Method and system for controlling a vehicle powertrain

    公开(公告)号:US10023194B2

    公开(公告)日:2018-07-17

    申请号:US14903310

    申请日:2014-07-03

    摘要: The invention relates to a method of controlling a vehicle powertrain including determining that a performance feature associated with the powertrain is outside of a desired performance range. A plurality of operation parameters that are associated with the powertrain are identified that have a relationship to the performance feature. An adjustment is automatically made to at least one of the identified operation parameters to thereby bring the performance feature closer to the desired performance range. Preferably, the relationship comprises a mathematical model that corresponds to how the operation parameters influence whether the performance feature is within the desired performance range, the method further comprising identifying an actuator failure associated with the powertrain; determining at least one of the operation parameters corresponding to the actuator failure; determining a value of the corresponding operation parameter that is indicative of the actuator failure; and using the determined value as a fixed value for the corresponding operation parameter in the mathematical model.

    Engine exhaust system and control system for an engine exhaust system

    公开(公告)号:US10443465B2

    公开(公告)日:2019-10-15

    申请号:US15327140

    申请日:2015-08-12

    摘要: An exhaust system for an internal combustion engine (28) for controlling the release of undesirable emissions from the engine comprises an exhaust pipe (32) for receiving an exhaust flow from the engine, an SCR catalyst (48) arranged in the exhaust flow and means (80) for determining the temperature of the SCR catalyst. A NOx absorber (38), such as a diesel oxidation and NOx absorber catalyst (DONAC), is located in the exhaust flow at a position upstream of the SCR catalyst (48) for absorbing and releasing NOx contained in the exhaust flow. Means is provided for controlling the NOx absorber (38) so as to control the release of NOx to the SCR catalyst (48) in dependence on the temperature of the SCR catalyst, thereby to effect active management of release of NOx from the DONAC (38).

    METHOD AND SYSTEM FOR CONTROLLING A VEHICLE POWERTRAIN
    6.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING A VEHICLE POWERTRAIN 有权
    用于控制车辆动力传动系统的方法和系统

    公开(公告)号:US20160144862A1

    公开(公告)日:2016-05-26

    申请号:US14903310

    申请日:2014-07-03

    摘要: The invention relates to a method of controlling a vehicle powertrain including determining that a performance feature associated with the powertrain is outside of a desired performance range. A plurality of operation parameters that are associated with the powertrain are identified that have a relationship to the performance feature. An adjustment is automatically made to at least one of the identified operation parameters to thereby bring the performance feature closer to the desired performance range. Preferably, the relationship comprises a mathematical model that corresponds to how the operation parameters influence whether the performance feature is within the desired performance range, the method further comprising identifying an actuator failure associated with the powertrain; determining at least one of the operation parameters corresponding to the actuator failure; determining a value of the corresponding operation parameter that is indicative of the actuator failure; and using the determined value as a fixed value for the corresponding operation parameter in the mathematical model.

    摘要翻译: 本发明涉及一种控制车辆动力系的方法,包括确定与动力系相关联的性能特征在期望的性能范围之外。 识别与动力系相关联的多个操作参数,其与性能特征具有关系。 对所识别的操作参数中的至少一个自动进行调整,从而使性能特征更接近期望的性能范围。 优选地,该关系包括对应于操作参数如何影响性能特征是否在期望的性能范围内的数学模型,该方法还包括识别与动力系相关联的致动器故障; 确定对应于致动器故障的操作参数中的至少一个; 确定指示致动器故障的相应操作参数的值; 并使用确定的值作为数学模型中相应的操作参数的固定值。