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公开(公告)号：EP0961020B1
公开(公告)日：2004-07-14
申请号：EP99109497.0
申请日：1999-05-12
发明人： Aoki, Keiichiro
IPC分类号： F02D41/14 , F02D41/22 , G01N27/406
CPC分类号： F02D41/1495 , F02D41/1455 , F02D2041/1432
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公开(公告)号：EP0778405A3
公开(公告)日：1999-10-20
申请号：EP96117422.4
申请日：1996-10-30
发明人： Aoki, Keiichiro
IPC分类号： F02D41/14 , G01N27/406
CPC分类号： F02D41/1494 , G01N27/4067
摘要： This invention provides a heater control system applied to an air-fuel ratio sensor to prevent the sensor being cooled during an extended idling operation after high-load running. An oxygen concentration detecting element 111 of an air-fuel ratio sensor 11 is heated by a heater 112 installed in the sensor, and its temperature is controlled to about 650°C. When a radiator cooling fan functions during idling or low-speed running after high-load running, a controller 13 detects a function of the fan and increases an electric power supplied to the heater. The heater controller prevents the sensor thus being cooled by the fan and the detection accuracy of the sensor becoming worse.
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公开(公告)号：EP0826881A3
公开(公告)日：1999-10-13
申请号：EP97402021.6
申请日：1997-08-29
摘要： An ignition device for an internal combustion engine capable of suppressing not only a decrease in the discharge energy of the spark plug but also the LC resonance itself. When an igniter 13 is turned on by an ignition timing control unit 14 and a current flows into a primary coil 111 of the igniter 11, a FET 31 is turned off by the ignition timing control unit 14, whereby the primary coil is cut off from an LC resonance-absorbing resistor 32 to prevent a decrease in the current flowing into the primary coil. The ignition timing control unit 14 turns the igniter 13 off and turns the FET 31 on a predetermined period after the start of discharge of the secondary coil 112, whereby the primary coil and the LC resonance-absorbing resistor are connected together to absorb LC resonance after the discharge of the secondary coil, in order to suppress the occurrence of noise caused by LC resonance.
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4.发明公开A heater controller for an air-fuel ratio sensor 失效Heizungsreglerfüreinen Luft-Kraftstoffverhältnissensor
公开(公告)号：EP0778405A2
公开(公告)日：1997-06-11
申请号：EP96117422.4
申请日：1996-10-30
发明人： Aoki, Keiichiro
IPC分类号： F02D41/14 , G01N27/406
CPC分类号： F02D41/1494 , G01N27/4067
摘要： This invention provides a heater control system applied to an air-fuel ratio sensor to prevent the sensor being cooled during an extended idling operation after high-load running.
An oxygen concentration detecting element 111 of an air-fuel ratio sensor 11 is heated by a heater 112 installed in the sensor, and its temperature is controlled to about 650°C. When a radiator cooling fan functions during idling or low-speed running after high-load running, a controller 13 detects a function of the fan and increases an electric power supplied to the heater. The heater controller prevents the sensor thus being cooled by the fan and the detection accuracy of the sensor becoming worse.摘要翻译： 本发明提供了一种应用于空燃比传感器的加热器控制系统，以防止在高负载运行之后的延长空转操作期间传感器被冷却。 空燃比传感器11的氧浓度检测元件111由安装在传感器中的加热器112加热，其温度控制在约650℃。当散热器冷却风扇在空转或低速运行之后起作用 高负荷运行时，控制器13检测风扇的功能并增加供给到加热器的电力。 加热器控制器防止传感器被风扇冷却，并且传感器的检测精度变差。
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公开(公告)号：EP1930574B1
公开(公告)日：2012-01-25
申请号：EP08151822.7
申请日：2004-12-09
发明人： Aoki, Keiichiro
CPC分类号： F02D41/1494 , F02D35/0023 , F02D41/061 , F02D41/062 , F02D41/1454 , F02D41/149 , G01N27/4067
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6.发明授权
公开(公告)号：EP0826882B1
公开(公告)日：2003-06-04
申请号：EP97402022.4
申请日：1997-08-29
CPC分类号： F02P17/12 , G01L23/221 , G01L23/225
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公开(公告)号：EP0961020A2
公开(公告)日：1999-12-01
申请号：EP99109497.0
申请日：1999-05-12
发明人： Aoki, Keiichiro
IPC分类号： F02D41/14 , F02D41/22 , G01N27/406
CPC分类号： F02D41/1495 , F02D41/1455 , F02D2041/1432
摘要： A control device for an air-fuel ratio sensor (1) for detecting, from an oxygen concentration detecting device (2), a current corresponding to a concentration of oxygen contained in a gas by applying a voltage to the oxygen concentration detecting device (2). The control device detects an alternating impedance of the oxygen concentration detecting device (2) corresponding to each frequency by applying alternating voltages of a plurality of frequencies to the oxygen concentration detecting device (2) and analyzing each of the alternating impedances detected by the impedance detecting means (10,20) so as to calculate a parameter indicating a change in the characteristic of the oxygen concentration detecting device (2), and thereby achieve control of the air-fuel ratio sensor (1).
摘要翻译： 一种空燃比传感器（1）的控制装置，用于通过向氧浓度检测装置（2）施加电压，从氧浓度检测装置（2）检测与气体中所含的氧浓度对应的电流 ）。 控制装置通过向氧浓度检测装置（2）施加多个频率的交流电压来检测与各频率对应的氧浓度检测装置（2）的交流阻抗，并分析通过阻抗检测检测出的交流阻抗 装置（10,20），以计算表示氧浓度检测装置（2）的特性变化的参数，从而实现空燃比传感器（1）的控制。
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8.发明公开Device for knock detection in an internal combustion engine 失效Klopferkennungsvorrichtungfüreine Brennkraftmaschine
公开(公告)号：EP0826882A2
公开(公告)日：1998-03-04
申请号：EP97402022.4
申请日：1997-08-29
IPC分类号： F02P17/12
CPC分类号： F02P17/12 , G01L23/221 , G01L23/225
摘要： A device for detecting knocking of an internal combustion engine which, even when spike noise is generated, does not erroneously detect it as knocking. An ionic current signal detected by an ionic current detecting unit 17 is separated into a knocking frequency component passing through a band-pass filter 32 and frequency components other than the knocking frequency component passing through a low-pass filter 321 and a high-pass filter 322. When the knocking frequency component is higher than a predetermined level, it is determined that the knocking is occurring. When the frequency component other than the knocking frequency component is higher than the predetermined level, it is regarded that the spike noise is generating, so that the generation of spike noise will not be erroneously determined as knocking.
摘要翻译： 用于检测内燃机的爆震的装置，即使当产生尖峰噪声时，也不会将其错误地检测为爆震。 由离子电流检测单元17检测的离子电流信号被分离成通过带通滤波器32的爆震频率分量和通过低通滤波器321和高通滤波器的爆震频率分量以外的频率分量 当敲击频率分量高于预定水平时，确定发生敲击。 当除了爆震频率分量以外的频率分量高于预定电平时，认为是产生尖峰噪声，使得尖峰噪声的产生不会被错误地确定为敲击。
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公开(公告)号：EP1826384B1
公开(公告)日：2010-10-13
申请号：EP07103830.1
申请日：2004-12-09
发明人： Aoki, Keiichiro
CPC分类号： F02D41/1494 , F02D35/0023 , F02D41/061 , F02D41/062 , F02D41/1454 , F02D41/149 , G01N27/4067
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公开(公告)号：EP1930574A1
公开(公告)日：2008-06-11
申请号：EP08151822.7
申请日：2004-12-09
发明人： Aoki, Keiichiro
CPC分类号： F02D41/1494 , F02D35/0023 , F02D41/061 , F02D41/062 , F02D41/1454 , F02D41/149 , G01N27/4067
摘要： An exhaust sensor control system for an exhaust sensor (10) mounted in an exhaust path of an internal combustion engine is provided. The exhaust sensor (10) includes a sensor element (14) for generating an output in accordance with the status of an exhaust gas and a heater (24) for heating said sensor element (14). The exhaust sensor control system comprises cumulative lean time counting means (30, 188, 190) for counting, after internal combustion engine startup, the cumulative length of time during which the air-fuel ratio is lean; and heater control means (30, 186, 192) for controlling said heater (24) with a recovery target temperature, which is higher than a normal target temperature, set as a target temperature for said sensor element (14) until said cumulative length of time reaches a recovery determination value.
摘要翻译： 提供一种用于安装在内燃机的排气路径中的排气传感器（10）的排气传感器控制系统。 排气传感器（10）包括用于根据废气状态产生输出的传感器元件（14）和用于加热所述传感器元件（14）的加热器（24）。 排气传感器控制系统包括累积稀薄时间计数装置（30,188,190），用于在内燃机启动之后计算空燃比稀薄的累积时间长度; 以及加热器控制装置（30,186,192），用于以设定为所述传感器元件（14）的目标温度的高于正常目标温度的恢复目标温度来控制所述加热器（24），直到所述累积长度 时间达到恢复判定值。
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