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    • 1. 发明申请
    • DEVICE FOR FINDING THE CONCENTRATION OF A COMPONENT IN A GAS MIXTURE
    • 一种用于确定一个组分的浓度气体混合物
    • WO1996035120A1
    • 1996-11-07
    • PCT/DE1996000611
    • 1996-03-29
    • ROBERT BOSCH GMBHJUNGINGER, Erich
    • ROBERT BOSCH GMBH
    • G01N27/419
    • G01N27/419
    • A device for finding the concentration of a component in a gas mixture has a first partial volume in which the concentration of the component coupled to the concentration in the gas mixture via a diffusion resistor is kept constant in spite of the effect of this coupling. Said effect of the coupling is compensated by a controllable flow of ions of the component through a solid electrolyte acting as a pump between the partial volume and the gas mixture. The strength of the pump flow is a measure of the concentration in the gas mixture sought. Said flow is controlled as a function of the deviation of the output voltage of a Nernst cell between the first partial volume and a reference gas volume from a reference value. The device has means deliberately affecting said reference value depending on the voltage measurable via the solid electrolyte of the pumping device.
    • 用于确定在气体混合物中的成分的浓度的装置,具有一第一部分体积,其中克服作用在扩散电阻耦合到在所述气体混合物中的浓度的力的影响的成分的浓度保持恒定。 所述耦合的影响被用于通过该部件的离子通过泵送装置服务于所述第一部分体积和气体混合物之间的作为固体电解质的可控流量补偿。 泵浦电流的强度是在气体混合物中的所需浓度的量度。所述电流被控制为所述第一部分体积和从期望的值气体的基准容积之间的能斯特电池的输出电压的偏差的函数。 该装置的特征在于装置有选择地影响所述目标值作为可测量的整个泵装置电压的固体电解质的功能。
    • 3. 发明申请
    • PROCESS FOR CORRECTING MEASUREMENT ERRORS OF A HOT-FILM DEVICE FOR MEASURING AIR MASSES
    • 校正空气质量的热膜装置的测量误差的方法
    • WO1991002225A1
    • 1991-02-21
    • PCT/DE1990000590
    • 1990-08-01
    • ROBERT BOSCH GMBHSCHNAIBEL, EberhardJUNGINGER, ErichHIRSCHMANN, Klaus
    • ROBERT BOSCH GMBH
    • G01F01/72
    • F02D41/187G01F1/696G01F1/72
    • The invention relates to a process for correcting measurement errors of a hot-film device for measuring air masses, in particular for determining the mass of combustion air in an internal combustion engine. To ensure error-free measurement, a first value (23) of the air mass is determined by hot-film device for measuring air masses and a second value (24) of the air mass is determined by a second, independent process ( alpha /n process). The two values (23, 24) are used alternatively as valid quantities, in function of the operating ranges which govern the accuracy of measurement, and in at least one backflow-free operating range a correction signal (KH) is derived by comparing the first value (23) and the second value (24) and used to correct the second value (24) in operating ranges in which backflow occurs.
    • 本发明涉及用于校正用于测量空气质量的热膜装置的测量误差的方法,特别是用于确定内燃机中的燃烧空气的质量。 为了确保无差错的测量,空气质量的第一值(23)由用于测量空气质量的热膜装置确定,空气质量的第二值(24)由第二独立过程(α/ n过程)。 根据控制测量精度的操作范围,两个值(23,24)可替换地用作有效量,并且在至少一个无回流工作范围内,通过比较第一个(23,24)的校正信号(KH) 值(23)和第二值(24),并用于在发生回流的操作范围内校正第二值(24)。