TY - GEN

T1 - Oscillation Damping With Input Shaping in Individual Metering Hydraulic Systems

AU - Rath, Gerhard

AU - Zaev, Emil

AU - Babunski, Darko

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Motion of heavy loads with hydraulic or electrical drive systems cause oscillations, which reduce the position accuracy and cause wear to the mechanical system. Input shaping of the control input signal can avoid the excitation of the resonant frequency. A common technique is to use a notch-filter that is tuned to suppress this frequency. In this work the possibility to synthesize a notch filter with an all-pass filter is used. Splitting the filter into two parts allows to control two separate inputs of a push/pull system, in the actual case a hydraulic system with individual meter-in and meter-out valves (or separate meter-in/meter-out, SMISMO). An additional design parameter allows to tune for specific property of the drive, in our case avoiding low pressure and reduce the danger of cavitation. Furthermore, it is demonstrated how to replace the all-pass filter with a simple time delay, which enables the processing on a low-cost embedded system without numeric processor. The results are demonstrated in simulation.

AB - Motion of heavy loads with hydraulic or electrical drive systems cause oscillations, which reduce the position accuracy and cause wear to the mechanical system. Input shaping of the control input signal can avoid the excitation of the resonant frequency. A common technique is to use a notch-filter that is tuned to suppress this frequency. In this work the possibility to synthesize a notch filter with an all-pass filter is used. Splitting the filter into two parts allows to control two separate inputs of a push/pull system, in the actual case a hydraulic system with individual meter-in and meter-out valves (or separate meter-in/meter-out, SMISMO). An additional design parameter allows to tune for specific property of the drive, in our case avoiding low pressure and reduce the danger of cavitation. Furthermore, it is demonstrated how to replace the all-pass filter with a simple time delay, which enables the processing on a low-cost embedded system without numeric processor. The results are demonstrated in simulation.

KW - hydraulic system

KW - individual metering

KW - input shaping

KW - notch filter

KW - oscillation damping

UR - http://www.scopus.com/inward/record.url?scp=85073891298&partnerID=8YFLogxK

U2 - 10.1109/MECO.2019.8760056

DO - 10.1109/MECO.2019.8760056

M3 - Conference contribution

T3 - 2019 8th Mediterranean Conference on Embedded Computing, MECO 2019 - Proceedings

BT - 2019 8th Mediterranean Conference on Embedded Computing, MECO 2019 - Proceedings

A2 - Stojanovic, Radovan

A2 - Jozwiak, Lech

A2 - Lutovac, Budimir

A2 - Jurisic, Drazen

PB - Institute of Electrical and Electronics Engineers

T2 - 8th Mediterranean Conference on Embedded Computing, MECO 2019

Y2 - 10 June 2019 through 14 June 2019

ER -