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公开(公告)号：US20130213355A1
公开(公告)日：2013-08-22
申请号：US13847348
申请日：2013-03-19
IPC分类号： F02D41/00
CPC分类号： F02D41/00 , F02D41/0025 , F02D41/008 , F02D2200/0612 , F02D2200/1012
摘要： Systems and methods for identifying alcohol content of a fuel in an engine. In one example approach, a method comprises adjusting fuel injection to the engine based on fuel alcohol content identified from crankshaft acceleration. For example, the crankshaft acceleration may be generated by modulating an air/fuel ratio in a selected cylinder across a range of air/fuel ratios while keeping the engine at stoichiometry.
摘要翻译： 用于识别发动机中燃料的酒精含量的系统和方法。 在一个示例性方法中，一种方法包括基于从曲轴加速度识别的燃料酒精含量调节对发动机的燃料喷射。 例如，可以通过在保持发动机处于化学计量比的情况下在一定范围的空气/燃料比中调节所选气缸中的空气/燃料比来产生曲轴加速度。
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公开(公告)号：US20130184969A1
公开(公告)日：2013-07-18
申请号：US13353240
申请日：2012-01-18
IPC分类号： F02D41/00
摘要： Systems and methods for monitoring cylinder air/fuel imbalances are provided. In one example approach, a method comprises, identifying a cylinder with a potential air/fuel imbalance based on crankshaft accelerations generated by a series of rich, lean, and stoichiometric conditions in the cylinder while keeping the engine at stoichiometry.
摘要翻译： 提供了监测气缸空气/燃料不平衡的系统和方法。 在一个示例性方法中，一种方法包括：基于在气缸中由一系列富，贫和化学计量条件产生的曲轴加速度，识别具有潜在空气/燃料不平衡的气缸，同时将发动机保持在化学计量。
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公开(公告)号：US20120138017A1
公开(公告)日：2012-06-07
申请号：US13353255
申请日：2012-01-18
IPC分类号： F02D41/10
CPC分类号： F02D41/00 , F02D41/0025 , F02D41/008 , F02D2200/0612 , F02D2200/1012
摘要： Systems and methods for identifying alcohol content of a fuel in an engine. In one example approach, a method comprises adjusting fuel injection to the engine based on fuel alcohol content identified from crankshaft acceleration. For example, the crankshaft acceleration may be generated by modulating an air/fuel ratio in a selected cylinder across a range of air/fuel ratios while keeping the engine at stoichiometry.
摘要翻译： 用于识别发动机中燃料的酒精含量的系统和方法。 在一个示例性方法中，一种方法包括基于从曲轴加速度识别的燃料酒精含量调节对发动机的燃料喷射。 例如，可以通过在保持发动机处于化学计量比的情况下在一定范围的空气/燃料比中调节所选气缸中的空气/燃料比来产生曲轴加速度。
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公开(公告)号：US10570844B2
公开(公告)日：2020-02-25
申请号：US13353240
申请日：2012-01-18
摘要： Systems and methods for monitoring cylinder air/fuel imbalances are provided. In one example approach, a method comprises, identifying a cylinder with a potential air/fuel imbalance based on crankshaft accelerations generated by a series of rich, lean, and stoichiometric conditions in the cylinder while keeping the engine at stoichiometry.
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公开(公告)号：US08401764B2
公开(公告)日：2013-03-19
申请号：US13353255
申请日：2012-01-18
IPC分类号： F02D41/30
CPC分类号： F02D41/00 , F02D41/0025 , F02D41/008 , F02D2200/0612 , F02D2200/1012
摘要： Systems and methods for identifying alcohol content of a fuel in an engine. In one example approach, a method comprises adjusting fuel injection to the engine based on fuel alcohol content identified from crankshaft acceleration. For example, the crankshaft acceleration may be generated by modulating an air/fuel ratio in a selected cylinder across a range of air/fuel ratios while keeping the engine at stoichiometry.
摘要翻译： 用于识别发动机中燃料的酒精含量的系统和方法。 在一个示例性方法中，一种方法包括基于从曲轴加速度识别的燃料酒精含量调节对发动机的燃料喷射。 例如，可以通过在保持发动机处于化学计量比的情况下在一定范围的空气/燃料比中调节所选气缸中的空气/燃料比来产生曲轴加速度。
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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：US20140076249A1
公开(公告)日：2014-03-20
申请号：US13619941
申请日：2012-09-14
CPC分类号： F01M13/00 , F01M11/00 , F01M2013/0083 , F02B29/0406 , F02B37/00 , F02B77/08 , F02M25/06 , F02M35/09 , F02M35/1038 , Y02T10/121
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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