Control method and controller for engine
    1.
    发明授权
    Control method and controller for engine 失效
    发动机控制方法及控制器

    公开(公告)号:US5605132A

    公开(公告)日:1997-02-25

    申请号:US570244

    申请日:1995-12-11

    IPC分类号: F02D41/14 F02D41/04 F02P5/15

    CPC分类号: F02D41/1498 F02D2200/1015

    摘要: An engine control method and apparatus wherein a combustion state in each cylinder of an internal combustion engine is detected based on the fluctuation the rotating angular speed of an engine. A correction control is performed to make the combustion states in each of the cylinders uniform, followed by the base value for the purpose of correction control is obtained when the fluctuation in the rotating angular speed is small.

    摘要翻译: 一种发动机控制方法和装置,其中基于发动机的旋转角速度的波动来检测内燃机的每个气缸中的燃烧状态。 执行校正控制以使每个气缸中的燃烧状态均匀,然后当旋转角速度的波动小时,获得用于校正控制的基值。

    Apparatus for controlling the fuel injection quantity
    2.
    发明授权
    Apparatus for controlling the fuel injection quantity 失效
    用于控制燃料喷射量的装置

    公开(公告)号:US5921226A

    公开(公告)日:1999-07-13

    申请号:US880444

    申请日:1997-06-24

    摘要: Disclosed is an apparatus for controlling the fuel injection quantity for an internal combustion engine. The apparatus includes an operating condition detecting unit for detecting the operating conditions of an internal combustion engine on the basis of the engine speed and the intake air amount or the internal pressure of an intake pipe, a purge control variable calculating unit for calculating the amount of the purge control on the basis of the detected operating conditions, an A/F ratio learning and calculating unit for learning the deviation from the desired A/F ratio control by inputting the effect of the disturbance due to the canister purge and performing the A/F ratio feedback control, a memory unit for storing the deviation learned by the calculating unit, and a fuel injection quantity calculation means unit for determining the fuel injection quantity by the amount of correction based on the result of the learned deviation and the A/F ratio deviation obtained by the A/F ratio control.

    摘要翻译: 公开了一种用于控制内燃机的燃料喷射量的装置。 该装置包括:操作状态检测单元,用于根据发动机转速和进气管的进气量或内部压力检测内燃机的运行状况;净化控制变量计算单元, 基于检测到的操作条件的清除控制; A / F比率学习和计算单元,用于通过输入由于吹扫引起的干扰的影响来学习与期望A / F比率控制的偏差,并执行A / F比反馈控制,用于存储由计算单元学习的偏差的存储单元和燃料喷射量计算装置单元,用于基于学习偏差的结果和A / F来确定燃料喷射量的校正量 通过A / F比率控制获得的比率偏差。

    Lean burn control method and device for internal combustion engine and
fuel injection quantity control method and device including same
    3.
    发明授权
    Lean burn control method and device for internal combustion engine and fuel injection quantity control method and device including same 失效
    内燃机精馏燃烧控制方法及装置及燃油喷射量控制方法及装置

    公开(公告)号:US5447137A

    公开(公告)日:1995-09-05

    申请号:US128137

    申请日:1993-09-29

    摘要: A control device for an internal combustion engine capable of conducting lean burn control, such as exhaust gas emission control, always optimally regardless of a timewise change of the internal combustion engine, variations in engines, and an environmental change. The control device includes a detector for detecting a burn condition of the internal combustion engine, a lean limit air-fuel ratio factor map, a lean burn feedback logic, an oxygen concentration sensor, and a feedback control logic for controlling an air-fuel ratio to a theoretical air-fuel ratio, wherein lean burn is performed at the middle point between the lean limit air-fuel ratio and the theoretical air-fuel ratio.

    摘要翻译: 无论内燃机的时间变化,发动机的变化和环境变化如何,能够始终最佳地进行能够进行稀燃控制的排气控制的内燃机的控制装置。 控制装置包括用于检测内燃机的燃烧状况的检测器,稀薄极限空燃比因子图,稀燃反馈逻辑,氧浓度传感器和用于控制空燃比的反馈控制逻辑 达到理论空燃比,其中在稀薄极限空燃比和理论空燃比之间的中点进行稀燃。

    Engine control system using learning control
    5.
    发明授权
    Engine control system using learning control 失效
    发动机控制系统采用学习控制

    公开(公告)号:US4991102A

    公开(公告)日:1991-02-05

    申请号:US215815

    申请日:1988-07-06

    IPC分类号: F02B1/04 F02D41/14 F02D41/24

    摘要: An engine control system is disclosed in which the air-fuel ratio is controlled by feedback in accordance with the oxygen concentration detected of the exhaust gas, and a feedback control system thereof separate learning compensation values for compensating for the changes of the input/output characteristics of an air flow meter and a fuel injector respectively. The engine control system comprises a device for detecting the engine intake air flow, a device for detecting the engine speed, a device for detecting the oxygen concentration of the exhaust gas, a device for calculating the error between actual and target air-fuel ratios from the oxygen concentration of the exhaust gas, a device for learning the changes in the input/output characteristics of the intake air flow, a detection device to determine a first compensation factor corresponding to the changes in the input/output characteristics thereof, a device for learning the changes in the input/output characteristics of the fuel injection device to determine a second compensation factor corresponding to the changes in the input/output characteristics thereof, a device for calculating a basic fuel injection amount from the first compensation factor, the engine speed and the intake air amount, a device for calculating a required fuel flow rate reducing the air-fuel ratio error from the basic fuel injection amount, the second compensation factor and the air-fuel ratio error, a device for generating a drive signal indicating the required fuel flow rate, and the device for injecting fuel into the intake air path in the engine in response to the drive signal indicating the required fuel flow rate.

    摘要翻译: 公开了一种发动机控制系统,其中通过根据排气检测到的氧气浓度的反馈来控制空燃比,并且其反馈控制系统分离用于补偿输入/输出特性的变化的学习补偿值 的空气流量计和燃料喷射器。 发动机控制系统包括用于检测发动机进气流量的装置,用于检测发动机转速的装置,用于检测排气的氧气浓度的装置,用于计算实际和目标空燃比之间的误差的装置, 排气的氧浓度,用于学习进气流的输入/输出特性的变化的装置,确定与其输入/输出特性的变化相对应的第一补偿因数的检测装置,用于 学习燃料喷射装置的输入/输出特性的变化,以确定与其输入/输出特性的变化相对应的第二补偿因子,用于从第一补偿因数计算基本燃料喷射量的装置,发动机转速 和进气量,用于计算所需燃料流量从基本上降低空燃比误差的装置 燃料喷射量,第二补偿系数和空燃比误差,用于产生指示所需燃料流量的驱动信号的装置,以及用于响应于驱动信号将燃料喷射到发动机的进气通道中的装置 指示所需的燃料流量。

    Control device for engine provided with electromagnetic driven intake valves and computer useable medium having computer readable program code for performing the control
    6.
    发明授权
    Control device for engine provided with electromagnetic driven intake valves and computer useable medium having computer readable program code for performing the control 失效
    具有电磁驱动进气阀的发动机控制装置和具有执行控制的计算机可读程序代码的计算机可用介质

    公开(公告)号:US06286478B1

    公开(公告)日:2001-09-11

    申请号:US09385373

    申请日:1999-08-30

    IPC分类号: F02D4100

    摘要: A control device employing a computer readable program code, for an engine is provided with an electromagnetic actuator controlling opening and closing operation of an intake valve in response to an electric driving signal. The device determines a target A/F based on a signal corresponding to a requested engine output value and a signal representing a driving condition of the engine, determines a requested intake air flow of a cylinder of the engine based on the signal representing a driving condition of the engine and the target A/F, and determines control values for opening and closing operation of an intake valve based on the requested intake air flow and the target A/F. The control values include at least one of a valve opening timing, a valve opening time and a maximum valve lifting amount of the intake valve. Electric driving signals are generated according to the control values.

    摘要翻译: 对于发动机采用计算机可读程序代码的控制装置设置有响应于电驱动信号控制进气门的打开和关闭操作的电磁致动器。 该设备基于与所请求的发动机输出值相对应的信号和表示发动机的行驶状态的信号来确定目标A / F,基于表示驾驶状况的信号来确定发动机气缸的所请求的进气流量 以及根据要求的进气量和目标A / F确定进气门的开闭动作的控制值。 控制值包括进气门的开阀正时,开阀时间和最大阀提升量中的至少一个。 根据控制值产生电驱动信号。

    Control apparatus and control method of internal combustion engine
    7.
    发明授权
    Control apparatus and control method of internal combustion engine 失效
    内燃机控制装置及控制方法

    公开(公告)号:US5727528A

    公开(公告)日:1998-03-17

    申请号:US820547

    申请日:1997-03-19

    摘要: A control apparatus of an internal combustion engine has: an air flow amount determining unit for determining a request intake air flow amount corresponding to a target output of an engine; a fuel flow amount determining unit for determining a request fuel flow amount to be supplied to the engine; an intake air amount limiting unit for outputting a predetermined limit value as an intake gas total amount value when the determined request intake air flow amount exceeds the predetermined limit value under a predetermined control condition; and a correcting unit for correcting the value of the request fuel flow amount so that the engine generates the target output on the basis of the request intake air flow amount and the limit intake air flow amount when the intake air amount of the engine is limited.

    摘要翻译: 内燃机的控制装置具有:空气量判定单元,其判定与发动机的目标输出对应的请求进气量; 燃料流量确定单元,用于确定要提供给发动机的要求燃料流量; 进气量限制单元,用于当在预定控制条件下所确定的请求进气流量超过预定极限值时,输出预定极限值作为进气总量值; 以及校正单元,用于校正所述请求燃料流量的值,使得当所述发动机的进气量被限制时,所述发动机基于所述请求进气流量和所述限制进气流量来生成所述目标输出。

    Fuel injection control apparatus and fuel injection method
    8.
    发明授权
    Fuel injection control apparatus and fuel injection method 失效
    燃油喷射控制装置和燃料喷射方法

    公开(公告)号:US06182647B2

    公开(公告)日:2001-02-06

    申请号:US09220799

    申请日:1998-12-28

    IPC分类号: F02D4114

    摘要: When a pulse width limitation control is carried out, an air-fuel ratio feedback correction control such as O2 feedback or an A/F (air-fuel ratio) learning correction control is prohibited or limited. When the pulse width limitation control is carried out, various kinds of factors for carrying out a basic injection amount are made a prohibition condition or a limitation condition, and when other operation conditions arise, the operability is not damaged.

    摘要翻译: 当进行脉冲宽度限制控制时,禁止或限制诸如O 2反馈或A / F(空燃比)学习校正控制的空燃比反馈校正控制。 当执行脉冲宽度限制控制时,用于执行基本注射量的各种因素被作为禁止条件或限制条件,并且当其它操作条件出现时,可操作性不被损坏。