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公开(公告)号：US08264189B2
公开(公告)日：2012-09-11
申请号：US12450187
申请日：2008-02-22
IPC分类号： H02P1/46
CPC分类号： H02K7/116 , H02K7/14 , H02M7/5395 , H02P6/06
摘要： A motor controller is provided with a first PWM circuit that repeatedly outputs an on-signal at a first carrier frequency, a second PWM circuit that repeatedly outputs an on-signal at a second carrier frequency that is lower than the first carrier frequency, an AND circuit that receives both the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs a third on-signal which is a logical product of the received on-signals, and a voltage apply circuit that applies a voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. At least one of the first carrier frequency and the second carrier frequency is equal to or lower than 1 kHz or equal to or higher than 3 kHz. As a result, generation of an unpleasant noise by a motor controller using two PWM circuits may be suppressed.
摘要翻译： 电动机控制器设置有以第一载波频率重复输出接通信号的第一PWM电路，在低于第一载波频率的第二载波频率重复输出导通信号的第二PWM电路，AND 接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号的电路，并输出作为接收的接通信号的逻辑积的第三导通信号，以及电压施加电路， 与AND电路输出的第三导通信号同步地间歇地向电动机施加电压。 第一载波频率和第二载波频率中的至少一个等于或低于1kHz或等于或高于3kHz。 结果，可以抑制由使用两个PWM电路的电动机控制器产生不愉快的噪声。
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公开(公告)号：US08193753B2
公开(公告)日：2012-06-05
申请号：US12450186
申请日：2008-02-22
IPC分类号： G05B11/28
摘要： A motor controller is provided with a velocity processing unit that determines a corrected target rotation velocity by correcting the inputted target rotation velocity of the motor in accordance with a velocity deviation between the inputted target rotation velocity and an actual rotation velocity detected from the motor, a first PWM circuit that repeatedly outputs an on-signal having a first pulse width at a first carrier frequency, wherein the first pulse width of the on-signal is modulated by the first PWM circuit in accordance with the corrected target rotation velocity, a second PWM circuit that repeatedly outputs an on-signal having a second pulse width at a second carrier frequency, wherein the second pulse width is different from the first pulse width, the second carrier frequency is lower than the first carrier frequency, and the second pulse width of the on-signal is modulated by the second PWM circuit in accordance with the corrected target rotation velocity, an AND circuit that receives the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs third on-signal which is a logical product of the on-signals, and a voltage apply circuit that applies voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. As a result, the rotation velocity of the motor may be correctly controlled.
摘要翻译： 电动机控制器具有速度处理单元，速度处理单元通过根据输入的目标转速与从电动机检测到的实际转速之间的速度偏差校正马达的输入目标转速来确定修正的目标转速， 第一PWM电路，其以第一载波频率重复地输出具有第一脉冲宽度的导通信号，其中所述导通信号的所述第一脉冲宽度由所述第一PWM电路根据所述修正的目标旋转速度进行调制，第二PWM 电路，其以第二载波频率重复输出具有第二脉冲宽度的导通信号，其中所述第二脉冲宽度不同于所述第一脉冲宽度，所述第二载波频率低于所述第一载波频率，并且所述第二脉冲宽度 根据校正的目标旋转速度AND电路，由第二PWM电路对接通信号进行调制 其接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号，并输出作为导通信号的逻辑积的第三导通信号，以及将电压施加到 电机与AND电路输出的第三导通信号同步地间歇地进行。 结果，可以正确地控制马达的旋转速度。
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公开(公告)号：US20100019716A1
公开(公告)日：2010-01-28
申请号：US12450187
申请日：2008-02-22
IPC分类号： H02P23/00
CPC分类号： H02K7/116 , H02K7/14 , H02M7/5395 , H02P6/06
摘要： A motor controller is provided with a first PWM circuit that repeatedly outputs an on-signal at a first carrier frequency, a second PWM circuit that repeatedly outputs an on-signal at a second carrier frequency that is lower than the first carrier frequency, an AND circuit that receives both the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs a third on-signal which is a logical product of the received on-signals, and a voltage apply circuit that applies a voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. At least one of the first carrier frequency and the second carrier frequency is equal to or lower than 1 kHz or equal to or higher than 3 kHz. As a result, generation of an unpleasant noise by a motor controller using two PWM circuits may be suppressed.
摘要翻译： 电动机控制器设置有以第一载波频率重复输出接通信号的第一PWM电路，在低于第一载波频率的第二载波频率重复输出导通信号的第二PWM电路，AND 接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号的电路，并输出作为接收的接通信号的逻辑积的第三导通信号，以及电压施加电路， 与AND电路输出的第三导通信号同步地间歇地向电动机施加电压。 第一载波频率和第二载波频率中的至少一个等于或低于1kHz或等于或高于3kHz。 结果，可以抑制由使用两个PWM电路的电动机控制器产生不愉快的噪声。
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公开(公告)号：US20100027979A1
公开(公告)日：2010-02-04
申请号：US12450186
申请日：2008-02-22
IPC分类号： H02P7/29
摘要： A motor controller is provided with a velocity processing unit that determines a corrected target rotation velocity by correcting the inputted target rotation velocity of the motor in accordance with a velocity deviation between the inputted target rotation velocity and an actual rotation velocity detected from the motor, a first PWM circuit that repeatedly outputs an on-signal having a first pulse width at a first carrier frequency, wherein the first pulse width of the on-signal is modulated by the first PWM circuit in accordance with the corrected target rotation velocity, a second PWM circuit that repeatedly outputs an on-signal having a second pulse width at a second carrier frequency, wherein the second pulse width is different from the first pulse width, the second carrier frequency is lower than the first carrier frequency, and the second pulse width of the on-signal is modulated by the second PWM circuit in accordance with the corrected target rotation velocity, an AND circuit that receives the on-signal outputted from the first PWM circuit and the on-signal outputted from the second PWM circuit and outputs third on-signal which is a logical product of the on-signals, and a voltage apply circuit that applies voltage to the motor intermittently in synchronization with the third on-signal outputted from the AND circuit. As a result, the rotation velocity of the motor may be correctly controlled.
摘要翻译： 电动机控制器具有速度处理单元，速度处理单元通过根据输入的目标转速与从电动机检测到的实际转速之间的速度偏差校正马达的输入目标转速来确定修正的目标转速， 第一PWM电路，其以第一载波频率重复地输出具有第一脉冲宽度的导通信号，其中所述导通信号的所述第一脉冲宽度由所述第一PWM电路根据所述修正的目标旋转速度进行调制，第二PWM 电路，其以第二载波频率重复输出具有第二脉冲宽度的导通信号，其中所述第二脉冲宽度不同于所述第一脉冲宽度，所述第二载波频率低于所述第一载波频率，并且所述第二脉冲宽度 根据校正的目标旋转速度AND电路，由第二PWM电路对接通信号进行调制 其接收从第一PWM电路输出的导通信号和从第二PWM电路输出的导通信号，并输出作为导通信号的逻辑积的第三导通信号，以及将电压施加到 电机与AND电路输出的第三导通信号同步地间歇地进行。 结果，可以正确地控制马达的旋转速度。
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公开(公告)号：US08616300B2
公开(公告)日：2013-12-31
申请号：US12457092
申请日：2009-06-01
申请人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： E02F9/20
CPC分类号： B25F5/021
摘要： A power tool of the present teachings comprises a prime mover that drives a tool, a main switch that causes the prime mover to operate when the main switch is turned on and causes the prime mover to stop operating when the main switch is turned off, an illuminator that lights a working area of the tool, and a lighting mode selector switch for switching the lighting mode of the illuminator between a plurality of lighting modes which include a first lighting mode and a second lighting mode. When the first lighting mode is selected, the illuminator will be turned on for a first predetermined period from the point at which the main switch is turned off. When the second lighting mode is selected, the illuminator will not be turned on during the first predetermined period from the point at which the main switch is turned off.
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公开(公告)号：US08179069B2
公开(公告)日：2012-05-15
申请号：US12222650
申请日：2008-08-13
IPC分类号： H02P7/00
摘要： An electric power tool includes a direct current motor, at least one switching device, a trigger switch, a control unit, and a drive unit. The control unit sets a driving duty ratio for PWM controlling the direct current motor so as to increase the driving duty ratio in a stepwise manner in accordance with an operation continuation time of the trigger switch during a period from when an operation of the trigger switch is started until when a predetermined start-up time has elapsed.
摘要翻译： 电动工具包括直流电动机，至少一个开关装置，触发开关，控制单元和驱动单元。 控制单元设定用于PWM控制直流电动机的驱动占空比，以便在触发开关的操作从触发开关的操作期间起触发开关的操作持续时间以逐步的方式增加驱动占空比 开始直到经过预定的启动时间。
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公开(公告)号：US20090309519A1
公开(公告)日：2009-12-17
申请号：US12457092
申请日：2009-06-01
申请人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
发明人： Jiro Suzuki , Hirokatsu Yamamoto , Takuya Kusakawa
IPC分类号： H05B37/00
CPC分类号： B25F5/021
摘要： A power tool of the present teachings comprises a prime mover that drives a tool, a main switch that causes the prime mover to operate when the main switch is turned on and causes the prime mover to stop operating when the main switch is turned off, an illuminator that lights a working area of the tool, and a lighting mode selector switch for switching the lighting mode of the illuminator between a plurality of lighting modes which include a first lighting mode and a second lighting mode. When the first lighting mode is selected, the illuminator will be turned on for a first predetermined period from the point at which the main switch is turned off. When the second lighting mode is selected, the illuminator will not be turned on during the first predetermined period from the point at which the main switch is turned off.
摘要翻译： 本教导的电动工具包括驱动工具的原动机，当主开关接通时使原动机工作的主开关，并且当主开关关闭时使原动机停止工作， 点亮工具的工作区域的照明器，以及用于在包括第一照明模式和第二照明模式的多个照明模式之间切换照明器的照明模式的照明模式选择器开关。 当选择第一照明模式时，照明器将从主开关关闭的点开始第一预定时段。 当选择第二照明模式时，在从主开关关闭的点开始的第一预定时段期间，照明器将不会被接通。
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公开(公告)号：US20090051306A1
公开(公告)日：2009-02-26
申请号：US12222650
申请日：2008-08-13
IPC分类号： H02P1/18
摘要： An electric power tool includes a direct current motor, at least one switching device, a trigger switch, a control unit, and a drive unit. The control unit sets a driving duty ratio for PWM controlling the direct current motor so as to increase the driving duty ratio in a stepwise manner in accordance with an operation continuation time of the trigger switch during a period from when an operation of the trigger switch is started until when a predetermined start-up time has elapsed.
摘要翻译： 电动工具包括直流电动机，至少一个开关装置，触发开关，控制单元和驱动单元。 控制单元设定用于PWM控制直流电动机的驱动占空比，以便在触发开关的操作从触发开关的操作期间起触发开关的操作持续时间以逐步的方式增加驱动占空比 开始直到经过预定的启动时间。
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公开(公告)号：US20110315417A1
公开(公告)日：2011-12-29
申请号：US13203936
申请日：2010-01-14
IPC分类号： B25B21/02
CPC分类号： B25B21/02 , B25B21/008 , B25B21/026 , B25B23/14 , B25B23/147
摘要： A rotary impact tool includes: a hammer rotating by receiving a rotational force of a motor; an anvil rotating by receiving a rotational force of the hammer; and an end tool attached to the anvil, the rotary impact tool being constructed such that when a torque of a value not less than a predetermined value is applied to the anvil from the outside, the hammer is disengaged from the anvil to rotate idle and applies an impact to the anvil in a rotational direction after rotating idle by a predetermined angle, the rotary impact tool including an impact detection means detecting impacts and a speed switching means switching the rotational speed of the motor, and when the impact detection means detects an impact during rotation of the anvil in a tightening direction, the speed switching means switches the rotational speed of the motor from a normal speed to a low speed.
摘要翻译： 旋转冲击工具包括：通过接收电动机的旋转力而旋转的锤; 通过接收锤的旋转力而旋转的砧座; 以及附接到砧座的端部工具，所述旋转冲击工具被构造成使得当来自外部的砧座施加不小于预定值的扭矩时，锤与砧座脱离以转动空转并施加 在旋转怠速预定角度后对旋转方向的砧座的影响，旋转冲击工具包括检测冲击的冲击检测装置和切换电动机的转速的速度切换装置，并且当冲击检测装置检测到冲击时 在砧座沿紧固方向旋转期间，速度切换装置将马达的转速从正常速度切换到低速。
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10.发明授权Apparatus for estimating quantity of state relating to motor, and electric tool 有权用于估计与电动机有关的状态量的装置和电动工具公开(公告)号：US09425730B2
公开(公告)日：2016-08-23
申请号：US13980941
申请日：2012-01-19
申请人： Masahiko Sako , Hirokatsu Yamamoto , Takaaki Osada
发明人： Masahiko Sako , Hirokatsu Yamamoto , Takaaki Osada
IPC分类号： H02K17/32 , G05B9/02 , H02P31/00 , B25F5/00 , H02P7/29 , H02P6/06 , H02P7/295 , H02P23/12 , G05B17/02 , H02P23/14
CPC分类号： H02P31/00 , B25F5/00 , G05B17/02 , H02P6/06 , H02P6/34 , H02P7/29 , H02P7/295 , H02P23/12 , H02P23/14
摘要： The present application discloses an apparatus including: a motor model that reflects a characteristic of a motor and includes at least inputs pertaining to a first quantity of state and a second quantity of state and an output pertaining to a third quantity of state; a comparator that calculates a difference between the third quantity of state in an actual motor and the third quantity of state output from the motor model; and an amplifier that amplifies an output of the comparator at a predetermined gain. The first quantity of state in the actual motor is input into the motor model as the first quantity of state, and an output of the amplifier is input into the motor model as the second quantity of state. The apparatus then uses the output of the amplifier as an estimated value of the second quantity of state in the actual motor.
摘要翻译： 本申请公开了一种装置，包括：电机模型，其反映电动机的特性，并且至少包括与第一数量状态和第二数量状态相关的输入和与第三数量状态相关的输出; 计算实际电动机中的第三状态量与从电动机模型输出的第三状态量之间的差的比较器; 以及以预定增益放大比较器的输出的放大器。 将实际电动机的第一状态量作为第一状态量输入到电动机模型中，并且将放大器的输出作为第二数量状态输入到电动机模型中。 然后，该装置使用放大器的输出作为实际电动机中的第二数量状态的估计值。
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