JP2019166922A - Bicycle occupant protection device of vehicle - Google Patents

Bicycle occupant protection device of vehicle Download PDF

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JP2019166922A
JP2019166922A JP2018055044A JP2018055044A JP2019166922A JP 2019166922 A JP2019166922 A JP 2019166922A JP 2018055044 A JP2018055044 A JP 2018055044A JP 2018055044 A JP2018055044 A JP 2018055044A JP 2019166922 A JP2019166922 A JP 2019166922A
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bicycle
vehicle
bumper
size
normal position
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達 晃一
Koichi Tatsu
晃一 達
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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Abstract

To properly protect an occupant of a bicycle during a collision with the bicycle.SOLUTION: A bumper 14 is held at a normal position extending in a vehicle width direction on a lower side of a front surface section of a vehicle and is supported on a vehicle body side through an actuator 17 so that the bumper can move forward from the normal position. The actuator 17 of a bumper moving device 16 is elongated when air is supplied to the inside of a cylinder and moves the bumper 14 forward from the normal position. A bicycle determination section 26 and a collision detection section 28 of an ECU 15 determine whether the front surface section of the vehicle collides with a bicycle. A control section 29 controls an air valve 19 and a tilting mechanism of the bumper moving device 16 so as to move the bumper 14 forward when the collision detection section 28 determines a state before a collision in which a collision of an object determined as the bicycle by the bicycle determination section 26 with the front surface section of the vehicle cannot be avoided.SELECTED DRAWING: Figure 2

Description

本開示は、車両の自転車乗員保護装置に関する。   The present disclosure relates to a bicycle occupant protection device for a vehicle.

特許文献1には、歩行者、自転車及び野生動物との衝突の際にその影響を軽減するための車両における衝突安全装置が記載されている。トラックは、衝突保護装置とセンサー、及び走行方向の相対速度と距離を記録するコンピュータ装置を備える。車両と障害物との距離が一定の閾値を超えると、センサーは電気式発火装置のような装置により発射装薬を起動する。これにより、バンパーの一端は垂直ピンを軸として前方に突出する。   Patent Document 1 describes a collision safety device in a vehicle for reducing the influence of a collision with pedestrians, bicycles, and wild animals. The truck includes a collision protection device, a sensor, and a computer device that records the relative speed and distance in the direction of travel. When the distance between the vehicle and the obstacle exceeds a certain threshold, the sensor activates the propellant by a device such as an electric ignition device. Thus, one end of the bumper projects forward with the vertical pin as an axis.

特表2003−517395号公報Special table 2003-517395 gazette

特許文献1に記載の衝突保護装置では、車両と自転車との衝突時には、バンパーの一端が前方へ突出し、自転車を車両の前方から車両の前側方へ押し出す。自転車は、重心が比較的高い位置にあるので、突出するバンパーと自転車との当接によって、自転車及び乗員に対して乗員の頭部が路面側へ向かう方向にモーメントが作用してしまうおそれがあり、乗員を適切に保護できない可能性がある。   In the collision protection device described in Patent Literature 1, at the time of a collision between the vehicle and the bicycle, one end of the bumper projects forward, and pushes the bicycle from the front of the vehicle toward the front side of the vehicle. Since the center of gravity of a bicycle is relatively high, there is a possibility that a moment may act on the bicycle and the occupant in the direction of the head of the occupant toward the road surface due to the contact between the protruding bumper and the bicycle. , May not be able to protect the passengers properly.

そこで、本開示は、自転車との衝突時に自転車の乗員を適切に保護することが可能な車両の自転車乗員保護装置の提供を目的とする。   Therefore, an object of the present disclosure is to provide a bicycle occupant protection device for a vehicle that can appropriately protect a bicycle occupant at the time of collision with the bicycle.

上記課題を解決するため、本発明の第1の態様の車両の自転車乗員保護装置は、バンパとバンパ移動手段と自転車衝突判定手段と制御手段とを備える。バンパは、車両の前面部の下方の通常位置から、前面部よりも前方へ前進可能に車体側に支持されて通常時には通常位置に保持される可動領域を少なくとも一部に有し、車両の前面部の下方で車幅方向に延びる。バンパ移動手段は、バンパの可動領域を通常位置から前方へ移動させる。自転車衝突判定手段は、車両の前面部と自転車とが衝突するか否かを判定する。制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、バンパの可動領域を通常位置から前方へ所定の距離だけ移動させるようにバンパ移動手段を制御する。   In order to solve the above problems, a bicycle occupant protection device for a vehicle according to a first aspect of the present invention includes a bumper, a bumper moving means, a bicycle collision determination means, and a control means. The bumper has at least a part of a movable region that is supported on the vehicle body side so as to be able to advance forward from the normal position below the front portion of the vehicle and is normally held at the normal position. It extends in the vehicle width direction below the part. The bumper moving means moves the movable area of the bumper forward from the normal position. The bicycle collision determination means determines whether or not the front portion of the vehicle and the bicycle collide. The control means controls the bumper moving means so as to move the movable region of the bumper forward from the normal position by a predetermined distance when the bicycle collision determination means determines that the front portion of the vehicle and the bicycle collide.

上記構成では、制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、バンパの可動領域を通常位置から前方へ所定の距離だけ移動させるようにバンパ移動手段を制御する。このため、上記所定の距離を、自転車の乗員を保護するのに特化した距離に設定することによって、自転車との衝突時に自転車の乗員を適切に保護することができる。例えば、バンパを上記所定の距離だけ前方へ移動した際の車両の前面部からバンパの前面までの距離が、所定の大きさの自転車のハンドルの端部と車輪の側面との間の距離になるように、上記所定の距離を設定した場合には、車両の前面部が上記所定の大きさの自転車の側面に衝突すると、車両の前面部が自転車のハンドルの端部に衝突するのと略同時に、バンパが自転車の車輪の側面に当接するので、ハンドルのみを前方へ押す場合に比べて、乗員の頭部が前方の路面側へ向かう方向へ作用するモーメントを抑えることができる。従って、自転車との衝突時に自転車の乗員を適切に保護することができる。   In the above configuration, when the bicycle collision determination unit determines that the front portion of the vehicle and the bicycle collide, the control unit moves the bumper moving unit from the normal position to the front by a predetermined distance. Control. For this reason, by setting the predetermined distance to a distance specialized for protecting the bicycle occupant, the bicycle occupant can be appropriately protected at the time of collision with the bicycle. For example, when the bumper is moved forward by the predetermined distance, the distance from the front surface of the vehicle to the front surface of the bumper is the distance between the end of the bicycle handlebar having a predetermined size and the side surface of the wheel. Thus, when the predetermined distance is set, when the front portion of the vehicle collides with the side surface of the bicycle having the predetermined size, the front portion of the vehicle collides with the end portion of the bicycle handle. Since the bumper contacts the side surface of the bicycle wheel, the moment acting on the occupant's head in the direction toward the front road surface can be suppressed as compared with the case where only the handle is pushed forward. Therefore, the bicycle occupant can be appropriately protected at the time of collision with the bicycle.

なお、自転車衝突判定手段は、車両の前面部への物体の衝突を検知可能な衝突検知手段と、車両の前方の物体が自転車であるか否かを判定する自転車判定手段とによって構成されてもよい。   The bicycle collision determination means may be constituted by a collision detection means that can detect the collision of an object with the front portion of the vehicle and a bicycle determination means that determines whether or not the object in front of the vehicle is a bicycle. Good.

本発明の第2の態様は、上記第1の態様の自転車乗員保護装置であって、サイズ検出手段を備える。サイズ検出手段は、自転車の大きさを検出する。バンパ移動手段は、上記所定の距離を調節可能である。制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、サイズ検出手段が検出した自転車の大きさに応じた距離だけバンパの可動領域を通常位置から前方へ移動させるようにバンパ移動手段を制御する。   A second aspect of the present invention is the bicycle occupant protection device according to the first aspect, and includes a size detection means. The size detection means detects the size of the bicycle. The bumper moving means can adjust the predetermined distance. The control means moves the movable area of the bumper forward from the normal position by a distance corresponding to the size of the bicycle detected by the size detection means when the bicycle collision determination means determines that the front part of the vehicle collides with the bicycle. Control the bumper moving means.

上記構成では、制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、自転車の大きさに応じた距離だけバンパの可動領域を通常位置から前方へ移動させるので、ハンドルの端部と車輪の側面との間の距離(以下、ハンドル車輪間距離という。)が異なる各種の自転車に対応させて、乗員の頭部が前方の路面側へ向かう方向へ作用するモーメントを抑えることができ、自転車の乗員を保護することができる。   In the above configuration, the control means moves the movable region of the bumper forward from the normal position by a distance corresponding to the size of the bicycle when the bicycle collision determination means determines that the front portion of the vehicle collides with the bicycle. The moment that the occupant's head acts in the direction toward the front road surface corresponding to various bicycles with different distances between the end of the handle and the side of the wheel (hereinafter referred to as the handle-to-wheel distance). Can be suppressed, and bicycle occupants can be protected.

本発明の第3の態様は、上記第2の態様の自転車乗員保護装置であって、制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、サイズ検出手段が検出した自転車の大きさが予め設定された基準の大きさよりも大きい場合には、第1距離だけバンパの可動領域を通常位置から前方へ移動させるようにバンパ移動手段を制御し、サイズ検出手段が検出した自転車の大きさが基準の大きさよりも小さい場合には、第1距離よりも短い第2距離だけバンパの可動領域を通常位置から前方へ移動させるようにバンパ移動手段を制御する。   A third aspect of the present invention is the bicycle occupant protection device according to the second aspect, wherein the control means detects the size when the bicycle collision determination means determines that the front portion of the vehicle and the bicycle collide. If the size of the detected bicycle is larger than a predetermined reference size, the bumper moving means is controlled to move the movable area of the bumper forward from the normal position by the first distance, and the size detecting means When the size of the detected bicycle is smaller than the reference size, the bumper moving means is controlled so as to move the movable region of the bumper forward from the normal position by a second distance shorter than the first distance.

上記構成では、制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、自転車の大きさが基準の大きさよりも大きい場合には、第1距離だけバンパの可動領域を通常位置から前方へ移動させ、自転車の大きさが基準の大きさよりも小さい場合には、第1距離よりも短い第2距離だけバンパの可動領域を通常位置から前方へ移動させる。このため、例えば、第1距離を、基準の大きさよりも大きい大人用の自転車のハンドル車輪間距離に設定し、第2距離を、基準の大きさよりも小さい子供用の自転車のハンドル車輪間距離に設定するなどして、大きさの異なる自転車の乗員を好適に保護することができる。   In the above configuration, the control means moves the bumper by the first distance when the bicycle collision determination means determines that the front surface of the vehicle collides with the bicycle and the bicycle size is larger than the reference size. When the area is moved forward from the normal position and the size of the bicycle is smaller than the reference size, the movable area of the bumper is moved forward from the normal position by a second distance shorter than the first distance. Therefore, for example, the first distance is set to the distance between the handle wheels of the adult bicycle that is larger than the reference size, and the second distance is set to the distance between the handle wheels of the child bicycle that is smaller than the reference size. By setting it, it is possible to suitably protect bicycle occupants of different sizes.

本発明の第4の態様は、上記第1の態様〜上記第3の態様のいずれかの自転車乗員保護装置であって、通常位置から上記所定の距離だけ前方へ移動したバンパの可動領域は、通常位置よりも下方に配置される。   A fourth aspect of the present invention is the bicycle occupant protection device according to any one of the first to third aspects, wherein the movable region of the bumper moved forward from the normal position by the predetermined distance is: It is arranged below the normal position.

一般に、所定の大きさの自転車(平均的な大きさの自転車等)のペダルが最も低い位置に配置されるときのペダルの高さ位置は、通常位置のバンパよりも下方に配置される。上記構成では、通常位置から上記所定の距離だけ前方へ移動したバンパの可動領域が、通常位置よりも下方に配置されるので、通常位置から上記所定の距離だけ前方へ移動したバンパの可動領域の高さ位置を、上記所定の大きさの自転車のペダルが最も低い位置に配置されるときのペダルの高さ位置よりも下方に設定することができる。このため、通常位置から前方へ移動したバンパの可動領域と自転車のペダルとの当接を回避して、車両の前面部が自転車のハンドルの端部に衝突するのと略同時にバンパの可動領域を自転車の車輪の側面に当接させることができる。   Generally, when a pedal of a predetermined size bicycle (an average size bicycle or the like) is disposed at the lowest position, the height position of the pedal is disposed below the bumper at the normal position. In the above configuration, since the movable area of the bumper moved forward from the normal position by the predetermined distance is disposed below the normal position, the movable area of the bumper moved forward from the normal position by the predetermined distance is set. The height position can be set lower than the height position of the pedal when the bicycle pedal of the predetermined size is disposed at the lowest position. For this reason, avoiding contact between the movable area of the bumper moved forward from the normal position and the pedal of the bicycle, the movable area of the bumper is set substantially simultaneously with the collision of the front portion of the vehicle with the end of the bicycle handlebar. It can be brought into contact with the side surface of the bicycle wheel.

本発明の第5の態様は、上記第1の態様〜上記第4の態様のいずれかの自転車乗員保護装置であって、車輪検出手段を備える。車輪検出手段は、自転車の車輪の位置を検出する。バンパの可動領域は、車幅方向の異なる位置に複数設けられる。制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、バンパの複数の可動領域のうち車輪検出手段が検出した自転車の車輪に当接可能な可動領域を通常位置から前方へ移動させるようにバンパ移動手段を制御する。   A fifth aspect of the present invention is the bicycle occupant protection device according to any one of the first aspect to the fourth aspect described above, and includes a wheel detection unit. The wheel detection means detects the position of the wheel of the bicycle. A plurality of movable regions of the bumper are provided at different positions in the vehicle width direction. When the bicycle collision determination unit determines that the front part of the vehicle collides with the bicycle, the control unit normally selects a movable region that can contact the bicycle wheel detected by the wheel detection unit from the plurality of movable regions of the bumper. The bumper moving means is controlled to move forward from the position.

上記構成では、バンパの可動領域は、車幅方向の異なる位置に複数設けられ、制御手段は、車両の前面部と自転車とが衝突すると自転車衝突判定手段が判定した際に、複数のバンパの可動領域のうち車輪検出手段が検出した自転車の車輪に当接可能な可動領域を通常位置から前方へ移動させる。このため、通常位置から前方へ移動したバンパの可動領域と自転車のペダルとの当接を回避して、車両の前面部が自転車のハンドルの端部に衝突するのと略同時にバンパの可動領域を自転車の車輪の側面に当接させることができる。   In the above configuration, a plurality of movable regions of the bumper are provided at different positions in the vehicle width direction, and the control unit moves the plurality of bumpers when the bicycle collision determination unit determines that the front portion of the vehicle collides with the bicycle. The movable region that can contact the bicycle wheel detected by the wheel detection means in the region is moved forward from the normal position. For this reason, avoiding contact between the movable area of the bumper moved forward from the normal position and the pedal of the bicycle, the movable area of the bumper is set substantially simultaneously with the collision of the front portion of the vehicle with the end of the bicycle handlebar. It can be brought into contact with the side surface of the bicycle wheel.

本開示によれば、自転車との衝突時に自転車の乗員を適切に保護することができる。   According to this indication, a crew member of a bicycle can be protected appropriately at the time of a collision with a bicycle.

本発明の第1実施形態に係る車両の外観図であり、(a)は正面図であり、(b)は側面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the vehicle which concerns on 1st Embodiment of this invention, (a) is a front view, (b) is a side view. 本発明の第1実施形態に係る自転車乗員保護装置のブロック図である。1 is a block diagram of a bicycle occupant protection device according to a first embodiment of the present invention. 図1の車両の自転車乗員保護装置が作動した状態を示す概略側面図である。It is a schematic side view which shows the state which the bicycle occupant protection apparatus of the vehicle of FIG. 1 act | operated. 図3の要部の拡大図である。It is an enlarged view of the principal part of FIG. 自転車乗員保護処理のフローチャートである。It is a flowchart of a bicycle occupant protection process. 本発明の第2実施形態に係る車両の外観図であり、(a)は正面図であり、(b)は側面図である。It is an external view of the vehicle which concerns on 2nd Embodiment of this invention, (a) is a front view, (b) is a side view. 本発明の第2実施形態に係る自転車乗員保護装置のブロック図である。It is a block diagram of the bicycle occupant protection device according to the second embodiment of the present invention. 図6の車両の自転車乗員保護装置が作動した状態を示す概略平面図である。It is a schematic plan view which shows the state which the bicycle occupant protection apparatus of the vehicle of FIG. 6 act | operated.

以下、本発明の第1実施形態を図面に基づいて説明する。なお、各図において、FRは車両の前方を、UPは上方を、INは車幅方向内側をそれぞれ示す。また、以下の説明において、左右方向は車両前方を向いた状態での左右方向を意味する。   Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. Moreover, in the following description, the left-right direction means the left-right direction with the vehicle facing forward.

図1に示すように、本実施形態に係る自転車乗員保護装置10を適用した車両1は、キャブ2が概ねエンジン(図示省略)の上方に配置されるキャブオーバー型のトラックであって、フロントウィンドウ3の下方でフロントパネル4が起立している。すなわち、車両1の前面部1aは、キャブ2の前面部であり、フロントウィンドウ3の前面部及びフロントパネル4の前面4a等を含む。   As shown in FIG. 1, a vehicle 1 to which a bicycle occupant protection device 10 according to this embodiment is applied is a cab-over type truck in which a cab 2 is generally disposed above an engine (not shown), and includes a front window. The front panel 4 stands up below 3. That is, the front surface portion 1a of the vehicle 1 is the front surface portion of the cab 2, and includes the front surface portion of the front window 3, the front surface 4a of the front panel 4, and the like.

フロントパネル4は、前後方向と交叉する板状に形成され、フロントウィンドウ3の下方で、側面視において略鉛直方向に延びている。なお、図示しないが、フロントパネル4の上部はフロントウィンドウ3に向けて傾斜していてもよい。   The front panel 4 is formed in a plate shape that intersects with the front-rear direction, and extends in a substantially vertical direction below the front window 3 in a side view. Although not shown, the upper part of the front panel 4 may be inclined toward the front window 3.

図1及び図2に示すように、自転車乗員保護装置10は、車速センサ11と、車両前方用カメラ12と、ミリ波レーダ13と、可動式バンパ(バンパ)14(以下、単にバンパ14という。)と、バンパ移動装置(バンパ移動手段)16と、ECU(Electric Control Unit)15とを備える。   As shown in FIGS. 1 and 2, the bicycle occupant protection device 10 includes a vehicle speed sensor 11, a vehicle front camera 12, a millimeter wave radar 13, and a movable bumper (bumper) 14 (hereinafter simply referred to as a bumper 14). ), A bumper moving device (bumper moving means) 16, and an ECU (Electric Control Unit) 15.

車速センサ11は、車両1の速度を逐次検出し、検出した情報を含む信号をECU15へ出力する。   The vehicle speed sensor 11 sequentially detects the speed of the vehicle 1 and outputs a signal including the detected information to the ECU 15.

車両前方用カメラ12は、例えば、フロントウィンドウ3の上部に設けられ、車両1の前方の所定角度の範囲内の動画像を逐次撮像し、撮像した動画像を構成する静止画像をデジタル変換して動画像の情報としてECU15へ出力する。   The vehicle front camera 12 is provided, for example, in the upper part of the front window 3, sequentially captures a moving image within a predetermined angle range in front of the vehicle 1, and digitally converts still images constituting the captured moving image. The information is output to the ECU 15 as moving image information.

ミリ波レーダ13は、例えば、バンパ14の近傍に配置され、ミリ波帯域の連続した電磁波である送信波を、キャブ2の前面部から前方へ向かって所定角度の範囲内に所定時間ごとに繰り返し発射し、車両1の前方に存在する物体(自転車40を含む)からの反射波である受信波を受信する。ミリ波レーダ13は、キャブ2の前面から上記物体までの距離と仰俯角と前後方向を基準にする方位角とを逐次検出し、検出した情報を含む信号をECU15へ出力する。   For example, the millimeter wave radar 13 is disposed in the vicinity of the bumper 14 and repeats a transmission wave, which is a continuous electromagnetic wave in the millimeter wave band, from the front surface of the cab 2 to the front within a range of a predetermined angle every predetermined time. The received wave, which is a reflected wave from an object (including the bicycle 40) existing in front of the vehicle 1, is launched. The millimeter wave radar 13 sequentially detects the distance from the front surface of the cab 2 to the object, the elevation angle, and the azimuth angle based on the front-rear direction, and outputs a signal including the detected information to the ECU 15.

図1〜図4に示すように、バンパ14は、後述するアクチュエータ17を介して車体側に支持され、車両1の前面部1aの下方で車幅方向に延びる通常位置(図1(a)及び図1(b)に図示された位置)に保持される。バンパ14は、通常位置から後述する複数(本実施形態では2つ)の作動位置(図4に実線で示す位置及び二点鎖線で示す位置)へ前進可能に車体側に支持される。すなわち、本実施形態では、バンパ14の全域が可動領域である。   As shown in FIGS. 1 to 4, the bumper 14 is supported on the vehicle body side via an actuator 17 which will be described later, and extends in the vehicle width direction below the front surface portion 1 a of the vehicle 1 (see FIG. 1A and FIG. 1). (Position shown in FIG. 1B). The bumper 14 is supported on the vehicle body side so as to be able to advance from a normal position to a plurality of (two in the present embodiment) operating positions (a position indicated by a solid line and a position indicated by a two-dot chain line in FIG. 4). That is, in the present embodiment, the entire area of the bumper 14 is a movable area.

バンパ移動装置16は、エアタンク18とエアバルブ19とアクチュエータ17とを有する。エアタンク18は、アクチュエータ17へ供給するエア(空気)を貯留するタンクであって、車両1に搭載され、アクチュエータ17に対してエア流通路20を介して接続される。エアバルブ19は、エア流通路20に設けられ、エア流通路20を開閉可能であり、開状態でエアタンク18からアクチュエータ17へのエアの流通を許容し、閉状態でエアタンク18からアクチュエータ17へのエアの流通を遮断する。エアバルブ19が開状態になると、エアがエアタンク18からアクチュエータ17へ供給される。アクチュエータ17は、シリンダ21とピストン22とを有する伸縮自在のアクチュエータ17であり、エアタンク18からのエアがシリンダ21内に供給されると伸長する。シリンダ21の基端側は、車体側に支持され、ピストン22の先端側は、バンパ14に連結される。アクチュエータ17は、通常時は収縮した状態でバンパ14を通常位置(図4に一点鎖線で示す位置)に保持する。シリンダ21内にエアが供給されると、アクチュエータ17は、ピストン22の先端側を前下方へ傾動しつつ、前下方へ向かって伸長する。すなわち、アクチュエータ17には、ピストン22の先端側を通常位置から前下方へ傾動可能な傾動機構23が設けられる。   The bumper moving device 16 includes an air tank 18, an air valve 19, and an actuator 17. The air tank 18 is a tank that stores air (air) to be supplied to the actuator 17, is mounted on the vehicle 1, and is connected to the actuator 17 via the air flow passage 20. The air valve 19 is provided in the air flow passage 20 and can open and close the air flow passage 20. The air valve 19 allows air to flow from the air tank 18 to the actuator 17 in the open state, and air from the air tank 18 to the actuator 17 in the closed state. Block the distribution of When the air valve 19 is opened, air is supplied from the air tank 18 to the actuator 17. The actuator 17 is a telescopic actuator 17 having a cylinder 21 and a piston 22, and extends when air from the air tank 18 is supplied into the cylinder 21. The proximal end side of the cylinder 21 is supported on the vehicle body side, and the distal end side of the piston 22 is connected to the bumper 14. The actuator 17 holds the bumper 14 at a normal position (a position indicated by an alternate long and short dash line in FIG. 4) in a contracted state at a normal time. When air is supplied into the cylinder 21, the actuator 17 extends forward and downward while tilting the front end side of the piston 22 forward and downward. That is, the actuator 17 is provided with a tilt mechanism 23 that can tilt the front end side of the piston 22 forward and downward from the normal position.

図3及び図4に示すように、バンパ14の作動位置は、通常位置のバンパ14から前方への前方移動距離(所定の距離)Lと、通常位置のバンパ14から下方への下方移動距離Mとによって規定される。前方移動距離Lは、フロントパネル4の前面4aから作動位置のバンパ14の前面14aまでの距離が、所定の自転車40のハンドル41の端部41aと車輪42の側面との間の距離Nと同じになるように、設定される。下方移動距離Mは、所定の自転車40の最も下方に位置するときのペダル43(図4に示すペダル43)の下面よりも下方に作動位置のバンパ14の上面14bが位置するように、設定される。   As shown in FIGS. 3 and 4, the operation position of the bumper 14 includes a forward movement distance (predetermined distance) L from the bumper 14 at the normal position and a downward movement distance M downward from the bumper 14 at the normal position. And is prescribed by The distance L from the front surface 4a of the front panel 4 to the front surface 14a of the bumper 14 at the operating position is the same as the distance N between the end 41a of the handle 41 of the predetermined bicycle 40 and the side surface of the wheel 42. It is set to become. The downward moving distance M is set so that the upper surface 14b of the bumper 14 in the operating position is positioned below the lower surface of the pedal 43 (the pedal 43 shown in FIG. 4) when the predetermined bicycle 40 is positioned at the lowest position. The

2つの作動位置のうちの第1の作動位置の前方移動距離(第1距離)L1は、フロントパネル4の前面4aから第1の作動位置(図4に実線で示す位置)のバンパ14の前面14aまでの距離が、大人用自転車(予め設定された基準の大きさ(閾値k)よりも大きな自転車)のハンドル41の端部41aと車輪42の側面との間の距離である前後距離N1と同じになるように、設定される。第1の作動位置の下方移動距離M1は、大人用自転車の最も下方に位置するときのペダル43の下面よりも下方に第1の作動位置のバンパ14の上面14bが位置するように、設定される。また、2つの作動位置のうちの第2の作動位置(図4に二点鎖線で示す位置)の前方移動距離(第2距離)L2は、フロントパネル4の前面4aから第2の作動位置のバンパ14の前面14aまでの距離が、子供用自転車(上記基準の大きさ(閾値k)よりも小さな自転車)のハンドル41の端部41aと車輪42の側面との間の距離である前後距離N2と同じになるように、設定される。第2の作動位置の下方移動距離M2は、子供用自転車の最も下方に位置するときのペダル43(図示省略)の下面よりも下方に第2の作動位置のバンパ14の上面14bが位置するように、設定される。第2の作動位置の前方移動距離L2は、第1の作動位置の前方移動距離L1よりも短く、第2の作動位置の下方移動距離M2は、第1の作動位置の下方移動距離M1よりも長い。第1の作動位置及び第2の作動位置は、通常位置よりも低い。なお、大人用自転車(または子供用自転車)のハンドル41の端部41aと車輪42の側面との間の距離は、実験やシミュレーションや計算等によって、様々な大人用自転車(または子供用自転車)のハンドル41の端部41aと車輪42の側面との間の距離の平均値から求めてもよい。また、自転車40の大きさとは、車両前方用カメラ12からの情報から求める自転車40の所定の部位の値(大きさ)であって、例えば、自転車40の前後方向の長さ(所定の部位の値)または上下方向の長さ(所定の部位の値)であってもよいし、或いは車輪42の大きさ(所定の部位の値)であってもよい。また、図4には、大人用自転車のペダル43が図示されている。   The forward moving distance (first distance) L1 of the first operating position of the two operating positions is the front surface of the bumper 14 from the front surface 4a of the front panel 4 to the first operating position (position indicated by a solid line in FIG. 4). The distance to 14a is a front-rear distance N1 that is the distance between the end 41a of the handle 41 and the side of the wheel 42 of an adult bicycle (bicycle larger than a preset reference size (threshold value k)). Set to be the same. The downward movement distance M1 of the first operating position is set so that the upper surface 14b of the bumper 14 in the first operating position is positioned below the lower surface of the pedal 43 when positioned at the lowest position of the adult bicycle. The Further, the forward movement distance (second distance) L2 of the second operation position (the position indicated by the two-dot chain line in FIG. 4) of the two operation positions is the second operation position from the front surface 4a of the front panel 4. The front-rear distance N2 is a distance between the end 41a of the handle 41 and the side surface of the wheel 42 of the child bicycle (bicycle smaller than the reference size (threshold value k)). Is set to be the same as The downward movement distance M2 of the second operating position is such that the upper surface 14b of the bumper 14 in the second operating position is positioned below the lower surface of the pedal 43 (not shown) when positioned at the lowermost position of the child bicycle. To be set. The forward moving distance L2 of the second operating position is shorter than the forward moving distance L1 of the first operating position, and the downward moving distance M2 of the second operating position is shorter than the downward moving distance M1 of the first operating position. long. The first operating position and the second operating position are lower than the normal position. Note that the distance between the end 41a of the handle 41 of the adult bicycle (or child bicycle) and the side surface of the wheel 42 varies depending on the experiment, simulation, calculation, etc. of various adult bicycles (or child bicycles). You may obtain | require from the average value of the distance between the edge part 41a of the handle | steering-wheel 41, and the side surface of the wheel 42. FIG. Further, the size of the bicycle 40 is a value (size) of a predetermined part of the bicycle 40 obtained from information from the camera 12 for the front of the vehicle. For example, the length of the bicycle 40 in the front-rear direction (the predetermined part) Value) or the length in a vertical direction (value of a predetermined part), or the size of the wheel 42 (value of a predetermined part). FIG. 4 shows an adult bicycle pedal 43.

図2に示すように、ECU15は、CPU(Central Processing Unit)24と記憶部25とを備える。記憶部25は、図示しないROM(Read Only Memory)及びRAM(Random Access Memory)を含む。   As shown in FIG. 2, the ECU 15 includes a CPU (Central Processing Unit) 24 and a storage unit 25. The storage unit 25 includes a ROM (Read Only Memory) and a RAM (Random Access Memory) (not shown).

記憶部25のROMには、CPU24によって読み出される種々のプログラム(自転車乗員保護プログラムを含む)や種々のデータ(自転車40の上記基準の大きさの閾値kや、上記2つの作動位置に対応するエアの供給量及びアクチュエータ17の傾動角度等のデータを含む)が予め記憶される。なお、ROMに記憶される種々のデータは、実験やシミュレーションなどによって得られた測定値や理論値に基づいて設定される。また、これらのデータは、プログラムに含まれた状態で記憶されてもよい。   The ROM of the storage unit 25 stores various programs (including a bicycle occupant protection program) read out by the CPU 24 and various data (the threshold value k of the reference size of the bicycle 40 and the air corresponding to the two operating positions. And the data such as the tilt angle of the actuator 17 are stored in advance. Various data stored in the ROM are set based on measured values and theoretical values obtained by experiments and simulations. These data may be stored in a state included in the program.

記憶部25に記憶される2つの作動位置に対応するエアの供給量及びアクチュエータ17の傾動角度とは、バンパ14を通常位置から上記大人用自転車の第1作動位置へ移動可能なエアの供給量及びアクチュエータ17の傾動角度と、バンパ14を通常位置から上記子供用自転車の第2作動位置へ移動可能なエアの供給量及びアクチュエータ17の傾動角度とである。   The supply amount of air corresponding to the two operation positions stored in the storage unit 25 and the tilt angle of the actuator 17 are the supply amount of air that can move the bumper 14 from the normal position to the first operation position of the adult bicycle. And the tilt angle of the actuator 17, the supply amount of air that can move the bumper 14 from the normal position to the second operating position of the child bicycle, and the tilt angle of the actuator 17.

記憶部25のRAMには、車速センサ11、車両前方用カメラ12、及びミリ波レーダ13の各種検出データを記憶するデータ記憶領域が予め設定されている。また、RAMは、上記各種検出データの一時記憶領域以外にも、ROMから読み出されたプログラムの展開領域、CPU24の演算結果の一時記憶領域等として機能する。   In the RAM of the storage unit 25, data storage areas for storing various detection data of the vehicle speed sensor 11, the vehicle front camera 12, and the millimeter wave radar 13 are set in advance. In addition to the temporary storage area for various detection data, the RAM functions as a program development area read from the ROM, a temporary storage area for calculation results of the CPU 24, and the like.

CPU24は、自転車判定部(自転車衝突判定手段)26、サイズ検出部(サイズ検出手段)27、衝突検知部(自転車衝突判定手段)28、及び制御部(制御手段)29を有し、記憶部25に記憶された自転車乗員保護プログラムに従って自転車乗員保護処理を実行する。また、CPU24は、上記各種検出データを記憶部25に記憶し、自転車乗員保護処理を実行する際に上記各種検出データ等を記憶部25から読み出す。なお、CPU24の機能の一部を抽出して他の情報処理装置に設けてもよい。   The CPU 24 includes a bicycle determination unit (bicycle collision determination unit) 26, a size detection unit (size detection unit) 27, a collision detection unit (bicycle collision determination unit) 28, and a control unit (control unit) 29, and a storage unit 25. The bicycle occupant protection process is executed according to the bicycle occupant protection program stored in In addition, the CPU 24 stores the various detection data in the storage unit 25 and reads the various detection data and the like from the storage unit 25 when executing the bicycle occupant protection process. A part of the function of the CPU 24 may be extracted and provided in another information processing apparatus.

自転車判定部26は、車両前方用カメラ12からの情報に基づいて車両1の前方の物体の大きさ、形状、移動方向、移動速度等から、前記物体が自転車40であるか否かを判定する。すなわち、車両前方用カメラ12及び自転車判定部26は、車両1の前方の物体が自転車40であるか否かを判定する自転車判定手段として機能する。なお、車両1の前方の物体が自転車40であるか否かを判定する手段は、上記に限定されるものではなく、既知の様々な方法によって判定することができる。   The bicycle determination unit 26 determines whether the object is the bicycle 40 from the size, shape, moving direction, moving speed, and the like of the object in front of the vehicle 1 based on information from the vehicle front camera 12. . That is, the vehicle front camera 12 and the bicycle determination unit 26 function as a bicycle determination unit that determines whether the object in front of the vehicle 1 is the bicycle 40. The means for determining whether the object in front of the vehicle 1 is the bicycle 40 is not limited to the above, and can be determined by various known methods.

サイズ検出部27は、自転車判定部26が自転車40であると判定した物体の大きさを、車両前方用カメラ12の情報から検出する。すなわち、車両前方用カメラ12及びサイズ検出部27は、自転車40の大きさを検出するサイズ検出手段として機能する。   The size detection unit 27 detects the size of the object determined by the bicycle determination unit 26 as the bicycle 40 from the information of the vehicle front camera 12. That is, the vehicle front camera 12 and the size detection unit 27 function as a size detection unit that detects the size of the bicycle 40.

衝突検知部28は、車両前方用カメラ12の情報から車両1の前方に物体を検出した際に、ミリ波レーダ13及び車速センサ11の情報から前記物体との衝突余裕時間TTC(Time To Collision)を算出する。衝突検知部28は、算出した衝突余裕時間TTCが予め設定される閾値よりも小さいとき、車両1と物体との衝突を回避できない衝突前状態であると判定する。すなわち、車両前方用カメラ12、ミリ波レーダ13、車速センサ11、及び衝突検知部28は、車両1の前面部1aと物体との衝突を検知する衝突検知手段として機能する。この衝突検知手段と上述した自転車判定手段とは、車両1の前面部1aと自転車40とが衝突するか否かを判定する自転車衝突判定手段として機能する。なお、衝突余裕時間TTCは、車両1と物体との距離K(m)と相対速度RV(m/s)とを次式(1)に代入して算出する。また、衝突余裕時間TTCの閾値は、車両1と物体との衝突を回避できない値を実験やシミュレーション等により求め、求められた値を閾値に設定する。
TTC=K/RV ・・・(1)
上式(1)において、距離K(m)と相対速度RV(m/s)とは、ミリ波レーダ13及び車速センサ11が検出する情報から算出可能である。
When the collision detection unit 28 detects an object in front of the vehicle 1 from the information of the vehicle front camera 12, a collision allowance time TTC (Time To Collation) with the object from the information of the millimeter wave radar 13 and the vehicle speed sensor 11 is detected. Is calculated. When the calculated collision allowance time TTC is smaller than a preset threshold value, the collision detection unit 28 determines that the pre-collision state cannot avoid the collision between the vehicle 1 and the object. That is, the vehicle front camera 12, the millimeter wave radar 13, the vehicle speed sensor 11, and the collision detection unit 28 function as a collision detection unit that detects a collision between the front surface 1 a of the vehicle 1 and an object. The collision detection unit and the bicycle determination unit described above function as a bicycle collision determination unit that determines whether the front surface portion 1a of the vehicle 1 and the bicycle 40 collide. The collision margin time TTC is calculated by substituting the distance K (m) between the vehicle 1 and the object and the relative speed RV (m / s) into the following equation (1). Further, the threshold value of the collision margin time TTC is a value that cannot avoid the collision between the vehicle 1 and the object by experiments or simulations, and the obtained value is set as the threshold value.
TTC = K / RV (1)
In the above equation (1), the distance K (m) and the relative speed RV (m / s) can be calculated from information detected by the millimeter wave radar 13 and the vehicle speed sensor 11.

制御部29は、自転車判定部26によって自転車40であると判定されている物体と車両1の前面部1aとの衝突を回避できない衝突前状態であると衝突検知部28が判定した際に、サイズ検出部27が検出した前記物体(以下、衝突自転車という。)の大きさに応じてバンパ移動装置16のエアバルブ19及び傾動機構23を制御する。具体的には、サイズ検出部27が検出した衝突自転車の大きさが、記憶部25に予め記憶された自転車40の上記基準の大きさの閾値kよりも大きい場合には、制御部29は、バンパ14を第1の作動位置(大人用自転車の作動位置)へ移動させるように、バンパ移動装置16のエアバルブ19及び傾動機構23を制御する。一方、サイズ検出部27が検出した衝突自転車の大きさが、記憶部25に予め記憶された自転車40の上記基準の大きさの閾値kよりも小さい場合には、制御部29は、バンパ14を第2の作動位置(子供用自転車の作動位置)へ移動させるように、バンパ移動装置16のエアバルブ19及び傾動機構23を制御する。また、制御部29は、自転車判定部26が自転車40ではないと判定している物体(車両や歩行者等)と車両1の前面部1aとの衝突を、衝突検知部28が検知した際には、自転車乗員保護処理を実行しない。   When the collision detection unit 28 determines that the control unit 29 is in a pre-collision state in which the collision between the object determined to be the bicycle 40 by the bicycle determination unit 26 and the front surface portion 1a of the vehicle 1 cannot be avoided, The air valve 19 and the tilt mechanism 23 of the bumper moving device 16 are controlled in accordance with the size of the object (hereinafter referred to as a collision bicycle) detected by the detection unit 27. Specifically, when the size of the collision bicycle detected by the size detection unit 27 is larger than the reference size threshold k of the bicycle 40 stored in the storage unit 25 in advance, the control unit 29 The air valve 19 and the tilting mechanism 23 of the bumper moving device 16 are controlled so that the bumper 14 is moved to the first operating position (the operating position of the adult bicycle). On the other hand, when the size of the collision bicycle detected by the size detection unit 27 is smaller than the reference size threshold k of the bicycle 40 stored in the storage unit 25 in advance, the control unit 29 controls the bumper 14. The air valve 19 and the tilt mechanism 23 of the bumper moving device 16 are controlled so as to move to the second operating position (the operating position of the child bicycle). The control unit 29 also detects when the collision detection unit 28 detects a collision between an object (such as a vehicle or a pedestrian) that the bicycle determination unit 26 determines not to be the bicycle 40 and the front surface portion 1a of the vehicle 1. Does not perform the bicycle occupant protection process.

次に、ECU15が実行する自転車乗員保護処理について、図5に示すフローチャートを参照して説明する。本処理は、車両1の始動時に開始され、所定時間毎に繰り返して実行される。   Next, the bicycle occupant protection process executed by the ECU 15 will be described with reference to the flowchart shown in FIG. This process is started when the vehicle 1 is started, and is repeatedly executed every predetermined time.

本処理が開始されると、自転車判定部26は、車両前方用カメラ12の情報から、車両1の前方の物体が自転車40であるか否かを判定する(ステップS1)。自転車判定部26が物体を自転車40であると判定した場合には(ステップS1:YES)、ステップS2へ移行する。一方、自転車判定部26が物体を自転車40ではないと判定した場合には(ステップS1:NO)、処理を終了する。   When this processing is started, the bicycle determination unit 26 determines whether the object in front of the vehicle 1 is the bicycle 40 from the information of the vehicle front camera 12 (step S1). If the bicycle determination unit 26 determines that the object is the bicycle 40 (step S1: YES), the process proceeds to step S2. On the other hand, when the bicycle determination unit 26 determines that the object is not the bicycle 40 (step S1: NO), the process ends.

ステップS2では、サイズ検出部27は、自転車40の大きさを検出し、ステップS3へ移行する。   In step S2, the size detection unit 27 detects the size of the bicycle 40, and proceeds to step S3.

ステップS3では、衝突検知部28は、自転車判定部26が自転車40であると判定している物体と車両1の前面部1aとが衝突するか否かを判定する(ステップS3)。衝突検知部28が、車両1の前面部1aと自転車40とが衝突すると判定した場合には(ステップS3:YES)、ステップS4へ移行する。一方、衝突検知部28が、車両1の前面部1aと自転車40とが衝突すると判定しない場合には(ステップS3:NO)、処理を終了する。   In step S3, the collision detection unit 28 determines whether or not the object determined by the bicycle determination unit 26 to be the bicycle 40 and the front surface portion 1a of the vehicle 1 collide (step S3). When the collision detection unit 28 determines that the front surface 1a of the vehicle 1 and the bicycle 40 collide (step S3: YES), the process proceeds to step S4. On the other hand, when the collision detection unit 28 does not determine that the front surface 1a of the vehicle 1 and the bicycle 40 collide (step S3: NO), the process ends.

ステップS4では、制御部29は、サイズ検出部27が検出した衝突自転車の大きさに応じた作動位置へバンパ14を前進移動させるように、バンパ移動装置16を制御して、処理を終了する。   In step S4, the control unit 29 controls the bumper moving device 16 to move the bumper 14 forward to the operating position corresponding to the size of the collision bicycle detected by the size detection unit 27, and ends the process.

上記のように構成された自転車乗員保護装置10では、制御部29は、自転車判定部26が自転車40であると判定している物体との衝突を衝突検知部28が検知すると、バンパ14を通常位置から所定の距離(前方移動距離L)だけ前方へ移動させて、バンパ14が作動位置に配置されるようにバンパ移動装置16を制御する。そして、前方移動距離Lは、フロントパネル4の前面4aから作動位置のバンパ14の前面14aまでの距離が、所定の自転車40のハンドル41の端部41aと車輪42の側面との間の距離Nと同じになるように、設定される。このため、車両1の前面部1aが上記所定の大きさの自転車40の側面に衝突すると、車両1の前面部1aが自転車40のハンドル41の端部41aに衝突するのと略同時に、バンパ14が自転車40の車輪42の側面に当接するので、ハンドル41のみを前方へ押す場合に比べて、自転車40の乗員の頭部が前方の路面6側へ向かう方向へ作用するモーメントを抑えることができる。従って、自転車40との衝突時に自転車40の乗員を適切に保護することができる。   In the bicycle occupant protection device 10 configured as described above, the control unit 29 normally detects the bumper 14 when the collision detection unit 28 detects a collision with an object that the bicycle determination unit 26 determines to be the bicycle 40. The bumper moving device 16 is controlled to move forward by a predetermined distance (forward movement distance L) from the position so that the bumper 14 is disposed at the operating position. The distance L from the front surface 4a of the front panel 4 to the front surface 14a of the bumper 14 at the operating position is the distance N between the end 41a of the handle 41 of the predetermined bicycle 40 and the side surface of the wheel 42. Is set to be the same as For this reason, when the front portion 1a of the vehicle 1 collides with the side surface of the bicycle 40 having the predetermined size, the bumper 14 substantially simultaneously with the collision of the front portion 1a of the vehicle 1 with the end portion 41a of the handle 41 of the bicycle 40. Comes into contact with the side surface of the wheel 42 of the bicycle 40, so that the moment acting on the head of the occupant of the bicycle 40 in the direction toward the front road surface 6 can be suppressed as compared with the case where only the handle 41 is pushed forward. . Accordingly, it is possible to appropriately protect the occupant of the bicycle 40 at the time of collision with the bicycle 40.

また、制御部29は、サイズ検出部27が検出した衝突自転車の大きさに応じた作動位置へバンパ14を前進移動させるように、バンパ移動装置16を制御するので、ハンドル41の端部41aと車輪42の側面との間の距離Nが異なる各種の自転車40(本実施形態では、大人用自転車と子供用自転車)に対応させて、乗員の頭部が前方の路面6側へ向かう方向へ作用するモーメントを好適に抑えることができ、自転車40の乗員を適切に保護することができる。   In addition, the control unit 29 controls the bumper moving device 16 so as to move the bumper 14 forward to the operating position corresponding to the size of the collision bicycle detected by the size detection unit 27. Corresponding to various types of bicycles 40 (in this embodiment, adult bicycles and child bicycles) having different distances N from the side surfaces of the wheels 42, the occupant's head acts in the direction toward the front road surface 6 side. The moment to be able to be suppressed can be suppressed suitably, and the passenger | crew of the bicycle 40 can be protected appropriately.

第1の作動位置及び第2の作動位置は、通常位置よりも低く、通常位置から作動位置への下方移動距離Mは、所定の自転車40の最も下方に位置するときのペダル43の下面よりも下方に作動位置のバンパ14の上面14bが位置するように、設定される。このため、通常位置から作動位置へ移動したバンパ14と自転車40のペダル43との当接を確実に回避して、車両1の前面部1aが自転車40のハンドル41の端部41aに衝突するのと略同時にバンパ14を自転車40の車輪42の側面に当接させることができる。   The first operating position and the second operating position are lower than the normal position, and the downward movement distance M from the normal position to the operating position is lower than the lower surface of the pedal 43 when positioned at the lowest position of the predetermined bicycle 40. It is set so that the upper surface 14b of the bumper 14 in the operating position is positioned below. For this reason, the contact between the bumper 14 moved from the normal position to the operating position and the pedal 43 of the bicycle 40 is surely avoided, and the front portion 1a of the vehicle 1 collides with the end portion 41a of the handle 41 of the bicycle 40. At the same time, the bumper 14 can be brought into contact with the side surface of the wheel 42 of the bicycle 40.

このように、本実施形態によれば、自転車40との衝突時に自転車40の乗員を適切に保護することができる。   Thus, according to this embodiment, the passenger | crew of the bicycle 40 can be protected appropriately at the time of a collision with the bicycle 40.

なお、本実施形態では、サイズ検出部27が検出した自転車40の大きさに応じて、バンパ14の作動位置を2種類の大きさの自転車40(大人用自転車及び子供用自転車)に対応させたが、3種類以上の大きさの自転車40に対応させてもよい。   In the present embodiment, the operation position of the bumper 14 is made to correspond to two types of bicycles 40 (adult bicycles and child bicycles) according to the size of the bicycle 40 detected by the size detection unit 27. However, the bicycle 40 may have three or more sizes.

また、本実施形態では、制御部29は、サイズ検出部27が検出した衝突自転車の大きさと、記憶部25に予め記憶された自転車40の上記基準の大きさの閾値kとを比較し、その結果に応じてバンパ14の作動位置を決定したが、これに限定されるものではない。例えば、サイズ検出部27が検出した衝突自転車の大きさと閾値kとの比較によることなく、サイズ検出部27が検出した衝突自転車の大きさから計算によって算出される値に基づいてバンパ14の作動位置を決定してもよい。   In the present embodiment, the control unit 29 compares the size of the collision bicycle detected by the size detection unit 27 with the threshold value k of the reference size of the bicycle 40 stored in the storage unit 25 in advance. Although the operation position of the bumper 14 is determined according to the result, the present invention is not limited to this. For example, the operation position of the bumper 14 is calculated based on a value calculated by calculation from the size of the collision bicycle detected by the size detection unit 27 without comparing the size of the collision bicycle detected by the size detection unit 27 and the threshold value k. May be determined.

また、本実施形態では、CPU24に、自転車判定部26、サイズ検出部27、衝突検知部28、及び制御部29を設けたが、サイズ検出部27を設けなくてもよい。例えば、平均的な大きさの自転車40の乗員を適切に保護することが可能な前方移動距離Lを、実験やシミュレーション等によって求め、求めた距離を作動位置までの前方移動距離Lに設定し、車両1と自転車40との衝突時に、自転車40の大きさに拘わらす、バンパ14を前記前方移動距離Lだけ移動させてもよい。   In the present embodiment, the bicycle determination unit 26, the size detection unit 27, the collision detection unit 28, and the control unit 29 are provided in the CPU 24. However, the size detection unit 27 may not be provided. For example, the forward movement distance L that can appropriately protect the occupant of the bicycle 40 having an average size is obtained by experiments or simulations, and the obtained distance is set as the forward movement distance L to the operating position. When the vehicle 1 and the bicycle 40 collide, the bumper 14 may be moved by the forward movement distance L regardless of the size of the bicycle 40.

次に、本発明の第2実施形態を図面に基づいて説明する。本実施形態の自転車乗員保護装置50は、バンパ51が車幅方向に並ぶ複数(本実施形態では、4つ)の分割体(可動領域)51a〜51dによって構成される点で第1実施形態と相違する。なお、第1実施形態と同様の構成については同一の符号を付してその説明を省略する。   Next, 2nd Embodiment of this invention is described based on drawing. The bicycle occupant protection device 50 of this embodiment differs from that of the first embodiment in that the bumper 51 is composed of a plurality (four in this embodiment) of divided bodies (movable regions) 51a to 51d arranged in the vehicle width direction. Is different. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図6〜図8に示すように、自転車乗員保護装置50は、車速センサ11と、車両前方用カメラ12と、ミリ波レーダ13と、バンパ51と、複数のバンパ移動装置16と、ECU15とを備える。   As shown in FIGS. 6 to 8, the bicycle occupant protection device 50 includes a vehicle speed sensor 11, a vehicle front camera 12, a millimeter wave radar 13, a bumper 51, a plurality of bumper moving devices 16, and an ECU 15. Prepare.

図6に示すように、本実施形態に係るバンパ51は、車幅方向に並ぶ複数の分割体51a〜51dによって構成される。バンパ51の各分割体51a〜51dは、アクチュエータ17を介して車体側にそれぞれ支持され、車両1の前面部1aの下方で車幅方向に延びる通常位置(図1(a)及び図1(b)に示す位置)に保持される。バンパ51の各分割体51a〜51dは、通常位置から上述した複数の作動位置(第1の作動位置及び第2の作動位置)へ前進可能に車体側に支持される。   As shown in FIG. 6, the bumper 51 according to the present embodiment includes a plurality of divided bodies 51a to 51d arranged in the vehicle width direction. Each of the divided bodies 51a to 51d of the bumper 51 is supported on the vehicle body side via the actuator 17 and extends in the vehicle width direction below the front surface portion 1a of the vehicle 1 (see FIGS. 1A and 1B). ) Is held at the position shown in FIG. Each of the divided bodies 51a to 51d of the bumper 51 is supported on the vehicle body side so as to be capable of moving forward from the normal position to the above-described plurality of operating positions (first operating position and second operating position).

ECU15は、CPU24と記憶部25とを備える。   The ECU 15 includes a CPU 24 and a storage unit 25.

CPU24は、自転車判定部26、サイズ検出部27、車輪検出部(車輪検出手段)52、衝突検知部28、及び制御部(制御手段)53を有し、記憶部25に記憶された自転車乗員保護プログラムに従って自転車乗員保護処理を実行する。   The CPU 24 includes a bicycle determination unit 26, a size detection unit 27, a wheel detection unit (wheel detection unit) 52, a collision detection unit 28, and a control unit (control unit) 53, and bicycle occupant protection stored in the storage unit 25. The bicycle occupant protection process is executed according to the program.

車輪検出部52は、自転車判定部26が自転車40であると判定した自転車40の車輪42(前輪及び後輪)の位置を、車両前方用カメラ12の情報から検出する。すなわち、車両前方用カメラ12及び車輪検出部52は、自転車40の車輪42の位置を検出する車輪検出手段として機能する。   The wheel detection unit 52 detects the position of the wheel 42 (front wheel and rear wheel) of the bicycle 40 determined by the bicycle determination unit 26 as the bicycle 40 from the information of the vehicle front camera 12. That is, the vehicle front camera 12 and the wheel detection unit 52 function as a wheel detection unit that detects the position of the wheel 42 of the bicycle 40.

制御部53は、自転車判定部26によって自転車40であると判定されている物体と車両1の前面部1aとの衝突を、衝突検知部28が検知した際に、サイズ検出部27が検出した前記物体(以下、衝突自転車という。)の大きさ、及び車輪検出部52が検出した衝突自転車の車輪42の位置に応じてバンパ移動装置16のエアバルブ19及び傾動機構23を制御する。具体的には、サイズ検出部27が検出した衝突自転車の大きさが、記憶部25に予め記憶された自転車40の上記基準の大きさの閾値kよりも大きい場合には、制御部53は、バンパ51の各分割体51a〜51dのうち、車輪検出部52が検出した衝突自転車の車輪42に当接可能な分割体を、第1の作動位置(大人用自転車の作動位置)へ移動させるように、バンパ移動装置16のエアバルブ19及び傾動機構23を制御する(図8には、車幅方向両端部の分割体51a及び51dを移動させた状態が図示されている。)。一方、サイズ検出部27が検出した衝突自転車の大きさが、記憶部25に予め記憶された自転車40の上記基準の大きさの閾値kよりも小さい場合には、制御部53は、バンパ51の各分割体51a〜51dのうち、車輪検出部52が検出した衝突自転車の車輪42に当接可能な分割体を、第2の作動位置(子供用自転車の作動位置)へ移動させるように、バンパ移動装置16のエアバルブ19及び傾動機構23を制御する。また、制御部53は、自転車判定部26が自転車40ではないと判定している物体(車両や歩行者等)と車両1の前面部1aとの衝突を、衝突検知部28が検知した際には、自転車乗員保護処理を実行しない。   The control unit 53 detects the collision detected by the size detection unit 27 when the collision detection unit 28 detects a collision between the object determined to be the bicycle 40 by the bicycle determination unit 26 and the front surface portion 1a of the vehicle 1. The air valve 19 and the tilt mechanism 23 of the bumper moving device 16 are controlled according to the size of the object (hereinafter referred to as a collision bicycle) and the position of the wheel 42 of the collision bicycle detected by the wheel detection unit 52. Specifically, when the size of the collision bicycle detected by the size detection unit 27 is larger than the reference size threshold k of the bicycle 40 stored in the storage unit 25 in advance, the control unit 53 Of the divided bodies 51a to 51d of the bumper 51, the divided body that can contact the wheel 42 of the collision bicycle detected by the wheel detector 52 is moved to the first operating position (the operating position of the adult bicycle). In addition, the air valve 19 and the tilting mechanism 23 of the bumper moving device 16 are controlled (FIG. 8 shows a state in which the divided bodies 51a and 51d at both ends in the vehicle width direction are moved). On the other hand, when the size of the collision bicycle detected by the size detection unit 27 is smaller than the reference size threshold k of the bicycle 40 stored in advance in the storage unit 25, the control unit 53 controls the bumper 51. Among the divided bodies 51a to 51d, the bumper is moved so that the divided body that can contact the wheel 42 of the collision bicycle detected by the wheel detector 52 is moved to the second operation position (operation position of the child bicycle). The air valve 19 and the tilt mechanism 23 of the moving device 16 are controlled. In addition, the control unit 53 detects when the collision detection unit 28 detects a collision between an object (such as a vehicle or a pedestrian) determined by the bicycle determination unit 26 that is not the bicycle 40 and the front surface portion 1a of the vehicle 1. Does not perform the bicycle occupant protection process.

上記のように構成された自転車乗員保護装置50では、バンパ51の可動領域である分割体51a〜51dが、車幅方向の異なる位置に複数設けられ、制御部53は、バンパ51の各分割体51a〜51dのうち、車輪検出部52が検出した衝突自転車の車輪42に当接可能な分割体を作動位置へ移動させるように、バンパ移動装置16のエアバルブ19及び傾動機構23を制御する。このため、通常位置から作動位置へ移動したバンパ51の分割体と自転車40のペダル43との当接を回避して、車両1の前面部1aが自転車40のハンドル41の端部41aに衝突するのと略同時にバンパ51の分割体を自転車40の車輪42の側面に当接させることができ、乗員の頭部が前方の路面6側へ向かう方向へ作用するモーメントを好適に抑えることができる。   In the bicycle occupant protection device 50 configured as described above, a plurality of divided bodies 51a to 51d, which are movable regions of the bumper 51, are provided at different positions in the vehicle width direction, and the control unit 53 includes each divided body of the bumper 51. Of 51a to 51d, the air valve 19 and the tilting mechanism 23 of the bumper moving device 16 are controlled so that the divided body that can contact the wheel 42 of the collision bicycle detected by the wheel detection unit 52 is moved to the operating position. For this reason, the front portion 1a of the vehicle 1 collides with the end portion 41a of the handle 41 of the bicycle 40 while avoiding contact between the split body of the bumper 51 moved from the normal position to the operating position and the pedal 43 of the bicycle 40. At substantially the same time, the divided body of the bumper 51 can be brought into contact with the side surface of the wheel 42 of the bicycle 40, and the moment acting on the occupant's head in the direction toward the front road surface 6 can be suitably suppressed.

このように、本実施形態によれば、自転車40との衝突時に自転車40の乗員を適切に保護することができる。   Thus, according to this embodiment, the passenger | crew of the bicycle 40 can be protected appropriately at the time of a collision with the bicycle 40.

なお、本実施形態では、CPU24に、自転車判定部26、サイズ検出部27、車輪検出部52、衝突検知部28、及び制御部53を設けたが、サイズ検出部27を設けなくてもよい。すなわち、車両1と自転車40との衝突時に、自転車40の大きさに拘わらず、単に自転車40の車輪42に当接するバンパ51の分割体を、作動位置へ移動させてもよい。   In the present embodiment, the CPU 24 is provided with the bicycle determination unit 26, the size detection unit 27, the wheel detection unit 52, the collision detection unit 28, and the control unit 53, but the size detection unit 27 may not be provided. That is, when the vehicle 1 and the bicycle 40 collide, the divided body of the bumper 51 that is in contact with the wheel 42 of the bicycle 40 may be moved to the operating position regardless of the size of the bicycle 40.

また、本実施形態では、バンパ51の分割体51a〜51dの全てを可動領域としたが、分割体51a〜51dのうちの一部のみを可動領域としてもよい。   Further, in the present embodiment, all of the divided bodies 51a to 51d of the bumper 51 are movable areas, but only some of the divided bodies 51a to 51d may be movable areas.

以上、本発明について、上記実施形態に基づいて説明を行ったが、本発明は上記実施形態の内容に限定されるものではなく、当然に本発明を逸脱しない範囲で適宜変更が可能である。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例および運用技術等は全て本発明の範疇に含まれることは勿論である。   As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

例えば、上記第1実施形態及び上記第2実施形態では、車両前方用カメラ12及び自転車判定部26を、自転車判定手段として機能させたが、これに限定されるものではなく、車両1の前方の物体が自転車40であるか否かを判定可能であれば他の自転車判定手段であってもよい。   For example, in the first embodiment and the second embodiment, the vehicle front camera 12 and the bicycle determination unit 26 function as a bicycle determination unit. However, the present invention is not limited to this. Other bicycle determination means may be used as long as it is possible to determine whether the object is the bicycle 40 or not.

また、上記第1実施形態及び上記第2実施形態では、車両前方用カメラ12、ミリ波レーダ13、車速センサ11、及び衝突検知部28を、衝突検知手段として機能させたが、これに限定されるものではなく、車両1の前面部1aと物体との衝突を検知可能であれば他の衝突検知手段であってもよい。   Further, in the first embodiment and the second embodiment, the vehicle front camera 12, the millimeter wave radar 13, the vehicle speed sensor 11, and the collision detection unit 28 function as the collision detection unit, but the present invention is not limited thereto. Any other collision detection means may be used as long as it can detect a collision between the front portion 1a of the vehicle 1 and an object.

また、上記第1実施形態及び上記第2実施形態では、CPU24に、車両1の前方の物体が自転車40であるか否かを判定する自転車判定部26と、車両1の前面部1aと物体との衝突を検知する衝突検知部28とを設け、これら自転車判定部26と衝突検知部28とを、車両1の前面部1aと自転車40とが衝突するか否かを判定する自転車衝突判定手段として機能させたが、自転車衝突判定手段はこれに限定されるものではない。例えば、CPU24に、車両1の前面部1aと自転車40との衝突を検知する自転車衝突検知部を設け、自転車衝突検知部を自転車衝突判定手段として機能させてもよい。   In the first embodiment and the second embodiment, the CPU 24 causes the bicycle determination unit 26 to determine whether the object in front of the vehicle 1 is the bicycle 40, the front portion 1 a of the vehicle 1, and the object. A collision detection unit 28 for detecting a collision of the vehicle 1 and the bicycle determination unit 26 and the collision detection unit 28 as bicycle collision determination means for determining whether or not the front portion 1a of the vehicle 1 and the bicycle 40 collide. Although functioning, the bicycle collision determination means is not limited to this. For example, the CPU 24 may be provided with a bicycle collision detection unit that detects a collision between the front surface 1a of the vehicle 1 and the bicycle 40, and the bicycle collision detection unit may function as a bicycle collision determination unit.

また、上記第1実施形態及び上記第2実施形態では、車両前方用カメラ12及びサイズ検出部27を、サイズ検出手段として機能させたが、これに限定されるものではなく、自転車40の大きさを検出可能であれば他のサイズ検出手段であってもよい。   Moreover, in the said 1st Embodiment and the said 2nd Embodiment, although the vehicle front camera 12 and the size detection part 27 were functioned as a size detection means, it is not limited to this, The magnitude | size of the bicycle 40 Other size detecting means may be used as long as it can be detected.

また、上記第1実施形態及び上記第2実施形態では、フロントパネル4の前面4aから作動位置のバンパ14の前面14aまでの距離が、所定の自転車40のハンドル41の端部41aと車輪42の側面との間の距離Nと同じになるように、バンパ14,51の前方移動距離Lを設定したが、これに限定されるものではなく、自転車40の乗員を適切に保護することが可能な前方移動距離Lを、実験やシミュレーション等によって求め、求めた前方移動距離Lに設定してもよい。   In the first embodiment and the second embodiment, the distance from the front surface 4a of the front panel 4 to the front surface 14a of the bumper 14 in the operating position is such that the end portion 41a of the handle 41 of the predetermined bicycle 40 and the wheel 42 are The forward movement distance L of the bumpers 14 and 51 is set so as to be the same as the distance N between the side surfaces, but is not limited to this, and it is possible to appropriately protect the occupant of the bicycle 40. The forward movement distance L may be obtained by experiment, simulation, or the like, and set to the obtained forward movement distance L.

また、上記第1実施形態及び上記第2実施形態では、バンパ14,51の作動位置を通常位置よりも低い位置に設定したが、これに限定されるものではない。   Moreover, in the said 1st Embodiment and the said 2nd Embodiment, although the operation position of the bumpers 14 and 51 was set to the position lower than a normal position, it is not limited to this.

また、上記第1実施形態及び上記第2実施形態では、バンパ14,51をエアタンク18からのエアによって通常位置から作動位置へ移動させたが、これに限定されるものではなく、例えば、モータやバネ、或いは火薬の爆風等によってバンパ14,51を作動位置へ移動させてもよい。   Further, in the first embodiment and the second embodiment, the bumpers 14 and 51 are moved from the normal position to the operating position by the air from the air tank 18, but the present invention is not limited to this. The bumpers 14 and 51 may be moved to the operating position by a spring or a blast of explosives.

本開示に係る自転車乗員保護装置は、バンパを有する車両に広く適用することができる。   The bicycle occupant protection device according to the present disclosure can be widely applied to vehicles having bumpers.

1:車両
1a:車両の前面部
10,50:自転車乗員保護装置
11:車速センサ
12:車両前方用カメラ(サイズ検出手段、車輪検出手段)
13:ミリ波レーダ
14,51:バンパ
16:バンパ移動装置(バンパ移動手段)
26:自転車判定部(自転車衝突判定手段)
27:サイズ検出部(サイズ検出手段)
28:衝突検知部(自転車衝突判定手段)
29,53:制御部(制御手段)
40:自転車
52:車輪検出部(車輪検出手段)
1: Vehicle 1a: Front portion 10, 50 of vehicle: Bicycle occupant protection device 11: Vehicle speed sensor 12: Vehicle front camera (size detection means, wheel detection means)
13: Millimeter wave radar 14, 51: Bumper 16: Bumper moving device (bumper moving means)
26: Bicycle determination unit (bicycle collision determination means)
27: Size detection unit (size detection means)
28: Collision detection unit (bicycle collision determination means)
29, 53: Control unit (control means)
40: Bicycle 52: Wheel detection unit (wheel detection means)

Claims (5)

車両の前面部の下方の通常位置から、前記前面部よりも前方へ前進可能に車体側に支持されて通常時には前記通常位置に保持される可動領域を少なくとも一部に有し、車両の前面部の下方で車幅方向に延びるバンパと、
前記バンパの前記可動領域を前記通常位置から前方へ移動させるバンパ移動手段と、
前記車両の前記前面部と自転車とが衝突するか否かを判定する自転車衝突判定手段と、
前記車両の前記前面部と自転車とが衝突すると前記自転車衝突判定手段が判定した際に、前記バンパの前記可動領域を前記通常位置から前方へ所定の距離だけ移動させるように前記バンパ移動手段を制御する制御手段と、を備えた
ことを特徴とする車両の自転車乗員保護装置。
The vehicle front portion includes a movable region supported at the vehicle body side so as to be able to advance forward from the front portion of the vehicle from a normal position below the front portion of the vehicle and normally held at the normal position. A bumper extending in the vehicle width direction below the vehicle,
Bumper moving means for moving the movable region of the bumper forward from the normal position;
Bicycle collision determination means for determining whether or not the front portion of the vehicle and the bicycle collide,
Controls the bumper moving means to move the movable region of the bumper forward from the normal position by a predetermined distance when the bicycle collision determination means determines that the front portion of the vehicle and the bicycle collide. And a bicycle occupant protection device for a vehicle.
請求項1に記載の自転車乗員保護装置であって、
自転車の大きさを検出するサイズ検出手段を備え、
前記バンパ移動手段は、前記所定の距離を調節可能であり、
前記制御手段は、前記車両の前記前面部と自転車とが衝突すると前記自転車衝突判定手段が判定した際に、前記サイズ検出手段が検出した前記自転車の大きさに応じた距離だけ前記バンパの前記可動領域を前記通常位置から前方へ移動させるように前記バンパ移動手段を制御する
ことを特徴とする車両の自転車乗員保護装置。
The bicycle occupant protection device according to claim 1,
Equipped with size detecting means for detecting the size of the bicycle,
The bumper moving means can adjust the predetermined distance,
The control means is configured to move the bumper by the distance corresponding to the size of the bicycle detected by the size detection means when the bicycle collision determination means determines that the front portion of the vehicle collides with a bicycle. The bicycle occupant protection device for a vehicle, wherein the bumper moving means is controlled to move the area forward from the normal position.
請求項2に記載の自転車乗員保護装置であって、
前記制御手段は、前記車両の前記前面部と自転車とが衝突すると前記自転車衝突判定手段が判定した際に、前記サイズ検出手段が検出した前記自転車の大きさが予め設定された基準の大きさよりも大きい場合には、第1距離だけ前記バンパの前記可動領域を前記通常位置から前方へ移動させるように前記バンパ移動手段を制御し、前記サイズ検出手段が検出した前記自転車の大きさが前記基準の大きさよりも小さい場合には、前記第1距離よりも短い第2距離だけ前記バンパの前記可動領域を前記通常位置から前方へ移動させるように前記バンパ移動手段を制御する
ことを特徴とする車両の自転車乗員保護装置。
The bicycle occupant protection device according to claim 2,
The control means is configured such that when the bicycle collision determination means determines that the front portion of the vehicle collides with a bicycle, the size of the bicycle detected by the size detection means is larger than a preset reference size. If it is larger, the bumper moving means is controlled to move the movable area of the bumper forward from the normal position by a first distance, and the size of the bicycle detected by the size detecting means is the reference value. When the vehicle is smaller than the size, the bumper moving means is controlled to move the movable area of the bumper forward from the normal position by a second distance shorter than the first distance. Bicycle occupant protection device.
請求項1〜請求項3のいずれかに記載の自転車乗員保護装置であって、
前記通常位置から前記所定の距離だけ前方へ移動した前記バンパの前記可動領域は、前記通常位置よりも下方に配置される
ことを特徴とする車両の自転車乗員保護装置。
The bicycle occupant protection device according to any one of claims 1 to 3,
The bicycle occupant protection device for a vehicle, wherein the movable region of the bumper moved forward from the normal position by the predetermined distance is disposed below the normal position.
請求項1〜請求項4のいずれかに記載の自転車乗員保護装置であって、
自転車の車輪の位置を検出する車輪検出手段を備え、
前記バンパの前記可動領域は、車幅方向の異なる位置に複数設けられ、
前記制御手段は、前記車両の前記前面部と自転車とが衝突すると前記自転車衝突判定手段が判定した際に、前記バンパの前記複数の可動領域のうち前記車輪検出手段が検出した前記自転車の車輪に当接可能な前記可動領域を前記通常位置から前方へ移動させるように前記バンパ移動手段を制御する
ことを特徴とする車両の自転車乗員保護装置。
The bicycle occupant protection device according to any one of claims 1 to 4,
Comprising wheel detection means for detecting the position of the wheel of the bicycle;
A plurality of the movable regions of the bumper are provided at different positions in the vehicle width direction,
When the bicycle collision determination unit determines that the front part of the vehicle and the bicycle collide, the control unit applies the bicycle wheel detected by the wheel detection unit among the plurality of movable regions of the bumper. The bicycle occupant protection device for a vehicle, wherein the bumper moving means is controlled to move the movable region that can be contacted forward from the normal position.
JP2018055044A 2018-03-22 2018-03-22 Bicycle occupant protection device of vehicle Pending JP2019166922A (en)

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