Method and device for monitoring a heating up of an exhaust gas catalytic converter of an internal combustion engine
    1.
    发明授权
    Method and device for monitoring a heating up of an exhaust gas catalytic converter of an internal combustion engine 有权
    用于监测内燃机的排气催化转化器的加热的方法和装置

    公开(公告)号:US07661262B2

    公开(公告)日:2010-02-16

    申请号:US11117199

    申请日:2005-04-28

    IPC分类号: F01N3/00

    摘要: An internal combustion engine has an intake duct, at least one cylinder that takes in air via the intake duct and an exhaust gas duct, in which the exhaust gas catalytic converter is located, and into which the combusted air/fuel mixture is ejected from at least one cylinder. Depending on measurement values that are determined by sensors, input signals for the control of actuators of the internal combustion engine are generated by means of control functions based on torsional moment and by means of a dynamic charging model of the intake duct. A measurement is determined, which characterizes the difference of a desired air mass flow into the respective cylinder from an actual air mass flow into the cylinder. Depending on the measurement, a proper or improper heating up of the exhaust gas catalytic converter is identified.

    摘要翻译: 内燃机具有进气管道,至少一个气缸,其经由进气管道吸入空气,排气管道设置有排气管道,废气催化转化器位于其中,燃烧的空气/燃料混合物从其中喷出 至少一个气缸。 根据由传感器确定的测量值,通过基于扭矩的控制功能和通过进气管的动态充气模型来产生用于控制内燃机的致动器的输入信号。 确定测量,其表征从进入气缸的实际空气质量流到相应气缸中的期望空气质量流量的差异。 根据测量,确定废气催化转化器的正确或不正确的加热。

    Method and device for checking temperature values of a temperature sensor of an internal combustion engine
    2.
    发明申请
    Method and device for checking temperature values of a temperature sensor of an internal combustion engine 有权
    用于检查内燃机的温度传感器的温度值的方法和装置

    公开(公告)号:US20060120430A1

    公开(公告)日:2006-06-08

    申请号:US11294800

    申请日:2005-12-06

    IPC分类号: G01K15/00

    CPC分类号: G01K15/00

    摘要: In a method for checking temperature values of a temperature sensor of an internal combustion engine, a first temperature value is recorded during a first predefined time period close in time to an operating state of the starting of the internal combustion engine. With the method a check is made to determine whether a cold start of the internal combustion engine is present. An error in the first temperature value is detected if the cold start is detected and the first temperature value is greater than a temperature threshold value.

    摘要翻译: 在用于检查内燃机的温度传感器的温度值的方法中,在与内燃机起动的运行状态相近的第一预定时间段内记录第一温度值。 通过该方法,进行检查以确定内燃机的冷起动是否存在。 如果检测到冷启动并且第一温度值大于温度阈值,则检测第一温度值中的误差。

    Method and device for operating an internal combustion engine
    4.
    发明授权
    Method and device for operating an internal combustion engine 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US07676320B2

    公开(公告)日:2010-03-09

    申请号:US12210404

    申请日:2008-09-15

    IPC分类号: B60T7/12 F02M1/00

    摘要: In a lower partial load range of, a setpoint value of the mass flow of air into the combustion chambers is determined as a function of a predefined torque request such that it is greater than necessary for implementing the predefined torque request and large enough that individual exhaust packets can be differentiated from one another with the exhaust gas probe. Depending on the air/fuel ratio setpoint value, an actuator is actuated whose position affects the actual air mass flow. To implement the torque request, engine efficiency is simultaneously reduced by actuating another actuator. A measurement signal of the exhaust gas probe is detected. The air/fuel ratios of the exhaust packets are determined as a function of the measurement signal detected. At least one operating parameter affecting the air/fuel ratio in at least one of the cylinders is adapted as a function of the air/fuel ratios determined.

    摘要翻译: 在较低的部分负荷范围内,空气进入燃烧室的质量流量的设定值被确定为预定扭矩请求的函数,使得其大于实现预定扭矩请求所必需的程度,并且足够大以致各个排气 可以通过排气探针将分组彼此区分开。 根据空气/燃料比设定值,致动器被致动,其位置影响实际空气质量流量。 为了实现扭矩要求,通过致动另一个执行机构来同时降低发动机效率。 检测排气探头的测量信号。 排气包的空气/燃料比根据检测到的测量信号确定。 影响至少一个气缸中的空气/燃料比的至少一个操作参数适合于确定的空气/燃料比的函数。

    METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE IN STOP/START OPERATION
    5.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE IN STOP/START OPERATION 有权
    用于在停止/起动操作中控制内燃机的方法和装置

    公开(公告)号:US20090157284A1

    公开(公告)日:2009-06-18

    申请号:US12331559

    申请日:2008-12-10

    IPC分类号: F02D41/04

    摘要: In a method for controlling an internal combustion engine (1) for a motor vehicle in stop-start operation, the internal combustion engine (1) is operated in the idling operating state. If there is a request for switch-off of the internal combustion engine (1) the torque produced by the internal combustion engine (1) is reduced while fuel continues to be injected. The fuel injection is switched off if the speed of the internal combustion engine (1) reaches a predetermined minimum value. The torque produced by the internal combustion engine (1) is increased again if the request for switching off the internal combustion engine (1) is canceled before the minimum speed is reached.

    摘要翻译: 在停止启动操作中的用于控制机动车辆的内燃机(1)的方法中,内燃机(1)在空转运行状态下运转。 如果要求关闭内燃机(1),则内燃机(1)产生的扭矩减小,同时燃料继续喷射。 如果内燃机(1)的速度达到预定的最小值,则燃料喷射被关闭。 如果在达到最小速度之前取消关闭内燃机(1)的请求,则由内燃机(1)产生的扭矩再次增大。

    Method for avoiding misdetection in a diagnosis of a tank venting system
for a motor vehicle
    6.
    发明授权
    Method for avoiding misdetection in a diagnosis of a tank venting system for a motor vehicle 失效
    用于在机动车辆的罐式排气系统的诊断中避免错误检测的方法

    公开(公告)号:US6041648A

    公开(公告)日:2000-03-28

    申请号:US971489

    申请日:1997-11-17

    CPC分类号: F02M25/0809

    摘要: A method for avoiding misdetection in a diagnosis of a tank venting system for a motor vehicle includes deriving a statement about a fill level of a fuel tank by evaluating a signal of a pressure sensor in the tank venting system. To that end, prior to the diagnosis of the tank venting system, the pressure fluctuations are detected and compared with a threshold value. If the pressure fluctuations exceed the threshold value, then a conclusion is drawn that the fuel tank is full, and the diagnosis is not enabled.

    摘要翻译: 在用于机动车辆的罐排气系统的诊断中避免错误检测的方法包括通过评估罐排放系统中的压力传感器的信号来导出关于燃料箱的填充水平的陈述。 为此,在诊断罐排气系统之前,检测压力波动并将其与阈值进行比较。 如果压力波动超过阈值,则得出结论:燃油箱已满,诊断未启用。

    Method of monitoring a secondary air pump
    7.
    发明授权
    Method of monitoring a secondary air pump 失效
    监控二次空气泵的方法

    公开(公告)号:US5921077A

    公开(公告)日:1999-07-13

    申请号:US883034

    申请日:1997-06-26

    IPC分类号: F01N3/22 F01N11/00 F01N3/00

    摘要: A secondary air pump communicates through an air duct with an exhaust gas line of an internal combustion engine. A catalytic converter for cleaning exhaust gas is connected in the exhaust gas line. The secondary air mass pumped by the secondary air pump is measured with an air flow rate meter. A control unit compares the measured secondary air mass with the desired secondary air mass set by the control unit. If the measured secondary air mass differs from the set secondary air mass by more than a specified amount, then the control unit has detected a malfunction.

    摘要翻译: 二次空气泵通过空气管道与内燃机的排气管线连通。 用于净化废气的催化转化器连接在废气管线中。 由二次空气泵泵送的二次空气质量用空气流量计测量。 控制单元将所测量的二次空气质量与由控制单元设定的期望二次空气质量进行比较。 如果所测量的二次空气质量与设定的二次空气质量不同超过规定量,则控制单元检测到故障。

    Method for monitoring the functional capability of a tank venting system
for a motor vehicle
    8.
    发明授权
    Method for monitoring the functional capability of a tank venting system for a motor vehicle 失效
    用于监测机动车辆的罐排气系统的功能能力的方法

    公开(公告)号:US5572981A

    公开(公告)日:1996-11-12

    申请号:US510744

    申请日:1995-08-03

    CPC分类号: F02M25/0809

    摘要: A method for monitoring functional capability of a tank venting system for a motor vehicle, includes evacuation of the tank venting system through the use of negative pressure or vacuum prevailing in the suction tube of an internal combustion engine and assessing the system based on negative pressure buildup and negative pressure letup gradients. Additionally, besides other abnormal termination criteria, the dynamics of pressure changes are also monitored and the method is immediately discontinued, if pressure fluctuations are ascertained which exceed a predetermined measure.

    摘要翻译: 一种用于监测用于机动车辆的罐排放系统的功能能力的方法包括通过使用内燃机的吸入管中的负压或真空来排放罐排放系统,并基于负压力积聚来评估该系统 和负压放大梯度。 此外,除了其他异常终止标准之外,还监测压力变化的动力学,并且如果确定超过预定措施的压力波动,则方法立即停止。

    System and method for monitoring the feeding of secondary air into the exhaust as of an internal combustion engine
    9.
    发明授权
    System and method for monitoring the feeding of secondary air into the exhaust as of an internal combustion engine 有权
    用于监测二次空气进入内燃机排气的系统和方法

    公开(公告)号:US06973777B2

    公开(公告)日:2005-12-13

    申请号:US10637644

    申请日:2003-08-11

    摘要: The internal combustion engine has at least two partly separate exhaust systems in each of which are disposed a catalytic converter, and upstream thereof, a lambda probe. There is provided a secondary air pump and a number of individual secondary air lines, corresponding to the number of exhaust systems, for delivering secondary air to the respective exhaust systems. From the signal of at least one air mass meter, a value is determined for the total air mass flow introduced into the exhaust systems. In order to determine the air mass actually introduced into the individual exhaust systems, the output signals from the lambda probes in the exhaust systems are used to identify an uneven distribution of the air mass fed to the individual exhaust systems.

    摘要翻译: 内燃机具有至少两个部分分离的排气系统,每个排气系统设置有催化转化器,其上游设有λ探头。 提供了二次空气泵和多个独立的二次空气管线,对应于排气系统的数量,用于将二次空气输送到相应的排气系统。 根据至少一个空气质量计的信号,确定引入到排气系统中的总空气质量流量的值。 为了确定实际引入到各个排气系统中的空气质量,来自排气系统中的λ探针的输出信号用于识别供给各个排气系统的空气质量的不均匀分布。

    Method for checking the conversion capacity of a catalytic element for converting ozone
    10.
    发明授权
    Method for checking the conversion capacity of a catalytic element for converting ozone 失效
    用于检查用于转化臭氧的催化元件的转化能力的方法

    公开(公告)号:US06684629B2

    公开(公告)日:2004-02-03

    申请号:US10262241

    申请日:2002-10-01

    IPC分类号: F01N300

    CPC分类号: B01D53/8675 B01D2259/4558

    摘要: Method for checking the conversion capacity of a catalytic element for converting ozone where the catalytic element is provided as a vehicle radiator with a catalytic coating and the method of checking uses ozone sensors upstream and downstream of the radiator. The check is only carried out if predetermined enable conditions are satisfied. Only then are the values emitted by the sensors recorded and compared with one another. A variable which represents an uncorrected value for the quality of the conversion capacity is derived from this comparison. This variable is weighted as a function of at least one operating parameter of the vehicle. The weighted variable is compared with a predetermined threshold value, and, if the threshold value is exceeded, it is concluded that the conversion capacity of the radiator is insufficient.

    摘要翻译: 用于检测用于转换臭氧的催化元件的转化能力的方法,其中提供催化元件作为具有催化涂层的车辆散热器,并且检查方法使用在散热器上游和下游的臭氧传感器。 仅在满足预定使能条件的情况下进行检查。 只有这样,传感器发出的值被记录并相互比较。 从该比较中得出代表转换能力质量的未校正值的变量。 该变量被加权为车辆的至少一个操作参数的函数。 将加权变量与预定阈值进行比较,并且如果超过阈值,则得出结论,散热器的转换能力不足。