A servo piezo mechanical hydraulic actuator and its control for camless internal combustion engines
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A servo piezo mechanical hydraulic actuator and its control for camless internal combustion engines. / Mercorelli, Paolo; Werner, Nils.
In: International Journal of Modelling, Identification and Control, Vol. 25, No. 3, 2016, p. 227-238.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - A servo piezo mechanical hydraulic actuator and its control for camless internal combustion engines
AU - Mercorelli, Paolo
AU - Werner, Nils
PY - 2016
Y1 - 2016
N2 - In this paper a modelling of a hybrid actuator is proposed. The hybrid actuator consists of a piezo mechanical structure and a hydraulic ratio displacement. In particular, this hydraulic ratio displacement is modelled through a liquid spring model. The idea of this contribution is using the advantages of both: the high precision of the piezo and the force of the hydraulic part. Piezoelectric actuators (PEAs) are mostly used for precise positioning, despite their nonlinearities, such as saturations, hysteresis and creep. In control problems these kinds of nonlinearities must be taken into consideration. Particular attention is paid to a possible control strategy to track a periodic signal. Simulations and measured results are carried out for the suitability of the control approach.
AB - In this paper a modelling of a hybrid actuator is proposed. The hybrid actuator consists of a piezo mechanical structure and a hydraulic ratio displacement. In particular, this hydraulic ratio displacement is modelled through a liquid spring model. The idea of this contribution is using the advantages of both: the high precision of the piezo and the force of the hydraulic part. Piezoelectric actuators (PEAs) are mostly used for precise positioning, despite their nonlinearities, such as saturations, hysteresis and creep. In control problems these kinds of nonlinearities must be taken into consideration. Particular attention is paid to a possible control strategy to track a periodic signal. Simulations and measured results are carried out for the suitability of the control approach.
KW - PID controllers
KW - Piezo actuator modelling
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84964792515&partnerID=8YFLogxK
U2 - 10.1504/IJMIC.2016.075812
DO - 10.1504/IJMIC.2016.075812
M3 - Journal articles
AN - SCOPUS:84964792515
VL - 25
SP - 227
EP - 238
JO - International Journal of Modelling, Identification and Control
JF - International Journal of Modelling, Identification and Control
SN - 1746-6172
IS - 3
ER -