AT11041U3 - METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES - Google Patents

METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES Download PDF

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Publication number
AT11041U3
AT11041U3 AT0069509U AT6952009U AT11041U3 AT 11041 U3 AT11041 U3 AT 11041U3 AT 0069509 U AT0069509 U AT 0069509U AT 6952009 U AT6952009 U AT 6952009U AT 11041 U3 AT11041 U3 AT 11041U3
Authority
AT
Austria
Prior art keywords
polynomials
load unit
vehicles
control parameters
measured values
Prior art date
Application number
AT0069509U
Other languages
German (de)
Other versions
AT11041U2 (en
Inventor
Siegfried Reich
Frank Jedicke
Original Assignee
Avl Zoellner Gmbh
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 Avl Zoellner Gmbh filed Critical Avl Zoellner Gmbh
Priority to AT0069509U priority Critical patent/AT11041U3/en
Publication of AT11041U2 publication Critical patent/AT11041U2/en
Publication of AT11041U3 publication Critical patent/AT11041U3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
    • G01M17/0074—Details, e.g. roller construction, vehicle restraining devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Verfahren zum Parametrieren eines Rollenprüfstandes für Fahrzeuge, auf welchem der Fahrzeugreifen mittels einer Belastungseinheit und einer Rolle mit einem Rollwiderstand beaufschlagt und zumindest der geschwindigkeitsabhängige Fahrwiderstand über die Belastungseinheit simuliert wird, umfasst die Ermittlung einer beschränkten Anzahl an Messwerten eines Auslaufversuches mit einem realen Fahrzeug auf einer realen Fahrbahn und Ableitung der Regelparameter für die Belastungseinheit aus diesen Messwerten. Um dabei die Simulation von Fahrwiderstandskurven mit erhöhter Genauigkeit und ohne Unstetigkeitsstellen in ihrem Verlauf zu gestatten, wird der Bereich um jeden Messwert durch jeweils ein Polynom dritter oder höherer ungerader Ordnung angenähert, wobei die Koeffizienten aller Polynome derart bestimmt werden, dass die Polynome stetig ineinander übergehen, und wobei die Regelparameter für die Belastungseinheit derart berechnet werden, dass das über die Belastungseinheit vorgegebene Bremsmoment durch diese Polynome gegeben ist.Method for parameterizing a chassis dynamometer for vehicles, on which the vehicle tire is loaded with a rolling resistance by means of a loading unit and a roller and at least the speed-dependent driving resistance is simulated via the loading unit, comprises the determination of a limited number of measured values of a test run with a real vehicle on a real Lane and derivation of the control parameters for the load unit from these measured values. In order to allow the simulation of driving resistance curves with increased accuracy and without points of discontinuity in their course, the range around each measured value is approximated by a polynomial of third or higher odd order, wherein the coefficients of all polynomials are determined such that the polynomials continuously merge into each other , and wherein the control parameters for the load unit are calculated in such a way that the braking torque predetermined via the load unit is given by these polynomials.

AT0069509U 2009-11-05 2009-11-05 METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES AT11041U3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0069509U AT11041U3 (en) 2009-11-05 2009-11-05 METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0069509U AT11041U3 (en) 2009-11-05 2009-11-05 METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES

Publications (2)

Publication Number Publication Date
AT11041U2 AT11041U2 (en) 2010-03-15
AT11041U3 true AT11041U3 (en) 2010-09-15

Family

ID=41480417

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0069509U AT11041U3 (en) 2009-11-05 2009-11-05 METHOD FOR PARAMETRIZING A VEHICLE TEST ROLL FOR VEHICLES

Country Status (1)

Country Link
AT (1) AT11041U3 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040220755A1 (en) * 2003-03-03 2004-11-04 Siemens Aktiengesellschaft Method for operating a roller test bench and roller test bench

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040220755A1 (en) * 2003-03-03 2004-11-04 Siemens Aktiengesellschaft Method for operating a roller test bench and roller test bench

Also Published As

Publication number Publication date
AT11041U2 (en) 2010-03-15

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