公开(公告)号：US07393441B2

公开(公告)日：2008-07-01

申请号：US10825293

申请日：2004-04-16

申请人： Kenji Tashiro ,  Kazutaka Hattori

发明人： Kenji Tashiro ,  Kazutaka Hattori

IPC分类号： G01N27/407

CPC分类号： G01N27/4065 ,  F02D41/1454

摘要： An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate device impedance. After device impedance calculation, a reverse voltage is applied to the oxygen sensor with a view toward promptly negating the influence of voltage application on the sensor output. Subsequently, the sensor output of the oxygen sensor is sampled at sampling time intervals until it is concluded that the device impedance calculation period is over.

公开(公告)号：US20080109148A1

公开(公告)日：2008-05-08

申请号：US12005266

申请日：2007-12-27

申请人： Kenji Tashiro ,  Kazutaka Hattori

发明人： Kenji Tashiro ,  Kazutaka Hattori

IPC分类号： F02D45/00 ,  G01N33/00

CPC分类号： G01N27/4065 ,  F02D41/1454

摘要： An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate device impedance. After device impedance calculation, a reverse voltage is applied to the oxygen sensor with a view toward promptly negating the influence of voltage application on the sensor output. Subsequently, the sensor output of the oxygen sensor is sampled at sampling time intervals until it is concluded that the device impedance calculation period is over.

摘要翻译： 使用氧传感器来确定排气空燃比是富还是偏。 以设备阻抗计算间隔向氧传感器施加电压以计算器件阻抗。 器件阻抗计算后，向氧传感器施加反向电压，以便及时否定电压施加对传感器输出的影响。 随后，以采样时间间隔对氧传感器的传感器输出进行采样，直至得出设备阻抗计算周期结束为止。

公开(公告)号：US5394954A

公开(公告)日：1995-03-07

申请号：US40704

申请日：1993-03-31

申请人： Kenji Tashiro ,  Kimitoshi Murata ,  Akito Adachi

发明人： Kenji Tashiro ,  Kimitoshi Murata ,  Akito Adachi

IPC分类号： B60K28/16 ,  B60K31/04 ,  B60K31/00

CPC分类号： B60K28/16 ,  B60K31/047 ,  B60W2550/148

摘要： An engine control apparatus includes a first intake valve and a second intake valve provided along an intake passage. First and second actuators drive the respective throttle valves. A setting unit sets a vehicle target speed in the constant cruising speed control mode. A first control unit controls the first actuator so as to maintain the actual vehicle speed at the target speed during the constant cruising speed control mode. An angle sensor detects the angle of the first throttle valve. A mode memory stores information about a plurality of control modes to be used in controlling the second throttle valve. A mode selector selects one of the control modes. Each control mode stored in the mode memory defines the target angle of the second throttle valve that depends on the angle of the first throttle valve. In accordance with the control mode selected by the mode selector, a second control unit controls the second actuator in such a way that the angle of the second throttle valve becomes the target angle determined in accordance with the first throttle valve angle. The control apparatus includes a regulator unit for regulating the first and/or the second control units, so as to control the first throttle valve in accordance with the control mode specified for the constant cruising speed control mode, while the constant speed control mode is in progress.

摘要翻译： 发动机控制装置包括沿着进气通道设置的第一进气门和第二进气门。 第一和第二致动器驱动相应的节流阀。 设定单元以恒定巡航速度控制模式设定车辆目标速度。 第一控制单元控制第一致动器，以便在恒定巡航速度控制模式期间将实际车速保持在目标速度。 角度传感器检测第一节流阀的角度。 模式存储器存储关于要用于控制第二节流阀的多个控制模式的信息。 模式选择器选择其中一种控制模式。 存储在模式存储器中的每个控制模式定义了第二节流阀的目标角度，其取决于第一节流阀的角度。 根据由模式选择器选择的控制模式，第二控制单元以第二节气门的角度成为根据第一节气门角所确定的目标角度的方式控制第二致动器。 控制装置包括调节单元，用于调节第一和/或第二控制单元，以便根据为恒定巡航速度控制模式指定的控制模式来控制第一节流阀，而恒速控制模式处于 进展。

公开(公告)号：US08218046B1

公开(公告)日：2012-07-10

申请号：US12640275

申请日：2009-12-17

申请人： Kenji Tashiro

发明人： Kenji Tashiro

IPC分类号： H04N3/14 ,  H04N5/335 ,  H04N7/18 ,  H04N5/235 ,  G03B7/00

CPC分类号： H04N5/235 ,  H04N5/35527 ,  H04N17/002

摘要： A video traffic system comprises a dual-slope, high dynamic range CMOS camera. Shutter, gain, and pedestal control and set-points for the dual-slope integration knee threshold and trigger time are computed from an operational model of the camera response using an input from a wireless light sensor. Darker pixels can integrate over the full shutter period, but bright pixels that are integrating too quickly and will saturate are reset to an adjustable level around 78% of maximum. Such reset occurs at an adjustable time about 93% of the full shutter period. The bright pixels are released to integrate from that point until the shutter closes.

摘要翻译： 视频交通系统包括双斜率，高动态范围的CMOS照相机。 使用来自无线光传感器的输入，从相机响应的操作模型计算双斜率积分膝盖阈值和触发时间的快门，增益和基座控制和设定点。 较深的像素可以在整个快门周期内进行集成，但是集成太快并且饱和的亮像素将被重置为最大值的78％的可调节水平。 这种复位发生在全快门周期的约93％的可调节时间。 明亮的像素被释放以从该点集成直到快门关闭。

公开(公告)号：US07846313B2

公开(公告)日：2010-12-07

申请号：US12005266

申请日：2007-12-27

申请人： Kenji Tashiro ,  Kazutaka Hattori

发明人： Kenji Tashiro ,  Kazutaka Hattori

IPC分类号： G01N27/407

CPC分类号： G01N27/4065 ,  F02D41/1454

摘要： An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate device impedance. After device impedance calculation, a reverse voltage is applied to the oxygen sensor with a view toward promptly negating the influence of voltage application on the sensor output. Subsequently, the sensor output of the oxygen sensor is sampled at sampling time intervals until it is concluded that the device impedance calculation period is over.

摘要翻译： 使用氧传感器来确定排气空燃比是富还是偏。 以设备阻抗计算间隔向氧传感器施加电压以计算器件阻抗。 器件阻抗计算后，向氧传感器施加反向电压，以便及时否定电压施加对传感器输出的影响。 随后，以采样时间间隔对氧传感器的传感器输出进行采样，直至得出设备阻抗计算周期结束为止。

公开(公告)号：US20060277971A1

公开(公告)日：2006-12-14

申请号：US11448794

申请日：2006-06-08

申请人： Kenji Tashiro ,  Yasushi Iwazaki ,  Masanobu Kanamaru ,  Hiroshi Sawada ,  Masaya Kawaji ,  Takashi Matsui

发明人： Kenji Tashiro ,  Yasushi Iwazaki ,  Masanobu Kanamaru ,  Hiroshi Sawada ,  Masaya Kawaji ,  Takashi Matsui

IPC分类号： G01N33/00

CPC分类号： G01N27/4065

摘要： An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal output from the air-fuel ratio sensor is corrected during a time period “A”. The time period “A” consists of a reverse-voltage application time period in which the reverse voltage is applied, and a return time period “T” after application of the reverse voltage ends. The return time period “T” is set based on sensor impedance correlated with the internal resistance of the air-fuel ratio sensor. The return time period “T” decreases as the sensor impedance decreases.

摘要翻译： 提供输出用于空燃比的反馈控制的传感器信号的空燃比传感器。 通过向空燃比传感器施加反向电压来确定是否存在元件裂纹。 在空燃比传感器输出的传感器信号的值在时间段“A”期间被校正。 时间段“A”包括施加反向电压的反向电压施加时间段，反向电压施加后的返回时间段“T”结束。 基于与空燃比传感器的内阻相关的传感器阻抗来设定返回时间段“T”。 返回时间段“T”随着传感器阻抗的减小而减小。

公开(公告)号：US07434450B2

公开(公告)日：2008-10-14

申请号：US11448794

申请日：2006-06-08

申请人： Kenji Tashiro ,  Yasushi Iwazaki ,  Masanobu Kanamaru ,  Hiroshi Sawada ,  Masaya Kawaji ,  Takashi Matsui

发明人： Kenji Tashiro ,  Yasushi Iwazaki ,  Masanobu Kanamaru ,  Hiroshi Sawada ,  Masaya Kawaji ,  Takashi Matsui

IPC分类号： G01R31/30 ,  G01R31/3163 ,  G01N27/12 ,  G01N27/30

CPC分类号： G01N27/4065

摘要： An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal output from the air-fuel ratio sensor is corrected during a time period “A”. The time period “A” consists of a reverse-voltage application time period in which the reverse voltage is applied, and a return time period “T” after application of the reverse voltage ends. The return time period “T” is set based on sensor impedance correlated with the internal resistance of the air-fuel ratio sensor. The return time period “T” decreases as the sensor impedance decreases.

摘要翻译： 提供输出用于空燃比的反馈控制的传感器信号的空燃比传感器。 通过向空燃比传感器施加反向电压来确定是否存在元件裂纹。 在空燃比传感器输出的传感器信号的值在时间段“A”期间被校正。 时间段“A”包括施加反向电压的反向电压施加时间段，反向电压施加后的返回时间段“T”结束。 基于与空燃比传感器的内阻相关的传感器阻抗来设定返回时间段“T”。 返回时间段“T”随着传感器阻抗的减小而减小。

公开(公告)号：US07340945B2

公开(公告)日：2008-03-11

申请号：US11499778

申请日：2006-08-07

申请人： Kenji Tashiro

发明人： Kenji Tashiro

IPC分类号： G01M19/00

CPC分类号： G01N27/4175 ,  F02D41/123 ,  F02D41/222

摘要： An air-fuel ratio sensor has an exhaust-side electrode and an atmosphere-side electrode. The atmosphere-side electrode is disposed in an atmosphere layer that communicates with the atmosphere. Since the air-fuel ratio sensor is disposed in an exhaust passage, exhaust gas enters the atmosphere layer if a sensor crack occurs. Ordinarily, forward voltage is applied to the air-fuel ratio sensor to obtain an output thereof in accordance with the air-fuel ratio. Immediately after the applied voltage is switched to reverse voltage, sensor current i1 in accordance with the impedance flows, regardless of the presence/absence of a sensor crack. After that, the sensor current converges to a value i2 that is in accordance with the oxygen concentration in the atmosphere layer. The presence/absence of a sensor crack is determined by comparing the value obtained by correcting i2 by i1, with a criterion value.

摘要翻译： 空燃比传感器具有排气侧电极和气氛侧电极。 气氛侧电极设置在与大气连通的气氛层中。 由于空燃比传感器设置在排气通路中，所以如果发生传感器裂纹，则排气进入气氛层。 通常，向空燃比传感器施加正向电压，以根据空燃比获得其输出。 在施加的电压切换到反向电压之后，不管传感器是否存在裂缝，传感器电流i 1根据阻抗流动。 之后，传感器电流收敛到与气氛层中的氧浓度相一致的值i 2。 传感器裂纹的存在/不存在通过将通过校正i 2获得的值与标准值进行比较来确定。

公开(公告)号：US07909970B2

公开(公告)日：2011-03-22

申请号：US12005265

申请日：2007-12-27

申请人： Kenji Tashiro ,  Kazutaka Hattori

发明人： Kenji Tashiro ,  Kazutaka Hattori

IPC分类号： G01N27/407

CPC分类号： G01N27/4065 ,  F02D41/1454

摘要： An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate device impedance. After device impedance calculation, a reverse voltage is applied to the oxygen sensor with a view toward promptly negating the influence of voltage application on the sensor output. Subsequently, the sensor output of the oxygen sensor is sampled at sampling time intervals until it is concluded that the device impedance calculation period is over.

摘要翻译： 使用氧传感器来确定排气空燃比是富还是偏。 以设备阻抗计算间隔向氧传感器施加电压以计算器件阻抗。 器件阻抗计算后，向氧传感器施加反向电压，以便及时否定电压施加对传感器输出的影响。 随后，以采样时间间隔对氧传感器的传感器输出进行采样，直至得出设备阻抗计算周期结束为止。

公开(公告)号：US20080109147A1

公开(公告)日：2008-05-08

申请号：US12005265

申请日：2007-12-27

申请人： Kenji Tashiro ,  Kazutaka Hattori

发明人： Kenji Tashiro ,  Kazutaka Hattori

IPC分类号： F02D45/00 ,  G01N33/00

CPC分类号： G01N27/4065 ,  F02D41/1454

摘要： An oxygen sensor is employed for determining whether the exhaust air-fuel ratio is rich or lean. A voltage is applied to the oxygen sensor at device impedance calculation intervals to calculate device impedance. After device impedance calculation, a reverse voltage is applied to the oxygen sensor with a view toward promptly negating the influence of voltage application on the sensor output. Subsequently, the sensor output of the oxygen sensor is sampled at sampling time intervals until it is concluded that the device impedance calculation period is over.