MA50052B1 - Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles. - Google Patents

Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles.

Info

Publication number
MA50052B1
MA50052B1 MA50052A MA50052A MA50052B1 MA 50052 B1 MA50052 B1 MA 50052B1 MA 50052 A MA50052 A MA 50052A MA 50052 A MA50052 A MA 50052A MA 50052 B1 MA50052 B1 MA 50052B1
Authority
MA
Morocco
Prior art keywords
roller
wheel
test bench
speed
overall weight
Prior art date
Application number
MA50052A
Other languages
French (fr)
Other versions
MA50052A1 (en
Inventor
Lhoussaine Oubrich
Mohammed Ouassaid
Mohammed Maaroufi
Original Assignee
Lhoussaine Oubrich
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 Lhoussaine Oubrich filed Critical Lhoussaine Oubrich
Priority to MA50052A priority Critical patent/MA50052B1/en
Priority to PCT/MA2021/000010 priority patent/WO2021251810A1/en
Publication of MA50052A1 publication Critical patent/MA50052A1/en
Publication of MA50052B1 publication Critical patent/MA50052B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/01—Testing or calibrating of weighing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L’invention concerne un banc d’essai dédié à la vérification des fonctionnalités des systèmes de pesage dynamique en marche à haute vitesse. Ce banc d’essai permet de procéder à l’opération de mesure de la charge statique de l’essieu ainsi que le poids global de véhicules de transport, et ce dans une situation très proche à la mesure qui s’effectue dans les conditions normales de la circulation routière, caractérisées par une chaussée et un trafic réels. Le banc d’essai est constitué du galet (g) dont la partie faciale (contour) représente la structure de la chaussée et dans laquelle les capteurs piézoélectriques sont enfouis. Ce galet qui tourne autour de son axe est entrainé par le moteur électrique asynchrone (m) au moyen de la chaine (c) de transmission de puissance. La vitesse de rotation du moteur est variable, pilotée par le variateur de vitesse (vv). Une roue (r) montée sur un système de suspension est placée sur la voie de circulation (contour du galet) à l’aide d’un système de fixation et de guidage. Sur la tige de fixation des amortisseurs, un boulon (b) est soudé sur lequel des masses établons (m) calibrées, reconnues vraies, peuvent être rajoutées en fonctions du poids voulu. L’ensemble constitué de la roue couplée du système de suspension, du système de fixation et des masses étalons disposent d’un seul degré de liberté selon l’axe z (axe verticale). La vitesse linéaire de la roue est fixée selon la vitesse de rotation du moteur électrique. En raison des facteurs causaux liés à la vitesse de la roue, au profile du revêtement et au système de suspension, le mouvement de la roue permet de générer des forces instantanées qui sont appliquées sur la chaussée, et par conséquent sur les capteurs piézoélectriques. Grace à une carte électronique, logée au sein du galet, permet d’acquérir les signaux électriques produits par les capteurs piézoélectriques et les transmettre, via des ondes radio, à une autre carte électronique, situé à l’extérieur du galet, de traitement et de calcul de la charge statique de l’essieu et du poids global de véhicules.The invention relates to a test bench dedicated to verifying the functionality of high-speed in-motion weighing systems. This test bench makes it possible to carry out the operation of measuring the static load of the axle as well as the overall weight of transport vehicles, and this in a situation very close to the measurement which is carried out under normal conditions. road traffic, characterized by real roadway and traffic. The test bench consists of the roller (g) whose facial part (outline) represents the structure of the roadway and in which the piezoelectric sensors are buried. This roller, which rotates around its axis, is driven by the asynchronous electric motor (m) by means of the power transmission chain (c). The motor rotation speed is variable, controlled by the variable speed drive (vv). A wheel (r) mounted on a suspension system is placed on the traffic lane (outline of the roller) using a fixing and guiding system. On the shock absorber mounting rod, a bolt (b) is welded onto which calibrated weights (m), recognized as true, can be added according to the desired weight. The assembly consisting of the wheel coupled with the suspension system, the mounting system and the standard masses have a single degree of freedom along the z axis (vertical axis). The linear speed of the wheel is fixed according to the rotational speed of the electric motor. Due to the causal factors related to the speed of the wheel, the profile of the surface and the suspension system, the movement of the wheel makes it possible to generate instantaneous forces which are applied to the road surface, and consequently to the piezoelectric sensors. Thanks to an electronic card, housed within the roller, makes it possible to acquire the electrical signals produced by the piezoelectric sensors and to transmit them, via radio waves, to another electronic card, located outside the roller, for processing and calculation of the static axle load and the overall weight of vehicles.

MA50052A 2020-06-12 2020-06-12 Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles. MA50052B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA50052A MA50052B1 (en) 2020-06-12 2020-06-12 Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles.
PCT/MA2021/000010 WO2021251810A1 (en) 2020-06-12 2021-06-11 Test bench relating to a dynamic weighing system which operates at high speed and which is designed for measuring the static load of the axles and the total weight of vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA50052A MA50052B1 (en) 2020-06-12 2020-06-12 Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles.

Publications (2)

Publication Number Publication Date
MA50052A1 MA50052A1 (en) 2021-12-31
MA50052B1 true MA50052B1 (en) 2022-03-31

Family

ID=76943066

Family Applications (1)

Application Number Title Priority Date Filing Date
MA50052A MA50052B1 (en) 2020-06-12 2020-06-12 Test bench relating to the dynamic weighing-in-motion system at high speed intended for the measurement of the static load of the axles and the overall weight of vehicles.

Country Status (2)

Country Link
MA (1) MA50052B1 (en)
WO (1) WO2021251810A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1404673A (en) * 1972-08-03 1975-09-03 Gnii Mashinovedeniya Method of determing the frictional and mechanical properties of materials and apparatus for putting the method into practise
DE19505533A1 (en) * 1995-02-18 1996-08-22 Teves Gmbh Alfred Test unit with improved simulation quality for realistic testing of the driving dynamics of motor vehicles
EP3376184A3 (en) * 2017-02-28 2018-12-05 Kistler Holding AG Apparatus and method for calibrating a weigh-in-motion sensor

Also Published As

Publication number Publication date
WO2021251810A1 (en) 2021-12-16
MA50052A1 (en) 2021-12-31

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