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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: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: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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4.
公开(公告)号:US08893665B2
公开(公告)日:2014-11-25
申请号:US13211822
申请日:2011-08-17
CPC分类号: F02D41/04 , F02D19/0655 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/1454 , F02D2200/0404 , F02D2200/0612 , F02D2200/0614 , F02D2200/101 , Y02T10/36
摘要: An engine system for determining an alcohol concentration in fuel is disclosed. In one example, engine throttle position, fuel pulse width, and air-fuel ratio form a basis for determining alcohol concentration of a fuel combusted in an engine. The system and its related method may improve engine operation in conjunction with detecting an alcohol concentration of a fuel.
摘要翻译: 公开了一种用于确定燃料中酒精浓度的发动机系统。 在一个示例中,发动机节气门位置,燃料脉冲宽度和空燃比构成了用于确定在发动机中燃烧的燃料的酒精浓度的基础。 该系统及其相关方法可以结合检测燃料的酒精浓度来改善发动机的运行。
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5.
公开(公告)号:US20130042846A1
公开(公告)日:2013-02-21
申请号:US13211822
申请日:2011-08-17
IPC分类号: F02D41/04
CPC分类号: F02D41/04 , F02D19/0655 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/1454 , F02D2200/0404 , F02D2200/0612 , F02D2200/0614 , F02D2200/101 , Y02T10/36
摘要: An engine system for determining an alcohol concentration in fuel is disclosed. In one example, engine throttle position, fuel pulse width, and air-fuel ratio form a basis for determining alcohol concentration of a fuel combusted in an engine. The system and its related method may improve engine operation in conjunction with detecting an alcohol concentration of a fuel.
摘要翻译: 公开了一种用于确定燃料中酒精浓度的发动机系统。 在一个示例中,发动机节气门位置,燃料脉冲宽度和空燃比构成了用于确定在发动机中燃烧的燃料的酒精浓度的基础。 该系统及其相关方法可以结合检测燃料的酒精浓度来改善发动机的运行。
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