公开(公告)号：US20110079201A1

公开(公告)日：2011-04-07

申请号：US12574538

申请日：2009-10-06

申请人： Mark Peters ,  Eric A. Macke ,  Christopher Kragh ,  Robert Roy Jentz

发明人： Mark Peters ,  Eric A. Macke ,  Christopher Kragh ,  Robert Roy Jentz

IPC分类号： F02M33/02 ,  G08B21/00

CPC分类号： F02M25/0818

摘要： A method for operating a fuel vapor control system included in a vehicle having an internal combustion engine is provided. The method may include storing positive pressure or negative pressure in an isolated fuel tank, transferring at least a portion of the positive pressure or the negative pressure to an evaporation canister region, and determining degradation of the evaporation canister based on a pressure response of the evaporation canister region while the evaporation canister region is isolated from the fuel tank. In this way, it is possible to utilize pressure that may be passively generated in one portion of the system, even during shut-down engine operation, to verify the integrity of another portion of the system.

摘要翻译： 提供一种用于操作包括在具有内燃机的车辆中的燃料蒸汽控制系统的方法。 该方法可以包括将正压或负压存储在隔离的燃料箱中，将至少一部分正压力或负压转移到蒸发罐区域，以及基于蒸发器的压力响应确定蒸发罐的劣化 罐区域，而蒸发罐区域与燃料箱隔离。 以这种方式，即使在关闭发动机操作期间，也可以利用系统的一部分被动地产生的压力，以验证系统的另一部分的完整性。

公开(公告)号：US08439017B2

公开(公告)日：2013-05-14

申请号：US12574538

申请日：2009-10-06

申请人： Mark Peters ,  Eric A. Macke ,  Christopher Kragh ,  Robert Roy Jentz

发明人： Mark Peters ,  Eric A. Macke ,  Christopher Kragh ,  Robert Roy Jentz

IPC分类号： F02M33/02

CPC分类号： F02M25/0818

摘要： A method for operating a fuel vapor control system included in a vehicle having an internal combustion engine is provided. The method may include storing positive pressure or negative pressure in an isolated fuel tank, transferring at least a portion of the positive pressure or the negative pressure to an evaporation canister region, and determining degradation of the evaporation canister based on a pressure response of the evaporation canister region while the evaporation canister region is isolated from the fuel tank. In this way, it is possible to utilize pressure that may be passively generated in one portion of the system, even during shut-down engine operation, to verify the integrity of another portion of the system.

摘要翻译： 提供一种用于操作包括在具有内燃机的车辆中的燃料蒸汽控制系统的方法。 该方法可以包括将正压或负压存储在隔离的燃料箱中，将至少一部分正压力或负压转移到蒸发罐区域，以及基于蒸发器的压力响应确定蒸发罐的劣化 罐区域，而蒸发罐区域与燃料箱隔离。 以这种方式，即使在关闭发动机操作期间，也可以利用系统的一部分被动地产生的压力，以验证系统的另一部分的完整性。