Power-on reset circuit
    1.
    发明授权
    Power-on reset circuit 失效
    上电复位电路

    公开(公告)号:US4698531A

    公开(公告)日:1987-10-06

    申请号:US885861

    申请日:1986-07-15

    申请人: Keith L. Jones

    发明人: Keith L. Jones

    CPC分类号: H03K17/223 H03K3/356008

    摘要: An integrated-circuit power-on reset arrangement which starts in a known state due to transistor sizing and to a current mirror circuit at least initially holding a bistable circuit in a predetermined one of its states.

    摘要翻译: 一种集成电路上电复位装置,其由于晶体管尺寸调整而在已知状态下启动,并且至少初始地将双稳态电路保持在其预定状态中的电流镜电路。

    Method of estimating exhaust gas recirculation in an intake manifold for
an internal combustion engine
    3.
    发明授权
    Method of estimating exhaust gas recirculation in an intake manifold for an internal combustion engine 失效
    用于内燃机的进气歧管中的废气再循环的估计方法

    公开(公告)号:US5537977A

    公开(公告)日:1996-07-23

    申请号:US380865

    申请日:1995-01-30

    IPC分类号: F02P5/15 F02P5/14

    CPC分类号: F02P5/1516 Y02T10/46

    摘要: A method of estimating exhaust gas recirculation in an intake manifold for an internal combustion engine includes the steps of determining a volumetric efficiency value of the intake manifold, determining whether a speed of the engine is accelerating, getting a manifold unfilling constant if the speed of the engine is not accelerating, getting a manifold filling constant if the speed of the engine is accelerating, calculating a K-factor based on the volumetric efficiency value and either the manifold filling constant or manifold unfilling constant, and using the K-factor to modify spark of the engine.

    摘要翻译: 一种用于估计用于内燃机的进气歧管中的废气再循环的方法包括以下步骤:确定进气歧管的体积效率值,确定发动机的速度是否正在加速,如果速度为 发动机不加速,如果发动机的速度加速,总体填充常数,基于体积效率值和歧管填充常数或歧管不足常数计算K因子,并使用K因子修改火花 的发动机。

    Method of pulse width modulating an oxygen sensor
    4.
    发明授权
    Method of pulse width modulating an oxygen sensor 失效
    氧传感器脉宽调制方法

    公开(公告)号:US5596975A

    公开(公告)日:1997-01-28

    申请号:US575920

    申请日:1995-12-20

    IPC分类号: F02D41/14 G01N27/416

    CPC分类号: F02D41/1494

    摘要: A method for pulse width modulating a resistance element of an oxygen sensor. The method quickly heats the resistance element of the oxygen sensor soon after start of the engine with a relatively high duty cycle yielding wide pulse widths. During a mid oxygen sensor temperature range, the method decreasing the duty cycle and thereby the pulse width modulation. And, upon the oxygen sensor reaching peak operating temperature range, the method decreases the pulse width modulated voltage signal supplied to the oxygen sensor to relatively short duty cycled pulses.

    摘要翻译: 一种用于对氧传感器的电阻元件进行脉宽调制的方法。 该方法在具有较高占空比的发动机启动后不久将快速加热氧传感器的电阻元件,产生宽的脉冲宽度。 在氧传感器中间温度范围内,该方法降低了占空比,从而减小了脉宽调制。 并且,当氧传感器达到峰值工作温度范围时,该方法将提供给氧传感器的脉宽调制电压信号减小到相对较短的占空比循环脉冲。