Volume 30 Issue 12
Dec.  2015
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CHEN Lin-lin, SUN Qun, WANG Chong. Fuel injection control strategies based on LPV state-space model for small two-stroke aviation kerosene engine[J]. Journal of Aerospace Power, 2015, 30(12): 3065-3072. doi: 10.13224/j.cnki.jasp.2015.12.033
Citation: CHEN Lin-lin, SUN Qun, WANG Chong. Fuel injection control strategies based on LPV state-space model for small two-stroke aviation kerosene engine[J]. Journal of Aerospace Power, 2015, 30(12): 3065-3072. doi: 10.13224/j.cnki.jasp.2015.12.033

Fuel injection control strategies based on LPV state-space model for small two-stroke aviation kerosene engine

doi: 10.13224/j.cnki.jasp.2015.12.033
  • Received Date: 2014-11-06
  • Publish Date: 2015-12-28
  • To simplify the calculation of fuel injection control model based on the average model, a linear parameter varying (LPV) injection control state-space model was established based on the average model according to LPV state-space model principles. On this basis, the fuel injection pulse width control model under steady operating conditions and transient operating conditions was established, then simulated by Matlab/Simulink tool, and finally verified in an engine test bed. The simulation and test results show that:(1) the LPV state-space fuel injection control model meets the control requirements under steady and transient operating conditions. Although the accuracy of calculated fuel injection pulse width is slightly lower than that of the average model, the LPV state-space model calculation is simple, and can be directly used in the injection control algorithm design and easy to implement in engineering. (2) Compared with the interpolation algorithm, the control strategy based on the LPV state-space model leads to a lower engine power output, mainly owing to the simplified model that results in a reduced intake air flow rate.

     

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