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    • 4. 发明授权
    • Engine control device
    • 发动机控制装置
    • US07136739B2
    • 2006-11-14
    • US11102680
    • 2005-04-11
    • Toshiyuki MiyataKatsunori UedaKenichi NakamoriKoji Kawakita
    • Toshiyuki MiyataKatsunori UedaKenichi NakamoriKoji Kawakita
    • G01L3/26F02D45/00
    • F02D41/1497F02D37/02F02D41/0255F02D2041/228F02D2200/1015G01M15/11
    • An engine control device for detecting misfire of an engine. Based on a detected crank angle of the engine, an angular velocity at a first crank angle at which the engine speed is close to a minimum within one combustion cycle of each cylinder is calculated as a pre-combustion angular velocity, and an angular velocity at a second crank angle at which the engine speed is close to a maximum within the same combustion cycle is calculated as a post-combustion angular velocity. An amount of rotation variation caused between the first and second crank angles is calculated based on the pre-combustion and post-combustion angular velocities of the same combustion cycle, and is compared with a predetermined misfire criterion to determine whether or not misfire has occurred. When misfire is detected, a required operation is performed, for example, a warning lamp is turned on or the fuel supply quantity is increased.
    • 一种用于检测发动机失火的发动机控制装置。 基于发动机的检测到的曲柄角,计算在每个气缸的一个燃烧循环内发动机转速接近最小值的第一曲柄角处的角速度作为预燃角速度和 在相同的燃烧循环中发动机转速接近最大值的第二曲柄角被计算为后燃烧角速度。 基于相同燃烧循环的燃烧前燃烧角和后燃烧角速度来计算在第一和第二曲柄角之间产生的旋转变化量,并与预定的失火准则进行比较,以确定是否发生失火。 当检测到失火时,执行所需的操作,例如警告灯打开或燃料供应量增加。
    • 7. 发明申请
    • Air-fuel ratio control apparatus for multiple cylinder engine
    • 多缸发动机空燃比控制装置
    • US20050183706A1
    • 2005-08-25
    • US10875269
    • 2004-06-25
    • Katsunori UedaHideyuki HandaTakashi Kanda
    • Katsunori UedaHideyuki HandaTakashi Kanda
    • F02M25/08F01N9/00F02D41/00F02D41/04F02D41/08F02D41/14F02D41/34F02D45/00
    • F02D41/008F02D41/08F02D41/1454
    • An air-fuel ratio control apparatus for a multiple cylinder engine, having catalytic converters and air-fuel ratio sensors in an exhaust manifold, comprises exhaust air-fuel ratio variation determining means which determines a variation in exhaust air-fuel ratio between one cylinder and other cylinders in one cylinder group when an exhaust air-fuel ratio on one of the rich side and the lean side with respect to a predetermined value is detected as to the one cylinder twice in succession, an exhaust air-fuel ratio on the other one of the rich side and the lean side from the exhaust air-fuel ratio of the one cylinder, and combustion air-fuel ratio control means which feedback-compensates the quantity of fuel injected into the one cylinder, and feedback-compensated the quantity of fuel injected into the other cylinder in a direction opposite to the direction in which the quantity of fuel injected into the one cylinder is compensated.
    • 一种用于多缸发动机的空燃比控制装置,其具有排气歧管中的催化转化器和空燃比传感器,包括排气空燃比变化确定装置,其确定一个气缸和一个气缸之间的排气空燃比的变化 对于一个气缸连续两次检测到相对于预定值的丰富侧和倾斜侧之间的排气空燃比在一个气缸组中的其他气缸,另一个的排气空燃比 以及燃料空燃比控制装置,其对喷射到一个气缸中的燃料量进行反馈补偿,并对燃料量进行反馈补偿 以与喷射到一个气缸中的燃料量相对的方向注入另一个气缸。
    • 8. 发明授权
    • Air-fuel ratio control apparatus for multiple cylinder engine
    • 多缸发动机空燃比控制装置
    • US06988486B2
    • 2006-01-24
    • US10875269
    • 2004-06-25
    • Katsunori UedaHideyuki HandaTakashi Kanda
    • Katsunori UedaHideyuki HandaTakashi Kanda
    • F02M1/00
    • F02D41/008F02D41/08F02D41/1454
    • An air-fuel ratio control apparatus for a multiple cylinder engine, having catalytic converters and air-fuel ratio sensors in an exhaust manifold, comprises exhaust air-fuel ratio variation determining means which determines a variation in exhaust air-fuel ratio between one cylinder and other cylinders in one cylinder group when an exhaust air-fuel ratio on one of the rich side and the lean side with respect to a predetermined value is detected as to the one cylinder twice in succession, an exhaust air-fuel ratio on the other one of the rich side and the lean side from the exhaust air-fuel ratio of the one cylinder, and combustion air-fuel ratio control means which feedback-compensates the quantity of fuel injected into the one cylinder, and feedback-compensated the quantity of fuel injected into the other cylinder in a direction opposite to the direction in which the quantity of fuel injected into the one cylinder is compensated.
    • 一种用于多缸发动机的空燃比控制装置,其具有排气歧管中的催化转化器和空燃比传感器,包括排气空燃比变化确定装置,其确定一个气缸和一个气缸之间的排气空燃比的变化 对于一个气缸连续两次检测到相对于预定值的丰富侧和倾斜侧之间的排气空燃比在一个气缸组中的其他气缸,另一个的排气空燃比 以及燃料空燃比控制装置,其对喷射到一个气缸中的燃料量进行反馈补偿,并对燃料量进行反馈补偿 以与喷射到一个气缸中的燃料量相对的方向注入另一个气缸。