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    • 81. 发明授权
    • Device for the recognition of a defective signal
    • 用于识别有缺陷信号的装置
    • US06329807B1
    • 2001-12-11
    • US09242275
    • 1999-02-12
    • Ernst WildManfred Pfitz
    • Ernst WildManfred Pfitz
    • G01R2365
    • H03K5/26F02D41/222G05B9/03H04L1/24Y02T10/40
    • The device for detecting an erroneous signal characteristic of a load on an internal combustion engine that includes first and second differentiators (10,16) with delay devices that generate corresponding output signals (S11, S22) from respective load signals (S1,S2); first and second magnitude-forming devices (14,17) connected with the first and second differentiators respectively to generate respective magnitude signals from the corresponding output signals (S11,S22) first and second low-pass filters (15, 18) connected with the first and second magnitude-forming devices respectively to generate first and second DC voltage signals (MW1,MW2); a subtracting device (19) for subtracting the first and second DC voltage signals (MW1,MW2) from each other to generate a difference signal (D); and comparison devices (20,23) for generating a first error signal or a second error signal when the difference signal (D) is greater than a predetermined threshold (SW1) or less than a negative of the predetermined threshold (−SW1) respectively, so that the first error signal indicates the main load signal is faulty and the second error signal indicates the auxiliary load signal is faulty.
    • 用于检测包含第一和第二微分器(10,16)的内燃机上的负载的错误信号特性的装置,具有从各个负载信号(S1,S2)产生相应的输出信号(S11,S22)的延迟装置; 分别与第一和第二微分器连接的第一和第二幅度形成装置(14,17),以从相应的输出信号(S11,S22)产生相应的幅度信号,第一和第二幅度形成装置 第一和第二幅度形成装置,分别产生第一和第二直流电压信号(MW1,MW2); 减法装置(19),用于从第一和第二直流电压信号(MW1,MW2)中减去产生差信号(D); 以及用于当差分信号(D)分别大于预定阈值(SW1)或小于预定阈值(-SW1)的负值时产生第一误差信号或第二误差信号的比较装置(20,23) 使得第一误差信号指示主负载信号有故障,第二误差信号指示辅助负载信号有故障。
    • 82. 发明授权
    • Method and apparatus for operation of an internal combustion engine, especially of a motor vehicle, with a lean fuel/air mixture
    • 用于操作具有贫燃料/空气混合物的内燃机,特别是机动车辆的内燃机的方法和装置
    • US06273077B1
    • 2001-08-14
    • US09510454
    • 2000-02-22
    • Ernst Wild
    • Ernst Wild
    • F02D4104
    • F02D41/1473F02D41/0062F02D41/1401F02D41/1454F02D2041/141F02D2041/1433F02D2200/0402
    • The method of operating an internal combustion engine, especially of a motor vehicle, having a combustion chamber (4), which is operable in a plurality of combustion cycles, includes feeding an air mass (42) and a fuel mass (3) into the combustion chamber (4) in each combustion cycle; adjusting a mixture composition lambda (&lgr;) of the air mass to the fuel mass for one of the combustion cycles so that &lgr;>1; determining a residual air portion present in the combustion chamber (4) due to combustion occurring in the combustion chamber in the combustion cycle in which the mixture composition lambda (&lgr;) is greater than one; and reducing the air mass to be supplied to the combustion chamber (4) in another combustion cycle following the one combustion cycle in which &lgr;>1 by about the residual air portion found in the one combustion cycle. The portion of the residual air in the combustion chamber is exactly accounted for in determining fuel/air stoichiometry during combustion in this method so that engine operation and exhaust gas composition are improved. The invention also includes an control unit and/or control element of a control unit that is operable to perform this method.
    • 操作具有燃烧室(4)的可在多个燃烧循环中操作的内燃机(特别是机动车辆)的方法包括将空气块(42)和燃料块(3)进入 燃烧室(4); 将空气质量的混合物组成λ(lambd)调节到燃料循环中的一个燃烧循环,使得lambd> 1; 确定在混合物组成λ(lambd)大于1的燃烧循环中由于在燃烧室中发生的燃烧而存在于燃烧室(4)中的残余空气部分; 并且在一个燃烧循环之后的另一个燃烧循环中减少要供应到燃烧室(4)的空气质量,其中在一个燃烧循环中,在一个燃烧循环中,在一个燃烧循环中,在一个燃烧循环中,在一个燃烧循环中,lambd> 在该方法中,在确定燃烧期间的燃料/空气化学计量时,燃烧室中的剩余空气的部分被精确地考虑在内,从而提高了发动机运转和废气组成。 本发明还包括可操作以执行该方法的控制单元的控制单元和/或控制单元。
    • 88. 发明授权
    • Method and arrangement for venting a tank
    • 排放罐的方法和装置
    • US5372117A
    • 1994-12-13
    • US119144
    • 1993-09-22
    • Helmut DenzErnst WildAndreas Blumenstock
    • Helmut DenzErnst WildAndreas Blumenstock
    • F02D41/00F02M25/08F02M37/00F02D41/14
    • F02M25/08F02D41/004F02M25/0809
    • A method for alternately carrying out phases with and without tank venting during operation of an internal combustion engine equipped with a tank-venting assembly is characterized in that the ratio of the time spans with and without tank venting is selected to be dependent upon operating data of the engine or of the tank-venting assembly. Preferably, a variable is measured which is a measure for the fuel quantity to be regenerated during tank venting and the above-mentioned ratio is increased in favor of the tank-venting time span with respect to the base ratio when the value of the measured variable exceeds an upper limit (Dp.sub.-- SMW; FTEA.sub.-- SWU). This method makes possible that an adsorption filter and a tank-venting valve in the corresponding arrangement can be dimensioned for lesser throughput quantities than previously without the danger being present that fuel vapors escape to the ambient. The tank-venting time span is extended with respect to the base-adaptation time span when a large amount of fuel vapor occurs whereby the smaller adsorption filter still regenerates satisfactorily notwithstanding the reduced cross section of the tank-venting valve.
    • PCT No.PCT / DE92 / 00127 Sec。 371日期:1993年9月22日 102(e)日期1993年9月22日PCT 1991年3月21日PCT公布。 公开号WO92 / 16734 日期:1992年10月1日。一种用于在配备有排气组件的内燃机的操作期间交替执行具有和不具有罐排气的相的方法,其特征在于,选择具有和不具有罐排气的时间跨度的比率 取决于发动机或排气组件的操作数据。 优选地,测量变量,其是在罐排放期间要再生的燃料量的量度,并且当测量的变量的值为相对于基准比时,上述比率增加,有利于通气时间跨度 超过上限(Dp-SMW; FTEA-SWU)。 这种方法使得相应布置中的吸附过滤器和通气阀的尺寸可以确定为比以前更少的通过量,而不存在燃料蒸气逸出到环境中的危险。 当发生大量燃料蒸汽时,相对于基础适应时间跨度延长了排气时间跨度,由此尽管减压阀的横截面减小,但较小的吸附过滤器仍然令人满意地再生。
    • 89. 发明授权
    • Fuel injection system for an internal combustion engine
    • 内燃机燃油喷射系统
    • US5255655A
    • 1993-10-26
    • US640369
    • 1991-01-29
    • Helmut DenzAndreas RothErnst Wild
    • Helmut DenzAndreas RothErnst Wild
    • F02B1/04F02D41/04F02D41/10F02D41/12F02D41/22
    • F02D41/105F02D41/045F02D41/107F02D41/12F02B1/04
    • In a fuel injection system for an internal combustion engine, the system calculates the pulse width of the angle-synchronous fuel injection pulses from a main load sensor, such as an inlet manifold pressure sensor (22) or a hot film or hot wire air mass meter (24). Under rapidly-changing load conditions of the engine, the signal from the main load sensor is not sufficiently accurate to maintain a closely stoichiometric mixture. The present invention provides a throttle valve angle sensor for monitoring the degree of opening of an engine throttle (18), and changes the calculation of the basic angle-synchronous fuel injection signal when the measured rate of change of the throttle valve angle reaches a predetermined valve. The change of calculation may comprise altering filtering characteristics of a filter function normally applied to the basic angle-synchronous fuel injection signal, altering the sampling of the signal from the engine load sensor, or deriving the basic angle-synchronous fuel injection signal from the throttle valve angle signal instead of from the main load sensor signal. Furthermore, the load change compensation may be changed to a calculation from the throttle valve load signal instead of the main load signal. The system may also be arranged to inject one or more intermediate asynchronous fuel injection pulses in between the normal angle-synchronous injections, to enable the fuel/air mixture to follow a rapid change in engine load more closely.
    • PCT No.PCT / EP89 / 00673 Sec。 371 1991年1月29日第 102(e)日期1991年1月29日PCT Filed 1989年6月15日PCT公布。 第WO90 / 15921号公报 日期为1990年12月27日。在内燃机的燃料喷射系统中,系统计算来自主负荷传感器(例如入口歧管压力传感器(22))或角度同步燃料喷射脉冲 热膜或热丝空气质量计(24)。 在发动机的快速变化的负载条件下,来自主负载传感器的信号不足以保持紧密化学计量的混合物。 本发明提供了一种用于监测发动机节气门(18)的开度的节气门角度传感器,并且当所测量的节气门角度变化率达到预定值时,改变基本角同步燃料喷射信号的计算 阀。 计算的改变可以包括改变通常应用于基本角度 - 同步燃料喷射信号的滤波器功能的滤波特性,改变来自发动机负载传感器的信号的采样,或从节气门导出基本的角度同步燃料喷射信号 阀角信号代替主负载传感器信号。 此外,负载变化补偿可以改变为来自节气门负载信号而不是主负载信号的计算。 系统还可以被布置成在正常角度同步喷射之间注入一个或多个中间异步燃料喷射脉冲,以使得燃料/空气混合物更紧密地跟随发动机负载的快速变化。
    • 90. 发明授权
    • Tank-venting apparatus as well as a method and an arrangement for
checking the same
    • 作为检查方法和装置的油罐装置
    • US5205263A
    • 1993-04-27
    • US865923
    • 1992-04-09
    • Andreas BlumenstockHelmut DenzWerner MezgerErnst Wild
    • Andreas BlumenstockHelmut DenzWerner MezgerErnst Wild
    • G01M3/26B60K15/035F02M25/08G01M15/04
    • F02M25/0809B60K15/03504
    • The invention is directed to a method of checking a tank-venting apparatus for a motor vehicle equipped with a fuel tank and an internal combustion engine having an intake pipe. The apparatus includes an adsorption filter having a venting end and an intake end, a supply line connecting the intake end to the tank and a connecting line interconnecting the intake pipe of the engine and the intake end of the adsorption filter. A tank-venting valve is mounted in the connecting line between the intake pipe and the intake end of the adsorption filter and a drive unit for actuating the tank-venting valve. The method includes the steps of: changing the open state of the tank-venting valve when a pregiven operating state range of the engine is present; detecting the difference pressure between the pressure at the intake end of the adsorption filter and the ambient pressure; checking if the difference pressure or the end value of the difference pressure change lies in a predetermined range after the open state of the tank-venting valve is changed; and, issuing a fault announcement if neither the difference pressure, the time constant of the difference pressure change nor the end value of the difference pressure change lies in said predetermined range. The invention utilizes the realization that the difference pressure is based on the gas flow into and out of the adsorption filter. The difference pressure drops when the outflow is clogged or when there is a leak. On the other hand, the difference pressure increases when the inflow is clogged. In this way, the operability of the tank-venting apparatus can be checked in a simple manner.
    • 本发明涉及一种检查装备有燃料箱的机动车辆的排气装置和具有进气管的内燃机的方法。 该装置包括具有通气端和进气端的吸附过滤器,将进气端连接到油箱的供给管线和将发动机的进气管与吸附过滤器的进气端相连的连接管线。 排气阀安装在进气管和吸附过滤器的进气端之间的连接管路中,以及用于致动排气阀的驱动单元。 该方法包括以下步骤:当存在发动机的预定运行状态范围时改变通气阀的打开状态; 检测吸附过滤器吸入端的压力与环境压力之间的差压; 检查在压力变化的打开状态发生变化之后,差压变化的差压或者结束值是否在规定的范围内, 以及如果差压,差压变化的时间常数和差压变化的结束值都不在所述预定范围内,则发出故障通知。 本发明利用差压是基于进入和离开吸附过滤器的气体流量的认识。 当流出物堵塞或泄漏时,差压力下降。 另一方面,当流入物堵塞时,差压增加。 以这种方式,可以以简单的方式检查罐排放装置的可操作性。