Power transmission apparatus and vehicle using power transmission apparatus
    101.
    发明授权
    Power transmission apparatus and vehicle using power transmission apparatus 失效
    电力传输装置和使用电力传输装置的车辆

    公开(公告)号:US06360625B1

    公开(公告)日:2002-03-26

    申请号:US09538272

    申请日:2000-03-30

    IPC分类号: F16H302

    摘要: The invention provides a power transmission apparatus having a reduced power transmission loss. In the power transmission apparatus, an input shaft side variable pitch circle gear, an output shaft side variable pitch circle gear and a cycloid sliding gear which have a shape accumulated by a cycloid gear in which a pitch circle continuously changes are meshed with each other. The cycloid sliding gear slides and an engagement position thereof changes, thereby changing a radius of an engagement pitch circle of the gear so as to change a shift ratio.

    摘要翻译: 本发明提供了一种功率传递损失减小的动力传动装置。 在动力传递装置中,具有由摆轮连续变化的摆线齿轮累积的形状的输入轴侧可变节圆齿轮,输出轴侧可变节圆齿轮和摆线滑动齿轮彼此啮合。 摆线滑动齿轮滑动并且其接合位置发生变化,由此改变齿轮的啮合节圆的半径以改变换档比。

    Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle
    102.
    发明授权
    Method of estimating field pole position of synchronous motor, motor controller, and electric vehicle 有权
    同步电机,电机控制器和电动车辆的励磁极位置估算方法

    公开(公告)号:US06320349B1

    公开(公告)日:2001-11-20

    申请号:US09371046

    申请日:1999-08-10

    IPC分类号: H02P528

    摘要: A power corresponding to an A/C voltage command id1* is applied in the d-axis direction of rotational coordinates of a stopped synchronous motor via a current control unit, a three-phase converting unit, and a power converter. Further, by using “an amplitude value of a current iq′ in the q-axis direction of the rotational coordinates generated in response to the A/C voltage command id1*” which is fed back and detected via a current detector and a dq converting unit, a field pole position estimation value &thgr;{circumflex over ( )} is converged. The field pole position is estimated by using the converged field pole position estimation value &thgr;{circumflex over ( )} as a true value of the field pole position &thgr; of the synchronous motor.

    摘要翻译: 通过电流控制单元,三相转换单元和功率转换器,在停止的同步电机的旋转坐标的d轴方向上施加与A / C电压指令id1 *相对应的功率。 此外,通过使用“响应于通过电流检测器反馈并检测的A / C电压指令id1 *”产生的旋转坐标的q轴方向上的电流iq的振幅值,以及dq转换 单位,场极位置估计值θ{circumflex over()}被收敛。 通过使用收敛场极点位置估计值θ{circumflex over()}来估计场极位置作为同步电动机的场极位置theta的真实值。

    Control system for electric vehicle and control method therefor in which
an inverter relay is controlled at the time of its re-closing after
being disconnected
    104.
    发明授权
    Control system for electric vehicle and control method therefor in which an inverter relay is controlled at the time of its re-closing after being disconnected 失效
    电动车辆控制系统及其控制方法,其中逆变器继电器在断开后重新关闭时被控制

    公开(公告)号:US5877601A

    公开(公告)日:1999-03-02

    申请号:US845792

    申请日:1997-04-25

    摘要: In an electric vehicle having a synchronous motor as the driving source, a control system and a control method for the electric vehicle can prevent over current in the main circuit or over charging of the battery at the re-closing of an opened inverter relay and is always capable of operating the power-train system in a better condition. A control method for an electric vehicle having an inverter for supplying a direct current electric power from a battery to the synchronous motor, a smoothing capacitor, connected to the inverter in parallel for smoothing the direct current electric power, an inverter control circuit and an inverter relay for connecting and disconnecting the inverter and the smoothing capacitor to and from the battery. The inverter is controlled so as to prevent current from flowing into or flowing out of the inverter until the re-closing operation of the inverter relay is completed when the opened inverter relay is re-closed.

    摘要翻译: 在具有同步电动机作为驱动源的电动汽车中,用于电动车辆的控制系统和控制方法可以防止在主回路中的过电流或在断开的逆变器继电器的再闭合时对电池的过充电,并且是 总是能够在更好的条件下操作动力传动系统。 一种用于具有从电池向同步电动机提供直流电力的逆变器的电动车辆的控制方法,并联连接到逆变器以平滑直流电力的平滑电容器,逆变器控制电路和逆变器 用于连接和断开逆变器和平滑电容器与电池的连接。 控制逆变器,以防止电流流入或流出逆变器,直到开启的逆变器继电器被重新闭合,直到逆变器继电器的再闭合动作完成为止。

    Frequency dependent current control system for an AC motor
    105.
    发明授权
    Frequency dependent current control system for an AC motor 失效
    用于交流电机的频率相关电流控制系统

    公开(公告)号:US5841263A

    公开(公告)日:1998-11-24

    申请号:US859087

    申请日:1997-05-20

    摘要: In a method and apparatus for motor control in an electric vehicle, current feedback control from an AC motor is performed using a digital arithmetic unit. The motor control equipment includes a power converter having a maximum output frequency of at least 500 Hz for driving the AC motor, and the digital arithmetic unit outputs an AC voltage command to the power converter based on current feedback from the AC motor up to the maximum output frequency of the power converter. The digital arithmetic unit includes a first subtractor for calculating the deviation between a detected value and a command value for the d-axis current, and a second subtractor for calculating the deviation between a detected value and a command value for the q-axis current. A phase calculator calculates a d-axis phase corresponding to the resistance and reactance components of the impedance of the d-axis, and a q-axis phase corresponding to the resistance components of the impedance of the q-axis. A voltage control calculator calculates control signals for the d- and q-axis voltages, due to the d-axis current deviation and the q-axis current deviation, based on the d-axis phase and the q-axis phase. The AC voltage command is output to the power converter based on the d- and q- axis voltage control signals.

    摘要翻译: 在电动汽车的电动机控制方法和装置中,使用数字运算装置进行来自交流电动机的电流反馈控制。 所述电动机控制装置具有驱动所述交流电动机的最大输出频率为500Hz以上的功率转换器,所述数字运算单元根据来自所述交流电动机的电流反馈向所述功率变换器输出交流电压指令,直到最大值 功率转换器的输出频率。 数字运算单元包括:第一减法器,用于计算检测值与d轴电流的指令值之间的偏差;以及第二减法器,用于计算检测值与q轴电流的指令值之间的偏差。 相位计算器计算与d轴的阻抗的电阻和电抗分量相对应的d轴相位和与q轴的阻抗的电阻分量相对应的q轴相位。 基于d轴相位和q轴相位,由于d轴电流偏差和q轴电流偏差,电压控制计算器计算d轴和q轴电压的控制信号。 交流电压指令根据d轴和q轴电压控制信号输出到功率转换器。

    Electric vehicle control system
    107.
    发明授权
    Electric vehicle control system 失效
    电动车控制系统

    公开(公告)号:US5414339A

    公开(公告)日:1995-05-09

    申请号:US122295

    申请日:1993-09-17

    摘要: An electric vehicle control system for driving a battery powered motor with use of power inverters. First and second inverters are connected with the respective three-phase primary windings of an induction motor. If one of the inverters fails, failure detection circuits detect it, and a control unit stops the failed inverter and allows the other normal inverter to drive the induction motor to move the electric vehicle. Driving the single motor with a plurality of power inverters allows the electric vehicle to move and run even if one of the power inverters fails.

    摘要翻译: 一种电动车辆控制系统,用于使用电力逆变器驱动电池供电的电动机。 第一和第二逆变器与感应电动机的相应的三相初级绕组连接。 如果其中一台逆变器发生故障,故障检测电路就会检测到故障,控制单元停止变频器故障,并允许其他正常变频器驱动异步电动机来移动电动车辆。 使用多个电力逆变器驱动单个电动机允许电动车辆即使其中一个电力逆变器故障也移动和运行。