Air-fuel ratio control device for internal combustion engine and method thereof
    1.
    发明授权
    Air-fuel ratio control device for internal combustion engine and method thereof 失效
    用于内燃机的空燃比控制装置及其方法

    公开(公告)号:US06453229B1

    公开(公告)日:2002-09-17

    申请号:US09691209

    申请日:2000-10-19

    IPC分类号: F02D4114

    摘要: In an air-fuel ratio feedback control of an internal combustion engine aimed to approximate an air-fuel ratio to a target air-fuel ratio set according to operating conditions of the engine, the feedback control is carried out using the feedback control amount which is computed according to a sliding mode control, having a deviation between the target air-fuel ratio and the detected air-fuel ratio detected by the air-fuel ratio sensor set as a switching function. According to the present invention, a simple air-fuel ratio feedback control is carried out according to an accurate sliding mode control with no dispersion for each engine, that is easy to design, and that can be applied generally to any kind of vehicle or engine. Further, by varying the feedback gain depending on operating conditions, by controlling the computing cycle of the feedback control amount, or by performing a Smith dead time compensation control, the influence provided by the dead time element existing in the control object is eliminated, thereby ensuring the response characteristic and stability of the control system.

    摘要翻译: 在旨在将空燃比近似为根据发动机的运转条件设定的目标空燃比的内燃机的空燃比反馈控制中,使用反馈控制量进行反馈控制 根据滑动模式控制计算出具有由作为切换功能的空燃比传感器检测出的目标空燃比与检测空燃比之间的偏差。 根据本发明,简单的空燃比反馈控制是根据准确的滑动模式控制执行的,每个发动机没有分散,易于设计,并且可以普遍适用于任何种类的车辆或发动机 。 此外,通过根据操作条件改变反馈增益,通过控制反馈控制量的计算周期,或者通过执行史密斯死时补偿控制,消除由存在于控制对象中的死区元素提供的影响,由此 确保控制系统的响应特性和稳定性。

    Apparatus and method for controlling variable valve timing mechanism
    3.
    发明授权
    Apparatus and method for controlling variable valve timing mechanism 失效
    用于控制可变气门正时机构的装置和方法

    公开(公告)号:US06708657B2

    公开(公告)日:2004-03-23

    申请号:US10152620

    申请日:2002-05-23

    IPC分类号: F01L134

    摘要: In an apparatus for, controlling a variable valve timing mechanism that variably controls valve timing of an engine by changing a rotation phase of a camshaft relative to a crankshaft due to friction braking of an electromagnetic brake, the rotation phase is controlled while limiting a change rate of the rotation phase.

    摘要翻译: 在用于通过由于电磁制动器的摩擦制动改变凸轮轴相对于曲轴的旋转相位而可变地控制发动机的气门正时的可变气门正时机构的控制装置中,控制旋转相位,同时限制变化率 的旋转相位。

    Diagnosis apparatus for fuel vapor purge system and method thereof
    4.
    发明授权
    Diagnosis apparatus for fuel vapor purge system and method thereof 有权
    燃料蒸气吹扫系统诊断装置及其方法

    公开(公告)号:US07117729B2

    公开(公告)日:2006-10-10

    申请号:US10963804

    申请日:2004-10-14

    IPC分类号: G01M15/00

    CPC分类号: F02M25/0818 F02M25/0827

    摘要: In a fuel vapor purge system, a diagnosis section inclusive of a fuel tank is pressurized from the generation of fuel vapor in the fuel tank has been finished after an operation of an engine was stopped, and the diagnosis is performed based on a pressure in the diagnosis section.

    摘要翻译: 在燃料蒸气吹扫系统中,在停止发动机的运转之后,在燃料箱的燃料蒸气的产生已经完成之后,包括燃料箱的诊断部分被加压,并且基于 诊断部分。

    Diagnosis apparatus for fuel vapor purge system and method thereof
    5.
    发明申请
    Diagnosis apparatus for fuel vapor purge system and method thereof 有权
    燃料蒸气吹扫系统诊断装置及其方法

    公开(公告)号:US20050081612A1

    公开(公告)日:2005-04-21

    申请号:US10963804

    申请日:2004-10-14

    IPC分类号: F02M25/08 G01M19/00

    CPC分类号: F02M25/0818 F02M25/0827

    摘要: In a fuel vapor purge system, a diagnosis section inclusive of a fuel tank is pressurized from the generation of fuel vapor in the fuel tank has been finished after an operation of an engine was stopped, and the diagnosis is performed based on a pressure in the diagnosis section.

    摘要翻译: 在燃料蒸气吹扫系统中,在停止发动机的运转之后,在燃料箱的燃料蒸气的产生已经完成之后,包括燃料箱的诊断部分被加压,并且基于 诊断部分。

    Throttle valve switch unit
    6.
    发明授权
    Throttle valve switch unit 失效
    节气门开关单元

    公开(公告)号:US5743132A

    公开(公告)日:1998-04-28

    申请号:US855511

    申请日:1997-05-13

    摘要: A throttle valve switch unit for use with a throttle valve situated in an internal combustion engine. A mobile contact is drivingly connected to the throttle valve for movement with rotation of the throttle valve. The mobile contact is engageable with at least two fixed contacts. The first fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a first predetermined position. The second fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a second predetermined position. The first fixed contact is connected through a first resistance element to one of a first terminal for connection to the ground and a second terminal for connection with a source, of voltage. The second fixed contact is connected to the one terminal through a second resistance element having a resistance value different from that of the first resistance element. The mobile contact is connected to the other terminal through a third resistance element. The mobile contact is connected to a single signal terminal for producing signals having voltage levels different when the throttle valve occupies the first predetermined position than when the throttle valve occupies the second predetermined position.

    摘要翻译: 一种与位于内燃机中的节流阀一起使用的节气门开关单元。 活动触点驱动地连接到节流阀,以随着节流阀的旋转而移动。 移动触点可与至少两个固定触点接合。 当节流阀占据第一预定位置时,第一固定触点被放置用于与移动触点接合。 当节流阀占据第二预定位置时,第二固定触点被放置用于与移动触点接合。 第一固定触点通过第一电阻元件连接到用于连接到地的第一端子之一和用于与电压源连接的第二端子。 第二固定触点通过具有与第一电阻元件不同的电阻值的第二电阻元件连接到一个端子。 移动触点通过第三电阻元件连接到另一个端子。 当节流阀占据第一预定位置时,移动接触件连接到单个信号端子,用于产生具有不同于当节流阀占据第二预定位置时的电压水平不同的信号。

    Leakage diagnosis apparatus for fuel vapor purge system and method thereof
    8.
    发明授权
    Leakage diagnosis apparatus for fuel vapor purge system and method thereof 失效
    用于燃料蒸汽吹扫系统的泄漏诊断装置及其方法

    公开(公告)号:US06966214B2

    公开(公告)日:2005-11-22

    申请号:US10865849

    申请日:2004-06-14

    IPC分类号: G01M3/26 F02M25/08 G01M3/04

    CPC分类号: F02M25/0809

    摘要: In a fuel vapor purge system, an occurrence of leakage in a diagnosis zone is diagnosed, based on data indicating a pressure rise characteristic in the diagnosis zone for when the diagnosis zone is pressurized, and data indicating a pressure drop characteristic in the diagnosis zone after the pressurization of the diagnosis zone is stopped.

    摘要翻译: 在燃料蒸气吹扫系统中,基于在诊断区域被加压时在诊断区域中的压力上升特性的数据和表示诊断区域中的压降特性的数据的诊断区域中的泄漏的发生, 诊断区域的加压停止。

    Control apparatus for vehicle and method thereof
    10.
    发明授权
    Control apparatus for vehicle and method thereof 失效
    用于车辆的控制装置及其方法

    公开(公告)号:US06965825B2

    公开(公告)日:2005-11-15

    申请号:US10886045

    申请日:2004-07-08

    IPC分类号: F02D45/00 F02M25/08 F02M37/04

    摘要: In a diagnosis control for periodically detecting a pressure in a fuel tank during an operation of an engine is stopped, to diagnose whether or not the leakage occurs in a fuel vapor purge system, the power supply to a sensor detecting the pressure in the fuel tank is intermittently performed at each detection period.

    摘要翻译: 在停止在发动机运转期间周期性地检测燃料箱的压力的诊断控制中,为了诊断在燃料蒸气吹扫系统中是否发生泄漏,检测到燃料箱中的压力的​​传感器的电力 在每个检测周期间歇地执行。