Avl List Gmbh

Stephen Jones

Martin Schmidt

Helmut Kokal

Dirk Denger

Gerhard Griessnig

Theodor Sams

Josef Mayrhofer

Matthias Dank

Emre Kural

Mihai Nica

Dirk Geyer

Cheng Caizhen

Christian Miedl

Thomas Rosenberger

Jürgen Braun

Kural Emre

Johannes Schauer

Franz Zieher

Rolf Albrecht

The invention relates to a method the assessing the controllability of a vehicle by a driver in a risky or problematic situation. In order to carry out assessment of the controllability of a vehicle early, the following steps are provided: a. modelling the drive train and the movement dynamics of the vehicle, b. modelling situation conditions and environmental conditions, c. selecting a risky or problematic situation, d. selecting a driver capability type, e. modelling the driver's reaction as a function of the selected driver capability type. f. simulating the dynamic vehicle behaviour in the longitudinal and transverse directions of a planned trajectory on the basis of the drive train model and movement dynamics model for the predefined situation and environmental conditions when the selected risky or problematic situation occurs, g. calculating the maximum lateral and longitudinal deviation from the planned trajectory between the occurrence of the risky or problematic situation and the regaining of complete control by the driver, h. evaluating the controllability of the vehicle by the driver in the risky or problematic situation on the basis of the maximum lateral and/or longitudinal deviation.

Method for assessing the controllability of a vehicle

A test stand arrangement includes at least one electric motor () connected to a test specimen for driving and/or loading the test specimen, and a control arrangement for the or each electric motor. In order to be able to create the connection of the drive train and vehicle simulation with the real, vehicle-specific combustion and dynamic behavior of the engine, at least one model for a multi-mass flywheel is implemented in the control arrangement, from which model at least a part of the control requirement for the or each electric motor is calculated and which model contains at least the two masses of the primary and secondary side of the multi-mass flywheel and a substitute model for the or each bow spring, and an algorithm is implemented in the control arrangement that analyzes the model for a multi-mass flywheel by means of an integrated time step method.

Test stand arrangement with simulation model of multi-mass flywheel

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Graz, Austria

Stephen Jones