DISI INJECTION TIMING STRATEGY
    1.
    发明申请
    DISI INJECTION TIMING STRATEGY 审中-公开
    DISI注射时序策略

    公开(公告)号:US20070204599A1

    公开(公告)日:2007-09-06

    申请号:US11678094

    申请日:2007-02-23

    IPC分类号: F01N3/00

    摘要: A control strategy for a DISI engine fitted with a catalytic converter, for reducing the light off time of the catalyst during cold starts, which comprises setting the ignition timing for each engine cylinder and injecting at least a proportion of the fuel, the timing of the injection in relation to the ignition timing being varied as a function of an engine operating condition.

    摘要翻译: 配备有催化转化器的DISI发动机的控制策略,用于在冷启动期间减少催化剂的熄火时间,其包括设定每个发动机气缸的点火正时并注入燃料的至少一部分, 与点火正时相关的喷射作为发动机工作状态的函数而变化。

    Method for assisting with heating a catalytic converter of an internal combustion engine
    3.
    发明授权
    Method for assisting with heating a catalytic converter of an internal combustion engine 有权
    用于辅助加热内燃机的催化转化器的方法

    公开(公告)号:US07370628B2

    公开(公告)日:2008-05-13

    申请号:US11359176

    申请日:2006-02-22

    IPC分类号: F02B5/02

    摘要: The invention relates to a method for heating a catalytic converter which is arranged in the exhaust-gas path of an internal combustion engine with direct injection and spark ignition. In the method, a first fuel injection takes place in the intake stroke (E), whereas a second fuel injection begins in the combustion stroke after top dead center and prior to the spark ignition of the air/fuel mix. It is preferable for the second fuel injection to continue beyond the ignition instant until the pressure in the combustion chamber reaches the fuel injection pressure.

    摘要翻译: 本发明涉及一种用于加热催化转化器的方法,催化转化器布置在具有直接喷射和火花点火的内燃机的排气路径中。 在该方法中,在进气冲程(E)中进行第一燃料喷射,而在上止点之后并且在空气/燃料混合物的火花点火之前的燃烧冲程中开始第二燃料喷射。 优选地,第二燃料喷射继续超过点火时刻,直到燃烧室中的压力达到燃料喷射压力。

    Method for assisting with heating a catalytic converter of an internal combustion engine
    4.
    发明申请
    Method for assisting with heating a catalytic converter of an internal combustion engine 有权
    用于辅助加热内燃机的催化转化器的方法

    公开(公告)号:US20060185351A1

    公开(公告)日:2006-08-24

    申请号:US11359176

    申请日:2006-02-22

    IPC分类号: F01N3/00

    摘要: The invention relates to a method for heating a catalytic converter which is arranged in the exhaust-gas path of an internal combustion engine with direct injection and spark ignition. In the method, a first fuel injection takes place in the intake stroke (E), whereas a second fuel injection begins in the combustion stroke after top dead center and prior to the spark ignition of the air/fuel mix. It is preferable for the second fuel injection to continue beyond the ignition instant until the pressure in the combustion chamber reaches the fuel injection pressure.

    摘要翻译: 本发明涉及一种用于加热催化转化器的方法,催化转化器布置在具有直接喷射和火花点火的内燃机的排气路径中。 在该方法中,在进气冲程(E)中进行第一燃料喷射,而在上止点之后并且在空气/燃料混合物的火花点火之前的燃烧冲程中开始第二燃料喷射。 优选地,第二燃料喷射继续超过点火时刻,直到燃烧室中的压力达到燃料喷射压力。