公开(公告)号：US4612894A

公开(公告)日：1986-09-23

申请号：US791526

申请日：1985-10-25

申请人： Yoshihisa Satoh ,  Susumu Akiyoma ,  Katsunori Ito ,  Katsuhiro Ina ,  Masumi Kinugawa ,  Atsushi Suzuki

发明人： Yoshihisa Satoh ,  Susumu Akiyoma ,  Katsunori Ito ,  Katsuhiro Ina ,  Masumi Kinugawa ,  Atsushi Suzuki

IPC分类号： F02D41/18 ,  F02M51/00

CPC分类号： F02D41/187

摘要： An engine control system has a heater and a temperature measuring element with a temperature-resistance characteristic. The heater and element are provided in the intake pipe of an engine. Heating, which initiated by a start pulse signal generated by an engine control unit in synchronism with engine rotation is supplied to the heater through a transistor. When the heater temperature has reached a reference temperature preset in accordance with the intake air temperature measured by the element, a comparator generates an output to deenergize the heater. The period of supplying the heating power is represented by a pulse signal from a flip-flop. This pulse signal is supplied as an airflow measurement signal to the engine control unit. The engine control unit calculates the basic fuel injection quantity and determines if the starting of the pulse signal received by the control unit falls within a predetermined period from the starting of the start pulse signal. If the starting has fallen outside the predetermined period, the output signal is considered to have been generated in response to a noise signal. In this case, a normal output signal next to the output signal generated in response to the noise signal is corrected.

摘要翻译： 发动机控制系统具有加热器和耐温特性的温度测量元件。 加热器和元件设置在发动机的进气管中。 由发动机控制单元产生的与发动机旋转同步的起动脉冲信号启动的加热通过晶体管供给加热器。 当加热器温度达到根据由元件测量的进气温度预设的参考温度时，比较器产生一个使加热器灭弧的输出。 提供加热功率的周期由来自触发器的脉冲信号表示。 该脉冲信号作为气流测量信号提供给发动机控制单元。 发动机控制单元计算基本燃料喷射量，并确定由控制单元接收到的脉冲信号的启动是否落在从开始脉冲信号开始的预定时间段内。 如果启动已经落在预定时间段之外，则输出信号被认为是响应于噪声信号而产生的。 在这种情况下，校正与响应于噪声信号而产生的输出信号相邻的正常输出信号。