公开(公告)号：US5058556A

公开(公告)日：1991-10-22

申请号：US638844

申请日：1991-01-08

申请人： Takao Fukuma ,  Keisuke Tsukamoto ,  Toshio Takaoka ,  Hirofumi Yamasaki

发明人： Takao Fukuma ,  Keisuke Tsukamoto ,  Toshio Takaoka ,  Hirofumi Yamasaki

IPC分类号： F02D35/00 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  G01N27/406

CPC分类号： G01N27/4065 ,  F02D41/148

摘要： A device for determining an activated condition of the oxygen sensor of a lean sensor for an electric-controlled fuel injection internal combustion engine. When the engine is under a fuel cut operation, the output level from the oxygen sensor is compared with a first predetermined threshold level or with a second predetermined threshold level which is lower than the first threshold level. A determination of the activated condition of the oxygen sensor is obtained when the output level from the oxygen once exceeds the higher first level, or when the output level from the oxygen sensor consecutively exceeds the higher first level twice, whereby a positive and quick determination of the activated condition of the oxygen sensor can be obtained.

摘要翻译： 一种用于确定用于电控燃料喷射内燃机的稀薄传感器的氧传感器的激活状态的装置。 当发动机处于燃料切断操作时，将来自氧气传感器的输出水平与第一预定阈值水平或低于第一阈值水平的第二预定阈值水平进行比较。 当来自氧气的输出水平一次超过较高的第一水平，或当来自氧气传感器的输出水平连续超过较高的第一水平两次时，可以确定氧传感器的激活状态，从而正确和快速地确定 可以获得氧传感器的激活状态。

公开(公告)号：US5056491A

公开(公告)日：1991-10-15

申请号：US504252

申请日：1990-04-04

申请人： Keisuke Tsukamoto

发明人： Keisuke Tsukamoto

IPC分类号： F02D41/04 ,  F02D41/10

CPC分类号： F02D41/10 ,  F02D41/045

摘要： An air-fuel ratio control system in an internal combustion engine, whereby an acceleration condition is detected to obtain an enrichment correction of a fuel injection amount. An occurrence of a mild acceleration is detected by calculating a value of a rate of change in a parameter of an engine load, such as a degree of opening of a throttle value, between adjacent timings, accumulating values of the rate of change of the engine load parameter during a sampling period, and comparing the accumulated value with a predetermined threshold value.

摘要翻译： 一种内燃机中的空燃比控制系统，由此检测加速条件以获得燃料喷射量的浓缩校正。 通过计算相邻定时之间的发动机负荷的参数（例如节气门值的打开程度）的变化率的值，累积发动机的变化率的值来检测轻度加速度的发生 在采样周期中的负载参数，以及将累积值与预定阈值进行比较。

公开(公告)号：US4643154A

公开(公告)日：1987-02-17

申请号：US769467

申请日：1985-08-26

申请人： Kiyotaka Matsuno ,  Masaomi Nagase ,  Keisuke Tsukamoto

发明人： Kiyotaka Matsuno ,  Masaomi Nagase ,  Keisuke Tsukamoto

IPC分类号： F02D41/04 ,  F02B3/06 ,  F02D41/00 ,  F02D41/20 ,  F02D41/40

CPC分类号： F02D41/401 ,  F02D41/408 ,  F02B3/06 ,  F02D2200/0406 ,  Y02T10/44

摘要： In determining the maximum injection timing most suitable for the time when the fuel injection reaches the maximum quantity at least as commensurate to an engine speed and an intake air pressure, the basic maximum injection timing most suitable for the time when the fuel injection reaches the maximum quantity under the atmospheric pressure as commensurate to an engine speed, and the basic maximum injection timing is corrected at least by an intake air pressure to provide the maximum injection timing, so that the maximum injection timing can be directly determined from an engine speed and an intake air pressure without determining the basic maximum injection quantity and the maximum injection quantity.

摘要翻译： 在确定最适合于当燃料喷射达到最大量至少与发动机转速和进气压力相当的时间的最大喷射时间时，最适合于燃料喷射达到最大值的时间的基本最大喷射正时 在大气压下的数量与发动机转速相当，并且至少通过进气压力校正基本最大喷射正时以提供最大喷射正时，使得最大喷射正时可以从发动机转速和 进气压力无需确定基本最大喷射量和最大喷射量。

公开(公告)号：US4590907A

公开(公告)日：1986-05-27

申请号：US704417

申请日：1985-02-22

申请人： Keisuke Tsukamoto ,  Masaomi Nagase ,  Kiyotaka Matsuno

发明人： Keisuke Tsukamoto ,  Masaomi Nagase ,  Kiyotaka Matsuno

IPC分类号： F02D41/14 ,  F02B1/04 ,  F02B3/06 ,  F02D41/00 ,  F02D41/04 ,  F02D41/34 ,  F02D41/40 ,  F02D31/00

CPC分类号： F02D41/0085 ,  F02D41/408 ,  F02B1/04 ,  F02B3/06 ,  F02D2200/0406 ,  F02D2200/0606 ,  F02D41/1498 ,  Y02T10/44

摘要： In effecting individual cylinder fuel injection control in an electronically controlled diesel engine, wherein rpm variations with every explosion cylinder are detected and compared with one another, the increase or decrease in the fuel injection quantity with every cylinder is learned until rpm variations of the respective cylinders become uniform, and a fuel injection quantity control actuator is controlled with every cylinder, so that engine vibrations due to a dispersion in fuel injection quantity between the cylinders can be controlled, an adaptive correction quantity is determined in accordance with an rpm variation deviation obtained from a difference between a mean rpm variation and rpm variations of the respective cylinders, and the engine temperature or the fuel temperature, and the fuel injection quantity control actuator is controlled with every cylinder in accordance with the adaptive correction quantity, to thereby prevent the divergence of the correction quantity.

摘要翻译： 在电子控制柴油发动机中实现单缸气体燃料喷射控制，其中检测到每个爆炸气缸的rpm变化并将其进行比较，每个气缸的燃料喷射量的增加或减少都将被学习，直到各个气缸的rpm变化 变得均匀，并且每个气缸控制燃料喷射量控制致动器，从而可以控制由于气缸之间的燃料喷射量的偏差引起的发动机振动，根据从 根据自适应校正量，通过每个气缸来控制各个气缸的平均转速变化和转速变化与发动机温度或燃料温度之间的差异以及燃料喷射量控制致动器，从而防止发散 校正量。