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Electrical circuit, particularly an electronic power circuit for motor vehicle injection systems, with a function for the detection and diagnosis of faults, and the related method

机译:具有故障检测和诊断功能的电路,特别是用于机动车辆喷射系统的电子电源电路以及相关方法

摘要

During the piloting of the load, the current intensity and the voltage present in the load are monitored by the comparison of their values with a current threshold and with a window of permissible voltage values. When the voltage is outside the window of permissible values and/or the current falls below its threshold, a fault message is generated and the nature of the fault (open load, short circuit to earth, short circuit to the supply voltage) is also identified by the emission of a corresponding signal of a diagnostic nature. The identification of the faulty stage or stages is also provided for in the case of a circuit including several stages in parallel.
机译:在控制负载期间,通过将负载中存在的电流强度和电压值与电流阈值和允许的电压值窗口进行比较,可以监视负载中的电流强度和电压。当电压超出允许值的窗口和/或电流降至其阈值以下时,将生成故障消息,并确定故障的性质(空载,对地短路,对电源电压短路)通过发射具有诊断性质的相应信号。在电路包括并联的多个级的情况下,也提供了对一个或多个故障级的识别。

著录项

  • 公开/公告号US5173832A

    专利类型

  • 公开/公告日1992-12-22

    原文格式PDF

  • 申请/专利权人 MARELLI AUTRONICA SPA;

    申请/专利号US19890372967

  • 发明设计人 VALERIO GIORGETTA;GUIDO GHISIO;

    申请日1989-06-29

  • 分类号H02H3/20;

  • 国家 US

  • 入库时间 2022-08-22 04:59:00

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