CATALYST LIGHT-OFF TIME REDUCTION AND MAINTENANCE
    26.
    发明申请
    CATALYST LIGHT-OFF TIME REDUCTION AND MAINTENANCE 审中-公开
    催化剂灭火时间减少和维护

    公开(公告)号:US20160290308A1

    公开(公告)日:2016-10-06

    申请号:US14672761

    申请日:2015-03-30

    IPC分类号: F02P5/15 F01N3/20 F01N11/00

    摘要: A fast light-off time enhancement device and method may be used for an exhaust catalyst or particulate filter. The light-off time enhancement device may include a fuel injector, a carbon nano-tube injector, and a light source when active may generate heat. Heat generated thereby provides improving light-off time of the catalyst. Additionally, the same system may be used to generate heat to regenerate a particulate filter. An associated control system may be utilized to monitor vehicle parameters and determine the appropriate use of the light-off enhancement device.

    摘要翻译: 快速熄灭时间增强装置和方法可用于排气催化剂或微粒过滤器。 熄灭时间增强装置可以包括燃料喷射器,碳纳米管喷射器和当活动时可以产生热量的光源。 因此产生的热量提高了催化剂的熄灭时间。 另外,可以使用相同的系统来产生热量以再生微粒过滤器。 可以使用相关联的控制系统来监视车辆参数并确定关灯增强装置的适当使用。

    INTERNAL COMBUSTION ENGINE
    29.
    发明申请
    INTERNAL COMBUSTION ENGINE 有权
    内燃机

    公开(公告)号:US20160131091A1

    公开(公告)日:2016-05-12

    申请号:US14895765

    申请日:2014-04-09

    摘要: In the present invention, an internal combustion engine is provided with an in-cylinder fuel injection valve and a secondary air supply device and is formed so as to make possible first catalyst warming control and second catalyst warming control that promote the raising of the temperature of an exhaust gas purification catalyst. The first catalyst warming control comprises control to inject fuel from the in-cylinder fuel injection valve during the compression stroke to form a stratified state, and control to greatly delay ignition timing. The second catalyst warming control comprises control to supply secondary air to an engine exhaust gas passage. The internal combustion engine executes the first catalyst warming control after startup and, after the first catalyst warming control is executed, carries out control (third catalyst warming control) to execute the first catalyst warming control and the second catalyst warming control simultaneously.

    摘要翻译: 在本发明中,内燃机设置有缸内燃料喷射阀和二次空气供给装置,并且形成为可以进行第一催化剂升温控制和第二催化剂升温控制,以促进温度的升高 废气净化催化剂。 第一催化剂升温控制包括在压缩冲程期间从缸内燃料喷射阀喷射燃料以形成分层状态的控制,以及大大延迟点火正时的控制。 第二催化剂加温控制包括将二次空气供给到发动机废气通道的控制。 内燃机在启动后执行第一催化剂升温控制,并且在执行第一催化剂加温控制之后,同时执行第一催化剂加温控制和第二催化剂加温控制(第三催化剂加温控制)。

    Control device for internal combustion engine
    30.
    发明授权
    Control device for internal combustion engine 有权
    内燃机控制装置

    公开(公告)号:US09316163B2

    公开(公告)日:2016-04-19

    申请号:US14232772

    申请日:2011-08-31

    摘要: An object of the present invention is to enable a requested efficiency by cylinder group that is requested from a viewpoint of exhaust gas performance to be realized precisely when an internal combustion engine having a single throttle shared by a plurality of cylinder groups, and having an exhaust gas purifying catalyst for each of the cylinder groups is operated at a different air-fuel ratio at each of the cylinder groups. To this end, a control device for the internal combustion engine provided by the present invention calculates an efficiency ratio of a representative efficiency determined based on the requested efficiency by cylinder group and a requested efficiency by cylinder group, and calculates a requested torque by cylinder group by dividing a requested torque by the efficiency ratio for each of the cylinder groups. The control device controls an opening of the throttle in accordance with the requested torque, the representative efficiency based on the requested efficiency by cylinder group, and a target air amount calculated from a representative air-fuel ratio based on a target air-fuel ratio by cylinder group, and controls ignition timing for each of the cylinder groups, in accordance with a target efficiency by cylinder group that is calculated as a ratio of the requested torque by cylinder group and an estimated potential torque.

    摘要翻译: 本发明的目的在于,当具有由多个气缸组共享的单个节气门的内燃机并且具有排气时,能够精确地实现从排气性能的观点要求的气缸组所要求的效率 每个气缸组的气体净化催化剂在每个汽缸组中以不同的空燃比运行。 为此,本发明提供的用于内燃机的控制装置基于气缸组所要求的效率和气缸组所要求的效率来计算代表效率的效率比,并且通过气缸组计算所要求的扭矩 通过将所要求的扭矩除以每个气缸组的效率比。 控制装置根据所要求的扭矩控制节气门的开度,基于由气缸组所要求的效率的代表效率和基于目标空燃比的代表性空燃比计算出的目标空气量 并且根据以圆柱体组所要求的扭矩与估计的电位转矩的比率计算的气缸组的目标效率来控制每个气缸组的点火正时。