Engine fuel control system
    1.
    发明授权
    Engine fuel control system 失效
    发动机燃油控制系统

    公开(公告)号:US4509478A

    公开(公告)日:1985-04-09

    申请号:US619476

    申请日:1984-06-11

    IPC分类号: F02D41/16 F02D41/08

    CPC分类号: F02D41/08

    摘要: A fuel control system for an internal combustion engine in which the idle fuel quantity is adjusted to maintain a predetermined desired idle speed and in which the transition between the idle fuel quantity and a scheduled off-idle fuel quantity is blended to provide for smooth engine operation.

    摘要翻译: 一种用于内燃机的燃料控制系统,其中调节怠速燃料量以保持预定的期望怠速,并且其中混合怠速燃料量与排出的怠速燃料量之间的过渡以提供平稳的发动机操作 。

    Transient injection timing control
    2.
    发明授权
    Transient injection timing control 失效
    瞬态喷射定时控制

    公开(公告)号:US4596221A

    公开(公告)日:1986-06-24

    申请号:US748405

    申请日:1985-06-24

    摘要: The timing of the injection of fuel to the cylinders of a diesel engine is normally determined in accordance timing values obtained from an empirically derived steady state timing schedule but is modified during transient engine operation by an amount determined in accordance with the cylinder-to-cylinder change in requested fuel amount. In light to moderate engine acceleration, the steady state timing value is modified by a correction amount which serves to retard the start of injection for effecting a reduction in engine noise and exhaust emissions. In periods of heavy engine acceleration, the steady state timing value is modified by a correction amount which serves to advance the start of injection to improve the engine performance. When the cylinder-to-cylinder change in requested fuel quantity indicates a return to substantially steady state engine operation, the correction amount is reduced in relation to the correction amount magnitude and the cylinder firing frequency.

    摘要翻译: 燃料喷射到柴油发动机的气缸的时间通常根据从经验导出的稳态时序计划获得的定时值来确定,但是在过渡发动机运行期间被修改了根据气缸到汽缸确定的量 更改所需燃料量。 在轻度到中等的发动机加速度下,稳态时间值被改变为用于延迟喷射开始以减少发动机噪声和废气排放的修正量。 在重型发动机加速期间,稳态定时值通过修正量进行修正,该修正量用于提高喷射开始以提高发动机性能。 当所要求的燃料量的气缸到缸的变化表明恢复到基本稳定的发动机运转时,校正量相对于校正量大小和气缸点火频率减小。

    Engine crankshaft position sensor
    4.
    发明授权
    Engine crankshaft position sensor 失效
    发动机曲轴位置传感器

    公开(公告)号:US4782692A

    公开(公告)日:1988-11-08

    申请号:US95867

    申请日:1987-09-14

    IPC分类号: G01M15/06 G01M15/00

    CPC分类号: G01M15/06

    摘要: A simulator for generating simulated crankshaft angle signals during rotation of an internal combustion engine for use as a backup to a sensor sensing the ring gear teeth is described. A number representing the time in terms of the pulses from a clock for the engine crankshaft to rotate through an angle equal to one-half the angular spacing of the teeth on the ring gear is determined based on the current engine speed. This number is continuously counted by a counter whose output comprises simulated crankshaft angle signals.

    摘要翻译: 描述了用于在内燃机旋转期间产生模拟曲轴角度信号以用于感测环形齿轮的传感器作为备用的模拟器。 基于目前的发动机转速来确定表示从发动机曲轴的时钟脉冲转动等于齿圈上的齿的角度间隔的角度的角度的时间的数字。 这个数字由输出包括模拟曲轴角度信号的计数器连续计数。

    Closed-loop control of a diesel engine
    5.
    发明授权
    Closed-loop control of a diesel engine 失效
    柴油机的闭环控制

    公开(公告)号:US5377651A

    公开(公告)日:1995-01-03

    申请号:US172977

    申请日:1993-12-27

    摘要: Closed-loop control of the quantity of diesel engine exhaust gas that is recirculated to an air intake of the engine responds to a degree of deviation of a sensed air inlet rate away from a desired air inlet rate. A series of dedicated adaptive correction values are selectively updated and stored in memory in response to the degree of deviation for corresponding engine operating ranges. Proportional and integral correction for air inlet rate deviations is thereby provided to an otherwise open-loop desired EGR quantity.

    摘要翻译: 再循环到发动机的进气口的柴油发动机排气量的闭环控制响应于所检测的空气入口速率偏离所需空气入口速率的程度。 响应于对应的发动机工作范围的偏差程度,一系列专用自适应校正值被有选择地更新并存储在存储器中。 因此,进气比偏差的比例和积分校正被提供给另外的开环期望的EGR量。