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1. 发明授权

US08402749B2 Control method of spark-ignition engine and spark-ignition engine system 有权
标题翻译：火花点火发动机和火花点火发动机系统的控制方法
公开(公告)号：US08402749B2
公开(公告)日：2013-03-26
申请号：US12828032
申请日：2010-06-30
申请人： Masahisa Yamakawa , Takashi Youso , Kouhei Iwai , Shuji Oba
发明人： Masahisa Yamakawa , Takashi Youso , Kouhei Iwai , Shuji Oba
IPC分类号： F01N3/00
CPC分类号： F02D41/025 , F02D13/0234 , F02D41/0007 , F02D41/1475 , Y02T10/144 , Y02T10/18 , Y02T10/26
摘要： In a specified operating area including a low engine-speed and low engine-load area, an excess air ratio λ is set at a specified ratio which is two or greater and three or smaller and an ignition timing θig of a spark plug is set at a timing of MBT to provide the maximum torque as a normal combustion control (S4). In case a catalyst temperature Tc is lower than a predetermined first temperature T1 in this area, a control of retarding the ignition timing from the MBT timing and/or a control of decreasing the excess air ratio λ to a ration below the above-described ratio are executed (S6, S8, S9). Accordingly, the temperature of the catalyst can be prevented simply and effectively from decreasing excessively, maintaining combustion conditions to provide a properly high thermal efficiency.
摘要翻译：在包括低发动机转速和低发动机负载面积的指定操作区域中，过量空气比λ被设定为两个或更大和三个或更小的规定比率，火花塞的点火正时和ig 设置在MBT的定时以提供作为正常燃烧控制的最大扭矩（S4）。在该区域中催化剂温度Tc低于预定的第一温度T1的情况下，将从MBT定时延迟点火正时的控制和/或将过量空气比λ降低至低于上述比例的控制（S6，S8，S9）。因此，可以简单有效地防止催化剂的温度过度降低，保持燃烧条件以提供适当高的热效率。

2. 发明授权

US08459021B2 Method and apparatus for controlling supercharged engine 有权
标题翻译：控制增压发动机的方法和装置
公开(公告)号：US08459021B2
公开(公告)日：2013-06-11
申请号：US13012384
申请日：2011-01-24
申请人： Masahisa Yamakawa , Kouhei Iwai , Shuji Oba
发明人： Masahisa Yamakawa , Kouhei Iwai , Shuji Oba
IPC分类号： F02P3/06
CPC分类号： F02D41/0007 , F02B1/12 , F02D13/0207 , F02D15/00 , F02D41/006 , F02D41/3035 , F02D41/3041 , F02D41/402 , F02D2041/001 , F02D2200/101 , F02D2200/602 , Y02T10/144 , Y02T10/44
摘要： A supercharged engine has a geometric compression ratio ser to 16 or more and is designed to perform a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio at least in a low engine speed range. On a lower engine load side than a given engine load within an engine operating region at which the compression self-ignition combustion is performed, a fresh air amount is reduced and an effective compression ratio (ε′) is increased, as compared with a higher engine load side than the given engine load within the engine operating region, and, on the higher engine load side than the given engine load, a supercharging pressure based on a supercharger (25) is increased to increase the fresh air amount, and the effective compression ratio (ε′) is reduced, as compared with the lower engine load side than the given engine load. This makes it possible to perform the compression self-ignition combustion under a lean air-fuel ratio in a wider engine load range to effectively enhance engine thermal efficiency, while eliminating a need for an operation of forcedly raising/lowering a temperature of fresh air.
摘要翻译：增压发动机的几何压缩比为16以上，并且设计成在至少在低发动机转速范围内在比理论空燃比稀薄的空燃比下进行压缩自点燃燃烧。在比执行压缩自点火燃烧的发动机工作区域内的给定发动机负荷更低的发动机负荷侧，与较高的压缩自燃点相比，新鲜空气量减少并且有效压缩比（ε'）增加发动机负荷侧比发动机运转区域内的给定发动机负荷高，并且在比给定发动机负荷高的发动机负荷侧，增加基于增压器（25）的增压压力以增加新鲜空气量，并且有效与发动机负载侧相比，与给定的发动机负荷相比，压缩比（ε'）减小。这使得可以在更宽的发动机负载范围内在贫空燃比下进行压缩自点火燃烧，从而有效地提高发动机热效率，同时不需要强制升高/降低新鲜空气的温度。

3. 发明申请

US20120216776A1 CONTROL DEVICE OF SPARK-IGNITION GASOLINE ENGINE 有权
标题翻译：火花点火汽油发动机的控制装置
公开(公告)号：US20120216776A1
公开(公告)日：2012-08-30
申请号：US13368278
申请日：2012-02-07
申请人： Kazuhiro Nagatsu , Masahisa Yamakawa , Kouhei Iwai , Yoshihisa Nou , Noriyuki Ota , Kazutoyo Watanabe , Naoya Watanabe , Hiroyuki Kurita , Shuji Oba , Tatsuya Koga
发明人： Kazuhiro Nagatsu , Masahisa Yamakawa , Kouhei Iwai , Yoshihisa Nou , Noriyuki Ota , Kazutoyo Watanabe , Naoya Watanabe , Hiroyuki Kurita , Shuji Oba , Tatsuya Koga
IPC分类号： F02D43/00 , F02D41/04
CPC分类号： F02D41/3041 , F02B1/12 , F02B23/101 , F02B29/0418 , F02B29/0437 , F02D13/0234 , F02D13/0242 , F02D13/0273 , F02D41/0057 , F02D41/3836 , F02M26/01 , F02M26/25 , F02M26/28 , F02M26/47 , F02M35/10177 , F02M35/1038 , F02M35/10386 , Y02T10/125 , Y02T10/18 , Y02T10/47
摘要： A control device of a spark-ignition gasoline engine is provided. The control device includes a controller for operating the engine body by controlling at least a fuel injection valve, an ignition plug, and a fuel pressure variable mechanism. Depending on the engine load range, the controller sets the combustion mode to a compression-ignition mode or a spark-ignition mode. In each mode, the controller also controls the fuel pressure, and the timing of fuel injection and ignition. The controller may also performs external EGR control in each mode.
摘要翻译：提供火花点火汽油机的控制装置。控制装置包括控制器，用于通过至少控制燃料喷射阀，火花塞和燃料压力可变机构来操作发动机主体。根据发动机负载范围，控制器将燃烧模式设置为压缩点火模式或火花点火模式。在每种模式下，控制器还控制燃油压力，以及燃油喷射和点火的时间。控制器还可以在每种模式下执行外部EGR控制。

4. 发明授权

US08838364B2 Control device of spark-ignition gasoline engine 有权
标题翻译：火花点火汽油机的控制装置
公开(公告)号：US08838364B2
公开(公告)日：2014-09-16
申请号：US13368278
申请日：2012-02-07
申请人： Kazuhiro Nagatsu , Masahisa Yamakawa , Kouhei Iwai , Yoshihisa Nou , Noriyuki Ota , Kazutoyo Watanabe , Naoya Watanabe , Hiroyuki Kurita , Shuji Oba , Tatsuya Koga
发明人： Kazuhiro Nagatsu , Masahisa Yamakawa , Kouhei Iwai , Yoshihisa Nou , Noriyuki Ota , Kazutoyo Watanabe , Naoya Watanabe , Hiroyuki Kurita , Shuji Oba , Tatsuya Koga
IPC分类号： F02B1/12 , F02B23/10 , F02D41/30 , F02D13/02 , F02D41/00 , F02D41/38 , F02B29/04 , F02M25/07 , F02M35/10
CPC分类号： F02D41/3041 , F02B1/12 , F02B23/101 , F02B29/0418 , F02B29/0437 , F02D13/0234 , F02D13/0242 , F02D13/0273 , F02D41/0057 , F02D41/3836 , F02M26/01 , F02M26/25 , F02M26/28 , F02M26/47 , F02M35/10177 , F02M35/1038 , F02M35/10386 , Y02T10/125 , Y02T10/18 , Y02T10/47
摘要： A control device of a spark-ignition gasoline engine is provided. The control device includes a controller for operating the engine body by controlling at least a fuel injection valve, an ignition plug, and a fuel pressure variable mechanism. Depending on the engine load range, the controller sets the combustion mode to a compression-ignition mode or a spark-ignition mode. In each mode, the controller also controls the fuel pressure, and the timing of fuel injection and ignition. The controller may also performs external EGR control in each mode.
摘要翻译：提供火花点火汽油机的控制装置。控制装置包括控制器，用于通过至少控制燃料喷射阀，火花塞和燃料压力可变机构来操作发动机主体。根据发动机负载范围，控制器将燃烧模式设置为压缩点火模式或火花点火模式。在每种模式下，控制器还控制燃油压力，以及燃油喷射和点火的时间。控制器还可以在每种模式下执行外部EGR控制。

5. 发明授权

US08655572B2 Control device of spark-ignition gasoline engine 有权
标题翻译：火花点火汽油机的控制装置
公开(公告)号：US08655572B2
公开(公告)日：2014-02-18
申请号：US13368263
申请日：2012-02-07
申请人： Kouhei Iwai , Masahisa Yamakawa , Noriyuki Ota , Kazuhiro Nagatsu , Takashi Youso , Kazutoyo Watanabe , Hiroyuki Kurita , Naoya Watanabe , Takaaki Nagano , Shuji Oba
发明人： Kouhei Iwai , Masahisa Yamakawa , Noriyuki Ota , Kazuhiro Nagatsu , Takashi Youso , Kazutoyo Watanabe , Hiroyuki Kurita , Naoya Watanabe , Takaaki Nagano , Shuji Oba
IPC分类号： F02M69/54
CPC分类号： F02D41/0057 , F02D21/08 , F02D35/02 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/1441 , F02D41/1456 , F02D41/18 , F02D41/3023 , F02D41/3029 , F02D41/3041 , F02D41/3094 , F02D41/3836 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2200/021 , F02D2200/0406 , F02D2200/0414 , F02D2200/101 , F02D2200/602 , F02M26/23 , F02M45/02 , F02M63/0225 , F02M69/046 , F02P5/045 , F02P5/152 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller operates a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection mechanism to perform at least a fuel injection into the cylinder by a cylinder internal injection valve at a timing during a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing during the retard period and after the fuel injection.
摘要翻译：本公开提供了一种火花点火汽油发动机的控制装置。当发动机主体的运转状态处于低发动机转速范围内时，控制器操作燃油压力可变机构，使燃料压力在较低的发动机负荷范围内比低发动机负荷范围更高，控制器在高发动机负载范围，燃料喷射机构，在从压缩冲程的后期到膨胀冲程的早期阶段的延迟期间的时刻，通过气缸内部喷射阀至少执行燃料喷射到气缸中，并且控制器在高发动机负载范围内操作火花塞，以在延迟期间和燃料喷射之后的定时点燃。

6. 发明授权

US08783227B2 Engine control method and apparatus 有权
标题翻译：发动机控制方法和装置
公开(公告)号：US08783227B2
公开(公告)日：2014-07-22
申请号：US13012406
申请日：2011-01-24
申请人： Masahisa Yamakawa , Kouhei Iwai , Shuji Oba
发明人： Masahisa Yamakawa , Kouhei Iwai , Shuji Oba
IPC分类号： F02B3/06 , F02B3/08 , F02D35/02
CPC分类号： F02B3/06 , F02B3/08 , F02B29/0437 , F02B2075/125 , F02D13/0211 , F02D13/0238 , F02D13/0265 , F02D13/0269 , F02D15/04 , F02D35/023 , F02D35/026 , F02D41/0007 , F02D41/0057 , F02D41/006 , F02D41/3035 , F02M26/01 , Y02T10/142 , Y02T10/47
摘要： An engine is designed to allow a compression self-ignition combustion under an air-fuel ratio leaner than a stoichiometric air-fuel ratio to be performed at least in a partial-load range of the engine. Under a condition that an engine speed varies at a same load in an engine operating region of the compression self-ignition combustion, a compression end temperature Tx, which is an in-cylinder temperature just before an air-fuel mixture self-ignites, is controlled to be raised higher in a higher engine speed side than in a lower engine speed side. As one example of control for the compression end temperature Tx, an internal EGR amount is controlled to be increased larger in the higher engine speed side than in the lower engine speed side, to raise a compression initial temperature T0 which is an in-cylinder temperature at a start timing of a compression stroke. This makes it possible to perform the compression self-ignition combustion under a lean air-fuel ratio in a wider engine speed range to effectively enhance engine thermal efficiency.
摘要翻译：发动机被设计成允许至少在发动机的部分负荷范围内执行在比理论空燃比稀薄的空燃比下的压缩自点火燃烧。在压缩自点火燃烧的发动机运转区域内的发动机转速相同的负荷条件下，作为空燃混合气自燃之前的缸内温度的压缩端温度Tx为控制在较高的发动机转速侧比在较低的发动机转速侧升高。作为对压缩端温度Tx的控制的一个例子，在较高的发动机转速侧的内部EGR量被控制为比在较低的发动机转速侧更大，以提高作为缸内温度的压缩初始温度T0 在压缩冲程的开始时刻。这使得可以在更宽的发动机转速范围内以稀薄空燃比进行压缩自点火燃烧，以有效地提高发动机的热效率。

7. 发明授权

US08706382B2 Control device of spark-ignition gasoline engine 有权
标题翻译：火花点火汽油机的控制装置
公开(公告)号：US08706382B2
公开(公告)日：2014-04-22
申请号：US13368253
申请日：2012-02-07
申请人： Shuji Oba , Kouhei Iwai , Kazuhiro Nagatsu , Masahisa Yamakawa , Noriyuki Ota , Naoya Watanabe , Hiroyuki Kurita , Tatsuya Fujikawa , Kenji Uchida , Daisuke Asaji , Takaaki Nagano
发明人： Shuji Oba , Kouhei Iwai , Kazuhiro Nagatsu , Masahisa Yamakawa , Noriyuki Ota , Naoya Watanabe , Hiroyuki Kurita , Tatsuya Fujikawa , Kenji Uchida , Daisuke Asaji , Takaaki Nagano
IPC分类号： F02D41/40
CPC分类号： F02D41/401 , F02D37/02 , F02D41/005 , F02D41/3035 , F02D41/3064 , F02D41/3094 , F02D41/3836 , F02D41/402 , F02D2041/001 , F02D2200/101 , F02M41/00 , F02M63/0225 , Y02T10/44 , Y02T10/47
摘要： The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller controls a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection valve to perform a fuel injection at least at a timing that is more retarded than an injection timing of a fuel within the low engine load range and is within a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing within the retard period and further after the fuel injection.
摘要翻译：本公开提供了一种火花点火汽油发动机的控制装置。当发动机机体的运转状态处于低发动机转速范围内时，控制器控制燃油压力可变机构，使燃料压力在低发动机负荷范围内与低发动机负荷范围相比较高，控制器在高发动机负载范围，燃料喷射阀，至少在比低发动机负载范围内的燃料的喷射正时更延迟的时刻执行燃料喷射，并且处于从压缩的后期阶段的延迟时段内行程到膨胀冲程的早期阶段，并且控制器在高发动机负载范围内操作火花塞，以在延迟时段内以及进一步在燃料喷射之后的定时点火。

8. 发明申请

US20120216775A1 CONTROL DEVICE OF SPARK-IGNITION GASOLINE ENGINE 有权
标题翻译：火花点火汽油发动机的控制装置
公开(公告)号：US20120216775A1
公开(公告)日：2012-08-30
申请号：US13368263
申请日：2012-02-07
申请人： Kouhei Iwai , Masahisa Yamakawa , Noriyuki Ota , Kazuhiro Nagatsu , Takashi Youso , Kazutoyo Watanabe , Hiroyuki Kurita , Naoya Watanabe , Takaaki Nagano , Shuji Oba
发明人： Kouhei Iwai , Masahisa Yamakawa , Noriyuki Ota , Kazuhiro Nagatsu , Takashi Youso , Kazutoyo Watanabe , Hiroyuki Kurita , Naoya Watanabe , Takaaki Nagano , Shuji Oba
IPC分类号： F02D41/04 , F02B5/02
CPC分类号： F02D41/0057 , F02D21/08 , F02D35/02 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/1441 , F02D41/1456 , F02D41/18 , F02D41/3023 , F02D41/3029 , F02D41/3041 , F02D41/3094 , F02D41/3836 , F02D41/401 , F02D41/402 , F02D2041/001 , F02D2200/021 , F02D2200/0406 , F02D2200/0414 , F02D2200/101 , F02D2200/602 , F02M26/23 , F02M45/02 , F02M63/0225 , F02M69/046 , F02P5/045 , F02P5/152 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller operates a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection mechanism to perform at least a fuel injection into the cylinder by a cylinder internal injection valve at a timing during a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing during the retard period and after the fuel injection.
摘要翻译：本公开提供了一种火花点火汽油发动机的控制装置。当发动机主体的运转状态处于低发动机转速范围内时，控制器操作燃油压力可变机构，使燃料压力在较低的发动机负荷范围内比低发动机负荷范围更高，控制器在高发动机负载范围，燃料喷射机构，在从压缩冲程的后期到膨胀冲程的早期阶段的延迟期间的时刻，通过气缸内部喷射阀至少执行燃料喷射到气缸中，并且控制器在高发动机负载范围内操作火花塞，以在延迟期间和燃料喷射之后的定时点燃。

9. 发明申请

US20120216774A1 CONTROL DEVICE OF SPARK-IGNITION GASOLINE ENGINE 有权
标题翻译：火花点火汽油发动机的控制装置
公开(公告)号：US20120216774A1
公开(公告)日：2012-08-30
申请号：US13368253
申请日：2012-02-07
申请人： Shuji Oba , Kouhei Iwai , Kazuhiro Nagatsu , Masahisa Yamakawa , Noriyuki Ota , Naoya Watanabe , Hiroyuki Kurita , Tatsuya Fujikawa , Kenji Uchida , Daisuke Asaji , Takaaki Nagano
发明人： Shuji Oba , Kouhei Iwai , Kazuhiro Nagatsu , Masahisa Yamakawa , Noriyuki Ota , Naoya Watanabe , Hiroyuki Kurita , Tatsuya Fujikawa , Kenji Uchida , Daisuke Asaji , Takaaki Nagano
IPC分类号： F02D41/04 , F02B5/02
CPC分类号： F02D41/401 , F02D37/02 , F02D41/005 , F02D41/3035 , F02D41/3064 , F02D41/3094 , F02D41/3836 , F02D41/402 , F02D2041/001 , F02D2200/101 , F02M41/00 , F02M63/0225 , Y02T10/44 , Y02T10/47
摘要： The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller controls a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection valve to perform a fuel injection at least at a timing that is more retarded than an injection timing of a fuel within the low engine load range and is within a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing within the retard period and further after the fuel injection.
摘要翻译：本公开提供了一种火花点火汽油发动机的控制装置。当发动机机体的运转状态处于低发动机转速范围内时，控制器控制燃油压力可变机构，使燃料压力在低发动机负荷范围内与低发动机负荷范围相比较高，控制器在高发动机负载范围，燃料喷射阀，至少在比低发动机负载范围内的燃料的喷射正时更延迟的时刻执行燃料喷射，并且处于从压缩的后期阶段的延迟时段内行程到膨胀冲程的早期阶段，并且控制器在高发动机负载范围内操作火花塞，以在延迟时段内以及进一步在燃料喷射之后的定时点火。

10. 发明授权

US09650984B2 Control system for gasoline engine 有权
公开(公告)号：US09650984B2
公开(公告)日：2017-05-16
申请号：US13634796
申请日：2011-03-30
申请人： Kazuhiro Nagatsu , Masatoshi Hidaka , Takashi Kaminaga , Masahisa Yamakawa
发明人： Kazuhiro Nagatsu , Masatoshi Hidaka , Takashi Kaminaga , Masahisa Yamakawa
IPC分类号： F02D41/30 , F02D13/02 , F02D41/02 , F02D41/40 , F02D41/00 , F02D41/14
CPC分类号： F02D41/3035 , F02D13/0265 , F02D41/006 , F02D41/0245 , F02D41/1446 , F02D41/405 , F02D2041/001 , Y02T10/128 , Y02T10/18 , Y02T10/26 , Y02T10/44
摘要： When a specific condition requiring a rise in exhaust gas temperature is satisfied, a required fuel amount to be injected from an injector (21) is injected in a split manner, such that the fuel injection is divided to: a main injection (X1) to be initiated a given period before a compression top dead center; an auxiliary injection (X2) to be initiated after initiation of auto-ignited combustion of an air-fuel mixture consisting of air and the fuel injected by the main injection (X1) and before an assumed peak timing (Pk′) of a heat release rate (RH) from the combustion based on the main injection (X1); and a post injection (X3) to be initiated after the assumed peak timing (Pk′) and before completion of combustion based on the main injection (X1) and the auxiliary injection (X2). This makes it possible to raise an exhaust gas temperature while sufficiently ensuring auto-ignitability and fuel economy performance.

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