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    • 7. 发明授权
    • Hydraulic control system for a tractor
    • 拖拉机液压控制系统
    • US5452766A
    • 1995-09-26
    • US138672
    • 1993-10-18
    • Takeshi ImamuraSatoshi IidaSeiichi Takahashi
    • Takeshi ImamuraSatoshi IidaSeiichi Takahashi
    • A01B63/112
    • A01B63/112B60G2401/12
    • A control system for controlling a hydraulically operable link mechanism mounted on a working vehicle. The link mechanism includes lift arms, a hydraulic actuator for controlling the lift arms, a first and a second lower links each connected at one end thereof to a working implement, and connecting rods interconnecting the lift arms and the first and second lower links, respectively. The control system includes a first coupling for pivotally connecting the first lower link to one side of a vehicle body, a second coupling for pivotally connecting the second lower link to the other side of the vehicle body, strain gauges provided for the first and second couplings, respectively, and a control device for controlling the actuator based on detection signals received from the strain gauges.
    • 一种用于控制安装在工作车辆上的液压可操作的连杆机构的控制系统。 连杆机构包括提升臂,用于控制提升臂的液压致动器,分别在其一端连接到工作工具的第一和第二下部连杆,以及将升降臂与第一和第二下部连杆相互连接的连接杆 。 所述控制系统包括用于将所述第一下部连杆枢转地连接到车身的一侧的第一联接器,用于将所述第二下部连杆枢转地连接到所述车身的另一侧的第二联接件,用于所述第一和第二联接器 以及用于根据从应变计接收到的检测信号来控制致动器的控制装置。
    • 10. 发明授权
    • Switching power supply circuit with a soft-start function
    • 开关电源电路具有软启动功能
    • US07158394B2
    • 2007-01-02
    • US10547412
    • 2005-02-10
    • Seiichi TakahashiTakayoshi NishiyamaJun NagaiEito Moromizato
    • Seiichi TakahashiTakayoshi NishiyamaJun NagaiEito Moromizato
    • H02H7/10H02H7/122
    • H02M1/36Y10S323/901
    • A switching power supply circuit reduces the time from start-up driving to normal operation while a soft-start is carried out with an output voltage Vout. A soft-start capacitor is charged during the start-up time. After a soft-start voltage Vz has reached a predetermined signal-output starting voltage Vlow, soft start of the output voltage Vout is carried out by controlling the operation based on the soft-start voltage Vz. A time constant for charging the soft-start capacitor is set as a time constant that causes the charge voltage of the soft-start capacitor to sharply increase at least until the soft-start voltage Vz reaches the signal-output starting voltage Vlow after the circuit has started driving, and is switched to a time constant that causes a rising trend of the charge voltage of the soft-start capacitor to become gentle with a predetermined time-constant switching timing. The start-up time is reduced by an amount equivalent to a reduction in the delay time from the start of driving to the start of voltage output.
    • 当以输出电压Vout进行软启动时,开关电源电路将从启动驱动到正常操作的时间减少。 在启动时间内,软启动电容器被充电。 在软启动电压Vz达到预定的信号输出启动电压Vlow之后,通过控制基于软启动电压Vz的操作来执行输出电压Vout的软启动。 将软启动电容器充电的时间常数设定为使得软启动电容器的充电电压至少在软启动电压Vz达到信号输出启动电压Vlow之后至少急剧增加的时间常数 开始驱动,并切换到时间常数,使得软启动电容器的充电电压的上升趋势以预定的时间常数切换定时变得平缓。 启动时间减少相当于从开始驱动到开始输出电压的延迟时间的减少量。