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    • 3. 发明授权
    • Fuel injection control system for cylinder injection type internal combustion engine
    • 气缸喷射式内燃机燃油喷射控制系统
    • US06227163B1
    • 2001-05-08
    • US09604967
    • 2000-06-28
    • Keiichi EnokiHirofumi OhuchiRyoji Nishiyama
    • Keiichi EnokiHirofumi OhuchiRyoji Nishiyama
    • F02B1700
    • F02D37/02F02B2075/125F02D41/3029F02D41/307F02D2041/389Y02T10/123
    • A fuel injection control system for a cylinder injection type internal combustion engine, which system suppresses occurrence of torque shock upon changeover of combustion modes while protecting combustion performance of the engine from degradation to thereby enhance drivability of a motor vehicle equipped therewith. The control system includes a means (21) for detecting cylinder-charged intake air quantity information (Qai), a means (22) for setting a combustion mode (M) of the engine, a means (24) for setting a desired air-fuel ratio (A/Fo), a means (25) for setting a desired intake air quantity (Qao) conforming to the combustion mode, a means (27) for setting a fuel injection quantity (Qf) for the fuel injector means (13) so that the desired air-fuel ratio (A/Fo) is realized, a means (26) for setting a throttle valve opening degree so that the desired intake air quantity can be realized, and a means (23) for changing over the combustion modes. The fuel injection quantity control means (27) is comprised of a combustion-mode-changeover-oriented fuel injection quantity control means (28) for altering the fuel injection quantity so that it changes in reverse phase relative to the change of the cylinder-charged intake air quantity upon changeover of the combustion modes.
    • 一种用于汽缸喷射型内燃机的燃料喷射控制系统,其在保护燃烧模式转换的同时抑制转矩冲击的发生,同时保护发动机的燃烧性能不劣化,从而提高装备有机动车辆的驾驶性能。 控制系统包括用于检测汽缸充气的进气量信息(Qai)的装置(21),用于设定发动机的燃烧模式(M)的装置(22),用于设定所需的空气 - 燃料喷射装置(13)的燃料喷射量(Qf)设定装置(27),燃料喷射装置(13)的燃料喷射量(Qf),燃料喷射装置 ),从而实现期望的空燃比(A / Fo),用于设定节气门开度使得能够实现所需进气量的装置(26),以及用于切换 燃烧模式。 燃料喷射量控制装置(27)包括用于改变燃料喷射量的燃烧模式转换方向燃料喷射量控制装置(28),使得燃料喷射量控制装置相对于汽缸充电 燃烧模式切换时的进气量。
    • 4. 发明授权
    • Control system for cylinder injection type internal combustion engine with exhaust gas recirculation feedback control
    • 具有排气再循环反馈控制的气缸喷射式内燃机控制系统
    • US06176227B1
    • 2001-01-23
    • US09359634
    • 1999-07-26
    • Hirofumi OhuchiKeiichi Enoki
    • Hirofumi OhuchiKeiichi Enoki
    • F02B7508
    • F02D41/3029F02D41/0042F02D41/0052F02D41/0057F02D41/1456F02D41/187F02D2041/389F02M25/08Y02T10/47
    • A control system for a cylinder injection type internal combustion engine is capable of realizing improvement of the combustion state and reduction of harmful components contained in an exhaust gas by enhancing an air-fuel ratio control accuracy in EGR control. The system includes an air flow sensor for detecting a quantity of intake air, an air-fuel ratio sensor for detecting an air-fuel ratio of exhaust gas, means for controlling exhaust gas recirculation quantity to a desired exhaust gas recirculation quantity by means of an exhaust gas recirculation regulating means, and means for setting a fuel injection quantity of the fuel injection valve in dependence on a controlled desired air-fuel ratio within engine cylinder, intake air quantity and injection mode being validated. The exhaust gas recirculation quantity control means performs a feedback control on the exhaust gas recirculation quantity so that the air-fuel ratio of the exhaust gas coincides with the desired exhaust gas air-fuel ratio.
    • 气缸喷射型内燃机的控制系统能够通过提高EGR控制中的空燃比控制精度来实现燃烧状态的改善和排气中含有的有害成分的减少。 该系统包括用于检测进气量的空气流量传感器,用于检测排气的空燃比的空燃比传感器,用于通过以下步骤将废气再循环量控制为期望废气再循环量的装置 废气再循环调节装置,以及用于根据发动机气缸内受控的所需空燃比设定燃料喷射阀的燃料喷射量的装置,进气量和喷射模式被验证。 排气再循环量控制装置对废气再循环量进行反馈控制,使得废气的空燃比与期望的排气空燃比一致。
    • 8. 发明授权
    • Engine controller
    • 发动机控制器
    • US5875762A
    • 1999-03-02
    • US17690
    • 1998-02-03
    • Kenichi TsuchiyaShiro YonezawaHirofumi OhuchiTadashi Tubakiji
    • Kenichi TsuchiyaShiro YonezawaHirofumi OhuchiTadashi Tubakiji
    • F02D9/02F02D11/10F02D41/24F02D41/08F02M3/07
    • F02D41/28F02D11/106
    • An engine controller includes various sensors for detecting a degree of throttle opening .theta. and a degree of accelerator opening .alpha. and a control unit 5 for determining the control amount .theta.c of a throttle actuator 1 from operating states, the control unit includes an A/D converter 70 for A/D converting respective degrees of opening at a predetermined resolving power, means 71 for calculating a target degree of throttle opening .theta.1 at a resolving power higher than the predetermined resolving power, means 72 for calculating a target degree of throttle opening .theta.2 at the predetermined resolving power in accordance with the target degree of throttle opening .theta.1 and means 73 for calculating a control amount in accordance with the target degree of throttle opening .theta.2, the target degree of throttle opening .theta.2 includes two points which are determined by the predetermined resolving power and control amount calculation means repeatedly controls the throttle actuator at a predetermined cycle using the target degree of throttle opening .theta.2 as the control amount under predetermined operating conditions. With this arrangement, the engine controller having a high speed and a pinpoint accuracy can be provided at a less expensive cost without using an expensive A/D converter.
    • 发动机控制器包括用于检测节气门开度θ和加速器开度α的各种传感器,以及用于确定节气门执行器1的运行状态的控制量θc的控制单元5,控制单元包括A / D 转换器70,用于以预定分辨率转换相应的开度;装置71,用于以高于预定分辨率的分辨率计算节气门开度θ1的目标程度;装置72,用于计算目标节气门开度 根据目标节气门开度θ1的预定分辨率的θ2和用于根据目标节气门开度θ2计算控制量的装置73,目标节气门开度θ2包括两点, 由预定的分辨力确定,并且控制量计算装置重复地控制节气门致动器 或者在预定的操作条件下使用目标节气门开度θ2作为控制量。 通过这种布置,可以在不使用昂贵的A / D转换器的情况下以较便宜的成本提供具有高速度和精确定位精度的发动机控制器。