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Adaptive PID Controller for Idle Mode of an SI Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 13, 2006 by SAE International in United States
Annotation ability available
The indices in idle-speed control for SI engine are smoothness and low emission. To maintain the crankshaft speed within a given range in the presence of load changes, ECU (Engine Control Unit) needs to detect speed change and adjust the quantity of combustible mixture as quickly as possible. At the same time, emission should be controlled by air-fuel ratio controller. Because the intake step motor has dynamic positional error, the intake air volume can't be controlled accurately. Map-based injection, oxygen feedback and adaptive PID controller are combined to form a quick and low-cost air-fuel ratio control system, by which a low steady Idle-speed of 650rpm(±20rpm) is realized on a 3-cylinder gasoline engine.
CitationFeng, K., Yuhua, Z., Xiaoguang, X., and Xigeng, S., "Adaptive PID Controller for Idle Mode of an SI Engine," SAE Technical Paper 2006-32-0010, 2006, https://doi.org/10.4271/2006-32-0010.
- Bielaoyc P. Euro III/Euro IVEmissions -A Study of Cold Warm Up Phase a SI (Spark Ignition) Engine [C] SAE 1999-01-1073
- Horie k. Emission Reduction During Warm-Up Period by Incorporating a Wall-Wetting Fuel Model on the Fuel Injection Strategy During Engine Starting[C] SAE 952478 1995
- Kishi N. Development of the High Performance L4 Engine ULEV System[C] SAE 980415 1998