发明名称 |
Preignition detecting system |
摘要 |
<p>A preignition detecting system capable of detecting a preigniting condition (PI) at an early time. Vibration of an internal combustion engine is detected by a vibration sensor 113, and is fetched by a controller 12. The crank angle is detected by a crank angle sensor 111. It is so determined that PI has occurred when a difference between the ignition timing and the crank angle at which the vibration level exceeds a predetermined level becomes smaller than a predetermined value. It is further determined that the PI is occurring when the vibration level continues to increase despite the ignition timing being delayed continuously, enabling the occurrence of PI to be detected quickly and reliably. Furthermore, the constitution is simplified by installing a first gate that opens after the passage of a short period of time from the ignition timing and a second gate that opens thereafter.</p> |
申请公布号 |
EP0733891(A2) |
申请公布日期 |
1996.09.25 |
申请号 |
EP19960104551 |
申请日期 |
1996.03.21 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
HASHIZUME, KATSUSHI;MOGI, KAZUHISA |
分类号 |
F02P5/152;F02D45/00;F02P5/153;G01L23/22;G01M15/12;(IPC1-7):G01L23/22 |
主分类号 |
F02P5/152 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|