Procedure and control unit to operate a diesel engine
    1.
    发明申请
    Procedure and control unit to operate a diesel engine 有权
    操作柴油机的程序和控制单元

    公开(公告)号:US20080053077A1

    公开(公告)日:2008-03-06

    申请号:US11899108

    申请日:2007-09-04

    IPC分类号: F01N3/10

    摘要: A procedure is introduced to operate a diesel engine (10), which has a catalytic converter (24; 26) with three-way conversion characteristics. The procedure is characterized thereby, in that if the engine rotational speed (n) increases without in the process exceeding an engine rotational speed threshold value (n_S) and the engine's load (mk) is greater than a load threshold value (mk_S), the diesel engine (10) is operated in such a manner that the diesel engine (10) alternately generates an oxidizing and a reductive exhaust gas atmosphere before the catalytic converter (24; 26). Additionally a control unit (14) is introduced, which controls the sequence of the procedure.

    摘要翻译: 引入了具有三相转换特性的催化转化器(24; 26)的柴油发动机(10)的操作程序。 其特征在于,如果发动机转速(n)不超过发动机转速阈值(n_S)并且发动机负载(mk)大于负载阈值(mk_S)的情况下增加,那么, 柴油发动机(10)以使得柴油发动机(10)在催化转化器(24; 26)之前交替地产生氧化还原废气气氛的方式操作。 此外,引入控制单元(14),其控制过程的顺序。

    Method for operating an internal combustion engine
    3.
    发明授权
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07337658B2

    公开(公告)日:2008-03-04

    申请号:US10555127

    申请日:2004-04-06

    IPC分类号: G01M15/00

    摘要: A method is described for operating an internal combustion engine, in particular of a motor vehicle. In the method, a lean air/fuel mixture is burned in a combustion chamber; nitrogen oxides contained in the exhaust gas are stored in an accumulator-type catalytic converter; a storage efficiency, with which the accumulator-type catalytic converter stores the nitrogen oxides contained in the exhaust gas, is ascertained; and the storage efficiency is ascertained as a function of an instantaneous space velocity of the exhaust gases in the accumulator-type catalytic converter. Two efficiencies are ascertained at least as a function of the temperature of the accumulator-type catalytic converter and a space velocity. One of the two efficiencies is ascertained for a great space velocity, and the other efficiency is ascertained for a small space velocity. The storage efficiency is ascertained as a function of the instantaneous space velocity from the two efficiencies.

    摘要翻译: 描述了用于操作内燃机,特别是机动车辆的方法。 在该方法中,稀薄空气/燃料混合物在燃烧室中燃烧; 废气中含有的氮氧化物被储存在蓄能式催化转化器中; 确定蓄液式催化转化器储存废气中所含的氮氧化物的储存效率; 并且存储效率被确定为蓄能式催化转化器中废气的瞬时空速的函数。 至少根据蓄能式催化转化器的温度和空间速度来确定两个效率。 确定两个效率中的一个是很大的空间速度,另一个效率被确定为一个小的空间速度。 存储效率被确定为来自两种效率的瞬时空间速度的函数。

    Method for operating an internal combustion engine
    4.
    发明申请
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US20070163231A1

    公开(公告)日:2007-07-19

    申请号:US10555127

    申请日:2004-04-06

    IPC分类号: F01N3/00 F01N3/10 F01N7/00

    摘要: A method is described for operating an internal combustion engine, in particular of a motor vehicle. In the method, a lean air/fuel mixture is burned in a combustion chamber; nitrogen oxides contained in the exhaust gas are stored in an accumulator-type catalytic converter; a storage efficiency, with which the accumulator-type catalytic converter stores the nitrogen oxides contained in the exhaust gas, is ascertained; and the storage efficiency is ascertained as a function of an instantaneous space velocity of the exhaust gases in the accumulator-type catalytic converter. Two efficiencies are ascertained at least as a function of the temperature of the accumulator-type catalytic converter and a space velocity. One of the two efficiencies is ascertained for a great space velocity, and the other efficiency is ascertained for a small space velocity. The storage efficiency is ascertained as a function of the instantaneous space velocity from the two efficiencies.

    摘要翻译: 描述了用于操作内燃机,特别是机动车辆的方法。 在该方法中,稀薄空气/燃料混合物在燃烧室中燃烧; 废气中含有的氮氧化物被储存在蓄能式催化转化器中; 确定蓄液式催化转化器储存废气中所含的氮氧化物的储存效率; 并且存储效率被确定为蓄能式催化转化器中废气的瞬时空速的函数。 至少根据蓄能式催化转化器的温度和空间速度来确定两个效率。 确定两个效率中的一个是很大的空间速度,另一个效率被确定为一个小的空间速度。 存储效率被确定为来自两种效率的瞬时空间速度的函数。

    Method for operating an axhaust gas treatment device
    5.
    发明申请
    Method for operating an axhaust gas treatment device 审中-公开
    操作废气处理装置的方法

    公开(公告)号:US20050245352A1

    公开(公告)日:2005-11-03

    申请号:US11045175

    申请日:2005-01-27

    摘要: A method for operating an exhaust gas treatment device of an internal combustion engine in which a change in the operating mode of the internal combustion engine is made as a function of a parameter. A timer is started in response to an operative mode change request. During the time period set by the timer, the system continuously decides, based on evaluation of at least one parameter, whether the change in operating mode can be made. If this is the case, the operative mode change is made immediately. If this is not the case, the operative mode change is made no later than when the time period set by the timer has expired. The method ensures that a driver of a motor vehicle in which the internal combustion engine is provided for propulsion will not notice a torque jump of the internal combustion engine, possibly occurring during an operative mode change.

    摘要翻译: 一种用于操作内燃机的排气处理装置的方法,其中内燃机的操作模式的变化作为参数的函数。 响应于操作模式改变请求启动定时器。 在由定时器设定的时间段期间,系统基于至少一个参数的评估连续地决定是否可以进行操作模式的改变。 如果是这种情况,则立即进行操作模式的改变。 如果不是这种情况,则在不超过定时器设定的时间期限的情况下进行操作模式的变更。 该方法确保了提供用于推进的内燃机的机动车辆的驾驶员不会注意到可能在操作模式改变期间发生内燃机的转矩跳跃。

    Method for Operating an Internal Combustion Engine
    6.
    发明申请
    Method for Operating an Internal Combustion Engine 失效
    操作内燃机的方法

    公开(公告)号:US20080103673A1

    公开(公告)日:2008-05-01

    申请号:US11664373

    申请日:2005-08-18

    IPC分类号: F02D41/00

    摘要: A method for operating an internal combustion engine, in which fuel is injected into a combustion chamber of a cylinder of the internal combustion engine in at least two partial injections, and in which an actual torque supplied by the internal combustion engine is ascertained from operating variables of the internal combustion engine, this actual torque being compared to an admissible torque, and an error response being initiated if the actual torque is at a predefined ratio to the admissible torque. In the ascertainment of the actual torque, taking into consideration a torque efficiency of the respective partial injection is provided, whereby a more accurate monitoring of the actual torque is made possible.

    摘要翻译: 一种操作内燃机的方法,其中在至少两次部分喷射中将燃料喷射到内燃机的气缸的燃烧室中,并且其中由内燃机提供的实际转矩由操作变量确定 将该实际扭矩与容许扭矩进行比较,并且如果实际转矩与容许转矩成预定比例,则启动误差响应。 在确定实际转矩时,考虑到各个部分喷射的转矩效率,从而可以更精确地监视实际转矩。

    Method and device for safeguarding against manipulation of an odometer or a trip recorder
    8.
    发明授权
    Method and device for safeguarding against manipulation of an odometer or a trip recorder 有权
    用于防止操纵里程表或行程记录仪的方法和装置

    公开(公告)号:US06519516B2

    公开(公告)日:2003-02-11

    申请号:US09751066

    申请日:2000-12-28

    IPC分类号: B60R2510

    CPC分类号: G07C5/08

    摘要: A method of safeguarding against manipulation of an odometer or trip recorder in a motor vehicle, in which the instantaneous odometer reading is determined when the engine of the motor vehicle is stopped and that odometer reading is stored in an on-board control unit, in particular an engine control unit. Moreover, the instantaneous odometer reading of the odometer on restarting the engine is determined, and the odometer reading found on restarting the engine is compared with the stored odometer reading. Suitable measures are initiated for the case when the odometer reading found on restarting the engine and the stored odometer reading do not match.

    摘要翻译: 一种防止机动车辆里程表或行程记录器的操纵的方法,其中当机动车辆的发动机停止时确定瞬时里程表读数,并且将里程表读数存储在车载控制单元中 发动机控制单元。 此外,确定重新启动发动机时里程表的瞬时里程表读数,将重新启动发动机时发现的里程表读数与存储的里程表读数进行比较。 在重新启动发动机时发现的里程表读数和存储的里程表读数不匹配的情况下,启动适当的措施。

    Method for operating an internal combustion engine
    9.
    发明授权
    Method for operating an internal combustion engine 失效
    操作内燃机的方法

    公开(公告)号:US07500465B2

    公开(公告)日:2009-03-10

    申请号:US11664373

    申请日:2005-08-18

    IPC分类号: F02D41/30

    摘要: A method for operating an internal combustion engine, in which fuel is injected into a combustion chamber of a cylinder of the internal combustion engine in at least two partial injections, and in which an actual torque supplied by the internal combustion engine is ascertained from operating variables of the internal combustion engine, this actual torque being compared to an admissible torque, and an error response being initiated if the actual torque is at a predefined ratio to the admissible torque. In the ascertainment of the actual torque, taking into consideration a torque efficiency of the respective partial injection is provided, whereby a more accurate monitoring of the actual torque is made possible.

    摘要翻译: 一种操作内燃机的方法,其中在至少两次部分喷射中将燃料喷射到内燃机的气缸的燃烧室中,并且其中由内燃机提供的实际转矩由操作变量确定 将该实际扭矩与容许扭矩进行比较,并且如果实际转矩与容许转矩成预定比例,则启动误差响应。 在确定实际转矩时,考虑到各个部分喷射的转矩效率,从而可以更精确地监视实际转矩。

    Method and controller for exhaust gas temperature control
    10.
    发明授权
    Method and controller for exhaust gas temperature control 有权
    废气温度控制方法与控制器

    公开(公告)号:US07127882B2

    公开(公告)日:2006-10-31

    申请号:US11036420

    申请日:2005-01-14

    IPC分类号: F01N3/00 F01N3/10

    摘要: Described is a method for controlling a temperature downstream of a catalyst in the exhaust tract of an internal combustion engine including a first control loop in which a first control variable is calculated from a first deviation that is calculated from a first actual value and a first setpoint value and influences an intra-engine heat generation. In the process, the first actual value is determined as a measure of a temperature downstream of the catalyst. The method features a second control loop in which at least one second control variable is calculated from a second deviation that is calculated from a second actual value and a second setpoint value; a temperature upstream of the catalyst being determined as the second actual value. Also described is a controller which controls the sequence of such a method.

    摘要翻译: 描述了一种用于控制内燃机排气管中催化剂下游温度的方法,所述内燃机包括第一控制回路,其中根据从第一实际值和第一设定点计算出的第一偏差来计算第一控制变量 价值并影响发动机内部的发热。 在该过程中,第一实际值被确定为催化剂下游温度的量度。 该方法具有第二控制回路,其中根据从第二实际值和第二设定点值计算的第二偏差来计算至少一个第二控制变量; 将催化剂上游的温度确定为第二实际值。 还描述了控制这种方法的顺序的控制器。