Volume 29 Issue 5
May  2014
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LI Yi-hua, HU Dong-ning, HU Chun-ming, LIU Na. Real time control algorithm of aviation piston engine air-fuel ratio[J]. Journal of Aerospace Power, 2014, (5): 1234-1241.
Citation: LI Yi-hua, HU Dong-ning, HU Chun-ming, LIU Na. Real time control algorithm of aviation piston engine air-fuel ratio[J]. Journal of Aerospace Power, 2014, (5): 1234-1241.

Real time control algorithm of aviation piston engine air-fuel ratio

  • Received Date: 2014-01-03
  • Publish Date: 2014-05-28
  • Adopting the proportion-integration-differentiation neural network (PIDNN) control algorithm, the advantages of both the tradition PID and neural network were combined. It was used to control the engine air-fuel ratio under different operating conditions, and when the condition changed, it could control the air-fuel ratio to the target value. An engine model was built in software AMESim. The PIDNN control algorithm was built in software MATLAB. Through the model-in-the-loop, the simulation results show that: at different altitudes, the PIDNN could control the air-fuel ratio to the targets accurately. When the engine operating condition changes, the PIDNN could control the air-fuel ratio to the target within 0.5s and ensure the overshoot under 0.2, which results in the improvements of the engine dynamic property, fuel economy and rapid responsibility.

     

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