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    • 3. 发明授权
    • DC apparatus and vehicle using the same
    • 直流设备和使用其的车辆
    • US06633495B2
    • 2003-10-14
    • US10101529
    • 2002-03-20
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • Seiji IshdaToshiaki OkuyamaTetsuo KojimaKiyoshi NakataAkira Horie
    • H02M324
    • H02M1/143
    • The voltage applied to a power converter is detected by a voltage detector, a function generator produces a voltage proportional to this detected voltage, and a high-pass filter detects an AC component superimposed on the voltage. An adder adds a bias voltage to this AC component, and an adder adds the output from the adder and the output from the function generator. The output from the adder is compared with a triangular wave produced from a rectangular wave generator, and a switching element is controlled to make switching operation according to the compared result. When a DC current is decreased by the AC component, a resistance current Ib is increased so that the AC components superimposed on the current and resistance current can be cancelled out.
    • 施加到功率转换器的电压由电压检测器检测,功能发生器产生与该检测电压成比例的电压,高通滤波器检测叠加在电压上的AC分量。 加法器向该AC分量加上偏置电压,加法器将来自加法器的输出和来自函数发生器的输出相加。 将来自加法器的输出与由矩形波发生器产生的三角波进行比较,并且根据比较结果控制开关元件进行开关操作。 当直流电流被交流分量降低时,电阻电流Ib增加,从而可以消除叠加在电流和电阻电流上的交流分量。
    • 4. 发明授权
    • Control apparatus of electric vehicle
    • 电动车控制装置
    • US06456909B1
    • 2002-09-24
    • US09651721
    • 2000-08-30
    • Motomi ShimadaTetsuo KojimaKiyoshi NakataEiichi ToyotaToshihiko Sekizawa
    • Motomi ShimadaTetsuo KojimaKiyoshi NakataEiichi ToyotaToshihiko Sekizawa
    • B60L700
    • B60L7/26B60L2200/26Y02T10/7258
    • To determine the timing of the electrical brake for completely stopping in electrical braking control, and also to achieve both sure stopping and good riding comfort in an electric vehicle powered by the motor by decreasing the braking force at a prescribed rate of change, the torque of the electric motor is controlled by controlling the power converter which powers the motor using a power converter controller. The deceleration of the motor is computed based on the detected speed of the electric motor which is as an output of the speed detection means, the subsequent speed of the electric motor is estimated based on the detected speed and the deceleration rate of the electric motor at the time the detected rotational speed of the electric motor falls below a prescribed speed, and torque control is carried out using an electric power converter controller, based on the estimated speed.
    • 为了确定在电制动控制中完全停止的电动制动器的时机,并且通过以规定的变化率减小制动力,也能够实现由电动机驱动的电动车辆的确定停止和良好的乘坐舒适性, 通过控制使用功率转换器控制器为电机供电的功率转换器来控制电动机。 基于作为速度检测装置的输出的电动机的检测速度来计算电动机的减速度,基于电动机的检测速度和减速度来估计电动机的后续速度 电动机的检测转速下降到低于规定速度的时间,并且使用电力转换控制器基于估计速度进行转矩控制。
    • 9. 发明授权
    • Power conversion system
    • 电力转换系统
    • US5177677A
    • 1993-01-05
    • US489324
    • 1990-03-06
    • Kiyoshi NakataAkira KimuraYouji TakahashiYoshio TsutsuiKiyoshi NakamuraAtsushi Abe
    • Kiyoshi NakataAkira KimuraYouji TakahashiYoshio TsutsuiKiyoshi NakamuraAtsushi Abe
    • H02J7/14H02M7/219
    • H02M7/219H02J7/1492Y02T10/92
    • A power conversion system is disclosed in which a direct current is taken out of an AC power supply of variable frequency and variable voltage through a PWM converter in such a manner that in a region of low source voltage, the converter input current is limited to a predetermined value to maximize the DC power taking the voltage drop of the power supply into consideration with the power factor of "1" of the power supply, and when the current reaches an allowable maximum, it is limited to that value. In a region of high source voltage, on the other hand, the quadrature component of the input voltage applied to the source voltage is controlled preferentially in a manner to control the converter input voltage below a predetermined value, thus making it possible to secure the maximum power available from the converter over the entire range of operation. If a battery is connected to the DC side, a cooperative operation is made possible while the battery is charged properly.
    • 公开了一种电力转换系统,其中通过PWM转换器从可变频率和可变电压的AC电源中取出直流电流,使得在低电源电压的区域中,转换器输入电流被限制为 在电源的功率因数为“1”的情况下考虑电源的电压降使DC直流功率最大化,并且当电流达到容许最大值时,限制为该值。 另一方面,在高电源电压的区域,以优先控制施加于源极电压的输入电压的正交分量,以便将转换器输入电压控制在预定值以下,从而可以确保最大值 在整个操作范围内可以从转换器获得电力。 如果电池连接到直流侧,则在电池正常充电时可以进行协作操作。