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公开(公告)号：US09032788B2
公开(公告)日：2015-05-19
申请号：US13446438
申请日：2012-04-13
CPC分类号： F02M65/003 , F02D41/221 , F02D2041/1432 , F02D2041/224
摘要： A common rail fuel system diagnostic algorithm is executed by an engine control and real time to detect and identify a faulty fuel system component. Rail pressure data is processed through a digital resonating filter having a resonance frequency corresponding to a fault signature. A peak magnitude and phase of the output from the digital resonating filter reveals a degradation level of a fuel injector, and a phase of the output identifies which fuel injector is faulted.
摘要翻译： 通过发动机控制和实时执行共轨燃料系统诊断算法来检测和识别故障燃料系统部件。 通过具有对应于故障签名的共振频率的数字谐振滤波器处理轨道压力数据。 来自数字谐振滤波器的输出的峰值幅度和相位显示燃料喷射器的劣化水平，并且输出的相位识别哪个燃料喷射器发生故障。
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公开(公告)号：US20140074382A1
公开(公告)日：2014-03-13
申请号：US13606479
申请日：2012-09-07
IPC分类号： F02D41/32
CPC分类号： F02D41/1401 , F02D41/3845 , F02D2041/1409 , F02D2041/1418 , F02D2041/142 , F02D2041/1422 , F02D2041/1432 , F02D2200/0602 , F02D2250/31 , F02M59/34 , F02M63/0265
摘要： A common rail fuel system includes a common rail supplied by an inlet metered high pressure pump and fluidly connected to a plurality of zero-leak fuel injectors. An electronic controller controls pressure in the common rail predominantly responsive to a rail pressure error when outside of an overshoot avoidance condition corresponding to the error being less than a first threshold and a time rate of change of the error being greater than a second threshold. Pressure in the common rail is controlled predominantly responsive to the time rate of change of the error during the overshoot avoidance condition.
摘要翻译： 共轨燃料系统包括由入口计量高压泵供应并且流体连接到多个零泄漏燃料喷射器的共轨。 电子控制器主要响应轨道压力误差控制公共轨道中的压力，当超出对应于误差小于第一阈值的过冲回避条件以及误差的时间变化率大于第二阈值时。 共轨中的压力主要受到过冲避免条件下误差变化时间的影响。
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公开(公告)号：US20130275026A1
公开(公告)日：2013-10-17
申请号：US13446438
申请日：2012-04-13
CPC分类号： F02M65/003 , F02D41/221 , F02D2041/1432 , F02D2041/224
摘要： A common rail fuel system diagnostic algorithm is executed by an engine control and real time to detect and identify a faulty fuel system component. Rail pressure data is processed through a digital resonating filter having a resonance frequency corresponding to a fault signature. A peak magnitude and phase of the output from the digital resonating filter reveals a degradation level of a fuel injector, and a phase of the output identifies which fuel injector is faulted.
摘要翻译： 通过发动机控制和实时执行共轨燃料系统诊断算法来检测和识别故障燃料系统部件。 通过具有对应于故障签名的共振频率的数字谐振滤波器处理轨道压力数据。 来自数字谐振滤波器的输出的峰值幅度和相位显示燃料喷射器的劣化水平，并且输出的相位识别哪个燃料喷射器发生故障。
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公开(公告)号：US09376977B2
公开(公告)日：2016-06-28
申请号：US13606479
申请日：2012-09-07
CPC分类号： F02D41/1401 , F02D41/3845 , F02D2041/1409 , F02D2041/1418 , F02D2041/142 , F02D2041/1422 , F02D2041/1432 , F02D2200/0602 , F02D2250/31 , F02M59/34 , F02M63/0265
摘要： A common rail fuel system includes a common rail supplied by an inlet metered high pressure pump and fluidly connected to a plurality of zero-leak fuel injectors. An electronic controller controls pressure in the common rail predominantly responsive to a rail pressure error when outside of an overshoot avoidance condition corresponding to the error being less than a first threshold and a time rate of change of the error being greater than a second threshold. Pressure in the common rail is controlled predominantly responsive to the time rate of change of the error during the overshoot avoidance condition.
摘要翻译： 共轨燃料系统包括由入口计量高压泵供应并且流体连接到多个零泄漏燃料喷射器的共轨。 电子控制器主要响应轨道压力误差控制公共轨道中的压力，当超出对应于误差小于第一阈值的过冲回避条件以及误差的时间变化率大于第二阈值时。 共轨中的压力主要受到过冲避免条件下误差变化时间的影响。
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