PROCEDURE FOR DIAGNOSING A FUEL TANK VENTILATION SYSTEM OF A VEHICLE AND DEVICE FOR IMPLEMENTING THE PROCEDURE
    1.
    发明申请
    PROCEDURE FOR DIAGNOSING A FUEL TANK VENTILATION SYSTEM OF A VEHICLE AND DEVICE FOR IMPLEMENTING THE PROCEDURE 审中-公开
    车辆用燃油通风系统及执行程序的程序

    公开(公告)号:US20080264156A1

    公开(公告)日:2008-10-30

    申请号:US12105873

    申请日:2008-04-18

    IPC分类号: G01M15/09

    CPC分类号: G01M3/32

    摘要: A procedure for diagnosing a tank system of a vehicle with at least two controllable tank ventilation valves, with at least two points of release for a tank ventilation mixture, whereby at least a first point of release runs into an inlet manifold of a combustion engine downstream of a throttle device and at least a second point of release is arranged in an inlet manifold of the combustion engine upstream of the throttle device, especially upstream of a compressor, is thereby characterized, in that for diagnosing the functionality of the tank ventilation system the at least two tank ventilation valves are controlled independently of each other and its functionality can be implied due to the pressure that occurs in the tank system.

    摘要翻译: 用于诊断具有至少两个可控坦克通气阀的车辆的罐系统的程序,具有用于罐通风混合物的至少两个释放点,由此至少第一释放点进入内燃机下游的入口歧管 节气门装置的至少一个第二释放点布置在节流装置的上游,特别是压缩机上游的内燃机的入口歧管中,其特征在于,为了诊断油箱通风系统的功能, 至少两个油箱通风阀彼此独立地控制,并且由于在罐系统中发生的压力,其功能可以被暗示。

    Procedure to diagnose a fuel tank ventilation system and device to implement the procedure
    2.
    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。

    Diagnosis of the operability of fuel vapour intermediate stores
    3.
    发明授权
    Diagnosis of the operability of fuel vapour intermediate stores 失效
    燃油蒸汽中间商店的可操作性诊断

    公开(公告)号:US08529659B2

    公开(公告)日:2013-09-10

    申请号:US12990360

    申请日:2008-11-28

    IPC分类号: F02M25/08

    CPC分类号: F02M25/0809

    摘要: A method is provided for diagnosing the operability of fuel vapor intermediate stores (4), in particular of activated carbon filters, in tank-venting systems with at least one tank (3) and at least one fuel vapor intermediate store (4). In this case an actual change degree of filling of the fuel vapor intermediate store (4) is determined as a consequence of absorption or desorption processes of gaseous hydrocarbons in the fuel vapor intermediate store (4). The actual change in degree of filling is compared with a desired change in degree of filling and, from the comparison, a conclusion about the operability of the fuel vapor intermediate store (4) is drawn.

    摘要翻译: 提供了一种用于在具有至少一个罐(3)和至少一个燃料蒸汽中间储存器(4)的罐排放系统中诊断燃料蒸气中间储存器(4),特别是活性炭过滤器的可操作性的方法。 在这种情况下,作为燃料蒸汽中间存储器(4)中的气态烃的吸收或解吸过程的结果,确定燃料蒸气中间存储器(4)的实际改变程度。 将填充程度的实际变化与期望的填充程度的变化进行比较,并且从比较中可以得出关于燃料蒸气中间存储器(4)的可操作性的结论。

    DIAGNOSIS OF THE OPERABILITY OF FUEL VAPOUR INTERMEDIATE STORES
    4.
    发明申请
    DIAGNOSIS OF THE OPERABILITY OF FUEL VAPOUR INTERMEDIATE STORES 失效
    燃油蒸汽中间仓库的可操作性诊断

    公开(公告)号:US20110100210A1

    公开(公告)日:2011-05-05

    申请号:US12990360

    申请日:2008-11-28

    IPC分类号: B01D53/30 G01N33/00 G06F19/00

    CPC分类号: F02M25/0809

    摘要: A method is provided for diagnosing the operability of fuel vapor intermediate stores (4), in particular of activated carbon filters, in tank-venting systems with at least one tank (3) and at least one fuel vapor intermediate store (4). In this case an actual change degree of filling of the fuel vapor intermediate store (4) is determined as a consequence of absorption or desorption processes of gaseous hydrocarbons in the fuel vapor intermediate store (4). The actual change in degree of filling is compared with a desired change in degree of filling and, from the comparison, a conclusion about the operability of the fuel vapor intermediate store (4) is drawn.

    摘要翻译: 提供了一种用于在具有至少一个罐(3)和至少一个燃料蒸汽中间储存器(4)的罐排放系统中诊断燃料蒸气中间储存器(4),特别是活性炭过滤器的可操作性的方法。 在这种情况下,作为燃料蒸汽中间存储器(4)中的气态烃的吸收或解吸过程的结果,确定燃料蒸气中间存储器(4)的实际改变程度。 将填充程度的实际变化与期望的填充程度的变化进行比较,并且从比较中可以得出关于燃料蒸气中间存储器(4)的可操作性的结论。

    Procedure to diagnose a fuel tank ventilation system and device to implement the procedure
    5.
    发明授权
    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:US07400955B2

    公开(公告)日:2008-07-15

    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。

    Procedure for the functional diagnosis of an activateable fuel tank ventilation valve of a fuel tank system of an internal combustion engine
    6.
    发明授权
    Procedure for the functional diagnosis of an activateable fuel tank ventilation valve of a fuel tank system of an internal combustion engine 有权
    用于内燃机的燃料箱系统的可激活燃料箱通风阀的功能诊断程序

    公开(公告)号:US07578286B2

    公开(公告)日:2009-08-25

    申请号:US11656682

    申请日:2007-01-23

    IPC分类号: F02M33/02

    CPC分类号: F02M25/0809

    摘要: In a procedure for the functional diagnosis of an activateable fuel tank ventilation valve of the fuel tank system of an internal combustion engine, especially of a motor vehicle, whereby in specifiable time intervals when the fuel tank ventilation valve is activated to open, regeneration gas is added to the air drawn into the combustion chamber, whereby fuel is delivered to the combustion chamber, whereby the fuel, the air, respectively the fuel, the air and the regeneration gas are combusted in the combustion chamber and whereby by comparison of at least one operating parameter, which characterizes the combustion of fuel and intake air with the corresponding operating parameter, which characterizes the combustion of fuel, intake air and regeneration gas, inference can be made about the functional capability of the fuel tank ventilation valve, the HC-concentration of the regeneration gas is specifically affected by changing the regeneration gas stream.

    摘要翻译: 在用于特别是机动车辆的内燃机的燃料箱系统的可激活燃料箱换气阀的功能诊断的程序中,在燃料箱换气阀启动打开的可指定的时间间隔内,再生气体为 添加到被吸入燃烧室的空气中,由此燃料被输送到燃烧室,由此燃料,空气,燃料,空气和再生气体在燃烧室中燃烧,从而通过比较至少一个 运行参数,其特征在于燃料和进气的燃烧具有相应的操作参数,其特征在于燃料,进气和再生气体的燃烧,可以推断燃料箱通风阀的功能能力,HC浓度 的再生气体特别受到再生气体流的改变的影响。

    Procedure for the functional diagnosis of an activateable fuel tank ventilation valve of a fuel tank system of an internal combustion engine
    7.
    发明申请
    Procedure for the functional diagnosis of an activateable fuel tank ventilation valve of a fuel tank system of an internal combustion engine 有权
    用于内燃机的燃料箱系统的可激活燃料箱通风阀的功能诊断程序

    公开(公告)号:US20070267001A1

    公开(公告)日:2007-11-22

    申请号:US11656682

    申请日:2007-01-23

    IPC分类号: F02B47/08

    CPC分类号: F02M25/0809

    摘要: In a procedure for the functional diagnosis of an activateable fuel tank ventilation valve of the fuel tank system of an internal combustion engine, especially of a motor vehicle, whereby in specifiable time intervals when the fuel tank ventilation valve is activated to open, regeneration gas is added to the air drawn into the combustion chamber, whereby fuel is delivered to the combustion chamber, whereby the fuel, the air, respectively the fuel, the air and the regeneration gas are combusted in the combustion chamber and whereby by comparison of at least one operating parameter, which characterizes the combustion of fuel and intake air with the corresponding operating parameter, which characterizes the combustion of fuel, intake air and regeneration gas, inference can be made about the functional capability of the fuel tank ventilation valve, the HC-concentration of the regeneration gas is specifically affected by changing the regeneration gas stream.

    摘要翻译: 在用于特别是机动车辆的内燃机的燃料箱系统的可激活燃料箱换气阀的功能诊断的程序中,在燃料箱换气阀启动打开的可指定的时间间隔内,再生气体为 添加到被吸入燃烧室的空气中,由此燃料被输送到燃烧室,由此燃料,空气,燃料,空气和再生气体在燃烧室中燃烧,从而通过比较至少一个 运行参数,其特征在于燃料和进气的燃烧具有相应的操作参数,其特征在于燃料,进气和再生气体的燃烧,可以推断燃料箱通风阀的功能能力,HC浓度 的再生气体特别受到再生气体流的改变的影响。

    Diagnosis method and diagnosis chip for the determination of the bandwidth of optical fibers
    9.
    发明申请
    Diagnosis method and diagnosis chip for the determination of the bandwidth of optical fibers 有权
    用于确定光纤带宽的诊断方法和诊断芯片

    公开(公告)号:US20070065148A1

    公开(公告)日:2007-03-22

    申请号:US11374554

    申请日:2006-03-13

    IPC分类号: H04B10/08 H04B17/00

    CPC分类号: H04B10/07

    摘要: For determination of the bandwidth of optical fibers, the invention proposes a method which comprises the injection of light at a first optical power level and at a first frequency into an optical fiber, as well as the measurement of a first signal level as a function of the optical power level of the light passing through the fiber at the first frequency, the injection of light at the second optical power level and at a second frequency into the optical fiber, the measurement of a second signal level as a function of the optical power level of the light passing through the fiber at the second frequency, and the determination of the bandwidth of the fiber as a function of the first and second optical power levels and/or of the measured first and second signal levels using a predetermined rule which describes the frequency-dependant attenuation response of the fiber.

    摘要翻译: 为了确定光纤的带宽,本发明提出了一种方法,其包括将第一光功率电平和第一频率的光注入到光纤中,以及作为第一信号电平的函数的测量 以第一频率通过光纤的光的光功率电平,以第二光功率电平和第二频率将光注入到光纤中,测量作为光功率的函数的第二信号电平 以第二频率通过光纤的光的电平,以及使用描述的预定规则,确定作为第一和第二光功率电平和/或所测量的第一和第二信号电平的函数的光纤的带宽 光纤的频率依赖衰减响应。

    Venting system, in particular for a fuel tank
    10.
    发明授权
    Venting system, in particular for a fuel tank 有权
    通风系统,特别是燃油箱

    公开(公告)号:US09297717B2

    公开(公告)日:2016-03-29

    申请号:US13992895

    申请日:2011-11-25

    摘要: In a venting system, in particular for a fuel tank of a motor vehicle, which has a sorption filter for temporarily storing fuel evaporating from the fuel tank and a fluid-conveying conveying device situated between the sorption filter and an air supply or an intake manifold of an internal combustion engine, according to the present system, the conveying device is a bidirectional conveying device which is switchable in a first conveying direction in the direction of the internal combustion engine for regenerating the sorption filter and in a second conveying direction in the direction of the sorption filter for carrying out a fuel tank leak diagnosis.

    摘要翻译: 在通气系统中,特别是用于机动车辆的燃料箱,其具有用于临时储存从燃料箱蒸发的燃料的吸附过滤器和位于吸附过滤器与空气供应或进气歧管之间的流体输送输送装置 根据本系统,输送装置是双向输送装置,其能够沿内燃机的方向在第一输送方向上切换,用于再生吸附过滤器,并且沿第二输送方向 用于进行燃油箱泄漏诊断的吸附过滤器。