公开(公告)号：US4140087A

公开(公告)日：1979-02-20

申请号：US742715

申请日：1976-11-17

申请人： Rolf Daumer ,  Bernd Peter ,  Jean-Michel Castella ,  Harald Kizler

发明人： Rolf Daumer ,  Bernd Peter ,  Jean-Michel Castella ,  Harald Kizler

IPC分类号： F02D41/34 ,  F02D41/18 ,  F02D41/24 ,  F02B3/02

CPC分类号： F02D41/28 ,  F02D41/182 ,  F02D41/2403

摘要： The air flow rate and the speed of an internal combustion engine are sensed and translated into pulse trains of variable frequency. During a time interval defined by the rpm related signal, a digital counter receives and counts the air flow rate frequency. Subsequently, the contents of this counter are counted out by a pulse train whose frequency is adjustable depending on other engine conditions such as start-up, warm-up, idling, full-load and the like. The apparatus also includes circuitry for generating a control pulse of minimun length.

摘要翻译： 内燃机的空气流量和速度被检测并转换为可变频率的脉冲串。 在由rpm相关信号定义的时间间隔内，数字计数器接收并计数空气流量频率。 随后，该计数器的内容由根据诸如启动，预热，空转，满载等的其它发动机状态可调节的脉冲序列计数。 该装置还包括用于产生最小长度的控制脉冲的电路。

公开(公告)号：US4024707A

公开(公告)日：1977-05-24

申请号：US575995

申请日：1975-05-09

申请人： Peter Jurgen Schmidt ,  Harald Kizler

发明人： Peter Jurgen Schmidt ,  Harald Kizler

IPC分类号： F01N3/22 ,  F02D35/00 ,  F02D41/14 ,  F01N3/10

CPC分类号： F01N3/222 ,  F01N3/22 ,  F01N3/227 ,  F02D35/0038 ,  F02D41/1454

摘要： An internal combustion engine which is provided with an exhaust gas treatment system, such as thermal or catalytic reactors, includes a primary regulating system for admitting fresh air to the exhaust system for the chemical processes taking place in the reactors. This fresh air regulation depends on the engine rpm and on the induction tube pressure. There is also provided a secondary air control system, including a three-way valve and an electronic controller and an oxygen probe, located in the exhaust manifold. The probe supplies the controller with a signal related to the oxygen concentration in the exhaust gas and the controller uses this signal to actuate the three-way valve which admits either induction tube pressure or, alternatively, exhaust system pressure, to a control chamber in the primary regulating system, thereby influencing the quantity of fresh air supplied to the exhaust manifold of the engine.

摘要翻译： 设置有诸如热或催化反应器的废气处理系统的内燃机包括用于将新鲜空气引入排气系统以用于在反应器中进行的化学过程的初级调节系统。 这种新鲜空气调节取决于发动机转速和感应管压力。 还提供了二次空气控制系统，其包括位于排气歧管中的三通阀和电子控制器以及氧气探头。 探头向控制器提供与排气中的氧气浓度相关的信号，并且控制器使用该信号来致动三通阀，其将感应管压力或可选的排气系统压力引导到控制室中 主调节系统，从而影响供应给发动机排气歧管的新鲜空气量。

公开(公告)号：US3935538A

公开(公告)日：1976-01-27

申请号：US499337

申请日：1974-08-21

申请人： Harald Kizler ,  Bernd Przybyla ,  Peter-Jurgen Schmidt

发明人： Harald Kizler ,  Bernd Przybyla ,  Peter-Jurgen Schmidt

IPC分类号： B60N2/32 ,  B60T8/172 ,  B62D33/06 ,  H03L7/00 ,  H03K5/00

CPC分类号： H03L7/00 ,  B60N2/32 ,  B60T8/172 ,  B62D33/0612

摘要： Clock pulses are multiplied by a ratio less than 1 of which the numerator is controlled by a reversible counter. The multiplier output pulses initiate new countdown cycles of a second counter beginning with the clock pulse following the onset of an input frequency pulse and ending with the clock pulse following the onset of the next input frequency pulse. The state of the count at the end of the cycle determines whether the reversible counter will be left unchanged, advanced, or counted back and hence, whether the multiplier output frequency will be left unchanged, increased or reduced. The initial countdown value of the second counter is provided by a long term store which determines the frequency multiplication ratio. The circuit is usable to multiply a variable input frequency in a vehicle brake anti-lock system.

摘要翻译： 时钟脉冲乘以小于1的比例，其中分子由可逆计数器控制。 乘法器输出脉冲启动第二个计数器的新的倒计时循环，从输入频率脉冲开始之后的时钟脉冲开始，并在下一个输入频率脉冲开始之后以时钟脉冲结束。 循环结束时的计数状态决定了可逆计数器是否保持不变，高位或倒计时，因此乘法器输出频率是否保持不变，增加或减少。 第二计数器的初始倒计时值由确定倍频比的长期存储器提供。 该电路可用于在车辆制动防抱死系统中乘以可变输入频率。