TY - CHAP

T1 - Nonlinear modelling and sliding mode control of a piezo-hydraulic valve system

AU - Haus, Benedikt

AU - Aschemann, Harald

AU - Mercorelli, Paolo

AU - Werner, Nils

N1 - Conference code: 21

PY - 2016/9/22

Y1 - 2016/9/22

N2 - Camless internal combustion engines offer significant improvements over classical ones with cam-driven valves: a better torque performance, an increased fuel economy as well as reduced emissions and pumping losses. The paper presents a nonlinear model for a hydraulic engine valve, which is regulated by an innovative piezo-hydraulic valve spool described by a linear model. Based on these models, a nonlinear control design is proposed using a combination of feedforward and feedback control. For the positioning of the valve spool, a decoupling feedforward control is employed, whereas a sliding mode control guarantees an accurate tracking of desired trajectories for the engine valve position. Simulation results are provided to point out the performance and the effectiveness of the proposed control strategy.

AB - Camless internal combustion engines offer significant improvements over classical ones with cam-driven valves: a better torque performance, an increased fuel economy as well as reduced emissions and pumping losses. The paper presents a nonlinear model for a hydraulic engine valve, which is regulated by an innovative piezo-hydraulic valve spool described by a linear model. Based on these models, a nonlinear control design is proposed using a combination of feedforward and feedback control. For the positioning of the valve spool, a decoupling feedforward control is employed, whereas a sliding mode control guarantees an accurate tracking of desired trajectories for the engine valve position. Simulation results are provided to point out the performance and the effectiveness of the proposed control strategy.

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84991758921&partnerID=8YFLogxK

U2 - 10.1109/MMAR.2016.7575176

DO - 10.1109/MMAR.2016.7575176

M3 - Article in conference proceedings

AN - SCOPUS:84991758921

SP - 442

EP - 447

BT - 2016 21st International Conference on Methods and Models in Automation and Robotics (MMAR)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 21st International Conference on Methods and Models in Automation and Robotics (MMAR)

Y2 - 29 August 2016 through 1 September 2016

ER -