公开(公告)号：US4250858A

公开(公告)日：1981-02-17

申请号：US56960

申请日：1979-07-12

申请人： Edmund Jeenicke ,  Winfried Klotzner ,  Clemens Meichle ,  Manfred Schenk ,  Ingo Gorille

发明人： Edmund Jeenicke ,  Winfried Klotzner ,  Clemens Meichle ,  Manfred Schenk ,  Ingo Gorille

IPC分类号： F02P5/15 ,  F02D5/00 ,  F02P5/04

CPC分类号： F02P5/1514 ,  Y02T10/46

摘要： An input-output unit carries out some of the operations previously carried out in the microcomputer controlling the ignition, injection, etc. processes so that the number of bits in the microprocessor can be reduced. The input-output unit includes a counter which furnishes speed-dependent or angle-dependent signals. During a predetermined angle of rotation or while a particular speed-dependent value is counted and down, a frequency proportional to the quantity of air in the air inlet is counted, the resultant air number transferred to the microprocessor where it is modified. The modified air number can be counted down in the same counter which was used to count down the speed-dependent signals. The time required for counting down the modified air number determines the injection time and/or the closing time for an electronic switch in the primary circuit of the ignition coil. When the angle-dependent signal is used, a further counter counts down the air number several times, each time generating an interrupt signal. The latter count is in the microprocessor and when a predetermined number has been received, the microprocessor furnishes a terminate signal ending the controlled process.

摘要翻译： 输入输出单元执行先前在微型计算机中进行的一些控制点火，喷射等处理的操作，使得可以减少微处理器中的位数。 输入 - 输出单元包括提供速度相关或取决于角度的信号的计数器。 在预定的旋转角度或者在特定的速度相关值被计数和下降时，计数与空气入口中的空气量成比例的频率，将合成的空气编号转移到微处理器进行修改。 修改后的空气数量可以在用于对速度依赖信号进行倒计数的同一个计数器中倒计时。 倒数改变的空气数量所需的时间决定点火线圈的初级回路中的电子开关的注入时间和/或关闭时间。 当使用与角度相关的信号时，每当产生中断信号时，另外一个计数器会对空气数进行多次倒数。 后一个计数在微处理器中，并且当已经接收到预定数量时，微处理器提供结束被控制过程的终止信号。