Procedure to diagnose a leak in the fuel tank in a fuel tank ventilation system
    3.
    发明申请
    Procedure to diagnose a leak in the fuel tank in a fuel tank ventilation system 失效
    在燃油箱通风系统中诊断燃油箱泄漏的程序

    公开(公告)号:US20080034843A1

    公开(公告)日:2008-02-14

    申请号:US11880538

    申请日:2007-07-23

    IPC分类号: G01M3/04

    CPC分类号: G01M3/3263

    摘要: A method of diagnosing a fuel tank leak in a fuel tank ventilation system, comprising a fuel tank, an accumulator for fuel vapors and a fuel tank ventilation valve opening out into an intake manifold of an internal combustion engine, wherein the fuel tank, the accumulator and the fuel tank ventilation valve are connected by way of a system of lines and wherein the accumulator has an aeration line with a check valve, the method comprising: immediately before turning off the internal combustion engine, closing the check valve and opening the fuel tank ventilation valve to generate a vacuum in the fuel tank ventilation system; acquiring a vacuum degradation at specifiable points in time when the fuel tank ventilation valve is closed; opening of the check valve in order to bring about a pressure equilibrium with the ambient pressure; renewed closing of the check valve; acquiring a pressure increase emerging over at least a specifiable time interval and determination of a compensation variable; and inference about the presence of a leakage from behavior of the vacuum degradation over time, while taking into account behavior of the compensation variable over time.

    摘要翻译: 一种在燃料箱通风系统中诊断燃料箱泄漏的方法,包括燃料箱,用于燃料蒸汽的蓄能器和通向内燃机的进气歧管的燃料箱通风阀,其中燃料箱,蓄能器 并且所述燃料箱通风阀通过管线系统连接,并且其中所述蓄能器具有带止回阀的通气管,所述方法包括:在关闭所述内燃机之前,关闭所述止回阀并打开所述燃料箱 通风阀在燃油箱通风系统中产生真空; 在燃料箱通风阀关闭的可指定时间点获得真空退化; 打开止回阀以实现与环境压力的压力平衡; 更换关闭止回阀; 在至少可指定的时间间隔内获得压力增加并确定补偿变量; 并且在考虑到随时间推移的补偿变量的行为时,推断出随着时间的推移存在真空退化行为的泄漏。

    Procedure to diagnose a fuel tank ventilation system and device to implement the procedure
    4.
    发明申请
    Procedure to diagnose a fuel tank ventilation system and device to implement the procedure 有权
    诊断燃油箱通风系统的程序和实施程序的装置

    公开(公告)号:US20070239330A1

    公开(公告)日:2007-10-11

    申请号:US11731515

    申请日:2007-03-30

    IPC分类号: G01M17/00

    摘要: A procedure to diagnose a fuel tank ventilation system of a motor vehicle and a device to implement the procedure are proposed. The fuel tank ventilation system contains at least one first ventilation pathway discharging into the air intake area of the internal combustion engine downstream behind a supercharger as well as at least one second ventilation pathway discharging into the air intake area upstream in front of the supercharger. Provision is made for a diagnosis with at least two partial diagnoses, whereby the first partial diagnosis pertaining to the first ventilation pathway is implemented, if the intake manifold pressure in the discharge area of the first ventilation pathway is smaller than the fuel tank system pressure; and the second partial diagnosis pertaining to the second ventilation pathway is implemented, if the intake manifold pressure in the discharge area of the first ventilation pathway is greater than the fuel tank system pressure. An error signal is provided, if at least one of the partial diagnoses generates a partial error signal.

    摘要翻译: 提出了一种诊断机动车辆燃油箱通风系统和实施程序的装置。 燃料箱通风系统包括至少一个第一通风路径,其排出到增压器下游的内燃机的进气区域中,以及至少一个第二通风路径,其排出到增压器前面的上游的进气区域。 如果第一通风路径的排放区域中的进气歧管压力小于燃料箱系统压力,则进行具有至少两个部分诊断的诊断,由此执行与第一通气路径有关的第一部分诊断; 并且如果第一通风路径的排放区域中的进气歧管压力大于燃料箱系统压力,则实施与第二通气路径有关的第二部分诊断。 如果部分诊断中的至少一个产生部分误差信号,则提供错误信号。

    Method and arrangement for controlling a drive unit of a motor vehicle
    5.
    发明授权
    Method and arrangement for controlling a drive unit of a motor vehicle 有权
    用于控制机动车辆的驱动单元的方法和装置

    公开(公告)号:US06251044B1

    公开(公告)日:2001-06-26

    申请号:US09374118

    申请日:1999-08-16

    申请人: Martin Streib

    发明人: Martin Streib

    IPC分类号: F16H5948

    摘要: A method and an arrangement for controlling a drive unit of a motor vehicle wherein at least one of the following quantities is determined: torque, power or throttle flap angle. This quantity is compared to the maximum permissible value and, when the maximum permissible value is exceeded by the determined quantity, fault reaction measures are initiated. The maximum permissible value is formed in dependence upon the time-dependent change of the rpm of the drive unit.

    摘要翻译: 一种用于控制机动车辆的驱动单元的方法和装置,其中确定以下数量中的至少一个:扭矩,功率或节气门瓣角度。 将此数量与最大允许值进行比较,当超过确定数量的最大允许值时,启动故障反应措施。 最大允许值根据驱动单元的rpm的随时间变化而形成。

    Method of controlling an internal combustion engine
    6.
    发明授权
    Method of controlling an internal combustion engine 失效
    控制内燃机的方法

    公开(公告)号:US06109028A

    公开(公告)日:2000-08-29

    申请号:US970812

    申请日:1997-11-14

    申请人: Martin Streib

    发明人: Martin Streib

    CPC分类号: B60T17/02 Y10T477/87

    摘要: The invention relates to a method for controlling an internal combustion engine of a motor vehicle having an auxiliary force brake device wherein the auxiliary force is generated by coupling the brake actuation to the manifold pressure of the engine. In the method, the engine is operated with increased manifold pressure during the warm-up phase after a cold start. In the method, an actuation of the brake effects limiting the manifold pressure to a maximum value by intervening in the engine control. This maximum value is less than the value which would otherwise adjust under the same conditions without brake actuation.

    摘要翻译: 本发明涉及一种用于控制具有辅助力制动装置的机动车辆的内燃机的方法,其中通过将制动器致动联接到发动机的歧管压力而产生辅助力。 在该方法中,在冷起动后的预热阶段,发动机以增加的歧管压力运转。 在该方法中,制动器的致动通过介入发动机控制来将歧管压力限制在最大值。 该最大值小于在不使用制动器驱动的情况下在相同条件下调整的值。

    Method and arrangement for controlling the power of a drive unit of a
motor vehicle
    8.
    发明授权
    Method and arrangement for controlling the power of a drive unit of a motor vehicle 失效
    用于控制机动车辆的驱动单元的动力的方法和装置

    公开(公告)号:US5499952A

    公开(公告)日:1996-03-19

    申请号:US233415

    申请日:1994-04-28

    摘要: The invention is directed to a method and an arrangement for controlling the power of a drive unit of a motor vehicle wherein a power-output element is set on the basis of an operator-controlled element actuated by the driver and the power-output element can assume positions different with respect to the position of the operator-controlled element depending upon operating range. A maximum permissible position of the power-output element is determined on the basis of the position of the operator-controlled element as well as on the basis of data with respect to the operating range for function monitoring the setting of the power-output element and a fault is then detected when the actual position of the power-output element exceeds the maximum permissible value.

    摘要翻译: 本发明涉及一种用于控制机动车辆的驱动单元的功率的方法和装置,其中功率输出元件基于由驾驶员驱动的操作者控制元件而设置,并且功率输出元件可以 假设根据操作范围相对于操作者控制元件的位置不同的位置。 功率输出元件的最大允许位置基于操作者控制元件的位置,并且基于相对于功能监视的动作范围的数据,功率输出元件的设定和 当功率输出元件的实际位置超过最大允许值时,检测到故障。