公开(公告)号：US07621176B2

公开(公告)日：2009-11-24

申请号：US11838233

申请日：2007-08-14

申请人： Wolfgang Layher ,  Georg Maier ,  Christine Halle ,  Arno Kinnen ,  Uwe Theimer

发明人： Wolfgang Layher ,  Georg Maier ,  Christine Halle ,  Arno Kinnen ,  Uwe Theimer

IPC分类号： G01L3/26

CPC分类号： F02B77/085 ,  F02B2075/025 ,  F02D35/023 ,  F02D41/009 ,  F02D2400/06 ,  G01L23/30

摘要： The absolute crankshaft angle of an internal combustion engine of a hand-held power tool is to be determined. The engine has a cylinder with a combustion chamber delimited by a piston that drives a crankshaft in a crankcase. The crankcase is connected by a transfer passage to the combustion chamber and the transfer port of the transfer passage is piston-controlled. Ignition takes place at an adjusted crankshaft angle. The energy supply unit of the engine is driven by the crankshaft and provides electric energy for ignition. The crankshaft angle is determined in that a signal generator is provided as an energy supply unit and generates an alternating voltage signal caused by a crankshaft revolution. An operating pressure signal of the engine is detected by a pressure sensor. The output signals of the pressure sensor and of the signal generator are linked with one another for determining the absolute crankshaft angle.

摘要翻译： 要确定手持式电动工具的内燃机的绝对曲轴角度。 发动机具有气缸，其具有由驱动曲轴箱中的曲轴的活塞限定的燃烧室。 曲轴箱通过传送通道连接到燃烧室，传送通道的传送口由活塞控制。 点火发生在调整后的曲轴角度。 发动机的能量供给单元由曲轴驱动，并提供点火用电能。 确定曲轴角度是指信号发生器被设置为能量供应单元并且产生由曲轴转动引起的交流电压信号。 发动机的工作压力信号由压力传感器检测。 压力传感器和信号发生器的输出信号彼此相连以确定绝对的曲轴角度。

公开(公告)号：US20080041144A1

公开(公告)日：2008-02-21

申请号：US11838233

申请日：2007-08-14

申请人： Wolfgang Layher ,  Georg Maier ,  Christine Halle ,  Arno Kinnen ,  Uwe Theimer

发明人： Wolfgang Layher ,  Georg Maier ,  Christine Halle ,  Arno Kinnen ,  Uwe Theimer

IPC分类号： G01L3/26

CPC分类号： F02B77/085 ,  F02B2075/025 ,  F02D35/023 ,  F02D41/009 ,  F02D2400/06 ,  G01L23/30

摘要： The absolute crankshaft angle of an internal combustion engine of a hand-held power tool is to be determined. The engine has a cylinder with a combustion chamber delimited by a piston that drives a crankshaft in a crankcase. The crankcase is connected by a transfer passage to the combustion chamber and the transfer port of the transfer passage is piston-controlled. Ignition takes place at an adjusted crankshaft angle. The energy supply unit of the engine is driven by the crankshaft and provides electric energy for ignition. The crankshaft angle is determined in that a signal generator is provided as an energy supply unit and generates an alternating voltage signal caused by a crankshaft revolution. An operating pressure signal of the engine is detected by a pressure sensor. The output signals of the pressure sensor and of the signal generator are linked with one another for determining the absolute crankshaft angle.

摘要翻译： 要确定手持式电动工具的内燃机的绝对曲轴角度。 发动机具有气缸，其具有由驱动曲轴箱中的曲轴的活塞限定的燃烧室。 曲轴箱通过传送通道连接到燃烧室，传送通道的传送口由活塞控制。 点火发生在调整后的曲轴角度。 发动机的能量供给单元由曲轴驱动，并提供点火用电能。 确定曲轴角度是指信号发生器被设置为能量供应单元并且产生由曲轴转动引起的交流电压信号。 发动机的工作压力信号由压力传感器检测。 压力传感器和信号发生器的输出信号彼此相连以确定绝对的曲轴角度。