Modeling and simulation of engine speed on idle speed conditions system by using MIMO on spark ignition engine

Abstract

Multi-Input Multi-Output (MIMO) system formed without compensator and prefilter is a modeling of Spark Ignition Engine (SIE). This system in the form of engine stand that is gasoline fuel, motor speed or engine speed is strongly influenced by throttle valve, spark advanced position and load changes in SIE. The MIMO system model connects engine speed and manifold pressure to two system inputs, namely Duty Cycle of the throttle valve D(s) and spark advanced position A(s). The operation of the SIE is divided into three conditions: engine speed for idle speed without load conditions, engine speed for idle speed low load conditions and engine speed for idle speed conditions with gear-1 loading. This process is reviewed for each of the three MIMO SIE system conditions by inputting random data from the duty cycle of the throttle valve D(s) and spark advanced position A(s). Response of engine speed N(s) and manifold pressure P(s) are obtained by using Matlab simulation for input D(s) = 120 to 260 and for A(s) = 0.2 rad up to 0.5 rad. The simulated results show the response graph of the P(s) manifold pressure for the SIE MIMO system is always changing.Multi-Input Multi-Output (MIMO) system formed without compensator and prefilter is a modeling of Spark Ignition Engine (SIE). This system in the form of engine stand that is gasoline fuel, motor speed or engine speed is strongly influenced by throttle valve, spark advanced position and load changes in SIE. The MIMO system model connects engine speed and manifold pressure to two system inputs, namely Duty Cycle of the throttle valve D(s) and spark advanced position A(s). The operation of the SIE is divided into three conditions: engine speed for idle speed without load conditions, engine speed for idle speed low load conditions and engine speed for idle speed conditions with gear-1 loading. This process is reviewed for each of the three MIMO SIE system conditions by inputting random data from the duty cycle of the throttle valve D(s) and spark advanced position A(s). Response of engine speed N(s) and manifold pressure P(s) are obtained by using Matlab simulation for input D(s) = 120 to 260 and for A(s) = 0...