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    • 7. 发明授权
    • Over-temperature protection circuit for power devices
    • 功率器件过热保护电路
    • US09024549B2
    • 2015-05-05
    • US13245260
    • 2011-09-26
    • Pingbo ShiDezhong Yang
    • Pingbo ShiDezhong Yang
    • H02P1/00H02P29/00H02P29/02
    • H02P29/0055H02P29/032H02P29/64
    • An over-temperature protection circuit for a direct current (DC) electric tool includes a current detecting circuit electrically coupled to a battery pack, a power device control circuit electrically coupled to an electric motor of the DC electric tool and a power device for controlling the power state of the circuit. A computation control circuit controls the power supply of the motor according to the circuit current value detected by the current detecting circuit. When the electric motor is not in a speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset first current value. When the electric motor is in the speed control state, the allowable current passing through the over-temperature protection circuit of the DC electric tool cannot exceed a preset second current value less than the first current value.
    • 用于直流(DC)电动工具的过热保护电路包括电耦合到电池组的电流检测电路,电连接到DC电动工具的电动机的电力设备控制电路和用于控制 电路的电源状态。 计算控制电路根据由电流检测电路检测的电路电流值来控制电动机的电源。 当电动机不处于速度控制状态时,通过直流电动工具的过热保护电路的允许电流不能超过预设的第一电流值。 当电动机处于速度控制状态时,通过直流电动工具的过热保护电路的允许电流不能超过小于第一电流值的预设的第二电流值。
    • 8. 发明申请
    • MOTOR CONTROL DEVICES AND METHODS
    • 电机控制装置和方法
    • US20140265949A1
    • 2014-09-18
    • US14213862
    • 2014-03-14
    • HONDA MOTOR CO., LTD.
    • Michael D. Oakley
    • H02H7/08H02H7/09
    • H02P29/0055H02P29/0241H02P29/60
    • A system and method for preventing damage to a controller of an electric motor in a vehicle from back electromotive force, the vehicle having a battery, includes monitoring, in a circuit path, a voltage and a rotational speed generated by back-driving the motor. If power is supplied to the controller by the battery, the method includes comparing the voltage to an upper voltage threshold, comparing the rotational speed to an upper rotational speed threshold, and, if the voltage exceeds the upper voltage threshold or the rotational speed exceeds the upper rotational speed threshold, clamping the circuit path to the battery to charge the battery with the voltage. The method is performed by an electronic controller that may detect the voltage and rotational speed via controller ports, sensor transmissions, and the like.
    • 一种用于防止由背电动势对车辆中的电动机的控制器的损坏的系统和方法,具有电池的车辆包括在电路路径中监视通过反向驱动电动机产生的电压和转速。 如果通过电池向控制器供电,则该方法包括将电压与上限电压阈值进行比较,将转速与上转速阈值进行比较,如果电压超过上限电压阈值或转速超过 上转速阈值,将电路的钳位电路与电池对电池充电。 该方法由可通过控制器端口,传感器传输等检测电压和转速的电子控制器执行。
    • 9. 发明授权
    • Motor control devices and methods
    • 电机控制装置及方法
    • US09425729B2
    • 2016-08-23
    • US14214076
    • 2014-03-14
    • HONDA MOTOR CO., LTD.
    • Michael D. OakleyDean A. Scott, Jr.Trevor Scott Whitten
    • H02P1/04H02P29/00
    • H02P29/0055H02P29/0241H02P29/60
    • A system and method for preventing thermal damage to an electric motor in a vehicle includes arrangements for monitoring the motor and detecting a cycle of the motor. If the cycle occurred within a predetermined increment time, a cycle count is incremented. If no cycle occurs for a predetermined decrement time, the cycle count is decremented if the cycle count is greater than zero. If the cycle count is at least equal to a cycle limit, power operation of the motor is deactivated for at least the decrement time. The method may include continuously calculating energy consumed by the motor and, if the energy consumed exceeds one or more allowable energy thresholds, setting the cycle count equal to the cycle limit. The method may further include detecting a failure condition and setting the cycle count equal to the cycle limit when the failure condition is detected.
    • 用于防止对车辆中的电动机的热损伤的系统和方法包括用于监测电动机和检测电动机的循环的装置。 如果循环发生在预定的增量时间内,则循环计数增加。 如果在预定的减量时间内没有发生循环,则如果循环计数大于零,则循环计数递减。 如果循环计数至少等于循环限制,则电机的功率运行至少在减少时间内停用。 该方法可以包括连续计算电动机消耗的能量,并且如果消耗的能量超过一个或多个允许的能量阈值,则将循环计数设定为等于循环极限。 该方法还可以包括当检测到故障条件时检测故障条件并将周期计数设置为等于循环限制。