公开(公告)号：US08906567B2

公开(公告)日：2014-12-09

申请号：US13258146

申请日：2009-06-08

申请人： Takahiko Hasegawa ,  Nobuyuki Kitamura ,  Kota Manabe

发明人： Takahiko Hasegawa ,  Nobuyuki Kitamura ,  Kota Manabe

IPC分类号： H01M8/04 ,  H01M16/00 ,  B60L11/18 ,  B60L3/00

CPC分类号： H01M8/04589 ,  B60L3/003 ,  B60L3/0053 ,  B60L11/1881 ,  H01M8/04559 ,  H01M8/04686 ,  H01M16/006 ,  Y02E60/50 ,  Y02T90/34 ,  Y10T307/50

摘要： The present invention detects a failure in an FC converter. A target voltage determination section determines an output target voltage for a fuel cell. A superimposition signal generation section generates a predetermined reference signal to be superimposed onto the output target voltage. A voltage command signal generation section generates a voltage command signal by superimposing the reference signal onto the output target voltage. A frequency characteristics calculation section calculates the frequency characteristics of the reference signal component superimposed on the output voltage of the fuel cell. A failure judgment section judges that a failure occurs in the FC converter if a value of the calculated frequency characteristics is less than the lower limit threshold value of an allowable range established based on reference characteristics. A gain adjustment section adjusts the gains in the FC converter so that the frequency characteristics calculated by the frequency characteristics calculation section correspond to the reference characteristics.

摘要翻译： 本发明检测FC转换器的故障。 目标电压确定部确定燃料电池的输出目标电压。 叠加信号生成部生成叠加在输出目标电压上的规定的基准信号。 电压指令信号生成部通过将基准信号叠加在输出目标电压上来生成电压指令信号。 频率特性计算部分计算叠加在燃料电池的输出电压上的参考信号分量的频率特性。 如果所计算的频率特性的值小于基于参考特性建立的允许范围的下限阈值，则故障判断部分判断在FC转换器中发生故障。 增益调整部分调节FC转换器中的增益，使得由频率特性计算部分计算的频率特性对应于参考特性。

公开(公告)号：US20130119968A1

公开(公告)日：2013-05-16

申请号：US13635835

申请日：2011-06-01

申请人： Kota Manabe ,  Takahiko Hasegawa ,  Tomohiko Kaneko ,  Khalid Hassan Hussein ,  Shinji Hatae

发明人： Kota Manabe ,  Takahiko Hasegawa ,  Tomohiko Kaneko ,  Khalid Hassan Hussein ,  Shinji Hatae

IPC分类号： G05F3/08

CPC分类号： G05F3/08 ,  H02M3/158 ,  H02M2001/342 ,  Y02B70/1491

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。

公开(公告)号：US20120139522A1

公开(公告)日：2012-06-07

申请号：US13383119

申请日：2009-07-10

申请人： Takahiko Hasegawa ,  Nobuyuki Kitamura ,  Kota Manabe

发明人： Takahiko Hasegawa ,  Nobuyuki Kitamura ,  Kota Manabe

IPC分类号： G05F3/08

CPC分类号： H02M3/1584 ,  B60L11/1887 ,  B60L11/1892 ,  H02M1/32 ,  H02M1/34 ,  H02M2001/0058 ,  Y02T10/92 ,  Y02T90/34

摘要： There is disclosed a converter controller which can simply and early detect an abnormality of an auxiliary circuit constituting a soft switching converter. On turning off a first switching element, a controller detects a voltage between both the ends of a snubber capacitor and a voltage between both the ends of the first switching element, to obtain a difference voltage. The controller compares the obtained difference voltage with a voltage threshold value stored in a memory (not shown) to judge whether or not the difference voltage is larger than the voltage threshold value. When the difference voltage is smaller than the voltage threshold value, the controller judges that an auxiliary circuit is normal, to end processing, whereas when the difference voltage is not less than the voltage threshold value, the controller judges that a failure (an open failure) occurs in the auxiliary circuit, to shift to a fail safe operation, thereby ending the processing.

摘要翻译： 公开了一种转换器控制器，其可以简单且早期地检测构成软开关转换器的辅助电路的异常。 在关闭第一开关元件时，控制器检测缓冲电容器的两端之间的电压和第一开关元件的两端之间的电压，以获得差分电压。 控制器将获得的差分电压与存储在存储器（未示出）中的电压阈值进行比较，以判断差分电压是否大于电压阈值。 当差值电压小于电压阈值时，控制器判断辅助电路是正常的，以结束处理，而当差值电压不小于电压阈值时，控制器判断故障（开路故障 ）发生在辅助电路中，以转移到故障安全操作，从而结束处理。

公开(公告)号：US20120106204A1

公开(公告)日：2012-05-03

申请号：US13382773

申请日：2009-07-09

申请人： Hiroyuki Imanishi ,  Kota Manabe ,  Nobuyuki Kitamura ,  Takahiko Hasegawa

发明人： Hiroyuki Imanishi ,  Kota Manabe ,  Nobuyuki Kitamura ,  Takahiko Hasegawa

IPC分类号： H02M3/335

CPC分类号： H02M3/1584 ,  B60L11/1881 ,  B60L15/007 ,  B60L2210/40 ,  B60L2270/147 ,  Y02T10/645 ,  Y02T10/7241 ,  Y02T90/34

摘要： A driving frequency setting portion is provided. The driving frequency setting portion sets a switching frequency of a switching element on the basis of a notification from a driving phase number switching portion. A ripple current detected by a current sensor is in inverse proportion to inductance of reactor. Since a ripple current becomes the largest in the single-phase driving, in this embodiment, considering both the ripple current and switching loss, a switching frequency for the single-phase driving is set higher than a switching frequency for multiphase driving.

摘要翻译： 提供驱动频率设定部。 驱动频率设定部根据来自驱动相位数切换部的通知设定开关元件的开关频率。 由电流传感器检测到的纹波电流与电抗器的电感成反比。 由于在单相驱动中纹波电流变得最大，因此在本实施方式中，考虑到纹波电流和开关损耗两者，将单相驱动的开关频率设定为高于多相驱动的开关频率。

公开(公告)号：US08653802B2

公开(公告)日：2014-02-18

申请号：US13582853

申请日：2011-02-16

申请人： Takahiko Hasegawa ,  Kota Manabe ,  Toshihiko Minamii

发明人： Takahiko Hasegawa ,  Kota Manabe ,  Toshihiko Minamii

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M1/34 ,  H02M2001/342 ,  H03K5/26 ,  H03K17/0812 ,  Y02B70/1491

摘要： A chopper circuit includes an input unit that inputs a main turn-on signal for turning on a main switching element and an auxiliary turn-on signal for turning on an auxiliary switching element; and a prohibiting unit that prohibits the main switching element from turning on unless the auxiliary turn-on signal is input.

摘要翻译： 斩波电路包括输入单元，其输入用于接通主开关元件的主导通信号和用于接通辅助开关元件的辅助接通信号; 以及禁止主开关元件开启的禁止单元，除非输入辅助接通信号。

公开(公告)号：US08609289B2

公开(公告)日：2013-12-17

申请号：US12810116

申请日：2008-12-11

申请人： Takahiko Hasegawa ,  Kota Manabe

发明人： Takahiko Hasegawa ,  Kota Manabe

IPC分类号： H01M8/04

CPC分类号： B60L11/1887 ,  B60L3/0023 ,  B60L11/1892 ,  H01M8/04604 ,  H01M8/04664 ,  H01M16/003 ,  H01M2008/1095 ,  Y02T90/34

摘要： Provided is a fuel cell system that can suitably control a voltage converter in response to a judgment that an abnormal condition occurs in a power detection unit that detects a power passing through the voltage converter. The fuel cell system has: a first power detection unit that estimates an effective value of a converter input power by multiplying the converter input power, which is obtained from a battery voltage and a battery current, by a converter efficiency; a second power detection unit that estimates a converter output power from a fuel cell voltage, a fuel cell current and a driving motor load power; and a third power detection unit that estimates a converter flowing power from a current of a reactor measured by a current sensor (shown in a separate drawing). The fuel cell system also has similar detection units for current, and using one of the detection units or a combination of some of them, specifies a malfunctioning sensor and prohibits correction of parameters.

摘要翻译： 提供一种燃料电池系统，其能够响应于检测到通过电压转换器的电力的功率检测单元中发生异常情况而适当地控制电压转换器。 燃料电池系统具有：第一功率检测单元，其通过将从电池电压和电池电流获得的转换器输入功率乘以转换器效率来估计转换器输入功率的有效值; 第二功率检测单元，其从燃料电池电压，燃料电池电流和驱动电机负载功率估计转换器输出功率; 以及第三功率检测单元，其估计从由电流传感器测量的电抗器的电流（图示在单独的图中）流过功率的转换器。 燃料电池系统还具有用于电流的类似检测单元，并且使用检测单元之一或其中的一个检测单元指定故障传感器并禁止参数校正。

公开(公告)号：US08268495B2

公开(公告)日：2012-09-18

申请号：US12303518

申请日：2007-08-16

申请人： Kota Manabe ,  Takeshi Maenaka ,  Takahiko Hasegawa

发明人： Kota Manabe ,  Takeshi Maenaka ,  Takahiko Hasegawa

IPC分类号： G01N27/416

CPC分类号： H01M8/04649 ,  H01M8/0488 ,  H01M2250/20 ,  Y02T90/32

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。

公开(公告)号：US08111056B2

公开(公告)日：2012-02-07

申请号：US12442438

申请日：2007-10-01

申请人： Kota Manabe ,  Takahiko Hasegawa ,  Hiroyuki Imanishi

发明人： Kota Manabe ,  Takahiko Hasegawa ,  Hiroyuki Imanishi

IPC分类号： G05F1/59

CPC分类号： H02M3/1582 ,  B60L11/1887 ,  B60R16/03 ,  H02J7/34 ,  H02J2001/004 ,  H02M3/1584 ,  Y02T90/34

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. Two differential ammeters are placed on three reactors corresponding to the three converter circuits. A control unit includes a passing electric power calculation module which calculates electric power passing through the converter device on the basis of detected values of the two differential ammeters, an electric power equalization module which performs equalization of passing electric power between the respective converter circuits which constitute the converter device, a module for changing the number of drive phases which changes the number of drive phases of the converter device in response to the passing electric power, and a voltage conversion control module which controls the converter device and executes a desired voltage conversion.

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。 两个差分电流表放置在对应于三个转换器电路的三个电抗器上。 控制单元包括通过电力计算模块，其基于两个差分电流表的检测值来计算通过转换器装置的电力;电力均衡模块，其在构成的各个转换器电路之间进行通过电力的均衡 转换器装置，用于改变响应于通过电力而改变转换器装置的驱动相位数的驱动相位数的模块，以及控制转换器装置并执行所需电压转换的电压转换控制模块。

公开(公告)号：US08050065B2

公开(公告)日：2011-11-01

申请号：US12517229

申请日：2008-01-18

申请人： Takahiko Hasegawa ,  Kota Manabe

发明人： Takahiko Hasegawa ,  Kota Manabe

IPC分类号： H02M7/00

CPC分类号： H02M3/1582 ,  B60L11/1881 ,  B60L11/1892 ,  H02M3/1584 ,  Y02T90/34

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。

公开(公告)号：US20100273072A1

公开(公告)日：2010-10-28

申请号：US12810116

申请日：2008-12-11

申请人： Takahiko Hasegawa ,  Kota Manabe

发明人： Takahiko Hasegawa ,  Kota Manabe

IPC分类号： H01M8/04

CPC分类号： B60L11/1887 ,  B60L3/0023 ,  B60L11/1892 ,  H01M8/04604 ,  H01M8/04664 ,  H01M16/003 ,  H01M2008/1095 ,  Y02T90/34

摘要： Provided is a fuel cell system that can suitably control a voltage converter in response to a judgment that an abnormal condition occurs in a power detection unit that detects a power passing through the voltage converter. The fuel cell system has: a first power detection unit that estimates an effective value of a converter input power by multiplying the converter input power, which is obtained from a battery voltage and a battery current, by a converter efficiency; a second power detection unit that estimates a converter output power from a fuel cell voltage, a fuel cell current and a driving motor load power; and a third power detection unit that estimates a converter flowing power from a current of a reactor measured by a current sensor (shown in a separate drawing). The fuel cell system also has similar detection units for current, and using one of the detection units or a combination of some of them, specifies a malfunctioning sensor and prohibits correction of parameters.

摘要翻译： 提供一种燃料电池系统，其能够响应于检测到通过电压转换器的电力的功率检测单元中发生异常情况而适当地控制电压转换器。 燃料电池系统具有：第一功率检测单元，其通过将从电池电压和电池电流获得的转换器输入功率乘以转换器效率来估计转换器输入功率的有效值; 第二功率检测单元，其从燃料电池电压，燃料电池电流和驱动电机负载功率估计转换器输出功率; 以及第三功率检测单元，其估计从由电流传感器测量的电抗器的电流（图示在单独的图中）流过功率的转换器。 燃料电池系统还具有用于电流的类似检测单元，并且使用检测单元之一或其中的一个检测单元指定故障传感器并禁止参数校正。