Engine Vacuum System
    1.
    发明申请
    Engine Vacuum System 审中-公开
    发动机真空系统

    公开(公告)号:US20110203269A1

    公开(公告)日:2011-08-25

    申请号:US13050647

    申请日:2011-03-17

    IPC分类号: B60T13/57 F15D1/00

    CPC分类号: B60T13/52 Y10T137/0318

    摘要: A vacuum pump onboard a vehicle provides vacuum for a brake booster and to control the electronic vacuum regulation valve (EVRV) valve of a wastegate on a turbocharger. Commands to the EVRV are based on an operating condition of an engine and the vacuum level in the vacuum system. In one example, a vacuum sensor is provided to determine vacuum proximate the EVRV. In another example, the vacuum proximate the EVRV is modeled based on the vacuum at the brake booster, which may be determined by a vacuum sensor coupled to the brake booster.

    摘要翻译: 车辆上的真空泵为制动助力器提供真空并且控制涡轮增压器上的废气门的电子真空调节阀(EVRV)阀。 EVRV的命令基于发动机的操作条件和真空系统中的真空水平。 在一个示例中,提供真空传感器以确定靠近EVRV的真空。 在另一个示例中,基于制动助力器处的真空来建模靠近EVRV的真空,其可以由耦合到制动助力器的真空传感器确定。

    Turbocharger control
    3.
    发明授权
    Turbocharger control 有权
    涡轮增压器控制

    公开(公告)号:US08572961B2

    公开(公告)日:2013-11-05

    申请号:US12821996

    申请日:2010-06-23

    IPC分类号: F02D23/00

    摘要: Various systems and methods for controlling a turbocharger of an engine via a wastegate are described. In one example, actuation of the wastegate is limited when outside a range, the limits of the range varying with boost pressure, turbine inlet pressure, turbine outlet pressure, and atmospheric pressure. In this manner, a tracking error may be reduced when controlling the boost pressure and using the boost pressure to actuate the wastegate in a boost-based wastegate configuration.

    摘要翻译: 描述了通过废气门控制发动机涡轮增压器的各种系统和方法。 在一个示例中,在超出范围的情况下限制废气门的致动,该范围的极限随着增压压力,涡轮机入口压力,涡轮机出口压力和大气压力而变化。 以这种方式,当控制升压压力并且使用增压压力以基于升压的废气门配置来致动废气门时,可以减小跟踪误差。