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公开(公告)号：US09249712B2
公开(公告)日：2016-02-02
申请号：US13158192
申请日：2011-06-10
CPC分类号： F01N11/00 , F01N2560/025 , F02D41/1403 , F02D41/1441 , F02D41/1482 , F02D41/149 , F02D41/2454 , Y02T10/47
摘要： An air-fuel ratio control system for an internal combustion engine, which, at the resumption of air-fuel ratio feedback control, is capable of setting the initial value of an integral term of the feedback control to a value properly learned in preceding feedback control, thereby enabling improvement of control accuracy. To feedback-control the output value of an O2 sensor to a target value, a target air-fuel ratio is calculated. During the feedback control, when it is determined that a predetermined condition in which it is estimated that exhaust gas air-fuel ratio upstream of the catalyst is excellently reflected on an exhaust gas air-fuel ratio at a location midway or downstream of the catalyst is satisfied, an adaptive law input calculated immediately before interruption of the feedback control is updated and stored as the initial value of an integral term for the following execution of the feedback control.
摘要翻译： 一种用于内燃机的空燃比控制系统，其在恢复空燃比反馈控制时能够将反馈控制的积分项的初始值设定为在先前的反馈控制中正确学习的值 从而能够提高控制精度。 为了将O2传感器的输出值反馈到目标值，计算目标空燃比。 在反馈控制期间，当确定在催化剂上游或下游位置处的排气气体排放气体空气燃料比优异地反映催化剂上游的排气空燃比的预定条件是， 满足于在反馈控制中断之前计算的自适应法则输入被更新并存储为用于随后执行反馈控制的积分项的初始值。
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12.发明申请AIR-FUEL RATIO CONTROL APPARATUS AND AIR-FUEL RATIO CONTROL METHOD FOR INTERNAL-COMBUSTION ENGINE 有权用于内燃机的空燃比比控制装置和空燃比控制方法公开(公告)号：US20110320106A1
公开(公告)日：2011-12-29
申请号：US13108014
申请日：2011-05-16
CPC分类号： F02D41/1402 , F01N3/101 , F02D41/1403 , F02D41/1441 , F02D41/1454 , F02D2041/1409 , F02D2200/021 , Y02T10/22
摘要： An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combustion engine and is configured to detect an air-fuel ratio in exhaust gas. The control-input calculator is configured to calculate a control input in accordance with an output value of the air-fuel-ratio sensor. The air-fuel-ratio controller is configured to perform a feedback control using the control input such that the output value of the air-fuel-ratio sensor reaches a target value. The gain calculator is configured to calculate a gain in accordance with the output value when the output value is leaner than the target value. The gain is to be used in calculating the control input.
摘要翻译： 用于内燃机的空燃比控制装置包括空燃比传感器，控制输入计算器，空燃比控制器和增益计算器。 所述空燃比传感器配置在所述内燃机的排气通路中，并且能够检测废气中的空燃比。 控制输入计算器被配置为根据空燃比传感器的输出值来计算控制输入。 空燃比控制器被配置为使用控制输入执行反馈控制，使得空燃比传感器的输出值达到目标值。 增益计算器被配置为当输出值比目标值更稀的时候根据输出值来计算增益。 增益用于计算控制输入。
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公开(公告)号：US20110314795A1
公开(公告)日：2011-12-29
申请号：US13158192
申请日：2011-06-10
CPC分类号： F01N11/00 , F01N2560/025 , F02D41/1403 , F02D41/1441 , F02D41/1482 , F02D41/149 , F02D41/2454 , Y02T10/47
摘要： An air-fuel ratio control system for an internal combustion engine, which, at the resumption of air-fuel ratio feedback control, is capable of setting the initial value of an integral term of the feedback control to a value properly learned in preceding feedback control, thereby enabling improvement of control accuracy. To feedback-control the output value of an O2 sensor to a target value, a target air-fuel ratio is calculated. During the feedback control, when it is determined that a predetermined condition in which it is estimated that exhaust gas air-fuel ratio upstream of the catalyst is excellently reflected on an exhaust gas air-fuel ratio at a location midway or downstream of the catalyst is satisfied, an adaptive law input calculated immediately before interruption of the feedback control is updated and stored as the initial value of an integral term for the following execution of the feedback control.
摘要翻译： 一种用于内燃机的空燃比控制系统，其在恢复空燃比反馈控制时能够将反馈控制的积分项的初始值设定为在先前的反馈控制中正确学习的值 从而能够提高控制精度。 为了将O2传感器的输出值反馈到目标值，计算目标空燃比。 在反馈控制期间，当确定在催化剂上游或下游位置处的排气气体排放气体空气燃料比优异地反映催化剂上游的排气空燃比的预定条件是， 满足于在反馈控制中断之前计算的自适应法则输入被更新并存储为用于随后执行反馈控制的积分项的初始值。
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14.发明授权Air-fuel ratio control apparatus and air-fuel ratio control method for internal-combustion engine 有权用于内燃机的空燃比控制装置和空燃比控制方法公开(公告)号：US08694227B2
公开(公告)日：2014-04-08
申请号：US13108014
申请日：2011-05-16
CPC分类号： F02D41/1402 , F01N3/101 , F02D41/1403 , F02D41/1441 , F02D41/1454 , F02D2041/1409 , F02D2200/021 , Y02T10/22
摘要： An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combustion engine and is configured to detect an air-fuel ratio in exhaust gas. The control-input calculator is configured to calculate a control input in accordance with an output value of the air-fuel-ratio sensor. The air-fuel-ratio controller is configured to perform a feedback control using the control input such that the output value of the air-fuel-ratio sensor reaches a target value. The gain calculator is configured to calculate a gain in accordance with the output value when the output value is leaner than the target value. The gain is to be used in calculating the control input.
摘要翻译： 用于内燃机的空燃比控制装置包括空燃比传感器，控制输入计算器，空燃比控制器和增益计算器。 所述空燃比传感器配置在所述内燃机的排气通路中，并且能够检测废气中的空燃比。 控制输入计算器被配置为根据空燃比传感器的输出值来计算控制输入。 空燃比控制器被配置为使用控制输入执行反馈控制，使得空燃比传感器的输出值达到目标值。 增益计算器被配置为当输出值比目标值更稀的时候根据输出值来计算增益。 增益用于计算控制输入。
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公开(公告)号：US20120101641A1
公开(公告)日：2012-04-26
申请号：US13239787
申请日：2011-09-22
CPC分类号： G05B13/04 , F02D41/1401 , F02D2041/141
摘要： A plant controller includes a feedback controller configured to calculate a control input provided to a plant so that a control output of the plant matches a target value. The feedback controller includes a controller transfer function that is a transfer function of the feedback controller. The controller transfer function is expressed by a product of an inverse transfer function of a transfer function of a control target model obtained by modeling the plant and a disturbance sensitivity correlation function defined using a sensitivity function. The sensitivity function indicates sensitivity of a disturbance to be applied to the plant with respect to the control output. The sensitivity function is defined by using a response characteristic parameter that indicates a response characteristic of the plant.
摘要翻译： 工厂控制器包括反馈控制器，其被配置为计算提供给工厂的控制输入，使得设备的控制输出与目标值匹配。 反馈控制器包括作为反馈控制器的传递函数的控制器传递函数。 控制器传递函数由通过对工厂进行建模获得的控制目标模型的传递函数的反向传递函数和使用灵敏度函数定义的干扰敏感度相关函数的乘积表示。 灵敏度功能表示相对于控制输出对工厂施加扰动的灵敏度。 灵敏度函数通过使用指示工厂的响应特性的响应特性参数来定义。
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公开(公告)号：US20120192634A1
公开(公告)日：2012-08-02
申请号：US13312998
申请日：2011-12-07
申请人： Takeshi AOKI , Atsuhiro Miyauchi , Michinori Tani , Hiroyuki Ando
发明人： Takeshi AOKI , Atsuhiro Miyauchi , Michinori Tani , Hiroyuki Ando
IPC分类号： G01M15/10
CPC分类号： G01M15/104
摘要： An abnormality determination device for an air-fuel ratio sensor includes a differential value calculator and an abnormality determiner. The differential value calculator is configured to calculate a differential value of an output value of the air-fuel ratio sensor which is configured to detect an air-fuel ratio of exhaust gas. The abnormality determiner is configured to determine abnormality of the air-fuel ratio sensor based on a result of comparison between a reference output value of the air-fuel ratio sensor and a predetermined threshold. The reference output value is obtained by the air-fuel ratio sensor when the differential value calculated by the differential value calculator becomes a predetermined value.
摘要翻译： 空燃比传感器的异常判定装置具有差分值运算部和异常判定部。 差分值计算器被配置为计算被配置为检测排气的空燃比的空燃比传感器的输出值的差分值。 异常判定部基于空燃比传感器的基准输出值与规定的阈值的比较结果来判断空燃比传感器的异常。 当由差分值计算器计算的微分值变为预定值时，由空燃比传感器获得基准输出值。
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公开(公告)号：US08794056B2
公开(公告)日：2014-08-05
申请号：US13312998
申请日：2011-12-07
申请人： Takeshi Aoki , Atsuhiro Miyauchi , Michinori Tani , Hiroyuki Ando
发明人： Takeshi Aoki , Atsuhiro Miyauchi , Michinori Tani , Hiroyuki Ando
IPC分类号： G01M15/10
CPC分类号： G01M15/104
摘要： An abnormality determination device for an air-fuel ratio sensor includes a differential value calculator and an abnormality determiner. The differential value calculator is configured to calculate a differential value of an output value of the air-fuel ratio sensor which is configured to detect an air-fuel ratio of exhaust gas. The abnormality determiner is configured to determine abnormality of the air-fuel ratio sensor based on a result of comparison between a reference output value of the air-fuel ratio sensor and a predetermined threshold. The reference output value is obtained by the air-fuel ratio sensor when the differential value calculated by the differential value calculator becomes a predetermined value.
摘要翻译： 空燃比传感器的异常判定装置具有差分值运算部和异常判定部。 差分值计算器被配置为计算被配置为检测排气的空燃比的空燃比传感器的输出值的差分值。 异常判定部基于空燃比传感器的基准输出值与规定的阈值的比较结果来判断空燃比传感器的异常。 当由差分值计算器计算的微分值变为预定值时，由空燃比传感器获得基准输出值。
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18.发明授权Failure detecting device for supercharging-pressure control means in supercharging device of engine 有权发动机增压装置中增压压力控制装置故障检测装置公开(公告)号：US07500363B2
公开(公告)日：2009-03-10
申请号：US11878604
申请日：2007-07-25
IPC分类号： F02B33/00
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。
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公开(公告)号：US20050123455A1
公开(公告)日：2005-06-09
申请号：US10994301
申请日：2004-11-23
CPC分类号： A61L9/015 , Y02A50/2347
摘要： An ozone purifier for a vehicle is configured of an ozone purification catalyst mounted on the vehicle; a first ozone concentration detection mechanism for detecting an ozone concentration in air before its passing the ozone purification catalyst; a second ozone concentration detection mechanism for detecting an ozone concentration in air after its passing the ozone purification catalyst; a deterioration detection mechanism for using output values of the first and second ozone concentration detection mechanisms and detecting deterioration of the ozone purification catalyst; and furthermore a mechanism for calibrating the output values of the first and second ozone concentration detection mechanisms, and when detecting the deterioration of the ozone purification catalyst, the purifier calibrates the output values of the first and second ozone concentration detection mechanisms.
摘要翻译： 用于车辆的臭氧净化器由安装在车辆上的臭氧净化催化剂构成; 第一臭氧浓度检测机构，用于在通过臭氧净化催化剂之前检测空气中的臭氧浓度; 第二臭氧浓度检测机构，用于在通过臭氧净化催化剂之后检测空气中的臭氧浓度; 劣化检测机构，用于使用第一和第二臭氧浓度检测机构的输出值，并检测臭氧净化催化剂的劣化; 以及用于校准第一和第二臭氧浓度检测机构的输出值的机构，并且当检测到臭氧净化催化剂的劣化时，净化器校准第一和第二臭氧浓度检测机构的输出值。
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20.发明申请公开(公告)号：US20080022968A1
公开(公告)日：2008-01-31
申请号：US11878117
申请日：2007-07-20
IPC分类号： F02D41/00
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。
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