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公开(公告)号：US09926875B2
公开(公告)日：2018-03-27
申请号：US15168605
申请日：2016-05-31
发明人： Aed M. Dudar , Fling Tseng
CPC分类号： F02D41/222 , B60K15/03 , B60K2015/0319 , B60K2015/03197 , B60K2015/0321 , F02D41/021 , F02D2041/223 , G07C5/008
摘要： Methods and systems are provided for conducting a fuel tank pressure transducer rationality test diagnostic procedure in vehicles with sealed fuel tanks. In one example, vehicle-to-vehicle (V2V) or vehicle-to-infrastructure-to-vehicle (V2I2V) technology may be utilized to obtain fuel tank pressure transducer data from a select crowd of vehicles, where the select crowd may be based on the vehicles in the select crowd experiencing similar ambient temperature and weather as the vehicle being diagnosed. In this way, FTPT data from vehicles in the select crowd may be compared to FTPT data in the vehicle being diagnosed, in order to indicate whether the FTPT in the vehicle being diagnosed is functioning as desired, where such a diagnostic can be performed without unsealing the fuel tank on either the vehicle being diagnosed or the vehicles in the select crowd, and which may thus reduce undesired evaporative emissions.
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公开(公告)号：US09863356B2
公开(公告)日：2018-01-09
申请号：US15193897
申请日：2016-06-27
申请人： Robert Stack , Jonathan D Stoffer
发明人： Robert Stack , Jonathan D Stoffer
CPC分类号： F02D41/222 , F02D41/123 , F02D41/26 , F02D2041/223 , F02D2041/228 , F02D2200/0602 , F02M65/003 , G01M15/09
摘要： A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.
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公开(公告)号：US20170342931A1
公开(公告)日：2017-11-30
申请号：US15168605
申请日：2016-05-31
发明人： Aed M. Dudar , Fling Tseng
CPC分类号： F02D41/222 , B60K15/03 , B60K2015/0319 , B60K2015/03197 , B60K2015/0321 , F02D41/021 , F02D2041/223 , G07C5/008
摘要： Methods and systems are provided for conducting a fuel tank pressure transducer rationality test diagnostic procedure in vehicles with sealed fuel tanks. In one example, vehicle-to-vehicle (V2V) or vehicle-to-infrastructure-to-vehicle (V2I2V) technology may be utilized to obtain fuel tank pressure transducer data from a select crowd of vehicles, where the select crowd may be based on the vehicles in the select crowd experiencing similar ambient temperature and weather as the vehicle being diagnosed. In this way, FTPT data from vehicles in the select crowd may be compared to FTPT data in the vehicle being diagnosed, in order to indicate whether the FTPT in the vehicle being diagnosed is functioning as desired, where such a diagnostic can be performed without unsealing the fuel tank on either the vehicle being diagnosed or the vehicles in the select crowd, and which may thus reduce undesired evaporative emissions.
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公开(公告)号：US09751396B2
公开(公告)日：2017-09-05
申请号：US14630314
申请日：2015-02-24
发明人： Aed M. Dudar
CPC分类号： B60K15/03504 , B60K15/03519 , B60K2015/0321 , B60K2015/03302 , B60K2015/03514 , B60K2015/03576 , B60W20/16 , B60W2530/00 , B60W2710/06 , F02D29/02 , F02D41/003 , F02D41/222 , F02D2041/223 , F02D2200/0602 , F02M25/0809 , F02M25/089 , Y10S903/905
摘要： Methods and systems are provided for performing fuel tank pressure sensor rationality for a hybrid electric vehicle during refueling. In one example, a method may include indicating degradation of the fuel tank pressure sensor based on the pressure detected in the canister vent line when the canister vent line is restricted.
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公开(公告)号：US09732692B2
公开(公告)日：2017-08-15
申请号：US14577696
申请日：2014-12-19
发明人： Ryo Onozawa
CPC分类号： F02D41/222 , F02D41/042 , F02D41/18 , F02D41/3836 , F02D2041/223 , F02D2200/022
摘要： After an ECU is activated by turning a key switch on, if a total intake air quantity, which is indicative of the engine temperature immediately before turn-off of the key switch, exceeds a set intake air quantity indicative of a full warm-up determination temperature, and a soak time exceeds a set key-off time, it is determined that the condition for executing a diagnosis of a fuel pressure sensor is satisfied.
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公开(公告)号：US20160305358A1
公开(公告)日：2016-10-20
申请号：US15193897
申请日：2016-06-27
申请人： Robert Stack , Jonathan D. Stoffer
发明人： Robert Stack , Jonathan D. Stoffer
CPC分类号： F02D41/222 , F02D41/123 , F02D41/26 , F02D2041/223 , F02D2041/228 , F02D2200/0602 , F02M65/003 , G01M15/09
摘要： A first computer-implemented diagnostic method can run in response to an imminent deceleration fuel cutoff (DFCO) event. A second computer-implemented diagnostic method can run on engine shutdown. Both diagnostic methods involve controlling fuel injectors and a fuel pump to make the fuel rail pressure change from a desired minimum to a desired maximum. Measurements from the fuel rail pressure sensor at these endpoints can then be used to detect a fault of the fuel rail pressure sensor. One or both diagnostic methods can be implemented.
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公开(公告)号：US20160146146A1
公开(公告)日：2016-05-26
申请号：US14551906
申请日：2014-11-24
CPC分类号： F02D41/3854 , F02D41/20 , F02D41/26 , F02D41/3082 , F02D2041/2048 , F02D2041/2051 , F02D2041/223 , F02D2200/0602
摘要： Methods and systems are provided for enforcing a minimum fuel lift pump commanded voltage that is determined as a function of commanded lift pump pressure and fuel flow rate. The minimum fuel lift pump voltage is applied when the commanded voltage is lower than the minimum voltage. The approach reduces engine stalls induced by ingestion of fuel vapors at an injection pump coupled downstream of the lift pump.
摘要翻译： 提供的方法和系统用于执行根据指令的提升泵压力和燃料流量的函数确定的最小燃油提升泵指令电压。 当指令电压低于最小电压时，施加最小燃油提升泵电压。 该方法减少了在连接在提升泵下游的喷射泵处摄入燃料蒸汽而引起的发动机失速。
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公开(公告)号：US20160091381A1
公开(公告)日：2016-03-31
申请号：US14662353
申请日：2015-03-19
CPC分类号： G01L13/00 , F02C7/22 , F02C7/232 , F02C7/236 , F02C9/26 , F02C9/46 , F02D2041/223 , F02D2041/224 , F02D2041/225 , F05D2270/09 , G01M15/14
摘要： The present disclosure relates generally to a method for determining a failure of a flow divider within a fuel system, the method being performed by a controller and comprising the steps of: delivering a fuel command, calculating an expected fill time, wherein the expected fill time is indicative of the time required to fill a known fuel manifold volume, determining whether the actual fill time is greater than or equal to an expected fill time; and determining whether an actual fuel pressure value is less than or equal to an expect fuel pressure value based at least in part on at least one environmental signal.
摘要翻译： 本公开一般涉及一种用于确定燃料系统内的分流器的故障的方法，该方法由控制器执行，并且包括以下步骤：输送燃料命令，计算预期的填充时间，其中预期的填充时间 指示填充已知燃料歧管体积所需的时间，确定实际填充时间是否大于或等于预期填充时间; 以及至少部分地基于至少一个环境信号来确定实际燃料压力值是否小于或等于预期燃料压力值。
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49.发明申请公开(公告)号：US20160090933A1
公开(公告)日：2016-03-31
申请号：US14862357
申请日：2015-09-23
发明人： Shunichi TSUTSUJI , Koji Honda , Makiko Nakayama , Kinji Morihiro
CPC分类号： F02D41/22 , F02D41/406 , F02D2041/223 , F02D2041/224 , G01L27/007 , Y02T10/40
摘要： The fuel pressure sensor abnormality diagnosis apparatus diagnoses that a fuel pressure sensor is abnormal in the case where, because a state where a detected value of the fuel pressure sensor is less than a target value occurs, a fuel discharge amount of a fuel pump is increased, and as a result, the fuel discharge amount reaches its maximum amount, and even if a predetermined period has elapsed since the fuel discharge amount reaches its maximum amount, the detected value is less than the target value.
摘要翻译： 燃料压力传感器异常诊断装置在发生燃料压力传感器的检测值小于目标值的状态的情况下，燃料压力传感器异常，燃料泵的燃料排出量增加 结果燃料排出量达到其最大量，并且即使从燃料排出量达到最大量起经过了规定期间，检测值小于目标值。
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公开(公告)号：US20150184610A1
公开(公告)日：2015-07-02
申请号：US14577696
申请日：2014-12-19
发明人： Ryo ONOZAWA
CPC分类号： F02D41/222 , F02D41/042 , F02D41/18 , F02D41/3836 , F02D2041/223 , F02D2200/022
摘要： After an ECU is activated by turning a key switch on, if a total intake air quantity, which is indicative of the engine temperature immediately before turn-off of the key switch, exceeds a set intake air quantity indicative of a full warm-up determination temperature, and a soak time exceeds a set key-off time, it is determined that the condition for executing a diagnosis of a fuel pressure sensor is satisfied.
摘要翻译： 在通过打开钥匙开关来激活ECU之后，如果指示关闭钥匙开关之前的发动机温度的总进气量超过表示完全预热确定的设定进气量 温度和浸泡时间超过设定的关闭时间，则确定满足用于执行燃料压力传感器的诊断的条件。
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