公开(公告)号：US4951647A

公开(公告)日：1990-08-28

申请号：US347626

申请日：1989-05-05

申请人： Koji Ezumi ,  Masaaki Miyazaki ,  Shoichi Washino ,  Hajime Kako

发明人： Koji Ezumi ,  Masaaki Miyazaki ,  Shoichi Washino ,  Hajime Kako

IPC分类号： F02D41/04 ,  F02D41/24

CPC分类号： F02D41/28 ,  F02D41/04 ,  F02D2200/704

摘要： An engine control apparatus comprises a throttle sensor, a pressure sensor for detecting a pressure in the intake manifold of an engine as a value of the absolute pressure, an engine revolution speed detector, a zone detector for detecting the fact that a signal value indicating a degree of opening of a throttle valve and a signal value indicating an engine revolution speed fall in a predetermined atmospheric pressure detection zone and a processing unit to calculate a value of atmospheric pressure by adding a set value to a signal of pressure upon detecting said values being in the detection zone. A timer may be provided to detect the fact that the signal values of the degree of opening of the throttle valve and the engine revolution speed are continuously in the atmospheric pressure detection zone for a predetermined time.

摘要翻译： 发动机控制装置包括节流传感器，用于检测发动机的进气歧管中的压力的​​压力传感器作为绝对压力值，发动机转速检测器，区域检测器，用于检测指示 节气门的打开程度和指示发动机转速的信号值落在预定的大气压力检测区域中;以及处理单元，用于通过在检测到所述值时将设定值与压力信号相加来计算大气压力值 在检测区。 可以设置定时器，以检测节气门的开度的信号值和发动机转速在大气压检测区域中连续预定时间的事实。

公开(公告)号：US4951634A

公开(公告)日：1990-08-28

申请号：US368631

申请日：1989-06-20

申请人： Hiroyuki Nishizawa ,  Kimito Kashiwabara ,  Osamu Nako ,  Mitsuaki Ishii ,  Kouichi Yamane ,  Masaaki Miyazaki ,  Ryoji Nishiyama

发明人： Hiroyuki Nishizawa ,  Kimito Kashiwabara ,  Osamu Nako ,  Mitsuaki Ishii ,  Kouichi Yamane ,  Masaaki Miyazaki ,  Ryoji Nishiyama

IPC分类号： F02D41/04 ,  F02D41/00 ,  F02D41/10 ,  F02D41/34

CPC分类号： F02D41/10

摘要： A fuel injector for a spark ignition internal combustion engine is disclosed, wherein the amount of injected fuel is increased by an extra amount when the engine is in a transient accelerating state. The air pressure within the air inlet passage to the engine is detected by an air pressure sensor, and the load condition is judged by comparing the detected pressure with a reference level. Further, the variation or increment of the detected pressure over each fuel injection period is calculated and compared with a high or a low threshold level selected in accordance with the load condition of the engine. Preferably, the high threshold level is selected when the high load condition continues over a predetermined length of time, the low threshold level being otherwise selected. The amount of transient extra increase is determined in accordance with the result of the comparison of the pressure variation with the selectd threshold level. On the other hand, the fundamental amount of injected fuel is calculated on the basis of an instantaneous current air pressure when the above amount of transient extra increase is not zero; otherwise, on the basis of an average of the pressure over the fuel injection period. The sum of the fundamental amount and the transient increase is injected in synchrony with every predetermined number pulse of the crank angle signal.

摘要翻译： 公开了一种用于火花点火内燃机的燃料喷射器，其中当发动机处于瞬态加速状态时，喷射燃料的量增加额外的量。 通过空气压力传感器检测到发动机的进气通道内的空气压力，并通过将检测到的压力与参考水平进行比较来判断负载状况。 此外，计算每个燃料喷射期间的检测压力的变化或增量，并将其与根据发动机的负载条件选择的高或低阈值水平进行比较。 优选地，当高负载条件在预定时间长度上继续时，选择高阈值电平，否则选择低阈值电平。 根据压力变化与选择阈值水平的比较的结果确定瞬时额外增加的量。 另一方面，当上述瞬时额外增加量不为零时，基于瞬时当前空气压力计算喷射燃料的基本量; 否则，基于燃料喷射期间的压力平均值。 基本量和瞬时增加的总和与曲柄角信号的每个预定数量的脉冲同步地注入。