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    • 2. 发明申请
    • BACKUP POWER FOR OVERVOLTAGE PROTECTION FOR ELECTRIC VEHICLE
    • 备用电动机用于过电压保护
    • US20120235613A1
    • 2012-09-20
    • US13048858
    • 2011-03-15
    • Fengtai HUANG
    • Fengtai HUANG
    • H02P6/14
    • B60L3/0092H02M2001/0006
    • In a first aspect, the invention is directed to a circuit for powering a gate drive for an electric motor for a vehicle with an electric motor. The circuit provides a primary power supply and a secondary power supply that powers the gate drive in the event the primary power supply fails. The primary power supply may draw power from the 12V battery on the vehicle. The secondary power supply may draw power from a high voltage battery pack on the vehicle that is normally used to provide power to the electric motor. By providing the secondary power supply to the gate drive, a 3-phase short can be applied to the motor in the event that it is needed as a safety measure even if there is a failure in the primary power supply.
    • 在第一方面,本发明涉及一种用于为具有电动马达的车辆用电动机的门驱动器供电的电路。 该电路提供主电源和次级电源,在主电源出现故障的情况下为门驱动器供电。 主电源可以从车上的12V电池吸取电力。 二次电源可以从通常用于向电动机供电的车辆上的高压电池组提供电力。 通过向栅极驱动器提供次级电源,即使在主电源出现故障时,也可以将电动机用作三相短路作为安全措施。
    • 5. 发明授权
    • Circuit configuration for permanent magnet synchronous motor control
    • 永磁同步电机控制电路配置
    • US06894450B2
    • 2005-05-17
    • US10346724
    • 2003-01-16
    • Bing ChengDuo DengFengtai Huang
    • Bing ChengDuo DengFengtai Huang
    • H02P1/18H02P1/46H02P6/06H02P25/02
    • H02P6/06H02P25/03
    • Circuits and methods for use with an integrated circuit chip having internal back EMF estimation to control a permanent magnet synchronous motor includes an AC current feedback circuit, a scaling circuit, and a current regulator. Additionally, a speed regulator may be employed. In one embodiment, during operation at very low speed, the speed regulator is in an open loop control mode due to a back EMF detection limitation of the IC chip, and only the current regulator is active. A feedback current signal, together with a user-defined command current signal, serves the input of the current regulator, which controls the AC motor current and drives the motor speed from standstill. Once the motor speed reaches a certain level, the measured back EMF from the IC chip is sufficient to estimate the motor speed, which is compared with a user-defined command speed, and an error of the these two signals provides the input of a speed regulator.
    • 与具有用于控制永磁同步电动机的内部反电动势估计的集成电路芯片一起使用的电路和方法包括AC电流反馈电路,缩放电路和电流调节器。 另外,可以采用速度调节器。 在一个实施例中,在以非常低的速度操作期间,由于IC芯片的反电动势检测限制,速度调节器处于开环控制模式,并且仅电流调节器有效。 反馈电流信号连同用户定义的指令电流信号一起用于电流调节器的输入,电流调节器控制交流电动机电流并驱动电机速度停止。 一旦电机速度达到一定水平,来自IC芯片的测量的反电动势足以估计电机速度,这与用户定义的指令速度进行比较,并且这两个信号的误差提供了速度的输入 调节器