تصميم وحدة تحكم لنظام التعليق في نموذج ربع المركبة باستخدام نظام الاستدلال العصبي الضبابي المتكيف الموسع
Abstract
تعتبر أنظمة التعليق من أهم المكونات في المركبات الحديثة كما أنها تعد أهم عوامل الراحة والأمان فيها لذلك كان لابد من تأمين متحكم يضمن التفاعل الكامل بين مكونات نظام التعليق ويساعد في اتخاذ القرارات الدقيقة في الوقت المناسب, يقترح البحث تصميم متحكم باستخدام نظام الاستدلال العصبي الضبابي المكيف الموسع ((EANFIS واستخدامه كوحدة اتخاذ قرار في نظام التعليق لنموذج ربع المركبة بغاية المحافظة على ثبات المركبة على الطرقات لتأمين راحة الركاب حيث يقوم بتحقيق دقة في اتخاذ القرار للمساهمة في تخفيض الاهتزازات وامتصاص الصدمات الناتجة عن عدم استواء الطريق وبالتالي يمنع وصولها إلى مقصورة القيادة ويؤمن الثبات والتماسك المطلوب تم تطبيق المتحكم على نموذج ربع المركبة ودراسة استجابة النموذج في حال حدوث اضطرابات مختلفة ومقارنة أداء المتحكم مع متحكم يعتمد على نظام الاستدلال الضبابي ومع استجابة النموذج الرياضي ذو الحلقة المفتوحة بوجود اضطرابات دخل مختلفة وقد أظهر المتحكم تفوقاً في الأداء من حيث تخفيض الإزاحات وسرعة الاهتزاز وتسارعه. Suspension system is considered one of the most important components of modern automobiles as it is the responsible for the vehicle’s stability, balance and safety. The presence of robust controller is very necessary in order to ensure full interaction between suspension components and making accurate decisions at the right time. This paper proposes to design an Extended Adaptive Neuro Fuzzy Inference System (EANFIS) controller for suspension system in quarter car model. The proposed controller is used as decision maker In order to contribute in absorbing shocks caused by bumpy roads, and to prevent vibrations from reaching the cockpit. Furthermore, it provides stability and coherence required to reduce the discomfort felt by passengers, which arises from road roughness, which in turn, improve the road handling. The MATLAB Simulink is used to simulate the proposed controller with the controlled model and to display the responses of the controlled model under different types of disturbance. In addition, a comparison between EANFIS controller, Fuzzy controller and open loop model (passive suspension) was done with different types of disturbance on order to evaluate the performance of the proposed model. Controller has shown excelled performance in terms of reducing displacements, velocity and acceleration.Downloads
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