Система управления зажиганием для двигателей внутреннего сгорания SECU-3L (Lite)

Abstract

The article dials with research and development of microcontroller based ignition control system for internal combustion engine. The aim of this work is to develop versatile system with flexible monitoring, tuning and diagnostics capabilities, with support of different synchronization options, sensors and actuators. The task is solved by designing a microcontroller based electronic device, developing embedded software for it and software for monitoring, tuning and diagnostics. Device also includes embedded manifold air pressure sensor and two ignition coil drivers. Signals from crankshaft position, manifold air pressure and throttle position sensors along with board voltage come in to the input of system. By means of mentioned data, system carries out calculations and controls ignition timing, producing control actions for ignition coils. Board voltage is used to control ignition coil’s change time (dwell).