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    • 1. 发明授权
    • Circuit for driving permanent-magnet synchronous motor using
proportional controller
    • 使用比例控制器驱动永磁同步电机的电路
    • US5656911A
    • 1997-08-12
    • US575624
    • 1995-12-20
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • H02P21/00H02K21/12H02P7/06H02P27/04H02P5/402
    • H02P21/06H02P21/0089H02P21/22
    • A driving device controls a permanent-magnet synchronous motor having a permanent magnet in its rotor using a voltage-type inverter supplying drive power for the synchronous motor, makes the torque of the synchronous motor and the d-axis current flowing in the synchronous motor in the direction of the magnetic flux generated by the permanent magnet approach their own command values, and performs weakening field control by decreasing the d-axis current. To perform the above described control without complicated d-axis current command value operations or temperature amendments to motor constants, the driving device includes a proportional controller for outputting a d-axis signal proportional to the deviation between a d-axis current detection value and a d-axis current command value for the motor. A d-axis voltage command value and a q-axis voltage command value are determined according to the d-axis signal and a q-axis signal obtained based on the deviation between a q-axis current detection value, which is a component in the direction normal to the magnetic flux, and the torque command value for the motor. A voltage command vector is obtained from the d-axis voltage command value and the q-axis voltage command value. The voltage command vector is PWM-converted and a voltage-type inverter control signal is generated.
    • 驱动装置使用向同步电动机供给驱动力的电压型逆变器来控制在其转子中具有永磁体的永磁同步电动机,使同步电动机的转矩和同步电动机中的d轴电流流入 由永久磁铁产生的磁通量的方向接近其自身的指令值,并通过减小d轴电流来进行弱磁场控制。 为了执行上述控制而没有复杂的d轴电流指令值操作或电机常数的温度修正,驱动装置包括一个比例控制器,用于输出与d轴电流检测值和 电机的d轴电流指令值。 d轴电压指令值和q轴电压指令值根据d轴信号和基于q轴电流检测值(q轴电流检测值) 方向垂直于磁通量,以及电机的转矩指令值。 从d轴电压指令值和q轴电压指令值得到电压指令矢量。 电压指令矢量进行PWM转换,产生电压型逆变器控制信号。
    • 2. 发明授权
    • Electric system for an electric vehicle
    • 电动汽车电气系统
    • US5466998A
    • 1995-11-14
    • US210021
    • 1994-03-18
    • Shigenori KinoshitaTakao YanaseKoetsu Fujita
    • Shigenori KinoshitaTakao YanaseKoetsu Fujita
    • B60L7/22B60L9/18B60L11/18H02P5/40G01R27/26
    • B60L7/22B60L2270/142
    • In an electric system for an electric vehicle, DC power of a main battery is converted into AC power by an inverter which has a power regenerative function. At startup, the system charges an input smoothing capacitor on the DC side of the inverter through an initial charging circuit with an initial charging switch and resistor. A main circuit switch that can stop current is connected between the main battery and the inverter. A rheostatic braking circuit with a rheostatic braking switch and a braking resistor is connected to the DC input side of the inverter for rheostatic breaking when required. Rheostatic braking takes over after regenerative braking when the main battery loses its power absorption capability, with the main circuit switch off. Semiconductors can be used as switches, and can be placed on a cooling body or modularized. Low-noise wires can be used to reduce noise.
    • 在电动汽车的电气系统中,通过具有电力再生功能的逆变器将主电池的直流电力转换为交流电力。 启动时,系统通过初始充电电路和初始充电开关和电阻对变频器直流侧的输入平滑电容充电。 主电池和逆变器之间连接有可以停止电流的主电路开关。 具有变阻器制动开关和制动电阻器的变阻器制动电路在需要时连接到变频器的直流输入侧用于变阻器断开。 当主电池失去其吸收能力,主电路关闭时,变频制动在再生制动后接管。 半导体可以用作开关,也可以放置在冷却体上或模块化。 可以使用低噪声电线来降低噪音。
    • 3. 发明授权
    • Electric system for electric vehicle
    • 电动汽车电气系统
    • US6066928A
    • 2000-05-23
    • US212499
    • 1998-12-15
    • Shigenori KinoshitaKoetsu FujitaJunichi Ito
    • Shigenori KinoshitaKoetsu FujitaJunichi Ito
    • B60L7/10B60L11/00B60L11/18H02P1/00B60K1/00
    • B60L11/005B60L11/1851B60L7/10H02P2209/01Y02T10/642Y02T10/7005Y02T10/7022Y02T10/705
    • An electric system for an electric vehicle includes a voltage type inverter that receives dc input voltage from a dc input circuit, and generates variable ac voltage of a variable frequency, and an ac motor including a plurality of windings each of which has one end connected to an ac output terminal of the voltage type inverter, the other ends of the windings being connected together to provide a neutral point of motor windings. A variable-voltage energy storage element is connected between the neutral point and a connecting point provided in the dc input circuit, and an on-vehicle dc power supply is connected to the opposite ends of the energy storage element or input terminals of the dc input circuit. The inverter performs switching operations in a zero-voltage vector mode, to operate as a chopper, so that power is transferred between the variable-voltage energy storage element, and the dc input side of the inverter.
    • 电动车用电气系统包括:电压型逆变器,其从直流输入电路接收直流输入电压,并生成可变频率的可变交流电压;以及交流电动机,其包括多个绕组,每个绕组的一端连接到 电压型逆变器的交流输出端子,绕组的另一端连接在一起以提供电动机绕组的中性点。 可变电压能量存储元件连接在中性点和直流输入电路中提供的连接点之间,并且车载直流电源连接到能量存储元件的相对端或直流输入的输入端 电路。 逆变器在零电压矢量模式下进行开关动作,作为斩波器动作,从而在可变电压蓄能元件与逆变器的直流输入侧之间传递功率。
    • 5. 发明授权
    • Magnet rotor for synchronous motor
    • 同步电机用磁铁转子
    • US5734216A
    • 1998-03-31
    • US564623
    • 1995-11-29
    • Hiyoshi YamadaShigenori KinoshitaTakao YanaseKenji EndoHiroyuki Hirano
    • Hiyoshi YamadaShigenori KinoshitaTakao YanaseKenji EndoHiroyuki Hirano
    • H02K1/27H02K15/03H02K21/00
    • H02K1/278H02K1/2733H02K15/03
    • A magnet rotor for a synchronous motor includes a yoke formed of a magnetic material. A generally cylindrical permanent magnet is disposed around the yoke magnet and has N and S poles alternately located in the circumferential direction of the permanent magnet. An adhesive is filled in the clearance between the outer peripheral surface of the yoke and the inner peripheral surface of the permanent magnet. The adhesive is hardened at a hardening temperature, which is around a maximum temperature encountered during operation of the motor to accomplish bonding between the yoke and the permanent magnet. The clearance between the yoke and the permanent magnet has a dimension L given by the following formula: L.gtoreq.(E.times..DELTA.L) / .sigma.s where E is a tensile elastic modulus of the adhesive; .DELTA.L is a change amount of the clearance upon thermal expansion or contraction; and .sigma.s is a tensile stress applied to the adhesive.
    • 用于同步电动机的磁体转子包括由磁性材料形成的磁轭。 一般为圆柱形的永久磁铁围绕轭磁铁设置,并且N和S极交替地位于永磁体的圆周方向上。 在磁轭的外周面和永磁体的内周面之间的间隙中填充有粘合剂。 粘合剂在固化温度下硬化,硬化温度约为马达操作期间遇到的最大温度,以实现轭和永磁体之间的粘合。 轭和永磁体之间的间隙具有由下式给出的尺寸L:L> / =(Ex DELTA L)/ sigma其中E是粘合剂的拉伸弹性模量; DELTA L是热膨胀或收缩时间隙的变化量; sigma是施加到粘合剂上的拉伸应力。