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    • 1. 发明申请
    • CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
    • 内燃机的控制装置
    • US20100037595A1
    • 2010-02-18
    • US12532846
    • 2008-03-14
    • Naoya KanekoShigeki MiyashitaKenji Harima
    • Naoya KanekoShigeki MiyashitaKenji Harima
    • F02D43/00F01N3/10F01N3/00
    • F02D41/028F01N3/0878F01N3/0885F01N13/009F01N13/011F01N13/107F01N2430/02F01N2430/06F02D13/0242F02D13/0284F02D41/0082F02D41/123F02D2041/0012Y02T10/18Y02T10/20
    • The control device of the internal combustion engine appropriately controls plural exhaust valves to effectively perform sulfur poisoning recovery in an exhaust gas purifying catalyst. The control device controls the internal combustion engine which performs lean burn. The exhaust system of the internal combustion engine includes: first exhaust valves and second exhaust valves provided in each of the plural cylinders; a first exhaust passage communicating with the first exhaust valves; a second exhaust passage communicating with the second exhaust valves; a first exhaust gas purifying catalyst provided at least one of the first exhaust passage and the second exhaust passage; and a second exhaust gas purifying catalyst provided on an exhaust passage downstream of a junction of the first exhaust passage and the second exhaust passage. The control means controls the exhaust valves such that an effect of rich combustion occurs more to the second exhaust gas purifying catalyst than to the first exhaust gas purifying catalyst, when performing rich combustion. By this, the consumption of the exhaust gas in the first exhaust gas purifying catalyst can be suppressed, and the temperature of the second exhaust gas purifying catalyst can be effectively risen. Therefore, the sulfur poisoning recovery and the like can be effectively performed.
    • 内燃机的控制装置适当地控制多个排气阀,以有效地进行排气净化催化剂中的硫中毒回收。 控制装置控制进行稀燃的内燃机。 内燃机的排气系统包括:设置在多个气缸中的第一排气阀和第二排气阀; 与所述第一排气阀连通的第一排气通路; 与第二排气阀连通的第二排气通道; 第一废气净化催化剂,其设置有第一排气通道和第二排气通道中的至少一个; 以及第二排气净化催化剂,其设置在第一排气通路和第二排气通路的接合处下游的排气通路上。 当进行丰富的燃烧时,控制装置控制排气门,使得与第一排气净化催化剂相比,富燃的作用比第二废气净化催化剂更多。 由此,能够抑制第一排气净化催化剂中的排气的消耗,能够有效地提高第二排气净化催化剂的温度。 因此,能够有效地进行硫中毒回收等。
    • 2. 发明授权
    • Control device of an internal combustion engine
    • 内燃机的控制装置
    • US08225594B2
    • 2012-07-24
    • US12532846
    • 2008-03-14
    • Naoya KanekoShigeki MiyashitaKenji Harima
    • Naoya KanekoShigeki MiyashitaKenji Harima
    • F01N3/00
    • F02D41/028F01N3/0878F01N3/0885F01N13/009F01N13/011F01N13/107F01N2430/02F01N2430/06F02D13/0242F02D13/0284F02D41/0082F02D41/123F02D2041/0012Y02T10/18Y02T10/20
    • The control device of the internal combustion engine appropriately controls plural exhaust valves to effectively perform sulfur poisoning recovery in an exhaust gas purifying catalyst. The control device controls the internal combustion engine which performs lean burn. The exhaust system of the internal combustion engine includes: first exhaust valves and second exhaust valves provided in each of the plural cylinders; a first exhaust passage communicating with the first exhaust valves; a second exhaust passage communicating with the second exhaust valves; a first exhaust gas purifying catalyst provided at least one of the first exhaust passage and the second exhaust passage; and a second exhaust gas purifying catalyst provided on an exhaust passage downstream of a junction of the first exhaust passage and the second exhaust passage. The control means controls the exhaust valves such that an effect of rich combustion occurs more to the second exhaust gas purifying catalyst than to the first exhaust gas purifying catalyst, when performing rich combustion. By this, the consumption of the exhaust gas in the first exhaust gas purifying catalyst can be suppressed, and the temperature of the second exhaust gas purifying catalyst can be effectively risen. Therefore, the sulfur poisoning recovery and the like can be effectively performed.
    • 内燃机的控制装置适当地控制多个排气阀,以有效地进行排气净化催化剂中的硫中毒回收。 控制装置控制进行稀燃的内燃机。 内燃机的排气系统包括:设置在多个气缸中的第一排气阀和第二排气阀; 与所述第一排气阀连通的第一排气通路; 与第二排气阀连通的第二排气通道; 第一废气净化催化剂,其设置有第一排气通道和第二排气通道中的至少一个; 以及第二排气净化催化剂,其设置在第一排气通路和第二排气通路的接合处下游的排气通路上。 当进行丰富的燃烧时,控制装置控制排气门,使得与第一排气净化催化剂相比,富燃的作用比第二废气净化催化剂更多。 由此,能够抑制第一排气净化催化剂中的排气的消耗,能够有效地提高第二排气净化催化剂的温度。 因此,能够有效地进行硫中毒回收等。
    • 5. 发明申请
    • Exhaust Gas Control Apparatus of an Internal Combustion Engine
    • 内燃机排气控制装置
    • US20090320813A1
    • 2009-12-31
    • US12086751
    • 2007-06-08
    • Kenji HarimaShigeki Miyashita
    • Kenji HarimaShigeki Miyashita
    • F02D41/00F01N3/10F01N9/00
    • F02D9/04F01N3/0842F01N3/0885F01N3/2053F01N11/002F01N13/009F01N13/011F01N13/107F01N2240/36F02B37/18F02D41/0007F02D41/0082F02D41/0235Y02T10/144Y02T10/47
    • A first cylinder and a second cylinder are provided. A first exhaust pipe is connected to the first cylinder and a second exhaust pipe is connected to the second cylinder. A communicating pipe connects together an intermediate portion of the first exhaust pipe with an intermediate portion of the second exhaust pipe. An exhaust gas control catalyst is arranged in the second exhaust pipe downstream of the portion to which the communicating pipe is connected. Exhaust gas amount reducing devices are provided which reduce the amount of exhaust gas that flows from the first exhaust pipe into the second exhaust pipe through the communicating pipe during execution of rich/lean burn control which performs combustion with an air-fuel ratio of an air-fuel mixture that is richer than the stoichiometric air-fuel ratio in one of the first cylinder and second cylinder and performs combustion with an air-fuel ratio of an air-fuel mixture that is leaner than the stoichiometric air-fuel ratio in the other cylinder.
    • 提供第一气缸和第二气缸。 第一排气管连接到第一气缸,第二排气管连接到第二气缸。 连通管将第一排气管的中间部分与第二排气管的中间部分连接在一起。 排气控制催化剂配置在连通管连接部分下游的第二排气管中。 提供了排气量减少装置,其在执行以空气的空燃比进行燃烧的富/稀燃控制期间,通过连通管减少从第一排气管流入第二排气管的废气量 - 在第一气缸和第二气缸之一中比第一气缸和第二气缸中的化学计量空燃比更浓的燃料混合物,并且以比另一个中的理论空燃比更精细的空气燃料混合物的空燃比进行燃烧 圆筒。
    • 6. 发明授权
    • Exhaust gas control apparatus of an internal combustion engine
    • 内燃机排气控制装置
    • US07753039B2
    • 2010-07-13
    • US12086751
    • 2007-06-08
    • Kenji HarimaShigeki Miyashita
    • Kenji HarimaShigeki Miyashita
    • F02D41/00F02D41/22
    • F02D9/04F01N3/0842F01N3/0885F01N3/2053F01N11/002F01N13/009F01N13/011F01N13/107F01N2240/36F02B37/18F02D41/0007F02D41/0082F02D41/0235Y02T10/144Y02T10/47
    • A first cylinder and a second cylinder are provided. A first exhaust pipe is connected to the first cylinder and a second exhaust pipe is connected to the second cylinder. A communicating pipe connects together an intermediate portion of the first exhaust pipe with an intermediate portion of the second exhaust pipe. An exhaust gas control catalyst is arranged in the second exhaust pipe downstream of the portion to which the communicating pipe is connected. Exhaust gas amount reducing devices are provided which reduce the amount of exhaust gas that flows from the first exhaust pipe into the second exhaust pipe through the communicating pipe during execution of rich/lean burn control which performs combustion with an air-fuel ratio of an air-fuel mixture that is richer than the stoichiometric air-fuel ratio in one of the first cylinder and second cylinder and performs combustion with an air-fuel ratio of an air-fuel mixture that is leaner than the stoichiometric air-fuel ratio in the other cylinder.
    • 提供第一气缸和第二气缸。 第一排气管连接到第一气缸,第二排气管连接到第二气缸。 连通管将第一排气管的中间部与第二排气管的中间部连接。 排气控制催化剂配置在连通管连接部分下游的第二排气管中。 提供了排气量减少装置,其在执行以空气的空燃比进行燃烧的富/稀燃控制期间,通过连通管减少从第一排气管流入第二排气管的废气量 - 在第一气缸和第二气缸之一中比第一气缸和第二气缸中的化学计量空燃比更浓的燃料混合物,并且以比另一个中的理论空燃比更空的空气燃料混合物的空燃比进行燃烧 圆筒。
    • 10. 发明申请
    • Control Apparatus for Internal Combustion Engine and Motor Vehicle Equipped With the Same
    • 内燃机和配备汽车的控制装置
    • US20080257312A1
    • 2008-10-23
    • US10586585
    • 2005-01-21
    • Keiko HasegawaKenji Harima
    • Keiko HasegawaKenji Harima
    • F02D41/30
    • F02D41/042F02D17/04F02D29/02F02D41/062F02D41/3836F02D2200/0414F02D2250/02F02N11/04
    • The engine stop control of the invention uses a correction factor k based on an ambient temperature Tdp in the vicinity of a delivery pipe to set an engine-stop criterion fuel pressure Pref as a fuel pressure of ensuring the sufficient startability of an engine and preventing the vapor generation. The engine stop control stops the operation of the engine after a decrease in fuel pressure Pf in the delivery pipe below the engine-stop criterion fuel pressure Pref. This arrangement effectively prevents the fuel oil-tight leaked from fuel injection valves from being accumulated in cylinders of the engine and thus restrains the poor emission, which may be caused by direct discharge of the fuel accumulated in the cylinders at a restart of the engine. The engine stop control of the invention also reduces the frequency of operation of a relief valve, which works to prevent an excessive increase in fuel pressure Pf in the delivery pipe, thus enhancing the durability of the relief valve.
    • 本发明的发动机停止控制使用基于输送管附近的环境温度Tdp的校正系数k来设定发动机停止标准燃料压力Pref作为确保发动机的充分起动性的燃料压力,并且防止 蒸汽发生。 发动机停止控制在发动机停止标准燃料压力Pref之后的输送管中的燃料压力Pf下降之后停止发动机的运转。 这种布置有效地防止燃油喷射阀的燃油密封泄漏积聚在发动机气缸中,从而抑制在发动机重启时直接排放积存在气缸中的燃料可能引起的不良排放。 本发明的发动机停止控制还降低了安全阀的操作频率,该安全阀的作用是防止输送管中的燃料压力Pf过度增加,从而提高安全阀的耐久性。