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公开(公告)号：US06550445B2
公开(公告)日：2003-04-22
申请号：US10195306
申请日：2002-07-16
申请人： Kazuaki Umezono , Hiroyasu Uchida , Mikihito Fujii
发明人： Kazuaki Umezono , Hiroyasu Uchida , Mikihito Fujii
IPC分类号： F02B3100
CPC分类号： F02B31/085 , F02B2075/125 , F02D41/187 , F02D41/3029 , F02D2041/0015 , Y02T10/123 , Y02T10/146
摘要： A spark-ignition type 4-cycle direct injection engine is provided with a turbocharger for boosting intake air and an injector for directly injecting fuel to a combustion chamber within a cylinder, wherein in a &lgr;=1 region (II) and an enriched region (III) on the high-speed high-load side, fuel is injected during the intake stroke of the cylinder to attain a state of homogenous combustion. When the engine is in the high-speed side (specific region) of the enriched region (III), the air-fuel ratio A/F of the air-fuel mixture in the cylinder is controlled to become A/F≦13, the tumble flow T is strengthened by closing the TSCVs, and the opening degree of a wastegate valve of the turbocharger is controlled in order to increase the maximum boost pressure and compensate the drop in intake efficiency that is caused by closing the TSCVs. Thus, in the high-speed side of the enriched region (III), a maximum output of the engine is ensured and the dependability of the exhaust system is secured while the PM in the exhaust can be decreased.
摘要翻译： 火花点火型4循环直喷发动机设有用于增压进气的涡轮增压器和用于将燃料直接喷射到气缸内的燃烧室的喷射器，其中在lambd = 1区域（II）和富集区域 III）在高速高负荷侧，在气缸的进气冲程期间喷射燃料以达到均匀燃烧的状态。 当发动机处于富集区域（III）的高速侧（特定区域）时，气缸中的空气燃料混合物的空燃比A / F被控制为A / F <= 13， 通过关闭TSCV来加强翻转流T，并且控制涡轮增压器的废气门阀的开度，以便增加最大增压压力并补偿由关闭TSCV引起的进气效率的下降。 因此，在富集区域（III）的高速侧，确保发动机的最大输出，并且能够确保排气系统的可靠性，同时可以减少排气中的PM。
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公开(公告)号：US06684630B2
公开(公告)日：2004-02-03
申请号：US10107805
申请日：2002-03-28
申请人： Hiroyasu Uchida , Kazuaki Umezono , Mikihito Fujii
发明人： Hiroyasu Uchida , Kazuaki Umezono , Mikihito Fujii
IPC分类号： F01N300
CPC分类号： F02D41/024 , F02D37/02 , F02D41/405 , F02D43/00 , F02D2041/389 , Y02T10/26 , Y02T10/42 , Y02T10/44
摘要： A direct-injection, spark-ignition engine of the present invention includes a turbo-charging device which promotes the temperature rise or activation of the exhaust-gas purification catalyst disposed downstream of a turbine during cold start. During engine cold start, the fuel injection by the fuel injector is divided into a leading fuel injection performed during the latter half of the compression stroke, prior to the ignition timing, and a trailing fuel injection performed during the expansion stroke, after the ignition timing. The amount of the intake-air and the amount of the fuel injection are so controlled that the air-fuel ratio in the combustion chamber during the combustion of the fuel by the leading fuel injection (a leading air-fuel ratio) is within the range of 2
摘要翻译： 本发明的直喷式火花点火式发动机包括涡轮增压装置，其在冷启动期间促进设置在涡轮机下游的排气净化催化剂的升温或活化。 在发动机冷起动期间，燃料喷射器的燃料喷射被分为在点火正时之前在压缩行程的后半期间进行的先导燃料喷射，以及在点火正时之后在膨胀冲程期间执行的尾燃料喷射 。 控制进气量和燃料喷射量，使得通过前进燃料喷射（前导空燃比）在燃料燃烧期间燃烧室中的空燃比在该范围内 为2 <λ<3，燃料喷燃燃烧时燃料室内的空燃比（总空燃比）在1 <λ<2的范围内。 这样就可以通过在压缩行程中喷射的燃料的燃烧产生的热量和来自涡轮搅拌的未燃烧的HG的氧化来提高废气温度，以提高废气温度以促进排气的升温或活化 净化催化剂在涡轮下游。
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公开(公告)号：US08311724B2
公开(公告)日：2012-11-13
申请号：US12704122
申请日：2010-02-11
CPC分类号： F02D41/0007 , F01L1/344 , F01L13/0015 , F02D9/04 , F02D9/16 , F02D13/0219 , F02D13/0226 , F02D13/0261 , F02D41/0002 , F02D2041/001 , F02D2250/18 , F02D2250/21 , Y02T10/14 , Y02T10/144 , Y02T10/18
摘要： A valve overlap period is increased as a desired torque of an engine increases by advancing an opening timing of an intake valve at a rate greater than that of retarding a closing timing of an exhaust valve in a low engine-torque area in which the desired torque of the internal combustion engine is relatively low (step S16). The valve overlap period is increased as the desired torque of the engine increases by retarding the closing timing of the exhaust valve at a rate greater than that of advancing the opening timing of the intake valve in a high engine-torque area in which the desired torque of the internal combustion engine is relatively high (step S17). Accordingly, the drivability can be improved by obtaining the proper torque and the smooth torque curve in the wide driving area.
摘要翻译： 随着发动机的期望扭矩的增加，阀重叠周期增加，因为在低发动机 - 转矩区域中以大于延迟排气门的关闭正时的速率推进进气门的打开正时，其中期望扭矩 的内燃机相对较低（步骤S16）。 随着发动机的期望扭矩的增加，阀重叠周期增加，因为在高发动机扭矩区域中，通过将排气门的关闭正时以比进气门的打开正时大的速率延迟， 的内燃机相对较高（步骤S17）。 因此，可以通过在宽行驶区域中获得适当的扭矩和平滑的扭矩曲线来提高驾驶性能。
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公开(公告)号：US5161492A
公开(公告)日：1992-11-10
申请号：US624214
申请日：1990-12-10
IPC分类号： F02B27/00
CPC分类号： F02B27/006 , F02B27/008 , Y02T10/146
摘要： An intake system for a vehicle for delivering intake air through separate or discrete intake passages of the intake system into engine cylinders through discrete intake passages. A collector chamber and a resonator chamber connect with an upstream main intake passage and the discrete intake passages. The collector chamber communicates at one end with upstream ends of the discrete intake passages and at its another end, opposite to the one end, with the resonator chamber. The discrete intake passages are clustered or grouped together at their upstream ends and connected as a cluster to the collector chamber.
摘要翻译： 一种用于车辆的进气系统，其通过离散的进气通道将进入的空气通过进气系统的分离的或离散的进气通道输送到发动机气缸。 收集器室和谐振器室与上游主进气通道和离散的进气通道连接。 收集器室的一端与离散的进气通道的上游端连通，并且在另一端与谐振器腔室相通。 离散的进气通道在其上游端聚集或分组在一起并且以簇连接到收集器室。
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公开(公告)号：US07628015B2
公开(公告)日：2009-12-08
申请号：US11470843
申请日：2006-09-07
IPC分类号： F02B33/44
CPC分类号： F02B33/34 , F02B39/10 , F02D23/00 , F02D41/0007 , F02D2200/503 , Y02T10/144 , Y02T10/42
摘要： There is provided a method for controlling an electrically driven supercharger of an internal combustion engine. The method comprises operating the supercharger at a first speed during a first engine operating condition. The method further comprises operating the supercharger at a second speed during a second engine operating condition, the second speed being lower than the first speed and increasing as the capacity of the electric power source decreases.According to the method, during a transition from the second engine operating condition to the first engine operating condition, the speed of the supercharger is increased from the second speed to the first speed. At that time, the second speed is increased as the capacity of the electric power source decreases, and as a result, the supercharger speed increase that results from the transition may become smaller. Consequently, the inrush electric current from the electric power source to the electric motor may be reduced during the transition, thereby avoiding further degradation of the electric power source.
摘要翻译： 提供了一种用于控制内燃机的电动增压器的方法。 该方法包括在第一发动机运行状态期间以第一速度操作增压器。 该方法还包括在第二发动机运行状态期间以第二速度操作增压器，第二速度低于第一速度，并随着电力供应量的减小而增加。 根据该方法，在从第二发动机运转状态向第一发动机运转状态转变时，增压器的速度从第二速度增加到第一速度。 此时，随着电源的容量的减小，第二速度增加，结果，由转换引起的增压器速度增加可能变小。 因此，可以在转变期间从电源向电动机的浪涌电流减少，从而避免电源的进一步劣化。
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公开(公告)号：US20090094978A1
公开(公告)日：2009-04-16
申请号：US12247928
申请日：2008-10-08
IPC分类号： F02D23/00
CPC分类号： F02D9/04 , F01N13/107 , F01N2240/36 , F02B37/004 , F02B37/04 , F02B39/10 , F02D9/101 , F02D9/103 , F02D9/1035 , F02D9/1065 , F02D13/0219 , F02D13/0261 , Y02T10/18
摘要： An engine system with a turbocharger is provided. The system may include an exhaust manifold having plural independent exhaust passages, each of the exhaust passages being connected to an exhaust port of a corresponding engine cylinder. The system may further include a collective part formed by gathering said independent exhaust passages in said exhaust manifold or on a downstream side of said exhaust manifold. The system may further include an exhaust turbocharger connected to a downstream side of said collective part. The system may further include a variable exhaust valve for changing each passage cross-sectional area of said independent exhaust passage at an upstream side of said collective part. The system may further include a controller for controlling said variable exhaust valve, wherein said controller is configured to perform independent exhaust throttle control for reducing a passage cross-sectional area of at least one of said independent exhaust passages.
摘要翻译： 提供具有涡轮增压器的发动机系统。 该系统可以包括具有多个独立排气通道的排气歧管，每个排气通道连接到相应的发动机气缸的排气口。 该系统还可以包括通过将所述独立排气通道聚集在所述排气歧管中或在所述排气歧管的下游侧而形成的集体部件。 该系统还可以包括连接到所述集体部件的下游侧的排气涡轮增压器。 该系统还可以包括可变排气阀，用于在所述集体部件的上游侧改变所述独立排气通道的每个通道横截面积。 该系统还可以包括用于控制所述可变排气阀的控制器，其中所述控制器被配置为执行独立的排气节流控制，以减少所述独立排气通道中的至少一个的通道横截面面积。
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公开(公告)号：US08141357B2
公开(公告)日：2012-03-27
申请号：US12247928
申请日：2008-10-08
CPC分类号： F02D9/04 , F01N13/107 , F01N2240/36 , F02B37/004 , F02B37/04 , F02B39/10 , F02D9/101 , F02D9/103 , F02D9/1035 , F02D9/1065 , F02D13/0219 , F02D13/0261 , Y02T10/18
摘要： An engine system with a turbocharger is provided. The system may include an exhaust manifold having plural independent exhaust passages, each of the exhaust passages being connected to an exhaust port of a corresponding engine cylinder. The system may further include a collective part formed by gathering said independent exhaust passages in said exhaust manifold or on a downstream side of said exhaust manifold. The system may further include an exhaust turbocharger connected to a downstream side of said collective part. The system may further include a variable exhaust valve for changing each passage cross-sectional area of said independent exhaust passage at an upstream side of said collective part. The system may further include a controller for controlling said variable exhaust valve, wherein said controller is configured to perform independent exhaust throttle control for reducing a passage cross-sectional area of at least one of said independent exhaust passages.
摘要翻译： 提供具有涡轮增压器的发动机系统。 该系统可以包括具有多个独立排气通道的排气歧管，每个排气通道连接到相应的发动机气缸的排气口。 该系统还可以包括通过将所述独立排气通道聚集在所述排气歧管中或在所述排气歧管的下游侧而形成的集体部件。 该系统还可以包括连接到所述集体部件的下游侧的排气涡轮增压器。 该系统还可以包括可变排气阀，用于在所述集体部件的上游侧改变所述独立排气通道的每个通道横截面积。 该系统还可以包括用于控制所述可变排气阀的控制器，其中所述控制器被配置为执行独立的排气节流控制，以减少所述独立排气通道中的至少一个的通道横截面面积。
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公开(公告)号：US20070051349A1
公开(公告)日：2007-03-08
申请号：US11470843
申请日：2006-09-07
IPC分类号： F02B33/00
CPC分类号： F02B33/34 , F02B39/10 , F02D23/00 , F02D41/0007 , F02D2200/503 , Y02T10/144 , Y02T10/42
摘要： There is provided a method for controlling an electrically driven supercharger of an internal combustion engine. The method comprises operating the supercharger at a first speed during a first engine operating condition. The method further comprises operating the supercharger at a second speed during a second engine operating condition, the second speed being lower than the first speed and increasing as the capacity of the electric power source decreases. According to the method, during a transition from the second engine operating condition to the first engine operating condition, the speed of the supercharger is increased from the second speed to the first speed. At that time, the second speed is increased as the capacity of the electric power source decreases, and as a result, the supercharger speed increase that results from the transition may become smaller. Consequently, the inrush electric current from the electric power source to the electric motor may be reduced during the transition, thereby avoiding further degradation of the electric power source.
摘要翻译： 提供了一种用于控制内燃机的电动增压器的方法。 该方法包括在第一发动机运行状态期间以第一速度操作增压器。 该方法还包括在第二发动机运行状态期间以第二速度操作增压器，第二速度低于第一速度，并随着电力供应量的减小而增加。 根据该方法，在从第二发动机运转状态向第一发动机运转状态转变时，增压器的速度从第二速度增加到第一速度。 此时，随着电源的容量的减小，第二速度增加，结果，由转换引起的增压器速度增加可能变小。 因此，可以在转变期间从电源向电动机的浪涌电流减少，从而避免电源的进一步劣化。
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公开(公告)号：US06240724B1
公开(公告)日：2001-06-05
申请号：US09365722
申请日：1999-08-03
IPC分类号： F01N300
CPC分类号： F02D41/402 , F01N3/2006 , F02B2075/125 , F02D41/024 , F02D41/3023 , F02D41/401 , F02D2041/389 , F02M45/02 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要： A control device for a direct injection engine having a catalyst provided in an exhaust passage for converting exhaust gases and an injector for injecting fuel directly into a combustion chamber, includes a temperature state identifier for judging the temperature state of the catalyst, a load condition detector for sensing engine load conditions, and a fuel injection controller for controlling fuel injection from the injector. The fuel injection controller performs quick light-off control operation by causing the injector to inject fuel in one-time injection mode during a compression stroke in a specific low-load operating range of the engine when the catalyst is in its unheated state where its temperature is below its activation temperature, and switching the mode of fuel injection to intake-compression stroke split injection mode in a specific high-load operating range of the engine.
摘要翻译： 一种用于直接喷射发动机的控制装置，其具有设置在用于转换废气的排气通道中的催化剂和用于将燃料直接喷射到燃烧室中的喷射器，包括用于判断催化剂的温度状态的温度状态标识符，负载条件检测器 用于感测发动机负载条件，以及用于控制来自喷射器的燃料喷射的燃料喷射控制器。 燃料喷射控制器通过在发动机的特定低负荷运行范围内的压缩冲程期间使喷射器以一次喷射模式喷射燃料来执行快速熄灯控制操作，当催化剂处于其未加热状态时，其温度 低于其启动温度，并且在发动机的特定高负载运行范围内将燃料喷射模式切换到进气压缩冲程分流喷射模式。
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公开(公告)号：US5144918A
公开(公告)日：1992-09-08
申请号：US732125
申请日：1991-07-18
申请人： Toshimitsu Tanaka , Naoyuki Yamagata , Mitsuo Hitomi , Toshihiko Hattori , Masashi Marubara , Mikihito Fujii
发明人： Toshimitsu Tanaka , Naoyuki Yamagata , Mitsuo Hitomi , Toshihiko Hattori , Masashi Marubara , Mikihito Fujii
CPC分类号： F02M35/10131 , F02B27/006 , F02B27/0242 , F02B27/0284 , F02M27/00 , F02M35/10032 , F02M35/10052 , F02M35/10072 , F02B2075/1812 , F02B2075/1816 , F02B75/20 , Y02T10/146
摘要： Discrete intake passages communicating with respective cylinders of a multiple-cylinder in-line engine are merged into an integrated chamber at their upstream ends. The integrated chamber is disposed above the engine and extends substantially horizontally. Each discrete intake passage extends from the engine body, bends upward toward the integrated chamber and is connected to the downstream side end face of the integrated chamber. The discrete intake passages for the cylinders which are positioned relatively near to the integrated chamber are connected to the downstream side end face of the integrated chamber at an upper portion of the end face and the discrete intake passages for the cylinders which are positioned relatively far from the integrated chamber are connected to the downstream side end face of the integrated chamber at a lower portion of the end face.
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