Process for operating an Otto internal-combustion engine having an
internal mixture formation
    1.
    发明授权
    Process for operating an Otto internal-combustion engine having an internal mixture formation 失效
    用于操作具有内部混合物形成的奥托内燃机的方法

    公开(公告)号:US5941208A

    公开(公告)日:1999-08-24

    申请号:US964029

    申请日:1997-11-04

    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。

    Method for increasing the safety of motor-vehicle occupants in the event of a crash
    3.
    发明授权
    Method for increasing the safety of motor-vehicle occupants in the event of a crash 有权
    发生碰撞时提高机动车辆乘客安全的方法

    公开(公告)号:US06223714B1

    公开(公告)日:2001-05-01

    申请号:US09399672

    申请日:1999-09-21

    IPC分类号: F02B7700

    CPC分类号: B60K28/14 B60R21/01

    摘要: Switching off a fuel pump of a fuel supply system for the internal combustion engine with the aid of a signal from a retardation sensor of the airbag in the event of a crash in which the motor vehicle is involved is known. To further enhance the safety of motor-vehicle occupants, a method is proposed for an internal combustion engine which has at least one fuel injection valve, a fuel supply system for the at least one fuel injection valve, and a sensor for detecting a crash. After the crash has been detected by means of the sensor, the fuel injection valve is brought into an open position, with the result that fuel is discharged from the fuel supply system of the fuel injection valve into a combustion chamber of the internal combustion engine. The method according to the invention is provided for internal combustion engines with at least one fuel injection valve.

    摘要翻译: 已知在涉及机动车辆的碰撞的情况下,借助于来自气囊的延迟传感器的信号,关闭用于内燃机的燃料供给系统的燃料泵。为了进一步提高安全性 机动车辆乘员提出了一种用于内燃机的方法,所述内燃机具有至少一个燃料喷射阀,用于至少一个燃料喷射阀的燃料供应系统和用于检测碰撞的传感器。 在通过传感器检测到碰撞之后,燃料喷射阀进入打开位置,结果是燃料从燃料喷射阀的燃料供给系统排出到内燃机的燃烧室中。 根据本发明的方法为具有至少一个燃料喷射阀的内燃机提供。