Three-dimension active silencer
    1.
    发明授权

    公开(公告)号:US06901147B1

    公开(公告)日:2005-05-31

    申请号:US09604904

    申请日:2000-06-28

    CPC分类号: G10K11/178 G10K2210/12822

    摘要: A three-dimension active silencer includes a measuring unit for detecting a signal relating to a sound radiated from a target sound source which is located in a closed box. A plurality of additional sound sources are arranged around the target sound source. A microphone is arranged at a predetermined position for detecting a sound power at the position. A controller is adapted to control respective amplitudes of the additional sound sources which can be different from an amplitude of the target sound source and respective phases of the additional sound sources, based on the signal detected by the measuring unit, in such a manner that the microphone detects the lowest sound power. The additional sound sources are arranged in such a manner that a position xp of the target sound source, respective relative positions di (i=1, 2, . . . , N) of the N additional sound sources from the target sound source and a wave number k of the sound radiated from the target sound source can substantially satisfy the following expression. 1 N ⁢   ⁢ ∑ i = 1 N ⁢   ⁢ cos ⁢   ⁢ k ⁢   ⁢ ( x p - d i ) - cos ⁢   ⁢ k · x p ≅ 0 According to the feature, it can be achieved to reduce the total sound power in the closed box including the target sound source.

    Three-dimension active silencer
    2.
    发明申请

    公开(公告)号:US20050084115A1

    公开(公告)日:2005-04-21

    申请号:US10972320

    申请日:2004-10-26

    CPC分类号: G10K11/178 G10K2210/12822

    摘要: A three-dimension active silencer includes a measuring unit for detecting a signal relating to a sound radiated from a target sound source which is located in a closed box. A plurality of additional sound sources are arranged around the target sound source. A microphone is arranged at a predetermined position for detecting a sound power at the position. A controller is adapted to control respective amplitudes of the additional sound sources which can be different from an amplitude of the target sound source and respective phases of the additional sound sources, based on the signal detected by the measuring unit, in such a manner that the microphone detects the lowest sound power. The additional sound sources are arranged in such a manner that a position xp of the target sound source, respective relative positions di (i=1, 2, . . . , N) of the N additional sound sources from the target sound source and a wave number k of the sound radiated from the target sound source can substantially satisfy the following expression. 1 N ⁢ ∑ i = 1 N ⁢   ⁢ cos ⁢   ⁢ k ⁡ ( x p - d i ) - cos ⁢   ⁢ k · x p ≅ 0 According to the feature, it can be achieved to reduce the total sound power in the closed box including the target sound source.

    Fuel cell vehicle system
    4.
    发明授权
    Fuel cell vehicle system 有权
    燃料电池车系统

    公开(公告)号:US08027759B2

    公开(公告)日:2011-09-27

    申请号:US12100161

    申请日:2008-04-09

    IPC分类号: B60L11/00

    摘要: A fuel cell vehicle system includes: a propulsion motor capable of driving a vehicle; a fuel cell which generates electric power by supplying a reactant gas to give an electrochemical reaction; an energy storage device which is charged by a generated output of the fuel cell and regenerative electric power of the propulsion motor; an output control device which controls an output current of the fuel cell; and a control device which calculates the regenerative electric power which can be generated by a regenerative operation of the propulsion motor as well as a chargeable power which can be charged to the energy storage device, controls the output control device so that the output current of the fuel cell is restricted when the chargeable power is less than the regenerative electric power, and controls the output control device so that restriction on the output current of the fuel cell is canceled when the chargeable power is equal to or greater than the regenerative electric power.

    摘要翻译: 燃料电池车辆系统包括:能够驱动车辆的推进电动机; 燃料电池,其通过供给反应气体而产生电力以产生电化学反应; 由燃料电池的产生的输出和推进电动机的再生电力对蓄能装置进行充电; 控制燃料电池的输出电流的输出控制装置; 以及控制装置,其计算能够通过推进电动机的再生运行而产生的再生电力以及可以对能量存储装置充电的可充电功率,控制输出控制装置,使得输出控制装置的输出电流 当可充电功率小于再生电力时,燃料电池受到限制,并且当可充电功率等于或大于再生电力时,控制输出控制装置,使得对燃料电池的输出电流的限制被消除。

    Fuel cell power supply
    8.
    发明授权
    Fuel cell power supply 有权
    燃料电池电源

    公开(公告)号:US07485383B2

    公开(公告)日:2009-02-03

    申请号:US11319884

    申请日:2005-12-28

    摘要: A fuel cell power supply has a fuel cell and a capacitor which are connected parallel to each other, and controls the amount of a reacting gas supplied to the fuel gas based on a target supply current. A capacitor open voltage calculator calculates an open voltage (Vcap_O) of the capacitor from a detected current (Icap) of the capacitor, an output voltage (Vout) of the fuel cell, and an internal resistance (Rcap) of the capacitor. A corrective quantity calculator calculates a corrective quantity (Ifc_AM) for a target supply current (Ifc_REQ) based on the open voltage (Vcap_O) of the capacitor, the output voltage (Vout) of the fuel cell, and the target supply current (Ifc_REQ), so as to prevent an air compressor from operating excessively and also prevent the fuel cell from suffering a gas shortage, depending on current-voltage characteristic data (Icap−Vcap) of the fuel cell and current-voltage characteristic data (Ifc−Vcap) of the capacitor.

    摘要翻译: 燃料电池电源具有彼此并联连接的燃料电池和电容器,并且基于目标供给电流来控制供给燃料气体的反应气体的量。 电容器开路电压计算器根据电容器的检测电流(Icap),燃料电池的输出电压(Vout)和电容器的内部电阻(Rcap)来计算电容器的开路电压(Vcap_O)。 校正量计算器基于电容器的开路电压(Vcap_O),燃料电池的输出电压(Vout)和目标电源电流(Ifc_REQ)来计算目标电源电流(Ifc_REQ)的校正量(Ifc_AM) ,以防止空气压缩机过度运转,并且还根据燃料电池的电流 - 电压特性数据(Icap-Vcap)和电流 - 电压特性数据(Ifc-Vcap)来防止燃料电池遭受气体短缺, 的电容器。

    Control apparatus for fuel cell vehicle and control method for fuel cell vehicle
    9.
    发明申请
    Control apparatus for fuel cell vehicle and control method for fuel cell vehicle 有权
    燃料电池车辆用控制装置及燃料电池车辆的控制方法

    公开(公告)号:US20060278450A1

    公开(公告)日:2006-12-14

    申请号:US11447458

    申请日:2006-06-06

    IPC分类号: B60L8/00

    摘要: A management ECU of a control unit predicts the reduction degree of a system voltage according to an operational state of a motor based on the temperature of a fuel cell and a number of rotations of the motor, sets motor output restriction start voltage and motor output restriction end voltage which are threshold values of the system voltage for triggering an execution start and an execution end of a processing to restrict an output of the motor, and outputs them to a motor ECU. The motor ECU sets an output restriction coefficient that is a restriction rate in restricting the output of the motor based on a detected value of the system voltage and the motor output restriction start voltage and the motor output restriction end voltage, and restricts the output of the motor.

    摘要翻译: 控制单元的管理ECU基于燃料电池的温度和电动机的转数,根据电动机的运转状态来预测系统电压的减小程度,设定电动机输出限制开始电压和电动机输出限制 作为触发执行开始的系统电压的阈值的终止电压和用于限制电动机的输出的处理的执行结束,并将其输出到电动机ECU。 电动机ECU基于系统电压和电动机输出限制开始电压和电动机输出限制结束电压的检测值,设定作为限制电动机的输出的限制率的输出限制系数,并且限制 发动机。

    Fuel Cell Power supply
    10.
    发明申请
    Fuel Cell Power supply 有权
    燃料电池电源

    公开(公告)号:US20060105206A1

    公开(公告)日:2006-05-18

    申请号:US11319884

    申请日:2005-12-28

    IPC分类号: H01M8/00

    摘要: A fuel cell power supply has a fuel cell and a capacitor which are connected parallel to each other, and controls the amount of a reacting gas supplied to the fuel gas based on a target supply current. A capacitor open voltage calculator calculates an open voltage (Vcap_O) of the capacitor from a detected current (Icap) of the capacitor, an output voltage (Vout) of the fuel cell, and an internal resistance (Rcap) of the capacitor. A corrective quantity calculator calculates a corrective quantity (Ifc_AM) for a target supply current (Ifc_REQ) based on the open voltage (Vcap_O) of the capacitor, the output voltage (Vout) of the fuel cell, and the target supply current (Ifc_REQ), so as to prevent an air compressor from operating excessively and also prevent the fuel cell from suffering a gas shortage, depending on current-voltage characteristic data (Icap−Vcap) of the fuel cell and current-voltage characteristic data (Ifc−Vcap) of the capacitor.

    摘要翻译: 燃料电池电源具有彼此并联连接的燃料电池和电容器,并且基于目标供给电流来控制供给燃料气体的反应气体的量。 电容器开路电压计算器根据电容器的检测电流(Icap),燃料电池的输出电压(Vout)和电容器的内部电阻(Rcap)来计算电容器的开路电压(Vcap_O)。 校正量计算器基于电容器的开路电压(Vcap_O),燃料电池的输出电压(Vout)和目标电源电流(Ifc_REQ)来计算目标电源电流(Ifc_REQ)的校正量(Ifc_AM) ,以防止空气压缩机过度运转,并且还根据燃料电池的电流 - 电压特性数据(Icap-Vcap)和电流 - 电压特性数据(Ifc-Vcap)来防止燃料电池遭受气体短缺, 的电容器。