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    Temperature estimating apparatus for internal combustion engine
    1.
    发明授权
    Temperature estimating apparatus for internal combustion engine 失效
    内燃机温度估算装置

    公开(公告)号：US06758038B2

    公开(公告)日：2004-07-06

    申请号：US10233683

    申请日：2002-09-04

    申请人： Masaki Ueno ,  Yoshihisa Iwaki ,  Masahiro Sato ,  Hideharu Yamazaki

    发明人： Masaki Ueno ,  Yoshihisa Iwaki ,  Masahiro Sato ,  Hideharu Yamazaki

    IPC分类号： F01N300

    CPC分类号： G01K7/42 ,  F02D41/024 ,  F02D41/047 ,  F02D41/1446 ,  F02D2041/0067 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02D2200/0804 ,  G01K2205/04 ,  Y02T10/26

    摘要： A temperature estimating apparatus for an internal combustion engine is provided for correctly calculating the temperature of an exhaust device even when the internal combustion engine is started under low temperature conditions. The temperature estimating apparatus comprises an ECU for estimating the temperature of a hydrocarbon adsorbent in an exhaust system of the internal combustion engine through calculations. The ECU calculates an estimated adsorbent temperature of the adsorbent in accordance with an engine rotational speed, an absolute intake pipe inner pressure, an engine water temperature, an intake temperature, and a detected humidity of exhaust gases. This calculation is started when condensation, which has occurred within an intake pipe, is eliminated.

    摘要翻译： 内燃机的温度推定装置，即使内燃机在低温条件下起动，也能够正确地计算排气装置的温度。 温度推定装置包括ECU，用于通过计算来估计内燃机的排气系统中的烃吸附剂的温度。 ECU根据发动机转速，绝对进气管内压，发动机水温，进气温度和检测到的排气湿度来计算吸附剂的吸附剂的估计温度。 当进气管内发生的冷凝水被消除时，开始计算。

    Adsorption amount sensor and coking sensor for internal combustion engine
    3.
    发明授权
    Adsorption amount sensor and coking sensor for internal combustion engine 失效
    内燃机吸附量传感器和焦化传感器

    公开(公告)号：US06602471B1

    公开(公告)日：2003-08-05

    申请号：US09568125

    申请日：2000-05-10

    申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Yuji Yasui ,  Takashi Haga ,  Masaki Ueno ,  Tetsuo Endo

    发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Yuji Yasui ,  Takashi Haga ,  Masaki Ueno ,  Tetsuo Endo

    IPC分类号： G01N3096

    CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N13/009 ,  F01N2370/04 ,  F01N2560/028 ,  G01N27/043 ,  G01N27/221 ,  G01N33/0047 ,  Y10T436/21

    摘要： There are provided an adsorption amount sensor which is capable of accurately detecting an amount of hydrocarbons or water adsorbed by a zeolite of a hydrocarbon adsorber, even during operation of an engine, as well as a coking sensor which is capable of accurately detecting an amount of coke deposition on inner surfaces of a pipe of an internal combustion engine, even during operation of an engine. The adsorption amount sensor has a plurality of electrodes arranged in the vicinity of the hydrocarbon adsorber in a manner opposed to each other and each carrying a zeolite thereon. The amount of hydrocarbons adsorbed is detected by using a parameter indicative of changes in at least one of a resistance value between the electrodes and an electrical capacitance between the electrodes. The coking sensor has a plurality of electrodes arranged within the pipe of the engine in a manner opposed to each other and each having a surface thereof coated with an insulating material. The amount of coke deposition is detected by using a parameter indicative of changes in at least one of a resistance value between the electrodes and an electrical capacitance between the electrodes.

    摘要翻译： 提供了一种吸附量传感器，其能够精确地检测碳氢化合物吸附器的沸石或发动机的操作期间吸附的烃的量，以及焦化传感器，该焦化传感器能够精确地检测 即使在发动机的运转期间，内燃机的管的内表面上的焦炭沉积。 吸附量传感器具有以彼此相对的方式布置在烃吸附器附近的多个电极，并且各自在其上承载沸石。 通过使用指示电极之间的电阻值和电极之间的电容中的至少一个的变化的参数来检测吸附的烃的量。 焦化传感器具有以彼此相对的方式布置在发动机的管内的多个电极，并且每个电极的表面涂覆有绝缘材料。 通过使用指示电极之间的电阻值和电极之间的电容中的至少一个的变化的参数来检测焦炭沉积量。

    Adsorbent state determining apparatus
    6.
    发明授权
    Adsorbent state determining apparatus 失效

    公开(公告)号：US06640540B2

    公开(公告)日：2003-11-04

    申请号：US09978020

    申请日：2001-10-17

    申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    IPC分类号： F01N300

    CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/30 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/12 ,  Y02T10/47

    摘要： An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.

    Exhaust gas purification system of internal combustion engine
    7.
    发明授权
    Exhaust gas purification system of internal combustion engine 失效
    内燃机废气净化系统

    公开(公告)号：US06286306B1

    公开(公告)日：2001-09-11

    申请号：US09498653

    申请日：2000-02-07

    申请人： Shiro Takakura ,  Yuji Yasui ,  Tadashi Satoh ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Masahiro Sato

    发明人： Shiro Takakura ,  Yuji Yasui ,  Tadashi Satoh ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Masahiro Sato

    IPC分类号： F01N300

    CPC分类号： B01D53/9495 ,  B01D53/9454 ,  F01N3/0835 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F02M26/15 ,  F02M26/48 ,  Y02T10/22

    摘要： A system for purifying exhaust gas generated by an internal combustion engine having a bypass exhaust gas passage branching from an exhaust pipe which is opened or closed by a switch-over valve, and an adsorbent which adsorbs unburneds component in the exhaust gas installed at the bypass exhaust passage. In the system, when the engine operation is within a high engine speed and high load region, the switch-over valve is operated to open the bypass exhaust gas passage to reduce noise due to switch-over valve chattering, etc. Similarly, the bypass exhaust gas passage is opened at that range, when the exhaust gas temperature is greater or equal to a predetermined value, to introduce high temperature exhaust gas to burn away cloggy material adhered to the adsorbent which would otherwise deteriorate or degrade the adsorbent.

    摘要翻译： 一种用于净化由内燃机产生的废气的系统，该内燃机具有从由切换阀打开或关闭的排气管分支的旁通废气通道，以及吸附在旁路旁的排气中的未燃烧成分 排气通道。 在该系统中，当发动机运转在高发动机转速和高负载区域内时，切换阀被操作以打开旁路废气通道，以减少切换阀颤动等引起的噪音。类似地，旁路 废气通道在该范围内打开，当废气温度大于或等于预定值时，引入高温废气以消除附着在吸附剂上的阻塞材料，否则会使吸附剂劣化或降解。

    Exhaust switch-over valve malfunction detection system of internal combustion engine
    10.
    发明授权
    Exhaust switch-over valve malfunction detection system of internal combustion engine 失效
    内燃机排气开关阀故障检测系统

    公开(公告)号：US06182445B2

    公开(公告)日：2001-02-06

    申请号：US09498654

    申请日：2000-02-07

    申请人： Hideharu Yamazaki ,  Yuji Yasui ,  Takashi Haga ,  Katsumi Saito ,  Yoshihisa Iwaki

    发明人： Hideharu Yamazaki ,  Yuji Yasui ,  Takashi Haga ,  Katsumi Saito ,  Yoshihisa Iwaki

    IPC分类号： F01N300

    CPC分类号： F02D41/221 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2550/06 ,  F01N2900/0422 ,  F02M26/15 ,  Y02T10/22 ,  Y02T10/40 ,  Y02T10/47 ,  Y10T137/8158

    摘要： A system for detecting malfunctions of an exhaust switch-over valve of an internal combustion engine, which opens/closes a bypass exhaust gas passage branched from an exhaust pipe of the engine and storing an adsorbent that adsorbs unburned components of the exhaust gas generated by the engine when the engine is started. In the system, the entrance temperature and the exit temperature in the bypass exhaust gas passage are detected and compared with each other in a first detection period when the passage is opened and in a second detection period when the passage is closed. Based on this comparison, it is determined whether the valve malfunctions. Alternatively, the valve malfunction is determined by comparing the valve opening/closing state with an instruction to operate the valve. With this, little time lag exists in the detection, thereby improving malfunction detection accuracy.

    摘要翻译： 一种用于检测内燃机的排气切换阀的故障的系统，其对从发动机的排气管分支的旁通废气通道进行开闭，并且存储吸附由所述排气管产生的废气的未燃烧成分的吸附剂 发动机起动时发动机。 在该系统中，当通道打开时的第一检测时段和通道关闭的第二检测期间，检测旁路排气通道中的入口温度和出口温度并进行比较。 基于此比较，确定阀是否故障。 或者，通过将阀打开/关闭状态与操作阀的指令进行比较来确定阀故障。 因此，在检测中存在很少的时滞，从而提高故障检测精度。