JPH10311752A - Vehicle weight metering device - Google Patents
Vehicle weight metering deviceInfo
- Publication number
- JPH10311752A JPH10311752A JP12193097A JP12193097A JPH10311752A JP H10311752 A JPH10311752 A JP H10311752A JP 12193097 A JP12193097 A JP 12193097A JP 12193097 A JP12193097 A JP 12193097A JP H10311752 A JPH10311752 A JP H10311752A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- load
- weight
- weighing
- model
- 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- Withdrawn
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Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高速道路や橋梁な
どにおいて走行中の車両の重量を計量する車重計量装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle weight weighing device for weighing a running vehicle on a highway or a bridge.
【０００２】[0002]
【従来の技術】道路においては、路面の損傷などを防ぐ
ために走行する車両の重量について制限を設けている。
そして、この重量制限を徹底させるためには車両の重量
を正確に計量する装置が必要となっている。2. Description of the Related Art On a road, the weight of a running vehicle is limited in order to prevent damage to the road surface.
In order to enforce the weight limitation, a device for accurately weighing the vehicle is required.
【０００３】従来は、この車重計量装置として、車両の
車輪が乗る踏み板と、この踏み板に加わった力を計測す
る荷重セルとを組み合わせた計量台によって車両の重量
を計量する装置が用いられている。Conventionally, as this vehicle weight weighing device, a device for weighing the weight of a vehicle using a weighing table in which a step plate on which a wheel of a vehicle rides and a load cell for measuring a force applied to the step plate is used. I have.
【０００４】しかし、走行中の車両は走行に伴う車両の
振動などによって車輪にかかる重量が変動するため、上
記従来の車重計量装置では走行中の車両の重量を正確に
計量することはできなかった。このため、正確な車重を
測定するためには、車両を車重計量装置上で停止させ
て、車両の走行に伴う振動などによる計測値の乱れが収
まった後の車重を計測していた。However, the weight of the running vehicle fluctuates due to the vibration of the vehicle accompanying the running and the like, so that the above-mentioned conventional vehicle weight measuring device cannot accurately measure the weight of the running vehicle. Was. For this reason, in order to accurately measure the vehicle weight, the vehicle was stopped on the vehicle weight measuring device, and the vehicle weight was measured after the disturbance of the measurement value due to vibration and the like due to the traveling of the vehicle was stopped. .
【０００５】一方、走行中の車両の重量を計量すること
ができる公知の車重計量装置としては、例えば特開平６
−１１７９０９号公報に開示されているものがある。こ
の車重計量装置は、車両が計量台の上を短時間で通過す
る場合に、計量台の荷重検出器から出力される信号から
車輪が計量台に乗った瞬間の立ち上がり部分を取り除
き、残った部分を平滑化する処理によって、走行中の車
両の重量を計量し得るようにしたものである。On the other hand, as a known vehicle weight measuring device capable of measuring the weight of a running vehicle, for example, Japanese Patent Application Laid-Open
An example is disclosed in Japanese Patent Publication No. 117909/117. This vehicle weight weighing device removes the rising portion at the moment when the wheel gets on the weighing platform from the signal output from the load detector of the weighing platform when the vehicle passes over the weighing platform in a short time, and remains. The weight of the running vehicle can be weighed by the process of smoothing the portion.
【０００６】[0006]
【発明が解決しようとする課題】上記公知例（特開平６
−１１７９０９号公報）の車重計量装置のように平滑化
処理によって走行中の車両の重量を正確に計量するため
には、少なくとも振動の３〜５周期に相当する時間にわ
たって荷重検出器の出力信号を得る必要がある。The above-mentioned known example (Japanese Unexamined Patent Application Publication No.
In order to accurately measure the weight of a running vehicle by a smoothing process as in the vehicle weight measuring device of JP-A-117909), the output signal of the load detector must be at least over a period corresponding to three to five cycles of vibration. You need to get
【０００７】ところが、本発明者等が実験を行ったとこ
ろによると、車両の走行に伴う振動には車両全体の揺れ
による長い周期の振動が含まれており、その周期は長い
ものでは３秒程度あることが分かっている。そして、こ
の長い周期の振動による影響は車両の走行速度が高い場
合には無視できないほどに大きくなる。However, according to the experiments conducted by the present inventors, the vibration accompanying the running of the vehicle includes a long-period vibration due to the vibration of the whole vehicle, and the long period is about 3 seconds. I know there is. The effect of the long-period vibration becomes so large that the traveling speed of the vehicle is not negligible.
【０００８】このため、上記公知例の車重計量装置を用
いて高速で走行する車両の重量を正確に求めるために
は、９〜１５秒程度にわたって当該車両の重量を計測す
ることが必要である。これに対して上記公知例では走行
車両の全車輪が計量台上に完全に乗っている時間は１秒
程度としており、これでは上記公知例の車重計量装置に
より、車両全体の揺れによる長い周期の振動の影響を排
除して正確な車重を計量することはできないことにな
る。また、上記公知例の方法によって高速で走行する車
両の重量を正確に計測するためには非常に大きな計量台
を用いる必要があるため、上記公知例の方法によって高
速で走行する車両の重量を計量するのは現実的ではな
い。For this reason, in order to accurately determine the weight of a vehicle running at high speed using the above-described known vehicle weight measuring device, it is necessary to measure the weight of the vehicle over about 9 to 15 seconds. . On the other hand, in the above-mentioned known example, the time during which all the wheels of the traveling vehicle are completely on the weighing platform is about 1 second. It is impossible to accurately measure the vehicle weight by eliminating the influence of the vibration of the vehicle. Also, in order to accurately measure the weight of a vehicle traveling at high speed by the method of the above-mentioned known example, it is necessary to use a very large weighing platform. It is not practical to do so.
【０００９】従って本発明は上記従来技術に鑑み、比較
的高速で走行する車両の重量も正確に計量することがで
きる車重計量装置を提供することを課題とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle weight measuring device capable of accurately measuring the weight of a vehicle traveling at a relatively high speed in view of the above-mentioned prior art.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決する本発
明の車重計量装置は、走行中の車両の重量を計量する車
重計量装置であって、通過車両が走行面に及ぼす荷重を
連続的に又は複数回計量する荷重計量手段と、この荷重
計量手段から出力される信号を時系列に沿って記憶する
記憶手段と、車両の走行に伴う荷重の動的な変化のパタ
ーンを記述するモデルと、前記記憶手段に記憶した信号
を読み出し、前記モデルに照らし合わせて情報処理を行
って車両の重量を計算する情報処理手段とを備えたこと
を特徴とする。A vehicle weight measuring device according to the present invention for solving the above-mentioned problems is a vehicle weight measuring device for measuring the weight of a running vehicle. Load weighing means for weighing a plurality of times or a plurality of times, storage means for storing a signal output from the load weighing means in a time series, and a model for describing a pattern of a dynamic change of a load accompanying the traveling of the vehicle And information processing means for reading out the signal stored in the storage means, performing information processing according to the model, and calculating the weight of the vehicle.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態に係る
車重計量装置について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle weight measuring device according to an embodiment of the present invention will be described.
【００１２】本発明の実施の形態に係る車重計量装置
は、荷重計量手段と、Ａ／Ｄ変換器と、記憶手段と、モ
デルと、情報処理手段とを備えて構成する。A vehicle weight measuring device according to an embodiment of the present invention includes a load measuring means, an A / D converter, a storage means, a model, and an information processing means.
【００１３】荷重計量手段（例えば荷重セル）では、荷
重計量手段上を通過する車両が走行面に及ぼす荷重に応
じた計測値をアナログ電気信号として出力する。このと
き、この電気信号は車両の通過に伴い、車両の振動など
によって生じる荷重の変動に応じて変動する。この電気
信号はＡ／Ｄ変換器によってデジタル電気信号に変換さ
れ、車両が荷重計量手段上を通過する間、時系列に沿っ
て記憶手段に記憶される。The load measuring means (for example, a load cell) outputs a measured value corresponding to the load exerted on the running surface by the vehicle passing on the load measuring means as an analog electric signal. At this time, the electric signal fluctuates according to the fluctuation of the load caused by the vibration of the vehicle as the vehicle passes. This electric signal is converted into a digital electric signal by the A / D converter and stored in the storage means in a time series while the vehicle passes over the load measuring means.
【００１４】モデルは車両の走行に伴う荷重の動的な変
化のパターンを記述しており、数式で次のように表され
る。The model describes a pattern of a dynamic change in load caused by the running of the vehicle, and is expressed by the following equation.
【００１５】Ｆｍ（ｔ）＝ｆ（ｔ）＋Ｗ0 Fm (t) = f (t) + W 0
【００１６】ここで、ｔは時間を示す。Ｆｍ（ｔ）はモ
デル上で車両が荷重計量手段に及ぼす全荷重であり、記
憶手段に記憶された実際の荷重値Ｆｒ（ｔ）と対応す
る。Ｗ 0 は静止時の車両の重量である。ｆ（ｔ）は車両
の振動などに伴って生じる荷重である。このｆ（ｔ）は
例えば正弦波関数によって記述され、周期や振幅などの
未知パラメータを持つ。Here, t indicates time. Fm (t) is
This is the total load that the vehicle will exert on the load weighing means on Dell.
Corresponding to the actual load value Fr (t) stored in the storage means.
You. W 0Is the weight of the vehicle at rest. f (t) is the vehicle
This is the load generated due to the vibration of This f (t) is
For example, it is described by a sine wave function,
Has unknown parameters.
【００１７】情報処理手段では、記憶手段に記憶された
荷重値Ｆｒ（ｔ）からｆ（ｔ）の未知パラメータを最小
二乗法等を用いて推定し、次式によりＦｍ（ｔ）からｆ
（ｔ）を除去して車両の静止時の重量Ｗ0 を求める。The information processing means estimates an unknown parameter of f (t) from the load value Fr (t) stored in the storage means by using a least square method or the like, and calculates Fm (t) from fm (t) by the following equation.
By removing (t), the weight W 0 of the vehicle at rest is determined.
【００１８】Ｗ0 ＝Ｆｍ（ｔ）−ｆ（ｔ）W 0 = Fm (t) -f (t)
【００１９】ここで、ｆ（ｔ）が周期関数である場合に
は、半周期から１周期の荷重値Ｆｒ（ｔ）が計測できれ
ばｆ（ｔ）を推定することができるため、比較的短時間
の計測で正確な車量Ｗ0 を求めることができる。Here, when f (t) is a periodic function, f (t) can be estimated if the load value Fr (t) can be measured from a half cycle to one cycle. it is possible to find the exact car amount W 0 in the measurement.
【００２０】従って、この車重計量装置によれば、荷重
計量手段によって計量した荷重から、誤差成分である車
両の振動などに伴って生じる荷重ｆ（ｔ）を分離して、
車重Ｗ0 を正確に求めることができ、しかも比較的短時
間の計測によって誤差成分である車両の振動などに伴っ
て生じる荷重ｆ（ｔ）の推定を行うことができるため、
高速で走行する車両の重量を計量する場合にも対応する
ことができる。Therefore, according to the vehicle weight measuring device, the load f (t) generated due to the vibration of the vehicle, which is an error component, is separated from the load measured by the load measuring means.
Since the vehicle weight W 0 can be accurately obtained, and the load f (t) generated due to the vibration of the vehicle, which is an error component, can be estimated by measurement in a relatively short time.
It is possible to cope with the case where the weight of a vehicle running at high speed is measured.
【００２１】［実施例］次に、図１及び図２を参照して
本発明の一実施例を説明する。なお、図１は本発明の実
施例に係る車重計量装置の概略構成図、図２は前記車重
計量装置における情報処理の概念図である。[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of a vehicle weight measuring device according to an embodiment of the present invention, and FIG. 2 is a conceptual diagram of information processing in the vehicle weight measuring device.
【００２２】図１において、１は高速道路等に配設され
た荷重計量手段である。この荷重計量手段１は、停車計
量型のトラックスケールと同様のものであり、車両の走
行面となる踏み板２と、この踏み板２を支持する荷重セ
ル３とを備えてなるものである。また、踏み板２の入口
と出口には、車両の通過を検出するために光電式の通過
検出センサ４，５がそれぞれ配設されている。In FIG. 1, reference numeral 1 denotes a load measuring means provided on a highway or the like. The load weighing means 1 is similar to a stop weighing type truck scale, and includes a tread plate 2 serving as a running surface of a vehicle, and a load cell 3 supporting the tread plate 2. At the entrance and exit of the tread 2, photoelectric passage detection sensors 4 and 5 are provided to detect passage of the vehicle.
【００２３】荷重セル３では、通過車両が踏み板２に及
ぼす荷重を計測しアナログ電気信号として出力する。こ
の荷重セル３の出力信号は、増幅器６によって増幅さ
れ、ローパスフィルタ７によって高周波成分が除去され
た後、Ａ／Ｄ変換器８に入力される。Ａ／Ｄ変換器８で
は、この信号（アナログ電気信号）をデジタル信号に変
換して記憶装置９に出力する。The load cell 3 measures the load exerted on the tread plate 2 by the passing vehicle and outputs it as an analog electric signal. The output signal of the load cell 3 is amplified by the amplifier 6, and after the high-frequency component is removed by the low-pass filter 7, the signal is input to the A / D converter 8. The A / D converter 8 converts this signal (analog electric signal) into a digital signal and outputs it to the storage device 9.
【００２４】記憶装置９では、入口側の通過検出センサ
４によって車両が踏み板２上に完全に乗ったと検出され
た時点から出口側の通過検出センサ５によって車両が踏
み板２から脱出し始めたと検出されるまでの間、Ａ／Ｄ
変換器８から出力されるデジタル信号を時系列に沿って
記憶する。The storage device 9 detects that the vehicle has started to escape from the tread plate 2 by the pass detection sensor 5 at the exit side from the time when the passage detection sensor 4 at the entrance side detects that the vehicle has completely got on the tread plate 2. A / D until
The digital signals output from the converter 8 are stored in chronological order.
【００２５】モデル１０は、車体の振動を正弦波関数に
よってモデル化しており、次式で表されている。The model 10 models the vibration of the vehicle body using a sine wave function and is represented by the following equation.
【００２６】Ｆｍ（ｔ）＝Ｗｓｉｎ（ωｔ＋φ）＋Ｗ0 Fm (t) = Wsin (ωt + φ) + W 0
【００２７】ここで、Ｗは車体の振動によって生じる荷
重の変動の振幅、ωはその周波数、φはその位相であ
る。Ｗ0 は車両の重量である。なお、車輪の振動などに
よる高周波の振動は先のローパスフィルタ７によって除
去されているため、モデル１０には含まれていない。Here, W is the amplitude of the load fluctuation caused by the vibration of the vehicle body, ω is its frequency, and φ is its phase. W 0 is the weight of the vehicle. Note that high-frequency vibrations due to wheel vibrations and the like are not included in the model 10 because they have been removed by the low-pass filter 7.
【００２８】情報処理装置１１では、図２に示すよう
に、記憶装置９に記憶された荷重値１２にモデル１０が
合致するように、モデル１０の未知パラメータである振
幅Ｗ、周波数ω、位相φ、車重Ｗ0 を求め、最終的に図
示１４の車重Ｗ0 を出力する。具体的には、周波数ωを
変化させながら最小二乗法で振幅Ｗ、位相φ、車重Ｗ0
を求め、最も二乗誤差が少なくなる未知パラメータの組
を求める。In the information processing apparatus 11, as shown in FIG. 2, unknown parameters of the model 10 such as the amplitude W, the frequency ω, and the phase φ are set so that the model 10 matches the load value 12 stored in the storage device 9. obtains a vehicle weight W 0, and outputs the vehicle weight W 0 of the finally shown 14. Specifically, the amplitude W, the phase φ, and the vehicle weight W 0 are changed by the least square method while changing the frequency ω.
And find a set of unknown parameters that minimizes the square error.
【００２９】従って、この車重計量装置によれば、上記
と同様に、荷重計量手段１によって計量した荷重から、
誤差成分である車両の振動などに伴って生じる荷重を分
離して、車重Ｗ0 を正確に求めることができ、しかも比
較的短時間の計測によって誤差成分である車両の振動な
どに伴って生じる荷重の推定を行うことができるため、
高速で走行する車両の重量を計量する場合にも対応する
ことができる。Therefore, according to this vehicle weight measuring device, the load measured by the load
Separating the load caused by the vibration of the vehicle is an error component, it is possible to determine the vehicle weight W 0 exactly, yet occurs with vibration of the vehicle is the error component by the relatively short measurement Since the load can be estimated,
It is possible to cope with the case where the weight of a vehicle running at high speed is measured.
【００３０】[0030]
【発明の効果】以上、発明の実施の形態と共に具体的に
説明したように、本発明の車重計量装置は、走行中の車
両の重量を計量する車重計量装置であって、通過車両が
走行面に及ぼす荷重を連続的に又は複数回計量する荷重
計量手段と、この荷重計量手段から出力される信号を時
系列に沿って記憶する記憶手段と、車両の走行に伴う荷
重の動的な変化のパターンを記述するモデルと、前記記
憶手段に記憶した信号を読み出し、前記モデルに照らし
合わせて情報処理を行って車両の重量を計算する情報処
理手段とを備えたことを特徴とする。As described above in detail together with the embodiments of the present invention, the vehicle weight measuring device of the present invention is a vehicle weight measuring device for weighing a running vehicle, wherein the passing vehicle is used. Load measuring means for continuously or plurally measuring the load exerted on the running surface, storage means for storing a signal output from the load measuring means in time series, and dynamic load of the load accompanying the traveling of the vehicle. A model describing a change pattern; and information processing means for reading a signal stored in the storage means, performing information processing in accordance with the model, and calculating a weight of the vehicle.
【００３１】従って、本発明の車重計量装置によれば、
走行車両が荷重計量手段上を通過すると、この通過車両
が走行面に及ぼす荷重を荷重計量手段により連続的に又
は複数回計量し、この荷重計量手段からの出力信号を記
憶手段により時系列に沿って記憶する。そして情報処理
手段では、この記憶した信号を記憶手段から読み出し、
モデルに照らし合わせて情報処理を行って当該車両の重
量を計算する。かくして走行中の車両の重量が計量され
る。Therefore, according to the vehicle weight measuring device of the present invention,
When the traveling vehicle passes over the load weighing means, the load exerted on the running surface by the passing vehicle is weighed continuously or plural times by the load weighing means, and the output signal from the load weighing means is chronologically stored by the storage means. To remember. Then, the information processing means reads out the stored signal from the storage means,
Information processing is performed according to the model to calculate the weight of the vehicle. Thus, the weight of the running vehicle is weighed.
【００３２】このため、荷重計量手段によって計量した
荷重から、誤差成分である車両の振動などに伴って生じ
る荷重を分離して、車重を正確に求めることができ、し
かも比較的短時間の計測によって、誤差成分である車両
の振動などに伴って生じる荷重の推定を行うことができ
るため、高速で走行する車両の重量を計量する場合にも
対応することができる。Therefore, the load caused by the vibration of the vehicle, which is an error component, can be separated from the load measured by the load measuring means, and the vehicle weight can be accurately obtained. Accordingly, it is possible to estimate the load generated due to the vibration of the vehicle, which is an error component, so that it is possible to cope with the case where the weight of a vehicle running at high speed is weighed.
【図１】本発明の実施例に係る車重計量装置の概略構成
図である。FIG. 1 is a schematic configuration diagram of a vehicle weight measuring device according to an embodiment of the present invention.
【図２】前記車重計量装置における情報処理の概念図で
ある。FIG. 2 is a conceptual diagram of information processing in the vehicle weight measuring device.
１ 荷重計量手段 ２ 踏み板 ３ 荷重セル ９ 記憶装置 １０ モデル １１ 情報処理装置 １２ 荷重値 １４ 車両の重量Ｗ0 REFERENCE SIGNS LIST 1 load measuring means 2 tread plate 3 load cell 9 storage device 10 model 11 information processing device 12 load value 14 vehicle weight W 0
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川内 直人 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社高砂研究所内 (72)発明者 日浦 亮太 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社高砂研究所内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naoto Kawauchi 2-1-1 Shinama, Arai-machi, Takasago City, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Ryota Hiura 2-1-1 Shinama, Arai-machi, Takasago City, Hyogo Prefecture No.1 Inside Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd.
Claims (1)
装置であって、 通過車両が走行面に及ぼす荷重を連続的に又は複数回計
量する荷重計量手段と、 この荷重計量手段から出力される信号を時系列に沿って
記憶する記憶手段と、 車両の走行に伴う荷重の動的な変化のパターンを記述す
るモデルと、 前記記憶手段に記憶した信号を読み出し、前記モデルに
照らし合わせて情報処理を行って車両の重量を計算する
情報処理手段とを備えたことを特徴とする車重計量装
置。1. A vehicle weight weighing device for weighing a running vehicle, comprising: a load weighing means for continuously or a plurality of times measuring a load exerted on a traveling surface by a passing vehicle; and an output from the load weighing means. Storage means for storing the signals to be performed in chronological order, a model describing a pattern of a dynamic change in load accompanying the traveling of the vehicle, and a signal stored in the storage means is read out, and compared with the model. An information processing means for performing information processing to calculate the weight of the vehicle, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12193097A JPH10311752A (en) | 1997-05-13 | 1997-05-13 | Vehicle weight metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12193097A JPH10311752A (en) | 1997-05-13 | 1997-05-13 | Vehicle weight metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10311752A true JPH10311752A (en) | 1998-11-24 |
Family
ID=14823457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12193097A Withdrawn JPH10311752A (en) | 1997-05-13 | 1997-05-13 | Vehicle weight metering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10311752A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340661A (en) * | 2001-05-18 | 2002-11-27 | Hitachi Kasado Eng Co Ltd | Instrument for measuring wheel weight of railway rolling stock |
| JP2006177722A (en) * | 2004-12-21 | 2006-07-06 | Yamato Scale Co Ltd | Apparatus for measuring vehicle weight |
| JP2008111691A (en) * | 2006-10-30 | 2008-05-15 | Kamacho Scale Co Ltd | Vehicle weight measuring apparatus |
| CN100434881C (en) * | 2006-04-24 | 2008-11-19 | 江承学 | Front dynamically-measuring protecting balance of automobile |
| CN102279038A (en) * | 2011-04-29 | 2011-12-14 | 宝鸡四维衡器有限公司 | Static motor truck scale-based apparatus for realization of dynamic weighing and realization method thereof |
| CN103162777A (en) * | 2013-03-26 | 2013-06-19 | 郑州恒科实业有限公司 | Automatic automobile following weighing processing method suitable for finished automobile weighing test equipment |
| CN109918972A (en) * | 2017-12-13 | 2019-06-21 | 北京万集科技股份有限公司 | A kind of driving weight intelligent control method and system |
-
1997
- 1997-05-13 JP JP12193097A patent/JPH10311752A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340661A (en) * | 2001-05-18 | 2002-11-27 | Hitachi Kasado Eng Co Ltd | Instrument for measuring wheel weight of railway rolling stock |
| JP2006177722A (en) * | 2004-12-21 | 2006-07-06 | Yamato Scale Co Ltd | Apparatus for measuring vehicle weight |
| CN100434881C (en) * | 2006-04-24 | 2008-11-19 | 江承学 | Front dynamically-measuring protecting balance of automobile |
| JP2008111691A (en) * | 2006-10-30 | 2008-05-15 | Kamacho Scale Co Ltd | Vehicle weight measuring apparatus |
| CN102279038A (en) * | 2011-04-29 | 2011-12-14 | 宝鸡四维衡器有限公司 | Static motor truck scale-based apparatus for realization of dynamic weighing and realization method thereof |
| CN103162777A (en) * | 2013-03-26 | 2013-06-19 | 郑州恒科实业有限公司 | Automatic automobile following weighing processing method suitable for finished automobile weighing test equipment |
| CN109918972A (en) * | 2017-12-13 | 2019-06-21 | 北京万集科技股份有限公司 | A kind of driving weight intelligent control method and system |
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Legal Events
| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20040803 |