公开(公告)号：US5941208A

公开(公告)日：1999-08-24

申请号：US964029

申请日：1997-11-04

申请人： Andreas Biemelt ,  Christian Enderle ,  Stephan Kramer ,  Klaus Rossler ,  Bernd Baur ,  Peter Hohner ,  Gunter Karl ,  Roland Kemmler

发明人： Andreas Biemelt ,  Christian Enderle ,  Stephan Kramer ,  Klaus Rossler ,  Bernd Baur ,  Peter Hohner ,  Gunter Karl ,  Roland Kemmler

IPC分类号： F02B23/10 ,  F02B75/12 ,  F02D41/30 ,  F02P17/00 ,  F02P15/00

CPC分类号： F02D41/3029 ,  F02D41/3076 ,  F02B2075/125 ,  F02B23/101 ,  F02D2041/389 ,  F02P17/00 ,  Y02T10/123

摘要： Otto internal-combustion engines having one injector respectively per cylinder for the internal mixture formation can be operated at full load or high partial load by fuel injection in the suction stroke of the piston and, at medium or low partial load, with a compression stroke injection. The compression stroke injection, which is advantageous in this load range, because of low average combustion space temperatures and the tendency to form deposits in the combustion space because of residues of liquid fuel and the resulting impaired operating conditions, can partially be carried out only to a limited degree. In order to provide a process for operating an Otto internal-combustion engine of the above-mentioned type which permits an arbitrary operating period in the medium or low load range, it is provided that, in the operation of the internal-combustion engine with a compression stroke injection, as a function of the time or at least of an operating parameter, independently of the momentary load requirement, a change-over takes place to a suction stroke injection while simultaneously reducing the intake air quantity and, after the conclusion of a certain free-burning interval, a switching-back takes place into the operating mode with the compression stroke injection.

摘要翻译： 具有分别用于内部混合物形成的每个气缸的一个喷射器的奥托内燃机可以在全负荷或高部分负荷下通过在活塞的吸入冲程中的燃料喷射以及在中等或低部分负荷下用压缩冲程喷射 。 由于平均燃烧空间温度低以及由于液体燃料的残留而导致在燃烧空间中形成沉积物的趋势以及由此导致的受损操作条件，在该负载范围中有利的压缩冲程喷射可以仅部分地被执行到 有限度 为了提供一种用于操作上述类型的奥托内燃机的方法，其允许在中等或低负载范围内的任意运行周期，条件是在内燃机的操作中具有 压缩冲程喷射，作为时间的函数或至少是操作参数，独立于瞬时负载要求，在吸入冲程喷射的同时进行转换，同时减少进气量，并且在结束后 某些自由燃烧的间隔，通过压缩冲程喷射进入操作模式。

公开(公告)号：US5904127A

公开(公告)日：1999-05-18

申请号：US950956

申请日：1997-10-15

申请人： Roland Kemmler ,  Guenter Karl ,  Peter Hohner ,  Bernd Baur

发明人： Roland Kemmler ,  Guenter Karl ,  Peter Hohner ,  Bernd Baur

IPC分类号： F02B23/10 ,  F02B75/12 ,  F02D35/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/30 ,  F02B17/00

CPC分类号： F02D35/021 ,  F02D41/005 ,  F02B2075/125 ,  F02B2275/14 ,  F02B23/101 ,  F02D2041/389 ,  F02D41/3023 ,  Y02T10/123 ,  Y02T10/47

摘要： In a method of controlling adjustable operating parameters of an internal combustion engine with direct fuel injection which includes at least one cylinder having a piston delimiting a combustion chamber, a fuel injector and a spark plug, wherein air supplied to the combustion chamber through an air intake passage forms with the fuel injected by the fuel injector a fuel/air mixture which is compressed and produces a plasma cloud which is then ignited by a spark generated between the electrodes of the spark plug, the ionization degree of the plasma cloud is measured and an ionization signal is formed and supplied to an electronic control unit where it is utilized to control at least one operating parameter of the internal combustion engine.

摘要翻译： 一种控制具有直接燃料喷射的内燃机的可调节运行参数的方法，该燃料喷射包括至少一个气缸，其具有限定燃烧室的活塞，燃料喷射器和火花塞，其中通过进气口供应到燃烧室的空气 通过燃料喷射器喷射的燃料，燃料/空气混合物被压缩并产生等离子体云，然后等离子体云被在火花塞的电极之间产生的火花点燃，测量等离子体云的电离度，并且 形成电离信号并将其提供给电子控制单元，在该控制单元中用于控制内燃机的至少一个操作参数。

公开(公告)号：US06176215B1

公开(公告)日：2001-01-23

申请号：US09118349

申请日：1998-07-17

申请人： Bernd Baur ,  Peter Hohner ,  G{umlaut over (u)}nter Karl ,  Roland Kemmler

发明人： Bernd Baur ,  Peter Hohner ,  G{umlaut over (u)}nter Karl ,  Roland Kemmler

IPC分类号： F02B1700

CPC分类号： F02P15/006 ,  F02B23/101 ,  F02B2075/125 ,  F02P9/002 ,  Y02T10/123

摘要： A method for operation of a direct-injection spark-ignition internal combustion engine operated over large areas of the characteristics map with stratified charge by way of fuel injection during the compression stroke. In order to guarantee reliable mixture ignition and combustion, the method of the present invention provides an ignition system which generates alternating voltage so that high voltage rapidly builds up between the electrodes of a spark plug, and generates ignition sparks with a spark duration that can be defined as a function of operating point.

摘要翻译： 一种直接喷射式火花点火式内燃机的操作方法，该内燃机在压缩冲程期间通过燃料喷射在大面积的特征图上进行分层充电。 为了保证可靠的混合点火和燃烧，本发明的方法提供一种点火系统，其产生交流电压，使得高电压在火花塞的电极之间快速积聚，并产生具有火花持续时间的点火火花 定义为工作点的功能。

公开(公告)号：US6145490A

公开(公告)日：2000-11-14

申请号：US318391

申请日：1999-05-25

申请人： Hans Dieter Heidenfelder ,  Christoph Eisath ,  Wolf-Eike Holtschmit ,  Bernd Baur ,  Christoph Lux ,  Stefan-Max Weber

发明人： Hans Dieter Heidenfelder ,  Christoph Eisath ,  Wolf-Eike Holtschmit ,  Bernd Baur ,  Christoph Lux ,  Stefan-Max Weber

IPC分类号： F02D41/06 ,  F02D41/30 ,  F02D41/38 ,  F02D41/40 ,  F02B17/00

CPC分类号： F02D41/3818 ,  F02D41/064 ,  F02D41/3076 ,  F02D41/401 ,  F02D2200/0602 ,  F02D41/3029 ,  Y02T10/44

摘要： A changeover is made between a so-called low-pressure starting with a homogeneous mixture and a so-called high-pressure starting with a stratified mixture as a function of an engine coolant temperature. Since, during the high-pressure starting of the internal combustion engine, injection is released only when a pressure in a high-pressure accumulator exceeds a predetermined threshold value, the injected fuel is better prepared. During such high-pressure starting, injection is predetermined by an injection quantity and an angle of an end of injection. Predetermining the angle of the end of injection, in contrast to predetermining an angle of commencement of injection during conventional low-pressure starting, ensures that there is an ignitable mixture present at the sparkplug, specifically irrespective of a duration of injection.

摘要翻译： 作为发动机冷却剂温度的函数，在所谓的均匀混合物的低压起动和以分层混合物开始的所谓高压之间进行切换。 由于在内燃机的高压启动期间，只有当高压蓄能器中的压力超过预定阈值时才释放喷射，因此更好地准备喷射的燃料。 在这种高压启动期间，通过注射量和注射端的角度来预定注射。 与预先确定常规低压启动期间的喷射开始角度相反，预先确定喷射结束的角度，确保在火花塞处存在可点燃的混合物，具体而言与喷射持续时间无关。