发明名称 |
Control system for internal combustion engine |
摘要 |
A control system for an internal combustion engine having a throttle valve disposed in an intake passage of the engine. A target intake air amount of the engine is calculated, and an intake pressure of the engine is estimated. A wide-open intake air amount is calculated according to the engine rotational speed, and a theoretical intake air amount is calculated according to the wide-open intake air amount and the intake pressure. The wide-open intake air amount is an intake air amount corresponding to a state where the throttle valve is fully opened, and the theoretical intake air amount 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. further, an exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the target intake air amount, and a target output torque of the engine is calculated using the target intake air amount and the exhaust gas recirculation ratio. The engine is controlled using the target output torque. |
申请公布号 |
US9014950(B2) |
申请公布日期 |
2015.04.21 |
申请号 |
US201113172489 |
申请日期 |
2011.06.29 |
申请人 |
Honda Motor Co., Ltd. |
发明人 |
Kosaka Yosuke;Shiomi Daisuke;Takagi Jiro;Agata Masaya;Onuma Kentaro;Ochiai Shinobu |
分类号 |
F02P5/15;F02P5/152;F02D11/10;F02D41/18;F02D41/00;F02D13/02 |
主分类号 |
F02P5/15 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A control system for an internal combustion engine having a throttle valve disposed in an intake passage of said engine, comprising:
rotational speed detecting means for detecting a rotational speed of said engine; target intake air amount calculating means for calculating a target intake air amount of said engine; intake pressure estimating means for estimating an intake pressure of said engine; wide-open intake air amount calculating means for calculating a wide-open intake air amount according to the engine rotational speed, the wide-open intake air amount being an intake air amount corresponding to a state where said throttle valve is fully opened; theoretical intake air amount calculating means for calculating a theoretical intake air amount according to the wide-open intake air amount and the intake pressure, the theoretical intake air amount being an intake air amount corresponding to a state where no exhaust gas of said engine is recirculated to a combustion chamber of said engine; exhaust gas recirculation ratio calculating means for calculating an exhaust gas recirculation ratio using the theoretical intake air amount and the target intake air amount; target output torque calculating means for calculating a target output torque of said engine using the target intake air amount and the exhaust gas recirculation ratio; and control means for controlling said engine using the target output torque. |
地址 |
Tokyo JP |