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公开(公告)号：US08918269B2
公开(公告)日：2014-12-23
申请号：US14364500
申请日：2012-10-19
Applicant: Honda Motor Co., Ltd.
Inventor： Seiichiro Irie , Hisashi Ito , Hideharu Takamiya , Hirotaka Komatsu , Yasuhiro Motohashi
CPC classification number: F02M25/08 , F02D41/0042 , F02D41/0045 , F02D41/0052 , F02D41/0062 , F02D41/0072 , F02D41/18 , F02D41/2445 , F02D41/2454 , F02D2041/001 , F02D2200/0402 , F02D2200/0414 , F02M26/00 , F02P5/1516 , F02P5/152 , Y02T10/46 , Y02T10/47
Abstract: A control apparatus for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An air-fuel ratio correction amount and a learning value thereof are calculated according to the detected air-fuel ratio, and a reference intake air amount is calculated using the intake pressure, the engine rotational speed, the air-fuel ratio correction amount, and the learning value. A lower limit value of the detected intake air amount is set according to the reference intake air amount, and a limit process is performed for limiting the detected intake air amount within a range of values which are equal to or greater than the lower limit value. An amount of the evaporative fuel/air mixture supplied to the intake passage is calculated, and the limit-processed intake air amount is corrected using the evaporative fuel/air mixture amount to calculate an intake gas amount. An exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the intake gas amount.
Abstract translation: 提供一种具有设置在发动机的进气通道中的节流阀的内燃机的控制装置。 计算作为与节气门完全打开的状态相对应的吸入空气量的大开放吸入空气量，以及理论吸入空气量，其为不排气 的发动机再循环到发动机的燃烧室，根据大气开放量和进气压力来计算。 根据检测到的空燃比计算空燃比校正量和学习值，并且使用进气压力，发动机转速，空燃比校正量和 学习价值。 根据基准进气量设定检测出的进气量的下限值，并且在检测到的进气量限制在等于或大于下限值的值的范围内进行限位处理。 计算供给到进气通道的蒸发燃料/空气混合物的量，并且使用蒸发燃料/空气混合物量来校正限制进入空气量，以计算进气量。 使用理论进气量和进气量计算排气再循环比。
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公开(公告)号：US09803539B2
公开(公告)日：2017-10-31
申请号：US13681422
申请日：2012-11-20
Applicant: HONDA MOTOR CO., LTD.
Inventor： Hiroaki Sato , Yasuhiro Motohashi , Haruya Kitano , Masayoshi Takahashi , Hiromitsu Hirano , Shun Tanaka
CPC classification number: F02B23/0651 , F02B23/104 , F02B2023/103 , F02M39/00 , F02M61/14 , F02M61/1813 , Y02T10/125
Abstract: An internal-combustion engine includes a cylinder, a piston, a spark plug, and a fuel injection valve. The piston includes a top surface and a cavity provided in the top surface. The cavity includes a bottom surface, a vertical wall, a first sidewall, and a second sidewall. The fuel injection valve includes a plurality of injection ports from which a plurality of fuel mists are to be obliquely injected toward the top surface of the piston in respectively different directions at a predetermined crank angle in a compression stroke. The cavity extends from a position close to a center of the piston toward the fuel injection valve when viewed from above the top surface of the piston. The first and second sidewalls extend toward the fuel injection valve when viewed from above the top surface of the piston.
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公开(公告)号：US20140338636A1
公开(公告)日：2014-11-20
申请号：US14364500
申请日：2012-10-19
Applicant: HONDA MOTOR CO., LTD.
Inventor： Seiichiro Irie , Hisashi Ito , Hideharu Takamiya , Hirotaka Komatsu , Yasuhiro Motohashi
IPC: F02M25/08
CPC classification number: F02M25/08 , F02D41/0042 , F02D41/0045 , F02D41/0052 , F02D41/0062 , F02D41/0072 , F02D41/18 , F02D41/2445 , F02D41/2454 , F02D2041/001 , F02D2200/0402 , F02D2200/0414 , F02M26/00 , F02P5/1516 , F02P5/152 , Y02T10/46 , Y02T10/47
Abstract: A control apparatus for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An air-fuel ratio correction amount and a learning value thereof are calculated according to the detected air-fuel ratio, and a reference intake air amount is calculated using the intake pressure, the engine rotational speed, the air-fuel ratio correction amount, and the learning value. A lower limit value of the detected intake air amount is set according to the reference intake air amount, and a limit process is performed for limiting the detected intake air amount within a range of values which are equal to or greater than the lower limit value. An amount of the evaporative fuel/air mixture supplied to the intake passage is calculated, and the limit-processed intake air amount is corrected using the evaporative fuel/air mixture amount to calculate an intake gas amount. An exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the intake gas amount.
Abstract translation: 提供一种具有设置在发动机的进气通道中的节流阀的内燃机的控制装置。 计算作为与节气门完全打开的状态相对应的吸入空气量的大开放吸入空气量，以及理论吸入空气量，其为不排气 的发动机再循环到发动机的燃烧室，根据大气开放量和进气压力来计算。 根据检测到的空燃比计算空燃比校正量和学习值，并且使用进气压力，发动机转速，空燃比校正量和 学习价值。 根据基准进气量设定检测出的进气量的下限值，并且在检测到的进气量限制在等于或大于下限值的值的范围内进行限位处理。 计算供给到进气通道的蒸发燃料/空气混合物的量，并且使用蒸发燃料/空气混合物量来校正限制进入空气量，以计算进气量。 使用理论进气量和进气量计算排气再循环比。
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