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    • 2. 发明申请
    • A PROCESS AND DEVICE FOR LAMBDA CONTROL
    • 一种用于林蛙控制的方法和装置
    • WO1990005240A1
    • 1990-05-17
    • PCT/DE1989000164
    • 1989-03-17
    • ROBERT BOSCH GMBHSCHNAIBEL, EberhardRAFF, LotharPLAPP, GüntherPETER, CorneliusWESTERDORF, Michael
    • ROBERT BOSCH GMBH
    • F02D41/14
    • F02D41/1441F02D41/1456
    • A device for lambda control operates on an internal combustion engine (11) with a catalyst (12) and lambda probes, one (13.v) arranged in front and the other (13.h) behind it. Using integration means (15), the device integrates the difference between the actual value of lambda measured by the rearward probe and the nominal one on which adjustment is to be made. The integration figure is used as a regulating rating for a means (16) of lambda control. This device and the relevant process make it possible to regulate to the actually desired lambda figure even when the forward lambda probe is making false measurements, e.g. owing to hydrocarbons in the exhaust gases in front of the catalyst or, on constant control, the faulty linearisation of the probe characteristic.
    • 用于λ控制的装置在具有催化剂(12)和λ探针的内燃机(11)上操作,一个(13.v)布置在其后面(13.h)。 使用积分装置(15),该装置将由向后探头测量的λ的实际值与要进行调整的标称值之间的差积分。 积分图用作λ控制装置(16)的调节等级。 该装置和相关过程使得可以调节到实际期望的λ图,即使当前向的λ探针进行假测量时,例如, 由于在催化剂前面的废气中的碳氢化合物,或者在恒定的控制下,探针特性的线性故障。
    • 4. 发明申请
    • CONTROL AND REGULATING SYSTEM FOR INTERNAL COMBUSTION ENGINES
    • 内燃机控制与调节系统
    • WO1989005397A1
    • 1989-06-15
    • PCT/DE1988000679
    • 1988-11-03
    • ROBERT BOSCH GMBHSCHNAIBEL, EberhardSCHNEIDER, Erich
    • ROBERT BOSCH GMBH
    • F02D41/14
    • F02D41/2496F02D41/1402
    • A control and regulating system for adjusting the air/fuel mixture of an internal combustion engine (12) comprises an oxygen probe ( lambda probe) (14) exposed to the exhaust hums of the engine (12) which emits an output signal which is an index for the air coefficient lambda . A basic memory (10) stores the fuel dosing times which are used for a preliminary control of the internal combustion engine (12) until a predetermined air coefficient lambda is obtained. A target value memory (18) stores target values of the air coefficient and a regulating device (20) corrects the fuel dosing times read in a basic memory (10) in function of the output signal measured by the lambda probe (14) and a corresponding target value read in a target value memory (18). The reciprocal of the air coefficient lambda is stored in a target value memory (18). Each fuel dosing time in a basic memory (10) is linked by multiplication to the corresponding reciprocal of the air coefficient lambda read in a target value memory (18). A conversion device (16) converts the output signal to a corresponding reciprocal of the air coefficient lambda by means of a relation characteristic of the probe and known at least approximately between the output signal of the lambda probe (14) and the air coefficent lambda . By taking into account the linear relation between the reciprocal of the air coefficent lambda and the quantity of fuel (fuel dosing time), rapid and precise regulation is achieved by means of a simple linear regulating device.
    • 用于调节内燃机(12)的空气/燃料混合物的控制和调节系统包括暴露于发动机(12)的排气嗡嗡声的氧探头(λ探针)(14),其发射输出信号 空气系数λ的指数。 基本存储器(10)存储用于内燃机(12)的初步控制的燃料喷射时间,直到获得预定的空气系数λ。 目标值存储器(18)存储空气系数和调节装置(20)的目标值,根据由λ探针(14)测量的输出信号和基本存储器(10)中读取的燃料计量次数,校正基本存储器 在目标值存储器(18)中读取的对应目标值。 空气系数λ的倒数存储在目标值存储器(18)中。 基本存储器(10)中的每个燃料计量时间通过乘法与在目标值存储器(18)中读取的空气系数λ的相应倒数相关​​联。 转换装置(16)通过探针的关系特性将输出信号转换成空气系数λ的相应倒数,并至少在λ探针(14)的输出信号与空气系数λ之间已知。 通过考虑空气系数λ的倒数与燃料量之间的线性关系(燃料计量时间),通过简单的线性调节装置实现快速和精确的调节。
    • 8. 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)。