Diagnosing proper operability of a cylinder charge motion control device
    1.
    发明授权
    Diagnosing proper operability of a cylinder charge motion control device 失效
    诊断圆筒充电运动控制装置的正确可操作性

    公开(公告)号:US06763800B1

    公开(公告)日:2004-07-20

    申请号:US10248792

    申请日:2003-02-19

    IPC分类号: F02B3100

    摘要: A method for detecting improper operation of a charge motion control device (CMC) based on exhaust temperature is disclosed. It has been found that when the charge motion control device is switched between two positions, the exhaust temperature changes by as much as 100 degrees C. The expected exhaust temperature, based on commanded charge motion control device position and current engine operating condition, and the measured exhaust temperature are compared to determine whether the charge motion control device has failed to attain the desired position.

    摘要翻译: 公开了一种基于排气温度检测充电运动控制装置(CMC)的不正确操作的方法。 已经发现,当充电运动控制装置在两个位置之间切换时,排气温度变化高达100摄氏度。预期的排气温度基于指令的充电运动控制装置位置和当前的发动机运行状态,以及 比较测量的排气温度以确定充电运动控制装置是否未能达到所需的位置。

    Vapor purge control in an engine with a hybrid valvetrain
    3.
    发明授权
    Vapor purge control in an engine with a hybrid valvetrain 有权
    具有混合阀门的发动机中的蒸汽吹扫控制

    公开(公告)号:US06532944B1

    公开(公告)日:2003-03-18

    申请号:US09650180

    申请日:2000-08-29

    IPC分类号: F02M3302

    摘要: A fuel vapor recovery method and system are disclosed for an engine with a hybrid valvetrain, in which the intake valves are actuated by more than one type of device. Normal fuel vapor recovery purging relies on a depression in intake manifold pressure to cause the flow of purge gases through the fuel vapor recovery system and into the intake manifold. As the hybrid valvetrain engine is unthrottled over much of the engine operating map, purging the fuel vapor recovery system requires decreasing the intake manifold pressure to allow a purge condition. Making a transition to a condition with a depressed manifold pressure is the subject herein.

    摘要翻译: 公开了一种具有混合阀门的发动机的燃料蒸汽回收方法和系统,其中进气门由多于一种类型的装置致动。 正常的燃料蒸气回收清洗依赖于进气歧管压力的下降,以使净化气体流过燃料蒸汽回收系统并进入进气歧管。 由于混合式瓦楞纸发动机在大部分发动机操作图中未被调节,所以清除燃料蒸汽回收系统需要降低进气歧管压力以允许吹扫条件。 过渡到具有抑制歧管压力的病症是本文的主题。

    Method and system for transient load response in a camless internal combustion engine
    5.
    发明授权
    Method and system for transient load response in a camless internal combustion engine 有权
    无凸轮内燃机瞬态负载响应方法及系统

    公开(公告)号:US06431129B1

    公开(公告)日:2002-08-13

    申请号:US09648330

    申请日:2000-08-25

    IPC分类号: F01L134

    摘要: A method of operating an internal combustion engine in response to a transient load includes the steps of providing an air charge quantity required to produce a commanded air-fuel mixture within the combustion chamber, providing a fuel quantity required to produce a commanded air-fuel mixture within the combustion chamber, and displacing a quantity of the air-fuel mixture from the combustion chamber in response to the transient load. The method is especially advantageous for rapidly affecting engine response to transient loads resulting from sudden load change events, such as traction control, transmission shift and driver demand events.

    摘要翻译: 一种根据瞬时负载操作内燃机的方法包括以下步骤:提供在燃烧室内产生指令的空气 - 燃料混合物所需的空气装料量,从而提供生产指挥的空气 - 燃料混合物所需的燃料量 在燃烧室内,并且响应于瞬态负载而使一定量的空气 - 燃料混合物从燃烧室移位。 该方法特别有利于快速影响由突然的负载变化事件引起的瞬态负载的响应,例如牵引力控制,变速器换档和驾驶员需求事件。

    Bi-fuel Engine Using Hydrogen
    9.
    发明申请
    Bi-fuel Engine Using Hydrogen 审中-公开
    双燃料发动机使用氢气

    公开(公告)号:US20090071453A1

    公开(公告)日:2009-03-19

    申请号:US11855439

    申请日:2007-09-14

    IPC分类号: F02B43/10

    摘要: A method is disclosed for making a transition from fueling an engine with hydrogen to another fuel. That other fuel may be gasoline, a gasoline and alcohol mixture, or gaseous fuels, as examples. The other fuel has the capability of providing higher BMEP than the hydrogen because of better air utilization and because the other fuel occupies less volume of the combustion chamber. Because a desirable equivalence ratio to burn hydrogen is at 0.5 or less and a desirable equivalence ratio to burn other fuel is at 1.0, when a demand for BMEP that leads to a transition change from hydrogen fuel to the other fuel, the amount of air supplied to the engine is decreased to provide more torque and vice versa. During a transition in which liquid fuel supply is initiated, it may desirable to continue to provide some hydrogen, not leaner than 0.1 hydrogen equivalence ratio.

    摘要翻译: 公开了一种用于使从具有氢气的发动机加燃料到另一种燃料的过渡的方法。 例如,其他燃料可以是汽油,汽油和酒精混合物,或气体燃料。 另一种燃料具有比氢更高的BMEP能力,因为更好的空气利用率,并且因为其它燃料占据较少的燃烧室的体积。 因为燃烧氢气所需的等效比为0.5以下,燃烧其他燃料的期望当量比为1.0,当导致从氢燃料向另一燃料转变的BMEP的需求时,供给的空气量 到发动机减少以提供更多的扭矩,反之亦然。 在开始液体燃料供应的转变期间,可能需要继续提供一些氢,而不是比0.1氢当量比稀。