JP2016009099A5

JP2016009099A5 -

Info

Publication number: JP2016009099A5
Application number: JP2014129856A
Authority: JP
Filing date: 2014-06-25
Publication date: 2017-06-01
Anticipated expiration: 2034-06-25

Description

上述した課題を解決するため、本発明は、車両の外部に搭載されるカメラの対物レンズ又は保護ガラスの表面を払拭する払拭部を備えるとともに前記払拭部が吸水性の高い素材で形成されたワイパ駆動部と、前記払拭部に洗浄液を吐出するための洗浄液吐出ノズルを備えた洗浄液吐出部と、前記カメラの対物レンズ又は保護ガラスの表面に付着した汚れの有無、及び汚れが有る場合にはその汚れが透過性の高い汚れか、透過性の低い汚れ又は白濁かを判別する画像認識部と、前記画像認識部で判別される汚れの種別に応じて洗浄モードを切り替える洗浄払拭制御部と、を具備し、前記ワイパ駆動部は、前記カメラを収納する筐体に上下揺動可能に取付けられたワイパアームを備え、前記ワイパアームが、前記対物レンズ又は保護ガラスの表面に沿って揺動するセンタアームを備え、前記センタアームが、両端よりも中央が低くなったＶ字形状に形成され、前記払拭部が、前記センタアームの形状に沿うようにＶ字形状に形成されて前記センタアームの背面に取付けられ、前記洗浄払拭制御部は、前記画像認識部が前記カメラの対物レンズ又は保護ガラスの表面に付着した汚れの種別を透過性の高い汚れと判別した場合には洗浄モードを前記洗浄液吐出部のみを作動させて洗浄液を前記払拭部に滴下する洗浄液滴下モードに切り替え、透過性の低い汚れ、又は白濁と判別した場合には前記洗浄液吐出部に加え、前記ワイパ駆動部も作動させる払拭モードに切り替え、前記払拭モードでは、前記対物レンズ又は保護ガラスの表面を払拭する前に、前記払拭部に洗浄液を浸み込ませることを特徴とする。 To solve the problems described above, the present invention is formed Rutotomoni the wiping unit includes a payment拭部you wipe the surface of the camera objective or protective glass to be mounted on the outside of the vehicle is a highly absorbent material The wiper driving unit, the cleaning liquid discharge unit having a cleaning liquid discharge nozzle for discharging the cleaning liquid to the wiping unit , the presence or absence of dirt attached to the surface of the objective lens or protective glass of the camera , and dirt Includes an image recognition unit that determines whether the dirt is highly permeable, low-permeability dirt, or cloudiness, and a cleaning wiping control unit that switches a cleaning mode according to the type of dirt determined by the image recognition unit. If, comprising a, the wiper drive unit includes a wiper arm attached vertically swingably to a housing that houses the camera, the wiper arm, wherein the surface of the objective lens or the protective glass A center arm that swings along the center arm, and the center arm is formed in a V shape having a lower center than both ends, and the wiping portion is formed in a V shape so as to follow the shape of the center arm. The cleaning and wiping control unit is attached to the back surface of the center arm, and the image recognition unit determines that the type of dirt adhering to the surface of the objective lens or protective glass of the camera is dirty with high transparency. washing mode is activated only the cleaning liquid ejecting unit switches the cleaning liquid to the cleaning liquid dripping mode you dropped on the wiping unit, low permeability soils, or when it is determined in cloudy addition to the cleaning liquid ejection portion, wherein the wiper also switched to the wiping mode Ru is operated driving unit, in the wiping mode, causes said before wiping the surface of the objective lens or the protective glass, soak the cleaning liquid to the wiping unit Rukoto And features.

更に、洗浄液を対物レンズ又は保護ガラスに滴下することで供給するため、洗浄液の飛散を抑制することができ、車両を汚れにくくすることができる。更に、払拭モードでは、対物レンズ又は保護ガラスを、洗浄液の供給と共に払拭することが可能であるため、対物レンズ表面又は保護ガラス表面と払拭部との摩擦抵抗を小さくすることができ、対物レンズ表面又は保護ガラス表面での擦り傷の発生を抑えることができる。
また、付着物が透過性の高い汚れである場合は、洗浄液吐出部のみを作動させてカメラの対物レンズ又は保護ガラスの表面に洗浄液を供給して付着物を洗い流すことができる。また、付着物が透過性の低い汚れ又は白濁状態である場合は、洗浄液吐出部に加え、ワイパ駆動部も作動させて、ワイパ駆動部の払拭部によりカメラの対物レンズ又は保護ガラスの表面を払拭することで、対物レンズ又は保護ガラスの擦傷の発生を抑えつつ付着物をより確実に除去することができる。 Furthermore, since the cleaning liquid is supplied by being dropped onto the objective lens or the protective glass, scattering of the cleaning liquid can be suppressed and the vehicle can be made difficult to get dirty. Furthermore, in the wiping mode, the objective lens or the protective glass can be wiped together with the supply of the cleaning liquid, so that the frictional resistance between the objective lens surface or the protective glass surface and the wiping portion can be reduced, and the objective lens surface Or generation | occurrence | production of the abrasion on the surface of protective glass can be suppressed.
Further, when the deposit is highly permeable dirt, the cleaning solution can be supplied to the surface of the objective lens or the protective glass of the camera by operating only the cleaning liquid discharge section to wash away the deposit. In addition, when the deposit is dirty or cloudy with low permeability, the wiper drive unit is activated in addition to the cleaning liquid discharge unit, and the wiper unit of the wiper drive unit wipes the surface of the objective lens or protective glass of the camera. By doing so, the deposits can be more reliably removed while suppressing the occurrence of scratches on the objective lens or the protective glass.

上記構成において、前記払拭部は、前記対物レンズ又は保護ガラス側に臨む背面の中央部に、前記対物レンズ又は保護ガラスに押し当てられて払拭する凹状の球面からなる払拭面を備え、前記払拭面は、曲率半径が前記対物レンズ又は保護ガラスの表面と同一の曲率半径に形成されていても良い。 In the above-described configuration, the wiping portion includes a wiping surface made of a concave spherical surface that is pressed against the objective lens or the protective glass and wiped at a central portion of the back surface facing the objective lens or the protective glass. The curvature radius may be formed to the same curvature radius as the surface of the objective lens or the protective glass.

Claims

A wiper driving portion Rutotomoni the wiping unit includes a payment拭部you wipe the surface of the objective lens or the protective glass of the camera is formed a highly absorbent material that is mounted on the outside of the vehicle,
A cleaning liquid discharge section provided with a cleaning liquid discharge nozzle for discharging the cleaning liquid to the wiping section ;
The presence or absence of dirt attached to the surface of the objective lens or the protective glass of the camera , and if there is dirt, an image recognition unit for discriminating whether the dirt is highly permeable dirt, low permeable dirt or cloudiness ;
A cleaning wiping control unit that switches a cleaning mode according to the type of dirt determined by the image recognition unit, and
The wiper drive unit includes a wiper arm attached to a housing for storing the camera so as to be swingable up and down, and the wiper arm includes a center arm that swings along the surface of the objective lens or protective glass.
The center arm is formed in a V shape having a center lower than both ends, and the wiping portion is formed in a V shape so as to follow the shape of the center arm and attached to the back surface of the center arm,
The cleaning and wiping control unit activates only the cleaning liquid discharge unit in the cleaning mode when the image recognition unit determines that the type of dirt attached to the surface of the objective lens or the protective glass of the camera is dirt having high permeability. It is allowed to switch the cleaning liquid to the cleaning liquid dripping mode you dropped on the wiping unit, low permeability soils, or when it is determined cloudy addition to the cleaning liquid discharge portion, switching the wiping mode also the wiper drive unit Ru is operated ,
Wherein in the wiping mode, the before wiping the surface of the objective lens or the protective glass, cleaning function imaging apparatus according to claim Rukoto soaked with cleaning liquid to the wiping unit.

The wiping portion includes a wiping surface made of a concave spherical surface that is pressed against the objective lens or the protective glass and wiped at a central portion of the back surface facing the objective lens or the protective glass, and the wiping surface has a radius of curvature. There cleaning function imaging apparatus according to claim 1, characterized that they are being formed to the curvature radius surface same as the objective lens or protective glass.

3. The imaging with a cleaning function according to claim 1, wherein a wiper operation diagnosis mode in which the image recognition unit determines whether the camera wiper including the wiping unit is driven by the wiper driving unit is operated. apparatus.

In the image recognition unit, the dirt wiping amount is calculated by comparing the dirt adhesion amount on the surface of the objective lens or the protective glass before and after the operation of the wiping unit in the wiping mode, and the dirt wiping amount is a predetermined value or less. The imaging apparatus with a cleaning function according to claim 3 , wherein the camera wiper is operated again.

When the accumulated number of wipes is a predetermined number or more, or when dirt is not removed even if the number of wipings in the wiping mode is performed a predetermined number of times or more, the amount of cleaning liquid discharged from the cleaning liquid discharge unit is set to the objective lens or according to any one of claims 1 to 4, characterized in that actuating the wiping unit cleaning mode for cleaning the wiping part is ejected more than the discharge amount for removing dirt adhering to the surface of the protective glass Imaging device with cleaning function.

When the wiping unevenness is not improved after the cleaning of the wiping unit in the wiping unit cleaning mode, or when it is detected that the camera wiper is not driven by the wiper operation diagnosis mode, a fail signal is output. The imaging device with a cleaning function according to claim 5 .