Method for increasing an exhaust gas temperature of a spark-ignition, direct injection internal combustion engine
    1.
    发明授权
    Method for increasing an exhaust gas temperature of a spark-ignition, direct injection internal combustion engine 有权
    火花点火式直喷式内燃机的废气温度升高方法

    公开(公告)号:US07086221B2

    公开(公告)日:2006-08-08

    申请号:US10471640

    申请日:2002-02-22

    IPC分类号: F01N3/00

    摘要: The invention relates to a method for at least temporarily increasing an exhaust gas temperature of a spark-ignition, direction injection internal combustion engine (10) involving at least one measure, which is executed by the engine, whereby this at least one measure consists of a spark retarding and of a multiple injection (ME). During the multiple injection (ME), at least two fuel injections into the cylinder (12) are carried out within an induction cycle and compression cycle of a cylinder (12) of the internal combustion engine (10), and the latest of these injections ensues during a compression cycle of the cylinder (12). The invention also relates to the utilization of the method. According to the invention, a control end of an injection angle (αEE) of the latest injection is at least temporarily set to between 80 and 10° before an upper ignition dead center (ZOT) when operating with multiple injection and/or an ignition angle (αZ) is at least temporarily set to between 10 and 45° after the upper ignition dead center (ZOT) also when operating with multiple injection. A combination of both measures enables a dramatic acceleration of the warming up of a catalytic converter (16) that is connected downstream from the internal combustion engine (10).

    摘要翻译: 本发明涉及一种用于至少暂时提高火花点火的方向注射内燃机(10)的排气温度的方法,该内燃机涉及由发动机执行的至少一个措施,由此该至少一个措施由 火花塞和多重注射(ME)。 在多次喷射(ME)期间,在内燃机(10)的气缸(12)的感应循环和压缩循环内进行至气缸(12)中的至少两次燃料喷射,以及最近的这些喷射 在气缸(12)的压缩循环期间。 本发明还涉及该方法的应用。 根据本发明,当最后一次喷射的喷射角度(α×EE))的控制端至少临时设定在上点火死点(ZOT)之前的80°和10°之间,当与 当多次注射操作时,多个注射和/或点火角(αZZ)至少临时设定在上点火死死点(ZOT)之后的10°和45°之间。 两种措施的组合使得能够显着加速连接在内燃机(10)下游的催化转化器(16)的预热。

    Methods for controlling a fuel metering in the multiple injection operating mode
    2.
    发明授权
    Methods for controlling a fuel metering in the multiple injection operating mode 有权
    用于在多次喷射操作模式下控制燃料计量的方法

    公开(公告)号:US06920862B2

    公开(公告)日:2005-07-26

    申请号:US10473088

    申请日:2002-02-13

    摘要: The invention relates to two methods for controlling a fuel metering of a direct-injection internal combustion engine (10) in a multiple injection operating mode according to which at least two fuel injections into a cylinder (12) are carried out during a compression cycle of the cylinder (12) of the internal combustion engine (10) by means of at least one injection valve (22). The invention provides that a pressure (rail pressure, PR), under which the fuel is stored in front of the injection valve (22), is present in such a manner and/or injected fuel portions of the individual injections of a combustion cycle and/or a total fuel quantity, which is injected during a multiple injection, are varied in such a manner as to prevent a forthcoming valve opening time (Δt) of the injection valve (22) from falling below a preset valve opening time (ΔtK) during at least one injection of a combustion cycle. The inventive measures ensure, with simple means, a precise fuel metering in the multiple injection operating mode and thus enable an application of the multiple injection operating mode over wide operating ranges, particularly also in the low load operating mode and idle operating mode.

    摘要翻译: 本发明涉及用于以多次喷射操作模式控制直喷式内燃机(10)的燃料计量的两种方法,根据该方法,在压缩循环期间执行至少两个喷射到气缸(12)中的燃料喷射 内燃机(10)的气缸(12)通过至少一个喷射阀(22)。 本发明提供了一种在燃料储存在喷射阀(22)的前方的压力(轨道压力),以这样的方式和/或喷射的燃料部分 在多次注射期间喷射的燃烧循环和/或总燃料量的单独喷射以防止喷射阀(22)的即将到来的阀打开时间(Deltat)下降的方式变化 在燃烧循环的至少一次喷射期间的预设阀打开时间(Deltat K)。 本发明的措施通过简单的手段确保在多次喷射操作模式下的精确燃料计量,并且因此能够在宽的工作范围内,特别是在低负载运行模式和空转操作模式下,可应用多次喷射操作模式。

    Method for heating up a catalytic converter
    3.
    发明授权
    Method for heating up a catalytic converter 有权
    加热催化转化器的方法

    公开(公告)号:US08402747B2

    公开(公告)日:2013-03-26

    申请号:US10546674

    申请日:2004-02-23

    IPC分类号: F01N3/00 F01N3/10

    摘要: At least one chemical heating measure, which causes an increase in the catalytic converter temperature essentially by introducing into the exhaust gas channel additional chemical energy in excess of energy provided at an initial engine operating point, is combined with at least one thermal heating measure, which causes an increase in the catalytic converter temperature essentially by introducing into the exhaust gas channel additional thermal energy in excess of energy provided at an initial engine operating point, so that a major fraction of the chemical energy is introduced temporally before a major fraction of the thermal energy is introduced.

    摘要翻译: 至少一种化学加热措施,其主要通过引入排气通道而导致催化转化器温度增加,超过在初始发动机工作点提供的能量的额外化学能量与至少一个热加热措施组合, 导致催化转化器温度的增加主要是通过将超过在初始发动机工作点提供的能量的额外的热能引入废气通道中,使得大部分化学能在时间上被引入大部分热 引入能量。

    Method for heating up a catalytic converter
    4.
    发明申请
    Method for heating up a catalytic converter 有权
    加热催化转化器的方法

    公开(公告)号:US20060162321A1

    公开(公告)日:2006-07-27

    申请号:US10546674

    申请日:2004-02-23

    IPC分类号: F01N3/00 F01N3/10

    摘要: The invention relates to a method for heating up at least one catalytic converter (34) that is disposed in an exhaust gas duct (28) of an internal combustion engine, especially an NOx storage catalytic converter (34) which is mounted upstream of a precatalytic converter (30, 32). According to the invention, at least one chemical heating measure causing a temperature increase in the catalytic converter (34) that is to be heated substantially by means of chemical energy which is fed into the exhaust gas duct (28) in addition to the energy supplied at an original engine operation point, and at least one thermal heating measure causing an increase in the temperature of the catalytic converter especially by means of thermal energy that is supplied in addition to the energy supplied at an original engine operation point, are combined in such a way that a main portion of chemical energy is supplied before a main portion of thermal energy.

    摘要翻译: 本发明涉及一种用于加热至少一个催化转化器(34)的方法,所述催化转化器(34)设置在内燃机的排气管道(28)中,特别是NO x X存储催化转化器(34) ),其安装在预分解转换器(30,32)的上游。 根据本发明,至少一种化学加热措施导致催化转化器(34)的温度升高,该催化转化器基本上通过供应到排气管道(28)中的化学能被加热,除了所提供的能量 在原始发动机操作点处,以及至少一个导致催化转化器的温度升高的热加热措施,特别是通过除了在原始发动机操作点供应的能量之外提供的热能,这些热加热措施被组合在一起 化学能的主要部分在热能的主要部分之前供应的方式。

    Hybrid motor vehicle and method for controlling operation of a hybrid motor vehicle
    5.
    发明授权
    Hybrid motor vehicle and method for controlling operation of a hybrid motor vehicle 有权
    混合动力车辆及混合动力车辆的运转控制方法

    公开(公告)号:US08020651B2

    公开(公告)日:2011-09-20

    申请号:US11719350

    申请日:2005-10-19

    IPC分类号: B60K6/26

    摘要: A method controls an operation of a motor vehicle equipped with a hybrid drive unit having a combustion engine and at least one electric machine that can be selectively operated as a motor or as a generator. The electric machine, when in generator mode, charges an energy store and/or supplies power to a vehicle electrical system of the motor vehicle. In generator mode, the electric machine is operated in alternating intervals, while maintaining predefined boundary conditions. In a first interval, the electric machine is operated with a first high electrical power output that is higher than an actual power consumption of the vehicle electrical system of the motor vehicle. The electric machine is switched off in a second interval. This largely prevents the electric machine from approaching operating points under light load which have a low efficiency and achieves a fuel advantage in comparison to a continuous operating mode.

    摘要翻译: 一种方法控制配备有具有内燃机的混合动力驱动单元的机动车辆的操作和能够选择性地作为电动机或发电机操作的至少一个电机。 电动机在发电机模式下,向机动车辆的车辆电气系统充电能量存储和/或供电。 在发电机模式下,电机以交替的间隔运行,同时保持预定义的边界条件。 在第一间隔中,电机以高于机动车辆的车辆电气系统的实际功率消耗的第一高电力输出来操作。 电机在第二个时间间隔内关闭。 这大大地防止电机在轻负载下接近工作点,其效率低并且与连续操作模式相比获得了燃料优势。

    Method for operating a hybrid vehicle and hybrid vehicle
    6.
    发明授权
    Method for operating a hybrid vehicle and hybrid vehicle 有权
    混合动力汽车和混合动力汽车的运行方法

    公开(公告)号:US07580779B2

    公开(公告)日:2009-08-25

    申请号:US11327129

    申请日:2006-01-06

    IPC分类号: B60K6/42 F02D17/00

    摘要: In a method for operating a hybrid vehicle with an electric motor coupled with a multi-cylinder internal combustion engine having at least one cylinder that can be switched off, with a first partial momentum, from an overall momentum provided to the vehicle, being provided by the internal combustion engine and a second partial momentum from the electric motor, and the second partial momentum is used specifically for dampening a cyclic irregularity of the internal combustion engine. Further, means are provided in a hybrid vehicle control, by which the second partial momentum can be used specifically to dampen the cyclic irregularity of the internal combustion engine when one or, if necessary, several cylinders are switched off.

    摘要翻译: 在具有与具有至少一个汽缸的多气缸内燃机耦合的电动机的混合动力车辆的操作方法中,具有第一部分动量,从提供给车辆的整体动量,第一部分动量由 内燃机和来自电动机的第二部分动量,并且第二部分动量被专门用于抑制内燃机的循环不规则性。 此外,在混合动力车辆控制中提供装置,通过该混合动力车辆控制,可以特别地使用第二部分动量来抑制当一个或如果需要几个汽缸关闭时内燃机的循环不规则性。

    Method And Device For Stopping And Starting The Engine Of Hybrid Vehicles
    7.
    发明申请
    Method And Device For Stopping And Starting The Engine Of Hybrid Vehicles 有权
    混合动力汽车发动机停止起动方法与装置

    公开(公告)号:US20070277773A1

    公开(公告)日:2007-12-06

    申请号:US11596553

    申请日:2005-05-04

    IPC分类号: F02D17/04

    摘要: In a method and a device for engine stop/engine start of hybrid vehicles, which includes an internal combustion engine and an electric machine which is coupled to the internal combustion engine and is selectively able to be operated regeneratively or motively, the engine speed can be detected and compared to a limit speed to initiate the stopping of the engine in a hybrid vehicle using an automatic start/stop mechanism, and if the engine speed drops to the threshold speed, the engine is stopped, the electric machine being switched over into the motive or the regenerative operation when the limit speed is reached; the electric machine assuming the limit speed, whereas the fuel supply of the internal combustion engine is shut down or remains shut down and the electric machine initiates the stopping of the internal combustion engine.

    摘要翻译: 在混合动力车辆的发动机停止/发动机启动的方法和装置中,其包括内燃机和耦合到内燃机并且可选择性地能够再生或动力地操作的电机,发动机转速可以是 检测并与使用自动启动/停止机构启动混合动力车辆中的发动机停止的极限速度进行比较,并且如果发动机速度下降到阈值速度,则发动机停止,电机切换到 达到极限转速时的动力或再生作用; 假定限制速度的电机,而内燃机的燃料供应被关闭或保持关闭,并且电机启动内燃机的停止。

    Device for supplying exhaust gases from an internal combustion engine to a catalytic converter
    10.
    发明授权
    Device for supplying exhaust gases from an internal combustion engine to a catalytic converter 有权
    用于将废气从内燃机供给到催化转化器的装置

    公开(公告)号:US06647711B1

    公开(公告)日:2003-11-18

    申请号:US10149531

    申请日:2002-07-09

    IPC分类号: F01N300

    摘要: A device for supplying exhaust gases from an internal combustion engine to a catalytic converter, having multiple exhaust gas supply lines including at least one exhaust gas supply line that serves as a heat-conveying line to promote a transfer of exhaust gas heat to the catalytic converter and at least one other exhaust gas supply line that serve as a heat exchanger to promote an extraction of heat from the exhaust gas upstream of the catalytic converter. A switchable control mechanism controls a flow cross-section of at least one of the exhaust gas supply lines. The exhaust gas supply lines are arranged as a bundle of pipes including individual pipes which are spaced apart and extend to the catalytic converter so that the exhaust gas supply line that is the heat-conveying line is arranged as an inner pipe in the bundle and is surrounded around its circumference by the exhaust gas supply lines that are heat exchangers, which are spaced some distance from one another in a circumferential direction of the heat conveying line. The exhaust gas supply line that is the heat-conveying line has a cross-section that is smaller than a cross-section of the exhaust gas supply line that is the heat exchanger.

    摘要翻译: 一种用于从内燃机向催化转化器供给废气的装置,具有多个排气供给管线,该排气气体供给管线包括至少一个废气供应管线,其用作热输送管线,以促进废气热传递至催化转化器 以及用作热交换器以促进从催化转化器上游的排气提取热量的至少一个其它排气供应管线。 可切换控制机构控制废气供给管线中的至少一个的流动横截面。 排气供给管线被布置为包括分开并延伸到催化转化器的各个管道的管束,使得作为热输送管线的排气供应管线被布置为束中的内管,并且是 通过作为热交换器的废气供给管围绕其圆周包围,该排气供给管在热传输线的周向彼此间隔开一定距离。 作为热输送线的排气供给管的截面积小于作为热交换器的废气供给管的截面。