Non-intrusive exhaust gas sensor monitoring
    52.
    发明授权
    Non-intrusive exhaust gas sensor monitoring 有权
    非侵入式废气传感器监测

    公开(公告)号:US08958974B2

    公开(公告)日:2015-02-17

    申请号:US13352931

    申请日:2012-01-18

    IPC分类号: F02D41/14

    摘要: A method of monitoring an exhaust gas sensor coupled in an engine exhaust is provided. The method comprises indicating exhaust gas sensor degradation based on a difference between a first set of estimated parameters of a rich operation model and a second set of estimated parameters of a lean operation model, the estimated parameters based on commanded lambda and determined lambda values collected during selected operating conditions. In this way, sensor degradation may be indicated with data collected in a non-intrusive manner.

    摘要翻译: 提供了一种监测联接在发动机排气中的废气传感器的方法。 该方法包括基于富运行模型的第一组估计参数与稀薄运行模型的估计参数的第二组之间的差异来指示排气传感器退化,基于指令λ和所确定的λ值的估计参数 选定的运行条件。 以这种方式,可以用非侵入式收集的数据来指示传感器劣化。

    Approach for Controlling a Vehicle Engine That Includes an Electric Boosting Device
    57.
    发明申请
    Approach for Controlling a Vehicle Engine That Includes an Electric Boosting Device 有权
    控制包括电动助力装置的车辆引擎的方法

    公开(公告)号:US20100300405A1

    公开(公告)日:2010-12-02

    申请号:US12474077

    申请日:2009-05-28

    IPC分类号: F02M7/00 F02M33/02 F02B33/00

    摘要: A method of operating a vehicle including an engine is provided The engine may include at least one cylinder, a boosting device to boost intake air to the at least one cylinder, a fuel tank, a fuel vapor canister to store fuel vapors vented from the fuel tank, and an emission control device to treat exhaust gas from the engine. The boosting device includes a compressor at least partially driven by an electric motor. The method includes during an engine cold start condition, operating the electric motor of the boost device to boost intake air, directing the boosted intake air through the fuel vapor canister to release a fuel vapor stored in the fuel vapor canister, directing the fuel vapor from the fuel vapor canister to the engine, and performing combustion in the at least one cylinder using the fuel vapor during the engine starting.

    摘要翻译: 提供了一种操作包括发动机的车辆的方法。发动机可以包括至少一个气缸,用于增加至少一个气缸的进气的升压装置,燃料箱,燃料蒸汽罐,以储存从燃料排出的燃料蒸汽 罐,以及用于处理来自发动机的废气的排放控制装置。 升压装置包括至少部分地由电动机驱动的压缩机。 该方法包括在发动机冷起动条件期间,操作升压装置的电动机以增加进气,引导升压的进气通过燃料蒸汽罐,以释放储存在燃料蒸汽罐中的燃料蒸气,将燃料蒸气从 燃料蒸汽罐到发动机,并且在发动机起动期间使用燃料蒸汽在至少一个气缸中进行燃烧。

    HYDROCARBON RETAINING AND PURGING SYSTEM
    58.
    发明申请
    HYDROCARBON RETAINING AND PURGING SYSTEM 有权
    油气保存和净化系统

    公开(公告)号:US20100024396A1

    公开(公告)日:2010-02-04

    申请号:US12182777

    申请日:2008-07-30

    IPC分类号: F01N3/023 F01N3/30 F01N3/031

    摘要: Method and systems are provided for operating an engine having a hydrocarbon retaining system coupled to an engine exhaust and an engine intake. One example method comprises, during an engine cold start, routing exhaust gas to the hydrocarbon retaining system to store hydrocarbons in the hydrocarbon retaining system. The method further comprises, during a first purging condition where the exhaust gas is at a first temperature, purging the hydrocarbon retaining system with at least exhaust gas, and during a second purging condition where the exhaust gas is at a second temperature, said second temperature being higher than said first temperature, mixing the exhaust gas with an amount of fresh air to form a purging gas mixture, and purging the hydrocarbon retaining system with said purging gas mixture.

    摘要翻译: 提供了用于操作具有耦合到发动机排气和发动机进气口的烃保持系统的发动机的方法和系统。 一个示例性方法包括在发动机冷启动期间将排气排放到烃保持系统以将碳氢化合物储存在烃保持系统中。 该方法还包括在排气处于第一温度的第一净化条件下,至少排出气体来清除烃保留系统,并且在废气处于第二温度的第二吹扫条件期间,所述第二温度 高于所述第一温度,将废气与一定量的新鲜空气混合以形成净化气体混合物,并用所述吹扫气体混合物吹扫所述烃保留系统。