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    Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same
    14.
    发明授权
    Exhaust gas control apparatus for internal combustion engine and exhaust gas control method for the same 有权

    公开(公告)号：US11920532B2

    公开(公告)日：2024-03-05

    申请号：US18316158

    申请日：2023-05-11

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Keiichiro Aoki

    IPC分类号： F02D11/00 ,  F01N11/00 ,  F02D41/02

    CPC分类号： F02D41/0235 ,  F01N11/002 ,  F01N2550/02 ,  F02D2200/0802

    摘要： An exhaust gas control apparatus for an internal combustion engine includes: a catalyst which is capable of storing oxygen; a downstream air-fuel ratio sensor that detects the air-fuel ratio of outgoing exhaust gas flowing out of the catalyst; an air-fuel ratio control unit that controls the air-fuel ratio of incoming exhaust gas flowing into the catalyst; and a catalyst state estimation unit that estimates the activity of the catalyst. The air-fuel ratio control unit controls the air-fuel ratio of the incoming exhaust gas so that the air-fuel ratio of the outgoing exhaust gas detected by the downstream air-fuel ratio sensor is maintained at a target air-fuel ratio. The air-fuel ratio control unit sets the target air-fuel ratio to a richer value when the activity of the catalyst is equal to or higher than a predetermined value than when the activity of the catalyst is lower than the predetermined value.

    Method of controlling an engine of a vehicle
    15.
    发明授权
    Method of controlling an engine of a vehicle 有权

    公开(公告)号：US10323584B2

    公开(公告)日：2019-06-18

    申请号：US15201504

    申请日：2016-07-03

    申请人： Fu Ling Chang

    发明人： Fu Ling Chang

    IPC分类号： F02D29/02 ,  B60Q1/06 ,  F02D11/10 ,  F02D11/00 ,  F02D11/02 ,  B60Q1/14 ,  B60Q1/28 ,  B60Q1/26

    摘要： A simple and effective control method is disclosed for starting and stopping a vehicle's engine and automatic lighting of position lamps to show the vehicle's location. The method uses brake and gear shift lever of the vehicle to generate selection signals, and a button switch can be pressed to stop or start the engine of the vehicle according to the selection signals, which can provide vehicle drivers a simple and secure way to control their vehicles while waiting at a stoplight.

    Control apparatus for internal combustion engine, control method for internal combustion engine and non-transitory computer-readable recording medium
    16.
    发明授权
    Control apparatus for internal combustion engine, control method for internal combustion engine and non-transitory computer-readable recording medium 有权
    用于内燃机的控制装置，内燃机的控制方法和非暂时的计算机可读记录介质

    公开(公告)号：US08694226B2

    公开(公告)日：2014-04-08

    申请号：US13103944

    申请日：2011-05-09

    申请人： Ken Kurahashi ,  Yukio Noda ,  Koichi Saiki

    发明人： Ken Kurahashi ,  Yukio Noda ,  Koichi Saiki

    IPC分类号： F02D11/00 ,  F02D41/00

    CPC分类号： F02D41/0085 ,  F02D41/1445 ,  F02D41/1454 ,  F02D41/1482 ,  F02D41/1497 ,  F02D41/18 ,  F02D41/22 ,  F02D41/222 ,  F02D41/2441 ,  F02D41/2474 ,  F02D2041/1432 ,  F02D2041/228 ,  F02D2200/101 ,  F02D2200/703 ,  Y02T10/40

    摘要： A control apparatus for an internal-combustion engine includes a diagnosis device. The diagnosis device includes a determination section and an exhaust flow rate calculator configured to calculate an exhaust flow rate that reflects a volume flow amount of exhaust gas. A filter is configured to filter a signal representing an air-fuel ratio so that a 0.5th-order frequency component of engine speed is extracted from the signal. An integrator is configured to accumulate a filtered signal for a predetermined period of time to compute an integration value. A corrector is configured to correct the integration value to compute a corrected integration value each time the integration value is computed by the integrator. The determination section is configured to determine that cylinder-to-cylinder air-fuel ratio imbalance occurs in cylinders if the corrected integration value is greater than a predetermined threshold value after the predetermined period of time has elapsed.

    摘要翻译： 内燃机的控制装置具有诊断装置。 诊断装置包括：判定部和排气流量计算器，被配置为计算反映废气的体积流量的排气流量。 滤波器被配置为对表示空燃比的信号进行滤波，从而从信号中提取出发动机转速的0.5次频率分量。 积分器被配置为在预定时间段内累积经滤波的信号以计算积分值。 校正器被配置为每当积分器计算积分值时校正积分值以计算校正积分值。 如果在经过了预定时间段之后校正积分值大于预定阈值，则确定部分被配置为确定气缸与气缸之间的空燃比不平衡发生。

    Air-fuel ratio diagnostic device for internal combustion engine
    18.
    发明授权
    Air-fuel ratio diagnostic device for internal combustion engine 有权
    内燃机空燃比诊断装置

    公开(公告)号：US08521405B2

    公开(公告)日：2013-08-27

    申请号：US13189664

    申请日：2011-07-25

    申请人： Kenya Maruyama

    发明人： Kenya Maruyama

    IPC分类号： F02D11/00 ,  F02D11/02

    CPC分类号： F02D41/0085 ,  F02D41/1454 ,  F02D41/22 ,  F02D41/221 ,  Y02T10/40

    摘要： An air-fuel ratio diagnostic device for an internal combustion engine. The device includes an air-fuel ratio that detects oxygen concentration in the exhaust. A determination unit determines a variation in air-fuel ratio between engine cylinders based on a detection value of the air-fuel ratio sensor. A change amount in the detection value for a certain time when the detection value is changing from a lean side peak value toward a rich side peak value is defined as a rich change rate. A change amount in the detection for a certain time when the detection value is changing from a rich side peak value toward a lean side peak value is defined as a lean change rate. The determination unit determines a degree of variation between the cylinders based on the rich and lean change rates.

    摘要翻译： 一种用于内燃机的空燃比诊断装置。 该装置包括检测排气中的氧浓度的空燃比。 确定单元基于空燃比传感器的检测值来确定发动机气缸之间的空燃比的变化。 当检测值从稀侧峰值向富侧峰值变化时，检测值的一定量的变化量被定义为浓度变化率。 将检测值从丰富侧峰值向稀侧峰值变化的一定时间的检测变化量定义为稀薄变化率。 确定单元基于富和贫变率来确定气缸之间的变化程度。

    Control system for a vehicle system with a continously variable transmission
    19.
    发明授权
    Control system for a vehicle system with a continously variable transmission 有权
    具有连续可变传动装置的车辆系统的控制系统

    公开(公告)号：US07900739B2

    公开(公告)日：2011-03-08

    申请号：US11609723

    申请日：2006-12-12

    申请人： Garth H. Bulgrien

    发明人： Garth H. Bulgrien

    IPC分类号： F02D11/00 ,  F02D11/02

    CPC分类号： F02D31/001 ,  F02D41/0215 ,  F02D2200/604 ,  F02D2400/12 ,  Y10T477/679

    摘要： The control system 10 of the first preferred embodiment includes a user interface 12 with a first control 14 that designates a maximum bound of a sub-range of engine speeds and a second control 16 that designates a minimum bound of a sub-range of engine speeds. The control system 10 of the first preferred embodiment also includes a processor 18 connected to the engine and to the user interface 12 that functions to, based on the required power output of the vehicle system, select a discrete engine speed from the sub-range of engine speeds. The control system 10 of the first preferred embodiment was designed for controlling engine speed of a vehicle system having an engine and a required power output, but may be used in any suitable environment.

    摘要翻译： 第一优选实施例的控制系统10包括具有第一控制器14的用户接口12，第一控制器14指定发动机速度的子范围的最大界限，以及指定发动机转速子范围的最小界限的第二控制器16 。 第一优选实施例的控制系统10还包括连接到发动机和用户接口12的处理器18，其用于基于车辆系统的所需功率输出，从子系统的子范围中选择离散发动机速度 发动机转速。 第一优选实施例的控制系统10被设计用于控制具有发动机和所需功率输出的车辆系统的发动机速度，但是可以在任何合适的环境中使用。

    Press-fit of sensor assembly in electronic throttle control application
    20.
    发明授权
    Press-fit of sensor assembly in electronic throttle control application 有权
    传感器组件的压配合在电子节气门控制应用中

    公开(公告)号：US07506633B2

    公开(公告)日：2009-03-24

    申请号：US11798833

    申请日：2007-05-17

    申请人： Nathan Cowan

    发明人： Nathan Cowan

    IPC分类号： F02D11/10 ,  F02D11/00

    CPC分类号： F02D11/10 ,  F02D2009/0294

    摘要： An electronic throttle control housing structure (10) for a vehicle includes an upper housing (12), a lower housing (14) mating with the upper housing, and a sensor assembly (20) clamped between the upper housing and the lower housing. One of the upper housing or the lower housing has surfaces defining slot structure (22, 24) therein. A portion of the sensor assembly is received in the slot structure in interference fit relation with the surfaces defining the slot structure. Thus, no screws or glue is needed to mount the sensor assembly in the housing structure.

    摘要翻译： 一种用于车辆的电子油门控制壳体结构（10）包括上壳体（12），与上壳体配合的下壳体（14）和夹在上壳体和下壳体之间的传感器组件（20）。 上壳体或下壳体中的一个具有在其中限定狭槽结构（22,24）的表面。 传感器组件的一部分以与限定槽结构的表面的过盈配合关系容纳在槽结构中。 因此，将传感器组件安装在壳体结构中不需要螺丝或胶水。