Voltage increasing control circuit and power tool
    111.
    发明授权
    Voltage increasing control circuit and power tool 有权
    增压控制电路和电动工具

    公开(公告)号:US09088239B2

    公开(公告)日:2015-07-21

    申请号:US13936235

    申请日:2013-07-08

    CPC classification number: H02P29/00 B25F5/00 G05F1/66 H02M3/156 H02P2201/09

    Abstract: A voltage increasing control circuit is connected to a power supply to regulate power supplied to a load. The voltage increasing control circuit includes a voltage increasing unit configured to increase voltage that is supplied from the power supply, and supply the voltage to the load. A power estimation unit determines whether or not to increase the power supplied to the load. A voltage control unit controls the voltage increasing unit. When the power estimation unit determines to increase the power supplied to the load, the voltage control unit controls the voltage increasing unit to increase the power supplied to the load.

    Abstract translation: 电压增加控制电路连接到电源以调节供应给负载的电力。 升压控制电路包括升压单元,其被配置为增加从电源提供的电压,并将电压提供给负载。 功率估计单元确定是否增加提供给负载的功率。 电压控制单元控制升压单元。 当功率估计单元确定增加提供给负载的功率时,电压控制单元控制升压单元以增加提供给负载的功率。

    ELECTRIC POWER TOOL
    112.
    发明申请
    ELECTRIC POWER TOOL 有权
    电动工具

    公开(公告)号:US20140262390A1

    公开(公告)日:2014-09-18

    申请号:US14202107

    申请日:2014-03-10

    Abstract: An electric power tool includes a voltage step-up condition setting operation unit that serves as a human machine interface and a voltage converter capable of performing a voltage step-up operation to raise a voltage supplied from a power supply and supply a raised voltage to a motor. The voltage converter is further capable of changing a voltage step-up level in the voltage step-up operation in accordance with the operation of the voltage step-up condition setting operation unit. A driving state detection unit generates a driving state signal corresponding to a driving state of the electric power tool. A control unit controls a stop timing of the motor in accordance with the driving state signal.

    Abstract translation: 电动工具包括作为人机接口的电压升压状态设定动作部以及能够进行升压动作的电压转换器,以提高从电源供给的电压,并将升高的电压提供给 发动机。 电压转换器还能够根据升压状态设定运算部的动作,改变升压动作中的升压电平。 驱动状态检测单元产生与电动工具的驱动状态对应的驱动状态信号。 控制单元根据驱动状态信号控制电机的停止定时。

    MOTOR CONTROL SYSTEM
    113.
    发明申请
    MOTOR CONTROL SYSTEM 有权
    电机控制系统

    公开(公告)号:US20140217941A1

    公开(公告)日:2014-08-07

    申请号:US14343910

    申请日:2012-09-05

    Abstract: A motor control system includes: a power supply; a converter; an inverter; an alternating-current motor; and a control unit that drives the motor in any one of sinusoidal PWM control, overmodulation control and rectangular wave control through operation control of the converter and the inverter. The control unit starts step-up operation of the converter when a current vector of motor current of the motor on a d-q coordinate plane becomes a current phase corresponding to motor torque, at which a system loss is equal between before and after starting the step-up operation, while the control unit supplies the direct-current voltage, supplied from the power supply, to the inverter without stepping up the direct-current voltage by the converter and performs the rectangular wave control of the motor in a state where the current phase is an optimal current phase.

    Abstract translation: 电机控制系统包括:电源; 转换器 逆变器 交流电动机; 以及通过转换器和逆变器的操作控制,以正弦PWM控制,过调制控制和矩形波控制中的任一种驱动电动机的控制单元。 当电动机在dq坐标平面上的电动机电流的当前矢量变为与电动机转矩相对应的电流相位时,控制单元开始升压运行,在电动机转矩之间,在步进电动机起动之前和之后系统损耗相等, 同时控制单元将从电源提供的直流电压提供给逆变器,而不会由转换器提高直流电压,并且在当前阶段的状态下执行电动机的矩形波控制 是最佳的电流相位。

    MOTOR DRIVING DEVICE INCLUDING ELECTRIC STORAGE DEVICE
    114.
    发明申请
    MOTOR DRIVING DEVICE INCLUDING ELECTRIC STORAGE DEVICE 有权
    包括电力存储装置的电动机驱动装置

    公开(公告)号:US20140021888A1

    公开(公告)日:2014-01-23

    申请号:US13943419

    申请日:2013-07-16

    Abstract: A motor driving device includes a rectifier, an inverter connected to a DC link on a DC side of the rectifier, a power failure detecting unit for detecting a power failure on the alternating side of the rectifier, an electric storage device connected to the DC link, a charging unit that possesses a voltage boosting function of charging the electric storage device by direct current power at the DC link, a discharging unit that causes direct current power stored in the electric storage device to be discharged to the DC link, and a control unit that causes the charging unit to operate when the power failure detecting unit does not detect a power failure, or before start of motor drive, and causes the discharging unit and the inverter to operate when the power failure detecting unit detects a power failure.

    Abstract translation: 一种电动机驱动装置,包括整流器,连接到整流器的直流侧的直流母线的逆变器,用于检测整流器的交流侧的电力故障的电力故障检测单元,连接到直流母线的蓄电装置 具有通过所述直流母线的直流电而对所述蓄电装置进行充电的升压功能的充电单元,将存储在所述蓄电装置中的直流电力放电到所述直流母线的放电单元,以及控制 当电源故障检测单元没有检测到电源故障或者在电动机驱动开始之前使得充电单元工作的单元,并且当电源故障检测单元检测到电源故障时,使得放电单元和逆变器工作。

    VOLTAGE INCREASING CONTROL CIRCUIT AND POWER TOOL
    115.
    发明申请
    VOLTAGE INCREASING CONTROL CIRCUIT AND POWER TOOL 有权
    电压增加控制电路和电动工具

    公开(公告)号:US20140015465A1

    公开(公告)日:2014-01-16

    申请号:US13936235

    申请日:2013-07-08

    CPC classification number: H02P29/00 B25F5/00 G05F1/66 H02M3/156 H02P2201/09

    Abstract: A voltage increasing control circuit is connected to a power supply to regulate power supplied to a load. The voltage increasing control circuit includes a voltage increasing unit configured to increase voltage that is supplied from the power supply, and supply the voltage to the load. A power estimation unit determines whether or not to increase the power supplied to the load. A voltage control unit controls the voltage increasing unit. When the power estimation unit determines to increase the power supplied to the load, the voltage control unit controls the voltage increasing unit to increase the power supplied to the load.

    Abstract translation: 电压增加控制电路连接到电源以调节供应给负载的电力。 升压控制电路包括升压单元,其被配置为增加从电源提供的电压,并将电压提供给负载。 功率估计单元确定是否增加提供给负载的功率。 电压控制单元控制升压单元。 当功率估计单元确定增加提供给负载的功率时,电压控制单元控制升压单元以增加提供给负载的功率。

    Drive controller and drive control method for electric motor
    116.
    发明授权
    Drive controller and drive control method for electric motor 有权
    电动机驱动控制器及驱动控制方式

    公开(公告)号:US08269439B2

    公开(公告)日:2012-09-18

    申请号:US12449659

    申请日:2008-03-05

    Applicant: Takeshi Itoh

    Inventor: Takeshi Itoh

    Abstract: Control mode switching determination is made as a part of a main loop (control period for overall control of an AC electric motor. When switching from the rectangular wave voltage control mode to PWM control mode is determined, the change in voltage phase of the rectangular wave voltage is inhibited from the timing of control mode switching determination until the next execution of the main loop until the timing at which the control mode is actually switched, to maintain voltage phase of the rectangular wave voltage at the time of control mode switching determination. Consequently, in a drive controller for an AC electric motor allowing switching between control modes, control mode can appropriately be switched without destabilizing the operation of the AC electric motor.

    Abstract translation: 作为主回路的一部分进行控制模式切换判定(AC电动机的整体控制的控制周期),从矩形波电压控制模式切换到PWM控制模式时,矩形波的电压相位的变化 从控制模式切换确定的定时直到下一次执行主环路直至控制模式实际切换的定时为止,从而在控制模式切换判定时保持矩形波电压的电压相位被抑制。 在允许在控制模式之间切换的AC电动机的驱动控制器中,可以适当地切换控制模式而不会使AC电动机的操作不稳定。

    Method of controlling DC/DC converter, fuel cell vehicle for carrying out such method
    118.
    发明授权
    Method of controlling DC/DC converter, fuel cell vehicle for carrying out such method 有权
    控制DC / DC转换器的方法,用于执行这种方法的燃料电池车

    公开(公告)号:US08154152B2

    公开(公告)日:2012-04-10

    申请号:US12468519

    申请日:2009-05-19

    Abstract: A triangular-wave current flows through a reactor of a DC/DC converter for converting voltages between increased and reduced levels. Surges are reduced, which are developed in an output voltage serving as a control voltage when the triangular-wave current changes across a zero value at which the current direction is changed. When a primary current flowing through the reactor changes across 0 [A] (zero value) at which the direction is changed, within an adjustment range, a feedback coefficient by which to multiply the error between the control voltage and a target voltage is multiplied by k (k>1) so as to increase a feedback amount. Surges developed in the control voltage due to a dead time when the primary current changes across 0 [A] are reduced.

    Abstract translation: 三角波电流流经DC / DC转换器的电抗器,用于转换升高和降低电平之间的电压。 当三角波电流在当前方向改变的零值变化时,在作为控制电压的输出电压中产生浪涌。 当流过电抗器的初级电流在方向改变的0 [A](零值)之间变化时,在调节范围内,将控制电压和目标电压之间的误差相乘的反馈系数乘以 k(k> 1),以增加反馈量。 当初级电流在0 [A]上变化时,由于死区时间而产生的控制电压产生的浪涌减少。

Patent Agency Ranking