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Dive into the research topics where Notker Amann is active.

Publication


Featured researches published by Notker Amann.


IEEE-ASME Transactions on Mechatronics | 2004

Active damping of drive train oscillations for an electrically driven vehicle

Notker Amann; Joachim Bocker; Franz Prenner

A problem encountered with electrically driven vehicles are resonances in the drive train caused by elasticity and gear play. Disadvantageous effects caused by this are noticeable vibrations and high mechanical stresses due to torque oscillations. The oscillations can be damped using a control structure consisting of a nonlinear observer to estimate the torque in the gear and a controller, which computes a damping torque signal that is added to the drivers demand. The control algorithm was implemented in the existing motor control unit without any additional hardware cost. The controller was successfully tested in a test vehicle. The resonances can essentially be eliminated. The controller copes satisfactorily with the backlash problem.


IFAC Proceedings Volumes | 2004

Active Suppression of Torsional Oscillations

Joachim Bocker; Notker Amann; Bernd Schulz

Abstract A problem with electrically driven vehicles is resonances in the drive train caused by elasticity and gear play. Disadvantageous effects caused by this are noticeable vibrations and high mechanical stresses due to torque oscillations. The oscillations can be damped using a control structure consisting of a nonlinear observer to estimate the torque in the gear and a controller, which computes a damping torque signal that is added to the drivers demand. The control algorithm was implemented in the existing motor control unit without any additional hardware cost. The controller was successfully tested in a test vehicle. The resonances can essentially be eliminated. The controller copes satisfactorily with the backlash problem.


Archive | 2007

METHOD FOR CONTROLLING A MOTOR VEHICLE DRIVE TRAIN

Stefan Wallner; Notker Amann


Archive | 2007

Transmission train for a hybrid vehicle, with an internal combustion motor and an electromotor, gives an accelerated synchronizing of the target gear on a gear change

Notker Amann; Stefan Wallner


Archive | 2007

Gear change control method for automatic gearbox unit, involves aligning target gear unilaterally with large speed gradient at beginning and with small speed gradients to coupling at end of synchronization

Notker Amann; Stefan Wallner


Archive | 2008

METHOD FOR CHARGING A BATTERY OF A HYBRID VEHICLE AT REST

Stefan Wallner; Notker Amann


Archive | 2007

Synchronizing automated gearbox with matching to input revolution rate involves controlling additional electrical machine, optionally main drive motor, so input revolution rate to be adjusted with drive gear engaged has desired time profile

Notker Amann; Stefan Wallner


Archive | 2007

Battery utilizing and service life monitoring method for electric machine of hybrid vehicle, involves charging battery within charge limits, where charge limits are computed and determined based on charging condition and usage of battery

Notker Amann; Mesut Er; Stefan Wallner


Archive | 2005

Controlling or regulating method for electro-dynamic starter element or drive system while starting vehicle, involves starting of vehicle by electric motor whereby control or regulation is torque based

Notker Amann; Stefan Wallner


Archive | 2008

Method for the wear-free braking of a vehicle with an electrodynamic drive system

Stefan Wallner; Notker Amann

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