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公开(公告)号:US5109825A
公开(公告)日:1992-05-05
申请号:US671878
申请日:1991-04-15
CPC分类号: F02D41/1448 , F02P11/06 , G01M15/106 , G01M15/11
摘要: An arrangement for recognizing misfires in an internal combustion engine has a sensor (15) for measuring the exhaust-gas pressure and a means (16, 17, 18) for recording the measurement values of the sensor for each clock pulse. Each exhaust-gas pressure measurement value is compared to a corresponding expected value and an occurrence signal is emitted when the two values differ from one another by more than a specified difference. A means (21) for recognizing and treating faults determines the rate of occurrence of the occurrence signals and emits a fault signal when the rate of occurrence determined exceeds a threshold value. A warning lamp lights up on receipt of the fault signal.This arrangement for recognizing misfires has a simple construction because the ignition in all the cylinders of an internal combustion engine (11) can be simultaneously monitored by means of a single sensor. In addition, it is possible to determine faults in the exhaust-gas line (12) as well as misfires.
摘要翻译: PCT No.PCT / DE89 / 00628 Sec。 371日期:1991年4月15日 102(e)日期1991年4月15日PCT提交1989年10月4日PCT公布。 出版物WO90 / 04093 日本1990年4月19日。用于识别内燃机中的失火的装置具有用于测量废气压力的传感器(15)和用于记录每个传感器的传感器的测量值的装置(16,17,18) 时钟脉冲。 每个废气压力测量值与相应的期望值进行比较,并且当两个值彼此不同于指定的差异时发出发生信号。 用于识别和处理故障的装置(21)确定发生信号的发生率,并且当发生速率超过阈值时发出故障信号。 收到故障信号后,警告灯亮起。 用于识别失火的这种布置具有简单的结构,因为可以通过单个传感器同时监测内燃机(11)的所有气缸中的点火。 此外,可以确定废气管线(12)中的故障以及失火。