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    • 10. 发明授权
    • Electronic control apparatus for an internal combustion engine
    • 内燃机用电子控制装置
    • US4566069A
    • 1986-01-21
    • US652892
    • 1984-09-21
    • Takeshi HirayamaMatsuo AmanoShinichi SakamotoMasami ShiidaShirou Baba
    • Takeshi HirayamaMatsuo AmanoShinichi SakamotoMasami ShiidaShirou Baba
    • F02D41/34F02D41/24F02D45/00F02P5/15G01P3/489G08C15/06G05B15/02F02B5/02G01P3/48
    • F02D41/28
    • An engine control apparatus includes a microprocessor, a ROM for holding a program required for the operation of the microprocessor, and a RAM for holding data supplied from the microprocessor. Pulse signals representative of results of the arithmetic operations executed by the arithmetic unit on the basis of input signals available from various sensors as well as data stored in the memory in accordance with the program are supplied to actuators for controlling engine operations through an input/output circuit. The control apparatus further includes a counter for counting crank angle pulses produced in synchronism with rotation of the engine shaft, an interrupt request generating circuit for requiring an interrupt to the microprocessor when overflow occurs in the counter. In response to every interrupt request, the microprocessor causes the count value held in the RAM to be incremented by unity. After elapse of a period for measuring the rotational speed of the engine, the count value held in the counter of the input/output circuit is corrected by the number of overflows held in the RAM.
    • 发动机控制装置包括微处理器,用于保持微处理器操作所需的程序的ROM和用于保持从微处理器提供的数据的RAM。 表示运算单元根据从各种传感器获得的输入信号以及根据程序存储在存储器中的数据执行的算术运算结果的脉冲信号被提供给用于通过输入/输出来控制发动机运行的致动器 电路。 该控制装置还包括一个计数器,用于计数与发动机轴的旋转同步产生的曲轴转角脉冲;一个中断请求产生电路,用于在计数器发生溢出时要求微处理器中断。 响应于每个中断请求,微处理器使保持在RAM中的计数值加1。 在经过用于测量发动机的转速的时间段之后,通过保持在RAM中的溢出次数校正保持在输入/输出电路的计数器中的计数值。