针对电火工品实际工程应用中如何保证其可靠作用的问题，提出一种基于Simulink 仿真软件的点火电流 计算方法。分析电火工品点火原理，综合考虑高温环境下点火电路电缆阻值变化、接插件接触电阻等影响因素，通 过仿真计算复杂点火电路点火电流，并进行试验验证。结果表明：该算法能提高火工品工作可靠性，节省研制成本， 为工程设计领域提供一种可行的方法。
Aiming at the problem of how to ensure the reliability of electric explosive device (EED) in practical engineering application, a calculation method of ignition current based on Simulink simulation software is proposed. The ignition principle of EED was analyzed, and the influence factors such as the resistance change of ignition circuit cable and the contact resistance of connectors in high temperature environment were comprehensively considered. The ignition current of complex ignition circuit was calculated by simulation and verified by experiments. The results show that the algorithm improves the reliability of initiating explosive device, saves the development cost, and provides a feasible method for the engineering design field.