发明名称 |
IGNITION TIMING CONTROLLING APPARATUS AND IGNITION TIMING CONTROLLING METHOD FOR INTERNAL COMBUSTION ENGINE |
摘要 |
A 90° integrated value calculating unit of an engine ECU calculates a 90° integrated value obtained by integrating a magnitude. A calculating unit calculates a knock magnitude by dividing 90° integrated value by a BGL. A value obtained by subtracting a standard deviation sigma from a median value of 90° integrated value is determined as the BGL. An ignition timing control unit controls the ignition timing depending on whether knock magnitude is equal to or larger than a determination value. A median value calculating unit calculates median value of 90° integrated value. A standard deviation calculating unit calculates standard deviation of 90° integrated value. A first stop unit stops updating of median value and standard deviation when 90° integrated value is smaller than a first threshold value or is equal to or larger than a second threshold value.
|
申请公布号 |
US2009120410(A1) |
申请公布日期 |
2009.05.14 |
申请号 |
US20080263216 |
申请日期 |
2008.10.31 |
申请人 |
KANEKO RIHITO;TANAKA HIROTO;WATANABE SATOSHI;HANAI NORIHITO;YAMASAKO YASUHIRO;SENDA KENJI;MASUDA SATOSHI |
发明人 |
KANEKO RIHITO;TANAKA HIROTO;WATANABE SATOSHI;HANAI NORIHITO;YAMASAKO YASUHIRO;SENDA KENJI;MASUDA SATOSHI |
分类号 |
F02P5/15 |
主分类号 |
F02P5/15 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|