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    • 17. 发明授权
    • System for controlling electromotive force of motor of electric vehicle
    • 电动汽车电动机电动势控制系统
    • US06459167B1
    • 2002-10-01
    • US09514325
    • 2000-02-28
    • Hidenori Yamanashi
    • Hidenori Yamanashi
    • H02H902
    • B60L3/06H02H9/001Y02T10/7258
    • In a system for controlling electromotive force of a motor of an electric vehicle, an intelligent-power switch unit (IPS1) is connected to a power supply line (10) between a battery (4) and a motor controller (7) in parallel with a main relay (6) instead of a precharge circuits having mechanical relays and charge resistors. The intelligent-power switch unit (IPS1) mainly has an electric-power-supply control unit including a MOSFET (QA) serving as a semiconductor switching device, and is integrated in one chip structure. Accordingly, the cost and size can be reduced, and damage of the motor controller (7) caused from a rush current occurring when electric power has been supplied can effectively be prevented.
    • 在用于控制电动车辆的电动机的电动势的系统中,智能电力开关单元(IPS1)与电池(4)和电动机控制器(7)之间的电源线(10)并联连接 主继电器(6)代替具有机械继电器和充电电阻器的预充电电路。 智能电源开关单元(IPS1)主要具有包括用作半导体开关器件的MOSFET(QA)的电力供应控制单元,并且集成在一个芯片结构中。 因此,可以有效地防止成本和尺寸的降低,并且能够有效地防止由供电时发生的冲击电流引起的电动机控制器(7)的损坏。
    • 19. 发明授权
    • Battery charging apparatus and full-charging detecting method
    • 电池充电装置和全充电检测方法
    • US06232746B1
    • 2001-05-15
    • US09610366
    • 2000-07-05
    • Hidenori Yamanashi
    • Hidenori Yamanashi
    • H02J700
    • G01R31/3662G01R31/006H02J7/0047H02J2007/0049
    • A battery charging apparatus 1 includes a full-charging detecting system 11. While a battery is charged, the full-charging detecting system operates as follows. A charging current supplied from an DC power source is detected. The internal impedance is computed on the basis of the charging current thus detected and charging voltage of the DC power source. The full-charging of the battery is detected on the basis of the comparison between the internal impedance thus computed and a prescribed value. In this configuration, even when the full-charging capacity varies owing to the degradation of the battery, the full-charged state of the battery can be detected precisely.
    • 电池充电装置1包括全充电检测系统11.当电池充电时,全充电检测系统如下操作。 检测从直流电源供给的充电电流。 基于这样检测的充电电流和直流电源的充电电压来计算内部阻抗。 基于这样计算的内部阻抗与规定值的比较来检测电池的充满电。 在该结构中,即使由于电池的劣化而导致满充电容量变化,也可以精确地检测电池的满充电状态。