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    • 33. 发明授权
    • Air-fuel ratio control device for internal combustion engine and method thereof
    • 用于内燃机的空燃比控制装置及其方法
    • US06453229B1
    • 2002-09-17
    • US09691209
    • 2000-10-19
    • Shigeo OhkumaKoji TakahashiSatoru WatanabeHajime HosoyaHidekazu YoshizawaHaruhiro Iwaki
    • Shigeo OhkumaKoji TakahashiSatoru WatanabeHajime HosoyaHidekazu YoshizawaHaruhiro Iwaki
    • F02D4114
    • F02D41/1403F02D41/1454F02D2041/1422F02D2250/12
    • 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.
    • 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。
    • 36. 发明授权
    • Crank angle signal processing apparatus
    • 曲柄角度信号处理装置
    • US5815827A
    • 1998-09-29
    • US640384
    • 1996-04-30
    • Naoki TomisawaSatoru Watanabe
    • Naoki TomisawaSatoru Watanabe
    • F02D41/24F02D41/34F02D45/00G01P3/481G05B15/00G06F9/46
    • F02D41/28F02D41/0097G01P3/481
    • The present invention relates to a circuit for processing internal combustion engine crank angle sensor signals. The construction is such that an output side circuit of a crank angle sensor outputs a crank angle signal with a high level pulse generated in response to the switching on and off of a switch element connected in series to a power source. Moreover, an input side circuit of a signal processing circuit includes a voltage reducing circuit which pulls down a power source voltage applied at the time of pulse generation, to a predetermined voltage and supplies this to an arithmetic processing section. Consequently, the output signal at the time of no pulse generation becomes a low level so that influence from noise is minimized. Also, since the input signal at the time of momentary disconnection of terminals connecting between the crank angle sensor and the processing circuit is a low level, then erroneous recognition of pulse generation is prevented. Moreover, since at the time of pulse generation, current flows between the terminals, then terminal oxidation film is removed so that poor contact can also be prevented.
    • 内燃机曲轴转角传感器信号处理电路技术领域本发明涉及一种用于处理内燃机曲柄角传感器信号的电路。 该结构使得曲柄角传感器的输出侧电路输出具有响应于与电源串联连接的开关元件的接通和断开而产生的高电平脉冲的曲柄角信号。 此外,信号处理电路的输入侧电路包括将脉冲产生时施加的电源电压下拉到预定电压的电压降低电路,并将其提供给运算处理部。 因此,无脉冲产生时的输出信号成为低电平,使得噪声的影响最小化。 此外,由于在曲柄角传感器和处理电路之间连接的端子瞬时断开时的输入信号为低电平,所以防止脉冲产生的错误识别。 此外,由于在脉冲产生时,电流在端子之间流动,因此端子氧化膜被去除,从而也可以防止接触不良。
    • 37. 发明授权
    • Throttle valve switch unit
    • 节气门开关单元
    • US5743132A
    • 1998-04-28
    • US855511
    • 1997-05-13
    • Hajime HosoyaSatoru Watanabe
    • Hajime HosoyaSatoru Watanabe
    • G01B7/30F02B77/08F02D9/00F02D11/10F02D45/00G01D5/16G01D5/165G01D5/25G01M15/00
    • G01D5/16F02D11/106G01D5/165G01D5/25
    • 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.
    • 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。
    • 38. 发明授权
    • Roof plate for longitudinal roofing
    • 屋顶板用于纵向屋顶
    • US5584155A
    • 1996-12-17
    • US120885
    • 1993-09-13
    • Satoru Watanabe
    • Satoru Watanabe
    • E04D3/366E04D1/00
    • E04D3/366
    • A roof plate for longitudinal roofing capable of exhibiting increased strength against a wind pressure and preventing rainwater from entering connection regions between the roof plates due to a capillary action and blowing of rainstorm against the connection regions. A plurality of the roof plates which are formed into a predetermined length in a longitudinal direction are longitudinally connected to each other in order for the purpose of assembling a roof. The roof plate includes a flat plate body, lateral rising connection sections provided on both lateral sides of the plate body, and longitudinal connection sections provided on both longitudinal ends of the plate body. The longitudinal connection sections include an eaves side connection section and a ridge side connection section, wherein the ridge side connection section includes a downwardly oblique portion and a support portion outwardly extending from the downwardly oblique portion and the eaves side connection section includes an engagement portion formed by downwardly folding an eaves side end of the plate body to define a gap therein. The longitudinally adjacent roof plates are connected through the longitudinal connection sections to each other.
    • 一种用于纵向屋顶的屋顶板,其能够显示出相对于风压增加的强度,并且防止雨水由于毛细管作用并且暴雨暴露于连接区域而进入屋顶板之间的连接区域。 为了组装屋顶的目的,沿纵向方向形成预定长度的多个屋顶板彼此纵向连接。 屋顶板包括平板体,设置在板体的两个侧面上的横向上升连接部分和设置在板体的两个纵向端部上的纵向连接部分。 纵向连接部分包括檐侧连接部分和脊侧连接部分,其中脊侧连接部分包括向下倾斜部分和从向下倾斜部分向外延伸的支撑部分,檐侧连接部分包括形成的接合部分 通过向下折叠板体的檐侧端部以在其中限定间隙。 纵向相邻的屋顶板通过纵向连接部彼此连接。