JP2009126268A - Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same - Google Patents

Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same Download PDF

Info

Publication number
JP2009126268A
JP2009126268A JP2007301500A JP2007301500A JP2009126268A JP 2009126268 A JP2009126268 A JP 2009126268A JP 2007301500 A JP2007301500 A JP 2007301500A JP 2007301500 A JP2007301500 A JP 2007301500A JP 2009126268 A JP2009126268 A JP 2009126268A
Authority
JP
Japan
Prior art keywords
acceleration
vehicle body
vehicle
optical axis
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007301500A
Other languages
Japanese (ja)
Inventor
Ikuo Okoshi
偉生 大越
Toshiyuki Nozoe
利幸 野添
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to JP2007301500A priority Critical patent/JP2009126268A/en
Publication of JP2009126268A publication Critical patent/JP2009126268A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive longitudinal inclination detection device of a vehicle body having high degree of freedom in the place of installation, and a vehicular optical axis direction adjusting device using the same. <P>SOLUTION: The longitudinal inclination detection device of the vehicle body comprises an acceleration sensor 5 with its detection axis being the longitudinal direction of the vehicle body 2, and an acceleration calculating device 6 for calculating the acceleration in the advancing direction of a vehicle based on the displacement in the advancing direction of a vehicle 1; and further comprises a calculation device 7 for calculating the inclination θ in the longitudinal direction of the vehicle body 2 from the acceleration g detected by the acceleration sensor 5, the acceleration A of the acceleration calculating device 6 and the acceleration G of gravity. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、車体の前後方向の傾きを検出することのできる車体の前後方向の傾き検出装置、およびこれを用いて車両の前照灯等の光軸の方向を調整する車両の光軸方向調整装置に関するものである。   The present invention relates to a vehicle body front-rear direction inclination detection device capable of detecting a vehicle body front-rear direction inclination, and a vehicle optical axis direction adjustment that uses this to adjust the direction of an optical axis of a vehicle headlamp or the like. It relates to the device.

一般にこの種の車体の前後方向の傾き検出装置および車両の光軸方向調整装置においては、車体と車軸との間に車高センサを設け、この車高センサの値から車体の前後方向の傾きを検出し、さらにこの検出結果に基づいて前照灯の光軸を調整するものが知られている（特許文献１参照）。
特開平９−２８６２７４号公報 Generally, in this kind of vehicle body front-rear direction inclination detection device and vehicle optical axis direction adjustment device, a vehicle height sensor is provided between the vehicle body and the axle, and the vehicle body front-rear direction inclination is determined from the value of the vehicle height sensor. It is known to detect and further adjust the optical axis of the headlamp based on the detection result (see Patent Document 1).
JP-A-9-286274

上記特許文献１に記載された従来の車体の前後方向の傾き検出装置および車両の光軸方向調整装置は、車軸と車体との間に車高センサを設ける必要があるという場所的な制約があり、また、車体の傾きを推定する必要があり、システム全体としても複雑で高価なものであった。   The conventional vehicle body front-rear direction tilt detection device and vehicle optical axis direction adjustment device described in Patent Document 1 have a local restriction that it is necessary to provide a vehicle height sensor between the axle and the vehicle body. Moreover, it is necessary to estimate the inclination of the vehicle body, and the entire system is complicated and expensive.

本発明は上記従来の課題を解決するもので、設置場所の自由度が高く、安価な車体の前後方向の傾き検出装置およびこれを用いた車両の光軸方向調整装置を提供することを目的とするものである。   SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional problems, and to provide an inexpensive vehicle body front-rear direction inclination detection device and a vehicle optical axis direction adjustment device using the same, which have a high degree of freedom in installation location and are inexpensive. To do.

上記目的を達成するために、本発明は以下の構成を有するものである。   In order to achieve the above object, the present invention has the following configuration.

本発明の請求項１に記載の発明は、慣性力を利用して車体の前後方向の加速度を検出する加速度センサと、車両の進行方向の変位を基に車両の進行方向の加速度を算出する加速度算出装置とを備え、前記加速度センサが検出した加速度ｇ、前記加速度算出装置が算出した加速度Ａおよび重力加速度Ｇにより車体の前後方向の傾きθを求める計算装置を備えたものであって、この構成によれば、慣性力を利用して車体の前後方向の加速度を検出する加速度センサと、車両の進行方向の変位を基に車両の進行方向の加速度を算出する加速度算出装置とを利用して車体の前後方向の傾きを検出するようにしたため、加速度センサを車体のいずれに設置してもよいので設置場所の自由度が高く、また加速度算出装置に入力するデータは車両に取り付けられている速度計に使用するデータを用いることができ、さらに単純な三角関数の式を解くことで車体の傾きを求めることができるため、複雑なアルゴリズムおよびそのための複雑な電気回路を必要としないため安価であるという作用効果を有するものである。   According to the first aspect of the present invention, an acceleration sensor that detects an acceleration in the longitudinal direction of the vehicle body using inertial force, and an acceleration that calculates an acceleration in the traveling direction of the vehicle based on a displacement in the traveling direction of the vehicle. A calculation device, and a calculation device for obtaining the longitudinal inclination θ of the vehicle body from the acceleration g detected by the acceleration sensor, the acceleration A calculated by the acceleration calculation device, and the gravitational acceleration G. According to the present invention, the vehicle body using the acceleration sensor that detects the acceleration in the longitudinal direction of the vehicle body using the inertia force and the acceleration calculation device that calculates the acceleration in the vehicle traveling direction based on the displacement in the vehicle traveling direction. Because the acceleration sensor can be installed in any of the vehicle bodies, the degree of freedom of installation location is high, and the data to be input to the acceleration calculation device is attached to the vehicle. The data used for the existing speedometer can be used, and the inclination of the vehicle body can be obtained by solving a simple trigonometric function expression, so a complicated algorithm and a complicated electric circuit therefor are not required Therefore, it has the effect of being inexpensive.

請求項２に記載の発明は、特に、請求項１記載の車体の前後方向の傾き検出装置に、前記車体の前後方向の傾き検出装置により求めたθに基づいて車両の前照灯の光軸の方向を調整する光軸調整装置を付加したもので、この構成によれば、請求項１に記載の発明と同様の効果を得ると共に、車両の前照灯の光軸方向を適切に調整することができるため、対向車の運転手に眩光を与えることを防止し、さらに本車両の運転手の夜間時における視認性を適切に確保することができるという作用効果を有するものである。   According to the second aspect of the present invention, in particular, in the vehicle body front-rear direction inclination detection device according to the first aspect, the optical axis of the vehicle headlamp is calculated based on θ obtained by the vehicle body front-rear direction inclination detection device. With this configuration, the same effect as that of the first aspect of the invention can be obtained, and the optical axis direction of the vehicle headlamp can be appropriately adjusted. Therefore, it is possible to prevent glare from being given to the driver of the oncoming vehicle and further to ensure the visibility at night of the driver of the vehicle.

請求項３に記載の発明は、特に、車体のピッチ角方向の角速度を検出する角速度センサと、前記車体の前後方向の傾き検出装置の値と前記角速度センサの値に基づいて前記光軸調整装置を動作させる制御装置とを備えたもので、この構成によれば、請求項１に記載の計算装置に加え、角速度センサによっても車体の前後方向の傾きを検出することが可能となり、冗長性が増し検出の信頼性が向上するという作用効果を有するものである。   The invention according to claim 3 particularly relates to an angular velocity sensor that detects an angular velocity in the pitch angle direction of the vehicle body, and the optical axis adjusting device based on the value of the inclination detection device of the vehicle body in the longitudinal direction and the value of the angular velocity sensor. With this configuration, in addition to the calculation device according to claim 1, it is possible to detect the inclination of the vehicle body in the front-rear direction by using an angular velocity sensor, and redundancy is achieved. This has the effect of improving the reliability of additional detection.

本発明の車体の前後方向の傾き検出装置は、慣性力を利用して車体の前後方向の加速度を検出する加速度センサと、車両の進行方向の変位を基に車両の進行方向の加速度を算出する加速度算出装置とを備え、前記加速度センサが検出した加速度ｇ、前記加速度算出装置が算出した加速度Ａおよび重力加速度Ｇにより車体の前後方向の傾きθを求める計算装置を備えたものであって、車体の前後方向を検出軸として加速度を慣性力を利用して検出する加速度センサと、車両の進行方向の変位を基に車両の進行方向の加速度を算出する加速度算出装置とを利用して車体の前後方向の傾きを検出するようにしているため、設置場所の自由度が高く、また安価な車体の前後方向の傾き検出装置を得ることができるという優れた効果を奏するものである。   The vehicle body front-rear direction tilt detection apparatus according to the present invention calculates an acceleration in the vehicle traveling direction based on an acceleration sensor that detects an acceleration in the front-rear direction of the vehicle body using inertial force and a displacement in the vehicle traveling direction. An acceleration calculation device, and a calculation device for obtaining a longitudinal inclination θ of the vehicle body from the acceleration g detected by the acceleration sensor, the acceleration A calculated by the acceleration calculation device, and the gravitational acceleration G. Using an acceleration sensor that detects the acceleration using the inertial force with the longitudinal direction of the vehicle as a detection axis, and an acceleration calculation device that calculates the acceleration in the traveling direction of the vehicle based on the displacement in the traveling direction of the vehicle. Since the inclination of the direction is detected, there is an excellent effect that the degree of freedom of the installation location is high, and an inexpensive vehicle body inclination detection device can be obtained.

（実施の形態１）
以下、本発明の特に請求項１、２に記載の発明について図面を参照しながら説明する。 (Embodiment 1)
Hereinafter, the invention described in the first and second aspects of the present invention will be described with reference to the drawings.

図１は本発明の実施の形態１における車体の前後方向の傾き検出装置の動作原理の第１の説明図、図２は同車体の前後方向の傾き検出装置の動作原理の第２の説明図、図３は同車体の前後方向の傾き検出装置のブロック図、図４は本発明の実施の形態１における車両の光軸方向調整装置を搭載した車両の動作の説明図である。   FIG. 1 is a first explanatory diagram of the operating principle of a vehicle body longitudinal direction detecting device according to Embodiment 1 of the present invention, and FIG. 2 is a second explanatory diagram of the operating principle of the vehicle body longitudinal direction detecting device. FIG. 3 is a block diagram of the longitudinal detection device for the vehicle body, and FIG. 4 is an explanatory view of the operation of the vehicle equipped with the vehicle optical axis direction adjusting device according to Embodiment 1 of the present invention.

図１〜図４において、車両１は車体の一例としての自動車であり、この車両１は車体２とタイヤ３を備えている。車体２は、車両１の一部であり、主として車両１からタイヤ３を除いたもので構成されている。この点で、車体２は、自動車全体を示す車両１とは、明確に区別されている。タイヤ３は、車両１の一部であり、サスペンション等を介して車体２を支えているものである。前照灯４は車体２の前方に取り付けられた照明であり、夜間等における運転者の視認性を確保するために、車両１の前方を照らすものである。Ｘ軸は進行方向を正とする水平線と平行な軸である。α軸は車体２の前後方向の軸であり前方を正としている。β軸は前照灯４からの発せられる照明の光軸である。なお、前照灯４からの発せられる照明の光束は、平行な光束ではなく、前方に進むにしたがって広がっているものである。図１、図２および図４に示す光軸はその光束の中央部を示しているものである。   1 to 4, a vehicle 1 is an automobile as an example of a vehicle body, and the vehicle 1 includes a vehicle body 2 and tires 3. The vehicle body 2 is a part of the vehicle 1 and is mainly configured by removing the tire 3 from the vehicle 1. In this respect, the vehicle body 2 is clearly distinguished from the vehicle 1 that represents the entire automobile. The tire 3 is a part of the vehicle 1 and supports the vehicle body 2 via a suspension or the like. The headlamp 4 is an illumination mounted in front of the vehicle body 2 and illuminates the front of the vehicle 1 in order to ensure the visibility of the driver at night. The X axis is an axis parallel to a horizontal line with the traveling direction being positive. The α axis is the longitudinal axis of the vehicle body 2 and the front is positive. The β axis is the optical axis of the illumination emitted from the headlamp 4. Note that the luminous flux of the illumination emitted from the headlamp 4 is not a parallel luminous flux but spreads as it advances forward. The optical axes shown in FIGS. 1, 2 and 4 indicate the central part of the luminous flux.

加速度センサ５は、車体２に設けられており、α軸をその検知方向としている。加速度センサ５としては、慣性力を利用して検出するものが用いられている。そのような加速度センサ５の検出原理は、加速度センサ５内に弾性体（図示せず）を介して質量部（図示せず）を形成しておき、加速度が加わった際に、加速度センサの中で質量部が加速度方向と反対の方向へ移動することを利用したものである。このような加速度センサ５には公知のものがあり、それらを使用することができる。加速度算出装置６は、車両１の進行方向の変位を基に車両１の加速度を算出するものである。加速度とは、変位を時間で２回微分したものであるので、変位、または速度を入力情報として得ることができれば、加速度の算出は可能である。通常の自動車においては進行方向の変位を基に速度を検出する速度形が備わっていることを考慮すると、この速度計に入力する情報、または速度計から出力される情報を利用することで、車両１の加速度を算出することができる。   The acceleration sensor 5 is provided on the vehicle body 2 and uses the α axis as its detection direction. As the acceleration sensor 5, a sensor that uses inertial force is used. The detection principle of such an acceleration sensor 5 is that a mass part (not shown) is formed in the acceleration sensor 5 via an elastic body (not shown), and when acceleration is applied, This utilizes the fact that the mass part moves in the direction opposite to the acceleration direction. There are known acceleration sensors 5 such as these, which can be used. The acceleration calculation device 6 calculates the acceleration of the vehicle 1 based on the displacement in the traveling direction of the vehicle 1. Since the acceleration is obtained by differentiating the displacement twice with respect to time, the acceleration can be calculated if the displacement or speed can be obtained as input information. Considering that a normal automobile has a speed form that detects the speed based on the displacement in the traveling direction, by using the information input to this speedometer or the information output from the speedometer, the vehicle 1 acceleration can be calculated.

計算装置７は、加速度センサ５および加速度算出装置６の出力を基に車体２の傾きθを計算する装置である。   The calculation device 7 is a device that calculates the inclination θ of the vehicle body 2 based on the outputs of the acceleration sensor 5 and the acceleration calculation device 6.

以下、この傾きθの計算方法について説明をする。   Hereinafter, a method for calculating the inclination θ will be described.

加速度センサ５が検出する加速度をｇ、重力加速度のα軸成分をｇ1、車両１の速度変化に起因する加速度のα軸成分をｇ2とすると、ｇはｇ1とｇ2との和で求まるものである。 Assuming that the acceleration detected by the acceleration sensor 5 is g, the α-axis component of the gravitational acceleration is g 1 , and the α-axis component of the acceleration caused by the speed change of the vehicle 1 is g 2 , g is the sum of g 1 and g 2. It is what you want.

図１は、車体２の傾きと加速度センサ５との関係を示しており、この状態では、車両１の速度に変化はないものとする。この状態において、加速度センサ５には重力加速度Ｇのα軸成分が検出される。車体２の傾き、即ち、Ｘ軸とα軸とがなす角度をθとすると、加速度センサ５が検知する重力加速度Ｇのα軸成分ｇ1は、以下の式で表すことができる。 FIG. 1 shows the relationship between the inclination of the vehicle body 2 and the acceleration sensor 5, and it is assumed that the speed of the vehicle 1 does not change in this state. In this state, the acceleration sensor 5 detects the α-axis component of the gravitational acceleration G. When the inclination of the vehicle body 2, that is, the angle formed by the X axis and the α axis is θ, the α axis component g 1 of the gravitational acceleration G detected by the acceleration sensor 5 can be expressed by the following equation.

ｇ1＝Ｇ・ｓｉｎθ
なお、上記式において、θは、車体２の前方が上を向く方向を正とし、加速度センサ５が検知する重力加速度Ｇのα軸成分ｇ1は、加速度センサ５に印加される慣性力が車体２の後方向、言い換えると、加速度センサ５の質量部（図示せず）が車体２の後方向に引張られる場合を正としている。 g 1 = G · sin θ
In the above equation, θ is positive when the front of the vehicle body 2 faces upward, and the α-axis component g 1 of the gravitational acceleration G detected by the acceleration sensor 5 is the inertial force applied to the acceleration sensor 5. 2, the case where the mass part (not shown) of the acceleration sensor 5 is pulled in the rear direction of the vehicle body 2 is positive.

次に、車体２の傾きと加速度算出装置６との関係について、図２を用いて説明する。図２において、車両１には速度の変化による加速度が生じているとし、重力加速度の影響は除外して考える。加速度算出装置６は、車両１の変位に基づいて加速度Ａを算出するものなので、この加速度Ａとそのα軸成分ｇ2は、以下の式で表すことができる。 Next, the relationship between the inclination of the vehicle body 2 and the acceleration calculation device 6 will be described with reference to FIG. In FIG. 2, it is assumed that acceleration due to a change in speed occurs in the vehicle 1, and the influence of gravitational acceleration is excluded. Since the acceleration calculation device 6 calculates the acceleration A based on the displacement of the vehicle 1, the acceleration A and its α-axis component g 2 can be expressed by the following equations.

ｇ2＝Ａ・ｃｏｓθ
上記式において、加速度Ａは、車両１が前方方向に正の加速度が生じている状態、言い換えると、車両１の速度が増加している状態を正としている。 g 2 = A · cos θ
In the above equation, the acceleration A is positive when the vehicle 1 is generating a positive acceleration in the forward direction, in other words, when the speed of the vehicle 1 is increasing.

加速度センサ５が検出する加速度ｇは、前述したように、重力加速度に起因する加速度のα軸成分ｇ1と車両１の速度変化に起因する加速度のα成分ｇ2との和であるから、以下の式が成立する。 As described above, the acceleration g detected by the acceleration sensor 5 is the sum of the α-axis component g 1 of the acceleration caused by the gravitational acceleration and the α component g 2 of the acceleration caused by the speed change of the vehicle 1. The following formula is established.

ｇ＝ｇ1＋ｇ2＝Ｇ・ｓｉｎθ＋Ａ・ｃｏｓθ
上記式において、重力加速度Ｇは地域によって一定とみなせる定数であり、加速度算出装置６による加速度Ａは変位または速度の測定に基づいて算出できる値であり、ｇは加速度センサ５の値であるから、上記式をθについて解くことは可能であり、これにより、車体２の傾きを求めることができる。上記式をθについて解く方法は、数学的に周知の方法により求めることができるものであり、具体的には、下記に示す計算式で求めることができる。 g = g 1 + g 2 = G · sin θ + A · cos θ
In the above equation, the gravitational acceleration G is a constant that can be considered constant depending on the region, the acceleration A by the acceleration calculating device 6 is a value that can be calculated based on the measurement of displacement or velocity, and g is the value of the acceleration sensor 5. It is possible to solve the above equation with respect to θ, whereby the inclination of the vehicle body 2 can be obtained. The method of solving the above equation for θ can be obtained by a mathematically well-known method, and specifically, can be obtained by the following calculation formula.

θ＝ｓｉｎ-1（ｇ／（Ｇ2＋Ａ2）1/2）−φ
ただし、φは以下の式で定義される値とする。 θ = sin −1 (g / (G 2 + A 2 ) 1/2 ) −φ
However, φ is a value defined by the following equation.

φ＝ｃｏｓ-1（Ｇ／（Ｇ2＋Ａ2）1/2）
以上の計算を計算装置７で行うことにより、車体２の前後方向の傾きを検出することができる。 φ = cos −1 (G / (G 2 + A 2 ) 1/2 )
By performing the above calculation by the calculation device 7, it is possible to detect the inclination of the vehicle body 2 in the front-rear direction.

次に、以上のような車体の前後方向の傾き検出装置を用いた車両の光軸方向調整装置について説明をする。   Next, a description will be given of a vehicle optical axis direction adjusting device using the vehicle body front-rear direction inclination detecting device as described above.

図４において、図４（ａ）は車体２の前後方向のα軸が水平の場合を示している。この場合、前照灯４の光軸であるβ軸は、運転者の視認性を良好にするために適切な方向に設定されている。具体的には、水平に対し下を向いた方向に設定され、前照灯４の光が車両１の前方方向の所定距離にある路面を照らすようになっている。   4, FIG. 4 (a) shows a case where the longitudinal axis of the vehicle body 2 is horizontal. In this case, the β axis that is the optical axis of the headlamp 4 is set in an appropriate direction in order to improve the driver's visibility. Specifically, it is set in a direction facing downward with respect to the horizontal, and the light of the headlamp 4 illuminates a road surface at a predetermined distance in the forward direction of the vehicle 1.

次に図４（ｂ）は、車体２の前後方向のα軸が水平に対し車体２が上方を向く方向に傾いているが、車両の光軸方向調整装置を動作させていない状態のものである。この場合には、前照灯４の光軸β軸は所定距離の前方の路面を照らすときよりも、さらに前方を照らす方向や、水平方向または水平よりも上方向を向くものとなってしまう。   Next, FIG. 4B shows the state in which the longitudinal axis α of the vehicle body 2 is tilted in the direction in which the vehicle body 2 faces upward with respect to the horizontal, but the vehicle optical axis direction adjusting device is not operated. is there. In this case, the optical axis β-axis of the headlamp 4 is directed further in the direction of illuminating the front, in the horizontal direction, or in the upward direction from the horizontal, compared to when illuminating the road surface ahead of a predetermined distance.

これに対し、図４（ｃ）においては、図４（ｂ）と同様に車体２の前後方向のα軸が水平軸に対して傾いているものの、車体２の傾きを検知し、この傾きに対応して前照灯４の光軸β軸の方向を調整して所定の距離の前方の路面を照らすようにしている。   On the other hand, in FIG. 4C, the α axis in the front-rear direction of the vehicle body 2 is inclined with respect to the horizontal axis as in FIG. Correspondingly, the direction of the optical axis β axis of the headlamp 4 is adjusted to illuminate the road surface ahead of a predetermined distance.

このときの車体２の傾きの検出方法は、図１〜図３に示した原理に基づくものである。   The method of detecting the tilt of the vehicle body 2 at this time is based on the principle shown in FIGS.

以上説明したように、本発明の車両の光軸方向調整装置は、車体２の傾きを検出し、その傾きに応じて、車体２の光軸β軸を動かすものである。例えば、車体２の前方が上を向く方向にθ傾いた場合には、前照灯４の光軸β軸を車体２が傾いていないときの角度に対して下向きにθ傾ければよい。このとき、前照灯４の光軸β軸を傾けるための方法としては、モータの動力を利用する方法が考えられる。   As described above, the vehicle optical axis direction adjusting device of the present invention detects the inclination of the vehicle body 2 and moves the optical axis β axis of the vehicle body 2 in accordance with the inclination. For example, when the front of the vehicle body 2 is inclined by θ in the upward direction, the optical axis β axis of the headlamp 4 may be inclined by θ downward with respect to the angle when the vehicle body 2 is not inclined. At this time, as a method for inclining the optical axis β axis of the headlamp 4, a method using the power of the motor can be considered.

以上のように本発明の実施の形態１における車体の前後方向の傾き検出装置は、慣性力を利用して車体２の前後方向の加速度を検出する加速度センサ５と、車体２の進行方向の変位を基に車体２の進行方向の加速度を算出する加速度算出装置６とを備え、前記加速度センサ５が検出した加速度ｇ、前記加速度算出装置６が算出した加速度Ａおよび重力加速度Ｇにより車体の前後方向の傾きθを求める計算装置７を備えたもので、加速度センサ５は車体２のいずれに設置してもよく、設置場所の自由度が高く、また加速度算出装置６に入力するデータは車両１に取り付けられている速度計に使用するデータを用いることで新たなセンサは不要であり、また単純な三角関数の式を解くことで車体２の傾きを求めることができるため、複雑なアルゴリズムおよびそのための複雑な電気回路を必要としないため安価であるという作用効果を有するものである。   As described above, the vehicle body front-rear direction inclination detection device according to the first embodiment of the present invention uses the inertial force to detect the front-rear direction acceleration of the vehicle body 2 and the displacement of the vehicle body 2 in the traveling direction. And an acceleration calculation device 6 for calculating the acceleration in the traveling direction of the vehicle body 2 based on the acceleration g detected by the acceleration sensor 5, the acceleration A calculated by the acceleration calculation device 6, and the gravitational acceleration G. The acceleration sensor 5 may be installed on any of the vehicle bodies 2 and has a high degree of freedom in installation location, and data to be input to the acceleration calculation device 6 is stored in the vehicle 1. By using the data used for the installed speedometer, a new sensor is not necessary, and the inclination of the vehicle body 2 can be obtained by solving a simple trigonometric function. Since prism and does not require complicated electrical circuitry therefor and has a effect that it is inexpensive.

また、本発明の実施の形態１における車両の光軸方向調整装置は、特に、前述の車体２の前後方向の傾き検出装置により求めたθに基づいて車両１の前照灯の光軸であるβ軸の方向を調整する光軸調整装置を付加したもので、この構成によれば、車両１の前照灯の光軸であるβ軸の方向を適切に調整することができるため、対向車の運転手に眩光を与えることを防止し、さらに車体２の運転手の夜間時における視認性を適切に確保することができるという作用効果を有するものである。   In addition, the vehicle optical axis direction adjusting device according to the first embodiment of the present invention is the optical axis of the headlamp of the vehicle 1 based on θ obtained by the above-described longitudinal inclination detecting device of the vehicle body 2 in particular. An optical axis adjustment device that adjusts the direction of the β axis is added, and according to this configuration, the direction of the β axis that is the optical axis of the headlamp of the vehicle 1 can be appropriately adjusted. It is possible to prevent glare from being given to the driver of the vehicle and to ensure the visibility of the driver of the vehicle body 2 at night.

（実施の形態２）
以下、本発明の特に請求項３に記載の発明について図面を参照しながら説明する。 (Embodiment 2)
Hereinafter, the invention according to the third aspect of the present invention will be described with reference to the drawings.

本発明の実施の形態２における車両の光軸方向調整装置は、基本的には実施の形態１における車両の光軸方向調整装置に対して、さらに角速度センサを付加したものである。   The vehicle optical axis direction adjusting device according to the second embodiment of the present invention is basically obtained by adding an angular velocity sensor to the vehicle optical axis direction adjusting device according to the first embodiment.

図５は、本発明の実施の形態２における車両の光軸方向調整装置の動作の説明図である。   FIG. 5 is an explanatory diagram of the operation of the vehicle optical axis direction adjusting device according to Embodiment 2 of the present invention.

図５において、角速度センサは車体２のピッチ角方向の角速度を検出するために、図５の紙面前後方向、即ち車両１の進行方向を前方としたときの左右方向を検出軸Ｙとして車体２に取り付けられており、この検出軸周りの角速度、即ち、図５の矢印で示した方向の角速度を検出することができる。   In FIG. 5, the angular velocity sensor detects the angular velocity in the pitch angle direction of the vehicle body 2, so that the vehicle body 2 has the detection axis Y as the detection axis Y in the front-rear direction of FIG. 5, that is, when the vehicle 1 travels forward. The angular velocity around the detection axis, that is, the angular velocity in the direction indicated by the arrow in FIG. 5 can be detected.

このように角速度センサを車体２に取り付けることによって、車体２の前後方向の傾きに対して前照灯４の光軸β軸の調整を行うことができる。この角速度センサを用いた前照灯４の光軸β軸の調整は、デジタルビデオムービーや、デジタルスチルカメラなどの手ブレ防止装置と同じ原理に立つものである。即ち、車両１の進行方向に対する左右方向軸周りの角速度と反対の方向に前照灯４の光軸β軸を回転させる原理である。具体的には、通常、角速度センサからの角速度情報として出力される物性値は電圧であるので、この電圧値に応じた速さで前照灯４の光軸β軸を車体２に生じている角速度に対する反対方向に回転させればよい。より具体的には、角速度センサからの電圧出力に対し適当な増幅を行い、前照灯４の光軸β軸を回転させる制御装置（図示せず）を動作させることにより、車体２の傾きに対する前照灯４の光軸β軸の調整を行うことができる。   By attaching the angular velocity sensor to the vehicle body 2 in this manner, the optical axis β axis of the headlamp 4 can be adjusted with respect to the inclination of the vehicle body 2 in the front-rear direction. The adjustment of the optical axis β-axis of the headlamp 4 using this angular velocity sensor is based on the same principle as that of an anti-shake device such as a digital video movie or a digital still camera. That is, this is the principle of rotating the optical axis β axis of the headlamp 4 in the direction opposite to the angular velocity around the left-right axis with respect to the traveling direction of the vehicle 1. Specifically, since the physical property value output as angular velocity information from the angular velocity sensor is normally a voltage, the optical axis β axis of the headlamp 4 is generated in the vehicle body 2 at a speed according to this voltage value. What is necessary is just to rotate in the opposite direction with respect to angular velocity. More specifically, by appropriately amplifying the voltage output from the angular velocity sensor and operating a control device (not shown) that rotates the optical axis β axis of the headlamp 4, The optical axis β axis of the headlamp 4 can be adjusted.

角速度センサを用いる場合においては、車体２の角速度、即ち、前後方向への傾く速さを検出することができるが、絶対的な車体２の傾き、即ち、Ｘ軸に対する傾きを直接的に検出することはできない。したがって、あらかじめ、計算装置７による車体２の前後方向の傾きを検出しておき、さらにこの傾きに応じて前照灯４の光軸β軸を調整しておけば、これを基準にして角速度センサからの出力に基づく前照灯４の光軸β軸の調整を行えばよい。このような場合において、角速度センサの検出誤差や、前照灯４の光軸β軸の調整誤差などによる累積誤差が懸念されるが、所定時間毎に計算装置７からのＸ軸に対する車体２の傾きの情報を検知して、これに基づいて前照灯４の光軸β軸を調整することによって、上記した懸念を払拭することができる。   When the angular velocity sensor is used, the angular velocity of the vehicle body 2, that is, the speed of tilting in the front-rear direction can be detected, but the absolute inclination of the vehicle body 2, that is, the tilt with respect to the X axis is directly detected. It is not possible. Therefore, if the inclination of the vehicle body 2 in the front-rear direction is detected by the calculation device 7 in advance, and the optical axis β axis of the headlamp 4 is adjusted according to this inclination, the angular velocity sensor is based on this. The optical axis β axis of the headlamp 4 may be adjusted based on the output from the headlamp 4. In such a case, there is a concern about the detection error of the angular velocity sensor and the accumulated error due to the adjustment error of the optical axis β axis of the headlamp 4, but the vehicle body 2 with respect to the X axis from the calculation device 7 every predetermined time. By detecting the tilt information and adjusting the optical axis β axis of the headlamp 4 based on this information, the above-mentioned concerns can be eliminated.

以上のように本発明の実施の形態２における車両１の光軸方向調整装置は、車体２のピッチ角方向の角速度を検出する角速度センサと、前記車体の前後方向の傾き検出装置の値と前記角速度センサの値に基づいて前記光軸調整装置を動作させる制御装置とを備えたもので、この構成によれば、請求項１に記載の計算装置７に加え、角速度センサによっても車体２の前後方向の傾きを検出することが可能となり、冗長性が増し検出の信頼性が向上するという作用効果を有するものである。   As described above, the optical axis direction adjusting device of the vehicle 1 according to the second embodiment of the present invention includes the angular velocity sensor that detects the angular velocity in the pitch angle direction of the vehicle body 2, the value of the longitudinal detection device of the vehicle body, And a control device that operates the optical axis adjustment device based on the value of the angular velocity sensor. According to this configuration, in addition to the calculation device 7 according to claim 1, the front and rear of the vehicle body 2 are also detected by the angular velocity sensor. It is possible to detect the inclination of the direction, and there is an effect that the redundancy is increased and the detection reliability is improved.

本発明に係る車体の前後方向の傾き検出装置は、車体の前後方向の傾きを検出することができるという効果を有するものであり、また、この車体の前後方向の傾き検出装置を用いた車両の光軸方向調整装置は、車体の前後方向の傾きに応じて車両の光軸方向を調整することができるものであり、自動車などの車両に適用して有用となるものである。   The vehicle body front-rear direction inclination detection device according to the present invention has an effect of being able to detect the vehicle body front-rear direction inclination. Further, the vehicle body using the vehicle body front-rear direction inclination detection device is effective. The optical axis direction adjusting device can adjust the optical axis direction of the vehicle in accordance with the inclination of the vehicle body in the front-rear direction, and is useful when applied to a vehicle such as an automobile.

本発明の実施の形態１における車体の前後方向の傾き検出装置の動作原理の第１の説明図1st explanatory drawing of the operation principle of the vehicle body front-back direction inclination detection apparatus in Embodiment 1 of this invention. 同車体の前後方向の傾き検出装置の動作原理の第２の説明図2nd explanatory drawing of the operation principle of the inclination detection apparatus of the front-back direction of the vehicle body 同車体の前後方向の傾き検出装置のブロック図Block diagram of the longitudinal detection device for the vehicle body 本発明の実施の形態１における車両の光軸方向調整装置を搭載した車両の動作の説明図Explanatory drawing of operation | movement of the vehicle carrying the optical-axis direction adjustment apparatus of the vehicle in Embodiment 1 of this invention. 本発明の実施の形態２における車両の光軸方向調整装置の動作の説明図Explanatory drawing of operation | movement of the optical axis direction adjustment apparatus of the vehicle in Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ 車両
２ 車体
３ タイヤ
４ 前照灯
５ 加速度センサ
６ 加速度算出装置
７ 計算装置 DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Tire 4 Headlamp 5 Acceleration sensor 6 Acceleration calculation apparatus 7 Calculation apparatus

Claims (3)

慣性力を利用して車体の前後方向の加速度を検出する加速度センサと、車両の進行方向の変位を基に車両の進行方向の加速度を算出する加速度算出装置とを備え、前記加速度センサが検出した加速度ｇ、前記加速度算出装置が算出した加速度Ａおよび重力加速度Ｇにより車体の前後方向の傾きθを求める計算装置を備えた車体の前後方向の傾き検出装置。 An acceleration sensor that detects an acceleration in the longitudinal direction of the vehicle body using inertial force; and an acceleration calculation device that calculates an acceleration in the traveling direction of the vehicle based on a displacement in the traveling direction of the vehicle, the acceleration sensor detecting A vehicle body front-rear direction inclination detection device including a calculation device for obtaining a vehicle body front-rear direction inclination θ from acceleration g, acceleration A calculated by the acceleration calculation device, and gravitational acceleration G. 請求項１記載の車体の前後方向の傾き検出装置に、前記車体の前後方向の傾き検出装置により求めたθに基づいて車両の前照灯の光軸の方向を調整する光軸調整装置を付加した車両の光軸方向調整装置。 An optical axis adjustment device for adjusting the direction of the optical axis of a vehicle headlamp based on θ obtained by the vehicle body front-rear direction inclination detection device is added to the vehicle body front-rear direction inclination detection device according to claim 1. Device for adjusting the optical axis direction of a vehicle. 車体のピッチ角方向の角速度を検出する角速度センサと、前記車体の前後方向の傾き検出装置の値と前記角速度センサの値に基づいて前記光軸調整装置を動作させる制御装置とを備えた請求項２記載の車両の光軸方向調整装置。 An angular velocity sensor that detects an angular velocity in a pitch angle direction of a vehicle body, and a controller that operates the optical axis adjustment device based on a value of a tilt detection device of the longitudinal direction of the vehicle body and a value of the angular velocity sensor. 3. The optical axis direction adjusting device for a vehicle according to 2.
JP2007301500A 2007-11-21 2007-11-21 Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same Pending JP2009126268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007301500A JP2009126268A (en) 2007-11-21 2007-11-21 Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007301500A JP2009126268A (en) 2007-11-21 2007-11-21 Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same

Publications (1)

Publication Number Publication Date
JP2009126268A true JP2009126268A (en) 2009-06-11

Family

ID=40817627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007301500A Pending JP2009126268A (en) 2007-11-21 2007-11-21 Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same

Country Status (1)

Country Link
JP (1) JP2009126268A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447127A2 (en) 2010-10-26 2012-05-02 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
CN102537853A (en) * 2010-11-02 2012-07-04 株式会社小糸制作所 Control device of vehicular lamp, vehicular lamp system and control method thereof
CN102563546A (en) * 2010-11-02 2012-07-11 株式会社小糸制作所 Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
EP2514636A2 (en) 2011-04-22 2012-10-24 Koito Manufacturing Co., Ltd. Control device for vehicle lamp and vehicle lamp system
EP2524840A2 (en) 2011-05-18 2012-11-21 Koito Manufacturing Co., Ltd. Control apparatus for vehicle lamp and vehicle lamp system
EP2527199A2 (en) 2011-05-27 2012-11-28 Koito Manufacturing Co., Ltd. Vehicle lamp control apparatus and vehicle lamp system
EP2529976A2 (en) 2011-06-03 2012-12-05 Koito Manufacturing Co., Ltd. Vehicle lamp control device and vehicle lamp system
EP2554432A1 (en) 2011-08-03 2013-02-06 Koito Manufacturing Co., Ltd. Sensor mounting structure
JP2013035511A (en) * 2011-08-10 2013-02-21 Koito Mfg Co Ltd Control device for vehicular lighting fixture, and vehicular lighting fixture system
JP2013071477A (en) * 2011-09-26 2013-04-22 Koito Mfg Co Ltd Vehicle lamp control apparatus
JP2013129284A (en) * 2011-12-21 2013-07-04 Honda Motor Co Ltd Pitching angle processing apparatus
US8905604B2 (en) 2010-12-15 2014-12-09 Koito Manufacturing Co., Ltd. Vehicle lamp control apparatus
JP2014232094A (en) * 2013-05-30 2014-12-11 三菱電機株式会社 Tilt angle detection device
JP2015091701A (en) * 2015-01-14 2015-05-14 株式会社小糸製作所 Control device for vehicle lamp, and vehicle lamp system
JP2015187001A (en) * 2010-10-26 2015-10-29 株式会社小糸製作所 Vehicular lamp fitting control device and vehicular lamp fitting system
FR3021605A1 (en) * 2014-06-03 2015-12-04 Valeo Vision METHOD AND SYSTEM FOR CORRECTING THE ORIENTATION OF THE PROJECTERS OF A MOTOR VEHICLE
EP2963385A1 (en) * 2014-07-03 2016-01-06 Memsic, Inc. Method and apparatus for determining the inclination of a moving vehicle with respect to the road and for performing dynamic headlight leveling
JP2016153306A (en) * 2010-07-01 2016-08-25 株式会社小糸製作所 Control device for vehicle lighting fixture, optical axis adjustment method for vehicle lighting fixture, calculation method for vehicle posture angle information, and system for vehicle lighting fixture
JP2016182958A (en) * 2016-06-24 2016-10-20 株式会社小糸製作所 Control device for vehicular lighting appliance
JPWO2017208327A1 (en) * 2016-05-31 2018-07-05 三菱電機株式会社 Optical axis control device for headlamps
EP3406487A1 (en) 2017-05-19 2018-11-28 Stanley Electric Co., Ltd. Control device for vehicular lamp and vehicle lighting system
US10286833B2 (en) 2017-05-19 2019-05-14 Stanley Electric Co., Ltd. Control device for vehicular lamp and vehicle lighting system
WO2020031255A1 (en) * 2018-08-07 2020-02-13 三菱電機株式会社 Headlamp optical axis control device
CN113147569A (en) * 2021-03-26 2021-07-23 北京海纳川汽车部件股份有限公司 Method and system for adjusting the illumination height of a dipped headlight
USRE49609E1 (en) 2010-10-26 2023-08-15 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017197193A (en) * 2010-07-01 2017-11-02 株式会社小糸製作所 Control device for vehicle lighting fixture
JP2016153306A (en) * 2010-07-01 2016-08-25 株式会社小糸製作所 Control device for vehicle lighting fixture, optical axis adjustment method for vehicle lighting fixture, calculation method for vehicle posture angle information, and system for vehicle lighting fixture
JP2022113788A (en) * 2010-10-26 2022-08-04 株式会社小糸製作所 Control device of vehicle lamp
JP7250983B2 (en) 2010-10-26 2023-04-03 株式会社小糸製作所 Vehicle lamp control device
JP2018150051A (en) * 2010-10-26 2018-09-27 株式会社小糸製作所 Control device of vehicle lamp
JP2017197194A (en) * 2010-10-26 2017-11-02 株式会社小糸製作所 Control device of vehicle lamp
JP2021062866A (en) * 2010-10-26 2021-04-22 株式会社小糸製作所 Control device of vehicle lamp
JP7084514B2 (en) 2010-10-26 2022-06-14 株式会社小糸製作所 Vehicle lighting control device
JP2022107780A (en) * 2010-10-26 2022-07-22 株式会社小糸製作所 Control device of vehicle lamp
US8838343B2 (en) 2010-10-26 2014-09-16 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
USRE49776E1 (en) 2010-10-26 2024-01-02 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
JP2019172260A (en) * 2010-10-26 2019-10-10 株式会社小糸製作所 Method for calculating vehicle attitude angle
JP7308334B2 (en) 2010-10-26 2023-07-13 株式会社小糸製作所 Control device for vehicle lamp and method for calculating vehicle attitude angle information
EP2447127A3 (en) * 2010-10-26 2013-02-27 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
EP2447127A2 (en) 2010-10-26 2012-05-02 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
USRE49609E1 (en) 2010-10-26 2023-08-15 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
JP2015187001A (en) * 2010-10-26 2015-10-29 株式会社小糸製作所 Vehicular lamp fitting control device and vehicular lamp fitting system
CN102537853A (en) * 2010-11-02 2012-07-04 株式会社小糸制作所 Control device of vehicular lamp, vehicular lamp system and control method thereof
CN102563546A (en) * 2010-11-02 2012-07-11 株式会社小糸制作所 Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
US9096171B2 (en) 2010-11-02 2015-08-04 Koito Manufacturing Co., Ltd. Vehicle lamp controller, vehicle lamp system, and vehicle lamp control method
US8905604B2 (en) 2010-12-15 2014-12-09 Koito Manufacturing Co., Ltd. Vehicle lamp control apparatus
EP2514636A2 (en) 2011-04-22 2012-10-24 Koito Manufacturing Co., Ltd. Control device for vehicle lamp and vehicle lamp system
US8814402B2 (en) 2011-04-22 2014-08-26 Koito Manufacturing Co., Ltd. Control device for vehicle lamp and vehicle lamp system
JP2012228891A (en) * 2011-04-22 2012-11-22 Koito Mfg Co Ltd Control device for vehicle lamp, and vehicle lamp system
EP2524840A2 (en) 2011-05-18 2012-11-21 Koito Manufacturing Co., Ltd. Control apparatus for vehicle lamp and vehicle lamp system
US9238431B2 (en) 2011-05-18 2016-01-19 Koito Manufacturing Co., Ltd. Control apparatus for vehicle lamp and vehicle lamp system
JP2012240512A (en) * 2011-05-18 2012-12-10 Koito Mfg Co Ltd Control apparatus for vehicle lamp and vehicle lamp system
CN102795148A (en) * 2011-05-27 2012-11-28 株式会社小糸制作所 Vehicle lamp control apparatus and vehicle lamp system
EP2527199A2 (en) 2011-05-27 2012-11-28 Koito Manufacturing Co., Ltd. Vehicle lamp control apparatus and vehicle lamp system
US8983734B2 (en) 2011-05-27 2015-03-17 Koito Manufacturing Co., Ltd. Vehicle lamp control apparatus and vehicle lamp system
JP2012245891A (en) * 2011-05-27 2012-12-13 Koito Mfg Co Ltd Vehicle lamp control apparatus and vehicle lamp system
US9067533B2 (en) 2011-06-03 2015-06-30 Koito Manufacturing Co., Ltd. Vehicle lamp control device and vehicle lamp system
EP2529976A2 (en) 2011-06-03 2012-12-05 Koito Manufacturing Co., Ltd. Vehicle lamp control device and vehicle lamp system
EP2554432A1 (en) 2011-08-03 2013-02-06 Koito Manufacturing Co., Ltd. Sensor mounting structure
JP2013035511A (en) * 2011-08-10 2013-02-21 Koito Mfg Co Ltd Control device for vehicular lighting fixture, and vehicular lighting fixture system
JP2013071477A (en) * 2011-09-26 2013-04-22 Koito Mfg Co Ltd Vehicle lamp control apparatus
JP2013129284A (en) * 2011-12-21 2013-07-04 Honda Motor Co Ltd Pitching angle processing apparatus
JP2014232094A (en) * 2013-05-30 2014-12-11 三菱電機株式会社 Tilt angle detection device
EP2952385A1 (en) * 2014-06-03 2015-12-09 Valeo Vision Method and system for correcting the position of the headlights of a motor vehicle
FR3021605A1 (en) * 2014-06-03 2015-12-04 Valeo Vision METHOD AND SYSTEM FOR CORRECTING THE ORIENTATION OF THE PROJECTERS OF A MOTOR VEHICLE
US9649973B2 (en) 2014-06-03 2017-05-16 Valeo Vision Method and system for correcting the orientation of the headlights of a motor vehicle
CN105270255A (en) * 2014-06-03 2016-01-27 法雷奥照明公司 Method and system for correcting the position of the headlights of a motor vehicle
EP2963385A1 (en) * 2014-07-03 2016-01-06 Memsic, Inc. Method and apparatus for determining the inclination of a moving vehicle with respect to the road and for performing dynamic headlight leveling
CN105291958B (en) * 2014-07-03 2017-08-25 美新半导体（无锡）有限公司 The method and apparatus that Mechatronic Systems is controlled relative to the inclination angle of road based on vehicle
CN105291958A (en) * 2014-07-03 2016-02-03 美新半导体（无锡）有限公司 Method and apparatus for determining the inclination of a moving vehicle with respect to the road
JP2015091701A (en) * 2015-01-14 2015-05-14 株式会社小糸製作所 Control device for vehicle lamp, and vehicle lamp system
JPWO2017208327A1 (en) * 2016-05-31 2018-07-05 三菱電機株式会社 Optical axis control device for headlamps
JP2016182958A (en) * 2016-06-24 2016-10-20 株式会社小糸製作所 Control device for vehicular lighting appliance
US10286833B2 (en) 2017-05-19 2019-05-14 Stanley Electric Co., Ltd. Control device for vehicular lamp and vehicle lighting system
EP3406487A1 (en) 2017-05-19 2018-11-28 Stanley Electric Co., Ltd. Control device for vehicular lamp and vehicle lighting system
WO2020031255A1 (en) * 2018-08-07 2020-02-13 三菱電機株式会社 Headlamp optical axis control device
JPWO2020031255A1 (en) * 2018-08-07 2020-10-22 三菱電機株式会社 Optical axis controller for headlights
CN113147569B (en) * 2021-03-26 2023-07-28 北京海纳川汽车部件股份有限公司 Method and system for adjusting illumination height of dipped headlight
CN113147569A (en) * 2021-03-26 2021-07-23 北京海纳川汽车部件股份有限公司 Method and system for adjusting the illumination height of a dipped headlight

Similar Documents

Publication Publication Date Title
JP2009126268A (en) Longitudinal inclination detection device of vehicle body, and vehicular optical axis direction adjusting device using the same
JP6073535B2 (en) Optical axis control device for headlamps
JP2011116201A (en) Optical axis adjusting device of headlamp
US9365152B2 (en) Vehicle lamp control apparatus
JP2010143506A (en) Auto-leveling system for vehicular lamp
CN108712975B (en) Motor vehicle
JP2012228978A (en) Vehicular headlight apparatus
JP5026930B2 (en) System and method for dynamically correcting the direction of a vehicle light source
JP2009040227A (en) Vehicular headlight control device
JP2010247551A (en) Irradiation direction control device
JP2007223505A (en) Vehicular road surface contact suppressing device
JP2021185079A (en) Control device of vehicle lamp, and vehicle lamp system
US10604062B2 (en) Headlight adjusting system comprising gyroscopes
JP2010143424A (en) Auto-leveling system for vehicular lamp
JP2006300588A (en) Tilt angle detector for car
JP7037907B2 (en) Vehicle lighting control device and vehicle lighting system
JP2005014782A (en) On-vehicle display device
JP2008247210A (en) Auto leveling device
JP2011121514A (en) Apparatus and method for estimating bank angle of motorcycle
JP2817600B2 (en) Headlight device for vehicles
JP6981795B2 (en) Vehicle lighting control device and vehicle lighting system
JP5758738B2 (en) Control device for vehicular lamp
KR20100034281A (en) A system for detecting a unevenness on the road using a vehicle front camera image
JP4664219B2 (en) Irradiation direction control device for vehicular lamp
WO2018229566A1 (en) Processing unit and processing method for intervehicular distance warning system, intervehicular distance warning system, and motorcycle