Automatic supercharging control system for an internal combustion engine
    1.
    发明授权
    Automatic supercharging control system for an internal combustion engine 失效
    内燃机自动增压控制系统

    公开(公告)号:US5442918A

    公开(公告)日:1995-08-22

    申请号:US77792

    申请日:1993-06-16

    IPC分类号: F02B37/18 F02D41/00 F02B37/12

    摘要: A system for automatically controlling the supercharging of an internal combustion engine by controlling a variable parameter signal, such as pressure, air quantity, or air mass which characterizes the status of the internal combustion engine supercharging operation. The system includes a closed-loop control system. To optimize supercharging performance the response characteristic of the control system is determined as a function of the rotational frequency of the internal combustion engine and an operating parameter signal which characterizes the dynamic output response of the internal combustion engine and of the supercharger. In the case of large system deviations, the operating parameter signal is derived from the actual measured value of the control variable. The control system raises the value of the operating parameter signal when the control system is deactivated to avoid making an incorrect determination of the value of the operating parameter signal when the control system is then immediately reactivated. When small system deviations occur, the control system operates based on the assumption that the engine and supercharger are operating at a steady-state condition. Under such conditions, the control system uses a stored value for the value of the operating parameter signal.

    摘要翻译: 一种用于通过控制表征内燃机增压操作的状态的可变参数信号(例如压力,空气量或空气质量)来自动控制内燃机的增压的系统。 该系统包括一个闭环控制系统。 为了优化增压性能,控制系统的响应特性被确定为内燃机的转速和表征内燃机和增压器的动态输出响应的操作参数信号的函数。 在系统偏差较大的情况下,操作参数信号来自控制变量的实际测量值。 当控制系统被禁用时,控制系统提高操作参数信号的值,以避免当控制系统立即重新启动时不正确地确定操作参数信号的值。 当发生小的系统偏差时,控制系统基于发动机和增压器在稳态条件下运行的假设来操作。 在这种条件下,控制系统使用存储的值作为运行参数信号的值。

    Device for detecting faults in an apparatus for detecting knocking
    3.
    发明授权
    Device for detecting faults in an apparatus for detecting knocking 失效
    用于检测用于检测爆震的装置中的故障的装置

    公开(公告)号:US5517969A

    公开(公告)日:1996-05-21

    申请号:US436381

    申请日:1995-05-11

    摘要: A device for detecting faults in conjunction with the detection of knocking in an internal combustion engine is disclosed, in which device the sensor output signals are compared with an engine speed-dependent, normalized reference level in order to detect knocking. As a function of the comparison result, knocking is detected and, when knocking is detected, knocking-preventing measures are initiated. So that the internal combustion engine does not erroneously go into unacceptable operating states when a knocking sensor or the associated evaluation circuit is operating incorrectly, continuous detection of faults takes place, during which it is tested whether the normalized reference level lies within a permitted range which is formed as a function of engine speed, this range being either the permitted, normalized reference level band or a range between an engine speed-dependent upper limit value (UGO) and an engine speed-dependent lower limit value (UGU). If the normalized reference signal level leaves this range for a prescribable time, a fault is detected and safety measures are initiated which are effective until the reference level lies within the permitted range again.

    摘要翻译: PCT No.PCT / DE94 / 01041 Sec。 371日期1995年5月11日 102(e)日期1995年5月11日PCT 1994年9月10日PCT PCT。 公开号WO95 / 08760 公开了一种用于检测内燃机中爆震检测中的故障的装置,其中传感器输出信号与发动机转速相关的标准化参考电平进行比较,以便检测 敲门 作为比较结果的功能,检测到敲击,并且当检测到敲击时,开始防止爆震措施。 因此,当爆震传感器或相关的评估电路运行不正确时,内燃机不会错误地进入不可接受的运行状态,因此会发生连续检测故障,在此期间测试归一化参考电平是否在允许范围内 形成为发动机速度的函数,该范围是允许的,归一化的参考水平带或发动机转速相关上限值(UGO)和发动机转速相关下限值(UGU)之间的范围。 如果归一化参考信号电平在可处理时间内离开此范围,则检测到故障,并启动安全措施,直到参考电平再次在允许范围内。

    Protection system for a pressure-charged internal combustion engine and
method of operation
    5.
    发明授权
    Protection system for a pressure-charged internal combustion engine and method of operation 失效
    压力内燃机的保护系统及其运行方法

    公开(公告)号:US5502966A

    公开(公告)日:1996-04-02

    申请号:US343598

    申请日:1994-11-30

    摘要: A protection system for a pressure-charged (supercharged) combustion engine. In normal operation, the pressure-charging is controlled and/or regulated to a specifiable desired setpoint value P Setpoint. For the case of over-boosting of the internal combustion engine, various protective measures are provided, which are used in dependence upon the extent of over-boosting. In the case of a first protective measure, the control and/or regulation of the pressure-charging is switched off, and a final controlling element, which influences the pressure-charging, is adjusted to a predeterminable position. In the case of a second protective measure, the fuel metering to individual cylinders is interrupted in accordance with a predetermined skip pattern. If it is not possible to achieve an adequate reduction in the pressure-charging by this means, the system switches successively to further skip patterns with a higher skip frequency.

    摘要翻译: PCT No.PCT / DE94 / 00182 Sec。 371日期1994年11月30日 102(e)1994年11月30日PCT PCT 1994年2月23日PCT公布。 公开号WO94 / 23190 日期:1994年10月13日。一种充压(增压)内燃机的保护系统。 在正常操作中,压力充电被控制和/或调节到可指定的期望设定值P设定值。 对于内燃机的过度增压的情况,提供了各种保护措施,这些措施根据过度增压的程度而使用。 在第一保护措施的情况下,关闭加压的控制和/或调节,并且影响压力充电的最终控制元件被调节到可预定的位置。 在第二保护措施的情况下,根据预定的跳跃模式中断到各个气缸的燃料计量。 如果不可能通过这种方式实现充压的充分降低,则系统连续切换以进一步跳过具有较高跳跃频率的模式。