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    • 6. 发明授权
    • Power supply voltage detection circuit
    • 电源电压检测电路
    • US08373405B2
    • 2013-02-12
    • US12729824
    • 2010-03-23
    • Yuji Fujita
    • Yuji Fujita
    • G05F3/16G05F5/00
    • H03K17/223G01R19/16552
    • A power supply voltage detection circuit of the present invention includes a reference signal generation circuit that generates a reference signal according to a power supply voltage, a first transistor having a current flowing between a first terminal and a second terminal, where the current is controlled according to the reference signal, a voltage generation circuit that generates a control voltage according to a potential difference between the power supply voltage and the first terminal of the first transistor, and a second transistor that controls whether or not to output the power supply voltage according to the control voltage. Such circuit configuration enables to accurately detect a low voltage state of the power supply voltage.
    • 本发明的电源电压检测电路包括:参考信号产生电路,其根据电源电压生成参考信号;第一晶体管,具有在第一端子和第二端子之间流动的电流,其中电流根据 参考信号;电压产生电路,其根据第一晶体管的电源电压和第一端子之间的电位差产生控制电压;以及第二晶体管,其控制是否根据第一晶体管输出电源电压 控制电压。 这种电路结构能够精确地检测电源电压的低电压状态。
    • 7. 发明申请
    • BATTERY CHARGE/DISCHARGE CONTROL APPARATUS
    • 电池充电/放电控制装置
    • US20120098497A1
    • 2012-04-26
    • US13379980
    • 2010-06-01
    • Takashi OganeNaoki MarunoTsuyoshi MatsudaYuji Fujita
    • Takashi OganeNaoki MarunoTsuyoshi MatsudaYuji Fujita
    • H02J7/00
    • B60W20/13B60K6/485B60L11/1857B60L11/1862B60L11/187B60L2260/50B60W10/26B60W20/00B60W2510/246B60W2510/248B60W2530/14G01R31/3679H01M10/443H01M10/48H01M2220/20Y02T10/6226Y02T10/7044Y02T10/705
    • A battery charge/discharge control apparatus for a vehicle capable of driving an electric motor by a battery is provided. Temperature of the battery is detected, temperature history distribution of the battery after start of temperature detection is calculated, and a lifetime workload of the battery is calculated on the basis of this temperature history distribution of the battery. A permissible value of a workload increase rate indicating a workload to increase per unit distance is calculated on the basis of the lifetime workload of the battery and a travel distance of the vehicle. An actual workload increase rate of the battery is compared with the permissible value of the workload increase rate. In the case where the actual workload increase rate is larger than the permissible value of the workload increase rate, an output is restricted from the output of the battery restricted in a normal driving mode if necessary by a restricted value based upon a difference between the actual workload increase rate and the permissible value of the workload increase rate. This makes it possible to carry out lifetime prolonging control for the battery more accurately by setting up an appropriate charge/discharge permissible amount in accordance with temperature change of the battery in the past.
    • 提供一种能够通过电池驱动电动机的车辆的电池充放电控制装置。 检测电池的温度,计算开始温度检测后的电池的温度历史分布,并且基于电池的该温度历史分布来计算电池的寿命工作量。 基于电池的寿命工作量和车辆的行驶距离来计算表示每单位距离增加的工作负荷的工作量增加率的允许值。 将电池的实际工作负载增加率与工作量增加率的允许值进行比较。 在实际工作负荷增加率大于工作量增加率的允许值的情况下,如果必要,则以正常驱动模式限制的电池的输出限制输出,基于实际工作负荷增加率的实际值之间的差 工作量增加率和工作量增加率的允许值。 这使得可以通过根据过去的电池的温度变化设置适当的充电/放电允许量来更精确地执行电池的终身延长控制。
    • 8. 发明授权
    • Upper assembly structure of work machine
    • 作业机上装配结构
    • US08083019B2
    • 2011-12-27
    • US12398414
    • 2009-03-05
    • Yuji FujitaShinya MukaeJunichi Fujiwara
    • Yuji FujitaShinya MukaeJunichi Fujiwara
    • B60K5/00
    • E02F9/0808B62D33/0617B62D33/0633
    • An upper assembly structure of a work machine comprising a driver's seat mounted on a vehicle body, an engine compartment for housing an engine, a tank compartment for housing a tank, a hood, a tank cover member, a first partition for partitioning between the engine compartment and the driver's seat, a second partition for partitioning between the tank compartment and the driver's seat, and a support frame mounted on the engine compartment including an arm member protruding from the support frame toward the tank compartment, wherein the engine compartment and the tank compartment are arranged to form an L-shape as viewed from the top, wherein the engine compartment is covered by the first partition and the hood, wherein the tank compartment is covered by the second compartment and the tank cover member, and wherein the arm member supports internal equipment arranged inside the tank compartment.
    • 一种作业机械的上部装配结构,包括安装在车体上的驾驶员座椅,用于容纳发动机的发动机舱,用于容纳油箱的油箱隔室,油箱盖构件,用于在发动机之间分隔的第一隔板 隔间和驾驶员座椅,用于在储罐室和驾驶员座椅之间分隔的第二分隔件,以及安装在发动机舱上的支撑框架,其包括从支撑框架向罐室突出的臂构件,其中,发动机室和罐 隔室被布置成从顶部观察形成L形,其中发动机舱被第一隔板和罩覆盖,其中罐隔室被第二隔室和箱盖构件覆盖,并且其中臂构件 支持内部设备布置在水箱内。
    • 9. 发明申请
    • ELECTRIC MOTOR CONTROL SYSTEM
    • 电动马达控制系统
    • US20110241589A1
    • 2011-10-06
    • US13139353
    • 2009-11-02
    • Yasuyuki DanjoNaoki ImaiYuji FujitaFumio Anraku
    • Yasuyuki DanjoNaoki ImaiYuji FujitaFumio Anraku
    • H02H7/122
    • H02P27/06B60L3/003B60L11/14H02M2001/0009H02P29/0241Y02T10/642Y02T10/70Y02T10/7077
    • There is provided a control system for an electric motor to which electric power is supplied from a DC power supply via a multi-phase inverter, the multi-phase inverter including switch units respectively provided on a positive side and a negative side of arms corresponding to respective phases, each switch unit including a switching element and a reflux diode connected in parallel thereto. The control system comprises a phase current detection unit for detecting phase currents which flow between the inverter and the electric motor, a DC component acquiring unit for acquiring DC components of the respective phase currents, and a short-circuiting determination unit for determining that a short-circuit failure occurs in the inverter when at least one of the DC components of the phase currents acquired by the DC component acquiring unit exceeds a threshold. Consequently, the short-circuit failure of the inverter can be detected even though the control of the electric motor is stopped.
    • 提供了一种用于通过多相逆变器从直流电源供给电力的电动机的控制系统,所述多相逆变器包括分别设置在相对应的臂的正侧和负侧的开关单元 各个相位,每个开关单元包括并联连接的开关元件和回流二极管。 该控制系统包括用于检测在逆变器和电动机之间流动的相电流的相电流检测单元,用于获取各相电流的DC分量的DC分量获取单元,以及用于确定短路的短路确定单元 当由DC分量获取单元获取的相电流的DC分量中的至少一个超过阈值时,在逆变器中发生电路故障。 因此,即使电动机的控制停止,也可以检测出逆变器的短路故障。
    • 10. 发明授权
    • Lens drive unit
    • 镜头驱动单元
    • US07630151B2
    • 2009-12-08
    • US10585530
    • 2005-01-05
    • Yuji FujitaNoboru Otsuki
    • Yuji FujitaNoboru Otsuki
    • G02B7/02
    • G02B7/08G02B13/001G02B13/0035G02B13/009
    • In the lens drive unit; the position retaining parts are advanced by rotating the position retaining member, which is held in the case body in such a manner as to become rotatable, in the R direction so that the position retaining parts are positioned just under the protrusion parts of the movable lens body, and eventually the movable lens body can be retained at the middle position. Furthermore, the through-holes are advanced by rotating the position retaining member in the R direction so that the through-holes are positioned just under the protrusion parts of the movable lens body, and eventually the protrusion parts loosely get fitted into the through-holes of the position retaining member to enable the body tube holder to move downward.
    • 镜头驱动单元; 通过沿R方向旋转保持在壳体中的位置保持构件,使得位置保持部分在R方向上旋转,使得位置保持部分位于可移动透镜的突出部分正下方 身体,并且最终可移动的镜体可保持在中间位置。 此外,通过在R方向上旋转位置保持构件使通孔前进,使得通孔位于可移动透镜体的突出部分的正下方,并且最终突出部分松动地装配到通孔中 的位置保持构件,以使主体管保持器能够向下移动。