公开(公告)号：US07243020B2

公开(公告)日：2007-07-10

申请号：US11292077

申请日：2005-12-02

申请人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

发明人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

IPC分类号： F02P5/152 ,  G01L23/22

CPC分类号： G01L23/225 ,  F02D41/2461 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/152

摘要： A knock detection apparatus which is capable of changing a knock control starting time period appropriately so as to prevent erroneous knock determination, to thereby expand a knock control range. A peak value acquisition unit acquires a peak value of a vibration of an internal combustion engine during each rotation cycle of a crankshaft of the engine. A background calculator calculates a background by averaging peak values acquired by the peak value acquisition unit. A knock determination unit performs knock determination based on whether a peak value acquired by the peak value acquisition unit is higher than a predetermined level above the background, and feedback controls knock in the engine according to a result of the knock determination. A temperature acquisition unit acquires a temperature of the engine during a start of the engine. A knock determination controller inhibits operation of the knock determination unit until a predetermined time period determined according to the engine temperature acquired by the temperature acquisition unit has elapsed.

摘要翻译： 一种爆震检测装置，其能够适当地改变爆震控制开始时间，以防止错误的爆震判定，从而扩大爆震控制范围。 峰值获取单元获取发动机的曲轴的每个旋转周期期间的内燃机的振动的峰值。 背景计算器通过平均由峰值获取单元获取的峰值计算背景。 敲击判定单元基于由峰值获取单元获取的峰值是否高于背景的预定水平来执行爆震判定，并且反馈根据爆震判定的结果控制发动机的爆震。 温度检测单元在发动机启动期间获取发动机的温度。 敲击判定控制器禁止敲击判定单元的动作，直到根据由温度获取部获取的发动机温度而决定的预定时间段过去。

公开(公告)号：US20060122765A1

公开(公告)日：2006-06-08

申请号：US11292077

申请日：2005-12-02

申请人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

发明人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

IPC分类号： F02P5/152 ,  G01L23/22

CPC分类号： G01L23/225 ,  F02D41/2461 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/152

摘要： A knock detection apparatus which is capable of changing a knock control starting time period appropriately so as to prevent erroneous knock determination, to thereby expand a knock control range. A peak value acquisition unit acquires a peak value of a vibration of an internal combustion engine during each rotation cycle of a crankshaft of the engine. A background calculator calculates a background by averaging peak values acquired by the peak value acquisition unit. A knock determination unit performs knock determination based on whether a peak value acquired by the peak value acquisition unit is higher than a predetermined level above the background, and feedback controls knock in the engine according to a result of the knock determination. A temperature acquisition unit acquires a temperature of the engine during a start of the engine. A knock determination controller inhibits operation of the knock determination unit until a predetermined time period determined according to the engine temperature acquired by the temperature acquisition unit has elapsed.

摘要翻译： 一种爆震检测装置，其能够适当地改变爆震控制开始时间，以防止错误的爆震判定，从而扩大爆震控制范围。 峰值获取单元获取发动机的曲轴的每个旋转周期期间的内燃机的振动的峰值。 背景计算器通过平均由峰值获取单元获取的峰值计算背景。 敲击判定单元基于由峰值获取单元获取的峰值是否高于背景的预定水平来执行爆震判定，并且反馈根据爆震判定的结果控制发动机的爆震。 温度检测单元在发动机启动期间获取发动机的温度。 敲击判定控制器禁止敲击判定单元的动作，直到根据由温度获取部获取的发动机温度而决定的预定时间段过去。