CONTROL DEVICE FOR MOTOR DRIVE SYSTEM AND VEHICLE HAVING SAME
    324.
    发明公开
    CONTROL DEVICE FOR MOTOR DRIVE SYSTEM AND VEHICLE HAVING SAME 有权
    FAHRZEUG DAMIT的STEUERVORRICHTUNGFÜREIN ANTRIEBSSYSTEM

    公开(公告)号:EP2562928A1

    公开(公告)日:2013-02-27

    申请号:EP10850212.1

    申请日:2010-04-21

    Abstract: A control device (200) for a motor drive system (100) including an AC motor (MG1) having a magnet in a rotor, a converter (120), and an inverter (130) generates a step-up command value for the converter (120) based on a torque command value for the AC motor (MG1). The control device (200) determines whether or not to carry out field-weakening control for increasing a current in a direction weakening force of a magnet that is supplied from the inverter (130) to the AC motor (MG1), based on the step-up command value and a state of drive of the AC motor (MG1). When field-weakening control should be carried out and when an absolute value of the torque command value is smaller than a threshold value, the control device (200) further increases the generated step-up command value. By doing so, an amount of a field-weakening current can be decreased and therefore efficiency of the motor drive system (100) can be improved.

    Abstract translation: 一种用于电动机驱动系统(100)的控制装置(200),包括在转子中具有磁体的AC电动机(MG1),转换器(120)和逆变器(130),为转换器产生升压指令值 (120)基于用于交流电动机(MG1)的转矩指令值。 控制装置(200)根据步骤(200),判断是否进行减弱磁场控制,以增加从逆变器(130)供给到电动机(MG1)的磁体的弱化方向的电流 - 指令值和AC电动机(MG1)的驱动状态。 当进行磁场弱化控制时,当转矩指令值的绝对值小于阈值时,控制装置(200)进一步增加所产生的升压指令值。 通过这样做,能够减少弱磁化电流的量,能够提高电动机驱动系统(100)的效率。

    ELECTRIC POWER STEERING APPARATUS
    326.
    发明公开
    ELECTRIC POWER STEERING APPARATUS 有权
    电动转向装置

    公开(公告)号:EP2251247A1

    公开(公告)日:2010-11-17

    申请号:EP09716891.8

    申请日:2009-03-05

    Abstract: There is provided a controller for a steering device that makes it possible to prevent sudden ceasing of steering assisting power by effectively utilizing an auxiliary power source. An electric power steering device that generates steering assist force by a motor includes a battery for supplying electric power to the motor, an auxiliary power source that supplies the motor with electric power, and a control circuit for controlling a power supply to the motor. In the event of a breakdown of the battery, the control circuit adjusts a power supply to the motor from the auxiliary power source according to an amount of energy remaining in the auxiliary power source so as to reduce steering assist force.

    Abstract translation: 提供了一种用于转向装置的控制器,其能够通过有效地利用辅助电源来防止转向辅助力的突然停止。 通过电动机产生转向辅助力的电动转向装置包括用于向电动机供给电力的电池,向电动机供给电力的辅助电源以及用于控制对电动机的电力供给的控制电路。 在电池发生故障的情况下,控制电路根据辅助电源中剩余的能量的量来调整从辅助电源到电机的电力供应,以减小转向辅助力。

    Motor controller
    327.
    发明公开
    Motor controller 审中-公开
    电机控制器

    公开(公告)号:EP2020334A3

    公开(公告)日:2009-02-25

    申请号:EP08161512.2

    申请日:2008-07-31

    Abstract: A motor controller (8) for an axial-gap motor permits a reduced size of the entire system of including a drive circuit and a power source of the motor, reduced cost, and higher reliability to be achieved by controlling the energization mode of the motor. The motor controller (8) has a torque command determiner which inputs a first DC voltage to a first inverter (32a) at least either when a rotor (11) is at a halt or when the number of revolutions of the rotor (11) is a predetermined number of revolutions or less, supplies a field axis current for changing the magnetic flux of a field of the rotor (11) to a first stator (12a) from the first inverter (32a) such that the amount of energization is temporally changed, converts an induced voltage developed in a second stator (12b) by the supplied field axis current into a second DC voltage by a second inverter (32b), and outputs the second DC voltage, thereby charging a second battery.

    Abstract translation: 通过控制马达的通电模式,用于轴向间隙马达的马达控制器(8)允许包括马达的驱动电路和电源的整个系统的尺寸减小,成本降低以及可靠性更高 。 电动机控制器(8)具有转矩指令决定部,该转矩指令决定部至少在转子(11)停止时或者转子(11)的转速为转速时将第一直流电压输入至第一变换器(32a) 预定转数或更少时,将用于改变转子(11)的磁场的磁通量的场轴电流从第一逆变器(32a)提供给第一定子(12a),使得通电量暂时改变 通过第二逆变器(32b)将由第二定子(12b)产生的感应电压通过所提供的场轴电流转换成第二直流电压,并且输出第二直流电压,从而对第二电池充电。

    VOLTAGE CONVERSION DEVICE
    329.
    发明公开
    VOLTAGE CONVERSION DEVICE 有权
    张力装置实现

    公开(公告)号:EP1656728A1

    公开(公告)日:2006-05-17

    申请号:EP05710282.4

    申请日:2005-02-09

    Abstract: A control device (30) calculates an upper limit value of a duty ratio (DR_Ulim) according to a voltage (Vm) from a voltage sensor (13) and a threshold voltage (OVb) when an overvoltage is determined to have been applied to a battery (B), and determines a duty ratio (DR) for providing switching control to NPN transistors (Q1, Q2) in a range lower than the calculated upper limit value of the duty ratio (DR_Ulim). The control device (30) uses the determined duty ratio (DR) to provide switching control to the NPN transistors (Q1, Q2). Then, an up-converter (12) converts a direct current voltage (Vb) from the battery (B) into the output voltage (Vm) such that an overvoltage is not applied to the battery (B).

    SYSTEM AND METHOD FOR DRIVING AN ELECTRIC VEHICLE
    330.
    发明公开
    SYSTEM AND METHOD FOR DRIVING AN ELECTRIC VEHICLE 审中-公开
    系统和方法驱动电动车

    公开(公告)号:EP1365936A2

    公开(公告)日:2003-12-03

    申请号:EP02707732.0

    申请日:2002-02-06

    Abstract: A system and method for driving an electric vehicle is provided. The system has, for example, a power source generating a voltage, a voltage converter, a control system, and one or more motors for driving or propelling the vehicle. The voltage converter is configured to accept an input voltage and generate an output voltage, which is different from the input voltage. The power source provides the input voltage to the voltage converter. A switch is further provided to switch the delivery of power to the control system between a power source voltage and an increased voltage derived from the voltage converter.

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