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    • 1. 发明授权
    • Electric power steering device for a motor vehicle
    • 机动车用电动助力转向装置
    • US4685528A
    • 1987-08-11
    • US839542
    • 1986-03-14
    • Mikio SuzukiShigeo IwashitaMasaaki Hayashi
    • Mikio SuzukiShigeo IwashitaMasaaki Hayashi
    • B62D5/04B62D6/02
    • B62D5/0463
    • In an electric power steering device, an electric motor is drivingly connected to a steering shaft with a steering wheel for generating an assisting power to rotate the steering shaft. A memory has stored a control pattern which non-linearly varies an assisting power with variations in a steering effort. A microprocessor responsive to a vehicle speed detected by a speed sensor ascertains whether the detected vehicle speed is within a low speed range or within a high speed range. Ascertaining that the detected speed is within the low speed range, the microprocessor searches the memory for an assisting power corresponding to the steering effort detected by a torque sensor. Ascertaining that the detected vehicle speed is within the high speed range, on the other hand, the microprocessor calculates an assisting power based upon the detected steering effort and a constant. The microprocessor then outputs a control signal representing either of the searched and calculated assisting power to a signal modulator, which modulates the control signal based upon the vehicle speed from the speed sensor so that the assisting power generated by the electric motor is controlled to meet the modified signal from the signal modulator.
    • 在电动助力转向装置中,电动机驱动地连接到具有用于产生辅助动力以转动转向轴的方向盘的转向轴。 存储器存储了控制模式,其随着转向力的变化而非线性地改变辅助功率。 响应于由速度传感器检测到的车速的微处理器确定检测到的车速是否在低速范围内或在高速范围内。 确定检测到的速度在低速范围内,微处理器在存储器中搜索对应于由转矩传感器检测的转向力的辅助功率。 另一方面,为了确定所检测的车速在高速范围内,微处理器基于检测到的转向力和常数来计算辅助动力。 然后微处理器将表示搜索和计算的辅助功率的控制信号输出到信号调制器,信号调制器根据来自速度传感器的车速来调制控制信号,从而控制由电动机产生的辅助电力以满足 来自信号调制器的修改信号。
    • 2. 发明授权
    • Electric power steering system for a motor vehicle
    • 机动车电动助力转向系统
    • US4653601A
    • 1987-03-31
    • US813834
    • 1985-12-27
    • Keiichi NakamuraKunihiko EtoMikio SuzukiMasaaki HayashiShigeo Iwashita
    • Keiichi NakamuraKunihiko EtoMikio SuzukiMasaaki HayashiShigeo Iwashita
    • B62D5/04
    • B62D5/0457B62D5/0475
    • In an electric power steering system, a d.c. motor is drivingly connected to a steering shaft with a steering for generating an assisting power to rotate the steering shaft. Independently of an alternator for charging a battery, a d.c. generator driven by a vehicle engine is dedicated for supplying an electric power to the d.c. motor. A control circuit is responsive to a signal representing a manual torque applied to the steering and reads out one of objective values from a memory. The control circuit is further responsive to a fed-back signal indicative of a load applied to the d.c. motor and controls electric current flowing across a field coil of the d.c. generator in such a manner that the difference between the read-out objective value and the fed-back signal becomes zero.
    • 在电动助力转向系统中, 马达驱动地连接到具有用于产生辅助动力以转动转向轴的转向的转向轴。 独立于用于对电池充电的交流发电机,直流 由车辆发动机驱动的发电机专用于向直流电供应电力。 发动机。 控制电路响应于表示施加到转向的手动转矩的信号,并从存储器中读出一个目标值。 控制电路进一步响应于反馈信号,该反馈信号指示施加到直流电的负载。 电动机并控制流过直流电场的励磁线圈的电流。 发生器以读出目标值和反馈信号之间的差成为零的方式。
    • 4. 发明授权
    • Isolated switch-mode power supply device
    • 隔离式开关电源装置
    • US08625317B2
    • 2014-01-07
    • US13509749
    • 2011-07-13
    • Masaaki HayashiHiroshi Narisawa
    • Masaaki HayashiHiroshi Narisawa
    • H02M1/36
    • H02M1/36H02M3/33523H02M2001/0006H02M2001/0035Y02B70/16
    • The present invention provides an isolated switch-mode power supply device capable of sufficiently reducing power consumption in a standby mode. An isolated switch-mode power supply device includes: a capacitor that supplies control power for controlling switching of a switching element; a first control unit that includes a constant current supplying unit that controls switching of the switching element; a switching element that connects or disconnects the first control unit and the capacitor; a capacitance element unit having a capacitor to which a constant current is supplied from the constant current supplying unit, a capacitor charge voltage of the capacitance element unit changing according to an outputted voltage in the standby mode; and a second control unit that controls power supply to the first control unit by closing or opening the switching element during a switching pause period in the standby mode according to the capacitor charge voltage of the capacitor.
    • 本发明提供一种能够在待机模式下充分降低功耗的隔离开关电源装置。 隔离开关电源装置包括:电容器,其提供用于控制开关元件的开关的控制电力; 第一控制单元,其包括控制所述开关元件的开关的恒流供给单元; 连接或断开第一控制单元和电容器的开关元件; 电容元件单元,具有从所述恒定电流供给单元供给恒定电流的电容器,所述电容元件单元的电容器充电电压根据所述待机模式下的输出电压而变化; 以及第二控制单元,其根据电容器的电容器充电电压在待机模式下的切换暂停时段期间通过关闭或打开开关元件来控制对第一控制单元的电力供应。
    • 6. 发明授权
    • Image reading apparatus having multiple wavelength light sources and control method for the same
    • 具有多个波长光源的图像读取装置及其控制方法
    • US06501087B1
    • 2002-12-31
    • US09549834
    • 2000-04-14
    • Hideyuki KoretsuneMasaaki Hayashi
    • Hideyuki KoretsuneMasaaki Hayashi
    • G06K1100
    • G07D7/121
    • To keep operation of a control circuit for a line sensor reading operation always the same regardless of variations and differences between readers, simplify the control circuit, and avoid complicated processes such as setting various software process parameters for canceling differences between the readers. A line shaped, two-wavelength transmitting LED array and a line shaped light emitting/photodetecting part comprising a photodetector array and a two-wavelength reflecting LED array are disposed in opposition each other such that a read medium passes between the two-wavelength LED array for transmitting light and the light emitting/photodetecting part, and the two-wavelength LED array for tranmitting light and two-wavelength LED array for reflecting light emit light of different wavelengths. An storage time control circuit is disposed in a signal processing circuit of the photodetector array; and a control means is provided for controlling light emission with the two-wavelength transmitting LED array and two-wavelength reflecting LED array, controlling reading with the photodetectors, and controlling the storage time control circuit. Variations in wavelength detection sensitivity and light quantity with different scanned media are adjusted by means of the storage time of the storage time control circuit.
    • 为了保持线路传感器读取操作的控制电路的操作始终相同,无论读取器之间的差异如何,简化控制电路,并避免复杂的过程,例如设置各种软件过程参数以消除读取器之间的差异。 包括光电检测器阵列和双波长反射LED阵列的线形双波长透射LED阵列和线形发光/光电检测部分彼此相对设置,使得读介质在双波长LED阵列之间通过 用于发射光和发光/光电检测部分,用于发光的双波长LED阵列和用于反射光的双波长LED阵列发射不同波长的光。 存储时间控制电路设置在光电检测器阵列的信号处理电路中; 并且提供控制装置,用于控制双波长透射LED阵列和双波长反射LED阵列的发光,控制用光电检测器的读取,并控制存储时间控制电路。 通过存储时间控制电路的存储时间来调整不同扫描介质的波长检测灵敏度和光量的变化。