公开(公告)号：US09644546B2

公开(公告)日：2017-05-09

申请号：US14119622

申请日：2011-11-08

申请人： Yoshihiro Sakayanagi ,  Takashi Kawasaki ,  Hiroyuki Tanaka ,  Takano Nakai

发明人： Yoshihiro Sakayanagi ,  Takashi Kawasaki ,  Hiroyuki Tanaka ,  Takano Nakai

IPC分类号： F02D15/00 ,  F02D15/04 ,  F02D13/02 ,  G01M15/08 ,  G01M15/05

CPC分类号： F02D15/00 ,  F02D13/0234 ,  F02D15/04 ,  G01M15/05 ,  G01M15/08 ,  Y02T10/18

摘要： This internal combustion engine is provided with a variable compression ratio mechanism capable of changing a mechanical compression ratio by changing the volume of the combustion chamber at the top dead center. The pressure and temperature of remaining combusted gas within the combustion chamber at the time when the exhaust valve is closed in the intake stroke is measured or estimated, the pressure and temperature of intake air supplied into the combustion chamber after the exhaust valve is closed in the intake stroke is measured or estimated, and based on the assumption that the pressure and temperature of the remaining combusted gas which saturates the volume of the combustion chamber at the time when the exhaust valve is closed in the air intake stroke become, when the intake air is supplied to the combustion chamber, equal to the pressure and temperature of the intake air, the volume of the remaining combusted gas after the change is calculated.

公开(公告)号：US20150128911A1

公开(公告)日：2015-05-14

申请号：US14119622

申请日：2011-11-08

申请人： Yoshihiro Sakayanagi ,  Takashi Kawasaki ,  Hiroyuki Tanaka ,  Takano Nakai

发明人： Yoshihiro Sakayanagi ,  Takashi Kawasaki ,  Hiroyuki Tanaka ,  Takano Nakai

IPC分类号： F02D15/00 ,  G01M15/08 ,  F02D13/02

CPC分类号： F02D15/00 ,  F02D13/0234 ,  F02D15/04 ,  G01M15/05 ,  G01M15/08 ,  Y02T10/18

摘要： This internal combustion engine is provided with a variable compression ratio mechanism capable of changing a mechanical compression ratio by changing the volume of the combustion chamber at the top dead center. The pressure and temperature of remaining combusted gas within the combustion chamber at the time when the exhaust valve is closed in the intake stroke is measured or estimated, the pressure and temperature of intake air supplied into the combustion chamber after the exhaust valve is closed in the intake stroke is measured or estimated, and based on the assumption that the pressure and temperature of the remaining combusted gas which saturates the volume of the combustion chamber at the time when the exhaust valve is closed in the air intake stroke become, when the intake air is supplied to the combustion chamber, equal to the pressure and temperature of the intake air, the volume of the remaining combusted gas after the change is calculated.

摘要翻译： 该内燃机设置有通过改变上止点处的燃烧室的体积而能够改变机械压缩比的可变压缩比机构。 测量或估计在进气冲程中关闭排气阀时在燃烧室内的剩余燃烧气体的压力和温度，在排气阀关闭后供给到燃烧室中的进气的压力和温度 进气行程被测量或估计，并且基于在进气冲程中当排气门关闭时饱和燃烧室的容积的剩余燃烧气体的压力和温度变为当进气 被供给到等于进气的压力和温度的燃烧室，计算出改变后的剩余燃烧气体的体积。