Virtual design and development of compact fast-acting fuel injector solenoid actuator

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Virtual design and development of compact fast-acting fuel injector solenoid actuator

Subic, Aleksandar / Cvetkovic, Dean

The presented research focused on the modelling and simulation of fast acting fuel injector solenoids. The main objective of the presented design approach was to improve the operational performance of existing fuel injector solenoids by reducing their size and response time, while increasing the attraction force required for effective actuation performance. Using the developed approach, the initial size of a typical automotive fuel injector has been reduced by 35%, the attraction force increased by 26% and the response time reduced by 76%. The modelling and simulation procedures have been successful in reducing the response time that is typically difficult and tedious to achieve through experimentation or tiral-an-error. In this research, the minimum response time was achieved by using the virtual solenoid rebound delay model. The simplicity and effectiveness of the developed methods allow for quick and accurate design and evaluation. The developed modelling and simulation approaches have greatly improved the operational performance of the fuel injector solenoid as confirmed through correlation of computational results.