Method and system for fuel vapor control
    42.
    发明授权
    Method and system for fuel vapor control 有权
    燃油蒸气控制方法与系统

    公开(公告)号:US09297340B2

    公开(公告)日:2016-03-29

    申请号:US14034424

    申请日:2013-09-23

    CPC classification number: F02M25/0809

    Abstract: Methods and systems are provided for identifying leaks on each of a fuel tank and a canister side of a fuel system using a single leak check module. A position of a switching valve coupled in the vapor line of the fuel system is adjusted to selectively couple the leak check module to either the fuel tank or the canister. Leak is detected based on a change in pressure at a reference orifice of the leak check module following applying of vacuum from a vacuum pump.

    Abstract translation: 提供了用于使用单个泄漏检查模块来识别燃料系统的燃料箱和罐侧的泄漏的方法和系统。 联接在燃料系统的蒸汽管线中的切换阀的位置被调整以选择性地将泄漏检查模块连接到燃料箱或罐。 基于从真空泵施加真空之后泄漏检查模块的基准孔处的压力变化来检测泄漏。

    Method For Monitoring For A Rupture In A Fuel Vapor Container
    43.
    发明申请
    Method For Monitoring For A Rupture In A Fuel Vapor Container 有权
    用于监测燃料蒸气容器破裂的方法

    公开(公告)号:US20160084207A1

    公开(公告)日:2016-03-24

    申请号:US14892877

    申请日:2014-04-23

    Abstract: A method for monitoring for a rupture in a storage element of a fuel tank system having a fuel tank includes: detecting, by a mass flow sensor, thermal conductivity of an unmoved air mass in a first line of the fuel tank system; and identifying a rupture in the storage element if the detecting by the mass flow sensor detects a change in the thermal conductivity of the unmoved air mass in the first line when a second valve is in a closed state and/or when an air pump is at a standstill.

    Abstract translation: 一种用于监测具有燃料箱的燃料箱系统的存储元件中的破裂的方法,包括:通过质量流量传感器检测所述燃料箱系统的第一管路中的未移动空气质量的热导率; 以及当所述质量流量传感器的检测在第二阀处于关闭状态时检测到所述第一管路中的未移动空气质量的热导率的变化和/或当空气泵处于关闭状态时,识别所述存储元件中的破裂; 停顿了

    CANISTER PURGE VALVE SYSTEM
    44.
    发明申请
    CANISTER PURGE VALVE SYSTEM 有权
    CANISTER泵阀系统

    公开(公告)号:US20160076493A1

    公开(公告)日:2016-03-17

    申请号:US14483853

    申请日:2014-09-11

    Abstract: Systems and methods are described for a canister purge valve. A method comprises rotating an armature within a valve body in the canister purge valve as the canister purge valve opens and closes during a purge operation. The armature is encircled at a first end by an elastomer seal with multiple angled wings that enable rotation of the armature about a central longitudinal axis during the purge operation.

    Abstract translation: 碳罐清洗阀描述了系统和方法。 一种方法包括在清洗操作期间当排气阀打开和关闭时,使罐排气阀内的阀体中的电枢旋转。 电枢通过具有多个成角度的翼的弹性体密封件在第一端处环绕,使得能够在净化操作期间围绕中心纵向轴线转动衔铁。

    EVAPORATIVE SYSTEM
    45.
    发明申请
    EVAPORATIVE SYSTEM 审中-公开
    蒸发系统

    公开(公告)号:US20160069304A1

    公开(公告)日:2016-03-10

    申请号:US14678241

    申请日:2015-04-03

    Inventor: Paolo Guidi

    Abstract: An evaporative system is for an internal combustion engine. The internal combustion engine has an intake pipe equipped with a supercharger to pressurize intake air. The evaporative system includes an ejector, an ejector passage, and a pressure sensor. The ejector is to draw intake airflow from a downstream of the supercharger to an upstream of the supercharger to cause a negative pressure to draw fuel vapor into the upstream of the supercharger. The ejector passage is branched from the downstream of the supercharger and is returned through the ejector to the upstream of the supercharger. The pressure sensor is communicated with the ejector passage to detect pressure in the ejector passage.

    Abstract translation: 蒸发系统用于内燃机。 内燃机具有配有增压器的进气管,以对进气加压。 蒸发系统包括喷射器,喷射器通道和压力传感器。 喷射器将吸入气流从增压器的下游吸入增压器的上游,以使负压将燃料蒸气吸入增压器的上游。 喷射器通道从增压器的下游分支,并通过喷射器返回到增压器的上游。 压力传感器与喷射器通道连通以检测喷射器通道中的压力。

    SYSTEM AND METHOD FOR DIAGNOSING A DUAL PATH PURGE SYSTEM USING A HYDROCARBON SENSOR AND FOR DIAGNOSING A HYDROCARBON SENSOR IN A SINGLE PATH PURGE SYSTEM OR A DUAL PATH PURGE SYSTEM
    46.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSING A DUAL PATH PURGE SYSTEM USING A HYDROCARBON SENSOR AND FOR DIAGNOSING A HYDROCARBON SENSOR IN A SINGLE PATH PURGE SYSTEM OR A DUAL PATH PURGE SYSTEM 有权
    用于使用石油气传感器诊断双路渗透系统的方法和用于在单路渗透系统或双路渗流系统中诊断油气传感器的系统和方法

    公开(公告)号:US20160061153A1

    公开(公告)日:2016-03-03

    申请号:US14539108

    申请日:2014-11-12

    Inventor: SCOTT JEFFREY

    Abstract: A system according to the present disclosure includes a valve control module, a purge fraction module, and a diagnostic module. The valve control module opens a purge valve in an evaporative emissions system to allow purge vapor to flow to an intake system of an engine. The purge fraction module determines first and second fractions of purge vapor delivered to the engine relative to a total amount of air and purge vapor delivered to the engine based on first and second inputs, respectively. The first input is from a hydrocarbon sensor disposed in the evaporative emissions system of the engine. The second input is from an oxygen sensor disposed in an exhaust system of the engine. The diagnostic module selectively diagnoses a fault in at least one of the evaporative emissions system and the hydrocarbon sensor based on the first and second purge fractions when the purge valve is open.

    Abstract translation: 根据本公开的系统包括阀控制模块,吹扫分数模块和诊断模块。 阀控制模块在蒸发排放系统中打开净化阀,以允许吹扫蒸汽流入发动机的进气系统。 吹扫馏分模块基于第一和第二输入分别确定输送到发动机的吹扫蒸气的第一和第二馏分相对于总量和排放到发动机的净化蒸气的总量。 第一输入来自设置在发动机的蒸发排放系统中的烃传感器。 第二输入来自设置在发动机的排气系统中的氧传感器。 当清洗阀打开时,诊断模块基于第一和第二吹扫部分选择性地诊断至少一个蒸发排放系统和烃传感器中的故障。

    EVAPORATIVE EMISSIONS TESTING BASED ON HISTORICAL AND FORECAST WEATHER DATA
    47.
    发明申请
    EVAPORATIVE EMISSIONS TESTING BASED ON HISTORICAL AND FORECAST WEATHER DATA 有权
    基于历史和预报天气数据的蒸发排放测试

    公开(公告)号:US20160025589A1

    公开(公告)日:2016-01-28

    申请号:US14341571

    申请日:2014-07-25

    CPC classification number: G01M3/025 F02M25/0809

    Abstract: A method for a vehicle, comprising: initiating an engine-off natural vacuum test based on an ambient temperature change potential over a testing duration. The ambient temperature change potential may be based on historic weather data and further based on forecast weather data. In this way, the engine-off natural vacuum test may be executed only when conditions favor an in-tank temperature change significant enough to cause a threshold change in fuel tank pressure, thus reducing the number of aborted tests and increasing the test's overall performance metrics.

    Abstract translation: 一种用于车辆的方法,包括:在测试持续时间内基于环境温度变化电位启动发动机关闭自然真空测试。 环境温度变化的潜力可以基于历史天气数据,并且还基于预测的天气数据。 以这种方式,只有当条件有利于油箱内温度变化足够大以致燃料箱压力发生阈值变化时才能执行发动机关闭自然真空测试,从而减少中止测试的次数并提高测试的整体性能指标 。

    MOTORCYCLE
    48.
    发明申请
    MOTORCYCLE 有权
    摩托车

    公开(公告)号:US20160009329A1

    公开(公告)日:2016-01-14

    申请号:US14741358

    申请日:2015-06-16

    Abstract: A fuel tank is disposed between a head pipe and a rider's seat of a motorcycle. A combustion engine is disposed below the fuel tank, and a canister is disposed between the head pipe and the fuel tank. A check valve is disposed on a communication pipe unit which connects the canister and an air intake passage. Both ends of the first communication pipe are supported by the combustion engine through a throttle body and the check valve, respectively.

    Abstract translation: 燃料箱设置在摩托车的头管和骑手座之间。 燃料发动机设置在燃料箱的下方,并且罐位于头管和燃料箱之间。 止回阀设置在连接罐和进气通道的连通管单元上。 第一连通管的两端分别通过节气门体和止回阀由内燃机支撑。

    Apparatus and method of determining a leak condition of a fuel system
    49.
    发明授权
    Apparatus and method of determining a leak condition of a fuel system 有权
    确定燃料系统泄漏状况的装置和方法

    公开(公告)号:US09222444B2

    公开(公告)日:2015-12-29

    申请号:US13782287

    申请日:2013-03-01

    Inventor: Kurt D. McLain

    CPC classification number: F02M25/08 F02D33/003 F02M25/0809 F02M25/0818

    Abstract: A portion of a fuel system of a vehicle is disclosed. The vehicle includes a motor-generator-starter connected to an engine. The fuel system includes a fuel tank connected to the engine. The portion of the fuel system includes an evaporative emissions system and an evaporative emissions leak check system connected to the evaporative emissions system. The evaporative emissions leak check system includes a vacuum source. The vacuum source includes the motor-generator-starter connected to the engine. The motor-generator-starter actuates the engine when the vehicle is operated in a non-moving, keyed-off condition for creating a vacuum within an intake manifold of the engine. A method is also disclosed.

    Abstract translation: 公开了一种车辆燃料系统的一部分。 车辆包括连接到发动机的电动发电机起动器。 燃料系统包括连接到发动机的燃料箱。 燃料系统的一部分包括蒸发排放系统和连接到蒸发排放系统的蒸发排放泄漏检查系统。 蒸发排放泄漏检查系统包括一个真空源。 真空源包括连接到发动机的电动发电机起动器。 当车辆在不动的关闭状态下操作时,电动发电机起动器致动发动机,以在发动机的进气歧管内产生真空。 还公开了一种方法。

    METHOD FOR DIAGNOSING A FUEL TANK VENT VALVE
    50.
    发明申请
    METHOD FOR DIAGNOSING A FUEL TANK VENT VALVE 有权
    用于诊断燃油箱通气阀的方法

    公开(公告)号:US20150328980A1

    公开(公告)日:2015-11-19

    申请号:US14711247

    申请日:2015-05-13

    CPC classification number: F02M25/0809 B60K15/03519 B60K2015/03328

    Abstract: A method for diagnosing a fuel tank vent valve of a motor vehicle. In the method it is inferred, from a curve of a pressure p over time in a sub-chamber of the motor vehicle after a start-up of an internal combustion engine of the motor vehicle, as to whether the fuel tank vent valve is jammed open. The sub-chamber contains a fuel tank of the motor vehicle and is delimited by the fuel tank vent valve.

    Abstract translation: 一种用于诊断机动车辆的燃料箱排气阀的方法。 在该方法中,从机动车辆的内燃机起动之后,在机动车辆的子室中的压力p随时间的曲线推断燃料箱排气阀是否卡住 打开。 子室包含机动车辆的燃料箱,并且由燃料箱排放阀限定。

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