MULTI-PHASE VOLTAGE CONVERTING DEVICE, VEHICLE AND CONTROL METHOD OF MULTI-PHASE VOLTAGE CONVERTING DEVICE
    11.
    发明申请
    MULTI-PHASE VOLTAGE CONVERTING DEVICE, VEHICLE AND CONTROL METHOD OF MULTI-PHASE VOLTAGE CONVERTING DEVICE 有权
    多相电压转换装置的多相电压转换装置,车辆及其控制方法

    公开(公告)号:US20100002477A1

    公开(公告)日:2010-01-07

    申请号:US12517229

    申请日:2008-01-18

    IPC分类号: H02M5/45

    摘要: A multi-phase voltage converting device includes voltage converters each performing voltage conversion based on a control period selected from among a plurality of predetermined control periods, and a control device indicating the control period to the voltage converters. The control device updates the control period of voltage converters in a predetermined period related commonly to the plurality of control periods. The update period is a least common multiple of the plurality of control periods. The plurality of voltage converters are n in number, and the control device successively updates the control periods for the plurality of voltage converters with a time difference equal to 1/n of the update period. Thereby, the multi-phase voltage converting device suppressing output voltage ripples can be provided.

    摘要翻译: 多相电压转换装置包括各自根据从多个预定控制周期中选择的控制周期进行电压转换的电压转换器和向电压转换器指示控制周期的控制装置。 控制装置在与多个控制周期共同相关的预定周期中更新电压转换器的控制周期。 更新周期是多个控制周期的最小公倍数。 多个电压转换器的数量为n,控制装置以等于更新周期的1 / n的时间差连续地更新多个电压转换器的控制周期。 由此,可以提供抑制输出电压波纹的多相电压变换装置。

    Fuel cell system including soft switching boost converter
    12.
    发明授权
    Fuel cell system including soft switching boost converter 有权
    燃料电池系统包括软开关升压转换器

    公开(公告)号:US09029030B2

    公开(公告)日:2015-05-12

    申请号:US13516163

    申请日:2010-12-16

    摘要: A voltage boost converter includes: a main voltage boost portion that has a first switch and a first coil, and that raises output voltage of a direct-current power source by using counter electromotive force of the coil caused by the switch performing a switching action on the coil; and a subsidiary voltage boost portion which has a capacitor that adjusts potential difference between two poles of the switch by amount of electricity stored, and which reduces switching loss of the switch by adjusting the amount of electricity in the capacitor during the switching action, and which has a second switch and a second coil. The second coil is formed by winding a wire around at least a portion of a core formed of a magnetic body. The core is provided with a gap formed of a non-magnetic body. A core region formed of a magnetic body is adjacent to the gap.

    摘要翻译: 升压转换器包括:主升压部分,其具有第一开关和第一线圈,并且通过使用由开关执行开关动作的开关的线圈的反电动势来提高直流电源的输出电压 线圈 以及辅助升压部,其具有通过存储的电量来调节开关的两极之间的电位差的电容器,并且通过在开关动作期间调节电容器的电量来减小开关的开关损耗,并且哪个 具有第二开关和第二线圈。 第二线圈通过围绕由磁体形成的芯的至少一部分缠绕而形成。 芯部设置有由非磁性体形成的间隙。 由磁性体形成的芯部区域与间隙相邻。

    DC-DC converter with an auxiliary circuit for performing soft-switching
    13.
    发明授权
    DC-DC converter with an auxiliary circuit for performing soft-switching 有权
    DC-DC转换器,具有用于执行软切换的辅助电路

    公开(公告)号:US08970186B2

    公开(公告)日:2015-03-03

    申请号:US13635835

    申请日:2011-06-01

    摘要: A voltage conversion circuit apparatus that adjusts a timing skew between the switching control of the first switching element and the switching control of the second switching element includes: a skew storage portion that stores a timing skew between the switching controls of the first and second switching elements after the voltage conversion circuit apparatus is manufactured; and a timing adjustment portion that corrects the stored timing skew and thereby adjusts the timing relation between a first pulse signal and a second pulse signal so as to bring within a permissible range the timing skew that occurs when the switching controls of the first and second switching elements are performed by using the first pulse signal and the second pulse signal.

    摘要翻译: 调整第一开关元件的开关控制与第二开关元件的切换控制之间的定时偏差的电压变换电路装置包括:歪斜存储部,其存储第一开关元件和第二开关元件的开关控制之间的定时偏差 在电压转换电路装置制造之后; 以及定时调整部,其校正存储的定时偏差,从而调整第一脉冲信号和第二脉冲信号之间的定时关系,以便在允许范围内使得当第一和第二切换的切换控制时发生的定时偏移 通过使用第一脉冲信号和第二脉冲信号来执行元件。

    Fuel cell system
    14.
    发明授权
    Fuel cell system 有权
    燃料电池系统

    公开(公告)号:US08451006B2

    公开(公告)日:2013-05-28

    申请号:US12597245

    申请日:2008-05-27

    IPC分类号: G01N27/416 H01M10/44

    摘要: A fuel cell system is configured to have: a voltage superimposing unit that superimposes a predetermined AC signal on an output voltage of a fuel cell; a unit that detects an output voltage value of a battery device, the output voltage value varying as the fuel cell output voltage value on which the AC signal has been superimposed varies; a battery device voltage comparison unit that compares the detected battery device output voltage value with a predetermined threshold voltage; and a measurement permission determination unit that determines whether the AC impedance measurement is permitted or not based on whether or not the battery device output voltage value exceeds the threshold voltage. The fuel cell system can protect the battery device in the impedance measurement of the fuel cell based on an AC impedance method.

    摘要翻译: 燃料电池系统被配置为具有:将预定AC信号叠加在燃料电池的输出电压上的电压叠加单元; 检测电池装置的输出电压值的单元,随着叠加了交流信号的燃料电池输出电压值而变化的输出电压值变化; 电池装置电压比较部,将检测出的电池装置输出电压值与规定的阈值电压进行比较; 以及测量许可确定单元,其基于电池装置输出电压值是否超过阈值电压来判定是否允许了AC阻抗测量。 燃料电池系统可以基于交流阻抗法在燃料电池的阻抗测量中保护电池装置。

    FUEL CELL SYSTEM
    15.
    发明申请
    FUEL CELL SYSTEM 有权
    燃油电池系统

    公开(公告)号:US20100013490A1

    公开(公告)日:2010-01-21

    申请号:US12303518

    申请日:2007-08-16

    IPC分类号: G01N27/416

    摘要: When the operation point of a DC/DC converter, which steps up/down the output voltage of a fuel cell stack, is in a range of reduction in response capability and further there is issued a request of determining an AC impedance, a controller switches numbers of the drive phases of the DC/DC converter to determine an AC impedance of the fuel cell stack. If the operation point of the DC/DC converter is in the range of reduction in response capability and further the precision of determining the AC impedance is reduced, then the determination of AC impedance in the range of reduction in response capability is inhibited and the switching of the phases of the DC/DC converter is implemented, thereby causing the operation point of the DC/DC converter to be out of the range of reduction in response capability, with the result that the precision of determining the AC impedance can be raised.

    摘要翻译: 当升压/降低燃料电池堆的输出电压的DC / DC转换器的操作点处于响应能力降低的范围内时,还发出确定AC阻抗的请求,控制器切换 用于确定燃料电池堆的AC阻抗的DC / DC转换器的驱动相位数。 如果DC / DC转换器的工作点处于响应能力下降的范围内,并且进一步降低了确定交流阻抗的精度,那么阻抗在响应能力下降范围内的确定被阻止,并且切换 实现DC / DC转换器的相位,从而使得DC / DC转换器的操作点处于响应能力降低的范围之外,结果可以提高确定AC阻抗的精度。

    Converter control device
    16.
    发明授权
    Converter control device 有权
    转换器控制装置

    公开(公告)号:US07633783B2

    公开(公告)日:2009-12-15

    申请号:US12376009

    申请日:2007-10-01

    IPC分类号: H02M5/00 G05F1/10

    摘要: A converter device which is configured by connecting three converter circuits in parallel is provided between a secondary battery serving as a first power supply and a fuel cell serving as a second power supply. A control unit includes a PID control module which controls the converter device by PID control, for executing desired voltage conversion; a module for modifying the number of drive phases which changes the number of drive phases of the converter device in response to an electric power passing through the converter device; and a gain switching module which switches feedback gains in the PID control when the number of drive phases is changed.

    摘要翻译: 在用作第一电源的二次电池和用作第二电源的燃料电池之间提供并联连接三个转换器电路的A转换器装置。 控制单元包括PID控制模块,其通过PID控制来控制转换器装置,用于执行所需的电压转换; 用于响应于通过所述转换器装置的电力来修改改变所述转换器装置的驱动相位数的驱动相位数的模块; 以及增益切换模块,其在驱动阶段的数量改变时切换PID控制中的反馈增益。

    CONVERTER CONTROL DEVICE
    17.
    发明申请
    CONVERTER CONTROL DEVICE 有权
    转换器控制器件

    公开(公告)号:US20090190375A1

    公开(公告)日:2009-07-30

    申请号:US12376009

    申请日:2007-10-01

    IPC分类号: H02M3/335

    摘要: A converter device which is configured by connecting three converter circuits in parallel is provided between a secondary battery serving as a first power supply and a fuel cell serving as a second power supply. A control unit includes a PID control module which controls the converter device by PID control, for executing desired voltage conversion; a module for modifying the number of drive phases which changes the number of drive phases of the converter device in response to an electric power passing through the converter device; and a gain switching module which switches feedback gains in the PID control when the number of drive phases is changed.

    摘要翻译: 在用作第一电源的二次电池和用作第二电源的燃料电池之间提供并联连接三个转换器电路的A转换器装置。 控制单元包括PID控制模块,其通过PID控制来控制转换器装置,用于执行所需的电压转换; 用于响应于通过所述转换器装置的电力来修改改变所述转换器装置的驱动相位数的驱动相位数的模块; 以及增益切换模块,其在驱动阶段的数量改变时切换PID控制中的反馈增益。

    Fuel cell system with regulation of DC/DC converter passing power
    18.
    发明授权
    Fuel cell system with regulation of DC/DC converter passing power 有权
    具有DC / DC转换器通过功率调节的燃料电池系统

    公开(公告)号:US09450261B2

    公开(公告)日:2016-09-20

    申请号:US12810124

    申请日:2008-12-18

    IPC分类号: H01M8/04 B60L11/18 H02J7/34

    摘要: A fuel cell system capable of improving the voltage controllability of a converter provided in the system is provided. A controller judges whether or not a passing power of a DC/DC converter falls within a reduced response performance area for the number of active phases as of the present moment. When the controller determines that the passing power of the DC/DC converter falls within the reduced response performance area, the controller determines the number of phases which avoids the driving within the reduced response performance area, and outputs a command for switching to the determined number of phases (phase switching command) to the DC/DC converter.

    摘要翻译: 提供一种能够提高系统中设置的转换器的电压可控性的燃料电池系统。 控制器判断DC / DC转换器的通过功率是否落在当前时刻的有效相位数的降低的响应性能区域内。 当控制器确定DC / DC转换器的通过功率落在降低的响应性能区域内时,控制器确定在减小的响应性能区域内避免驾驶的相位数,并且输出用于切换到所确定的数量的命令 的相位(相位切换命令)到DC / DC转换器。

    Converter control device
    20.
    发明授权
    Converter control device 有权
    转换器控制装置

    公开(公告)号:US09024598B2

    公开(公告)日:2015-05-05

    申请号:US13379917

    申请日:2009-06-22

    IPC分类号: H02M1/34 H02M1/32

    CPC分类号: H02M1/32 H02M1/34

    摘要: Provided is a converter control device which detects an on-failure of an auxiliary switch constituting an auxiliary circuit of a soft switching converter and can prevent element failures. A current sensor for detecting the current flowing in a coil is provided between a fuel cell and the. A controller sequentially detects current by use of the current sensor and makes a judgment as to whether or not the detected current has exceeded an overcurrent threshold value stored in a memory (not shown). When the controller judges that the current has exceeded the overcurrent threshold value, the controller judges that a second switching element has an on-failure, and performs a fail-safe operation by stopping the driving of a converter (for example, a U-phase converter) of an auxiliary circuit provided with this second switching element.

    摘要翻译: 提供了一种转换器控制装置,其检测构成软开关转换器的辅助电路的辅助开关的故障,并且可以防止元件故障。 用于检测在线圈中流动的电流的电流传感器设置在燃料电池和燃料电池之间。 控制器通过使用电流传感器顺序地检测电流,并判断检测到的电流是否超过存储在存储器(未示出)中的过电流阈值。 当控制器判断电流已经超过过电流阈值时,控制器判断第二开关元件具有故障,并且通过停止转换器的驱动(例如,U相)来执行故障保护操作 转换器),该辅助电路具有该第二开关元件。