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公开(公告)号：US09416694B2
公开(公告)日：2016-08-16
申请号：US13619751
申请日：2012-09-14
摘要： Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.
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公开(公告)号：US09022647B2
公开(公告)日：2015-05-05
申请号：US13436646
申请日：2012-03-30
CPC分类号： F01P11/16 , F01P7/048 , F01P7/10 , F01P7/165 , F01P2003/028 , F01P2025/12 , F01P2025/13 , F01P2025/30 , F01P2025/64 , F01P2025/66 , F01P2060/04 , F01P2060/08
摘要： Methods and systems are provided for diagnosing each of a plurality of engine cooling system components including various valves and grill shutters. Each valve may be individually closed and opened for a specified duration, and corresponding changes in coolant temperature may be monitored. If all the components are functional, the various valves may be adjusted to stagnate coolant at the engine and expedite engine warm-up during a cold-start.
摘要翻译： 提供了用于诊断多个发动机冷却系统部件中的每一个的方法和系统，包括各种阀门和烤架百叶窗。 每个阀可以单独关闭并打开指定的持续时间，并且可以监视冷却剂温度的相应变化。 如果所有组件都是功能性的，则可以调节各种阀门以使发动机处的冷却剂停滞，并在冷启动期间加速发动机预热。
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公开(公告)号：US20140081549A1
公开(公告)日：2014-03-20
申请号：US13619676
申请日：2012-09-14
IPC分类号： G06F19/00
CPC分类号： F02D41/22 , F01M1/18 , F01M13/00 , F01M13/0011 , F01M13/04 , F01M2013/0038 , F01M2013/0083 , F01M2013/0088 , F01M2013/0094 , F02D41/0025 , F02D41/062 , F02M11/10 , F02M35/10157 , F02M35/10222 , F02N11/10 , Y02T10/144 , Y02T10/40
摘要： Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.
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公开(公告)号：US20130255604A1
公开(公告)日：2013-10-03
申请号：US13436632
申请日：2012-03-30
IPC分类号： F01P5/14
CPC分类号： G01M15/048 , F01P7/048 , F01P7/10 , F01P7/165 , F01P2025/12 , F01P2025/30 , F01P2060/04 , F01P2060/08 , F01P2060/12
摘要： Methods and systems are provided for diagnosing each of a plurality of engine cooling system components including various valves and grill shutters. Each valve may be individually closed and opened for a specified duration, and corresponding changes in coolant temperature may be monitored. If all the components are functional, the various valves may be adjusted to stagnate coolant at the engine and expedite engine warm-up during a cold-start.
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公开(公告)号：US20120323433A1
公开(公告)日：2012-12-20
申请号：US13162481
申请日：2011-06-16
IPC分类号： G01M15/02
摘要： A vacuum system diagnostic is disclosed. In one example, vacuum system leaks are diagnosed via a pressure reading of a vacuum reservoir. The approach may reduce the number of sensors used to diagnose vacuum system degradation.
摘要翻译： 公开了真空系统诊断。 在一个示例中，通过真空容器的压力读数诊断真空系统泄漏。 该方法可以减少用于诊断真空系统退化的传感器的数量。
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公开(公告)号：US09127578B2
公开(公告)日：2015-09-08
申请号：US13618884
申请日：2012-09-14
CPC分类号： F01M13/00 , F01M11/10 , F01M2013/0083 , F02D41/22 , F02D2250/08 , F02M25/06 , F02M35/10222 , F02M35/1038 , G01M15/042 , Y02T10/40
摘要： Systems and methods for monitoring crankcase ventilation system integrity are disclosed. In one example approach, a method comprises indicating a crankcase ventilation system degradation based on a lower vacuum than expected downstream of a PCV breather tube. For example, indicating a crankcase ventilation system degradation based on a lower vacuum than expected downstream of a PCV breather tube may include indicating a crankcase ventilation system degradation based on an absolute pressure sensor measurement relative to a gauge pressure sensor measurement.
摘要翻译： 公开了用于监测曲轴箱通风系统完整性的系统和方法。 在一个示例性方法中，一种方法包括基于比PCV通气管下游的预期更低的真空来指示曲轴箱通风系统劣化。 例如，指示基于比PCV通气管下游预期的真空低的曲轴箱通风系统劣化可以包括基于相对于表压传感器测量的绝对压力传感器测量来指示曲轴箱通风系统劣化。
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公开(公告)号：US08689617B2
公开(公告)日：2014-04-08
申请号：US13436632
申请日：2012-03-30
IPC分类号： G01M15/04
CPC分类号： G01M15/048 , F01P7/048 , F01P7/10 , F01P7/165 , F01P2025/12 , F01P2025/30 , F01P2060/04 , F01P2060/08 , F01P2060/12
摘要： Methods and systems are provided for diagnosing each of a plurality of engine cooling system components including various valves and grill shutters. Each valve may be individually closed and opened for a specified duration, and corresponding changes in coolant temperature may be monitored. If all the components are functional, the various valves may be adjusted to stagnate coolant at the engine and expedite engine warm-up during a cold-start.
摘要翻译： 提供了用于诊断多个发动机冷却系统部件中的每一个的方法和系统，包括各种阀门和烤架百叶窗。 每个阀可以单独关闭并打开指定的持续时间，并且可以监视冷却剂温度的相应变化。 如果所有组件都是功能性的，则可以调节各种阀门以使发动机处的冷却剂停滞，并在冷启动期间加速发动机预热。
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公开(公告)号：US20140081564A1
公开(公告)日：2014-03-20
申请号：US13620021
申请日：2012-09-14
CPC分类号： F01M11/10 , F01M13/02 , F01M13/021 , F01M2013/0083 , F02B77/08 , F02D41/062 , F02D41/22 , F02D2250/08 , F02D2250/26 , F02M25/06 , F02M35/10222 , F02M35/1038 , F02M35/10386 , G01M15/08 , Y02T10/40
摘要： Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.
摘要翻译： 提供了用于使用曲轴箱通气管压力或流量传感器来诊断曲轴箱系统完整性破坏的位置和性质的方法和系统。 同样的传感器也可用于诊断空气过滤器堵塞和PCV阀门降解。 使用现有传感器诊断多个发动机部件可降低成本和传感器压实效益。
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公开(公告)号：US08468879B2
公开(公告)日：2013-06-25
申请号：US13162481
申请日：2011-06-16
IPC分类号： G01M15/00
摘要： A vacuum system diagnostic is disclosed. In one example, vacuum system leaks are diagnosed via a pressure reading of a vacuum reservoir. The approach may reduce the number of sensors used to diagnose vacuum system degradation.
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公开(公告)号：US20140081551A1
公开(公告)日：2014-03-20
申请号：US13619856
申请日：2012-09-14
IPC分类号： G06F19/00
CPC分类号： F01M11/10 , F01M13/021 , F01M13/023 , F01M2013/027 , F02D2250/08
摘要： Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.
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