Avl List Gmbh

Emre Kural

Felix Pfister

Gerhard Griessnig

Theodor Sams

Wolfgang Winkler

Camillo Signor

Andreas Fleck

Gerald Hochmann

Stephen Jones

Rolf Albrecht

Gerald Hoehmann

Dirk Geyer

Mihai Nica

Cheng Caizhen

Franz Zieher

Christian Miedl

Thomas Rosenberger

Jürgen Braun

Johannes Schauer

Various embodiments of the present disclosure are directed to a method for carrying out a test run on a test stand. The method in some embodiments reduces a deviation between a comparison simulation value and a comparison reference value when carrying out a test run on a test stand with a test object by simulating via a simulation unit a number of simulation values using a number of specified reference values starting from a selected reference value, determining a corrected reference value which is specified to the simulation unit for simulating a corrected simulation value and determining at least one setpoint variable using the corrected simulation value.

Method for performing a test run on a test stand

Various embodiments of the present disclosure are directed to test stands for generating test runs on the basis of a test drive using a vehicle along a driving route. In some embodiments, a test stand determines at least one idle operating time of an internal combustion engine and/or at least one overrun operating time of the internal combustion engine from a time curve of a vehicle speed and a time curve of a gas pedal position. The test stand may further set a specified idle control mode instead of the operating control mode during an idle operating time and/or a specified overrun control mode is set instead of the operating control mode during an overrun operating time in the test stand automation unit in order to carry out the test run.

Test stand and method for carrying out a test

Aspects of the present disclosure are directed to estimating a gearbox gear for a test run from available measured values of a test drive. In some embodiments, a chronological sequence of a vehicle speed and an engine speed may be used as measured values, a number of areas with a linear relationship between the vehicle speed and the engine speed being identified by means of a clustering algorithm from data points from related vehicle speeds and engine speeds. The clustering algorithm, in accordance with some specific embodiments, assigns the data points to the number of areas and calculates a cluster center for each area, which is interpreted as a gear. The gear linked to the cluster center of the area is assigned to the data points of an area in order to obtain a chronological sequence of gears, and used as a target value of the test run.

Test stand and method for performing a test to simulate a test drive of a vehicle

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Graz, Austria

Emre Kural