公开(公告)号：US07165542B2

公开(公告)日：2007-01-23

申请号：US10945421

申请日：2004-09-20

申请人： Stephen C. Masters ,  Douglas B. Waits

发明人： Stephen C. Masters ,  Douglas B. Waits

IPC分类号： F02P9/00 ,  F00P5/00

CPC分类号： F02P3/0456 ,  F02P5/1502 ,  F02P5/1555 ,  Y02T10/46

摘要： A system and method of managing the energy stored in a single ignition coil of a distributor inductive ignition for an engine. The engine comprises a plurality of cylinders and the ignition coil has a primary coil current. The ignition coil has a stored energy and a released energy during an ignition period. A pre-dwell time period and a pre-dwell current level is determined. The stored energy of the ignition coil and the released energy of the ignition coil are balanced during the ignition period at least in part by dwelling the primary coil current in the ignition coil at substantially the pre-dwell current level.

摘要翻译： 一种管理存储在用于发动机的分配器感应点火的单个点火线圈中的能量的系统和方法。 发动机包括多个气缸，点火线圈具有初级线圈电流。 点火线圈在点火期间具有存储的能量和释放的能量。 确定预留时间段和预停留电流水平。 点火线圈的存储能量和点火线圈的释放能量在点火周期期间至少部分地通过使点火线圈中的初级线圈电流基本上保持在暂停电流水平下来平衡。

公开(公告)号：US07171942B2

公开(公告)日：2007-02-06

申请号：US11163364

申请日：2005-10-17

申请人： Hans Nickel

发明人： Hans Nickel

IPC分类号： F02D31/00 ,  F00P5/00 ,  B60W10/08

CPC分类号： F02P5/1555 ,  F02D31/001 ,  F02D41/022 ,  F02D41/22 ,  F02D2400/06 ,  F02P5/1502 ,  Y02T10/46 ,  Y10T477/79

摘要： A device that controls the engine speed of an internal combustion engine of a hand-held power tool has a protective control unit. The engine has an ignition control unit for controlling the ignition timing relative to a crank angle of a crankshaft based on the crankshaft speed and also has a centrifugal clutch driven by the crankshaft that begins to engage when a first engine speed is surpassed and is fully engaged when a second engine speed is reached. The protective control unit is activated within an engine speed range between the first and second engine speeds and monitors a dwell time of the actual engine speed within the engine speed range. When a predetermined dwell time of the actual engine speed is surpassed, the protective control unit intervenes in the combustion process and corrects the engine speed to a value that is outside of the engine speed range.

摘要翻译： 控制手持式电动工具的内燃机的发动机转速的装置具有保护控制单元。 发动机具有点火控制单元，用于基于曲轴速度来控制相对于曲轴的曲柄角的点火正时，并且还具有由曲轴驱动的离心式离合器，该离合式离合器在第一发动机转速超过并完全接合时开始接合 当达到第二发动机转速时。 保护控制单元在第一和第二发动机速度之间的发动机速度范围内被启动，并且监测发动机转速范围内实际发动机转速的停留时间。 当超过实际发动机转速的预定停留时间时，保护控制单元在燃烧过程中进行干预，并且将发动机转速校正到超出发动机转速范围的值。