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    • 4. 发明授权
    • Protection of motor drive systems from current sensor faults
    • 保护电机驱动系统免受电流传感器故障的影响
    • US08867181B2
    • 2014-10-21
    • US13244052
    • 2011-09-23
    • S. M. Nayeem HasanSteven E. SchulzDavid P. Tasky
    • S. M. Nayeem HasanSteven E. SchulzDavid P. Tasky
    • H02H5/04H02H3/00G01R31/34H02P21/00H02H7/00H02P29/02
    • H02P29/022H02H7/00H02P21/22H02P29/0243H02P29/032
    • Methods and apparatus are provided for detecting a phase current sensor fault in a multi-phase electrical motor. The method comprises, receiving an input torque command T* and measuring a set of feedback signals of the motor including a phase current Ix for each of the phases of the motor, generating direct and quadrature command phase currents Id*, Iq* for the motor corresponding to a value of the input torque command T*, determining a total command current Is=[(Iq*)2+(Id*)2]½, generating a negative sequence current Ineg, where for three phases Ineg=(⅓)[Ia+(α2)Ib+(α)Ic], where α=ej2π/3, combining Ineg and Is to provide a normalized negative sequence current Inn=Ineg/Is, comparing the normalized negative sequence current Inn to a predetermined threshold value INN* to determine the presence of a phase current sensor fault, and executing a control action when Inn>INN*.
    • 提供了用于检测多相电动机中的相电流传感器故障的方法和装置。 该方法包括:接收输入转矩指令T *并测量电动机的一组反馈信号,该电动机的每个相位包括相电流Ix,为电动机产生直接和正交指令相电流Id *,Iq * 对应于输入转矩指令T *的值,确定总指令电流Is = [(Iq *)2+(Id *)2] 1/2,产生负序电流Ineg,其中三相Ineg =(1/3) [Ia +(α2)Ib +(α)Ic],其中α= ej2&pgr; / 3,组合Ineg和Is,以提供归一化的负序电流Inn = Ineg / Is,将归一化负序电流Inn与预定阈值INN *确定相电流传感器故障的存在,并在Inn> INN *时执行控制动作。
    • 6. 发明授权
    • Method and apparatus for monitoring a high-voltage electrical circuit including a discharge circuit
    • 用于监视包括放电电路的高压电路的方法和装置
    • US08653841B2
    • 2014-02-18
    • US13464128
    • 2012-05-04
    • Li-Pen J. HoDavid P. Tasky
    • Li-Pen J. HoDavid P. Tasky
    • G01R31/00
    • B60L3/0007B60L3/0046B60L3/0069B60L3/04B60L2240/527
    • A high-voltage discharge circuit diagnostic system includes a high voltage DC link with a positive DC link and a negative DC link, a first resistor selectably connectable between the positive DC link and the negative DC link, and a second resistor connected between the positive DC link and the negative DC link. A control module connects the first resistor between the positive DC link and the negative DC link until the high voltage DC link discharges to a first voltage after which the control module disconnects the first resistor from between the positive DC link and the negative DC link to permit continued discharge of the high voltage DC link through the second resistor to a second voltage through an elapsed time period. The control module diagnoses a fault in the second resistor based upon the first voltage, the second voltage, and the elapsed time period.
    • 高压放电电路诊断系统包括具有正直流链路和负直流链路的高压直流链路,可选择地在正直流链路和负直流链路之间连接的第一电阻器和连接在正直流链路之间的第二电阻器 链路和负DC链路。 控制模块连接正直流链路和负直流母线之间的第一电阻,直到高压直流母线放电到第一电压,之后控制模块从正直流链路和负直流母线之间断开第一个电阻,以允许 通过第二电阻将高压直流母线继续放电至经过时间段的第二电压。 控制模块基于第一电压,第二电压和经过的时间周期来诊断第二电阻器中的故障。
    • 7. 发明授权
    • Power module active current management for efficiency improvement
    • 电源模块有效电流管理提高效率
    • US08600595B2
    • 2013-12-03
    • US12845804
    • 2010-07-29
    • Sean E. GleasonMohammad N. AnwarDavid P. TaskyShawn Scott HawkinsPeter J. Savagian
    • Sean E. GleasonMohammad N. AnwarDavid P. TaskyShawn Scott HawkinsPeter J. Savagian
    • B60L9/00
    • H02M7/53873B60L15/2045H02M2001/0032Y02T10/644Y02T10/645Y02T10/7283
    • A vehicle includes a motor, an alternating current (AC) power bus, a power inverter module (PIM), and a controller. The PIM includes a semiconductor die assembly with semiconductor power switches arranged in electrical parallel for delivering AC power to the motor via the bus. The controller determines an operating mode of the vehicle, selects and activates a designated one of the switches during a threshold low-current state of the PIM, and selects and activates all of the switches during a high-current state of the PIM. A PIM assembly for the vehicle includes the die assembly and controller. A method for optimizing energy efficiency of the vehicle includes providing the die assembly noted above, automatically determining the operating mode, and selecting and activating one of the switches when the operating mode corresponds to the threshold low-current state, and all of the electrical switches during the threshold high-current state of the PIM.
    • 车辆包括电动机,交流(AC)电力总线,电力逆变模块(PIM)和控制器。 PIM包括具有并联布置的半导体功率开关的半导体管芯组件,用于经由总线将电力传递给电动机。 控制器确定车辆的操作模式,在PIM的阈值低电流状态期间选择并激活指定的交换机,并且在PIM的大电流状态期间选择并激活所有交换机。 用于车辆的PIM组件包括模具组件和控制器。 一种用于优化车辆能量效率的方法包括提供上述模具组件,自动确定操作模式,以及当操作模式对应于阈值低电流状态时,选择并激活开关中的一个,并且所有电气开关 在PIM的阈值高电流状态期间。