Avl List Gmbh

Rüdiger Teichmann

Martin Rzehorska

Klaus-Christoph Harms

Klaus Leitmeier

Josef Moik

Norbert Mayrhofer

Jakob Moder

Klaus Kutschi

Roland Wanker

Jerome Gruaz

Christian Strasser

Gernot Fernitz

Wilhelm Gutschi

Pirmin Proier

Hinrich Mohr

Christoph Pfister

Francesco Duchi

Martin Abart

The invention relates to a method and system for calibrating a control device, in particular an inverter control device, of an electric motor, comprising: operating the electric motor as part of a force flow; performing a force measurement by means of piezo elements which are arranged in the force flow in such a way that the force flow is applied, in particular exclusively, to the piezo elements; and adapting a control characteristic the control device on the basis of at least one force component derived from the force measurement, in particular a change in the at least one force component and/or at least one torque component derived from the force measurement, in particular a change in the torque component.

Method and system for calibrating a control device of an electric motor

The invention relates to a method for monitoring at least one exhaust gas turbocharger (ATL) of a large internal combustion engine (BKM), comprising at least one compressor () and one exhaust gas turbine () arranged on the same shaft as the compressor, wherein the current pressures (p, p) upstream and downstream of the compressor () and the current temperatures (T, T) upstream of the compressor () and upstream of the exhaust gas turbine () are measured. In order to monitor an exhaust gas turbocharger effectively and as simply as possible, the current pressures (p, p) upstream and downstream of the exhaust gas turbine (), the current temperatures (T, T) downstream of the compressor () and downstream of the exhaust gas turbine (), and the rotational speed (n) of the exhaust gas turbine () are measured, preferably continuously, the efficiencies (&#x3b7;) of the compressor () and of the exhaust gas turbine () are calculated from the measured data, and a diagnostic algorithm is started when a worsening of the efficiency (&#x3b7;, &#x3b7;) of the compressor () and/or of the exhaust gas turbine () is detected or after a defined time interval has elapsed.

Method for monitoring at least one exhaust gas turbocharger

A method for testing a vehicle or a sub-system thereof on a test stand or in a road trial, wherein the method provides force and torque transmitting interfaces which are at least partially present in reality. To be able to further increase the flexibility of test runs or test drives, at least one further sub-system or one component which is not present in reality is reproduced independently of the interfaces via a simulation program which is supplied with real, actual measured values and/or signals of the real part, wherein the output signals of the simulation model are fed to a control device of the real part for further processing.

Method for testing a vehicle or a sub-system thereof

In order to make error recognition, for example, in cabling, in the stored data or in the data allocation, in the allocation of a sensor unit to sensor-relevant data for calibration of an analysis unit that is connected with a sensor unit possible, a sensor identification () is located in or on the sensor unit that can be polled by the analysis unit () and to which sensor-specific data are allocated in a storage unit (), and a data carrier () is located in or on the sensor unit in which a second set of sensor-specific data are stored that can be read by the analysis unit () and can be compared with the first set of sensor-specific data of storage unit (). Upon agreement of the first and second set of sensor-specific data, the measuring signals are transformed into measurement data by considering the sensor-specific data.

Test assembly and procedure for capturing performance data

To reduce the complexity of an indicating systemon an internal combustion engine for determining a parameter, the invention provides that on the basis of the measured variable a computing unitfor the indicating systemcomputes crank angle information, and on the basis of the crank angle information thus computed and the measured variable determines an engine parameter.

Indicating system and method for determining an engine parameter

The life of a sensor unit is very strongly dependent on the loading of the sensor unit during use. The life of a sensor unit is generally specified in a number of loading cycles, however, which does not take into consideration the loading of the sensor unit. The invention therefore specifies a method and apparatus for assessing the residual life of a sensor unit which takes into consideration the actual loading of the sensor unit and therefore the residual life of the sensor unit can be estimated more precisely by virtue of a damage factor (S) being determined for the loading of a loading cycle (B) and the loading cycle (B) being weighted therewith.

Method and apparatus for assessing the residual life of a sensor unit

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Hart b. Graz, Austria

Rüdiger Teichmann