@article{BraunReuterRudolph,
  author    = {Braun, Tristan and Reuter, Johannes and Rudolph, Joachim},
  title     = {Sensorlose Positionsregelung eines hydraulischen Proportional-Wegeventils mittels Signalinjektion},
  series = {at - Automatisierungstechnik},
  volume    = {65},
  number    = {4},
  issn      = {0178-2312},
  doi       = {10.1515/auto-2017-0003},
  pages     = {260 -- 269},
  abstract  = {Es wird eine Methode zur sensorlosen Positionsbestimmung bei elektromagnetisch bet{\"a}tigten Aktoren vorgestellt. Dabei werden basierend auf einer Signalinjektion die positionsabh{\"a}ngigen Parameter bei der injizierten Frequenz bestimmt und daraus {\"u}ber ein geeignetes Modell die Position des Magnetankers ermittelt. Die Eignung des Verfahrens zur sensorlosen Positionsregelung wird an einem bidirektionalen Proportionalventil anhand praktischer Versuche demonstriert.},
  language  = {de}
}
@inproceedings{BraunReuterRudolph,
  author    = {Braun, Tristan and Reuter, Johannes and Rudolph, Joachim},
  title     = {A novel observer approach for self sensing of single-coil digital valves},
  series = {20th World Congress of the International Federation of Automatic Control, (IFAC 2017), 9-14 July 2017, Toulouse, France (IFAC-PapersOnLine Vol. 50, Iss. 1)},
  issn      = {2405-8963},
  doi       = {10.1016/j.ifacol.2017.08.508},
  pages     = {782 -- 787},
  abstract  = {Observer-based self sensing for digital (on-off) single-coil solenoid valves is investigated. Self sensing refers to the case where merely the driving signals used to energize the actuator (voltage and coil current) are available to obtain estimates of both the position and velocity. A novel observer approach for estimating the position and velocity from the driving signals is presented, where the dynamics of the mechanical subsystem can be neglected in the model. Both the effect of eddy currents and saturation effects are taken into account in the observer model. Practical experimental results are shown and the new method is compared with a full-order sliding mode observer.},
  language  = {en}
}