Abstract
The hysteresis compensation model of the piezoelectric multilayer actuator has been established by Matlab/Simulink. The parameters of the hysteresis characteristics based on the Maxwell stick-slip model have been obtained by the static experiment of the piezoelectric multilayer actuator without loading. The model was used for the controlling of the high-pressure piezoelectric injector. The experimental results showed that the hysteresis of the piezoelectric multilayer actuator has been suppressed, and the rising rate and the downing rate of the inject oil have been reduced through the open-loop feedforward control by using the established hysteresis compensation model, in that it is beneficial to reducing the combustion noise and lowering the effect of the "water-hammer" phenomena on the injection quantity fluctuation.
| Original language | English |
|---|---|
| Pages (from-to) | 218-221+227 |
| Journal | Yadian Yu Shengguang/Piezoelectrics and Acoustooptics |
| Volume | 33 |
| Issue number | 2 |
| Publication status | Published - Apr 2011 |
Keywords
- Direct-acting piezoelectric injector
- Maxwell stick-slip model
- Nonlinear hysteresis
- Piezoelectric multilayer actuator