Process for fuel metering
    1.
    发明授权
    Process for fuel metering 失效
    燃油计量过程

    公开(公告)号:US4893602A

    公开(公告)日:1990-01-16

    申请号:US165274

    申请日:1988-03-02

    IPC分类号: F02D41/10 F02D41/34

    CPC分类号: F02D41/105

    摘要: The invention relates to a process for fuel metering during acceleration operations at a plurality of cylinders of an internal-combustion engine, with sequential injection, in which the fuel quantity to be injected is determined corresponding to the operating state and the acceleration state is determined, additional fuel injections being performed after determination of the acceleration state. Such a process is to be further developed to the extent that a faster metering of the increased fuel quantity into the internal-combustion engine can be performed during the acceleration operation. To achieve this object, it is proposed that the determined fuel quantity is injected into at least one, preferably into all those cylinders whose injected fuel quantity has not yet been taken in and whose inlet valve has not yet been closed or whose intake stroke has not yet been concluded. This takes place in particular at the time of the generation of a trigger signal (TS) corresponding to the quantity which corresponds to the set fuel increase of the acceleration.

    摘要翻译: PCT No.PCT / DE87 / 00283 Sec。 371日期1988年3月2日 102(e)1988年3月2日PCT PCT。1987年6月23日PCT公布。 出版物WO88 / 00285 PCT 日本1988年1月14日。本发明涉及一种在内燃机的多个气缸的加速操作期间燃料计量的方法,其具有顺序喷射,其中根据运行状态确定要喷射的燃料量 并且确定加速状态,在确定加速状态之后执行额外的燃料喷射。 这种过程将进一步发展到在加速操作期间可以执行更快的计量到内燃机中的增加的燃料量的程度。 为了达到这个目的,建议将确定的燃料量注入到至少一个,优选地注入所有那些尚未被注入燃料量并且进气阀尚未被关闭或进气冲程还未被吸入的那些气缸中 尚未结束。 特别是在产生对应于与加速度的设定燃料增加相对应的量的触发信号(TS)时发生。

    Method and apparatus for data exchange between microprocessors
    3.
    发明授权
    Method and apparatus for data exchange between microprocessors 失效
    微处理器之间数据交换的方法和装置

    公开(公告)号:US4845667A

    公开(公告)日:1989-07-04

    申请号:US249267

    申请日:1988-09-22

    IPC分类号: F02D41/26 G06F15/17

    CPC分类号: G06F15/17 F02D41/266

    摘要: A method and apparatus for data exchange between a master microprocessor and a slave microprocessor, in which the connection is a parallel bus and the data exchange requires a minimum of time. For this purpose, the data are transmitted in a predetermined sequence and in which the transmission-start identifier is a signal train generated by the master processor which is specifically associated with data transmission. Preferably, a master processor and a slave processor are interconnected by the parallel data bus, with buffer memories, such as latches, interposed. A toggle flip-flop is connected to the interrupt input of the slave processor in such a way that merely placing a specific instruction (i.e. command+data) on the bus simultaneously notifies the slave processor to prepare for the exchange of data, thereby saving time.

    摘要翻译: 用于在主微处理器和从微处理器之间进行数据交换的方法和装置,其中连接是并行总线,并且数据交换需要最少的时间。 为此,以预定的顺序发送数据,其中发送开始标识符是由主处理器产生的与数据传输专门相关的信号串。 优选地,主处理器和从处理器通过并行数据总线互连,并且插入诸如锁存器的缓冲存储器。 拨号触发器以从属处理器的中断输入连接到总线上,仅将特定指令(即命令+数据)置于总线上同时通知从属处理器来准备数据交换,从而节省时间 。

    Fuel injection process
    4.
    发明授权
    Fuel injection process 失效
    燃油喷射过程

    公开(公告)号:US4941449A

    公开(公告)日:1990-07-17

    申请号:US301752

    申请日:1989-01-05

    IPC分类号: F02D41/06 F02D41/34 F02D41/36

    CPC分类号: F02D41/365 F02D41/062

    摘要: In a process for fuel injection in a multiple-cylinder internal combustion engine, opening signals for the respective injection valves of the individual cylinders are produced as a function of reference signals which are synchronous with the crankshaft. All injection valves are first controlled jointly after the ignition switch is switched on and the sequential opening signals for the sequential fuel injection are produced after the synchronization has been recognized. In order that the sequential fuel injection be switched on rapidly after the start of the internal combustion engine or after a disruption of the synchronization, wherein the fuel quantity injected into opened inlet valves is to be minimized, the opening signals are fed to the injection valves in a simultaneous manner, at least in a phase (a) until the synchronization has been recognized. In addition, the opening signals are simultaneously fed to the injection valves of those cylinders in a phase (b) which have not yet been changed over to sequential operation.

    摘要翻译: PCT No.PCT / DE87 / 00281 Sec。 371日期1989年1月5日第 102(e)日期1989年1月5日PCT提交1987年6月23日PCT公布。 出版物WO88 / 00287 日期:1988年1月14日。在多缸内燃机中的燃料喷射过程中,作为与曲轴同步的参考信号的函数产生各个气缸的各个喷射阀的打开信号。 在点火开关接通之后,首先控制所有喷射阀,并且在识别出同步之后产生顺序燃料喷射的顺序打开信号。 为了在内燃机起动之后快速接通顺序燃料喷射或在同步中断之后,喷射到打开的进气阀中的燃料量最小化,打开信号被送入喷射阀 至少在阶段(a)中以同时的方式,直到同步被识别为止。 此外,打开信号同时被馈送到尚未改变为顺序操作的阶段(b)中的那些气缸的喷射阀。