Performance of Electronically Controlled Automotive Engine Cooling System Using PID and LQR Control Techniques
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 3
Abstract
The cooling system of internal combustion engine plays a major role in a vehicle performance. In the present work, a proposed electronic controller for the cooling system is introduced and modelled mathematically to control the engine coolant temperature using a controllable electric water pump and radiator fan. Proportional Integral Derivative (PID) and Linear Quadratic Regulation (LQR) control techniques are considered to design the cooling system controller both the coolant flow rate and radiator fan speed are used to control the engine coolant temperature. The Worldwide Harmonized Light Vehicles Test Cycle (WLTC) is used to test the proposed controller based on mathematical simulation using MATLAB/SIMULINK software. The generated numerical results are presented inthetime domain and compared withtheconventional cooling system. The results showed that the proposed controller enhanced the engine coolant temperature either during warmup or steady-state operation over that oftheconventional cooling system.
Authors and Affiliations
Mostafa Mohamed, M. H. Shedid, M. S. El-Demerdash, M. Fatouh
Keywords
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