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119 条记录 (耗时 0.041 秒)

    System and method for boosted direct injection engine
    52.
    发明授权
    System and method for boosted direct injection engine 有权
    升压直喷发动机的系统和方法

    公开(公告)号：US07621256B2

    公开(公告)日：2009-11-24

    申请号：US11827157

    申请日：2007-07-10

    申请人： Ralph Wayne Cunningham ,  Graham Hoare ,  Michael Howard Shelby ,  Gopichandra Surnilla

    发明人： Ralph Wayne Cunningham ,  Graham Hoare ,  Michael Howard Shelby ,  Gopichandra Surnilla

    IPC分类号： F02D41/00

    CPC分类号： F02D13/0261 ,  F02B23/104 ,  F02B25/145 ,  F02B37/00 ,  F02B2075/125 ,  F02D13/0215 ,  F02D13/0249 ,  F02D41/0007 ,  F02D41/0032 ,  F02D41/405 ,  F02D2041/001 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/44

    摘要： An engine system, comprising of a combustion chamber selectively communicating with an intake manifold via at least an intake valve and an exhaust manifold via at least an exhaust valve, a turbocharger including a compressor operatively coupled to the intake manifold and a turbine operatively coupled to the exhaust manifold, wherein the turbocharger is configured to selectively boost intake manifold pressure greater than exhaust manifold pressure during at least one operating condition, a direct fuel injector configured to inject fuel directly into the combustion chamber, a spark plug configured to provide an ignition spark to the combustion chamber, a valve actuation system coupled to the intake valve and the exhaust valve configured to vary a relative timing of the intake valve and the exhaust valve and a control system communicatively coupled to the valve actuation system, the direct fuel injector, and the spark plug wherein during said at least one operating condition, the control system is configured to operate the valve actuation system to increase an overlap between exhaust valve opening and intake valve opening to increase an amount of air flowing through the combustion chamber from the intake manifold via the opened intake valve to the exhaust manifold via the opened exhaust valve, initiate an injection of fuel directly into the combustion chamber via the direct fuel injector after the exhaust valve has closed, and ignite said injected fuel by operating the spark plug to provide an ignition spark.

    摘要翻译： 一种发动机系统，包括经由至少一个进气门和至少一个排气阀与排气歧管选择性地与进气歧管连通的燃烧室，包括可操作地连接到进气歧管的压缩机的涡轮增压器和可操作地耦合到该进气歧管的涡轮机 排气歧管，其中所述涡轮增压器构造成在至少一个操作条件期间选择性地增加进气歧管压力大于排气歧管压力;配置成将燃料直接喷射到所述燃烧室中的直​​接燃料喷射器，被配置为提供点火火花 燃烧室，耦合到进气门的阀致动系统和被配置成改变进气门和排气门的相对定时的排气阀，以及可连通地联接到阀致动系统，直接燃料喷射器和 火花塞，其中在所述至少一个操作条件期间，所述控制 系统被配置为操作阀致动系统以增加排气门开口和进气门开度之间的重叠，以增加从进气歧管经过打开的进气门流经燃烧室的空气量经由打开的排气阀 在排气阀关闭之后通过直接燃料喷射器开始直接喷射到燃烧室中，并且通过操作火花塞来点燃所喷射的燃料以提供点火火花。

    Vehicle Misfueling Mitigation System and Method
    53.
    发明申请
    Vehicle Misfueling Mitigation System and Method 有权
    车辆补漏系统及方法

    公开(公告)号：US20090251302A1

    公开(公告)日：2009-10-08

    申请号：US12098169

    申请日：2008-04-04

    申请人： Ralph Wayne Cunningham ,  Mark William Peters

    发明人： Ralph Wayne Cunningham ,  Mark William Peters

    IPC分类号： B60Q1/00 ,  F02D41/00

    CPC分类号： F02D41/0025 ,  B60K2015/03361 ,  F02D19/0623 ,  F02D19/0628 ,  F02D19/0665 ,  F02D19/084 ,  F02D19/087 ,  F02D41/22 ,  F02D2200/0611 ,  Y02T10/36

    摘要： A method is provided to indicate improper fuel filling in a vehicle. An indicator is actuated if a proportion of alcohol in the fuel is outside a range of expected proportions. In some examples, the range corresponds to a non-flex fuel vehicle recommended range, or to a normal range for a low alcohol-content fuel, which may be between 0 and 15 percent alcohol by volume. The indicator may include a diagnostic code or a dash light. Further, the indicator may be actuated in combination with a mitigating action, which may involve adjustment of a fuel injector pulse width or an ignition spark timing, as examples.

    摘要翻译： 提供了一种用于指示车辆中不正确的燃料填充的方法。 如果燃料中的一部分酒精超出预期的比例范围，则指示器被致动。 在一些示例中，该范围对应于非柔性燃料车辆推荐范围，或者对于低酒精含量燃料的正常范围，其可以为醇的0至15体积％。 指示器可以包括诊断代码或仪表灯。 此外，作为示例，可以结合减轻动作来致动指示器，该减轻动作可以包括调节燃料喷射器脉冲宽度或点火火花正时。

    Engine control for low emission vehicle starting
    54.
    发明授权
    Engine control for low emission vehicle starting 有权
    低排放车辆启动发动机控制

    公开(公告)号：US07293406B2

    公开(公告)日：2007-11-13

    申请号：US10692413

    申请日：2003-10-22

    申请人： Donald James Lewis ,  James Michael Kerns ,  Matthew John Gerhart ,  Ralph Wayne Cunningham

    发明人： Donald James Lewis ,  James Michael Kerns ,  Matthew John Gerhart ,  Ralph Wayne Cunningham

    IPC分类号： F01N3/00

    CPC分类号： F01N3/222 ,  F01N3/2006 ,  F01N3/225 ,  F01N3/32 ,  F01N3/323 ,  F01N9/005 ,  F01N13/009 ,  F01N2430/06 ,  F01N2430/08 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/0255 ,  F02D41/064 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/602 ,  F02M26/21 ,  F02M26/47 ,  F02M26/55 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/47

    摘要： A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry. Further, a method is described for adaptively learning pump airflow using feedback from an exhaust gas oxygen sensor.

    摘要翻译： 用于对发动机排气中的排放控制装置进行快速加热的方法通过空气引入装置使添加到排气中的多余的空气。 在发动机冷启动之后，通过以稀空燃比和延迟点火正时操作发动机来操作发动机以将排气歧管温度升高到第一预定值。 一旦排气歧管达到预定温度值，则发动机被切换以运行丰富，空气通过空气引入装置添加。 排气中增加的空气和浓缩的废气燃烧，从而更快地产生热量和提高催化剂温度。 丰富的操作和多余的空气继续进行，直到发动机气流增加超过预选值，或者排放控制装置达到期望的温度值。 在排放控制装置达到所需温度之后，发动机基本上以化学计量运行。 此外，描述了使用来自排气氧传感器的反馈自适应地学习泵送气流的方法。

    Closed loop bias air/fuel ratio offset to enhance catalytic converter efficiency
    55.
    发明授权
    Closed loop bias air/fuel ratio offset to enhance catalytic converter efficiency 失效
    闭环偏置空气/燃料比偏移以提高催化转化器的效率

    公开(公告)号：US5974785A

    公开(公告)日：1999-11-02

    申请号：US786387

    申请日：1997-01-16

    申请人： Ralph Wayne Cunningham ,  Paul Chester Gaworecki ,  Patrick Joseph Curran

    发明人： Ralph Wayne Cunningham ,  Paul Chester Gaworecki ,  Patrick Joseph Curran

    IPC分类号： F01N3/20 ,  F02D41/02 ,  F01N3/00

    CPC分类号： F02D41/024 ,  F01N2430/06 ,  F01N3/20 ,  Y02T10/26

    摘要： A method and system for reducing time required for a catalyst to reach optimum operating temperature control an air/fuel ratio based on the catalyst temperature to supply excess air to the catalyst during closed loop lambda control. A lambda bias or offset is varied as a function of the catalyst temperature, engine speed, and engine load to bias the air/fuel ratio lean of the stoichiometric ratio. Excess air may be supplied to the catalyst for a predetermined period after a cold engine start or at any time that the catalyst temperature is below its optimum operating temperature for efficient conversion. The bias or offset is reduced to zero after the catalyst reaches a desired operating temperature or the predetermined time period expires.

    摘要翻译： 一种用于减少催化剂达到最佳操作温度所需时间的方法和系统，其基于催化剂温度控制空气/燃料比，以在闭环λ控制期间向催化剂供应过量的空气。 λ偏移或偏移作为催化剂温度，发动机转速和发动机负荷的函数而变化，以偏置化学计量比的空气/燃料比。 在发动机冷起动之后，或者在催化剂温度低于其最佳工作温度以便有效转化的任何时间，可以向催化剂供给过多的空气至预定的时间。 在催化剂达到所需工作温度或预定时间段到期后，偏压或偏移量减小到零。