Hydrocarbon vapor evacuation system

    公开(公告)号:US06581580B2

    公开(公告)日:2003-06-24

    申请号:US09768770

    申请日:2001-01-24

    IPC分类号: F02M3302

    CPC分类号: F02M33/02

    摘要: A vapor evacuation system that is used to intermittently remove hydrocarbon vapors from vehicle components to an available vapor storage canister using an electrically controlled small flow rate vapor-handling pump. The vapor-handling pump is intermittently turned on and off as a function of ambient temperature or inlet manifold temperature and as a function of time since last engine-on operation.

    Method and system for determining a quantity of fuel to be injected into
an internal combustion engine
    2.
    发明授权
    Method and system for determining a quantity of fuel to be injected into an internal combustion engine 失效
    用于确定要注入内燃机的燃料量的方法和系统

    公开(公告)号:US6067965A

    公开(公告)日:2000-05-30

    申请号:US144150

    申请日:1998-08-31

    摘要: A method and system for determining a quantity of fuel to be injected into a multi-cylinder, internal combustion engine during each combustion event of the engine includes an air flow sensor for sensing a quantity of air flowing through the engine. An electronic control unit is operative to determine a desired combustion fuel quantity based on the quantity of air flowing through the engine and determine a desired fuel injection quantity based on a previous fuel injection quantity delivered during a previous combustion event and the desired combustion fuel quantity. The control unit is further operative to control the amount of fuel injected into the engine for the current combustion event based on the desired fuel injection quantity.

    摘要翻译: 在发动机的每个燃烧事件期间,用于确定要喷射到多缸内燃机中的燃料量的方法和系统包括用于感测流过发动机的空气量的空气流量传感器。 电子控制单元可操作以基于流过发动机的空气量来确定期望燃烧燃料量,并基于在先前燃烧事件期间输送的先前燃料喷射量和期望的燃烧燃料量来确定期望的燃料喷射量。 控制单元进一步操作以基于期望的燃料喷射量来控制喷射到发动机中用于当前燃烧事件的燃料量。

    Engine control with operating mode detection
    3.
    发明授权
    Engine control with operating mode detection 有权
    发动机控制与操作模式检测

    公开(公告)号:US06860244B2

    公开(公告)日:2005-03-01

    申请号:US10065681

    申请日:2002-11-08

    摘要: A system and method for detecting an operating mode of an engine or engine component modulate a first engine parameter and analyze a change in a second engine parameter in response to modulating the first engine parameter to detect a current operating mode based on changes in at least one of the first and second engine parameters. In a variable compression ratio (VCR) engine embodiment, the system and method modify ignition timing of at least one cylinder until engine knock is detected and determine whether the cylinder is operating in the lower compression ratio mode or the higher compression ratio mode by comparing the ignition timing change required to cause engine knock to a corresponding threshold.

    摘要翻译: 用于检测发动机或发动机部件的操作模式的系统和方法调节第一发动机参数并且响应于调制第一发动机参数来分析第二发动机参数的变化,以基于至少一个发动机参数的变化来检测当前运行模式 的第一和第二引擎参数。 在可变压缩比(VCR)发动机实施例中,系统和方法修改了至少一个气缸的点火正时,直到检测到发动机爆震,并且通过比较该压缩比模式或较高压缩比模式来确定气缸是否工作 发动机撞击所需的点火正时变化达到相应的阈值。

    Method to adapt engine fuel control, by multi-component vaporization method, to actual volatility quality of fuel
    4.
    发明授权
    Method to adapt engine fuel control, by multi-component vaporization method, to actual volatility quality of fuel 失效
    通过多组分蒸发法将发动机燃料控制调整为燃料的实际挥发性质量的方法

    公开(公告)号:US06460513B1

    公开(公告)日:2002-10-08

    申请号:US09995132

    申请日:2001-11-27

    IPC分类号: F02M5100

    摘要: A system (12) and method for controlling the injection of fuel into a cylinder (14) of an internal combustion engine (10) are provided. The system (12) includes a fuel injector (22), a temperature sensor (48), and an electronic control unit (ECU) (50). The fuel is parsed into a plurality of components based on the boiling points of elements of the fuel. ECU (50) stores mass fraction values for each component relative to the total mass of a sample of the fuel along with vaporization rates for each component. These values are used by the ECU (50) to account for different vaporization rates among fuel elements. In accordance with the invention, ECU (50) is further configured to adjust the mass fraction values responsive to the combustion air-fuel ratio and the engine temperature to account for the different volatility characteristics of various fuels.

    摘要翻译: 提供了一种用于控制将燃料喷射到内燃机(10)的气缸(14)中的系统(12)和方法。 系统(12)包括燃料喷射器(22),温度传感器(48)和电子控制单元(ECU)50。 基于燃料元素的沸点将燃料分解成多个组分。 ECU(50)存储每个部件相对于燃料样品的总质量的质量分数值以及每个部件的汽化速率。 ECU(50)使用这些值来解释燃料元件之间的不同汽化速率。 根据本发明,ECU(50)还被配置成响应于燃烧空燃比和发动机温度来调节质量分数值,以解决各种燃料的不同挥发性。