JPH05213112A - Warning device for vehicle - Google Patents
Warning device for vehicleInfo
- Publication number
- JPH05213112A JPH05213112A JP4213492A JP4213492A JPH05213112A JP H05213112 A JPH05213112 A JP H05213112A JP 4213492 A JP4213492 A JP 4213492A JP 4213492 A JP4213492 A JP 4213492A JP H05213112 A JPH05213112 A JP H05213112A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- vehicle speed
- oscillator
- amplifier
- sound
- 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.)
- Withdrawn
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両用警報装置に係
り、とくに電気自動車における車両用警報装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle alarm system, and more particularly to a vehicle alarm system for electric vehicles.
【０００２】[0002]
【従来の技術】従来、利用者は車両の接近を目視あるい
はエンジン音により認識していた。2. Description of the Related Art Conventionally, a user has recognized the approach of a vehicle by visual inspection or engine sound.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来例においては、電気自動車等の低騒音車両ではエンジ
ン音による認識が困難なために、歩行者が車両を発見す
るのが遅れて事故に遭遇するという不都合があった。However, in the above-mentioned conventional example, it is difficult for a low-noise vehicle such as an electric vehicle to be recognized by the engine sound, so that a pedestrian encounters an accident with a delay in finding the vehicle. There was an inconvenience.
【０００４】[0004]
【発明の目的】本発明の目的は、かかる従来例の有する
不都合を改善し、とくに歩行者が危険の程度を音の高さ
で知ることができる車両用警報装置を提供することにあ
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicular alarm system which can improve the disadvantages of the conventional example, and in particular allows a pedestrian to know the degree of danger by the pitch of the sound.
【０００５】[0005]
【課題を解決するための手段】そこで、本発明では、車
速を計測する車速計測手段と、車速計測手段の計測結果
と車体重量に基づき発振周波数を演算する演算手段と、
演算手段にて演算された周波数信号を出力する発振器
と、発振器の出力を増幅する増幅器と、増幅器にて増幅
された信号を音として出力するスピーカとを具備すると
いう構成を採っている。これによって前述した目的を達
成しようとするものである。Therefore, in the present invention, a vehicle speed measuring means for measuring a vehicle speed, a calculating means for calculating an oscillation frequency based on a measurement result of the vehicle speed measuring means and a vehicle body weight,
The configuration is such that it includes an oscillator that outputs the frequency signal calculated by the calculation means, an amplifier that amplifies the output of the oscillator, and a speaker that outputs the signal amplified by the amplifier as sound. This aims to achieve the above-mentioned object.
【０００６】[0006]
【作用】車体重量を演算手段に入力する。車両が走行を
開始すると車速計測手段の計測結果が演算手段に入力さ
れる。演算手段は車体重量と車速計測手段の計測結果と
を用いて発振周波数を計算する。そして演算手段は計算
により求めた周波数を発振器に通知すると発振器は通知
された周波数の信号を作成し増幅器に出力する。増幅器
は入力信号を増幅しスピーカに出力すると、スピーカは
入力信号を音に変換し出力する。Function: The vehicle weight is input to the calculating means. When the vehicle starts traveling, the measurement result of the vehicle speed measuring means is input to the calculating means. The calculation means calculates the oscillation frequency using the vehicle body weight and the measurement result of the vehicle speed measurement means. Then, when the calculating means notifies the oscillator of the calculated frequency, the oscillator creates a signal of the notified frequency and outputs it to the amplifier. When the amplifier amplifies the input signal and outputs it to the speaker, the speaker converts the input signal into sound and outputs it.
【０００７】[0007]
【発明の実施例】以下、本発明の一実施例を図１ないし
図３に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【０００８】図１の実施例は、車速を計測する車速計測
手段５と、積載量を計測する車体重量計測手段６と、車
速計測手段５の計測結果と車体重量と貨物車両の場合は
さらに車体重量計測手段６の計測結果に基づき発振周波
数を演算する演算手段１と、演算手段１にて演算された
周波数信号を出力する発振器２と、発振器２の出力を増
幅する増幅器３と、増幅器３にて増幅された信号を音と
して出力するスピーカ４とから構成される。In the embodiment shown in FIG. 1, a vehicle speed measuring means 5 for measuring a vehicle speed, a vehicle body weight measuring means 6 for measuring a load amount, a measurement result of the vehicle speed measuring means 5, a vehicle body weight, and a vehicle body in the case of a freight vehicle. In the calculating means 1 for calculating the oscillation frequency based on the measurement result of the weight measuring means 6, the oscillator 2 for outputting the frequency signal calculated by the calculating means 1, the amplifier 3 for amplifying the output of the oscillator 2, and the amplifier 3. And a speaker 4 that outputs the amplified signal as a sound.
【０００９】ここでスピーカ４には指向性が高いものが
用いられ、しかも歩行者に車両の方向がよくわかるよう
にするため車両前面に装着されている。Here, a speaker having high directivity is used as the speaker 4, and is mounted on the front surface of the vehicle so that a pedestrian can easily understand the direction of the vehicle.
【００１０】次に本実施例の動作について説明する。Next, the operation of this embodiment will be described.
【００１１】．車体重量ｍ1を演算手段１に入力す
る。[0011]. The body weight m1 is input to the computing means 1.
【００１２】．貨物車両の場合は、車体重量計測手段
６の計測結果ｍ2が演算手段１に入力される。[0012]. In the case of a freight vehicle, the measurement result m2 of the vehicle body weight measuring means 6 is input to the computing means 1.
【００１３】．車両が走行を開始すると車速計測手段
５の計測結果が演算手段１に入力される。.. When the vehicle starts traveling, the measurement result of the vehicle speed measuring means 5 is input to the calculating means 1.
【００１４】．演算手段１は次の式を用いて発振周波
数ｆを計算する。.. The calculating means 1 calculates the oscillation frequency f using the following formula.
【００１５】 ｆ＝（Ａ・ｍ・ｖ2）／２＋Ｂ （１）F = (A · m · v 2 ) / 2 + B (1)
【００１６】ここで、ｍは車体重量であり貨物車両では
ｍ＝（ｍ1＋ｍ2），普通車両や軽車両ではｍ＝ｍ1であ
る。またｖは車速、Ａ，Ｂは定数である。Here, m is the weight of the vehicle body, and m = (m1 + m2) for a freight vehicle, and m = m1 for an ordinary vehicle or a light vehicle. Further, v is a vehicle speed, and A and B are constants.
【００１７】（１）式はブレーキ時の停止距離が運動量
に比例することから導き出されたものであり、発振周波
数ｆは速度の２乗に比例して高くなり、つまり速度変化
に敏感である。The expression (1) is derived from the fact that the stopping distance during braking is proportional to the momentum. The oscillation frequency f increases in proportion to the square of the speed, that is, it is sensitive to speed changes.
【００１８】図２に示されるように、交通弱者と呼ばれ
る老人の聴力は１０００［ＨZ］以上の周波数の音に対
して低下が著しいので、ここでは発振周波数を１２５〜
１０００［ＨZ］に限定する。As shown in FIG. 2, the hearing ability of an elderly person called a traffic vulnerable person is remarkably lowered with respect to the sound having a frequency of 1000 [HZ] or more.
It is limited to 1000 [Hz].
【００１９】また、一例として車体重量５０００ｋｇの
車両が車速４０ｋｍ／ｈで走行しているときは１０００
［ＨZ］の音を出力させるとするとＡ＝２．２×１
０-4、Ｂ＝１２５が得られる。Ａ，Ｂをこのように決め
ると、図３に示されるように車体重量６００ｋｇの軽車
両では、車速２０ｋｍ／ｈのときは１５１［ＨZ］，車
速４０ｋｍ／ｈのときは２３０［ＨZ］，車速６０ｋｍ
／ｈのときは３６３［ＨZ］，車速８０ｋｍ／ｈのとき
は５４７［ＨZ］，車速１００ｋｍ／ｈのときは７８５
［ＨZ］、車体重量１０００ｋｇの普通車両では、車速
２０ｋｍ／ｈのときは１６９［ＨZ］，車速４０ｋｍ／
ｈのときは３０１［ＨZ］，車速６０ｋｍ／ｈのときは
５２１［ＨZ］，車速８０ｋｍ／ｈのときは８２９［Ｈ
Z］，車速１００ｋｍ／ｈのときは１０００［ＨZ］、車
体重量５０００ｋｇの貨物車両では、車速２０ｋｍ／ｈ
のときは３５５［ＨZ］，車速４０ｋｍ／ｈのときは１
０００［ＨZ］，車速６０ｋｍ／ｈのときは１０００
［ＨZ］，車速８０ｋｍ／ｈのときは１０００［ＨZ］，
車速１００ｋｍ／ｈのときは１０００［ＨZ］となる。
１０００［ＨZ］が上限と決めているので、ここで計算
結果が１０００［ＨZ］以上の場合は１０００［ＨZ］と
している。As an example, when a vehicle having a body weight of 5000 kg is running at a vehicle speed of 40 km / h, 1000
If the sound of [HZ] is output, A = 2.2 × 1
0 −4 , B = 125 are obtained. When A and B are determined in this way, as shown in FIG. 3, in a light vehicle having a body weight of 600 kg, 151 [Hz] when the vehicle speed is 20 km / h, 230 [Hz] when the vehicle speed is 40 km / h, and the vehicle speed is 60 km
/ H, 363 [Hz], vehicle speed 80 km / h, 547 [Hz], vehicle speed 100 km / h, 785
[Hz], for a normal vehicle with a body weight of 1000 kg, when the vehicle speed is 20 km / h, 169 [Hz], vehicle speed is 40 km / h
301 [Hz] when h, 521 [Hz] when vehicle speed is 60 km / h, 829 [H when vehicle speed is 80 km / h
Z], 1000 [Hz] when the vehicle speed is 100 km / h, and 20 km / h when the freight vehicle has a body weight of 5000 kg.
355 [Hz] when, and 1 when the vehicle speed is 40 km / h
000 [Hz], 1000 when the vehicle speed is 60 km / h
[Hz], 1000 [Hz] when the vehicle speed is 80 km / h,
When the vehicle speed is 100 km / h, it becomes 1000 [Hz].
Since 1000 [Hz] is set as the upper limit, if the calculation result is 1000 [Hz] or more, it is set to 1000 [Hz].
【００２０】上記の例では３００［ＨZ］を基準にする
と軽自動車では６０ｋｍ／ｈ、普通自動車で４０ｋｍ／
ｈ、トラックで２０ｋｍ／ｈが同程度の危険度を有する
と評価される。ただし、上記計算例は一例であり、これ
に限定されるものではない。In the above example, when 300 [Hz] is used as a reference, a light vehicle is 60 km / h and an ordinary vehicle is 40 km / h.
h, 20 km / h for trucks is evaluated as having the same degree of risk. However, the above calculation example is an example, and the present invention is not limited to this.
【００２１】．演算手段１は計算により求めた周波数
を発振器２に通知する。[0021]. The calculation means 1 notifies the oscillator 2 of the frequency calculated.
【００２２】．発振器２は通知された周波数の信号を
作成し増幅器３に出力する。.. The oscillator 2 creates a signal of the notified frequency and outputs it to the amplifier 3.
【００２３】．増幅器３は入力信号を増幅しスピーカ
４に出力する。.. The amplifier 3 amplifies the input signal and outputs it to the speaker 4.
【００２４】．スピーカ４は入力信号を音に変換し出
力する。[0024]. The speaker 4 converts the input signal into sound and outputs it.
【００２５】このように、歩行者は音の高さすなわち周
波数によりその車両がどのくらい危険かを定量的に知る
ことができる。In this way, the pedestrian can quantitatively know how dangerous the vehicle is by the pitch or frequency of the sound.
【００２６】今後、音の大きさすなわち音量は規格化し
騒音にならない程度にする必要がある。そして、音量を
統一することにより、その車両との距離感がわかりやす
くなるという利点がある。In the future, it is necessary to standardize the loudness of sound, that is, the volume so that it does not become noise. And, by unifying the volume, there is an advantage that the sense of distance to the vehicle can be easily understood.
【００２７】[0027]
【発明の効果】本発明は以上のように構成され機能する
ので、これによると、車体重量が重いほど、そして速度
が速いほど発振周波数が高くなり、これがため、歩行者
は危険の程度を音の高さで知ることができ、しかも周波
数が高いほど指向性が高いため、危険度が高いほど遠く
からでも認識することができ、十分に危険を回避するこ
とができるという従来にない優れた車両用警報装置を提
供することができる。Since the present invention is constructed and functions as described above, according to this, the heavier the vehicle body and the higher the speed, the higher the oscillating frequency becomes. The higher the frequency, the higher the directivity, so the higher the degree of danger, the higher the degree of danger that can be recognized from a distance. An alarm device can be provided.
【図１】本発明の一実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図２】日本人の年齢別による聴力低下を示す説明図で
ある。FIG. 2 is an explanatory diagram showing hearing loss of Japanese according to age.
【図３】本発明における車体重量と車速と周波数との関
係の一例を示す説明図である。FIG. 3 is an explanatory diagram showing an example of the relationship between vehicle body weight, vehicle speed, and frequency in the present invention.
１：演算手段 ２：発振器 ３：増幅器 ４：スピーカ ５：車速計測手段 ６：車体重量計測手段 1: Calculation means 2: Oscillator 3: Amplifier 4: Speaker 5: Vehicle speed measurement means 6: Vehicle body weight measurement means
Claims (1)
計測手段の計測結果と車体重量に基づき発振周波数を演
算する演算手段と、前記演算手段にて演算された周波数
信号を出力する発振器と、前記発振器の出力を増幅する
増幅器と、前記増幅器にて増幅された信号を音として出
力するスピーカとから構成されることを特徴とする車両
用警報装置。1. A vehicle speed measuring means for measuring a vehicle speed, a calculating means for calculating an oscillation frequency based on a measurement result of the vehicle speed measuring means and a vehicle body weight, and an oscillator for outputting a frequency signal calculated by the calculating means. A vehicle alarm device comprising: an amplifier that amplifies the output of the oscillator; and a speaker that outputs a signal amplified by the amplifier as a sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4213492A JPH05213112A (en) | 1992-01-31 | 1992-01-31 | Warning device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4213492A JPH05213112A (en) | 1992-01-31 | 1992-01-31 | Warning device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05213112A true JPH05213112A (en) | 1993-08-24 |
Family
ID=12627476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4213492A Withdrawn JPH05213112A (en) | 1992-01-31 | 1992-01-31 | Warning device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05213112A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670098U (en) * | 1993-03-09 | 1994-09-30 | 住友電装株式会社 | Dummy sound generator for electric vehicles |
| EP0632428A2 (en) * | 1993-06-30 | 1995-01-04 | Samsung Heavy Industry Co., Ltd | Apparatus generating noise sound for electric car |
| JP2006298245A (en) * | 2005-04-22 | 2006-11-02 | Toyota Motor Corp | Alarm device for vehicle and vehicle |
| JP2011166921A (en) * | 2010-02-09 | 2011-08-25 | Nissan Motor Co Ltd | Alarm sound generating apparatus for vehicle |
| JP2011162026A (en) * | 2010-02-09 | 2011-08-25 | Nissan Motor Co Ltd | Vehicle alarm sound generator |
| DE102011056155A1 (en) | 2010-12-10 | 2012-06-14 | Anden Co., Ltd. | A vehicle sewing announcement device and method for reporting proximity of a vehicle |
| WO2012117807A1 (en) * | 2011-02-28 | 2012-09-07 | 本田技研工業株式会社 | Vehicle approach alert device for saddle-ridden electric vehicle |
| US8669858B2 (en) | 2010-02-09 | 2014-03-11 | Nissan Motor Co, Ltd. | Vehicle notification sound emitting apparatus |
| WO2014038009A1 (en) * | 2012-09-05 | 2014-03-13 | 三菱電機株式会社 | Vehicle approach notification sound generating device |
| DE102013110206A1 (en) | 2012-09-26 | 2014-03-27 | Anden Co., Ltd. | Vehicle approaching notification device |
| US9580010B2 (en) | 2013-09-27 | 2017-02-28 | Anden Co., Ltd. | Vehicle approach notification apparatus |
| JP2019525353A (en) * | 2016-08-19 | 2019-09-05 | ２２３６００８ オンタリオ インコーポレイテッド | System and method for pedestrian alert |
-
1992
- 1992-01-31 JP JP4213492A patent/JPH05213112A/en not_active Withdrawn
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670098U (en) * | 1993-03-09 | 1994-09-30 | 住友電装株式会社 | Dummy sound generator for electric vehicles |
| EP0632428A2 (en) * | 1993-06-30 | 1995-01-04 | Samsung Heavy Industry Co., Ltd | Apparatus generating noise sound for electric car |
| EP0632428A3 (en) * | 1993-06-30 | 1995-12-06 | Samsung Heavy Ind | Apparatus generating noise sound for electric car. |
| JP2006298245A (en) * | 2005-04-22 | 2006-11-02 | Toyota Motor Corp | Alarm device for vehicle and vehicle |
| JP2011166921A (en) * | 2010-02-09 | 2011-08-25 | Nissan Motor Co Ltd | Alarm sound generating apparatus for vehicle |
| JP2011162026A (en) * | 2010-02-09 | 2011-08-25 | Nissan Motor Co Ltd | Vehicle alarm sound generator |
| US8669858B2 (en) | 2010-02-09 | 2014-03-11 | Nissan Motor Co, Ltd. | Vehicle notification sound emitting apparatus |
| US8878659B2 (en) | 2010-12-10 | 2014-11-04 | Anden Co., Ltd. | Vehicle proximity annunciator device and method for notifying proximity of vehicle |
| DE102011056155A1 (en) | 2010-12-10 | 2012-06-14 | Anden Co., Ltd. | A vehicle sewing announcement device and method for reporting proximity of a vehicle |
| WO2012117807A1 (en) * | 2011-02-28 | 2012-09-07 | 本田技研工業株式会社 | Vehicle approach alert device for saddle-ridden electric vehicle |
| US9242599B2 (en) | 2011-02-28 | 2016-01-26 | Honda Motor Co., Ltd | Vehicle approach alert device for saddle-ridden electric vehicle |
| US9434305B2 (en) | 2012-09-05 | 2016-09-06 | Mitsubishi Electric Corporation | Vehicle approach notification sound generating apparatus |
| JP5832655B2 (en) * | 2012-09-05 | 2015-12-16 | 三菱電機株式会社 | Vehicle approach notification sound generator |
| WO2014038009A1 (en) * | 2012-09-05 | 2014-03-13 | 三菱電機株式会社 | Vehicle approach notification sound generating device |
| US9073477B2 (en) | 2012-09-26 | 2015-07-07 | Anden Co., Ltd. | Vehicle approach notification device |
| DE102013110206A1 (en) | 2012-09-26 | 2014-03-27 | Anden Co., Ltd. | Vehicle approaching notification device |
| DE102013110206B4 (en) | 2012-09-26 | 2019-10-24 | Anden Co., Ltd. | Vehicle approaching notification device |
| US9580010B2 (en) | 2013-09-27 | 2017-02-28 | Anden Co., Ltd. | Vehicle approach notification apparatus |
| DE112014004419B4 (en) | 2013-09-27 | 2022-05-12 | Denso Electronics Corporation | vehicle approach notification device |
| JP2019525353A (en) * | 2016-08-19 | 2019-09-05 | ２２３６００８ オンタリオ インコーポレイテッド | System and method for pedestrian alert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990408 |