-
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。
-
12.发明申请公开(公告)号：US20120173122A1
公开(公告)日：2012-07-05
申请号：US13394931
申请日：2009-10-27
IPC分类号： F02D41/26
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。
-
公开(公告)号：US08972156B2
公开(公告)日：2015-03-03
申请号：US13812054
申请日：2010-10-27
CPC分类号： F02D41/00 , B60K6/24 , F01L1/34 , F02B2275/16 , F02D13/08 , F02D41/042 , F02D41/126 , F02D2041/001 , F02N19/004 , Y02T10/18
摘要： An engine includes an intake variable valve mechanism and an exhaust variable valve mechanism. An ECU causes all intake valves in all cylinders to stop in a closed state by means of intake variable valve mechanism when performing a fuel-cut operation, including when the engine is stopped. The ECU causes at least one exhaust valve in all cylinders to stop in an open state by means of exhaust variable valve mechanism. When executing a fuel-cut operation, needless compression can be avoided by stopping the exhaust valves in an open state, while protecting a catalyst from deterioration caused by contact with intake air by stopping the intake valves in a closed state. The amount of oil consumption of the engine, and electric power consumption, vibrations and a tendency for spontaneous ignition to occur at cranking time can be improved.
摘要翻译： 发动机包括进气可变气门机构和排气可变气门机构。 当执行燃料切断操作时，包括当发动机停止时，ECU使得所有气缸中的所有进气阀在关闭状态下通过进气可变气门机构停止。 ECU使所有气缸中的至少一个排气阀通过排气可变阀机构停止在打开状态。 当执行燃料切断操作时，可以通过将排气阀停止在打开状态来避免不必要的压缩，同时通过将进气门停止在关闭状态来保护催化剂免于与进气接触导致的劣化。 可以提高发动机的油耗量，电力消耗，振动和起动时自发发生的倾向。
-
公开(公告)号：US08843259B2
公开(公告)日：2014-09-23
申请号：US13695655
申请日：2010-07-26
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
-
公开(公告)号：US08826891B2
公开(公告)日：2014-09-09
申请号：US13878128
申请日：2010-12-02
CPC分类号： F02D17/00 , F02D13/00 , F02D13/0253 , F02D13/06 , F02D17/02 , F02D41/0087 , F02D41/123 , F02D41/1497 , F02D41/221 , F02D2041/001 , F02D2041/0012 , F02D2200/1002 , F02D2250/21 , Y02T10/18
摘要： Provided is a control apparatus for an internal combustion engine which can successfully determine whether or not a failure concerning a stopping operation of an exhaust valve has occurred, without the need of providing a dedicated sensor for the failure determination. An intake variable valve operating apparatus (62) and an exhaust variable valve operating apparatus (64) are included that have valve stop mechanisms capable of switching each operational state of an intake valve (58) and an exhaust valve (60) between a valve operating state and a valve closed/stopped state. It is determined whether or not a failure concerning a stopping operation of the exhaust valve (60) from the valve operating state to the valve closed/stopped state has occurred, on the basis of the magnitude of the negative torque of when an execution request that is accompanied by a valve stop request to switch each operational state of the intake valve (58) and the exhaust valve (60) from the valve operating state to the valve closed/stopped state has been issued, in a case in which it is determined that a failure concerning the stopping operation of the intake valve (58) has not occurred.
摘要翻译： 提供一种用于内燃机的控制装置，其能够成功地确定是否已经发生了关于排气门的停止操作的故障，而不需要提供用于故障确定的专用传感器。 包括一个进气可变气门操作装置（62）和排气可变气门操作装置（64），其具有能够切换进气门（58）和排气门（60）的各个操作状态的阀门止动机构 状态和阀关闭/停止状态。 基于当执行请求的负转矩的大小确定是否已经发生关于从阀操作状态到阀关闭/停止状态的排气阀（60）的停止操作的故障 伴随有一个阀门停止请求，在确定进气门（58）和排气阀（60）的每个操作状态从阀操作状态切换到阀关闭/停止状态的情况下 没有发生关于进气门（58）的停止操作的故障。
-
公开(公告)号：US08806856B2
公开(公告)日：2014-08-19
申请号：US13522462
申请日：2010-03-02
IPC分类号： F01N11/00
CPC分类号： F02D13/08 , F02B2075/125 , F02D17/02 , F02D41/0005 , F02D41/0235 , F02D41/0295 , F02D41/123 , F02D41/1439 , F02D41/1454 , F02D41/18 , F02D2041/0012 , F02D2200/0802 , Y02T10/123 , Y02T10/18
摘要： Provided is a control apparatus for an internal combustion engine that can favorably achieve compatibility between suppressing deterioration of a catalyst and suppressing progression of rich poisoning thereof when the internal combustion engine has a configuration that performs valve stopping control during a fuel-cut operation. Variable valve operating apparatuses are provided having valve stop mechanisms that can respectively change an operating state of an intake valve and an exhaust valve between a valve operating state and a closed-valve stopped state. When an integrated fuel injection amount is equal to or greater than a predetermined value β when executing a fuel-cut operation, it is determined that rich poisoning of an upstream catalyst is in a progressed state. In that case, valve stopping control of the intake and exhaust valves is prohibited to thereby supply oxygen to the upstream catalyst.
摘要翻译： 本发明提供一种内燃机的控制装置，其能够在燃料切断动作中具有进行阀停止控制的结构的情况下，有利地实现抑制催化剂的劣化和抑制其中毒的进行的相容性。 可变气门操作装置设置有具有能够在阀操作状态和闭阀停止状态之间分别改变进气门和排气阀的操作状态的阀停止机构。 当集成燃料喷射量等于或大于预定值＆lt; bgr时; 当执行燃料切断操作时，确定上游催化剂的富集中毒处于进行状态。 在这种情况下，禁止进气阀和排气阀的阀停止控制，从而向上游催化剂供给氧。
-
公开(公告)号：US20130255606A1
公开(公告)日：2013-10-03
申请号：US13812054
申请日：2010-10-27
IPC分类号： F02D41/00
CPC分类号： F02D41/00 , B60K6/24 , F01L1/34 , F02B2275/16 , F02D13/08 , F02D41/042 , F02D41/126 , F02D2041/001 , F02N19/004 , Y02T10/18
摘要： An engine includes an intake variable valve mechanism and an exhaust variable valve mechanism. An ECU causes all intake valves in all cylinders to stop in a closed state by means of intake variable valve mechanism when performing a fuel-cut operation, including when the engine is stopped. The ECU causes at least one exhaust valve in all cylinders to stop in an open state by means of exhaust variable valve mechanism. When executing a fuel-cut operation, needless compression can be avoided by stopping the exhaust valves in an open state, while protecting a catalyst from deterioration caused by contact with intake air by stopping the intake valves in a closed state. The amount of oil consumption of the engine, and electric power consumption, vibrations and a tendency for spontaneous ignition to occur at cranking time can be improved.
摘要翻译： 发动机包括进气可变气门机构和排气可变气门机构。 当执行燃料切断操作时，包括当发动机停止时，ECU使得所有气缸中的所有进气阀在关闭状态下通过进气可变气门机构停止。 ECU使所有气缸中的至少一个排气阀通过排气可变阀机构停止在打开状态。 当执行燃料切断操作时，可以通过将排气阀停止在打开状态来避免不必要的压缩，同时通过将进气门停止在关闭状态来保护催化剂免于与进气接触导致的劣化。 可以提高发动机的油耗量，电力消耗，振动和起动时自发发生的倾向。
-
公开(公告)号：US20130239917A1
公开(公告)日：2013-09-19
申请号：US13878128
申请日：2010-12-02
IPC分类号： F02D13/00
CPC分类号： F02D17/00 , F02D13/00 , F02D13/0253 , F02D13/06 , F02D17/02 , F02D41/0087 , F02D41/123 , F02D41/1497 , F02D41/221 , F02D2041/001 , F02D2041/0012 , F02D2200/1002 , F02D2250/21 , Y02T10/18
摘要： Provided is a control apparatus for an internal combustion engine which can successfully determine whether or not a failure concerning a stopping operation of an exhaust valve has occurred, without the need of providing a dedicated sensor for the failure determination. An intake variable valve operating apparatus (62) and an exhaust variable valve operating apparatus (64) are included that have valve stop mechanisms capable of switching each operational state of an intake valve (58) and an exhaust valve (60) between a valve operating state and a valve closed/stopped state. It is determined whether or not a failure concerning a stopping operation of the exhaust valve (60) from the valve operating state to the valve closed/stopped state has occurred, on the basis of the magnitude of the negative torque of when an execution request that is accompanied by a valve stop request to switch each operational state of the intake valve (58) and the exhaust valve (60) from the valve operating state to the valve closed/stopped state has been issued, in a case in which it is determined that a failure concerning the stopping operation of the intake valve (58) has not occurred.
摘要翻译： 提供一种用于内燃机的控制装置，其能够成功地确定是否已经发生了关于排气门的停止操作的故障，而不需要提供用于故障确定的专用传感器。 包括一个进气可变气门操作装置（62）和排气可变气门操作装置（64），其具有能够切换进气门（58）和排气门（60）的各个操作状态的阀门止动机构 状态和阀关闭/停止状态。 基于当执行请求的负转矩的大小确定是否已经发生关于从阀操作状态到阀关闭/停止状态的排气阀（60）的停止操作的故障 伴随有一个阀门停止请求，在确定进气门（58）和排气阀（60）的每个操作状态从阀操作状态切换到阀关闭/停止状态的情况下 没有发生关于进气门（58）的停止操作的故障。
-
公开(公告)号：US20130231843A1
公开(公告)日：2013-09-05
申请号：US13883584
申请日：2010-11-18
IPC分类号： F02D41/00
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° C.A 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。
-
公开(公告)号：US08443588B2
公开(公告)日：2013-05-21
申请号：US13257316
申请日：2010-01-18
IPC分类号： F01N3/00
CPC分类号： F02D13/08 , B60L11/123 , B60L11/14 , B60L2240/36 , B60L2240/44 , B60L2240/80 , B60L2270/12 , B60W10/06 , B60W20/16 , F01L1/267 , F01L13/0005 , F01L13/0021 , F01L13/0036 , F01L2800/03 , F01L2820/031 , F02D17/04 , F02D41/0235 , F02D41/042 , F02D2041/001 , F02D2200/0802 , F02N19/005 , F02N2019/008 , Y02T10/18 , Y02T10/6217 , Y02T10/7077
摘要： There is provided a control apparatus for an internal combustion engine, which can favorably reduce a load necessary for cranking at the time of the next start, while preventing the fresh air inflow to a catalyst at the time of the stop of the internal combustion engine. A valve stop command is issued to an electrically-driven actuator so that the operational states of intake and exhaust valves becomes a valve closed/stopped state when fuel supply is stopped in response to an establishment of a predetermined stop condition of the internal combustion engine. Then, to return the operational states of the intake and exhaust valves to a valve operating state after the completion of the stopping operation of the internal combustion engine, a valve return command is issued to the actuator, and a crankshaft is rotationally driven by a predetermined angle required to return the operational states of the intake and exhaust valves to the valve operating state.
摘要翻译： 提供了一种用于内燃机的控制装置，其可以有利地降低下一次起动时起动所需的负载，同时防止在内燃机停止时新鲜空气流入催化剂。 向电动致动器发出阀停止命令，使得当燃料供给停止时，进气门和排气门的运行状态响应于内燃机的预定停止条件的建立而变为阀关闭/停止状态。 然后，在内燃机停止运转结束后，将进气门和排气门的运转状态返回至阀运行状态，向执行机构发出阀返回指令，并将曲轴旋转驱动预定 将进气门和排气门的操作状态返回到阀操作状态所需的角度。
-
-
-
-
-
-
-
-
-
搜索结果
74 条记录 (耗时 0.026 秒)
