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公开(公告)号：US20090153086A1
公开(公告)日：2009-06-18
申请号：US12334284
申请日：2008-12-12
申请人： Satoshi NARUMI , Masaaki Kato , Masaharu Hoashi , Toshiya Suzuki
发明人： Satoshi NARUMI , Masaaki Kato , Masaharu Hoashi , Toshiya Suzuki
IPC分类号： H02P6/18
CPC分类号： H02P6/18
摘要： The present invention provides a motor drive apparatus which improves a trade-off relation between a stable position detection and noise at its driving. A sensorless drive operation circuit calculates by operation a zero cross point (point p) of a voltage of a position detection phase at the next interval, using time information measured based on an output signal from a comparison circuit at the previous interval and the present interval. After the point p has been calculated, points a and b are detected by interrupting a predetermined time drive current.
摘要翻译： 本发明提供一种电动机驱动装置，其改善了在其行驶时的稳定位置检测和噪声之间的权衡关系。 无传感器驱动操作电路使用基于来自前一间隔的比较电路的输出信号测量的时间信息和当前间隔，通过操作来计算下一个间隔处的位置检测相位的电压的零交叉点（点p） 。 在计算点p之后，通过中断预定的时间驱动电流来检测点a和b。
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公开(公告)号：US08018189B2
公开(公告)日：2011-09-13
申请号：US12334284
申请日：2008-12-12
申请人： Satoshi Narumi , Masaaki Kato , Masaharu Hoashi , Toshiya Suzuki
发明人： Satoshi Narumi , Masaaki Kato , Masaharu Hoashi , Toshiya Suzuki
CPC分类号： H02P6/18
摘要： The present invention provides a motor drive apparatus which improves a trade-off relation between a stable position detection and noise at its driving. A sensorless drive operation circuit calculates by operation a zero cross point (point p) of a voltage of a position detection phase at the next interval, using time information measured based on an output signal from a comparison circuit at the previous interval and the present interval. After the point p has been calculated, points a and b are detected by interrupting a predetermined time drive current.
摘要翻译： 本发明提供一种电动机驱动装置，其改善了在其行驶时的稳定位置检测和噪声之间的权衡关系。 无传感器驱动操作电路使用基于来自前一间隔的比较电路的输出信号测量的时间信息和当前间隔，通过操作来计算下一个间隔处的位置检测相位的电压的零交叉点（点p） 。 在计算点p之后，通过中断预定的时间驱动电流来检测点a和b。
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公开(公告)号：US20070001669A1
公开(公告)日：2007-01-04
申请号：US11476052
申请日：2006-06-28
IPC分类号： G01B7/30
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.
摘要翻译： 公开了能够更适当地检测转子位置的静止位置检测电路和电动机驱动电路。 静止位置检测电路向电机的各相负载提供交流电。 电流沿第一方向流动的时间和电流沿与第一方向相反的第二方向流动的时间被转换成电信号并被放大。 根据电信号的值，确定电机转子在静止模式下的位置。 与反冲电压不同，使用交流电可以通过以增加的交替次数放大电信号来提高检测精度。 增加的交替数量可以放大电信号而不增加交流电流的值，因此与反冲电压不同，不需要大值的交流电。 结果，可以将交流电流减小到较小的值，并且可以抑制振动。
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公开(公告)号：US20070110410A1
公开(公告)日：2007-05-17
申请号：US11649838
申请日：2007-01-05
IPC分类号： H02P7/288
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.
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公开(公告)号：US06806663B2
公开(公告)日：2004-10-19
申请号：US10453738
申请日：2003-06-04
IPC分类号： H02P706
CPC分类号： H02P6/085 , H02P6/14 , H02P6/182 , H02P2209/07
摘要： A motor driving circuit includes an induced voltage detecting circuit for detecting induced voltages in a motor; a rotation speed/phase detecting circuit and an output matrix circuit for generating a plurality of control signals in response to the detection result of the voltage detecting circuit; a current control circuit for generating current control command values in response to the control signals; and a current detecting circuit for detecting output currents that are driving the motor, and for controlling output transistors in response to its detection result and the current control command values. The motor driving circuit can sharply reduce the driving noise of the motor with improving the efficiency of the motor drive by shaping the output currents in a sinusoidal waveform.
摘要翻译： 电动机驱动电路包括用于检测电动机中的感应电压的感应电压检测电路; 旋转速度/相位检测电路和输出矩阵电路，用于响应于电压检测电路的检测结果产生多个控制信号; 电流控制电路，用于响应于所述控制信号产生电流控制指令值; 以及电流检测电路，用于检测驱动电动机的输出电流，并响应于其检测结果和电流控制指令值来控制输出晶体管。 电动机驱动电路可以通过使正弦波形中的输出电流整形来提高电动机驱动的效率，从而大大降低电动机的驱动噪声。
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公开(公告)号：US07176677B2
公开(公告)日：2007-02-13
申请号：US11476052
申请日：2006-06-28
CPC分类号： G01D5/208
摘要： A stationary position detection circuit and a motor drive circuit capable of more properly detecting the rotor position are disclosed. The stationary position detection circuit supplies an alternating current to each phase load of the motor. The time during which the current flows in a first direction and the time during which the current flows in a second direction opposite to the first direction are converted into electrical signals and amplified. In accordance with the value of the electrical signals, the position of the motor rotor in stationary mode is determined. The use of the alternating current, unlike the kickback voltage, makes it possible to improve the detection accuracy by amplifying the electrical signals with an increased number of alternations. An increased number of alternations can amplify the electrical signals without increasing the value of the alternating current, and therefore, unlike in the case of the kickback voltage, the alternating current of a large value is not required. As a result, the alternating current can be reduced to a small value and the vibration can be suppressed.
摘要翻译： 公开了能够更适当地检测转子位置的静止位置检测电路和电动机驱动电路。 静止位置检测电路向电机的各相负载提供交流电。 电流沿第一方向流动的时间和电流沿与第一方向相反的第二方向流动的时间被转换成电信号并被放大。 根据电信号的值，确定电机转子在静止模式下的位置。 与反冲电压不同，使用交流电可以通过以增加的交替次数放大电信号来提高检测精度。 增加的交替数量可以放大电信号而不增加交流电流的值，因此与反冲电压不同，不需要大值的交流电。 结果，可以将交流电流减小到较小的值，并且可以抑制振动。
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公开(公告)号：US20090058336A1
公开(公告)日：2009-03-05
申请号：US12194904
申请日：2008-08-20
申请人： Satoshi Narumi , Hiroshi Murakami , Toshiya Suzuki
发明人： Satoshi Narumi , Hiroshi Murakami , Toshiya Suzuki
IPC分类号： H02P6/18
CPC分类号： H02P6/182
摘要： An object of the present invention is to provide a motor driving device capable of outputting an accurate rotation signal while preventing a false detection of B-EMF in a position detecting comparator. The motor driving device includes an output circuit, filter circuit, comparison circuit, current zero ampere detecting circuit, position detecting circuit, sensorless drive arithmetic operation circuit, noise reduction current waveform generating circuit, signal synthesizing circuit, and output transistor control circuit, the comparison circuit including a comparator, polarity switching portion connected to a +terminal and −terminal of the comparator and signal switching portion, the comparator being structured to be able to set and release an offset having a predetermined voltage value set preliminarily.
摘要翻译： 本发明的目的是提供一种能够在防止位置检测比较器中的B-EMF的错误检测的同时输出精确的旋转信号的电动机驱动装置。 电机驱动装置包括输出电路，滤波电路，比较电路，电流零安培检测电路，位置检测电路，无传感器驱动算术运算电路，降噪电流波形发生电路，信号合成电路和输出晶体管控制电路，比较 电路，包括比较器，连接到比较器和信号切换部分的+端和端的极性切换部分，比较器被构造成能够初步设置和释放具有预定电压值的偏移。
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公开(公告)号：US07902775B2
公开(公告)日：2011-03-08
申请号：US12194904
申请日：2008-08-20
申请人： Satoshi Narumi , Hiroshi Murakami , Toshiya Suzuki
发明人： Satoshi Narumi , Hiroshi Murakami , Toshiya Suzuki
IPC分类号： H02P6/18
CPC分类号： H02P6/182
摘要： An object of the present invention is to provide a motor driving device capable of outputting an accurate rotation signal while preventing a false detection of B-EMF in a position detecting comparator. The motor driving device includes an output circuit, filter circuit, comparison circuit, current zero ampere detecting circuit, position detecting circuit, sensorless drive arithmetic operation circuit, noise reduction current waveform generating circuit, signal synthesizing circuit, and output transistor control circuit, the comparison circuit including a comparator, polarity switching portion connected to a + terminal and − terminal of the comparator and signal switching portion, the comparator being structured to be able to set and release an offset having a predetermined voltage value set preliminarily.
摘要翻译： 本发明的目的是提供一种能够在防止位置检测比较器中的B-EMF的错误检测的同时输出精确的旋转信号的电动机驱动装置。 电机驱动装置包括输出电路，滤波电路，比较电路，电流零安培检测电路，位置检测电路，无传感器驱动算术运算电路，降噪电流波形发生电路，信号合成电路和输出晶体管控制电路，比较 电路，包括比较器，连接到比较器和信号切换部分的+端子和端子的极性切换部分，比较器被构造成能够初步设置和释放具有预定电压值的偏移。
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公开(公告)号：US08860340B2
公开(公告)日：2014-10-14
申请号：US13370402
申请日：2012-02-10
申请人： Shinsuke Sano , Toshiya Suzuki
发明人： Shinsuke Sano , Toshiya Suzuki
CPC分类号： F04D27/004
摘要： The present invention is provided to remove dust that adhered to a cooling fan. A plurality of comparators are disposed for each of a plurality of coils, respectively, and generates a back electromotive force sensing signal denoting a comparison result by comparing a back electromotive force appearing at one end of each corresponding coil with a neutral-point voltage of the coils. A driving signal synthesis circuit generates a driving control signal used to enable the fan motor to proceed the following actions: (i) enabling the fan motor to rotate toward the opposite direction as a normal operation within a specific reverse rotation period after a driving of the fan motor is started, (ii) applying a brake to the fan motor within a braking period, and (iii) enabling the fan motor to rotate toward a direction of normal operation in a normal driving period. A driving circuit drives the fan motor.
摘要翻译： 提供本发明以去除附着在冷却风扇上的灰尘。 分别为多个线圈中的每一个设置多个比较器，并且通过将出现在每个相应线圈的一端的反电动势与其中的中性点电压进行比较来产生表示比较结果的反电动势感测信号 线圈 驱动信号合成电路产生用于使风扇马达能够进行以下动作的驱动控制信号：（i）使得风扇马达能够在驱动后的特定反转周期内的正常操作期间朝向相反方向旋转 风扇电动机起动，（ii）在制动期间对风扇电动机施加制动，（iii）使风扇电动机能够在正常运转期间向正常运转方向转动。 驱动电路驱动风扇电机。
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公开(公告)号：US20140147693A1
公开(公告)日：2014-05-29
申请号：US13823901
申请日：2011-09-16
申请人： Masanori Yasuyama , Yoshiaki Nakazawa , Masahito Tasaka , Toshiya Suzuki , Masahiro Nakata , Hiroki Fujimoto , Hitomi Nishibata
发明人： Masanori Yasuyama , Yoshiaki Nakazawa , Masahito Tasaka , Toshiya Suzuki , Masahiro Nakata , Hiroki Fujimoto , Hitomi Nishibata
CPC分类号： B32B3/28 , B21D5/08 , B21D21/00 , B21D22/00 , B21D22/208 , B21D35/007 , B21D49/00 , B21D53/88 , B23K31/022 , B23K2101/006 , B32B3/00 , B32B3/02 , B32B3/04 , B32B3/08 , B32B3/085 , B32B15/01 , B60R19/03 , B62D21/157 , B62D25/04 , Y10T29/49826 , Y10T428/12347 , Y10T428/12354 , Y10T428/12375 , Y10T428/12382 , Y10T428/1241 , Y10T428/12958
摘要： A formed member is provided which can be manufactured at a low cost, which has excellent dimensional accuracy, which has excellent axial crushing properties and three-point bending properties, which has excellent bending stiffness and torsional stiffness, and which is suitable for use in a component of an automobile. The formed member (20) has a reinforcing member (35) which is joined by a weld (40) provided on a ridge portion (28). It is manufactured by joining a flat sheet blank and a flat sheet reinforcing member (35) by a weld (40) and performing bending so that the weld (40) becomes a ridge portion (28).
摘要翻译： 提供了可以低成本制造的成形构件，其具有优异的尺寸精度，其具有优异的轴向破碎性能和三点弯曲性能，其具有优异的弯曲刚度和扭转刚度，并且适用于 汽车零部件 成形构件（20）具有加强构件（35），该加强构件通过设置在脊部（28）上的焊接部（40）而接合。 通过焊接（40）接合平板坯料和平板加强部件（35）并进行弯曲使焊缝（40）成为脊部（28）而制造。
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