Rotational speed and position detector for supercharger
    1.
    发明授权
    Rotational speed and position detector for supercharger 有权
    增压器转速和位置检测器

    公开(公告)号:US07112958B2

    公开(公告)日:2006-09-26

    申请号:US11010451

    申请日:2004-12-14

    IPC分类号: G01B7/30

    摘要: A motor-assisted turbocharger is composed of a turbine driven by energy of exhaust gas, a compressor rotated by the turbine and a rotary electric machine for assisting rotation of the compressor. The turbine, the compressor and the rotary electric machine are connected to each other by a common rotating shaft. A polygon nut having magnetic member facing fixed magnetic sensor is connected to an axial end of the rotating shaft. A magnetic field formed between the magnetic member and the magnetic sensor changes according to rotation of the rotating shaft. A rotational speed and a rotational position (or angle) of the compressor are detected based on the changes in the magnetic field. Operation of the turbocharger is electronically controlled based on the detected rotational speed and the rotational position.

    摘要翻译: 电动辅助涡轮增压器由废气能量驱动的涡轮机,由涡轮机旋转的压缩机和用于辅助压缩机的旋转的旋转电机组成。 涡轮机,压缩机和旋转电机通过共同的旋转轴彼此连接。 具有面向固定磁传感器的磁性构件的多边形螺母连接到旋转轴的轴向端。 磁性构件和磁性传感器之间形成的磁场根据旋转轴的旋转而变化。 基于磁场的变化来检测压缩机的旋转速度和旋转位置(或角度)。 涡轮增压器的操作基于检测到的转速和旋转位置进行电子控制。

    Heat wire type air flowrate measuring apparatus
    3.
    发明授权
    Heat wire type air flowrate measuring apparatus 失效
    热丝式空气流量测量仪

    公开(公告)号:US4665745A

    公开(公告)日:1987-05-19

    申请号:US729852

    申请日:1985-05-02

    IPC分类号: G01F1/698 G01F1/68

    CPC分类号: G01F1/6986

    摘要: An air flowrate measuring apparatus with a heat wire measures the flow rate of the air flowing through the intake pipe of an engine. The apparatus has a temperature sensitive element which has a specific temperature-resistance characteristic and is disposed in the intake pipe. Constant heating voltage is applied to this element in response to a start signal, thus heating the element. When the temperature of the element rises to a specified value, the application of the voltage is stopped. At the same time, a pulse signal whose width corresponds to the period of applying the voltage is generated. The signal is supplied to an interface circuit through a drive circuit driven by a reference voltage which has been also used to control the heating voltage. The interface circuit comprises two wave-shaping circuits. The first wave-shaping circuit has a filter means of a small integration time constant. The second wave-shaping circuit has a filter means whose integration time constant is large enough to remove noise from the input signal.

    摘要翻译: 具有热丝的空气流量测量装置测量流过发动机的进气管的空气的流量。 该装置具有温度敏感元件,该温度敏感元件具有特定的耐温特性并且设置在进气管中。 响应于启动信号对该元件施加恒定的加热电压,从而加热元件。 当元件的温度上升到指定值时,停止施加电压。 同时,产生宽度对应于施加电压的周期的脉冲信号。 该信号通过由参考电压驱动的驱动电路提供给接口电路,该参考电压也被用于控制加热电压。 接口电路包括两个波形整形电路。 第一波形整形电路具有小积分时间常数的滤波器装置。 第二波形整形电路具有滤波器装置,其积分时间常数足够大以从输入信号中去除噪声。

    Rotation detector using magnetoresistance element positioned in vicinity
of outer peripheral edge of toothed gear
    4.
    发明授权
    Rotation detector using magnetoresistance element positioned in vicinity of outer peripheral edge of toothed gear 失效
    旋转检测器使用位于齿轮外周边缘附近的磁阻元件

    公开(公告)号:US6104186A

    公开(公告)日:2000-08-15

    申请号:US57495

    申请日:1998-04-09

    摘要: A magnetoresistance element detects an angular position of a toothed gear rotated by an engine. The element (first element) is positioned at a vicinity of the peripheral edge of the gear tooth in a magnetic filed supplied from a bias magnet. The magnetic field direction is changed by the tooth, which is detected by the element even when the gear is not rotated before the engine starts. To detect an exact angle of the gear, an additional magnetoresistance element positioned perpendicularly to the first element may be used. The gear tooth position is detected by the first element even when the gear is not rotated, and once the gear rotates, the second element detects an exact angular position of the gear.

    摘要翻译: 磁阻元件检测由发动机旋转的齿轮的角位置。 元件(第一元件)位于从偏置磁铁供给的磁场中的齿轮齿周边附近。 即使齿轮在发动机起动前没有旋转,磁场方向由齿也可以被元件所检测。 为了检测齿轮的精确角度,可以使用垂直于第一元件定位的附加磁阻元件。 即使齿轮没有旋转,齿轮齿位置也被第一元件检测到,一旦齿轮旋转,第二元件就检测齿轮的确切的角度位置。

    Temperature drift stabilized filter circuit
    5.
    发明授权
    Temperature drift stabilized filter circuit 失效
    温度漂移稳定滤波电路

    公开(公告)号:US5659264A

    公开(公告)日:1997-08-19

    申请号:US589304

    申请日:1996-01-22

    摘要: The output of a filter circuit utilizing a capacitance amplifier circuit is sufficiently stabilized in its temperature characteristics to improve the operational reliability of the circuit. There is provided a DC cutoff filter circuit utilizing a CR circuit constituted by a composite capacitance formed by a capacitance amplifier circuit utilizing an operational amplifier and a series resistor which is grounded to a reference voltage. The reference voltage is a divided voltage output by a voltage follower constituted by an operational amplifier and serves as a virtual ground. Resistors having different temperature coefficients are used. In response to a positive or negative change in the temperature coefficient of the composite capacitance, the reference potential selects the temperature coefficient of the resistors so that the temperature characteristics including those of the amplifier will provide a temperature coefficient which is the reverse of that of the capacitance amplifier circuit, thereby compensating for fluctuation associated with the temperature coefficient of the composite capacitance.

    摘要翻译: 使用电容放大器电路的滤波器电路的输出在其温度特性中足够稳定,以提高电路的操作可靠性。 提供了利用由电容放大器电路形成的复合电容构成的CR电路的DC截止滤波器电路,该电容放大电路利用运算放大器和接地到参考电压的串联电阻。 参考电压是由运算放大器构成的电压跟随器输出的分压,用作虚拟地。 使用具有不同温度系数的电阻器。 响应于复合电容的温度系数的正或负变化,参考电位选择电阻器的温度系数,使得包括放大器的温度特性将提供与温度系数相反的温度系数 电容放大器电路,从而补偿与复合电容的温度系数相关的波动。

    Electronic ignition timing adjusting system for internal combustion
engines
    6.
    发明授权
    Electronic ignition timing adjusting system for internal combustion engines 失效
    内燃机电子点火正时调整系统

    公开(公告)号:US4624234A

    公开(公告)日:1986-11-25

    申请号:US713681

    申请日:1985-03-20

    摘要: An ignition timing adjusting system for an internal combustion engine wherein the output of a magneto-type generator driven by the engine is used as a power source to generate a constant voltage output through a voltage regulator circuit, and a rotational angular position of the engine is detected by a sensor and the corresponding output signal being used as a reference signal in order to electronically determine an ignition timing by an advance angle computing circuit energized by the constant voltage output of the voltage regulator circuit, and further detecting the constant voltage output of the regulator circuit, and an advance angle adjusting circuit cancels the computed output from the advance angle adjusting circuit when the detected voltage is less than a voltage which is an absolute minimum voltage necessary for the accurate ignition timing operation, whereby when the detected constant voltage output is not adequately regulated the computed output of the advance angle adjusting circuit causing the excessively advanced ignition timing is ignored, instead, forcibly timing the ignition to occur at the low-speed fixed angular position.

    摘要翻译: 一种用于内燃机的点火正时调整系统,其中由发动机驱动的磁致发电机的输出用作电源,以通过电压调节器电路产生恒定电压输出,并且发动机的旋转角位置为 由传感器检测,相应的输出信号用作参考信号,以便通过由稳压器电路的恒定电压输出激励的提前角计算电路电子地确定点火正时,并进一步检测 调节器电路和提前角度调整电路当检测电压小于作为精确点火正时动作所需的绝对最小电压的电压时,抵消来自提前角调整电路的计算输出,由此当检测到的恒定电压输出为 没有充分调节提前角调整的计算输出 导致引起过高点火正时的g电路被忽略,而是强制地将点火定时发生在低速固定角位置。

    Rotational speed and position detector for supercharger compressor
    7.
    发明申请
    Rotational speed and position detector for supercharger compressor 审中-公开
    增压压缩机的转速和位置检测器

    公开(公告)号:US20050155349A1

    公开(公告)日:2005-07-21

    申请号:US11010366

    申请日:2004-12-14

    摘要: A motor-assisted turbocharger is composed of a turbine driven by energy of exhaust gas, a compressor rotated by the turbine and a rotary electric machine for assisting rotation of the compressor. The turbine, the compressor blade and the rotary electric machine are connected to each other by a common rotating shaft. The compressor blade made of a material including a magnetic material faces an inner surface of a housing in which a magnetic sensor is embedded. A magnetic field in an air gap between the compressor blade and the magnetic sensor changes according to rotation of the compressor blade. The magnetic sensor detects changes in the magnetic field to thereby detect the rotational speed of the compressor blade. In place of the magnetic field, other physical amounts in the air gap, such as pressure, sound frequencies, capacitance or the like may be used for detecting the rotational speed.

    摘要翻译: 电动辅助涡轮增压器由废气能量驱动的涡轮机,由涡轮机旋转的压缩机和用于辅助压缩机的旋转的旋转电机组成。 涡轮机,压缩机叶片和旋转电机通过共同的旋转轴彼此连接。 由包括磁性材料的材料制成的压缩机叶片面向嵌入有磁性传感器的壳体的内表面。 压缩机叶片和磁性传感器之间的气隙中的磁场根据压缩机叶片的旋转而变化。 磁传感器检测磁场的变化,从而检测压缩机叶片的转速。 代替磁场,可以使用气隙中的其他物理量,例如压力,声频,电容等来检测转速。

    Semiconductor accelerometer with damperless structure
    8.
    发明授权
    Semiconductor accelerometer with damperless structure 失效
    具有无阻尼结构的半导体加速度计

    公开(公告)号:US5507182A

    公开(公告)日:1996-04-16

    申请号:US198052

    申请日:1994-02-18

    摘要: A semiconductor accelerometer which can satisfy the requirements of both the sensitivity and the fracture strength without any contrivance for providing viscous liquid and beam stopper material is provided. A casing comprises a stem and a shell. The casing houses an accelerometer chip. The silicon accelerometer chip is of double cantilever beam structure. Each beam is provided with piezo resistance layers. The motion of the beams due to the action of acceleration is converted into electrical signals. The resonant frequency of the beams of the accelerometer chip is above the resonant frequency of the casing itself, so that the acceleration components above this resonant frequency are damped by the casing and therefore most acceleration components in the resonant frequency of the beam are damped. As a result, the beams of the accelerometer chip can be protected from the impacts due to the dropping of the accelerometer, or the like.

    摘要翻译: 提供了能够满足灵敏度和断裂强度要求的半导体加速度计,而没有任何设计提供粘性液体和束塞材料。 壳体包括杆和壳。 外壳装有加速度计芯片。 硅加速度计芯片是双悬臂梁结构。 每个梁都设有压电电阻层。 由于加速度的作用,梁的运动被转换为电信号。 加速度计芯片的光束的谐振频率高于壳体本身的谐振频率,使得高于该谐振频率的加速度分量被壳体阻尼,因此波束的谐振频率中的大多数加速度分量被衰减。 结果,可以防止加速度计芯片的梁由于加速度计的掉落等而受到冲击。

    Apparatus for controlling engine
    9.
    发明授权
    Apparatus for controlling engine 失效
    发动机控制装置

    公开(公告)号:US4683858A

    公开(公告)日:1987-08-04

    申请号:US863938

    申请日:1986-05-16

    摘要: In an apparatus for controlling an engine, as an air flow sensor for measuring intake air flow quantity, a heater resistor having temperature-resistance characteristic and a temperature sensitive resistor for sensing air temperature are provided in an intake passage, and heating electric power is supplied to the heater resistor in response to a start signal generated periodically. The heating electric power is cut off when the temperature of the heater resistor is raised to a specified reference temperature predetermined in accordance with the air temperature, so that an output signal indicative of the time width in which the heating electric power is supplied is applied to an electronic control unit to measure air flow quantity therefrom. Further, compensation coefficient stored in a memory is derived in correspondence to the intake air temperature sensed by the temperature sensitive resistor, and the output signal is compensated for by the compensation coefficient to compensate the measured air flow quantity. Based on the compensated air flow quantity, fuel injection quantity, ignition timing or the like is computed in the electronic control unit.

    摘要翻译: 在用于控制发动机的装置中,作为用于测量进气流量的气流传感器,具有耐温特性的加热电阻器和用于感测空气温度的感温电阻器设置在进气通道中,并且供应加热电力 响应于周期性地产生的启动信号到加热器电阻器。 当加热电阻器的温度升高到根据空气温度预定的指定参考温度时,加热电力被切断,从而将表示加热电力的时间宽度的输出信号施加到 电子控制单元,用于测量气流量。 此外,存储在存储器中的补偿系数相应于由感温电阻感测的进气温度导出,并且通过补偿系数补偿输出信号以补偿测量的空气流量。 基于补偿空气流量,在电子控制单元中计算燃料喷射量,点火正时等。

    Apparatus for measuring the quantity of airflow passing through an
intake passage of an engine
    10.
    发明授权
    Apparatus for measuring the quantity of airflow passing through an intake passage of an engine 失效
    用于测量通过发动机的进气通道的气流量的装置

    公开(公告)号:US4565091A

    公开(公告)日:1986-01-21

    申请号:US723894

    申请日:1985-04-16

    摘要: Disposed in an intake pipe of an engine is a temperature-sensitive element formed of a resistance element whose resistance value varies with temperature. A heating current is supplied to the temperature-sensitive element through a transistor. The voltage of the heating current is set by a constant-voltage circuit. The temperature of the temperature-sensitive element is compared with a reference temperature of an auxiliary temperature-sensitive element. When the temperature of the temperature-sensitive element is increased to a predetermined level, an output signal is delivered from a comparator. A flip-flop circuit is reset by the output signal from the comparator, and is set by a start pulse signal. When the flip-flop circuit is set, the transistor is turned on, allowing the heating current to be supplied to the temperature-sensitive element. A burning-off instruction signal is supplied to a monostable multivibrator, and a signal with a duration suited for the burning-off operation is delivered from an AND circuit. In response to the output signal from the AND circuit, the flip-flop circuit is held set, and a reference voltage supplied to the differential amplifier is changed to a low level.

    摘要翻译: 在发动机的进气管中设置的是由电阻值随温度变化的电阻元件形成的感温元件。 通过晶体管将加热电流提供给感温元件。 加热电流的电压由恒压电路设定。 将温度敏感元件的温度与辅助温度敏感元件的参考温度进行比较。 当温度敏感元件的温度升高到预定电平时,输出信号从比较器输出。 触发器电路由比较器的输出信号复位,并由起始脉冲信号设定。 当触发器电路被置位时,晶体管导通,允许加热电流被提供给温度敏感元件。 烧断指令信号被提供给单稳态多谐振荡器,并且具有适合于断电操作的持续时间的信号从AND电路传送。 响应于AND电路的输出信号,触发器电路被保持置位,并且提供给差分放大器的参考电压变为低电平。