-
11.发明授权
公开(公告)号：EP0816656B1
公开(公告)日：2001-08-01
申请号：EP97109913.0
申请日：1997-06-18
IPC分类号： F02D41/14
CPC分类号： F02D41/1474 , F01N3/22 , F02D35/003
-
公开(公告)号：EP0833148A3
公开(公告)日：1998-10-07
申请号：EP97116325.8
申请日：1997-09-19
IPC分类号： G01N27/419 , G01N27/407
CPC分类号： G01N27/4065 , G01N27/419
摘要： An air/fuel ratio sensor is controlled such that the oxygen concentration of the measurement gas can be detected from a pump current substantially instantaneously after a heater turns on. In the air/fuel ratio sensor an oxygen pumping cell and an oxygen concentration measuring cell are each formed of a solid electrolytic layer interposed between a pair of porous electrodes. One of the electrodes of each cell defines a measurement gas chamber in which the diffusion of the measurement gas is controlled. After a micro current is supplied to the other electrode of the oxygen concentration measuring cell for a predetermined period of time, thereby forming an internal reference oxygen source, the supply of the micro current is stopped and at the same time a pump current in the oxygen pumping cell starts to be controlled until the interelectrode voltage of the oxygen concentration measuring cell reaches a target voltage. After the air/fuel ratio sensor is activated, the supply of the micro current is restarted.
-
公开(公告)号：EP0833148A2
公开(公告)日：1998-04-01
申请号：EP97116325.8
申请日：1997-09-19
IPC分类号： G01N27/419 , G01N27/407
CPC分类号： G01N27/4065 , G01N27/419
摘要： An air/fuel ratio sensor is controlled such that the oxygen concentration of the measurement gas can be detected from a pump current substantially instantaneously after a heater turns on. In the air/fuel ratio sensor an oxygen pumping cell and an oxygen concentration measuring cell are each formed of a solid electrolytic layer interposed between a pair of porous electrodes. One of the electrodes of each cell defines a measurement gas chamber in which the diffusion of the measurement gas is controlled. After a micro current is supplied to the other electrode of the oxygen concentration measuring cell for a predetermined period of time, thereby forming an internal reference oxygen source, the supply of the micro current is stopped and at the same time a pump current in the oxygen pumping cell starts to be controlled until the interelectrode voltage of the oxygen concentration measuring cell reaches a target voltage. After the air/fuel ratio sensor is activated, the supply of the micro current is restarted.
摘要翻译： 空气/燃料比传感器被控制为使得测量气体的氧气浓度可以在加热器接通之后基本瞬时地从泵电流中检测。 在空燃比传感器中，氧气抽吸单元和氧气浓度测量单元各自由插入在一对多孔电极之间的固体电解质层形成。 每个电池的一个电极限定了测量气体室，在该测量气体室中测量气体的扩散被控制。 在将氧气浓度测量单元的另一个电极提供微电流一段预定的时间，从而形成内部参考氧源之后，停止供应微电流，同时停止氧气中的泵电流 泵送单元开始被控制，直到氧浓度测量单元的电极间电压达到目标电压。 在空燃比传感器启动后，微电流的供应重新开始。
-
公开(公告)号：EP0713970A1
公开(公告)日：1996-05-29
申请号：EP95120721.6
申请日：1992-11-30
CPC分类号： F02P17/12 , F02P2017/006 , F02P2017/123 , G01R15/16 , G01R31/007
摘要： In a sparkplug voltage probe device which detects a voltage applied to each of spark plugs installed in an internal combustion engine by way of corresponding cables so as to analyse a burning condition in the internal combustion engine on the basis of the voltage applied to each of the spark plugs, an insulator base is attached to the internal combustion engine. An upper surface of the insulator base has a plurality of grooves in which the corresponding cables are placed. An electrode plate is embedded in the insulator base along the grooves to form a static capacity between the electrode plate and the cables. Both sides of the electrode plate are longitudinally extended to be longer than a central portion of the electrode plate to substantially form a capacitance adjusting means so as to even a distribution of the static capacity therebetween.
摘要翻译： 在一种火花塞电压探测装置中，该火花塞电压探测装置通过相应的电缆检测施加到安装在内燃机中的每个火花塞的电压，以便基于施加到每个火花塞上的电压来分析内燃机中的燃烧状态 火花塞，绝缘子基座连接到内燃机上。 绝缘基体的上表面具有多个沟槽，相应的电缆置于其中。 电极板沿沟槽嵌入绝缘体基体中以在电极板和电缆之间形成静电容量。 电极板的两侧纵向延伸得比电极板的中央部分长，以基本上形成电容调节装置，从而均匀地分配静电电容。
-
15.发明公开
公开(公告)号：EP0281337A3
公开(公告)日：1989-12-13
申请号：EP88301710.5
申请日：1988-02-26
CPC分类号： G01N21/43 , G01J2001/1636 , G01J2001/444 , G01N21/85 , G01N2201/0621
摘要： A detector device for mixing ratio of petrol and alcohol or the like comprising; an optically permeable column (3), one end of which has a specular layer (La), and projects to be immersed the outer surface with a mixing liquid of different kinds of components; a light emitting diode (5) placed to face the other end of the optically permeable column so that the light beams therefrom are incident on a boundary (Bo) between the optically permeable column and the mixing liquid, the light beams incident on the boundary at less than a critical angle being totally refracted, while the light beams incident on the boundary at more than a critical angle being totally reflected, the critical angle depending on a mixing degree of the mixing liquid; a photo diode (6) placed on the base plate in coplanar relationship with the light emitting diode so as to receive the light beams reflected at the boundary, or at the specular layer to go back through the column to fall thereon so as to generate an output in accordance with the light intensity received; and the column determining its lengthwise dimension and a radial dimension measured from a point of the light emitting diode to be such as to only include light beams extending from the one which is incident on the boundary at a critical angle to totally reflect only once and reflect back at the specular layer so as to directly fall on the photo diode when one component of the mixing liquid is one specified value, to other light beams which is incident on the boundary at a critical angle to totally reflect only once and reflect back at the specular layer so as to directly fall on the photo diode when the one component of the mixing liquid is other specified value.
-
公开(公告)号：EP0869356A3
公开(公告)日：2000-10-25
申请号：EP98105804.3
申请日：1998-03-30
IPC分类号： G01N27/407
CPC分类号： G01N27/417 , G01N27/4074
摘要： An NO x sensor capable of accurately determining the concentration of NO x contained in a gas to be analyzed (measurement gas) using a simple circuit. The NO x sensor includes a first measurement space (20) and a second measurement space (26). The first measurement space (20) communicates with the measurement gas via a first diffusion controlling layer (4d), and the second measurement space (26) communicates with the first measurement space via a second diffusion controlling layer (6d). A first pumping current I p1 is controlled such that an output from a Vs cell is used as a reference voltage V co to control the amount of oxygen flowing into the second measurement space (26) at a constant level. A constant voltage is applied to the second pumping cell (8) so as to decompose the NO x component of the measurement gas contained in the second measurement space (26), and to pump out the resulting oxygen from the second measurement space (26). Accordingly, the concentration of NO x contained in the measurement gas can be obtained from second pumping current I p2 . The electrode of the Vs cell located on the side of the first measurement space (20) is formed around the periphery of or on a portion of the diffusion controlling layer (6d) of the Vs cell. As a result, the amount of oxygen flowing from the first measurement space (20) into the second measurement space (26) can be accurately determined by means of the Vs cell. Also, the NO x concentration can be accurately determined without the need for compensation.
-
17.发明公开An air/fuel ratio detection device and an air/fuel ratio control device 失效Einrichtung zur Detektion des Luft /Kraftstoffverhältnissesund zur Steuerung des Luft /Kraftstoffverhältnisses
公开(公告)号：EP0816656A3
公开(公告)日：1999-11-10
申请号：EP97109913.0
申请日：1997-06-18
IPC分类号： F02D41/14
CPC分类号： F02D41/1474 , F01N3/22 , F02D35/003
摘要： An air/fuel ratio detection device and an air/fuel ratio control device, in which combustion of an engine is controlled with a simple means and toxic substances in exhaust gas discharged from the engine are reduced. Time A during which a lean signal is at a high level is measured. If the time A is shorter than the predetermined value, it is determined that the air/fuel ratio is richer than a target value, and time B during which an electromagnetic valve 21 is open is lengthened, increasing the quantity of supply air and making leaner the fuel mixed air, such that the target air/fuel ratio is approached. If the time A is longer than the predetermined value, it is determined that the air/fuel ratio is leaner and the time B is shortened.
摘要翻译： 一种空气/燃料比检测装置和空燃比控制装置，其中以简单的方式控制发动机的燃烧，并且减少从发动机排出的废气中的有毒物质。 测量稀疏信号处于高电平的时间A. 如果时间A短于预定值，则确定空燃比比目标值更浓，并且电磁阀21打开的时间B被延长，从而增加供气量并使其变稀 燃料混合空气，使得目标空气/燃料比接近。 如果时间A长于预定值，则确定空燃比较稀，时间B缩短。
-
18.发明公开
公开(公告)号：EP0816656A2
公开(公告)日：1998-01-07
申请号：EP97109913.0
申请日：1997-06-18
IPC分类号： F02D41/14
CPC分类号： F02D41/1474 , F01N3/22 , F02D35/003
摘要： An air/fuel ratio detection device and an air/fuel ratio control device, in which combustion of an engine is controlled with a simple means and toxic substances in exhaust gas discharged from the engine are reduced. Time A during which a lean signal is at a high level is measured. If the time A is shorter than the predetermined value, it is determined that the air/fuel ratio is richer than a target value, and time B during which an electromagnetic valve 21 is open is lengthened, increasing the quantity of supply air and making leaner the fuel mixed air, such that the target air/fuel ratio is approached. If the time A is longer than the predetermined value, it is determined that the air/fuel ratio is leaner and the time B is shortened.
-
公开(公告)号：EP0560603B1
公开(公告)日：1997-05-14
申请号：EP93301842.6
申请日：1993-03-11
CPC分类号： H01T13/467 , F02P17/12 , F02P2017/121 , F02P2017/123 , F02P2017/125
-
20.发明授权
公开(公告)号：EP0570189B1
公开(公告)日：1996-10-16
申请号：EP93303619.6
申请日：1993-05-11
发明人： Miyata, Shigeru , Ito, Yasuo , Yoshida, Hideji
CPC分类号： G01R31/006 , F02P17/12 , F02P2017/006 , F02P2017/123 , F02P2017/125
-
-
-
-
-
-
-
-
-
搜索结果
36 条记录 (耗时 0.012 秒)
