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    • 77. 发明公开
    • GLOW PLUG DRIVE CONTROL METHOD AND GLOW PLUG DRIVE CONTROL APPARATUS
    • 安格利克公司GLUHKERZEN UND ANTRIEBSSTEUERVORRICHTUNGFÜRGLÜHKERZEN
    • EP2653714A1
    • 2013-10-23
    • EP11848691.9
    • 2011-12-06
    • Bosch Corporation
    • HUJISHIRO YoshitoTANAKA YutakaNAKAMURA Tomohiro
    • F02P19/02F23Q7/00
    • F02P23/00F02D2041/2027F02P19/02F02P19/022F02P19/023F02P19/026F23Q7/001
    • To suppress current fluctuations upon commencement of driving and prolong lifespan by reducing electric stress caused by current fluctuations.
      A glow plug 1, a glow switch 2, and a stabilizing coil 3 are series-connected, and upon commencement of the driving of the glow plug 1, a repetition frequency of PWM signals that control the opening and closing of the glow switch 2 is made into a higher frequency than a repetition frequency in a normal drive state and the opening and closing of the glow switch 2 is controlled (S104), and when a predetermined drive shift condition has been met (S106), the repetition frequency of the PWM signals is returned to the frequency during normal driving and the opening and closing of the glow switch 2 is controlled (S108), whereby the current upon commencement of driving is smoothed and the occurrence of an instantaneous large current is suppressed.
    • 为了抑制驱动开始时的电流波动,通过减小由电流波动引起的电应力来延长寿命。 电热塞1,辉光开关2和稳定线圈3是串联的,并且在电热塞1的驱动开始时,控制辉光开关2的打开和关闭的PWM信号的重复频率是 在正常驱动状态下被制成比重复频率高的频率,并且控制辉光开关2的打开和关闭(S104),并且当满足预定的驱动移动条件(S106)时,PWM的重复频率 信号在正常驱动期间返回到频率,并且控制辉光开关2的打开和关闭(S108),从而驱动开始时的电流平滑,并且抑制瞬时大电流的发生。