公开(公告)号：US06799453B2

公开(公告)日：2004-10-05

申请号：US10372943

申请日：2003-02-26

申请人： Atsuhiro Miyauchi ,  Kojiro Tsutsumi

发明人： Atsuhiro Miyauchi ,  Kojiro Tsutsumi

IPC分类号： G01M1500

CPC分类号： F02D41/1498 ,  F02D41/22 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/1015 ,  F02D2200/501 ,  F02D2200/702 ,  G01M15/11

摘要： A system for detecting misfire occurred in an internal combustion engine installed in a vehicle, based on a rotation signal outputted by an engine speed sensor. In the system, first and second fluctuation value of the wheel rotation speed are calculated based on a signal, outputted by a wheel speed sensor, indicating a rotation speed of the vehicle wheel, and a parameter indicative of a degree of wheel rotation speed fluctuation is calculated by multiplying the calculated first and second fluctuation values. Then, the parameter is compared with a threshold value and when the number of times the parameter was equal to or greater than the threshold value has reached a predetermined value, it is discriminated that the vehicle is under a rough road running condition that affects the misfire detection and the misfire detection is disabled. With this, it becomes possible to reliably avoid false detection of misfire while ensuring that misfire detection is not erroneously disabled when misfire does occur.

摘要翻译： 基于由发动机转速传感器输出的旋转信号，在车内安装的内燃机中发生用于检测失火的系统。 在该系统中，基于由车轮速度传感器输出的指示车轮的转速的信号计算车轮转速的第一和第二变动值，并且表示车轮转速变动程度的参数为 通过乘以计算的第一和第二波动值来计算。 然后，将参数与阈值进行比较，并且当参数等于或大于阈值的次数已经达到预定值时，判别车辆处于影响失火的粗糙的道路行驶状态 检测和失火检测被禁用。 由此，可以可靠地避免错误的失火检测，同时确保在发生失火时不会错误地禁用失火检测。

公开(公告)号：US07578128B2

公开(公告)日：2009-08-25

申请号：US11878117

申请日：2007-07-20

申请人： Atsuhiro Miyauchi ,  Hirofumi Hara ,  Kazuhiko Imamura ,  Yoshinori Andou

发明人： Atsuhiro Miyauchi ,  Hirofumi Hara ,  Kazuhiko Imamura ,  Yoshinori Andou

IPC分类号： F02B33/00

CPC分类号： F02D41/221 ,  F02B37/16 ,  F02D41/0007 ,  F02D2200/0406 ,  Y02T10/144

摘要： An air bypass valve failure detecting device outputs an opening command to an air bypass valve when a throttle valve suddenly closes, thereby prevent surging from occurring in a second intake passage between a turbocharger and a throttle valve. When the opening command is outputted to the air bypass valve, failure detection for the air bypass valve is permitted only if an intake air quantity of an engine immediately before a closing command is changed to the opening command is equal to or larger than a predetermined value. Thus, it is possible to prevent the failure detecting device from erroneously determining that the air bypass valve is normal although valve closing failure of the air bypass valve has occurred. This is because, when the intake air quantity is smaller than the predetermined value, surging does not occur in the second intake passage even if the valve closing failure of the airy bypass valve has occurred.

摘要翻译： 当节气门突然闭合时，空气旁通阀故障检测装置向空气旁通阀输出打开命令，从而防止在涡轮增压器和节流阀之间的第二进气通道中发生喘振。 当打开命令被输出到空气旁通阀时，只有紧接关闭命令之前的发动机的进气量改变为打开命令，才允许空气旁通阀的故障检测等于或大于预定值 。 因此，尽管发生了空气旁通阀的关闭故障，但是可以防止故障检测装置错误地确定空气旁通阀是正常的。 这是因为，当进气量小于预定值时，即使发生通风旁通阀的关闭故障，也不会在第二进气通道中产生喘振。

公开(公告)号：US20080022679A1

公开(公告)日：2008-01-31

申请号：US11878604

申请日：2007-07-25

申请人： Hirofumi Hara ,  Atsuhiro Miyauchi ,  Kazuhiko Imamura ,  Takashi Kon ,  Yoshinori Andou

发明人： Hirofumi Hara ,  Atsuhiro Miyauchi ,  Kazuhiko Imamura ,  Takashi Kon ,  Yoshinori Andou

IPC分类号： F02D23/00

CPC分类号： F02D23/02 ,  F02B37/16 ,  F02B37/18 ,  F02B39/16 ,  F02D41/0007 ,  F02D41/10 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/221 ,  F02D2041/1431 ,  F02D2200/0406 ,  F02D2200/703 ,  Y02T10/144 ,  Y02T10/40

摘要： When an engine load QC is equal to or larger than a predetermined value, an acceleration-state determiner determines that a turbine is in an acceleration state, and a supercharging-pressure-control-state determiner determines that supercharging-pressure controller (a bypass valve, a wastegate, and a variable flap) of a turbocharger are in a maximum supercharging pressure control state (a closed valve state), i.e., when a delay coefficient α of the turbocharger calculated by a delay-coefficient calculator on the basis of an actual supercharging pressure πc and a convergent value πc* of a supercharging pressure calculated by a convergent-value calculator indicates a value peculiar to the turbocharger, a failure of the supercharging-voltage controller is determined on the basis of the delay coefficient α. Thus, it is possible to secure a high failure detection accuracy, and increase a frequency of performing failure detection even when the engine load QC suddenly changes to cause a delay in a response of the supercharging pressure πc.

摘要翻译： 当发动机负荷QC等于或大于预定值时，加速度状态确定器确定涡轮处于加速状态，增压压力控制状态确定器确定增压压力控制器（旁通阀 ，废气门和可变挡板）处于最大增压压力控制状态（关闭阀状态），即当由延迟系数计算器基于实际值计算的涡轮增压器的延迟系数α时 增压压力pic和由收敛值计算器计算的增压压力的收敛值pic *表示涡轮增压器特有的值，根据延迟系数α确定增压电压控制器的故障。 因此，即使在发动机负荷QC突然变化而导致增压压力pic的响应延迟的情况下，也可以确保高故障检测精度，并且提高执行故障检测的频率。

公开(公告)号：US20070018830A1

公开(公告)日：2007-01-25

申请号：US11476132

申请日：2006-06-28

申请人： Narizane Inoue ,  Koichi Inaba ,  Tsuyoshi Eguchi ,  Tatsuya Okayama ,  Atsuhiro Miyauchi

发明人： Narizane Inoue ,  Koichi Inaba ,  Tsuyoshi Eguchi ,  Tatsuya Okayama ,  Atsuhiro Miyauchi

IPC分类号： G08B13/14

CPC分类号： B60R25/00 ,  B60R2325/105 ,  G07B15/063 ,  G08B13/2451 ,  G08B13/2485

摘要： A vehicle component tamper detection system is provided capable of appropriately preventing tampering from occurring, and of facilitating and ensuring detection of such tampering when it occurs, while maintaining flexibility in layout and in manufacturing processes. The present invention omits wiring between an RFID 12 and an ECU 14 by employing a small radio frequency identification integrated circuit (RFID) to wirelessly transmit signals to a receiver 13. With this configuration, the present invention contributes to increased layout flexibility as well as a reduction in assembly steps and manufacturing costs. Furthermore, because the RFID 12 is small, the RFID 12 may be mixed in slurry and disposed at an inconspicuous portion of a detection target component 11. Subsequently, it is possible to hinder visual confirmation of the RFID 12, thereby making the tampering itself difficult.

摘要翻译： 提供一种能够适当地防止篡改发生的车辆部件篡改检测系统，并且在保持布局和制造过程中的灵活性的同时便于并确保发生这种篡改的检测。 本发明通过采用小型射频识别集成电路（RFID）将RFID 12和ECU 14之间的布线无线地传输到接收机13来进行信号的传输。通过这种结构，本发明有助于提高布局灵活性以及 减少组装步骤和制造成本。 此外，由于RFID 12小，因此RFID 12可以以浆料混合配置在检测对象部件11的不显眼部分。随后，可以阻止RFID12的视觉确认，从而使得篡改本身变得困难 。