Method and device for controlling a test stand arrangement
AssigneeAVL List GmbH
InventorHelmut KOKAL
Life of this patent
Estimating the term…
Abstract
The invention relates to a device and to a method for controlling a test stand arrangement having a specimen and having a loading machine, which is connected to the specimen by a connecting shaft. An estimated value (TE,est) for for the internal torque (TE) of the specimen is determined and, from the estimated value (TE,est), while taking into account a natural frequency (f0) and a delay, a damping signal (TDamp) is determined and fed back into the control loop.
Claims15
A method for controlling a test stand arrangement including a test specimen and a loading machine which is connected to the test specimen by a connecting shaft the test stand arrangement corresponding to a supercritical arrangement, the method including the following steps:
- determining an estimated value (TE,est) for an internal torque (TE) of the test specimen;
- determining a damping signal (TDamp) from the estimated value (TE,est) while taking into account a natural frequency (f0) of the test stand arrangement that is to be damped and a delay;
- and
- feeding the damping signal back into a control loop for controlling the test stand arrangement.
The method according to claim, characterized in that the delay is a constant parameter.
A device for controlling a test stand arrangement, the device comprising:
- a test specimen;
- a loading machine which is connected to the test specimen by a connecting shaft;
- the test stand arrangement (4) corresponding to a supercritical arrangement,
- a damping unit including
- an estimating unit configured and arranged to establish an estimated value (TE,est) for the internal torque (TE) of the test specimen, and
- a filter configured and arranged to establish a damping signal (TDamp) from the estimated value (TE,est) on the basis of a natural frequency (f0) of the test stand arrangement that is to be damped and a delay and feeding said damping signal back into a control loop of the test stand arrangement.
(canceled)
Dependencies are inferred from the claim text.