Starting apparatus, starting method, control method and exhaust filtration apparatus of internal combustion engine
    1.
    发明授权
    Starting apparatus, starting method, control method and exhaust filtration apparatus of internal combustion engine 失效
    内燃机起动装置,起动方法,控制方法和排气过滤装置

    公开(公告)号:US07093426B2

    公开(公告)日:2006-08-22

    申请号:US10621619

    申请日:2003-07-18

    IPC分类号: F01N3/00

    摘要: To improve startability and reduce the amount of HC emission at start-up with the aid of a construction where vaporized fuel is supplied to the bypass passage that bypasses the main passage.The main air control valve 16 is installed near the intake port 10 of the main air passage 3, and the main air control valve is closed or throttled at the time of start-up or additional injection from the port injection valve 5 is given in the beginning of start-up cranking. With a apparatus equipped with the main air control valve, vaporization of the fuel injected from the auxiliary injection valve 6 is facilitated in the beginning of cranking and also intake delay of the vaporized fuel is reduced, and hence startability can improve and the amount of HC emission at the time of start-up can decrease. With a apparatus where additional injection is given from the port injection valve 5 in the beginning of cranking, fuel supply into the cylinder is achieved quickly, and hence startability can improve and the amount of HC emission at the time of start-up can decrease.

    摘要翻译: 借助于将旁路通道的旁通通道供给汽化燃料的结构,来提高起动性并减少启动时HC排放量。 主空气控制阀16安装在主空气通道3的进气口10附近,并且在启动时关闭或节流主空气控制阀,或者从喷油阀5向喷油阀5提供附加喷射 开始启动起动。 使用装备有主空气控制阀的装置,在起动开始时便于从辅助喷射阀6喷射的燃料的蒸发,并且还减少汽化燃料的进气延迟,因此可以提高启动能力和HC的量 启动时的排放可能会下降。 利用在启动开始时从端口喷射阀5进行附加喷射的装置,能够快速地实现向气缸的供给,从而可以提高启动性,并且能够降低启动时的HC排放量。

    Engine controller
    2.
    发明授权
    Engine controller 有权
    发动机控制器

    公开(公告)号:US08150598B2

    公开(公告)日:2012-04-03

    申请号:US12470202

    申请日:2009-05-21

    IPC分类号: G06F19/00

    摘要: An engine controller capable of optimizing both the air-fuel ratio and the ignition timing to provide HC-minimized performance under the relevant driving conditions (environmental conditions) in order to minimize the amount of HC emitted from an engine at the time of start-up (before catalyst activation) is provided. The engine controller includes: air-fuel ratio control means for controlling the air-fuel ratio to be within a predetermined range (for example, 14.5 to 16.5) when the engine is operated at a certain driving condition (for example, in a state in which the catalyst is not activated such as the time of starting a cooler, or idling time); and ignition timing correction means for correcting the ignition timing to the retard side when the engine is operated at the certain driving condition and the air-fuel ratio is within the predetermined range.

    摘要翻译: 一种能够优化空燃比和点火正时两者的发动机控制器,以在相关驾驶条件(环境条件)下提供HC最小化的性能,以便在起动时最小化从发动机排出的HC的量 (催化剂活化之前)。 发动机控制器包括:空燃比控制装置,用于在发动机在某一行驶状态下操作时(例如,在一定的驾驶状态下)将空燃比控制在预定范围内(例如14.5至16.5) 催化剂未启动,例如启动冷却器的时间或空转时间); 以及点火正时校正装置,用于当发动机在特定驾驶状态下操作并且空燃比在预定范围内时,将点火正时校正到延迟侧。

    Knock detection device for an internal combustion engine
    3.
    发明授权
    Knock detection device for an internal combustion engine 失效
    内燃机爆震检测装置

    公开(公告)号:US5373448A

    公开(公告)日:1994-12-13

    申请号:US913890

    申请日:1992-07-16

    IPC分类号: G01L23/22 F02P5/14 F02P3/08

    CPC分类号: G01L23/225

    摘要: A knock detection device being provided with a plurality of digital filter units, each is designed to cover respective characteristic resonance vibration frequency components inherent to resonance vibration modes due to knocking and including first, second and third digital filters, the first digital filter being tuned to the center frequency of the characteristic resonance vibration frequency component, the second digital filter being tuned to a neighboring lower frequency and the third digital filter being tuned to a neighboring higher frequency. The maximum intensity among the three intensities determined by the first, second and third digital filters is determined as the intensity for the characteristic resonance vibration frequency component and the determined result is fed-back to the digital filter unit to correct the center frequency of the first digital filter to the frequency showing the maximum intensity, whereby the knocking is reliably detected without being affected by such factors as engine operating conditions and secular changes of the engine.

    摘要翻译: 一种爆震检测装置,其具有多个数字滤波器单元,每个都被设计成覆盖由于敲击引起的共振振动模式固有的各个特征共振振动频率分量,并且包括第一,第二和第三数字滤波器,第一数字滤波器被调谐到 特征共振振动频率分量的中心频率,第二数字滤波器被调谐到相邻较低频率,第三数字滤波器被调谐到相邻的较高频率。 由第一,第二和第三数字滤波器确定的三个强度中的最大强度被确定为特征共振振动频率分量的强度,并将所确定的结果反馈到数字滤波器单元,以校正第一, 数字滤波器到显示最大强度的频率,由此可以可靠地检测爆震,而不受发动机操作条件和发动机长期变化等因素的影响。

    Engine Control Apparatus
    4.
    发明申请
    Engine Control Apparatus 有权
    发动机控制装置

    公开(公告)号:US20090088948A1

    公开(公告)日:2009-04-02

    申请号:US12194128

    申请日:2008-08-19

    IPC分类号: F02D41/00

    摘要: An engine control apparatus for controlling the amount of the air flowing into each cylinder in accordance with the amount of the fuel flowing into the cylinder at the time of starting the engine is disclosed. Further, at the engine starting time, the target amount of the air flowing into the cylinder is calculated and/or the amount of the air flowing into the cylinder is controlled, based on the amount of the fuel flowing into the cylinder. The amount of the fuel remaining in the neighborhood of the engine intake port or in the intake pipe is calculated by being separated into a balanced liquid film amount and unbalanced liquid film amount. Based on the unbalanced liquid film amount, the injection fuel amount is corrected so that the amount of the fuel flowing into the cylinder is controlled with high accuracy.

    摘要翻译: 公开了一种发动机控制装置,用于根据在起动发动机时流入气缸的燃料量来控制流入每个气缸的空气量。 此外,在发动机起动时刻,基于流入气缸的燃料量,计算流入气缸的空气的目标量和/或流入气缸的空气量。 通过将平衡液膜量和不平衡液膜量分离来计算残留在发动机进气口或进气管附近的燃料量。 基于不平衡液膜量,校正喷射燃料量,使得以高精度控制流入气缸的燃料量。

    Engine Control Device
    6.
    发明申请
    Engine Control Device 有权
    发动机控制装置

    公开(公告)号:US20080228383A1

    公开(公告)日:2008-09-18

    申请号:US12018761

    申请日:2008-01-23

    IPC分类号: F02D35/02

    摘要: Exhaust emission control is exercised to restrict the exhaust amounts [g] of HC, CO, NOx, and the like. However, since the intake air amount for startup unduly increases due to an engine speed overshoot for startup, the exhaust amounts of HC, CO, and NOx increase excessively. Therefore, there is a need for optimizing the intake air amount for startup. The present invention proposes an engine startup control method that assures excellent startability and low exhaust emissions (small gas amount). Disclosed is an engine control device for starting an engine (from its stop state). The engine control device includes a section for setting a target engine operating state of each combustion; a section for detecting an actual engine operating state of each combustion; and a section for computing a control parameter for each subsequent combustion in accordance with the target engine operating state of each combustion and the actual engine operating state of each combustion.

    摘要翻译: 执行排气控制以限制HC,CO,NOx等的排气量[g]。 然而,由于由于起动时的发动机转速过冲而引起的起动用吸入量过度增加,所以HC,CO,NOx的排出量过度增加。 因此,需要优化起动时的吸入空气量。 本发明提出一种确保优异的起动性和低排气(小气量)的发动机起动控制方法。 公开了一种用于起动发动机(从其停止状态)的发动机控制装置。 发动机控制装置包括用于设定每个燃烧的目标发动机运转状态的部分; 用于检测每个燃烧的实际发动机运转状态的部分; 以及用于根据每次燃烧的目标发动机运转状态和每次燃烧的实际发动机运转状态计算每次后续燃烧的控制参数的部分。