发明名称 |
Ventilsteuerungseinrichtung für eine Brennkraftmaschine |
摘要 |
In an internal combustion engine having a plurality of electromagnetically driven valves (16a, 16b) for each cylinder, when a required EGR amount Er is relatively small during an exhaust gas recirculation performed independently of the exhaust stroke, a first exhaust gas recirculation mode (S310 to S350) is entered by driving only a first exhaust valve of each cylinder. An open valve duration Td1 for achieving the required EGR amount Er in a one-valve drive manner is longer than a corresponding open valve duration in a two-valve drive manner. Therefore, even if the required EGR amount Er is small, a "one-valve drive in pattern 1" mode can be achieved provided that Td1 > a. That is, the incidence of performing the control in pattern 2, which allows only a narrow range of control, can be reduced. Hence, degradation of controllability can be prevented even if the required EGR amount Er is small. <IMAGE> |
申请公布号 |
DE60030216(T2) |
申请公布日期 |
2007.07.12 |
申请号 |
DE2000630216T |
申请日期 |
2000.07.11 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA |
发明人 |
IIDA, TATSUO;IZUO, TAKASHI;ASANO, MASAHIKO;HATTORI, HIROYUKI |
分类号 |
F01L9/04;F02D13/02;F02D21/08;F02F1/42;F02M25/07 |
主分类号 |
F01L9/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|