| 发明名称 | Internal combustion engine and control method therefor | ||
| 摘要 | An internal combustion engine includes an Exhaust Gas Recirculation (EGR) system having an EGR valve and a reed valve in an EGR passage, and a control device that expresses a relationship between an opening degree of the EGR valve and a mass flow rate of an EGR gas by using a first volume flow rate of the EGR gas that can be expressed by using an isentropic flow equation of a nozzle of the EGR valve and a second volume flow rate of the EGR gas pumped out by the reed valve. Even if the reed valve (check valve) is provided in the EGR passage, the mass flow rate of the EGR gas can be calculated accurately. | ||
| 申请公布号 | US9528455(B2) | 申请公布日期 | 2016.12.27 |
| 申请号 | US201314394118 | 申请日期 | 2013.05.02 |
| 申请人 | ISUZU MOTORS LIMITED | 发明人 | Hanamura Yoshihumi;Aso Mitsuhiro |
| 分类号 | F02D41/00;F02D41/14 | 主分类号 | F02D41/00 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. An internal combustion engine including an EGR system having an EGR valve and a check valve in an EGR passage, wherein, the internal combustion engine comprises: a control device expressing a relationship between an opening degree of the EGR valve and a mass flow rate of an EGR gas by using a first volume flow rate of the EGR gas that can be expressed by using an isentropic flow equation of a nozzle of the EGR valve and a second volume flow rate of the EGR gas pumped out by the check valve. | ||
| 地址 | Tokyo JP | ||