会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明公开
    • INTRA-CYLINDER PRESSURE SENSOR FAULT DIAGNOSTIC DEVICE AND INTRA-CYLINDER SENSOR SENSITIVITY CORRECTION DEVICE PROVIDED WITH SAME
    • 设备技术故障的气缸内压传感器的检测并且该装置内置设备进行校正灵敏度缸内压力传感器的
    • EP2778379A1
    • 2014-09-17
    • EP11875589.1
    • 2011-11-11
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • SASAKI, KeisukeURANO, Shigeyuki
    • F02D45/00
    • G01L23/00F02D35/023F02D37/02F02D41/009F02D41/222F02D41/2474F02D2041/227F02P5/00Y02T10/40
    • The invention has an object to provide an intra-cylinder pressure sensor fault diagnostic device that ensures an opportunity for fault diagnosis in a wide operation region, and can accurately detect an intra-cylinder pressure with a high S/N ratio. The fault diagnostic device for an intra-cylinder pressure sensor (16), which outputs a value corresponding to an intra-cylinder pressure of an internal combustion engine delays ignition timing so that firing timing comes after a compression top dead center to generate peaks of the intra-cylinder pressure before firing and after firing respectively (S 100). When the ignition timing is delayed, at least one of an output value of the intra-cylinder pressure sensor in the peak of the intra-cylinder pressure before firing (hereinafter, called a pre-firing output peak value) and a crank angle thereof is detected (S110). A fault of the intra-cylinder pressure sensor (16) is determined by using at least one of the pre-firing output peak value and the crank angle thereof (S 140).
    • 本发明具有故障反对在宽工作区域,以提供帧内缸内压力传感器的故障诊断装置那样确保机会的用于诊断,并且可以准确地设置成检测具有高S / N比气缸内的压力。 在气缸内压力传感器故障诊断装置(16),其输出值在内燃机的气缸内的压力对应于延迟点火正时,以便做烧制定时到来的压缩上止点,以产生的峰值后 烧成前和烧成分别后气缸内压力(S 100)。 当点火正时被延迟烧成前在气缸内压力的峰值缸内压力传感器的输出值的,至少一个(在后称为预烧制输出峰值),并且它们的曲轴转角 检测(S110)。 缸内压力传感器(16)的故障是确定性的,通过使用所述预烧制输出峰值中的至少一个和它们的曲柄角开采(S 140)。