Model Based Calibration of a Multi Cylinder Spark Ignition Engine for Idle Speed Control Using PID Control Strategy

Author:

SAHU RAJESH KUMAR,Srivastava Dhananjay Kumar

Abstract

<div class="section abstract"><div class="htmlview paragraph">An idle speed controller allows the engine to idle at the lowest possible RPM without stalling to support various power-consuming accessories. In this study, an idle speed control system is designed using a PID control strategy based on an engine model. The engine model was developed considering engine dynamics and various cylinder airflow calculation methodologies, such as Speed-density, Alpha-N, and Throttle-flow. The engine model was created in MATLAB Simulink. The model utilizes several calibrated lookup tables that were obtained using the model-based calibration (MBC) technique. A multi-cylinder spark ignition (SI) engine was calibrated using the MATLAB MBC Toolbox to generate real-time maps for idle speed control. This paper aims to investigate the performance of the developed idle speed controller for different cylinder airflow calculation methodologies. The idle speed control system was simulated for various load-torque disturbances to evaluate the controller's performance. The controller responses, such as the settling time and peak speed variation, were analyzed to select a suitable airflow calculation methodology for idle speed control application. The simulated results of the designed controller are compared to the experimental results of the original controller for validation. The simulated results show that the Speed-density method has a higher peak speed variation and a longer settling time than the other two methods for all loading conditions because it considers the intake manifold dynamics. Alpha-N and Throttle-flow methods display similar performance for all tested conditions. Hence, both Alpha-N and Throttle-flow techniques can be considered for idle speed control applications.</div></div>

Publisher

SAE International

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3