Apparatus for controlling air-fuel ratio of internal-combustion engine
    1.
    发明授权
    Apparatus for controlling air-fuel ratio of internal-combustion engine 有权
    用于控制内燃机空燃比的装置

    公开(公告)号:US08983754B2

    公开(公告)日:2015-03-17

    申请号:US13473593

    申请日:2012-05-17

    摘要: An apparatus for controlling an air-fuel ratio of an internal-combustion engine includes an air-fuel ratio detector, a fluctuation signal generating device, an air-fuel ratio fluctuation device, a 0.5th-order frequency component strength calculator, a fluctuation frequency component strength calculator, a reference component strength calculator, and an imbalance fault determining device. The reference component strength calculator is configured to calculate strength of a reference component in accordance with strength of a first frequency component and strength of a second frequency component. The imbalance fault determining device is configured to make a determination of an imbalance fault in which air-fuel ratios of a plurality of cylinders vary beyond a tolerance limit on a basis of a relative relationship between strength of the 0.5th-order frequency component and the strength of the reference component.

    摘要翻译: 用于控制内燃机的空燃比的装置包括空燃比检测器,变动信号发生装置,空燃比变动装置,0.5次频率分量强度计算器,波动频率 分量强度计算器,参考分量强度计算器和不平衡故障确定装置。 参考分量强度计算器被配置为根据第一频率分量的强度和第二频率分量的强度来计算参考分量的强度。 不平衡故障确定装置被配置为基于0.5次频率分量的强度与第5级频率分量的相对关系来确定多个气缸的空燃比变化超过公差极限的不平衡故障 参考组件的强度。

    AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的空燃比比控制系统

    公开(公告)号:US20130047969A1

    公开(公告)日:2013-02-28

    申请号:US13527408

    申请日:2012-06-19

    IPC分类号: F02D41/00

    摘要: An air-fuel ratio control system for an internal combustion engine has a perturbation control which oscillates the air-fuel ratio with a first frequency. A first difference signal is generated indicative of a difference between a present value and a first past value from an air-fuel ratio sensor detected at a timing of a first specific period which is set to reduce a specific frequency component corresponding to a specific frequency different from the first frequency. A first frequency component is extracted. A second difference signal is generated indicative of a difference between a present value and a second past value detected at a timing of a second specific period which is set to reduce the first frequency component. The specific frequency component is extracted. A failure of the control system is determined by a relationship between intensities of the first frequency component and the specific frequency component.

    摘要翻译: 用于内燃机的空燃比控制系统具有以第一频率振荡空燃比的扰动控制。 产生第一差分信号,其指示在第一特定周期的定时检测到的空燃比传感器的当前值和第一过去值之间的差,其被设置为减小对应于特定频率不同的特定频率分量 从第一个频率。 提取第一频率分量。 产生指示在设定为减少第一频率分量的第二特定周期的定时检测到的当前值和第二过去值之间的差的第二差分信号。 提取特定频率分量。 控制系统的故障由第一频率分量和特定频率分量的强度之间的关系确定。

    Air-fuel ratio control system for internal combustion engine
    3.
    发明授权
    Air-fuel ratio control system for internal combustion engine 有权
    内燃机空燃比控制系统

    公开(公告)号:US09057337B2

    公开(公告)日:2015-06-16

    申请号:US13527408

    申请日:2012-06-19

    摘要: An air-fuel ratio control system for an internal combustion engine has a perturbation control which oscillates the air-fuel ratio with a first frequency. A first difference signal is generated indicative of a difference between a present value and a first past value from an air-fuel ratio sensor detected at a timing of a first specific period which is set to reduce a specific frequency component corresponding to a specific frequency different from the first frequency. A first frequency component is extracted. A second difference signal is generated indicative of a difference between a present value and a second past value detected at a timing of a second specific period which is set to reduce the first frequency component. The specific frequency component is extracted. A failure of the control system is determined by a relationship between intensities of the first frequency component and the specific frequency component.

    摘要翻译: 用于内燃机的空燃比控制系统具有以第一频率振荡空燃比的扰动控制。 产生第一差分信号,其指示在第一特定周期的定时检测到的空燃比传感器的当前值和第一过去值之间的差,其被设置为减小对应于特定频率不同的特定频率分量 从第一个频率。 提取第一频率分量。 产生指示在设定为减少第一频率分量的第二特定周期的定时检测到的当前值和第二过去值之间的差的第二差分信号。 提取特定频率分量。 控制系统的故障由第一频率分量和特定频率分量的强度之间的关系决定。

    Air-fuel ratio control system for internal combustion engine
    4.
    发明授权
    Air-fuel ratio control system for internal combustion engine 有权
    内燃机空燃比控制系统

    公开(公告)号:US08726637B2

    公开(公告)日:2014-05-20

    申请号:US13565291

    申请日:2012-08-02

    IPC分类号: F01N3/08 F02D41/00

    摘要: An oscillation signal is generated to oscillate the air-fuel ratio with a set frequency which is different from a 0.5th-order frequency (half of the frequency corresponding to a rotational speed of the engine). Air-fuel ratio perturbation control is performed to oscillate the air-fuel ratio according to the oscillation signal. An intensity of the 0.5th-order frequency component and the set frequency component contained in the detected air-fuel ratio signal are calculated. A determination parameter applied to determining an imbalance degree of air-fuel ratios corresponding to the plurality of cylinders is calculated according to the two intensities and determines an imbalance failure that the imbalance degree of the air-fuel ratios exceeds an acceptable limit. A predicted imbalance value, indicative of a predicted value of the imbalance degree, is calculated, and an amplitude of the oscillation signal is set according to the predicted imbalance value.

    摘要翻译: 产生振荡信号,以与不同于0.5次频率(对应于发动机的转速的一半频率)的设定频率来振荡空燃比。 执行空燃比扰动控制,以根据振荡信号使空燃比振荡。 计算包含在检测的空燃比信号中的0.5次频率分量和设定频率分量的强度。 根据两个强度计算用于确定对应于多个气缸的空燃比的不平衡度的确定参数,并且确定空燃比的不平衡度超过可接受极限的失衡失效。 计算表示不平衡度的预测值的预测不平衡值,根据预测的不平衡值设定振动信号的振幅。

    AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    AIR-FUEL RATIO CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的空燃比比控制系统

    公开(公告)号:US20130061581A1

    公开(公告)日:2013-03-14

    申请号:US13565291

    申请日:2012-08-02

    IPC分类号: F02D41/00 F01N3/08

    摘要: An oscillation signal is generated to oscillate the air-fuel ratio with a set frequency which is different from a 0.5th-order frequency (half of the frequency corresponding to a rotational speed of the engine). Air-fuel ratio perturbation control is performed to oscillate the air-fuel ratio according to the oscillation signal. An intensity of the 0.5th-order frequency component and the set frequency component contained in the detected air-fuel ratio signal are calculated. A determination parameter applied to determining an imbalance degree of air-fuel ratios corresponding to the plurality of cylinders is calculated according to the two intensities and determines an imbalance failure that the imbalance degree of the air-fuel ratios exceeds an acceptable limit. A predicted imbalance value, indicative of a predicted value of the imbalance degree, is calculated, and an amplitude of the oscillation signal is set according to the predicted imbalance value.

    摘要翻译: 产生振荡信号,以与不同于0.5次频率(对应于发动机的转速的一半频率)的设定频率来振荡空燃比。 执行空燃比扰动控制,以根据振荡信号使空燃比振荡。 计算包含在检测的空燃比信号中的0.5次频率分量和设定频率分量的强度。 根据两个强度计算用于确定对应于多个气缸的空燃比的不平衡度的确定参数,并且确定空燃比的不平衡度超过可接受极限的失衡失效。 计算表示不平衡度的预测值的预测不平衡值,根据预测的不平衡值设定振动信号的振幅。

    Abnormality determination device for air-fuel ratio sensor
    7.
    发明授权
    Abnormality determination device for air-fuel ratio sensor 有权
    空燃比传感器异常判定装置

    公开(公告)号:US08794056B2

    公开(公告)日:2014-08-05

    申请号:US13312998

    申请日:2011-12-07

    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。

    Display device and electronic book
    8.
    发明授权
    Display device and electronic book 有权
    显示设备和电子书

    公开(公告)号:US09348165B2

    公开(公告)日:2016-05-24

    申请号:US13085259

    申请日:2011-04-12

    摘要: It is an object to provide a display device exhibiting high visibility and having a touch recognition function. The display device includes a display portion and a sensor portion. The display portion includes a first liquid crystal element including a polymer-scattered liquid crystal. The sensor portion includes a light-receiving element and a second liquid crystal element including a polymer-dispersed liquid crystal provided over the light-receiving element. The first liquid crystal element and the second liquid crystal element are driven independently from each other. The light-receiving element receives light transmitting through the second liquid crystal element.

    摘要翻译: 本发明的目的是提供具有高可见度并具有触摸识别功能的显示装置。 显示装置包括显示部分和传感器部分。 显示部分包括包含聚合物散射液晶的第一液晶元件。 传感器部分包括光接收元件和设置在光接收元件上的聚合物分散液晶的第二液晶元件。 第一液晶元件和第二液晶元件彼此独立地驱动。 光接收元件接收透过第二液晶元件的光。

    Electric motor drive control apparatus
    10.
    发明授权
    Electric motor drive control apparatus 有权
    电动机驱动控制装置

    公开(公告)号:US08339076B2

    公开(公告)日:2012-12-25

    申请号:US12662882

    申请日:2010-05-10

    IPC分类号: H02P6/16

    CPC分类号: H02P6/16 G01D5/24452 H02P6/15

    摘要: An electric motor drive control apparatus includes a detection angle obtaining section that obtains the detection angle of the resolver; a correction information storage section that stores correction information for correcting the detection angle, in association with a modulation ratio that is a ratio of an effective value of a fundamental wave component of the AC voltage to the system voltage; and a detection angle correcting section that obtains the correction information from the correction information storage section, based on the modulation ratio at the time the detection angle obtaining section obtains the detection.

    摘要翻译: 一种电动机驱动控制装置,包括获取旋转变压器的检测角度的检测角取得部, 校正信息存储部分,其与作为交流电压的基波分量的有效值与系统电压的比率的调制比相关联地存储用于校正检测角度的校正信息; 以及检测角度校正部,其基于检测角度获取部获取检测时的调制率,从校正信息存储部获取校正信息。