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1.发明授权公开(公告)号：US09222419B2
公开(公告)日：2015-12-29
申请号：US13394931
申请日：2009-10-27
CPC分类号： F02D9/06 , F02D13/08 , F02D41/0087 , F02D41/22 , F02D41/221 , F02D2041/0012 , Y02T10/18 , Y02T10/40
摘要： A control apparatus which is capable of determining an abnormality of a stopping operation of an exhaust valve without using a dedicated sensor for detecting the abnormality in an internal combustion engine including a valve stop mechanism capable of maintaining the exhaust valve and an intake valve in a valve closed state is provided. It is discriminated whether or not there is a change to a rich side of a air fuel ratio of gas detected by a main A/F sensor at the time of a fuel cut for all the cylinders associated with a valve stop request for the exhaust valves and intake valves of all the cylinders. Then, when it is discriminated that there is the change to the rich side of the air fuel ratio of the gas, it is determined that the stopping operation of the exhaust valve is not performed in a normal manner in at least one cylinder.
摘要翻译： 一种控制装置，其能够确定排气门的停止操作的异常，而不使用用于检测内燃机的异常的专用传感器，该内燃机包括能够将排气阀和进气阀保持在阀中的阀止动机构 提供关闭状态。 对与排气门的阀停止请求相关联的所有气缸的燃料切断时是否存在由主A / F传感器检测到的气体的空气燃料比的浓侧有无变化 和所有气缸的进气门。 然后，当鉴别出气体的空燃比的浓侧发生变化时，确定在至少一个气缸中不以正常方式执行排气门的停止操作。
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公开(公告)号：US08989988B2
公开(公告)日：2015-03-24
申请号：US13634055
申请日：2010-03-19
CPC分类号： F02D13/06 , F02D13/0207 , F02D41/0002 , F02D41/126 , F02D41/1454 , F02D41/22 , F02D2041/0012 , F02D2200/0802 , Y02T10/18 , Y02T10/42
摘要： Valve stopping control is performed that changes an operating state of an intake valve and an exhaust valve to a closed-valve stopped state when executing a fuel-cut operation. A device is provided that sets an in-cylinder return-time target air-fuel ratio for an initial two return cycles when returning from a fuel-cut operation. The return-time target air-fuel ratio is set so that respective air-fuel ratios of air-fuel mixtures of fuel and air injected into the same cylinder for respective cycles during the initial return cycles each become values that fall within a combustible range, and so that even if a total amount of fuel injected into the same cylinder for the initial return cycles is supplied into the cylinder during an arbitrary single cycle, the air-fuel ratio of the air-fuel mixture of the total amount of fuel and air becomes a value that falls within the combustible range.
摘要翻译： 执行在执行燃料切断操作时将进气门和排气阀的运行状态改变为闭阀停止状态的阀停止控制。 提供了一种装置，当从燃料切断操作返回时，设定用于初始两个返回循环的缸内返回时间目标空燃比。 返回时间目标空燃比被设定为使得在初始返回循环期间各自循环注入到同一气缸中的燃料和空气的空气燃料混合物的空燃比分别变为落入可燃范围内的值， 并且即使在任意的单个循环中，即使在初始返回循环中喷射到同一气缸中的燃料的总量在任意单个循环中被供应到气缸中，则空气 - 燃料混合物的空燃比燃料和空气的总量 成为落在可燃范围内的值。
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公开(公告)号：US08918267B2
公开(公告)日：2014-12-23
申请号：US13259665
申请日：2009-12-16
IPC分类号： B60T7/12 , G05D1/00 , G06F7/00 , G06F17/00 , F02D13/08 , F02D41/12 , F02D41/08 , F02D41/00 , F02D41/02
CPC分类号： F02D41/123 , F02D13/08 , F02D41/0002 , F02D41/0087 , F02D41/0235 , F02D41/08 , F02D2041/001 , F02D2200/0802 , F02D2200/101 , Y02T10/18 , Y02T10/42
摘要： A control apparatus for an internal combustion engine is provided, the control apparatus being capable of effectively suppressing the inflow of fresh air into a catalyst due to an operational delay of the valve stop mechanism when an execution request for fuel cut is issued. There is provided a valve stop mechanism capable of changing the operational states of intake valves and exhaust valves between a valve operating state and a valve closed/stopped state. The operational states of the intake and exhaust valves are changed into the valve closed/stopped state, if the engine rotational speed decreases to or below a predetermined rotational speed when the engine rotational speed is higher than the predetermined rotational speed in a case where an execution request for fuel cut is detected and the temperature of the catalyst is not lower than a predetermined temperature during operation of an internal combustion engine.
摘要翻译： 提供了一种用于内燃机的控制装置，该控制装置能够在发出执行燃料切断请求时由于阀停止机构的操作延迟而有效地抑制新鲜空气进入催化剂的流入。 提供一种能够在阀操作状态和阀关闭/停止状态之间改变进气门和排气阀的操作状态的阀停止机构。 如果在发动机转速高于预定旋转速度时发动机转速降低到或低于预定旋转速度时，进气门和排气门的操作状态变为阀关闭/停止状态 检测到燃料切断的要求，并且在内燃机运转期间催化剂的温度不低于预定温度。
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公开(公告)号：US20120022769A1
公开(公告)日：2012-01-26
申请号：US13259665
申请日：2009-12-16
IPC分类号： F02D41/00
CPC分类号： F02D41/123 , F02D13/08 , F02D41/0002 , F02D41/0087 , F02D41/0235 , F02D41/08 , F02D2041/001 , F02D2200/0802 , F02D2200/101 , Y02T10/18 , Y02T10/42
摘要： A control apparatus for an internal combustion engine is provided, the control apparatus being capable of effectively suppressing the inflow of fresh air into a catalyst due to an operational delay of the valve stop mechanism when an execution request for fuel cut is issued. There is provided a valve stop mechanism capable of changing the operational states of intake valves and exhaust valves between a valve operating state and a valve closed/stopped state. The operational states of the intake and exhaust valves are changed into the valve closed/stopped state, if the engine rotational speed decreases to or below a predetermined rotational speed when the engine rotational speed is higher than the predetermined rotational speed in a case where an execution request for fuel cut is detected and the temperature of the catalyst is not lower than a predetermined temperature during operation of an internal combustion engine
摘要翻译： 提供了一种用于内燃机的控制装置，该控制装置能够在发出执行燃料切断请求时由于阀停止机构的操作延迟而有效地抑制新鲜空气进入催化剂的流入。 提供一种能够在阀操作状态和阀关闭/停止状态之间改变进气门和排气阀的操作状态的阀停止机构。 如果在发动机转速高于预定旋转速度时发动机转速降低到或低于预定旋转速度时，进气门和排气门的操作状态变为阀关闭/停止状态 检测到燃料切断的要求，并且在内燃机运转期间催化剂的温度不低于预定温度
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公开(公告)号：US07349791B2
公开(公告)日：2008-03-25
申请号：US10585668
申请日：2005-10-13
CPC分类号： F02D13/0261 , F02D31/003 , F02D41/005 , F02D41/006 , F02D41/0065 , F02D41/123 , F02D41/1454 , F02D2041/0017 , F02D2041/002 , F02D2200/1015 , F02M26/01 , F02M26/15 , F02M26/28 , F02M26/60 , F02M2026/005 , Y02T10/18 , Y02T10/47
摘要： An acceleration request is detected in accordance with an accelerator opening PA (time t3 in FIG. 5B). If the detected acceleration request is a moderate acceleration request, an idle opening TA0 is set as an actual throttle opening TA (FIG. 5E), and a request for retarding an intake valve timing VVT is issued (FIG. 5D). Recovery from fuel cut-off is achieved at time t4 at which a misfire limit value (combustion assurance VVT value L) is reached by an actual VVT value (FIG. 5A).
摘要翻译： 根据加速器开度PA（图5B中的时间t 3）检测加速请求。 如果检测到的加速请求是中等加速度请求，则将空转开度TA 0设定为实际节气门开度TA（图5E），并且发出延迟进气门正时VVT的请求（图5D）。 在时间t 4，通过实际的VVT值达到失火极限值（燃烧保证VVT值L）（图5A）实现燃料切断的恢复。
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公开(公告)号：US20080041339A1
公开(公告)日：2008-02-21
申请号：US10585668
申请日：2005-10-13
IPC分类号： F02P5/145
CPC分类号： F02D13/0261 , F02D31/003 , F02D41/005 , F02D41/006 , F02D41/0065 , F02D41/123 , F02D41/1454 , F02D2041/0017 , F02D2041/002 , F02D2200/1015 , F02M26/01 , F02M26/15 , F02M26/28 , F02M26/60 , F02M2026/005 , Y02T10/18 , Y02T10/47
摘要： An acceleration request is detected in accordance with an accelerator opening PA (time t3 in FIG. 5B). If the detected acceleration request is a moderate acceleration request, an idle opening TA0 is set as an actual throttle opening TA (FIG. 5E), and a request for retarding an intake valve timing VVT is issued (FIG. 5D). Recovery from fuel cut-off is achieved at time t4 at which a misfire limit value (combustion assurance VVT value L) is reached by an actual VVT value (FIG. 5A).
摘要翻译： 根据加速器开度PA（图5B中的时间t3）检测加速请求。 如果检测到的加速请求是中等加速度请求，则将空转开度TA0设定为实际节气门开度TA（图5E），并且发出延迟进气门正时VVT的请求（图5D）。 在时间t4，通过实际VVT值达到失火极限值（燃烧保证VVT值L）（图5A）实现燃料切断的恢复。
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公开(公告)号：US09109520B2
公开(公告)日：2015-08-18
申请号：US13883584
申请日：2010-11-18
IPC分类号： F02D41/22 , F02D41/00 , F02D13/02 , B60W10/06 , F02D41/12 , F01L13/00 , F01L1/18 , F01L1/053
CPC分类号： F02D41/0002 , B60W10/06 , F01L1/18 , F01L13/0005 , F01L2001/0537 , F01L2800/11 , F02D13/02 , F02D41/123 , F02D41/221 , F02D2041/001 , F02D2041/0012 , F02D2200/0406 , F02D2200/0408 , F02D2200/703 , Y02T10/18 , Y02T10/40
摘要： Provided is a control apparatus for an internal combustion engine, which can determine whether or not there is a failure concerning a switching of an operational state of an intake valve, in the internal combustion engine that includes a valve stop mechanism that is capable of switching the operational state of the intake valve between a valve operating state and a valve closed/stopped state, without the need of adding a new sensor for the failure determination. An intake variable valve operating apparatus (66) is provided that includes a valve stop mechanism capable of switching the operational state of the intake valve (62) between the valve operating state and the valve closed/stopped state. A crank angle sensor (72) is provided for detecting the crank angle of the internal combustion engine (12). An intake pressure sensor (56) is provided for detecting the actual intake pressure pim. It is determined whether or not there is a failure concerning the switching of the operational state of the intake valve (62) between the valve operating state and the valve closed/stopped state by the valve stop mechanism, based on an intake pressure difference dlpm (first difference) between the actual intake pressure pim and the pseudo intake pressure pmcrt at a predetermined crank angle (for example, 60° CA after the top dead center in each cylinder).
摘要翻译： 提供一种用于内燃机的控制装置，其能够确定在内燃机中是否存在关于进气门的操作状态的切换的故障，该内燃机包括能够切换 在阀操作状态和阀关闭/停止状态之间的进气阀的操作状态，而不需要添加用于故障确定的新传感器。 提供了一种进气可变气门操作装置（66），其包括能够切换阀操作状态和阀关闭/停止状态之间的进气门（62）的操作状态的阀停止机构。 提供了一种用于检测内燃机（12）的曲柄角的曲柄角传感器（72）。 提供进气压力传感器（56），用于检测实际进气压力pim。 基于进气压力差d1pm，确定是否存在关于通过阀停止机构在阀操作状态和阀关闭/停止状态之间切换进气门（62）的操作状态的故障 第一差异）在预定的曲柄角（例如，每个气缸中的上止点之后的60°CA）之间的实际进气压力pim和假进气压力pmcrt之间。
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公开(公告)号：US08560210B2
公开(公告)日：2013-10-15
申请号：US13511007
申请日：2010-01-20
CPC分类号： F02D13/06 , F01L13/0005 , F01L2001/0537 , F01L2013/001 , F02B2075/125 , F02D41/0087 , F02D41/047 , F02D41/126 , F02D2041/0012 , F02D2200/0408 , F02D2200/0802 , Y02T10/18
摘要： A control apparatus for an internal combustion engine is provided, which is capable of suppressing deterioration of exhaust emission due to an unburned fuel contained in oil which enters a combustion chamber during valve stop control while preventing inflow of fresh air to a catalyst, at a time of valve return following return from fuel cut. Variable valve operating apparatuses having valve stop mechanisms capable of changing operation states of an intake valve and an exhaust valve between valve operation states and valve closed and stopped states are included. Valve stop control that changes the operation states of the intake valve and the exhaust valve to the valve closed and stopped states is performed, at a time of execution of the fuel cut. When a return request from the fuel cut with the valve stop control is detected, a fuel is supplied to a combustion chamber before the operation state of the exhaust valve is returned to the valve operation state. The fuel supply amount in this case is corrected in accordance with an amount of the unburned fuel contained in the oil which enters into the combustion chamber from a crank chamber side during the fuel cut with the valve stop control.
摘要翻译： 提供了一种用于内燃机的控制装置，其能够抑制在停止控制期间进入燃烧室的油中包含的未燃烧燃料的废气排放的劣化，同时防止新鲜空气一次流入催化剂 从燃油切断返回后阀门返回。 包括具有能够改变阀操作状态和阀关闭和停止状态之间的进气门和排气阀的操作状态的阀停止机构的可变气门操作装置。 在执行燃料切断时，执行将进气门和排气阀的运行状态改变为阀关闭和停止状态的阀停止控制。 当检测到具有阀停止控制的燃料切断的返回请求时，在排气阀的操作状态返回到阀操作状态之前，向燃烧室供给燃料。 在这种情况下的燃料供给量根据在阀停止控制的燃料切断期间从曲轴室侧进入燃烧室的油中所含有的未燃烧燃料的量进行校正。
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公开(公告)号：US20130116872A1
公开(公告)日：2013-05-09
申请号：US13695655
申请日：2010-07-26
IPC分类号： B60W20/00
CPC分类号： B60W20/15 , B60K6/445 , B60W10/06 , B60W10/08 , B60W20/00 , B60W20/16 , B60W2510/0604 , B60W2510/068 , B60W2530/12 , B60Y2300/46 , B60Y2300/525 , B60Y2300/64 , Y02T10/54 , Y02T10/6239 , Y02T10/6286 , Y10S903/903
摘要： An engine includes variable valve mechanisms capable of causing an intake valve and an exhaust valve to stop. An ECU estimates poisoning states of catalysts, and executes and prohibits stopping of the valves based on the poisoning states. When stopping of the valves is prohibited during a fuel-cut operation, the ECU drives a crankshaft of the engine by means of a motor to idle the engine. Thus, even in a hybrid vehicle in which the engine is stopped during a fuel-cut operation, a sufficient amount of oxygen can be rapidly supplied to the catalysts by utilizing a pumping action of pistons, and the catalysts can be caused to recover from rich poisoning efficiently.
摘要翻译： 发动机包括能够使进气阀和排气阀停止的可变阀机构。 ECU估计催化剂的中毒状态，并根据中毒状态执行并禁止阀停止。 在燃油切断操作期间禁止阀停止时，ECU通过电动机驱动发动机的曲轴以使发动机怠速。 因此，即使在燃料切断作业中发动机停止的混合动力车辆中，也可以通过利用活塞的泵送作用将足够量的氧气迅速地供给到催化剂中，并且可以使催化剂从富 有效中毒
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公开(公告)号：US20130006502A1
公开(公告)日：2013-01-03
申请号：US13634055
申请日：2010-03-19
IPC分类号： F02D41/30
CPC分类号： F02D13/06 , F02D13/0207 , F02D41/0002 , F02D41/126 , F02D41/1454 , F02D41/22 , F02D2041/0012 , F02D2200/0802 , Y02T10/18 , Y02T10/42
摘要： Valve stopping control is performed that changes an operating state of an intake valve and an exhaust valve to a closed-valve stopped state when executing a fuel-cut operation. A device is provided that sets an in-cylinder return-time target air-fuel ratio for an initial two return cycles when returning from a fuel-cut operation. The return-time target air-fuel ratio is set so that respective air-fuel ratios of air-fuel mixtures of fuel and air injected into the same cylinder for respective cycles during the initial return cycles each become values that fall within a combustible range, and so that even if a total amount of fuel injected into the same cylinder for the initial return cycles is supplied into the cylinder during an arbitrary single cycle, the air-fuel ratio of the air-fuel mixture of the total amount of fuel and air becomes a value that falls within the combustible range.
摘要翻译： 执行在执行燃料切断操作时将进气门和排气阀的运行状态改变为闭阀停止状态的阀停止控制。 提供了一种装置，当从燃料切断操作返回时，设定用于初始两个返回循环的缸内返回时间目标空燃比。 返回时间目标空燃比被设定为使得在初始返回循环期间各自循环注入到同一气缸中的燃料和空气的空气燃料混合物的空燃比分别变为落入可燃范围内的值， 并且即使在任意的单个循环中，即使在初始返回循环中喷射到同一气缸中的燃料的总量在任意单个循环中被供应到气缸中，则空气 - 燃料混合物的空燃比燃料和空气的总量 成为落在可燃范围内的值。
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