JPH0216279Y2 - - Google Patents
Info
- Publication number
- JPH0216279Y2 JPH0216279Y2 JP52983U JP52983U JPH0216279Y2 JP H0216279 Y2 JPH0216279 Y2 JP H0216279Y2 JP 52983 U JP52983 U JP 52983U JP 52983 U JP52983 U JP 52983U JP H0216279 Y2 JPH0216279 Y2 JP H0216279Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- vehicle
- support
- pressure gauge
- distance
- 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.)
- Expired
Links
- 238000012360 testing method Methods 0.000 claims description 5
- 238000009781 safety test method Methods 0.000 claims 1
- 238000013112 stability test Methods 0.000 description 4
- 238000012430 stability testing Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Description
【考案の詳細な説明】
本考案は車両の安定性、特に横転(転ぷく)臨
界角度を正確に測定できる車両安定性試験装置に
関する。[Detailed Description of the Invention] The present invention relates to a vehicle stability testing device that can accurately measure the stability of a vehicle, particularly the critical angle for rollover.
車両の安定性試験は従来車両を傾斜台上に載置
し、この傾斜台を徐々に傾け車両の片側の全車輪
が傾斜台上から離れたときの傾斜角度を、傾斜台
に設けた傾き角度計にて読み取り、この角度を上
記臨界角度としている。ところがトレーラ等のよ
うに車両長が長い場合や何両かの車両が連結され
ている場合には、車両の片側の全車輪が同時に傾
斜台上から離れる瞬間の傾斜角度を人為的に読み
取ることはきわめて困難である。 Conventionally, vehicle stability tests are carried out by placing the vehicle on a ramp, gradually tilting the ramp, and measuring the tilt angle at which all wheels on one side of the vehicle are off the ramp. This angle is taken as the above-mentioned critical angle. However, when the vehicle length is long, such as a trailer, or when several vehicles are connected, it is impossible to artificially read the tilt angle at the moment when all wheels on one side of the vehicle leave the ramp at the same time. It is extremely difficult.
そこでかかる問題点を解決した車両安定性試験
装置が本出願人の先の出願(特願昭57ー166342号
ー特開昭59ー56144号公報ー)において提案され
ている。この装置は、傾斜角度が可変な傾斜台上
に被試験車両を載置し、先端に圧力検知器を設け
た突き出し長さ可変の支持部を車両側面と対向さ
せて車両の長さ方向に沿つて複数個配設した構成
を有する。傾斜台の傾斜角度が大きくなり、車両
側面が1つの支持部に突き当り圧力検知器から検
知出力を生じたとき当該圧力検知器の支持部の突
き出し長さを所定長だけ短かくなるように制御
し、複数個の支持部の圧力検知器全ての出力が生
じたときの傾斜台の傾斜角度を電気的に又は機械
的に読み取るものである。 Therefore, a vehicle stability testing device that solves this problem has been proposed in the applicant's previous application (Japanese Patent Application No. 166342/1983 - Japanese Patent Application Laid-open No. 56144/1983). In this device, the vehicle under test is placed on a ramp with a variable tilt angle, and a supporting section with a variable protruding length equipped with a pressure sensor at the tip is placed facing the side of the vehicle and runs along the length of the vehicle. It has a configuration in which a plurality of them are arranged. When the inclination angle of the ramp becomes large and the side of the vehicle hits one of the supports and a detection output is generated from the pressure sensor, the protruding length of the support of the pressure sensor is controlled so as to be shortened by a predetermined length. , the inclination angle of the tilting table is read electrically or mechanically when the outputs of all the pressure sensors of the plurality of support parts are generated.
ところで正確な安定性の試験のためには車両の
側面と支持部との対向距離は車両の全側面が支持
部に当接するまでは常に一定に保つておくことが
必要である。上記装置においては車両側面の当接
による押圧力を支持部の圧力検知器が検知した
後、一定距離だけ当該支持部の突き出し長さを短
かくしている。つまり個々の支持部の突き出し長
は不連続な変化をするため、全ての支持部に車両
側面が当接するまでに要する時間は長くならざる
を得ず、迅速な試験は困難になるという問題点が
ある。 Incidentally, for accurate stability testing, it is necessary to keep the opposing distance between the side of the vehicle and the support part constant until all the sides of the vehicle come into contact with the support part. In the above device, after the pressure detector of the support portion detects the pressing force due to contact with the side surface of the vehicle, the protrusion length of the support portion is shortened by a certain distance. In other words, since the protruding length of each support part changes discontinuously, the time required for the side of the vehicle to come into contact with all of the support parts is inevitably long, making it difficult to conduct a quick test. be.
本考案は上述の如き車両安定性試験装置におけ
る支持部と車両側面との対向間隔を常時一定距離
になるように支持部の突出長さを連続的に制御可
能とする車両試験装置を提供しようとするもの
で、その特徴とするところは傾き角度が可変な傾
斜台上に被試験車両が載置され、前記車両側面と
の対向距離が可変で圧力検知器を有するとともに
前記車両との対向側に漏洩穴を設けた圧力ガスの
流通路を有する支持部が前記車両の長さ方向に沿
つて複数個配設され各支持部に、前記流通路の出
口から漏洩するガスの背圧を検知する圧力計と該
圧力計の検知圧力と予め定めた基準圧力との差に
応じて前記対向距離を一定にする制御信号を発生
する制御部と該制御信号に応じて前記支持部を進
退する制御部とを設けるとともに、前記複数個の
支持部の全ての圧力検知器の出力側にANDゲー
トの入力側を接続したことにある。 The present invention aims to provide a vehicle stability testing device as described above, in which the protruding length of the supporting portion can be continuously controlled so that the facing distance between the supporting portion and the side surface of the vehicle is always a constant distance. The vehicle under test is placed on a ramp with a variable inclination angle, and the distance from the side of the vehicle facing the vehicle is variable. A plurality of support parts each having a pressure gas flow passage with a leak hole are arranged along the length of the vehicle, and each support part is provided with pressure for detecting the back pressure of the gas leaking from the outlet of the flow passage. a control unit that generates a control signal that makes the opposing distance constant according to the difference between the pressure detected by the pressure gauge and a predetermined reference pressure; and a control unit that advances or retreats the support portion in response to the control signal. is provided, and the input side of the AND gate is connected to the output side of all the pressure detectors of the plurality of support parts.
以下本考案の1実施例について第1図と第2図
を参照しながら説明する。本考案になる車両試験
装置の主要部の構成を第1図に示す。支持部1の
硬板101と102内に密封空間部104が設け
られ、硬板101には、ラバー等の緩衝板103
が設けられ、これらの厚さ方向には複数個の穴1
07が密封空間部104に連通して形成されてい
る。又、密封空間部104には一方側の供給口1
05から流出口106に向つて圧力ガス即ちエア
ーが供給される。支持部1はユニバーサルジヨイ
ント3を介して連結されたロツド5の伸縮によつ
て突出長さが調整される。ロツド5は制御部11
からの制御信号に応じて駆動される油圧シリンダ
ー等の駆動部6により水平方向に移動され、又支
え板4はロツド5に固定され、支持部1の移動と
共に移動する。硬板102には支え板4とガイド
9とを貫挿している水平棒8aと8bの一端が連
結されている。 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 shows the configuration of the main parts of the vehicle testing device according to the present invention. A sealed space 104 is provided in the hard plates 101 and 102 of the support part 1, and the hard plate 101 is provided with a buffer plate 103 made of rubber or the like.
are provided, and a plurality of holes 1 are provided in the thickness direction of these holes.
07 is formed to communicate with the sealed space 104. In addition, the sealed space 104 has a supply port 1 on one side.
Pressure gas, that is, air, is supplied from 05 toward the outlet 106. The protruding length of the support portion 1 is adjusted by the expansion and contraction of a rod 5 connected via a universal joint 3. The rod 5 is the control section 11
The support plate 4 is moved in the horizontal direction by a drive unit 6 such as a hydraulic cylinder driven in response to a control signal from the support plate 4, and the support plate 4 is fixed to a rod 5 and moves with the movement of the support unit 1. One ends of horizontal rods 8a and 8b, which pass through the support plate 4 and the guide 9, are connected to the hard plate 102.
車両の側面15aと支持部1は間隔lだけ離
れ、支持部1の密封空間部104の入口105か
ら流入するエアーは1部が硬板101とクツシヨ
ン103に設けた穴107から漏洩し、残りが圧
力計2に流入する。間隔lが長くなるにつれて穴
107からの漏洩量が増加し圧力計2で測定され
る圧力は低下する。一方距離lが小さくなると穴
107と対向する車両の側面15aが穴107を
通るエアーの漏洩を妨げるため測定圧力は高くな
る。これはいわゆるエアーマイクロメーターの原
理である。したがつて必要な対向間隔lを予め定
めておき、そのとき得られたエアー圧を基準値と
して制御部11に設定しておき車両の安定性試験
の際に圧力計で得られた圧力が基準値よりも高く
なれば制御部11からは制御信号が駆動部6に送
出されて両圧力の差に相当する長さだけロツド5
を縮ませ、支持部1の突出長さを短かくする。逆
にエアー圧力が基準値よりも小さいときには、支
持部1を突出させる。このように、流出口106
からのエアー圧力を圧力計2にて常時監視し、そ
の測定圧力値に応じて支持板の突出長さを変化さ
せれば常に一定の対向間隔が保持される。更にこ
の制御は測定圧力に応じて連続的に行なわれるの
で迅速且つ正確な制御が可能となる。第1図にお
いて、7aと7bは支持部1に車両側面15aが
衝突したときの衝撃力を弱めるためのスプリング
を示す。又、10aと10bはガイド9の位置決
めのための垂直棒であり、以上のような制御部を
複数個一方向に配設するときにこれらを一定の位
置関係に置くためのものである。 The side surface 15a of the vehicle and the support part 1 are separated by a distance l, and part of the air flowing in from the inlet 105 of the sealed space 104 of the support part 1 leaks from the hole 107 provided in the hard plate 101 and the cushion 103, and the rest leaks. It flows into the pressure gauge 2. As the distance 1 becomes longer, the amount of leakage from the hole 107 increases, and the pressure measured by the pressure gauge 2 decreases. On the other hand, when the distance 1 becomes smaller, the side surface 15a of the vehicle facing the hole 107 prevents air from leaking through the hole 107, so that the measured pressure becomes higher. This is the principle of what is called an air micrometer. Therefore, the required facing distance l is determined in advance, and the air pressure obtained at that time is set in the control unit 11 as a reference value, and the pressure obtained by the pressure gauge during the vehicle stability test is used as the reference value. If the pressure becomes higher than the pressure, a control signal is sent from the control section 11 to the drive section 6, and the rod 5 is moved by a length corresponding to the difference between the two pressures.
to shorten the protruding length of the support part 1. Conversely, when the air pressure is lower than the reference value, the support portion 1 is made to protrude. In this way, the outlet 106
If the air pressure from the support plate is constantly monitored by the pressure gauge 2 and the protruding length of the support plate is changed in accordance with the measured pressure value, a constant facing distance can be maintained at all times. Furthermore, since this control is performed continuously according to the measured pressure, quick and accurate control is possible. In FIG. 1, 7a and 7b indicate springs for weakening the impact force when the vehicle side surface 15a collides with the support portion 1. Further, 10a and 10b are vertical rods for positioning the guide 9, and are used to maintain a constant positional relationship when a plurality of control units as described above are arranged in one direction.
第2図は全長の長いトレーラ等の試験をする例
についての上面概略図である。同期連動する2台
の傾斜台14,14の上には車両15が載置され
る。車両15の長さ方向に沿つて4個の支持部1
a〜1dが設置され、これら支持部は傾斜台1
4,14の傾斜面に連動して両者のなす角度が常
に略直角になるように角度制御されるように受け
板等に組み込まれている。各支持部1a〜1dの
それぞれに対応して圧力検知器12a〜12d、
ロツド5a〜5d、油圧シリンダー等の駆動部6
a〜6d、圧力計2a〜2d、制御部11a〜1
1dが設けられている。 FIG. 2 is a schematic top view of an example in which a long trailer or the like is tested. A vehicle 15 is placed on two inclined tables 14, 14 which are synchronously interlocked. Four supports 1 are provided along the length of the vehicle 15.
a to 1d are installed, and these supporting parts are connected to the inclined table 1.
It is incorporated into a receiving plate or the like so that the angle is controlled in conjunction with the inclined surfaces 4 and 14 so that the angle between the two is always approximately a right angle. Pressure detectors 12a to 12d corresponding to each of the support parts 1a to 1d,
Drive unit 6 such as rods 5a to 5d and hydraulic cylinders
a to 6d, pressure gauges 2a to 2d, control units 11a to 1
1d is provided.
傾斜台14,14の傾斜角度を増大せしめてい
くと、或る角度に至つた時、車両15の片側の車
輪16a〜16dのうち一部の車輪、例えば車輪
16aのみが傾斜台14から浮き上つて反対側車
体側面15aが支持部1aに近づく。このとき、
他の車輪16b〜16dは未だに浮き上つていな
いから、対応する支持部1b〜1dと車体側面間
の間隔はそのままである。したがつて圧力計2a
で測定されたエアー圧力は基準値よりも大きくな
りその圧力差が制御部1aに入力されてロツド5
aの長さを短かくするように駆動部6aが制御さ
れる。その後更に傾斜台14,14の傾斜角が増
すと、他の車輪が浮き上がり上記と同様制御が為
され結局、全車輪16a〜16dが同時に浮き上
がつたときのみ全ての圧力検知器12a〜12d
から出力がANDゲート13に達し、その出力が
生じたときの傾斜台14,14の傾斜角度を種々
の機械的電気的手段により得る。 As the inclination angle of the ramps 14, 14 is increased, when a certain angle is reached, only some of the wheels 16a to 16d on one side of the vehicle 15, for example, the wheel 16a, lifts off the ramp 14. Then, the opposite side surface 15a of the vehicle body approaches the support portion 1a. At this time,
Since the other wheels 16b to 16d have not yet been lifted up, the distance between the corresponding support portions 1b to 1d and the vehicle body side remains unchanged. Therefore, the pressure gauge 2a
The air pressure measured at is greater than the reference value, and the pressure difference is input to the control unit 1a, and the air pressure is
The drive unit 6a is controlled to shorten the length of a. After that, when the inclination angle of the ramps 14, 14 further increases, the other wheels lift up and the same control as above is performed, and in the end, only when all the wheels 16a to 16d lift up at the same time do all the pressure sensors 12a to 12d
The output reaches the AND gate 13, and the tilt angle of the ramps 14, 14 at which the output occurs is obtained by various mechanical and electrical means.
上記の説明において、圧力計2におけるガス検
知からロツド5の伸縮による支持部の制御までに
要する時間が車両の横転時間と同程度かそれより
短かいと、全ての支持部に車両側面が同時に接触
することは生じ得なくなるが、通常ガス即ちエア
ーの流速と油圧系による駆動部の応答速度等を考
慮すると、上記時間は車両の横転速度と比較して
長いから、このような恐れは生じない。 In the above explanation, if the time required from the gas detection by the pressure gauge 2 to the control of the support parts by expansion and contraction of the rod 5 is about the same as or shorter than the vehicle rollover time, the side of the vehicle will come into contact with all the support parts at the same time. However, considering the flow rate of gas, that is, air, and the response speed of the drive unit by the hydraulic system, the above-mentioned time is long compared to the rollover speed of the vehicle, so such a fear does not occur.
第3図及び第4図は他の実施例を示し、この実
施例においては各支持部1において支持体14の
両側にそれぞれ2個の計4個の駆動部6…6とこ
れらにそれぞれ対応する密封空間部104…10
4とこれらにそれぞれ連通する穴107…107
と制御部11…11とを具備し、それぞれの駆動
部6について制御ループを形成し、前記実施例と
同様の作用により第3図及び第4図示のa,b,
c,dの距離が等しくなるように制御して車輌1
5の側面15aをより安全に受けるようにした。 FIGS. 3 and 4 show another embodiment, in which in each support part 1 there are four drive parts 6...6, two on each side of the support body 14, and corresponding thereto, respectively. Sealed space section 104...10
4 and holes 107...107 that communicate with these, respectively.
and control sections 11...11, forming a control loop for each drive section 6, and by the same operation as in the previous embodiment, a, b, shown in FIGS. 3 and 4,
Vehicle 1 is controlled so that the distances c and d are equal.
The side surface 15a of 5 can be received more safely.
このように、本考案による車両安定性試験装置
では、支持部内に密封空間部を設け、この支持部
の車両側面との対向側に密封空間部と連通する穴
を所定個数設け、この密封空間の一側から圧力ガ
スを供給し、他側から流出するガスの圧力を測定
することにより、支持板と車両側面との対向距離
を判断し、その圧力の大小によつて支持板を移動
させるという簡単な構成により、支持板と車両側
面との対向距離を連続的に常に一定値に保持でき
るので車両の安定性試験が迅速に且つ正確に行な
えるという効果がある。 As described above, in the vehicle stability test device according to the present invention, a sealed space is provided in the support part, a predetermined number of holes communicating with the sealed space are provided on the side of the support part opposite to the side surface of the vehicle, and the sealed space is By supplying pressure gas from one side and measuring the pressure of the gas flowing out from the other side, the opposing distance between the support plate and the side of the vehicle can be determined, and the support plate can be moved depending on the magnitude of the pressure. With this configuration, the facing distance between the support plate and the side surface of the vehicle can be continuously maintained at a constant value, so that a stability test of the vehicle can be carried out quickly and accurately.
第1図は本考案になる装置の1例の主要構成を
示す一部断面側面図、第2図は本考案の一実施例
を示す装置の概略図、第3図は他の例の主要構成
の一部を示す一部断面平面図、第4図はその一部
断面平面図である。
1……支持部、2……圧力計、6……駆動部、
11……制御部、12……圧力検知器、13……
ANDゲート、14,14……傾斜台、15……
車両、15a……側面、104……密封空間部、
107……穴。
Fig. 1 is a partially sectional side view showing the main structure of one example of the device of the present invention, Fig. 2 is a schematic diagram of the device showing one embodiment of the invention, and Fig. 3 is the main structure of another example. FIG. 4 is a partially sectional plan view showing a part of the structure. 1... Support part, 2... Pressure gauge, 6... Drive part,
11...Control unit, 12...Pressure detector, 13...
AND gate, 14,14...slope, 15...
Vehicle, 15a... side, 104... sealed space,
107...hole.
Claims (1)
され、前記車両側面との対向距離が可変で、圧力
検知器を有するとともに前記車両との対向側に漏
洩穴を設けた圧力ガスの流通路を有する支持部が
前記車両の長さ方向に沿つて複数個配設され、各
支持部に、前記流通路の出口から漏洩するガスの
背圧を検知する圧力計と該圧力計の検知圧力と予
め定めた基準圧力との差に応じて前記対向距離を
一定にする制御信号を発生する制御部と該制御信
号に応じて前記支持部を進退する制御部とを設け
るとともに、前記複数個の支持部の全ての圧力検
知器の出力側にANDゲートの入力側を接続した
ことを特徴とする車両の安全性試験装置。 The vehicle under test is placed on a ramp whose tilt angle is variable, the distance from which it faces the side of the vehicle is variable, it has a pressure detector, and a leak hole is provided on the side facing the vehicle for pressure gas flow. A plurality of support parts each having a passageway are disposed along the length direction of the vehicle, and each support part is provided with a pressure gauge for detecting back pressure of gas leaking from the outlet of the flow passageway, and a pressure gauge detected by the pressure gauge. and a control section that generates a control signal that makes the opposing distance constant according to the difference between the pressure and a predetermined reference pressure, and a control section that advances or retreats the support section in accordance with the control signal, and A vehicle safety testing device characterized in that the input side of an AND gate is connected to the output side of all pressure detectors in the support section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52983U JPS59106041U (en) | 1983-01-07 | 1983-01-07 | Vehicle stability test equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52983U JPS59106041U (en) | 1983-01-07 | 1983-01-07 | Vehicle stability test equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59106041U JPS59106041U (en) | 1984-07-17 |
JPH0216279Y2 true JPH0216279Y2 (en) | 1990-05-02 |
Family
ID=30132279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52983U Granted JPS59106041U (en) | 1983-01-07 | 1983-01-07 | Vehicle stability test equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59106041U (en) |
-
1983
- 1983-01-07 JP JP52983U patent/JPS59106041U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59106041U (en) | 1984-07-17 |
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