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    • 1. 发明授权
    • Insulation failure diagnosis apparatus and method of diagnosing insulation failure
    • 绝缘故障诊断装置及绝缘故障诊断方法
    • US09132733B2
    • 2015-09-15
    • US13554371
    • 2012-07-20
    • Masakazu TagoAtsuyuki HirumaHiroyasu Kudo
    • Masakazu TagoAtsuyuki HirumaHiroyasu Kudo
    • G01R31/08G01R31/02B60L3/00
    • B60L3/0069G01R31/025
    • An insulation failure diagnosis apparatus is provided which diagnoses presence/absence of insulation failure between a body of a vehicle and a connection path to a power supply for a traction unit. The apparatus includes a power converter circuit connected to the power supply and supplying power to an in-vehicle auxiliary unit, an outputting unit outputting an AC signal to the connection path, and a diagnosis unit diagnosing presence/absence of the insulation failure based on a current flowing through the connection path when the AC signal is outputted. The diagnosis unit includes a storage unit storing a determination value for determining the insulation failure or information for setting the determination value. The determination value or the information is obtained by measuring an electrical state quantity of the connection path depending on stray capacitance and is dielectric resistance of the connection path obtained when an AC signal is outputted to the connection path.
    • 提供了一种绝缘故障诊断装置,其诊断车体与绝缘故障之间是否存在与牵引单元的电源的连接路径。 该装置包括连接到电源并向车载辅助单元供电的功率转换器电路,向连接路径输出AC信号的输出单元,以及基于一个诊断单元诊断绝缘故障的存在/不存在的诊断单元 当AC信号输出时流过连接路径的电流。 诊断单元包括存储用于确定绝缘失败的确定值的存储单元或用于设置确定值的信息。 通过根据杂散电容测量连接路径的电气状态量来获得确定值或信息,并且当将AC信号输出到连接路径时获得的连接路径的介质电阻。
    • 8. 发明授权
    • Power converter for electric rotating machine
    • 电动旋转机用电源转换器
    • US08513907B2
    • 2013-08-20
    • US12833476
    • 2010-07-09
    • Taizo KondoMasakazu TagoHarumi Horihata
    • Taizo KondoMasakazu TagoHarumi Horihata
    • H02P6/14
    • H02P6/14H02M2001/008
    • A power converter for an electric rotating machine is provided which is designed to ensure a desired length of a current flywheel duration in which current is permitted to freewheel from the electric rotating machine even if the power converter is in a transient state or subjected to an unexpected change. The power converter is equipped with a controller and a switching circuit which is disposed between a power supply and windings of the electric rotating machine. The switching circuit has switches grouped into an upper and a lower arm. The controller works to control an off-operation of one of the switches of one of the upper and lower arm so as to produce a desired length of the current flywheel duration following turning off of the one of the switches, thereby minimizing a loss of rectification and avoiding the backflow of current from the power supply to the windings.
    • 提供一种用于旋转电机的功率转换器,其被设计成确保当前飞轮持续时间的期望长度,其中允许电流从电动旋转机器飞越,即使功率转换器处于暂态状态或经受意外 更改。 功率转换器配备有控制器和切换电路,其设置在电动机和电动旋转机器的绕组之间。 开关电路具有分组为上臂和下臂的开关。 控制器用于控制上臂和下臂中的一个的开关中的一个的断开操作,以便在关闭一个开关之后产生当前飞轮持续时间的期望长度,从而最小化整流损失 并避免电流从电源向绕组的回流。
    • 9. 发明申请
    • POWER CONVERTER FOR ELECTRIC ROTATING MACHINE
    • 电动转矩电机
    • US20110006710A1
    • 2011-01-13
    • US12833476
    • 2010-07-09
    • Taizo KONDOMasakazu TagoHarumi Horihata
    • Taizo KONDOMasakazu TagoHarumi Horihata
    • H02P6/14
    • H02P6/14H02M2001/008
    • A power converter for an electric rotating machine is provided which is designed to ensure a desired length of a current flywheel duration in which current is permitted to freewheel from the electric rotating machine even if the power converter is in a transient state or subjected to an unexpected change. The power converter is equipped with a controller and a switching circuit which is disposed between a power supply and windings of the electric rotating machine. The switching circuit has switches grouped into an upper and a lower arm. The controller works to control an off-operation of one of the switches of one of the upper and lower arm so as to produce a desired length of the current flywheel duration following turning off of the one of the switches, thereby minimizing a loss of rectification and avoiding the backflow of current from the power supply to the windings.
    • 提供一种用于旋转电机的功率转换器,其被设计成确保当前飞轮持续时间的期望长度,其中允许电流从电动旋转机器飞越,即使功率转换器处于暂态状态或经受意外 更改。 功率转换器配备有控制器和切换电路,其设置在电动机和电动旋转机器的绕组之间。 开关电路具有分组为上臂和下臂的开关。 控制器用于控制上臂和下臂中的一个的开关中的一个的断开操作,以便在关闭一个开关之后产生当前飞轮持续时间的期望长度,从而最小化整流损失 并避免电流从电源向绕组的回流。