A new controller for throttle and spark advance to control the engine speed at idle under unknown time varying disturbances is proposed in this paper. By using measurements of the engine speed the disturbance estimator is designed to reconstruct a disturbance torque. The controller is formulated so that the throttle is used as much as possible as a main tool to produce a torque and spark advance is used to compensate intake to torque production delay. The stability of the system is proved via Lyapunov function method. [S0022-0434(00)01304-6]
Variable Structure Control of Engine Idle Speed With Estimation of Unmeasurable Disturbances
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division February 9, 2000. Associate Technical Editors: E. Misawa and V. Utkin.
Stotsky, A., Egardt, B., and Eriksson, S. (February 9, 2000). "Variable Structure Control of Engine Idle Speed With Estimation of Unmeasurable Disturbances ." ASME. J. Dyn. Sys., Meas., Control. December 2000; 122(4): 599–603. https://doi.org/10.1115/1.1318242
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