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公开(公告)号：US09506412B2
公开(公告)日：2016-11-29
申请号：US14355045
申请日：2011-11-02
CPC分类号： F02D41/003 , F01M13/00 , F02D19/084 , F02D41/0005 , F02D41/123 , F02D2041/001 , F02D2250/08 , F02D2250/11 , F02M25/06 , Y02T10/36 , Y02T10/42
摘要： It is an object of this invention to restrain blow-by gas from reaching a catalyst during fuel cutoff, and protect the catalyst while coping with an increase in oil dilution amount resulting from the use of alcohol fuel, in an internal combustion engine that uses the alcohol fuel. An engine is equipped with a PCV mechanism that introduces blow-by gas in a crankcase into an intake system. Besides, when fuel cutoff is executed with the PCV mechanism in operation, an opening degree of a throttle valve during fuel cutoff is set on the basis of an oil dilution amount in lubricating oil. Thus, the throttle opening degree during fuel cutoff is adjusted in accordance with a generation amount of blow-by gas, so that an intake negative pressure can be appropriately reduced. Accordingly, during fuel cutoff, the amount of blow-by gas that is sucked out from the crankcase due to the intake negative pressure and introduced into the intake system can be held small.
摘要翻译： 本发明的一个目的是在燃料切断期间抑制窜气气体到达催化剂，并且在应用使用醇燃料的内燃机中由于使用醇燃料引起的油稀释量的增加的同时保护催化剂 酒精燃料。 发动机配备有PCV机构，其将曲轴箱中的窜气引入进气系统。 此外，当在运行中的PCV机构执行燃油切断时，基于润滑油中的油稀释量来设定燃料切断期间的节气门的开度。 因此，根据窜气的产生量调节燃料切断期间的节气门开度，能够适当地减小进气负压。 因此，在燃料切断期间，可以将由于进气负压而被引入到进气系统中的从曲轴箱吸出的窜气的量保持较小。
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公开(公告)号：US09249740B2
公开(公告)日：2016-02-02
申请号：US14383963
申请日：2012-03-22
IPC分类号： F01N3/00 , F02D13/02 , F02D17/00 , F02D15/00 , F02D19/08 , F02D41/02 , F02D41/12 , F01N3/20 , F02B75/12 , F02D41/00
CPC分类号： F02D13/0203 , F01N3/2006 , F02B2075/125 , F02D13/0215 , F02D15/00 , F02D17/00 , F02D19/084 , F02D19/087 , F02D41/0245 , F02D41/123 , F02D41/126 , F02D2041/001 , F02D2200/021 , F02D2200/0802 , Y02T10/12 , Y02T10/18 , Y02T10/26 , Y02T10/36
摘要： An engine includes variable valve mechanisms and a variable compression ratio mechanism. An ECU executes temperature balance control when a fuel-cut operation is executed. In the temperature balance control, valve opening characteristics of an exhaust valve are controlled based on a magnitude relation between an actual catalyst temperature and a target catalyst temperature and a magnitude relation between a water temperature and a required cylinder wall temperature. When executing a fuel-cut operation, it is thereby possible to control both the actual catalyst temperature and the water temperature in a well-balanced manner so that the actual catalyst temperature falls within a temperature range suitable for operation of the catalysts, and the water temperature becomes close to the required cylinder wall temperature.
摘要翻译： 发动机包括可变气门机构和可变压缩比机构。 当执行燃料切断操作时，ECU执行温度平衡控制。 在温度平衡控制中，基于实际催化剂温度和目标催化剂温度之间的大小关系以及水温与所需的气缸壁温度之间的大小关系来控制排气门的开阀特性。 在进行燃料切断动作的情况下，能够以均衡的方式控制实际的催化剂温度和水温，使得实际的催化剂温度落在适合于催化剂的运转的温度范围内， 温度变得接近所需的气缸壁温度。
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公开(公告)号：US20140303875A1
公开(公告)日：2014-10-09
申请号：US14355045
申请日：2011-11-02
IPC分类号： F02D41/00
CPC分类号： F02D41/003 , F01M13/00 , F02D19/084 , F02D41/0005 , F02D41/123 , F02D2041/001 , F02D2250/08 , F02D2250/11 , F02M25/06 , Y02T10/36 , Y02T10/42
摘要： It is an object of this invention to restrain blow-by gas from reaching a catalyst during fuel cutoff, and protect the catalyst while coping with an increase in oil dilution amount resulting from the use of alcohol fuel, in an internal combustion engine that uses the alcohol fuel. An engine is equipped with a PCV mechanism that introduces blow-by gas in a crankcase into an intake system. Besides, when fuel cutoff is executed with the PCV mechanism in operation, an opening degree of a throttle valve during fuel cutoff is set on the basis of an oil dilution amount in lubricating oil. Thus, the throttle opening degree during fuel cutoff is adjusted in accordance with a generation amount of blow-by gas, so that an intake negative pressure can be appropriately reduced. Accordingly, during fuel cutoff, the amount of blow-by gas that is sucked out from the crankcase due to the intake negative pressure and introduced into the intake system can be held small.
摘要翻译： 本发明的一个目的是在燃料切断期间抑制窜气气体到达催化剂，并且在应用使用醇燃料的内燃机中由于使用醇燃料引起的油稀释量的增加的同时保护催化剂 酒精燃料。 发动机配备有PCV机构，其将曲轴箱中的窜气引入进气系统。 此外，当在运行中的PCV机构执行燃油切断时，基于润滑油中的油稀释量来设定燃料切断期间的节气门的开度。 因此，根据窜气的产生量调节燃料切断期间的节气门开度，能够适当地减小进气负压。 因此，在燃料切断期间，可以将由于进气负压而被引入到进气系统中的从曲轴箱吸出的窜气的量保持较小。
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公开(公告)号：US20150152793A1
公开(公告)日：2015-06-04
申请号：US14383963
申请日：2012-03-22
CPC分类号： F02D13/0203 , F01N3/2006 , F02B2075/125 , F02D13/0215 , F02D15/00 , F02D17/00 , F02D19/084 , F02D19/087 , F02D41/0245 , F02D41/123 , F02D41/126 , F02D2041/001 , F02D2200/021 , F02D2200/0802 , Y02T10/12 , Y02T10/18 , Y02T10/26 , Y02T10/36
摘要： An engine includes variable valve mechanisms and a variable compression ratio mechanism. An ECU executes temperature balance control when a fuel-cut operation is executed. In the temperature balance control, valve opening characteristics of an exhaust valve are controlled based on a magnitude relation between an actual catalyst temperature and a target catalyst temperature and a magnitude relation between a water temperature and a required cylinder wall temperature. When executing a fuel-cut operation, it is thereby possible to control both the actual catalyst temperature and the water temperature in a well-balanced manner so that the actual catalyst temperature falls within a temperature range suitable for operation of the catalysts, and the water temperature becomes close to the required cylinder wall temperature.
摘要翻译： 发动机包括可变气门机构和可变压缩比机构。 当执行燃料切断操作时，ECU执行温度平衡控制。 在温度平衡控制中，基于实际催化剂温度和目标催化剂温度之间的大小关系以及水温与所需的气缸壁温度之间的大小关系来控制排气门的开阀特性。 在进行燃料切断动作的情况下，能够以均衡的方式控制实际的催化剂温度和水温，使得实际的催化剂温度落在适合于催化剂的运转的温度范围内， 温度变得接近所需的气缸壁温度。
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5.发明申请公开(公告)号：US20140058648A1
公开(公告)日：2014-02-27
申请号：US14006152
申请日：2011-05-10
IPC分类号： F02M25/08
CPC分类号： F02M25/08 , F02D13/0234 , F02D19/084 , F02D41/0025 , F02M25/0854 , F02M25/089 , Y02T10/18 , Y02T10/36
摘要： In an FFV (flexible fuel vehicle) on which an internal-combustion engine using alcohol blended fuel in mounted, the remaining amount of fuel vapor presumed to remain in a canister in accordance with a usual purge processing is presumed based on an alcohol concentration in the alcohol blended fuel. According to this remaining amount, the size of the tank side channel which is a channel in a canister near the connection section with a connection pathway (tank line) with a fuel tank is adjusted by a canister throttle control means, and/or, the timing of opening and closing of an intake valve is changed by a variable valve timing mechanism. Thereby, the desorption rate (the amount of desorption) of fuel vapor from adsorption material in a canister is adjusted, and the concentration of the fuel included in purge gas is adjusted. As a result, even when the change of the remaining amount of the fuel vapor adsorbed by the adsorption material in the canister and/or the uneven concentration distribution of an alcohol component within the canister occur, the accuracy of an air/fuel ratio control in the FFV can be raised, and the discharge of a toxic substance can be suppressed effectively.
摘要翻译： 在其中安装有使用醇混合燃料的内燃机的FFV（柔性燃料车辆）中，根据通常的清洗处理推定残留在罐中的燃料蒸汽的剩余量是基于在 酒精混合燃料。 根据该剩余量，通过具有燃料箱的连接路径（油罐管线）的连接部附近的罐中的槽的槽侧槽的尺寸由罐节流控制装置调节，和/或 通过可变气门正时机构改变进气门的打开和关闭的时间。 由此，调节来自罐内的吸附材料的燃料蒸气的解吸速度（解吸量），调节吹扫气体中所含的燃料浓度。 结果，即使当罐内的吸附材料吸附的燃料蒸汽的剩余量的变化和/或罐内的醇成分的不均匀浓度分布发生时，也能够实现空气/燃料比控制的精度 可以提高FFV，能够有效地抑制有毒物质的排出。
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6.发明授权Purge method of canister in FFV, and purge mechanism of canister in FFV using the method 有权使用FFV中罐的吹扫方法和FFV中罐的吹扫机理公开(公告)号：US09206770B2
公开(公告)日：2015-12-08
申请号：US14006152
申请日：2011-05-10
CPC分类号： F02M25/08 , F02D13/0234 , F02D19/084 , F02D41/0025 , F02M25/0854 , F02M25/089 , Y02T10/18 , Y02T10/36
摘要： In an FFV (flexible fuel vehicle) on which an internal-combustion engine using alcohol blended fuel in mounted, the remaining amount of fuel vapor presumed to remain in a canister in accordance with a usual purge processing is presumed based on an alcohol concentration in the alcohol blended fuel. According to this remaining amount, the size of the tank side channel which is a channel in a canister near the connection section with a connection pathway (tank line) with a fuel tank is adjusted by a canister throttle control means, and/or, the timing of opening and closing of an intake valve is changed by a variable valve timing mechanism. Thereby, the desorption rate (the amount of desorption) of fuel vapor from adsorption material in a canister is adjusted, and the concentration of the fuel included in purge gas is adjusted. As a result, even when the change of the remaining amount of the fuel vapor adsorbed by the adsorption material in the canister and/or the uneven concentration distribution of an alcohol component within the canister occur, the accuracy of an air/fuel ratio control in the FFV can be raised, and the discharge of a toxic substance can be suppressed effectively.
摘要翻译： 在其中安装有使用醇混合燃料的内燃机的FFV（柔性燃料车辆）中，根据通常的清洗处理推定残留在罐中的燃料蒸汽的剩余量是基于在 酒精混合燃料。 根据该剩余量，通过具有燃料箱的连接路径（油罐管线）的连接部附近的罐中的槽的槽侧槽的尺寸由罐节流控制装置调节，和/或 通过可变气门正时机构改变进气门的打开和关闭的时间。 由此，调节来自罐内的吸附材料的燃料蒸气的解吸速度（解吸量），调节吹扫气体中所含的燃料浓度。 结果，即使当罐内的吸附材料吸附的燃料蒸汽的剩余量的变化和/或罐内的醇成分的不均匀浓度分布发生时，也能够实现空气/燃料比控制的精度 可以提高FFV，能够有效地抑制有毒物质的排出。
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公开(公告)号：US20140158086A1
公开(公告)日：2014-06-12
申请号：US14001610
申请日：2011-08-29
IPC分类号： F02B17/00
CPC分类号： F02B17/005 , F02D13/0207 , F02D13/0219 , F02D19/0689 , F02D19/0692 , F02D19/084 , F02D19/088 , F02D35/02 , F02D41/0025 , F02D41/006 , F02D41/025 , F02D41/064 , F02D41/3094 , F02D41/405 , F02D2041/001 , F02D2200/0611 , Y02T10/18 , Y02T10/26 , Y02T10/36 , Y02T10/44 , Y02T10/47
摘要： When alcohol-blended fuel is supplied to an internal-combustion engine, the magnitude of alcohol concentration (more particularly, ethanol concentration Cetha) is judged (Step 1005) and, based on this judgment, the magnitude of operational status temperature (more particularly, cooling water temperature THW) is judged (Step 1015). Then, when the alcohol concentration is large and the operational status temperature is low, generation of an intermediate product which is an oxide of alcohol contained in the alcohol-blended fuel in an unburnt state after main injection and alcohol contained in the alcohol-blended fuel in an unburnt state after post injection (more particularly, aldehyde) is promoted, and the generated intermediate product is trapped in an intake passage by making an intake valve into an opened state in an exhaust stroke of the internal-combustion engine (Step 1055).
摘要翻译： 当向内燃机供给醇混合燃料时，判断酒精浓度（更特别是乙醇浓度Cetha）的大小（步骤1005），根据该判断，可以将工作状态温度的大小 冷却水温度THW）（步骤1015）。 然后，当醇浓度大并且操作状态温度低时，产生作为主要注射后未燃烧状态的醇混合燃料中所含醇的中间产物的中间产物和包含在醇混合燃料中的醇 通过在内燃机的排气冲程中使进气阀处于打开状态，在后喷射（更具体地说是醛）中的未燃烧状态被促进，并且产生的中间产物被捕获在进气通道中（步骤1055） 。
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公开(公告)号：US09399945B2
公开(公告)日：2016-07-26
申请号：US14001610
申请日：2011-08-29
IPC分类号： F02B17/00 , F02D13/02 , F02D19/08 , F02D41/02 , F02D41/40 , F02D35/02 , F02D41/00 , F02D41/06 , F02D41/30 , F02D19/06
CPC分类号： F02B17/005 , F02D13/0207 , F02D13/0219 , F02D19/0689 , F02D19/0692 , F02D19/084 , F02D19/088 , F02D35/02 , F02D41/0025 , F02D41/006 , F02D41/025 , F02D41/064 , F02D41/3094 , F02D41/405 , F02D2041/001 , F02D2200/0611 , Y02T10/18 , Y02T10/26 , Y02T10/36 , Y02T10/44 , Y02T10/47
摘要： When alcohol-blended fuel is supplied to an internal-combustion engine, the magnitude of alcohol concentration (more particularly, ethanol concentration Cetha) is judged (Step 1005) and, based on this judgment, the magnitude of operational status temperature (more particularly, cooling water temperature THW) is judged (Step 1015). Then, when the alcohol concentration is large and the operational status temperature is low, generation of an intermediate product which is an oxide of alcohol contained in the alcohol-blended fuel in an unburnt state after main injection and alcohol contained in the alcohol-blended fuel in an unburnt state after post injection (more particularly, aldehyde) is promoted, and the generated intermediate product is trapped in an intake passage by making an intake valve into an opened state in an exhaust stroke of the internal-combustion engine (Step 1055).
摘要翻译： 当向内燃机供给醇混合燃料时，判断酒精浓度（更特别是乙醇浓度Cetha）的大小（步骤1005），根据该判断，可以将工作状态温度的大小 冷却水温度THW）（步骤1015）。 然后，当醇浓度大并且操作状态温度低时，产生作为主要注射后未燃烧状态的醇混合燃料中所含醇的中间产物的中间产物和包含在醇混合燃料中的醇 通过在内燃机的排气冲程中使进气阀处于打开状态，在后喷射（更具体地说是醛）中的未燃烧状态被促进，并且产生的中间产物被捕获在进气通道中（步骤1055） 。
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公开(公告)号：US20140318501A1
公开(公告)日：2014-10-30
申请号：US14363167
申请日：2011-12-08
IPC分类号： F02D41/30
CPC分类号： F02D41/30 , F02D19/061 , F02D19/0689 , F02D19/0692 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/008 , F02D41/047 , F02D41/3094 , F02D2200/0611 , Y02T10/36
摘要： An objective of the present invention is to stabilize the fuel injection amount for each cylinder and to execute fuel injection control accurately in a single-pressure-feed dual-injection type alcohol fuel injection system. An engine includes two injection valves and and a single-pressure-feed dual-injection type fuel supply system. The fuel supply system is configured such that fuel is injected sequentially in two cylinders during the pressure-feed-interval period from the execution of one fuel pressure-feed operation to the execution of the next fuel pressure-feed operation. If the alcohol concentration in the fuel is higher than a predetermined determination value γ at a startup operation time, an ECU executes only a cylinder injection for the first of the two cylinders described above, and executes both an intake passage injection and a cylinder injection for the second cylinder. Thus, even if the fuel pressure decreases due to the fuel injection for the first cylinder, the required fuel injection amount can be reserved for the second cylinder.
摘要翻译： 本发明的目的是稳定每个气缸的燃料喷射量，并且在单压进料双注射型酒精燃料喷射系统中精确地执行燃料喷射控制。 发动机包括两个喷射阀和一个单进料双注射型燃料供应系统。 燃料供给系统被构造成使得在从执行一个燃料加压操作到执行下一次燃料加压操作的压力进给间隔期间，将燃料依次注入两个气缸中。 如果燃料中的酒精浓度高于启动操作时间的预定判定值γ，则ECU仅执行上述两个气缸中的第一个气缸的气缸喷射，并且执行进气通道喷射和气缸喷射 第二缸。 因此，即使燃料压力由于第一气缸的燃料喷射而降低，也可以为第二气缸保留所需的燃料喷射量。
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公开(公告)号：US20140216394A1
公开(公告)日：2014-08-07
申请号：US14241230
申请日：2011-08-29
IPC分类号： F02B17/00
CPC分类号： F02D19/084 , F02B17/005 , F02D13/0223 , F02D13/0273 , F02D19/085 , F02D19/087 , F02D41/3094 , F02D41/405 , F02D2200/0611 , Y02T10/18 , Y02T10/36
摘要： When an alcohol mixed fuel is supplied to an internal combustion engine, the magnitude of the alcohol concentration (more specifically, ethanol concentration Cetha) is determined (step 1005), and the magnitude of an operation state temperature (more specifically, cooling water temperature THW) is determined on the basis of said determination (step 1015). When the alcohol concentration is high and the operation state temperature is low, the generation of intermediate products (more specifically, aldehydes), which are alcohol oxides contained in unburned alcohol mixed fuel, is promoted, and the intermediate products generated are trapped in an intake passage by opening an intake valve in the expansion stroke of the internal combustion engine (step 1055).
摘要翻译： 当向内燃机供应醇混合燃料时，确定酒精浓度（更具体地，乙醇浓度Cetha）的大小（步骤1005），并且操作状态温度（更具体地说，冷却水温度THW ）是基于所述确定确定的（步骤1015）。 当醇浓度高且操作状态温度低时，促进未燃烧酒精混合燃料中含有醇氧化物的中间产物（更具体地说是醛）的产生，产生的中间产物被捕获在摄入 通过在内燃机的膨胀冲程中打开进气阀（步骤1055）。
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