving around the rotation axis.

図２に示すように、構成例１の掃出部１０９ａ，１０９ｂは、刷毛部３０１と、取付台座３０２と、回転軸３０３とを備える。刷毛部３０１は、その根本を取付台座３０２に取り付けられている。取付台座３０２は、回転軸３０３を中心として制御部１０７によって回転させられる。制御部１０７は、掃出部１０９ａ，１０９ｂを収納状態とするときは取付台座３０２を車両の底面側に接するように回転させて刷毛部３０１を地面から離し、掃出部１０９ａ，１０９ｂを掃出可能状態とするときは取付台座３０２を車両の底面と反対側に回転させて刷毛部３０１を地面に接させる。回転軸３０３の一端または両端にモータ等の駆動装置を取り付け、制御部１０７は、この駆動装置を駆動させて回転軸３０３を回転させる。   As shown in FIG. 2, the sweeping portions 109 a and 109 b of Configuration Example 1 include a brush portion 301, a mounting base 302, and a rotating shaft 303. The brush portion 301 has its root attached to the mounting base 302. The mounting base 302 is rotated by the control unit 107 around the rotation shaft 303. When the sweeping units 109a and 109b are stored, the control unit 107 rotates the mounting base 302 so as to contact the bottom side of the vehicle to move the brush unit 301 away from the ground, and sweeps the sweeping units 109a and 109b. When making it possible, the mounting base 302 is rotated to the opposite side of the bottom surface of the vehicle to bring the brush portion 301 into contact with the ground. A driving device such as a motor is attached to one end or both ends of the rotating shaft 303, and the control unit 107 drives the driving device to rotate the rotating shaft 303.

掃出部１０９ａ，１０９ｂが上記のように構成される場合、制御部１０７は、図３に示すように、掃出部１０９ａ，１０９ｂを受電部１１０側に回転させて収納状態にするのが好ましい。これにより、受電部１１０の一部または全部が掃出部１０９ａ，１０９ｂによって覆われるため、車両の走行中に受電部１１０が泥はね等により汚れてしまうことを防ぐことができる。   When the sweeping units 109a and 109b are configured as described above, the control unit 107 preferably rotates the sweeping units 109a and 109b to the power receiving unit 110 side so as to be stored as shown in FIG. . As a result, part or all of the power receiving unit 110 is covered with the sweeping units 109a and 109b, so that it is possible to prevent the power receiving unit 110 from being contaminated with mud splashes while the vehicle is running.

＜構成例２：図４Ａ，Ｂ＞
図４Ａ，Ｂに構成例２を示す。構成例２に示す掃出部１０９ａ，１０９ｂは、上下方向の移動により収納状態（図４Ｂ）または掃出可能状態（図４Ａ）をとる。 <Configuration Example 2: FIGS. 4A and 4B>
A configuration example 2 is shown in FIGS. 4A and 4B. The sweeping units 109a and 109b shown in the configuration example 2 are in the storage state (FIG. 4B) or the sweepable state (FIG. 4A) by moving in the vertical direction.

図４Ａ，Ｂに示すように、構成例２の掃出部１０９ａ，１０９ｂは、刷毛部４０５と、取付台座４０３と、車両側に設けられるガイド部４０２ａ，４０２ｂとを備える。また、構成例２の掃出部１０９ａ，１０９ｂは、車両の底面に設けられた開口部４０１に設置される。刷毛部３０１は、その根本を取付台座４０３に取り付けられている。取付台座４０３はその両端に凸部４０４ａ，４０４ｂを有し、この両端の凸部４０４ａ，４０４ｂをガイド部４０２ａ，４０２ｂに設けられた凹部に沿わせて制御部１０７によって上下に移動させられる。制御部１０７は、掃出部１０９ａ，１０９ｂを収納状態とするときは取付台座４０３を上方向に移動させて車両の内部に格納し（図４Ｂ），掃出部１０９ａ，１０９ｂを掃出可能状態とするときは取付台座４０３を下方向に移動させて刷毛部４０５を地面に接させる（図４Ａ）。取付台座４０３の凸部４０４ａ，４０４ｂにモータ等の駆動装置を取り付け、制御部１０７は、この駆動装置を駆動させて取付台座４０３を上下方向に移動させる。   As shown in FIGS. 4A and 4B, the sweeping portions 109a and 109b of the configuration example 2 include a brush portion 405, a mounting base 403, and guide portions 402a and 402b provided on the vehicle side. Further, the sweeping portions 109a and 109b of the configuration example 2 are installed in the opening 401 provided on the bottom surface of the vehicle. The brush portion 301 is attached to the mounting base 403 at its root. The mounting base 403 has convex portions 404a and 404b at both ends thereof, and the convex portions 404a and 404b at both ends are moved up and down by the control unit 107 along the concave portions provided in the guide portions 402a and 402b. When the sweeping units 109a and 109b are stored, the control unit 107 moves the mounting base 403 upward and stores it inside the vehicle (FIG. 4B), and the sweeping units 109a and 109b can be swept. In this case, the mounting base 403 is moved downward to bring the brush portion 405 into contact with the ground (FIG. 4A). A driving device such as a motor is attached to the convex portions 404a and 404b of the mounting base 403, and the control unit 107 drives the driving device to move the mounting base 403 in the vertical direction.

このようして、掃出部１０９ａ，１０９ｂを車両内部に格納して収納状態とすることにより、車両の走行中に掃出部１０９ａ，１０９ｂが泥はね等により汚れてしまうことを防ぐことができる。   In this way, by storing the sweeping portions 109a and 109b inside the vehicle so as to be housed, it is possible to prevent the sweeping portions 109a and 109b from being contaminated by mud splashes while the vehicle is running. it can.

なお、掃出部１０９ａ，１０９ｂは、図３に示すように、受電部１１０の近傍に配置されるのが好ましい。電気自動車１０の充電時には、電気自動車１０の利用者は受電部１１０と給電部２０３とを正対させるように車両を操作するため、掃出部１０９ａ，１０９ｂを受電部１１０の近傍に配置することにより、受電部１１０と給電部２０３との位置合わせの際に掃出部１０９ａ，１０９ｂを確実に給電部２０３上を通過させることができる。   The sweeping units 109a and 109b are preferably arranged in the vicinity of the power receiving unit 110 as shown in FIG. When charging the electric vehicle 10, the user of the electric vehicle 10 operates the vehicle so that the power receiving unit 110 and the power feeding unit 203 face each other, so that the sweeping units 109 a and 109 b are arranged in the vicinity of the power receiving unit 110. Accordingly, when the power receiving unit 110 and the power feeding unit 203 are aligned, the sweeping units 109a and 109b can be reliably passed over the power feeding unit 203.

また、受電部１１０は電気自動車１０の利用者から見えない、車両の底面に設置されるため、電気自動車１０の利用者が受電部１１０と給電部２０３との位置合わせを行う際に、受電部１１０を給電部２０３に正確に正対させるように車両を操作するのは難しい。そこで、上記構成例１，２のいずれにおいても、掃出部１０９ａ，１０９ｂの車幅方向の長さを、給電部２０３の車幅方向の長さより大きくするのが好ましい。これにより、電気自動車１０の利用者が受電部１１０を給電部２０３に正確に正対させることができない場合でも、受電部１１０と給電部２０３との位置合わせの際に掃出部１０９ａ，１０９ｂが給電部２０３上を通過する可能性を高くすることができる。   In addition, since the power receiving unit 110 is installed on the bottom surface of the vehicle that is not visible to the user of the electric vehicle 10, when the user of the electric vehicle 10 aligns the power receiving unit 110 and the power feeding unit 203, the power receiving unit 110 It is difficult to operate the vehicle so that 110 is correctly facing the power feeding unit 203. Therefore, in any of the above configuration examples 1 and 2, it is preferable that the length of the sweeping portions 109a and 109b in the vehicle width direction is larger than the length of the power feeding portion 203 in the vehicle width direction. Thus, even when the user of the electric vehicle 10 cannot correctly face the power receiving unit 110 to the power feeding unit 203, the sweeping units 109 a and 109 b can be used when the power receiving unit 110 and the power feeding unit 203 are aligned. The possibility of passing over the power feeding unit 203 can be increased.

次いで、制御部１０７による、掃出部１０９ａ，１０９ｂの制御例について説明する。   Next, a control example of the sweeping units 109a and 109b by the control unit 107 will be described.

制御部１０７は、自車位置検出部１０６により算出された、車両と給電部２０３との間の距離が閾値未満になった場合に、車両が給電部２０３の付近に位置していると判断し、掃出部１０９ａまたは掃出部１０９ｂの一方を収納状態から掃出可能状態に移動させる。この閾値は、例えば、５〜１０ｍに設定するのが好ましい。   The control unit 107 determines that the vehicle is located near the power supply unit 203 when the distance between the vehicle and the power supply unit 203 calculated by the vehicle position detection unit 106 is less than the threshold. Then, one of the sweep unit 109a or the sweep unit 109b is moved from the housed state to the sweepable state. This threshold is preferably set to 5 to 10 m, for example.

すなわち、電気自動車１０が掃出部１０９ａしか備えておらず、掃出部１０９ｂを備えていない場合には、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になった場合に、掃出部１０９ａを収納状態から掃出可能状態に移動させる。電気自動車１０の利用者が電気自動車１０を後進させて受電部１１０と給電部２０３とを対向させることにより、掃出部１０９ａは給電部２０３上を通過して給電部２０３上に存在する異物を除去することができる。   That is, when the electric vehicle 10 includes only the sweeping unit 109a and does not include the sweeping unit 109b, the control unit 107 determines that the distance between the vehicle and the power feeding unit 203 is less than the threshold value. Then, the sweep unit 109a is moved from the housed state to the sweepable state. When the user of the electric vehicle 10 moves the electric vehicle 10 backward so that the power reception unit 110 and the power supply unit 203 face each other, the sweeping unit 109 a passes the power supply unit 203 and removes foreign matter existing on the power supply unit 203. Can be removed.

また、電気自動車１０が掃出部１０９ｂしか備えておらず、掃出部１０９ａを備えていない場合には、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になった場合に、掃出部１０９ｂを収納状態から掃出可能状態に移動させる。電気自動車１０の利用者が電気自動車１０を前進させて受電部１１０と給電部２０３とを対向させることにより、掃出部１０９ｂは給電部２０３上を通過して給電部２０３上に存在する異物を除去することができる。   When the electric vehicle 10 includes only the sweeping unit 109b and does not include the sweeping unit 109a, the control unit 107 determines that the distance between the vehicle and the power feeding unit 203 is less than the threshold value. In addition, the sweep unit 109b is moved from the housed state to the sweepable state. When the user of the electric vehicle 10 moves the electric vehicle 10 forward so that the power receiving unit 110 and the power feeding unit 203 face each other, the sweeping unit 109b passes the power feeding unit 203 and removes foreign matter existing on the power feeding unit 203. Can be removed.

また、電気自動車１０が掃出部１０９ａおよび掃出部１０９ｂの双方を備えている場合には、制御部１０７は、車両の進行方向に応じて、掃出部１０９ａまたは掃出部１０９ｂのいずれか一方を収納状態から掃出可能状態に移動させる。   Further, when the electric vehicle 10 includes both the sweep unit 109a and the sweep unit 109b, the control unit 107 selects either the sweep unit 109a or the sweep unit 109b according to the traveling direction of the vehicle. One is moved from the stowed state to the sweepable state.

すなわち、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になり、かつ、車両が後進して給電部２０３へ接近する場合、掃出部１０９ａおよび掃出部１０９ｂのうち掃出部１０９ａのみを掃出可能状態にする。これにより、車両の後進に伴って掃出部１０９ａは給電部２０３上を通過して給電部２０３上に存在する異物を除去することができる。   That is, when the distance between the vehicle and the power feeding unit 203 is less than the threshold value and the vehicle moves backward and approaches the power feeding unit 203, the control unit 107 sweeps the sweep unit 109a and the sweep unit 109b. Only the protruding portion 109a is set in a sweepable state. As a result, as the vehicle moves backward, the sweeping unit 109 a can pass through the power feeding unit 203 and remove foreign substances existing on the power feeding unit 203.

一方で、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になり、かつ、車両が前進して給電部２０３へ接近する場合、掃出部１０９ａおよび掃出部１０９ｂのうち掃出部１０９ｂのみを掃出可能状態にする。これにより、車両の前進に伴って掃出部１０９ｂは給電部２０３上を通過して給電部２０３上に存在する異物を除去することができる。   On the other hand, when the distance between the vehicle and the power feeding unit 203 is less than the threshold value and the vehicle moves forward and approaches the power feeding unit 203, the control unit 107 includes the sweep unit 109a and the sweep unit 109b. Only the sweep unit 109b is set in a sweepable state. As a result, as the vehicle advances, the sweep unit 109b can pass through the power supply unit 203 and remove foreign matter present on the power supply unit 203.

なお、制御部１０７は、シフトポジションセンサ１０３によって検出されたシフトポジションによって車両の進行方向を判断する。すなわち、制御部１０７は、シフトポジションが「リバース」の場合に車両が後進すると判断し、シフトポジションが「リバース」以外の場合に車両が前進すると判断する。   Note that the control unit 107 determines the traveling direction of the vehicle based on the shift position detected by the shift position sensor 103. That is, the control unit 107 determines that the vehicle moves backward when the shift position is “reverse”, and determines that the vehicle moves forward when the shift position is other than “reverse”.

このように、電気自動車１０への充電開始前に掃出部１０９ａまたは掃出部１０９ｂの一方を収納状態から掃出可能状態に移動させることにより、車両の移動に伴って、充電開始前から既に給電コイル上に存在している異物を除去することができる。   In this way, by moving one of the sweeping unit 109a or the sweeping unit 109b from the housed state to the sweepable state before the charging of the electric vehicle 10 is started, the vehicle has already moved from the start of charging with the movement of the vehicle. Foreign matter present on the power feeding coil can be removed.

また、電気自動車１０が掃出部１０９ａおよび掃出部１０９ｂの双方を備えることにより、給電コイル上の異物の除去にあたって、車両の進行方向に制限を受けることがなくなる。すなわち、電気自動車１０の駐車領域への駐車方向（前向き駐車または後ろ向き駐車）に依らずに、給電コイル上の異物の除去が可能となる。   In addition, since the electric vehicle 10 includes both the sweeping unit 109a and the sweeping unit 109b, the traveling direction of the vehicle is not restricted when the foreign matter on the power feeding coil is removed. In other words, the foreign matter on the power feeding coil can be removed without depending on the parking direction (forward parking or backward parking) of the electric vehicle 10 in the parking area.

また、電気自動車１０が掃出部１０９ａおよび掃出部１０９ｂの双方を備える場合に、車両の進行方向に応じて上記のようにいずれか一方の掃出部のみを掃出可能状態にすることにより、掃出部１０９ａまたは掃出部１０９ｂによる異物の巻き込みを防止して、新たな異物が給電部２０３上にのってしまうことを防止できる。   Further, when the electric vehicle 10 includes both the sweep unit 109a and the sweep unit 109b, by setting only one of the sweep units to a sweepable state as described above according to the traveling direction of the vehicle. Thus, it is possible to prevent the foreign matter from being caught by the sweeping portion 109a or the sweeping portion 109b, and to prevent a new foreign matter from getting on the power feeding portion 203.

なお、制御部１０７は、車両が停止状態にあり、かつ、受電部１１０が電気エネルギを受電している間は、掃出部１０９ａおよび掃出部１０９ｂの双方を掃出可能状態にしてもよい。これにより、充電中の車両周辺からの給電部２０３上への異物侵入の可能性を低くすることができる。車両が停止状態にあるか否かは、車速により判断可能である（車速＝０）。また、制御部１０７は、上記のように受電部１１０での電気エネルギの受電の開始・終了を制御するため、受電部１１０が電気エネルギを受電しているか否かを判断可能である。   Note that the control unit 107 may make both the sweep unit 109a and the sweep unit 109b sweepable while the vehicle is stopped and the power receiving unit 110 is receiving electrical energy. . Thereby, the possibility of foreign matter intrusion onto the power feeding unit 203 from around the vehicle being charged can be reduced. Whether or not the vehicle is stopped can be determined from the vehicle speed (vehicle speed = 0). Moreover, since the control part 107 controls the start / end of the electric power reception in the power receiving part 110 as mentioned above, it can judge whether the power receiving part 110 is receiving electric energy.

また、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になり、かつ、車両の現在の方位（自車方位）と車両駐車時の所定の方位との差が閾値未満にある場合に、掃出部１０９ａまたは掃出部１０９ｂの一方を収納状態から掃出可能状態に移動させてもよい。すなわち、制御部１０７は、たとえ車両と給電部２０３との間の距離が閾値未満になった場合でも、この所定の方位と自車方位との差が閾値未満になるまで、掃出部１０９ａおよび掃出部１０９ｂを掃出可能状態にしない。図５に示すように、車両が駐車領域に設置された給電部２０３に接近するほど、自車方位と車両駐車時の所定の方位との差が徐々に小さくなる。つまり、方位の差が閾値未満になると、距離の差が閾値未満になった時点よりも、さらに車両が給電部２０３に接近したことになる。このようにして、より給電部２０３に接近した時点で掃出部１０９ａ，１０９ｂを掃出可能状態にすることにより、掃出部１０９ａ，１０９ｂによる駐車領域付近の異物の巻き込みをさらに防止することができる。また、掃出部１０９ａ，１０９ｂが給電部２０３上を通過する可能性がさらに高まった時点で掃出部１０９ａ，１０９ｂを掃出可能状態にすることができるため、掃出部１０９ａ，１０９ｂの大きさ（例えば車幅方向の長さ）を小さくすることが可能になる。なお、方位の差の閾値は、例えば、２０°程度に設定するのが好ましい。また、車両の駐車領域への駐車方向（前向き駐車または後ろ向き駐車）によって自車方位は１８０°異なるため、制御部１０７は、その相違を考慮して駐車方向に応じて自車方位を補正するとよい。   In addition, the control unit 107 determines that the distance between the vehicle and the power feeding unit 203 is less than the threshold, and the difference between the current direction of the vehicle (vehicle direction) and the predetermined direction at the time of vehicle parking is less than the threshold. In some cases, one of the sweep unit 109a or the sweep unit 109b may be moved from the housed state to the sweepable state. That is, even if the distance between the vehicle and the power feeding unit 203 is less than the threshold value, the control unit 107 continues until the difference between the predetermined direction and the own vehicle direction is less than the threshold value. The sweep unit 109b is not set in a sweepable state. As shown in FIG. 5, the closer the vehicle is to the power supply unit 203 installed in the parking area, the smaller the difference between the vehicle direction and the predetermined direction when the vehicle is parked. That is, when the difference in azimuth is less than the threshold, the vehicle is closer to the power feeding unit 203 than when the difference in distance is less than the threshold. In this way, when the sweeping units 109a and 109b are brought into a sweepable state when approaching the power feeding unit 203, it is possible to further prevent foreign substances from being caught near the parking area by the sweeping units 109a and 109b. it can. In addition, since the sweeping units 109a and 109b can be set in a sweepable state when the possibility that the sweeping units 109a and 109b pass over the power feeding unit 203 is further increased, the size of the sweeping units 109a and 109b is increased. It is possible to reduce the height (for example, the length in the vehicle width direction). Note that the azimuth difference threshold is preferably set to about 20 °, for example. In addition, since the own vehicle direction differs by 180 ° depending on the parking direction (forward-facing parking or backward-facing parking) of the vehicle in the parking area, the control unit 107 may correct the own vehicle direction according to the parking direction in consideration of the difference. .

また、制御部１０７は、蓄電池１０８の充電率（SOC：State of Charge）を監視し、その充電率が閾値以上の場合は、車両と給電部２０３との間の距離が閾値未満になった場合でも、掃出部１０９ａ，１０９ｂを収納状態のまま維持するのが好ましい。また、蓄電池１０８の充電率が閾値以上の場合は、制御部１０７は、給電開始要求を通信部１１１に出力しない。ここで、充電率の閾値は、蓄電池１０８の満充電に相当する充電率に設定される。蓄電池１０８が満充電の状態にあるときは充電の必要がないため、制御部１０７から給電開始要求が出力されない。よって、給電部２０３から受電部１１０への電気エネルギの供給も行われないため、給電部２０３上の異物を除去する必要がないからである。掃出部１０９ａ，１０９ｂを収納状態のまま維持することにより、掃出部１０９ａ，１０９ｂを掃出可能状態に移動させるための電力の消費を抑えることができる。なお、充電率の閾値は、満充電により蓄電池１０８が劣化してしまわないように、１００％より小さい値に設定されてもよい。   Moreover, the control part 107 monitors the charging rate (SOC: State of Charge) of the storage battery 108, and when the charging rate is more than a threshold value, when the distance between a vehicle and the electric power feeding part 203 becomes less than a threshold value. However, it is preferable to keep the sweeping portions 109a and 109b in the stored state. When the charging rate of the storage battery 108 is equal to or greater than the threshold, the control unit 107 does not output a power supply start request to the communication unit 111. Here, the threshold of the charging rate is set to a charging rate corresponding to the full charge of the storage battery 108. When the storage battery 108 is in a fully charged state, there is no need for charging, and therefore no power supply start request is output from the control unit 107. Therefore, since no electric energy is supplied from the power feeding unit 203 to the power receiving unit 110, it is not necessary to remove foreign matter on the power feeding unit 203. By maintaining the sweeping units 109a and 109b in the housed state, it is possible to suppress power consumption for moving the sweeping units 109a and 109b to a sweepable state. Note that the threshold of the charging rate may be set to a value smaller than 100% so that the storage battery 108 does not deteriorate due to full charge.

また、電気自動車１０の利用者が、掃出部１０９ａ，１０９ｂが掃出可能状態にあるまま誤って車両を発進させてしまうと、車両の走行中に掃出部１０９ａ，１０９ｂが大きな異物を巻き込んでしまう等、好ましくない状況になってしまうことが考えられる。そこで、電気自動車１０は、掃出部１０９ａ，１０９ｂが収納状態または掃出可能状態のいずれの状態にあるかを電気自動車１０の利用者に報知する報知部を備えてもよい。これにより、電気自動車１０の利用者が、掃出部１０９ａ，１０９ｂが掃出可能状態にあるまま誤って車両を発進させてしまうことを予防できる。なお、上記報知部は、例えば、掃出部１０９ａ，１０９ｂの状態を画像で表示する表示部、掃出部１０９ａ，１０９ｂの状態を音声で出力する音声出力部、または、掃出部１０９ａ，１０９ｂの状態をライトの点灯状態または点滅状態で示す灯火部等により構成することができる。   In addition, if the user of the electric vehicle 10 starts the vehicle accidentally while the sweeping units 109a and 109b are in a sweepable state, the sweeping units 109a and 109b entrap large foreign objects while the vehicle is running. It may be an unfavorable situation, for example. Therefore, the electric vehicle 10 may include a notification unit that notifies the user of the electric vehicle 10 whether the sweep units 109a and 109b are in the housed state or the sweepable state. Thereby, it can prevent that the user of the electric vehicle 10 starts the vehicle accidentally while the sweeping units 109a and 109b are in the sweepable state. The notification unit is, for example, a display unit that displays the states of the sweeping units 109a and 109b as images, an audio output unit that outputs the states of the sweeping units 109a and 109b by voice, or the sweeping units 109a and 109b. Can be configured by a lighting section or the like that indicates the lighting state of the light by lighting or blinking.

また、電気自動車１０の利用者が電気自動車１０の充電の途中で充電を中断して車両を発進させたい場合等を考慮して、電気自動車１０は、掃出可能状態にある掃出部１０９ａ，１０９ｂを強制的に収納状態にさせる指示を制御部１０７に行うための指示入力部を備えてもよい。電気自動車１０の利用者が指示入力部を用いて上記指示を行うことにより、掃出部１０９ａ，１０９ｂが掃出可能状態にあるまま車両が発進してしまうことを防止できる。   In consideration of a case where the user of the electric vehicle 10 wants to start charging the vehicle while charging the electric vehicle 10 in the middle of charging, the electric vehicle 10 includes the sweeping unit 109a, An instruction input unit may be provided for instructing the control unit 107 to forcibly put the 109b into the storage state. When the user of the electric vehicle 10 gives the instruction using the instruction input unit, the vehicle can be prevented from starting while the sweeping units 109a and 109b are in a sweepable state.

次いで、図６を用いて、本実施の形態に係る電気自動車１０の動作フローの一例について説明する。図６には、一例として、制御部１０７が行う上記複数の制御を組み合わせて実施する場合を示す。   Next, an example of an operation flow of the electric vehicle 10 according to the present embodiment will be described with reference to FIG. FIG. 6 shows, as an example, a case where the plurality of controls performed by the control unit 107 are performed in combination.

図６のＳ６０１において、制御部１０７は、車両が給電部２０３の付近にいるか否か判断する。すなわち、制御部１０７は、車両と給電部２０３との間の距離が閾値未満になった場合に、車両が給電部２０３の付近に位置していると判断する。   In S <b> 601 of FIG. 6, the control unit 107 determines whether the vehicle is near the power feeding unit 203. That is, the control unit 107 determines that the vehicle is located in the vicinity of the power supply unit 203 when the distance between the vehicle and the power supply unit 203 is less than the threshold value.

車両が給電部２０３の付近に位置している場合（Ｓ６０１：ＹＥＳ）、制御部１０７は、自車方位と車両駐車時の所定の方位との差が閾値未満か否か判断する（Ｓ６０２）。   When the vehicle is located in the vicinity of the power feeding unit 203 (S601: YES), the control unit 107 determines whether or not the difference between the vehicle direction and a predetermined direction when the vehicle is parked is less than a threshold value (S602).

Ｓ６０１およびＳ６０２の双方が「ＹＥＳ」となるまで、Ｓ６０１およびＳ６０２の処理が繰り返し実行される（Ｓ６０１：ＮＯまたはＳ６０２：ＮＯ）。   Until both S601 and S602 are “YES”, the processes of S601 and S602 are repeatedly executed (S601: NO or S602: NO).

自車方位と車両駐車時の所定の方位との差が閾値未満の場合（Ｓ６０２：ＹＥＳ）、制御部１０７は、車両のシフトポジションが「リバース」か否か判断する（Ｓ６０３）。   When the difference between the own vehicle direction and the predetermined direction at the time of parking the vehicle is less than the threshold (S602: YES), the control unit 107 determines whether or not the shift position of the vehicle is “reverse” (S603).

シフトポジションが「リバース」の場合（Ｓ６０３：ＹＥＳ）、制御部１０７は、受電部１１０より車両の後方側に配置される掃出部１０９ａを収納状態から掃出可能状態にする（Ｓ６０４）。一方で、シフトポジションが「リバース以外」の場合（Ｓ６０３：ＮＯ）、制御部１０７は、受電部１１０より車両の前方側に配置される掃出部１０９ｂを収納状態から掃出可能状態にする（Ｓ６０５）。   When the shift position is “reverse” (S603: YES), the control unit 107 sets the sweeping unit 109a disposed on the rear side of the vehicle from the power receiving unit 110 to the sweepable state from the housed state (S604). On the other hand, when the shift position is “other than reverse” (S603: NO), the control unit 107 changes the sweeping unit 109b disposed on the front side of the vehicle from the power receiving unit 110 to the sweepable state from the housed state (see FIG. S605).

そして、Ｓ６０４またはＳ６０５からＳ６０６までの間に、電気自動車１０の利用者は車両を駐車領域に移動させて受電部１１０を給電部２０３に正対させる。この移動の過程において、掃出部１０９ａまたは掃出部１０９ｂが給電部２０３上を通過して、給電部２０３上にのっている異物を給電部２０３上から掃き出して除去する。   Then, during S604 or S605 to S606, the user of the electric vehicle 10 moves the vehicle to the parking area so that the power receiving unit 110 faces the power feeding unit 203. In the process of this movement, the sweeping unit 109a or the sweeping unit 109b passes over the power feeding unit 203, and the foreign matter on the power feeding unit 203 is swept out from the power feeding unit 203 and removed.

次いで、Ｓ６０６では、制御部１０７は、電気自動車１０の利用者からの充電開始要求を待つ（Ｓ６０６：ＮＯ）。この充電開始要求は、車速がゼロのときにのみ、すなわち、車両が停止中のときにのみ行えるようにするのが好ましい。   Next, in S606, the control unit 107 waits for a charge start request from the user of the electric vehicle 10 (S606: NO). This charging start request is preferably made only when the vehicle speed is zero, that is, only when the vehicle is stopped.

電気自動車１０の利用者からの充電開始要求があった場合（Ｓ６０６：ＹＥＳ）、制御部１０７は、給電部２０３から受電部１１０への電気エネルギの供給開始（Ｓ６０８）に備えて、収納状態にあるいずれか一方の掃出部も掃出可能状態にして、給電部２０３上への新たな異物の侵入を防ぐ（Ｓ６０７）。   When there is a charge start request from the user of the electric vehicle 10 (S606: YES), the control unit 107 is in the storage state in preparation for the start of supply of electric energy from the power supply unit 203 to the power reception unit 110 (S608). Any one of the sweeping units is also enabled to be swept away to prevent new foreign matter from entering the power feeding unit 203 (S607).

Ｓ６０８では、制御部１０７は、給電開始要求を通信部１１１に出力して、給電装置２０に電気自動車１０への電気エネルギの供給を開始させる。これにより、電気自動車１０への充電が開示される。   In step S <b> 608, the control unit 107 outputs a power supply start request to the communication unit 111 to cause the power supply apparatus 20 to start supplying electric energy to the electric vehicle 10. Thereby, charging to the electric vehicle 10 is disclosed.

Ｓ６０９では、制御部１０７は、電気自動車の充電の終了を待つ（Ｓ６０９：ＮＯ）。そして、制御部１０７は、例えば、蓄電池１０８の充電率が所定の閾値に達したとき、または、電気自動車１０の利用者から充電終了要求があったとき等に給電終了要求を通信部１１１に出力して、電気自動車１０への充電を終了させる（Ｓ６０９：ＹＥＳ）。   In S609, the control unit 107 waits for the end of charging of the electric vehicle (S609: NO). Then, the control unit 107 outputs a power supply end request to the communication unit 111 when, for example, the charging rate of the storage battery 108 reaches a predetermined threshold value or when there is a charge end request from the user of the electric vehicle 10. Then, the charging of the electric vehicle 10 is terminated (S609: YES).

Ｓ６１０では、制御部１０７は、掃出部１０９ａおよび掃出部１０９ｂの双方を掃出可能状態から収納状態にする。   In step S610, the control unit 107 changes both the sweep unit 109a and the sweep unit 109b from the sweepable state to the retracted state.

以上、電気自動車１０の動作フローの一例について説明した。   Heretofore, an example of the operation flow of the electric vehicle 10 has been described.

なお、掃出部１０９ａ，１０９ｂを掃出可能状態にする際には、掃出部１０９ａ，１０９ｂの刷毛部３０１を地面に対して垂直にするのではなく、図７に示すように、掃出部１０９ａ，１０９ｂの刷毛部３０１を地面に対してやや斜めにするのが好ましい。掃出部１０９ａ，１０９ｂの刷毛部３０１を地面に対して斜めにすることにより、刷毛部３０１と給電部２０３との接触面積が大きくなるため、給電部２０３上の異物の除去効率を高めることができる。   When the sweeping units 109a and 109b are in a sweepable state, the brush unit 301 of the sweeping units 109a and 109b is not perpendicular to the ground, but is swept as shown in FIG. It is preferable that the brush portions 301 of the portions 109a and 109b are slightly inclined with respect to the ground. By making the brush portion 301 of the sweeping portions 109a and 109b oblique to the ground, the contact area between the brush portion 301 and the power feeding portion 203 is increased, so that the removal efficiency of foreign matter on the power feeding portion 203 can be improved. it can.

また、掃出部１０９ａ，１０９ｂは、刷毛部に代えて、図８に示すような、刷毛部よりも耐久性に優れるローラ部を備えてもよい。ローラ部は回転力により異物を除去するため、刷毛部よりも異物除去効率が高い。さらにローラ部をモータ等で強制的に回転させることにより、さらに異物除去効率を高めることができる。   Further, the sweeping portions 109a and 109b may be provided with a roller portion having higher durability than the brush portion, as shown in FIG. 8, instead of the brush portion. Since the roller portion removes foreign matter by rotational force, the foreign matter removal efficiency is higher than that of the brush portion. Further, the foreign matter removal efficiency can be further increased by forcibly rotating the roller portion with a motor or the like.

以上、本発明の実施の形態について説明した。   The embodiment of the present invention has been described above.

なお、上記実施の形態では、本発明をハードウェアで構成する場合を例にとって説明したが、本発明はハードウェアとの連携においてソフトウェアでも実現することも可能である。   Note that although cases have been described with the above embodiment as examples where the present invention is configured by hardware, the present invention can also be realized by software in cooperation with hardware.

また、上記実施の形態の説明に用いた各機能ブロックは、典型的には集積回路であるＬＳＩとして実現される。これらは個別に１チップ化されてもよいし、一部または全てを含むように１チップ化されてもよい。ここでは、ＬＳＩとしたが、集積度の違いにより、ＩＣ、システムＬＳＩ、スーパーＬＳＩ、ウルトラＬＳＩと呼称されることもある。   Each functional block used in the description of the above embodiment is typically realized as an LSI which is an integrated circuit. These may be individually made into one chip, or may be made into one chip so as to include a part or all of them. The name used here is LSI, but it may also be called IC, system LSI, super LSI, or ultra LSI depending on the degree of integration.

また、集積回路化の手法はＬＳＩに限るものではなく、専用回路または汎用プロセッサで実現してもよい。ＬＳＩ製造後に、プログラムすることが可能なＦＰＧＡ（Field Programmable Gate Array）や、ＬＳＩ内部の回路セルの接続や設定を再構成可能なリコンフィギュラブル・プロセッサーを利用してもよい。   Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. An FPGA (Field Programmable Gate Array) that can be programmed after manufacturing the LSI, or a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.

さらには、半導体技術の進歩または派生する別技術によりＬＳＩに置き換わる集積回路化の技術が登場すれば、当然、その技術を用いて機能ブロックの集積化を行ってもよい。バイオ技術の適用等が可能性としてありえる。   Further, if integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology or a derivative other technology, it is naturally also possible to carry out function block integration using this technology. Biotechnology can be applied.

本発明は、電磁誘導を用いた非接触充電によって充電される電気自動車等に好適である。   The present invention is suitable for an electric vehicle or the like that is charged by non-contact charging using electromagnetic induction.

１０ 電気自動車
２０ 給電装置
３０ 外部電源
１０１ 角速度センサ
１０２ 車速センサ
１０３ シフトポジションセンサ
１０４ ＧＰＳ受信部
１０５ 地図データ
１０６ 自車位置検出部
１０７ 制御部
１０８ 蓄電池
１０９ａ，１０９ｂ 掃出部
１１０ 受電部
１１１ 通信部
２０１ 通信部
２０２ 制御部
２０３ 給電部 DESCRIPTION OF SYMBOLS 10 Electric vehicle 20 Electric power feeder 30 External power supply 101 Angular velocity sensor 102 Vehicle speed sensor 103 Shift position sensor 104 GPS receiving part 105 Map data 106 Own vehicle position detection part 107 Control part 108 Storage battery 109a, 109b Sweep part 110 Power receiving part 111 Communication part 201 Communication unit 202 Control unit 203 Power supply unit

Claims (11)

車両の底面に配置され、地面に設置された給電部から非接触で供給される電気エネルギを受電する受電部と、
前記電気エネルギを蓄積する蓄電池と、
前記底面に配置され、収納状態と掃出可能状態との間を可動であり、前記掃出可能状態において前記給電部上の異物を掃き出す掃出部と、
前記車両と前記給電部との間の距離が閾値未満になった場合に、前記掃出部を前記収納状態から前記掃出可能状態に移動させる制御部と、
を具備する電気自動車。 A power receiving unit that is disposed on the bottom surface of the vehicle and receives electrical energy supplied in a non-contact manner from a power feeding unit installed on the ground;
A storage battery for storing the electrical energy;
A sweep unit disposed on the bottom surface, movable between a storage state and a sweepable state, and sweeps out foreign matter on the power feeding unit in the sweepable state;
A control unit that moves the sweeping unit from the housed state to the sweepable state when a distance between the vehicle and the power feeding unit is less than a threshold;
An electric vehicle comprising: 前記制御部は、前記距離が前記閾値未満になった場合で、かつ、前記車両の現在の方位と車両駐車時の所定の方位との差が前記閾値未満にある場合に、前記掃出部を前記収納状態から前記掃出可能状態に移動させる、
請求項１記載の電気自動車。 When the distance is less than the threshold, and the difference between the current direction of the vehicle and a predetermined direction when the vehicle is parked is less than the threshold, the control unit may Move from the stowed state to the sweepable state,
The electric vehicle according to claim 1. 前記制御部は、前記蓄電池の充電率が閾値以上の場合は、前記距離が前記閾値未満になった場合でも、前記掃出部を前記収納状態のまま維持する、
請求項１記載の電気自動車。 When the charging rate of the storage battery is equal to or greater than a threshold, the control unit maintains the sweeping unit in the housed state even when the distance is less than the threshold.
The electric vehicle according to claim 1. 前記掃出部は、
前記受電部より前記車両の前方側に配置される第１掃出部と、
前記受電部より前記車両の後方側に配置される第２掃出部と、を具備する、
請求項１記載の電気自動車。 The sweep unit is
A first sweeping unit disposed on the front side of the vehicle from the power receiving unit;
A second sweeping unit disposed on the rear side of the vehicle from the power receiving unit,
The electric vehicle according to claim 1. 前記制御部は、前記車両が前進して前記給電部へ接近する場合、前記第１掃出部と前記第２掃出部のうち前記第１掃出部のみを前記収納状態から前記掃出可能状態に移動させる、
請求項４記載の電気自動車。 When the vehicle moves forward and approaches the power feeding unit, the control unit can sweep only the first sweeping unit from the housed state out of the first sweeping unit and the second sweeping unit. Move to the state,
The electric vehicle according to claim 4. 前記制御部は、前記車両が後進して前記給電部へ接近する場合、前記第１掃出部と前記第２掃出部のうち前記第２掃出部のみを前記収納状態から前記掃出可能状態に移動させる、
請求項４記載の電気自動車。 When the vehicle moves backward and approaches the power feeding unit, the control unit can sweep only the second sweeping unit from the housed state out of the first sweeping unit and the second sweeping unit. Move to the state,
The electric vehicle according to claim 4. 前記制御部は、前記車両が停止状態にあり、かつ、前記受電部が前記電気エネルギを受電している間は、前記第１掃出部および前記第２掃出部の双方を前記掃出可能状態にする、
請求項４記載の電気自動車。 The control unit can sweep both the first sweeping unit and the second sweeping unit while the vehicle is in a stopped state and the power receiving unit is receiving the electrical energy. State
The electric vehicle according to claim 4. 前記掃出部の車幅方向の長さは、前記給電部の車幅方向の長さより大きい、
請求項１記載の電気自動車。 The length of the sweep portion in the vehicle width direction is greater than the length of the power feeding portion in the vehicle width direction,
The electric vehicle according to claim 1. 前記掃出部は、前記受電部より前記車両の前方側または前記受電部より前記車両の後方側の少なくとも一方に配置され、回転軸を中心とした移動により前記収納状態または前記掃出可能状態をとり、
前記制御部は、前記掃出部を前記受電部側に回転させて前記収納状態にする、
請求項１記載の電気自動車。 The sweeping unit is disposed on at least one of the front side of the vehicle from the power receiving unit or the rear side of the vehicle from the power receiving unit, and the storage state or the sweepable state is achieved by movement around a rotation axis. And
The control unit rotates the sweeping unit toward the power receiving unit to enter the housed state.
The electric vehicle according to claim 1. 前記掃出部が前記収納状態または前記掃出可能状態のいずれの状態にあるかを報知する報知部、をさらに具備する、
請求項１記載の電気自動車。 A notification unit for notifying whether the sweeping unit is in the housed state or the sweepable state;
The electric vehicle according to claim 1. 前記掃出可能状態にある前記掃出部を強制的に前記収納状態にさせる指示を前記制御部に行うための指示入力部、をさらに具備する、
請求項１記載の電気自動車。 An instruction input unit for giving an instruction to the control unit to force the sweeping unit in the sweepable state to the storage state;
The electric vehicle according to claim 1.
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