Analysis of artificial signals of cps, spark timing, and fuel injection timing toward the engine behaviour
Loading...
Date
2018-05
Authors
Muhammad Nabil Asyraf Jafri
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Internal combustion (IC) engine is widely used in automotive. The mainstream
engine that can be found in any automotive is spark ignition (SI) engine with four stroke
cycle. The growth of electronic device in engine system is increased throughout the
time. Mechanical system inside the engine system slowly being replaced by the
electronic system. Engine control unit (ECU) is a device that being used to control all
the engine parameters whether it for is spark, fuel, speed, and other applications. ECU
plays a vital role on how the engine performs. Engine knock is the major concern in the
engine system. This phenomenon occurs due to an incomplete combustion inside the
combustion chamber. Engine knock is a defect that may lead to less efficiency of the
engine performance and damage to the engine components. This defect can be
controlled by altering the spark timing or adjusting the fuel injection timing. This
research is carried out with the aims to analyse the artificial signals of CPS and spark
toward the engine behaviour and to study the fuel injection timing toward the knocking
phenomenon. A test bed for the Modenas GT128 engine is fabricated and it is mounted
onto the go-kart chassis. By using the microcontroller, a programmable code is used to
generate the artificial signals and the signals will be analysed. The results show that the
artificial signal is capable to alter the engine behaviour. Engine knock is possible to
occur at idling speed and also at high speed operating condition.