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公开(公告)号：US08201397B2
公开(公告)日：2012-06-19
申请号：US12470917
申请日：2009-05-22
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N9/00 , F01N13/009 , F01N2560/06 , F01N2570/18 , F01N2610/02 , F01N2900/1402 , F01N2900/1602 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU controls urea solution addition quantity of the urea solution addition valve based on ammonia adsorption quantity to the SCR catalyst. The ECU calculates the ammonia adsorption quantity in the SCR catalyst based on time-series data of an ammonia balance between ammonia supply to the SCR catalyst accompanying the urea solution addition of the urea solution addition valve and ammonia consumption in the SCR catalyst. The ECU calculates NOx quantity introduced into the SCR catalyst or a parameter correlated with the NOx quantity and performs initialization of the ammonia adsorption quantity at timing decided based on a result of the calculation.
摘要翻译： 在发动机的排气管中设置SCR催化剂，在排气管中的SCR催化剂的上游设置有尿素溶液添加阀。 ECU根据对SCR催化剂的氨吸附量控制尿素溶液添加阀的尿素溶液添加量。 ECU根据伴随尿素溶液添加阀的尿素溶液添加的氨催化剂的氨供应量与SCR催化剂中的氨消耗量之间的氨余量的时间序列数据，计算SCR催化剂中的氨的吸附量。 ECU计算引入SCR催化剂的NOx量或与NOx量相关的参数，并且在基于计算结果确定的定时进行氨吸附量的初始化。
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公开(公告)号：US20090288396A1
公开(公告)日：2009-11-26
申请号：US12465958
申请日：2009-05-14
CPC分类号： F01N3/208 , F01N13/009 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1602 , F01N2900/1621 , F01N2900/1622 , Y02T10/24
摘要： An exhaust emission control device is used for an engine and is applied to an exhaust gas purifying system. The system has an NOx catalyst disposed in an exhaust passage of the engine to promote selective purification of NOx in exhaust gas performed by ammonia, which is a reducing agent for reducing NOx, and a reducing agent adding device for adding the reducing agent to an upstream side of the catalyst in a flow direction of exhaust gas. The device includes a catalyst temperature detecting device for detecting temperature of the catalyst, a reaction ratio calculating device for calculating a reaction ratio, which is a ratio of a reaction amount of ammonia to a reaction amount of NOx in the catalyst, based on the temperature of the catalyst, and an ammonia consumed amount calculating device for calculating a consumed amount of ammonia in the catalyst based on the reaction ratio
摘要翻译： 废气排放控制装置用于发动机，并被应用于废气净化系统。 该系统具有设置在发动机的排气通道中的NOx催化剂，以促进由作为还原NOx的还原剂的氨进行的废气中的NOx的选择性净化，以及用于将还原剂添加到上游的还原剂添加装置 在废气的流动方向上的催化剂侧。 该装置包括用于检测催化剂的温度的催化剂温度检测装置，用于计算反应比的反应比计算装置，其是氨的反应量与催化剂中的NOx的反应量的比例，基于温度 以及氨消耗量计算装置，用于根据反应比计算催化剂中氨的消耗量
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公开(公告)号：US20090288397A1
公开(公告)日：2009-11-26
申请号：US12470917
申请日：2009-05-22
CPC分类号： F01N3/208 , F01N9/00 , F01N13/009 , F01N2560/06 , F01N2570/18 , F01N2610/02 , F01N2900/1402 , F01N2900/1602 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU controls urea solution addition quantity of the urea solution addition valve based on ammonia adsorption quantity to the SCR catalyst. The ECU calculates the ammonia adsorption quantity in the SCR catalyst based on time-series data of an ammonia balance between ammonia supply to the SCR catalyst accompanying the urea solution addition of the urea solution addition valve and ammonia consumption in the SCR catalyst. The ECU calculates NOx quantity introduced into the SCR catalyst or a parameter correlated with the NOx quantity and performs initialization of the ammonia adsorption quantity at timing decided based on a result of the calculation.
摘要翻译： 在发动机的排气管中设置SCR催化剂，在排气管中的SCR催化剂的上游设置有尿素溶液添加阀。 ECU根据对SCR催化剂的氨吸附量控制尿素溶液添加阀的尿素溶液添加量。 ECU根据伴随尿素溶液添加阀的尿素溶液添加的氨催化剂的氨供应量与SCR催化剂中的氨消耗量之间的氨余量的时间序列数据，计算SCR催化剂中的氨的吸附量。 ECU计算引入SCR催化剂的NOx量或与NOx量相关的参数，并且在基于计算结果确定的定时进行氨吸附量的初始化。
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公开(公告)号：US08418438B2
公开(公告)日：2013-04-16
申请号：US12758999
申请日：2010-04-13
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N11/00 , F01N2560/026 , F01N2570/10 , F01N2610/02 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purifying system for a diesel engine has an ECU, a passage of exhaust gas, a unit having SCR catalyst, a NOx sensor placed at a downstream side of the unit, and a urea water adding valve placed at an upstream side of the unit. The SCR catalyst in the unit selectively adsorbs ammonia, and selectively purifies NOx contained in an exhaust gas emitted from the diesel engine by the adsorbed ammonia. The ECU changes the urea water adding amount, and performs abnormality diagnosis based on the detection result of the NOx sensor while changing an adding amount of the urea water. The ECU uses a first condition to indicate the presence of an excess NOx amount in the exhaust gas, and a second condition to indicate there is no error cause by the ammonia adsorption on the SCR catalyst.
摘要翻译： 用于柴油发动机的排气净化系统具有ECU，废气通道，具有SCR催化剂的单元，位于该单元下游侧的NOx传感器，以及放置在该单元的上游侧的尿素水添加阀 单元。 该单元中的SCR催化剂选择性地吸附氨，并且通过吸附的氨选择性地净化从柴油发动机排放的废气中所含的NOx。 ECU改变尿素水添加量，并且在改变尿素水的添加量的同时，基于NOx传感器的检测结果进行异常诊断。 ECU使用第一条件来指示废气中存在过量的NOx量，并且指示不存在SCR催化剂上的氨吸附引起的误差的第二条件。
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公开(公告)号：US08209966B2
公开(公告)日：2012-07-03
申请号：US12465958
申请日：2009-05-14
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N13/009 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1602 , F01N2900/1621 , F01N2900/1622 , Y02T10/24
摘要： An exhaust emission control device is used for an engine and is applied to an exhaust gas purifying system. The system has an NOx catalyst disposed in an exhaust passage of the engine to promote selective purification of NOx in exhaust gas performed by ammonia, which is a reducing agent for reducing NOx, and a reducing agent adding device for adding the reducing agent to an upstream side of the catalyst in a flow direction of exhaust gas. The device includes a catalyst temperature detecting device for detecting temperature of the catalyst, a reaction ratio calculating device for calculating a reaction ratio, which is a ratio of a reaction amount of ammonia to a reaction amount of NOx in the catalyst, based on the temperature of the catalyst, and an ammonia consumed amount calculating device for calculating a consumed amount of ammonia in the catalyst based on the reaction ratio.
摘要翻译： 废气排放控制装置用于发动机，并被应用于废气净化系统。 该系统具有设置在发动机的排气通道中的NOx催化剂，以促进由作为还原NOx的还原剂的氨进行的废气中的NOx的选择性净化，以及用于将还原剂添加到上游的还原剂添加装置 在废气的流动方向上的催化剂侧。 该装置包括用于检测催化剂的温度的催化剂温度检测装置，用于计算反应比的反应比计算装置，其是氨的反应量与催化剂中的NOx的反应量的比例，基于温度 以及氨消耗量计算装置，用于根据反应比计算催化剂中氨的消耗量。
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公开(公告)号：US08176730B2
公开(公告)日：2012-05-15
申请号：US12476563
申请日：2009-06-02
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N2560/026 , F01N2560/06 , F01N2610/02 , Y02T10/24
摘要： An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU calculates ammonia adsorption quantity of the SCR catalyst and controls urea solution addition quantity, which is added by the urea solution addition valve, based on the ammonia adsorption quantity. The ECU obtains temperature of the SCR catalyst or temperature information correlated with the temperature through measurement or estimation. The ECU switches an execution mode of the urea solution addition control based on the catalyst temperature or the temperature information. Thus, reducing agent addition control can be performed suitably and eventually NOx purification in a NOx catalyst (i.e., SCR catalyst) can be performed suitably.
摘要翻译： 在发动机的排气管中设置SCR催化剂，在排气管中的SCR催化剂的上游设置有尿素溶液添加阀。 ECU计算SCR催化剂的氨吸附量，并根据氨吸附量控制尿素溶液添加阀添加的尿素溶液添加量。 ECU通过测量或估计获得SCR催化剂的温度或与温度相关的温度信息。 ECU根据催化剂温度或温度信息切换尿素溶液添加控制的执行模式。 因此，可以适当地进行还原剂添加控制，并且可以适当地进行NOx催化剂（即SCR催化剂）的NOx净化。
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公开(公告)号：US07696746B2
公开(公告)日：2010-04-13
申请号：US11647568
申请日：2006-12-29
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译： 涡轮增压器的涡轮机叶轮具有涡轮叶片。 涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。 涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。 线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。 检测器检测当线圈的倾斜部分经过附近时发生的电感变化。
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8.发明授权公开(公告)号：US07560919B2
公开(公告)日：2009-07-14
申请号：US11529298
申请日：2006-09-29
申请人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
发明人： Shinji Hatanaka , Kenji Takeda , Tsutomu Nakamura , Osamu Shimomura , Takashi Kawashima , Koichiro Matsumoto
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle detecting device that detects a rotation angle of a rotating object includes a permanent magnet that generates magnetic fields in response to rotation of the rotating object, a magnetic sensor, a first yoke and a second yoke. The magnetic sensor includes a pair of close integrated magnetic sensing elements, such as hall elements, disposed at a position around the permanent magnet so that one of the sensing elements senses magnetic field at a phase different from the other. The first yoke and the second yoke forms two magnetic paths crossing each other at the magnetic sensor.
摘要翻译： 检测旋转物体的旋转角度的旋转角度检测装置包括响应于旋转物体，磁性传感器，第一磁轭和第二磁轭的旋转而产生磁场的永久磁铁。 磁传感器包括一对紧密集成的磁感应元件，诸如霍尔元件，设置在永磁体周围的位置，使得感测元件中的一个感测不同于另一个的相位的磁场。 第一磁轭和第二磁轭在磁传感器处形成彼此相交的两个磁路。
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公开(公告)号：US20070268014A1
公开(公告)日：2007-11-22
申请号：US11647568
申请日：2006-12-29
IPC分类号： G01B7/00
CPC分类号： G01D5/202 , F02B39/16 , F02B2039/168 , G01P3/488 , G01P3/49
摘要： A turbine wheel of a turbocharger has a turbine blade. The turbine blade has a fin shape of which width in the rotation direction of the turbocharger is narrow, and is projected from the base portion of the turbine wheel. An inclined part of the turbine blade is inclined with respect to the rotation direction of the turbocharger. A coil is disposed so that the inclined part passes nearby as the turbine wheel rotates in a posture that an end in the center axis direction is directed toward the turbocharger. A detector detects a change in inductance, which occurs when the inclined part of the coil passes nearby.
摘要翻译： 涡轮增压器的涡轮机叶轮具有涡轮叶片。 涡轮叶片具有在涡轮增压器的旋转方向上的宽度窄的翅片形状，并且从涡轮机叶轮的基部突出。 涡轮叶片的倾斜部分相对于涡轮增压器的旋转方向倾斜。 线圈被设置成使得倾斜部分随着涡轮机叶轮以中心轴线方向的端部朝向涡轮增压器的姿态旋转而经过附近。 检测器检测当线圈的倾斜部分经过附近时发生的电感变化。
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10.发明授权公开(公告)号：US07071683B2
公开(公告)日：2006-07-04
申请号：US10670214
申请日：2003-09-26
申请人： Osamu Shimomura , Tsutomu Nakamura , Kenji Tak da , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
发明人： Osamu Shimomura , Tsutomu Nakamura , Kenji Tak da , Yoshiyuki Kono , Takashi Kawashima , Takashi Hamaoka
IPC分类号： G01B7/30
CPC分类号： G01D5/145
摘要： A rotation angle sensing device for detecting a relative rotation angle between a rotor and a stator includes main magnets, fixed in the rotor, and hole ICs, fixed in the stator. The hole ICs detect magnetic flux of the main magnets , and the relative rotation angle therebetween is detected. A supportive magnet is disposed between the hole ICs so as to offset the magnetic flux of the main magnets. Accordingly, a rotation angle in which the magnetic flux density detected in the hole ICs becomes 0 [mT] can be changed by the supportive magnet. Therefore, a 0° position of the rotation angle can be set to the rotation angle in which the magnetic flux density is detected as 0 [mT], and moreover the detectable range of the rotation angle can be enlarged to be more than 90°.
摘要翻译： 用于检测转子和定子之间的相对旋转角度的旋转角度检测装置包括固定在转子中的主磁体和固定在定子中的孔IC。 孔IC检测主磁体的磁通量，并检测其间的相对旋转角度。 支撑磁铁设置在孔IC之间，以抵消主磁体的磁通量。 因此，通过支撑磁铁可以改变在孔IC中检测到的磁通密度变为0 [mT]的旋转角度。 因此，可以将旋转角度的0°位置设定为检测磁通密度为0 [mT]的旋转角度，此外，可以将旋转角度的可检测范围扩大至大于90°。
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