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111 条记录 (耗时 0.039 秒)

    Air-fuel ratio feedback control apparatus
    34.
    发明授权
    Air-fuel ratio feedback control apparatus 有权
    空燃比反馈控制装置

    公开(公告)号：US06739122B2

    公开(公告)日：2004-05-25

    申请号：US10196154

    申请日：2002-07-17

    申请人： Shinichi Kitajima ,  Asao Ukai ,  Shigetaka Kuroda ,  Futoshi Nishioka

    发明人： Shinichi Kitajima ,  Asao Ukai ,  Shigetaka Kuroda ,  Futoshi Nishioka

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N3/0814 ,  F01N11/007 ,  F01N2550/03 ,  F02D41/1456 ,  F02D41/1475 ,  F02D2041/1422 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/47

    摘要： The present invention provides an air-fuel ratio feedback control apparatus for an internal-combustion engine. The apparatus includes an air-fuel ratio detector that is disposed in an exhaust system of the engine so as to detect an air-fuel ratio of exhaust gas, NOx purifier for purifying NOx contained in the exhaust gas during a lean operation and feedback controller for making a feedback control upon an air-fuel ratio of air-fuel mixture to be supplied to the engine based on an output of the air-fuel ratio detector. A diagnostic system diagnoses the NOx purifier based on an output of an O2 sensor disposed downstream of the NOx purifier when the air-fuel ratio of the air-fuel mixture to be supplied to the engine has been changed from lean to rich and gain changer for making a feedback control gain of the feedback controller smaller when the air-fuel ratio is changed from lean to rich.

    摘要翻译： 本发明提供一种用于内燃机的空燃比反馈控制装置。 该装置包括：空燃比检测器，其布置在发动机的排气系统中，以便检测废气的空燃比，用于净化排气中的NOx的净化器，用于净化排气中的NOx;以及反馈控制器， 基于空燃比检测器的输出对发动机供给的空气燃料混合物的空燃比进行反馈控制。 当供给到发动机的空气 - 燃料混合物的空燃比已经从稀释变为富和增益变换器时，诊断系统基于设置在NOx净化器下游的O2传感器的输出来诊断NOx净化器， 当空燃比从浓度变为浓时，反馈控制器的反馈控制增益越小。

    Misfire detecting apparatus for internal combustion engine
    35.
    发明授权
    Misfire detecting apparatus for internal combustion engine 有权

    公开(公告)号：US10378468B2

    公开(公告)日：2019-08-13

    申请号：US13410337

    申请日：2012-03-02

    申请人： Keisuke Minatoya ,  Atsushi Izumiura ,  Tadayoshi Sasaki ,  Shigetaka Kuroda ,  Mahito Shikama

    发明人： Keisuke Minatoya ,  Atsushi Izumiura ,  Tadayoshi Sasaki ,  Shigetaka Kuroda ,  Mahito Shikama

    IPC分类号： G01M15/04 ,  F02D41/14 ,  G01M15/11 ,  F02P5/15

    摘要： A misfire detecting apparatus for an internal combustion engine is provided. The engine has an output shaft connected via a torsion element to an input shaft of a transmission mechanism. A transmission rotational speed parameter indicative of a rotational speed of the input shaft is detected. A modified engine rotational speed parameter is calculated by modifying the detected engine rotational speed parameter based on the transmission rotational speed parameter, an engine rotation moment on the input side of the torsion element, and a transmission rotation moment on the output side of the torsion element. An average change amount of the modified rotational speed parameter, and an inertia speed changing component, are calculated. Further, a corrected rotational speed parameter is calculated by correcting the modified rotational speed parameter according to the average change amount and the inertia speed changing component. A relative speed parameter is calculated based on the corrected rotational speed parameter, and a determination parameter is calculated by integrating the relative speed parameter. The misfire determination is performed based on the determination parameter.

    Exhaust gas purifying apparatus for an internal-combustion engine
    36.
    发明授权
    Exhaust gas purifying apparatus for an internal-combustion engine 失效
    内燃机用废气净化装置

    公开(公告)号：US06698187B2

    公开(公告)日：2004-03-02

    申请号：US10211304

    申请日：2002-08-05

    申请人： Futoshi Nishioka ,  Atsushi Izumiura ,  Shinichi Kitajima ,  Shigetaka Kuroda

    发明人： Futoshi Nishioka ,  Atsushi Izumiura ,  Shinichi Kitajima ,  Shigetaka Kuroda

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N11/00 ,  F01N11/007 ,  F01N13/009 ,  F01N2550/03 ,  F01N2570/14 ,  F01N2900/0422 ,  Y02A50/2344 ,  Y02T10/22 ,  Y02T10/47

    摘要： An exhaust gas purifying apparatus for an internal-combustion engine, including a three-way catalyst, nitrogen oxide purifier that is disposed downstream of the three-way catalyst, an upstream oxygen sensor that is disposed between the three-way catalyst and the nitrogen oxide purifier, and a downstream oxygen sensor that is disposed downstream of the nitrogen oxide purifier. An abnormality determination criterion is set in accordance with the exhaust gas amount of the internal-combustion engine wherein the criterion is equivalent to a time period until the output of the downstream oxygen density sensor is read since the output of the upstream oxygen density sensor is changed to rich after the air-fuel ratio of the exhaust gas was over from lean to rich. Any abnormality of the nitrogen oxide purifier is determined when the output of the downstream oxygen density sensor has been changed to rich before the time period represented by the criterion elapses.

    摘要翻译： 一种用于内燃机的排气净化装置，包括设置在三元催化剂下游的三元催化剂，氮氧化物净化器，设置在三元催化剂和氮氧化物之间的上游氧传感器 净化器和设置在氮氧化物净化器下游的下游氧传感器。 根据内燃机的废气量设定异常判定基准，该内燃机的排气量等于直到下游氧浓度传感器的输出从上游氧浓度传感器的输出变化来读取下游氧浓度传感器的输出 在排气的空燃比从瘦到浓之后变得丰富。 在通过标准所表示的时间段之前，当下游氧浓度传感器的输出变为浓度时，确定氮氧化物净化器的任何异常。

    Abnormality detection system for evaporative fuel control systems of internal combustion engines
    37.
    发明授权
    Abnormality detection system for evaporative fuel control systems of internal combustion engines 失效
    内燃机蒸发燃料控制系统异常检测系统

    公开(公告)号：US5251592A

    公开(公告)日：1993-10-12

    申请号：US831029

    申请日：1992-02-04

    申请人： Yasunari Seki ,  Shigetaka Kuroda ,  Kazutomo Sawamura ,  Masatoshi Udagawa ,  Youichi Iwata ,  Takushi Toda

    发明人： Yasunari Seki ,  Shigetaka Kuroda ,  Kazutomo Sawamura ,  Masatoshi Udagawa ,  Youichi Iwata ,  Takushi Toda

    IPC分类号： F02D41/00 ,  F02M25/08 ,  F02B77/00 ,  F02M33/02

    CPC分类号： F02M25/0809 ,  F02M25/08 ,  F02M2025/0845

    摘要： An abnormality detection system is provided, which detects abnormality in an evaporative fuel control system for an internal combustion engine. A plurality of temperature sensors are arranged in an evaporative fuel storage device at different locations for detecting the temperature of an adsorbent or in the vicinity thereof within the storage device at the different locations. An ECU controls at least one of charging of evaporative fuel from the fuel tank to the storage device and purging of evaporative fuel from the storage device to the intake system of the engine. The ECU determines the presence or absence of an abnormality in the evaporative fuel control system, based upon output values from the temperature sensors assumed when the control system is operative. A state in which adsorption of evaporative fuel generated in the fuel tank to the adsorbent of the storage device has been completed is detected, based upon the amount of a rise in temperature detected while the charging is being effected. The ECU effects the abnormality determination after the state has been detected. The system may be applied to an internal combustion engine in which the air-fuel ratio is controlled by the use of an air-fuel ratio correction coefficient determined in response to an output from an air-fuel ratio sensor.

    摘要翻译： 提供了一种用于检测内燃机的蒸发燃料控制系统中的异常的异常检测系统。 多个温度传感器布置在不同位置处的蒸发燃料存储装置中，用于在不同位置检测存储装置内的吸附剂或其附近的温度。 ECU控制从燃料箱向存储装置的蒸发燃料的充电和从存储装置向发动机的进气系统的蒸发燃料的净化中的至少一种。 ECU根据控制系统运行时假定的温度传感器的输出值，确定蒸发燃料控制系统中是否存在异常。 基于在充电期间检测到的温度上升量，检测在燃料箱中产生的蒸发燃料对存储装置的吸附剂的吸附已经完成的状态。 在检测到状态之后，ECU执行异常判定。 该系统可以应用于通过使用响应于空燃比传感器的输出而确定的空燃比校正系数来控制空燃比的内燃机。

    Control apparatus for on-vehicle electricity storage device
    40.
    发明授权
    Control apparatus for on-vehicle electricity storage device 有权
    车载蓄电装置控制装置

    公开(公告)号：US06927552B2

    公开(公告)日：2005-08-09

    申请号：US10658461

    申请日：2003-09-10

    申请人： Shigetaka Kuroda ,  Kenji Nakano

    发明人： Shigetaka Kuroda ,  Kenji Nakano

    IPC分类号： H02J7/16 ,  H01M10/44 ,  H02J7/14 ,  H02J7/00

    CPC分类号： H02J7/14 ,  Y02T10/7016

    摘要： A control apparatus for an on-vehicle electricity storage device, which enables an appropriate charging of the on-vehicle electricity storage device while preventing degradation of the on-vehicle electricity storage device. The counter value of a high voltage maintaining counter CVB14V and the timer value of a sustain time subtraction timer TACG2 are increased over the period after time t1 in which the inter-terminal voltage VB of the battery is maintained to be greater than the predetermined mode switching threshold voltage #VB14V. The counter value and the timer value decrease over the period from time t2 to time t3. At time t3, the operation mode is switched from a non-charging mode to a charging mode.

    摘要翻译： 一种用于车载蓄电装置的控制装置，其能够在防止车载蓄电装置的劣化的同时对车载蓄电装置进行适当的充电。 高电压保持计数器CVB 14V的计数值和维持时间减法定时器TACG 2的定时器值在电池的端子间电压VB保持为大于的时间t 1之后的时段内增加 预定模式切换阈值电压#VB 14V。计数器值和定时器值在从时间t 2到时间t 3的时间段内减小。在时间t 3，操作模式从非充电模式切换到充电 模式。