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1. 发明授权

US07846313B2 Controller for gas concentration sensor 有权
标题翻译：气体浓度传感器控制器
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。

2. 发明授权

US07393441B2 Controller for gas concentration sensor 有权
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.

3. 发明申请

US20080109148A1 Controller for gas concentration sensor 有权
标题翻译：气体浓度传感器控制器
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。

4. 发明授权

US06978653B2 Abnormality detection system of oxygen sensor and abnormality detection method thereof 失效
标题翻译：氧传感器异常检测系统及其异常检测方法
公开(公告)号：US06978653B2
公开(公告)日：2005-12-27
申请号：US10790805
申请日：2004-03-03
申请人： Kazutaka Hattori
发明人： Kazutaka Hattori
IPC分类号： G01N27/41 , G01N27/26 , G01N27/417 , G01M1/00
CPC分类号： G01N27/4175
摘要： In an abnormality detection system that detects abnormality in an oxygen sensor including a detection element for outputting a current value corresponding to an oxygen concentration upon receipt of a voltage application, a negative value is applied to the oxygen sensor so as to obtain an impedance of the detection element. Then a difference between the obtained impedance of the oxygen sensor upon application of the negative voltage and the impedance of the oxygen sensor upon application of a positive voltage prior to the negative voltage application is calculated. It is determined whether there is abnormality in the oxygen sensor based on the calculated difference.
摘要翻译：在检测到氧传感器的异常的异常检测系统中，包含用于在接收到电压施加时输出与氧浓度对应的电流值的检测元件，向氧传感器施加负值，得到阻抗检测元件。然后计算在施加负电压之前获得的氧传感器的阻抗与在施加负电压之前施加正电压时的氧传感器的阻抗之间的差异。基于计算出的差异来确定氧传感器中是否存在异常。

5. 发明授权

US06957563B2 Abnormality detection device for air-fuel ratio sensor 失效
标题翻译：空燃比传感器异常检测装置
公开(公告)号：US06957563B2
公开(公告)日：2005-10-25
申请号：US10857957
申请日：2004-06-02
申请人： Kazutaka Hattori
发明人： Kazutaka Hattori
IPC分类号： F01N13/00 , F01N99/00 , F02D41/04 , F02D41/14 , F02D41/22 , F02D45/00 , G01M99/00 , G01N7/00 , G01N21/00 , G01N27/417 , G01N33/496
CPC分类号： G01N27/4175 , F02D41/042 , F02D41/1495 , F02D41/1496
摘要： A novel abnormality detection device for an air-fuel ratio sensor able to more accurately detect an abnormality, provided with an air-fuel ratio sensor arranged in an exhaust passage of an internal combustion engine for detecting an air-fuel ratio based on a current generated in accordance with a concentration of oxygen in the exhaust gas along with application of voltage and an air-fuel ratio sensor activating means for activating the air-fuel ratio sensor, wherein the activity of the air-fuel ratio sensor is maintained even after the internal combustion engine is stopped and an abnormality of the air-fuel ratio sensor is detected based on an output of the air-fuel ratio sensor upon and/or after the elapse of a first predetermined time after the internal combustion engine is stopped.
摘要翻译：一种用于能够更准确地检测异常的空燃比传感器的新型异常检测装置，其具有布置在内燃机的排气通道中的空燃比传感器，用于基于产生的电流检测空燃比根据排气中的氧浓度以及施加电压，以及用于启动空燃比传感器的空燃比传感器启动装置，其中空燃比传感器的活动即使在内部在内燃机停止之后的第一预定时间过去和/或之后，基于空燃比传感器的输出来检测内燃机停止并且检测到空燃比传感器的异常。

6. 发明申请

US20080041134A1 Oxygen sensor deterioration detection method 有权
标题翻译：氧传感器劣化检测方法
公开(公告)号：US20080041134A1
公开(公告)日：2008-02-21
申请号：US11907092
申请日：2007-10-09
申请人： Kazutaka Hattori
发明人： Kazutaka Hattori
IPC分类号： G01N33/00 , G01N25/00
CPC分类号： G01N27/4175
摘要： A deterioration detection apparatus for an oxygen sensor is able to detect an abnormality of the oxygen sensor constantly with high precision, without being affected by the temperature characteristic of the element impedance. The apparatus applies a voltage V to the oxygen sensor, and calculates an element impedance real value Rsr=V/1 of a sensor element based on the applied voltage and the current I caused to flow by the voltage. The apparatus calculates an element temperature estimated value Tex of the oxygen sensor from a factor that affects the temperature of the oxygen sensor. The apparatus determines whether the oxygen sensor has an abnormality on the basis of whether the relationship between the element impedance real value Rsr and the element temperature estimated value Tex can be regarded as a relationship that agrees with a normal temperature characteristic.
摘要翻译：用于氧传感器的劣化检测装置能够以高精度恒定地检测氧传感器的异常，而不受元件阻抗的温度特性的影响。该装置向氧传感器施加电压V，并且基于施加的电压和由电压流过的电流I来计算传感器元件的元件阻抗实际值Rsr = V / 1。该装置从影响氧传感器的温度的因素计算氧传感器的元件温度推定值Tex。该装置基于元件阻抗实际值Rsr与元件温度推定值Tex之间的关系是否可以被认为是与常温特性一致的关系来确定氧传感器是否具有异常。

7. 发明授权

US07297240B2 Oxygen sensor deterioration detection apparatus 有权
标题翻译：氧传感器劣化检测装置
公开(公告)号：US07297240B2
公开(公告)日：2007-11-20
申请号：US10706929
申请日：2003-11-14
申请人： Kazutaka Hattori
发明人： Kazutaka Hattori
IPC分类号： G01N27/41
CPC分类号： G01N27/4175
摘要： A deterioration detection apparatus for an oxygen sensor is able to detect an abnormality of the oxygen sensor constantly with high precision, without being affected by the temperature characteristic of the element impedance. The apparatus applies a voltage V to the oxygen sensor, and calculates an element impedance real value Rsr=V/1 of a sensor element based on the applied voltage and the current I caused to flow by the voltage. The apparatus calculates an element temperature estimated value Tex of the oxygen sensor from a factor that affects the temperature of the oxygen sensor. The apparatus determines whether the oxygen sensor has an abnormality on the basis of whether the relationship between the element impedance real value Rsr and the element temperature estimated value Tex can be regarded as a relationship that agrees with a normal temperature characteristic.
摘要翻译：用于氧传感器的劣化检测装置能够以高精度恒定地检测氧传感器的异常，而不受元件阻抗的温度特性的影响。该装置向氧传感器施加电压V，并且基于所施加的电压和通过电压流动的电流I来计算传感器元件的元件阻抗实际值Rsr = V / 1。该装置从影响氧传感器的温度的因素计算氧传感器的元件温度推定值Tex。该装置基于元件阻抗实际值Rsr与元件温度推定值Tex之间的关系是否可以被认为是与常温特性一致的关系来确定氧传感器是否具有异常。

8. 发明授权

US07188586B2 Fuel injection system for diesel engines 失效
标题翻译：柴油发动机燃油喷射系统
公开(公告)号：US07188586B2
公开(公告)日：2007-03-13
申请号：US10625725
申请日：2003-07-24
申请人： Kazutaka Hattori , Taisuke Murotani
发明人： Kazutaka Hattori , Taisuke Murotani
IPC分类号： F02M25/03
CPC分类号： F02M25/03 , F02B3/06 , F02M25/0225 , F02M25/0227 , F02M25/0228 , Y02T10/121
摘要： A fuel injection system for diesel engines, capable of carrying out a control operation for varying a mixing ratio of a fuel to water (inert material) arbitrarily in accordance with the magnitude of an engine load in a short period of time, and holding down the formation of nitrogen oxides to a level equal to that in a related art fuel injection system using an aqueous emulsion fuel, by uniformly mixing the fuel in the same manner as an aqueous emulsion fuel used in a related art fuel injection system, with water (inert material) in the combustion chamber. A fuel is injected from a fuel injection nozzle toward the water (inert material) held in water holding portions, or a fuel is injected from a fuel injection nozzle into the water (inert material) supplied from water supply passages.
摘要翻译：一种用于柴油发动机的燃料喷射系统，其能够执行根据发动机负荷的大小在短时间内任意地改变燃料与水（惰性材料）的混合比例的控制操作，通过以与现有技术的燃料喷射系统中使用的水性乳化燃料相同的方式将燃料与水（惰性的（惰性））均匀混合，形成氮氧化物至与现有技术的使用水乳液燃料的燃料喷射系统相同的水平材料）在燃烧室。从燃料喷射喷嘴向保持在保水部的水（惰性物质）喷射燃料，或者从燃料喷射喷嘴将燃料从供水路径供给的水（惰性物质）中喷射。

9. 发明授权

US07043957B2 Element impedance detection apparatus and method for oxygen sensor 有权
标题翻译：氧传感器元件阻抗检测装置及方法
公开(公告)号：US07043957B2
公开(公告)日：2006-05-16
申请号：US10703451
申请日：2003-11-10
申请人： Kazutaka Hattori
发明人： Kazutaka Hattori
IPC分类号： G01N21/00
CPC分类号： G01N27/4175
摘要： An element impedance detection apparatus for an oxygen sensor is provided with a first switching device, a second resistor, first resistor, and a first condenser for application of a sweep voltage to the oxygen sensor. The first switching device is switched to ON and the sweep voltage applied; a sensor current I that flows in the oxygen sensor along with application of the sweep voltage is then detected. Element impedance is calculated based on the sweep voltage and the sensor current. The second resistor, the first resistor and the first condenser are connected to the oxygen sensor such that a time constant of the sweep voltage increases as the element impedance becomes larger.
摘要翻译：用于氧传感器的元件阻抗检测装置设置有用于向氧传感器施加扫描电压的第一开关装置，第二电阻器，第一电阻器和第一电容器。第一个开关器件切换到ON，并施加扫描电压; 然后检测到随着施加扫描电压在氧传感器中流动的传感器电流I. 基于扫描电压和传感器电流计算元件阻抗。第二电阻器，第一电阻器和第一电容器连接到氧传感器，使得扫描电压的时间常数随着元件阻抗变大而增加。

10. 发明授权

US07909970B2 Controller for gas concentration sensor 有权
标题翻译：气体浓度传感器控制器
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。

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