Simulation and Optimization of Dual-Coil Discharge Ignition System

Abstract:

In order to improve discharge characteristics of engine ignition, a dual-coil ignition was designed. Simulation models of ignition energy, secondary voltage and spark duration of this ignition were established. The influence of discharge time interval and energy distribution method on discharge characteristics of the dual-coil ignition was studied. Compared with single-coil ignition, the results show that dual-coil ignition produced higher secondary voltage, ignition energy and extended spark duration. When total ignition energy remains constant, the dual-coil coupled discharge mode can improve energy conversion efficiency. The ignition can achieve flexible switching of discharge modes and optimal control of discharge characteristics，which is beneficial for improving fuel economy and reducing exhaust emissions.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 1073-1078
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.1073
• Online since: January 2013
• Authors: Xiao Bin Wang, Li Ping Yang, Xiu Zhen Ma, Hai Guo Jing, Shuai Huang
• Keywords: Coupled Discharge, Dual-Coil Ignition, Optimization, Simulation

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