二沖程活塞發(fā)動機點火系統(tǒng)的設計與仿真
霍曉康
（中國人民解放軍陸軍裝甲兵學院，北京 100144）
摘 要：針對傳統(tǒng)點火系統(tǒng)進行優(yōu)化設計，提出一種高能高速活塞發(fā)動機用點火系統(tǒng)，尤其適用于二沖程高速汽油活塞機。該設計利用變頻反激變換升壓電路提升點火線圈充電電壓，并在點火線圈中反向嵌入永磁體增加點火能量，最后將提高點火線圈功率開關的鉗位電壓提高至800 V，提升了火花塞的擊穿等級，理論計算和仿真結果表明，所提出的設計思路可以有效提升點火系統(tǒng)的點火能量和點火頻率。
關鍵詞：變頻反激變換；點火系統(tǒng)；磁通反向偏置；高頻點火；Simulink 仿真
中圖分類號：V233.3 文獻標識碼：A 文章編號：1007-3175(2018)05-0018-05
Design and Simulation of a Spark Ignition System for Two Stroke Piston Engine
HUO Xiao-kang
（PLA Engineering Institute, Beijing 100144, China）
Abstract: Aiming at the optimization design of a traditional ignition system, this paper proposed a kind of high energy spark ignition system for high speed piston engine, especially suitable for direct-injected gasoline two stroke engines. The boosted variable-frequency flyback converter was used to promote the ignition coil charging voltage and a piece of permanent magnet was embedded into the ignition coil to increase the ignition energy. With the clamp voltage across IGBTs promoted to 800 V, the spark plug break-down voltage was improved. Theoretical calculation and simulation results show that the proposed design thought can promote the ignition energy and frequency of the
ignition system.
Key words: variable-frequency fly-back converting; ignition system; flux back bias; high-frequency ignition; Simulink simulation
參考文獻
[1] MIYASHITA N,MATSUBARA Y,IWATA K, et al.Spark Plugs for Gasoline DirectInjection Engines[C]//Sae World Congress，2001：303-312.
[2] FRENCH M J.Spark Ignition System for Directinjected Gasoline Two Stroke Engine[C]//Sae World Congress，2012：61-68.
[3] 邱建平，林玲，何樂年. 反激式開關電源控制芯片中的高精度原邊反饋技術[J]. 電路與系統(tǒng)學報，2013，18(1)：403-407.
[4] SOKAL N O,REDL R.Control Algorithms and Circuit Designs for Optimal Flyback-Charging of an Energy-Storage Capacitor (e. g. , for Flash Lamp or Defibrillator)[J].IEEE Transactions on Power Electronics，1997，12(5)：885-894.
[5] 張奇，徐國強，杜發(fā)榮. 小型航空活塞發(fā)動機點火系統(tǒng)優(yōu)化設計[J]. 航空動力學報，2012，27(2)：343-349.
