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    • 1. 发明授权
    • Method and device for triggering a fuel injector
    • 用于触发燃油喷射器的方法和装置
    • US06785112B2
    • 2004-08-31
    • US09979353
    • 2002-08-08
    • Rolf ReischlAndreas EichendorfUlf PischkeJuergen EckhardtKlaus Mueller
    • Rolf ReischlAndreas EichendorfUlf PischkeJuergen EckhardtKlaus Mueller
    • H01H4700
    • F02D41/20F02D2041/2003F02D2041/2006F02D2041/2013
    • A method and device for triggering a solenoid valve for injecting fuel into an internal combustion engine is described. The triggering phase of the solenoid valve is subdivided into a pull-up phase and a holding phase. During the pull-up phase, a valve needle of the solenoid valve is caused to open by a first current intensity flowing through a magnetic coil of the solenoid valve. During the holding phase, the valve needle is held in the open state by a second, lower current intensity flowing through the magnetic coil. At least once at the beginning of the pull-up phase, a booster phase is activated during which a pulse-shaped booster current from a booster capacitor charged to a high voltage flows through the magnetic coil. During the triggering phase of the solenoid valve, a plurality of booster pulses are activated in succession, whose time position within the triggering phase is freely selectable.
    • 描述了用于触发用于将燃料喷射到内燃机中的电磁阀的方法和装置。 电磁阀的触发相分为上拉阶段和保持阶段。 在上拉阶段期间,电磁阀的阀针被流过电磁阀的电磁线圈的第一电流强度打开。 在保持阶段期间,阀针通过流过电磁线圈的第二低电流强度保持在打开状态。 在上拉阶段开始时至少一次,激活升压阶段,在此期间,来自被充电到高电压的升压电容器的脉冲形增强器电流流过电磁线圈。 在电磁阀的触发阶段期间,多个升压脉冲被连续地激活,其触发阶段内的时间位置是可自由选择的。
    • 2. 发明授权
    • Method of controlling the air-fuel ratio in an internal combustion engine
    • 控制内燃机的空燃比的方法
    • US4492205A
    • 1985-01-08
    • US434181
    • 1982-10-14
    • Werner JundtRolf Reischl
    • Werner JundtRolf Reischl
    • F02D41/14F02D45/00F02M51/00
    • F02D41/1479F02D41/148
    • To prevent stumbling operation of an internal combustion (IC) engine (E) during warm-up due to switching back-and-forth between control of the air-fuel composition of the mixture being applied to the engine based on a preset, rich mixture and controlled by a lambda sensor, the lambda sensor internal resistance is sensed and, when the internal resistance of the lambda sensor, when exposed to a rich mixture, is substantially less than when exposed to a fuel-lean mixture, an indication is thereby provided that the sensor has reached proper operating temperatures - see FIG. 3 - is capable of providing output voltages within the evaluation range of two threshold circuits (9, 10) which receive reference values from a voltage divider (6, 7, 8) and of resuming control based on the output voltages of the sensor. The minimum operating temperatures of the sensor are asymmetrical, with respect to lean or rich air-fuel mixtures being applied to the engine, to permit either uninterrupted control of the engine in accordance with a preset air-fuel mixture during warm-up or only by the sensor, after it has reached its operating temperature, thereby preventing back-and-forth switching between control based on the preset conditions and on output signals from the sensor.
    • 为了防止在预热期间内燃(IC)发动机(E)因在施加到发动机上的混合气的空燃组合物的控制之间来回切换而基于预设的富混合物 并且由λ传感器控制,感测到λ传感器内部电阻,并且当暴露于富混合物时,当λ传感器的内阻基本上小于暴露于贫燃料混合物时的内阻,从而提供指示 传感器已达到适当的工作温度 - 见图。 3 - 能够在接收来自分压器(6,7,8)的参考值的两个阈值电路(9,10)的评估范围内提供输出电压,并且基于传感器的输出电压恢复控制。 传感器的最低工作温度相对于向发动机施加的稀薄或浓缩的空气 - 燃料混合物是不对称的,以允许在预热期间根据预设的空气 - 燃料混合物或仅通过 传感器在其达到其工作温度之后,从而防止基于预设条件的控制和来自传感器的输出信号之间的前后切换。
    • 3. 发明授权
    • Method for monitoring a broadband lambda probe
    • 监测宽带探测器的方法
    • US09500152B2
    • 2016-11-22
    • US14366948
    • 2012-11-15
    • Bernhard LedermannClaudius BevotRolf Reischl
    • Bernhard LedermannClaudius BevotRolf Reischl
    • F02D41/14G01N27/419G01N33/00F02D41/22
    • F02D41/1495F02D41/1456F02D41/222G01N27/419G01N33/0006G01N33/0036G01N33/007Y02T10/40
    • A method for determining a polarization of a pump cell and/or a Nernst cell of a lambda probe for the diagnosis of the broadband lambda probe. A voltage or current pulse is applied to the pump/Nernst cell in a first method task, and, in a second method task, a voltage at the pump cell and/or the Nernst cell, or a variable that is related to the polarization or its time characteristic is determined and used as a measure of the polarization, and the function of the broadband lambda probe is monitored via the ascertained polarization. The determination of the polarization may be performed as a voltage measurement performed once or multiple times, or by determining the effect of the polarization in an associated controller, such as a pump current controller of an engine control unit. The variable associated with the polarization may be the reaction of the pump current control.
    • 用于确定用于诊断宽带λ探针的λ探针的泵浦电池和/或能斯特细胞的极化的方法。 在第一种方法任务中,在泵/能斯特细胞上施加电压或电流脉冲,并且在第二种方法任务中,在泵浦电池和/或能斯特电池处的电压或与偏振相关的变量或 其时间特性被确定并用作极化的度量,并且通过确定的极化来监测宽带λ探针的功能。 极化的确定可以作为执行一次或多次的电压测量来执行,或者通过确定诸如发动机控制单元的泵电流控制器的关联控制器中的极化的影响来执行。 与极化相关的变量可能是泵电流控制的反应。
    • 5. 发明授权
    • Method of metering fuel using a fuel injector
    • 使用燃料喷射器计量燃料的方法
    • US06679222B1
    • 2004-01-20
    • US10049008
    • 2002-06-10
    • Rolf ReischlWolfgang RuehleHubert StierMatthias BoeeNorbert KeimGuenther Hohl
    • Rolf ReischlWolfgang RuehleHubert StierMatthias BoeeNorbert KeimGuenther Hohl
    • F02M5100
    • F02M51/0603F02D41/2096F02D41/2467
    • A method of metering fuel with a fuel injector, in particular a fuel injector for fuel injection systems in internal combustion engines is described, having a piezoelectric or magnetostrictive actuator and a valve closing body which is operable by the actuator with a valve lift, cooperating with a valve seat face provided on a valve seat body to form a sealing seat. The valve lift may be adjusted variably as a function of a variable control signal triggering an actuator to produce a variable fuel flow at the sealing seat. To produce afitted curve, the fuel flow of the fuel jet sprayed by the fuel injector is measured as a function of the control signal to produce a fitted curve, and a predetermined fuel flow is set with the control signal by using the fitted curve.
    • 描述了一种使用燃料喷射器计量燃料的方法,特别是用于内燃机中的燃料喷射系统的燃料喷射器,其具有压电或磁致伸缩致动器和阀门关闭体,所述阀门致动器和致动器可由气门升程器 设置在阀座体上以形成密封座的阀座面。 可以根据可变控制信号可变地调节气门升程,该可变控制信号触发致动器以在密封座处产生可变燃料流。 为了产生出曲线,由燃料喷射器喷射的燃料喷射器的燃料流量作为控制信号的函数被测量,以产生拟合曲线,并且通过使用拟合曲线通过控制信号设定预定燃料流量。
    • 6. 发明授权
    • Nitrogen oxide sensor with attenuated oxygen dependence of the NOx signal
    • 具有NOx信号衰减氧依赖性的氮氧化物传感器
    • US07455761B2
    • 2008-11-25
    • US10489798
    • 2002-08-02
    • Rolf Reischl
    • Rolf Reischl
    • G01N27/407
    • G01N27/419
    • In a method and with a circuit for operating a nitrogen oxide sensor for determining the nitrogen oxide (NOx) concentration in a gas mixture, in particular in post-treatment of an automotive exhaust, an electric pumping voltage (U_APE,IPE) which induces a pumping current (I_pump) being applied between an internal pump electrode (IPE) and an external pump electrode (APE) of a pumping cell, by which a constant oxygen partial pressure is established in a first test gas space by pumping oxygen in or out, the pumping voltage (U_APE,IPE) being regulated so that a constant voltage value is established at electrodes of a concentration cell, a NOx-sensitive third electrode situated in a second test gas space being operated as the second pumping cell in which a limit pumping current is established, indicating the NOx concentration, in order to minimize the influence of oxygen on the nitrogen oxide signal measured, the pumping current (I_pump) is switched off or reduced in a controlled manner within a measurement time window (T_Mess) and the NOx concentration is determined within the measurement time window (T_Mess).
    • 在一种用于操作用于确定气体混合物中的氮氧化物(NOx)浓度的氮氧化物传感器的方法和电路中,特别是在汽车尾气的后处理中,电泵浦电压(U_APE,IPE) 泵浦电流(I_pump)被施加在泵送电池的内部泵电极(IPE)和外部泵浦电极(APE)之间,通过泵浦电流在第一测试气体空间中建立恒定的氧分压, 泵浦电压(U_APE,IPE)被调节为使得在浓度电池的电极处建立恒定的电压值,位于第二测试气体空间中的NOx敏感的第三电极被操作为第二泵浦电池,其中极限泵浦 建立电流,表明NOx的浓度,为了最小化氧气对测量的氮氧化物信号的影响,泵浦电流(I_pump)以受控的方式关闭或减少 测量时间窗口(T_Mess),并且在测量时间窗口(T_Mess)内确定NOx浓度。
    • 7. 发明申请
    • Nitrogen oxide sensor with attenuated oxygen dependence of the nox signal
    • 氮氧化物传感器具有衰减的氧依赖性的nox信号
    • US20050029127A1
    • 2005-02-10
    • US10489798
    • 2002-08-02
    • Rolf Reischl
    • Rolf Reischl
    • G01N27/416G01N27/419G01N27/26
    • G01N27/419
    • In a method and with a circuit for operating a nitrogen oxide sensor for determining the nitrogen oxide (NOx) concentration in a gas mixture, in particular in post-treatment of an automotive exhaust, an electric pumping voltage (U_APE,IPE) which induces a pumping current (I_pump) being applied between an internal pump electrode (IPE) and an external pump electrode (APE) of a pumping cell, by which a constant oxygen partial pressure is established in a first test gas space by pumping oxygen in or out, the pumping voltage (U_APE,IPE) being regulated so that a constant voltage value is established at electrodes of a concentration cell, a NOx-sensitive third electrode situated in a second test gas space being operated as the second pumping cell in which a limit pumping current is established, indicating the NOx concentration, in order to minimize the influence of oxygen on the nitrogen oxide signal measured, the pumping current (I_pump) is switched off or reduced in a controlled manner within a measurement time window (T_Mess) and the NOx concentration is determined within the measurement time window (T_Mess).
    • 在一种用于操作用于确定气体混合物中的氮氧化物(NOx)浓度的氮氧化物传感器的方法和电路中,特别是在汽车尾气的后处理中,电泵浦电压(U_APE,IPE) 泵浦电流(I_pump)被施加在泵送电池的内部泵电极(IPE)和外部泵浦电极(APE)之间,通过泵浦电流在第一测试气体空间中建立恒定的氧分压, 泵浦电压(U_APE,IPE)被调节为使得在浓度电池的电极处建立恒定的电压值,位于第二测试气体空间中的NOx敏感的第三电极被操作为第二泵浦电池,其中极限泵浦 建立电流,表明NOx的浓度,为了最小化氧气对测量的氮氧化物信号的影响,泵浦电流(I_pump)以受控的方式关闭或减少 测量时间窗口(T_Mess),并且在测量时间窗口(T_Mess)内确定NOx浓度。