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公开(公告)号：US20110068728A1
公开(公告)日：2011-03-24
申请号：US12714035
申请日：2010-02-26
IPC分类号： G01R31/28
CPC分类号： H02M1/32 , H02M2001/0009 , H02P27/08 , H02P29/0241
摘要： A motor drive device has a drive unit at least three sets of upper and lower arms, each of the at least three sets of upper and lower arms having switching elements thereon, for driving a motor based on an ON/OFF operation of each of the switching elements by a PWM signal, a single current detection resistor for detecting current flowing to the drive unit, and a control unit for detecting a current value of the current flowing to each of phases of the motor based on the current flowing to the current detection resistor, and outputting the PWM signal to each of the switching elements based on a target current value of each of the phases and the detected current value of each of the phases. The control unit has an upper stage regeneration abnormality determination unit for detecting the current flowing to the current detection resistor in an upper stage regeneration state, in which the switching elements of the upper arm of all of the phases are in an ON state and the switching elements of the lower arm of all of the phases are in an OFF state, and determining abnormality based on the detection result, and a lower stage regeneration abnormality determination unit for detecting the current flowing to the current detection resistor in a lower stage regeneration state, in which the switching elements of the upper arm of all of the phases are in the OFF state and the switching elements of the lower arm of all of the phases are in the ON state, and determining abnormality based on the detection result.
摘要翻译： 电动机驱动装置具有至少三组上臂和下臂的驱动单元，所述至少三组上臂和下臂中的至少三组在其上具有开关元件，用于基于每一个的开/关操作来驱动马达 通过PWM信号的开关元件，用于检测流向驱动单元的电流的单电流检测电阻器;以及控制单元，用于基于流向电流检测的电流来检测流过电动机各相的电流的电流值 电阻器，并且基于每个相的目标电流值和每个相的检测电流值，将PWM信号输出到每个开关元件。 控制单元具有上级再生异常判定单元，用于检测流入上级再生状态的电流检测电阻的电流，其中所有相的上臂的开关元件处于导通状态，并且开关 所有相的下臂的元件处于断开状态，并且基于检测结果确定异常;以及下级再生异常确定单元，用于检测在较低级再生状态中流向电流检测电阻器的电流， 其中所有相的上臂的开关元件处于断开状态，并且所有相的下臂的开关元件处于接通状态，并且基于检测结果来确定异常。
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公开(公告)号：US20080066995A1
公开(公告)日：2008-03-20
申请号：US11895130
申请日：2007-08-23
CPC分类号： B62D5/0463 , B62D6/02
摘要： An electric power steering control apparatus for controlling a motor that provides an assisting force for steering a steering wheel has a command value calculation device operable to calculate a command value for a torque current to be fed to the motor based on a steering torque of the steering wheel, a magnetic field control device operable to control intensity of a magnetic field in the motor, and a motor drive device operable to drive the motor based on outputs from the command value calculation device and the magnetic field control device. The magnetic field control device is operable to perform a field weakening control for weakening the magnetic field in the motor when a vehicle speed is less than a predetermined value, and to not perform the field weakening control when the vehicle speed is not less than the predetermined value.
摘要翻译： 一种用于控制提供用于转向方向盘的辅助力的电动机的电动助力转向控制装置具有指令值计算装置，其可操作以基于所述转向器的转向转矩来计算要馈送到所述电动机的转矩电流的指令值 车轮，可操作以控制电动机中的磁场强度的磁场控制装置，以及可根据来自指令值计算装置和磁场控制装置的输出来驱动电动机的电动机驱动装置。 磁场控制装置可操作以执行磁场削弱控制，以在车速小于预定值时削弱电动机中的磁场，并且当车速不小于预定值时，不执行磁场弱化控制 值。
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公开(公告)号：US07831356B2
公开(公告)日：2010-11-09
申请号：US11895130
申请日：2007-08-23
CPC分类号： B62D5/0463 , B62D6/02
摘要： An electric power steering control apparatus for controlling a motor that provides an assisting force for steering a steering wheel has a command value calculation device operable to calculate a command value for a torque current to be fed to the motor based on a steering torque of the steering wheel, a magnetic field control device operable to control intensity of a magnetic field in the motor, and a motor drive device operable to drive the motor based on outputs from the command value calculation device and the magnetic field control device. The magnetic field control device is operable to perform a field weakening control for weakening the magnetic field in the motor when a vehicle speed is less than a predetermined value, and to not perform the field weakening control when the vehicle speed is not less than the predetermined value.
摘要翻译： 一种用于控制提供用于转向方向盘的辅助力的电动机的电动助力转向控制装置具有指令值计算装置，其可操作以基于所述转向器的转向转矩来计算要馈送到所述电动机的转矩电流的指令值 车轮，可操作以控制电动机中的磁场强度的磁场控制装置，以及可根据来自指令值计算装置和磁场控制装置的输出来驱动电动机的电动机驱动装置。 磁场控制装置可操作以执行磁场削弱控制，以在车速小于预定值时削弱电动机中的磁场，并且当车速不小于预定值时，不执行磁场弱化控制 值。
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公开(公告)号：US20150061555A1
公开(公告)日：2015-03-05
申请号：US14477467
申请日：2014-09-04
IPC分类号： H02P6/00
CPC分类号： H02P6/16 , B62D5/046 , H02P6/28 , H02P2205/01
摘要： A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to the number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of ON or OFF operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of a PWM signals for turning the switching elements ON or OFF on the basis of a deviation between a current value of the current detected by the current detector and a target current value.
摘要翻译： 电动机控制装置具有逆变器电路，其具有设置成与相数相对设置的多对上下臂，以及设置在驱动电动机的各相的每个上臂和下臂上的开关元件 基于各个开关元件的ON或OFF操作，检测流经逆变器电路的电动机的电流的单个电流检测器，以及计算用于使开关元件接通或关闭的PWM信号的占空比的占空比计算器 基于由电流检测器检测的电流的电流值与目标电流值之间的偏差。
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公开(公告)号：US08228012B2
公开(公告)日：2012-07-24
申请号：US12277025
申请日：2008-11-24
CPC分类号： H02P27/08 , H02M7/53875 , H02M7/5395 , H02M2001/0009 , H02P29/50
摘要： A controller of a multi-phase electric motor has a drive section having an upper arm switching element and a lower arm switching element for driving the multi-phase electric motor, a single current detection section for detecting a current value of the multi-phase electric motor, a pulse width modulation signal generation section for generating plural pulse width modulation of each phase within one control period based on the current value detected by the current detection section and a carrier signal, and a phase movement section for moving the pulse width modulation signal of a predetermined phase generated by the pulse width modulation signal generation section by gradually changing a movement amount of the phase in one control period, and outputting the resultant pulse width modulation signal to the drive section.
摘要翻译： 多相电动机的控制器具有驱动部，该驱动部具有用于驱动多相电动机的上臂开关元件和下臂开关元件，用于检测多相电动机的电流值的单电流检测部 电动机，脉宽调制信号生成部，其根据由电流检测部检测出的电流值和载波信号，在一个控制周期内生成各相的多个脉宽调制;以及相位移动部，用于使脉宽调制信号 通过在一个控制周期中逐渐改变相位的移动量，并且将所得到的脉宽调制信号输出到驱动部分，由脉冲宽度调制信号产生部分生成预定相位。
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公开(公告)号：US09337755B2
公开(公告)日：2016-05-10
申请号：US14477467
申请日：2014-09-04
CPC分类号： H02P6/16 , B62D5/046 , H02P6/28 , H02P2205/01
摘要： A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to the number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of ON or OFF operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of a PWM signals for turning the switching elements ON or OFF on the basis of a deviation between a current value of the current detected by the current detector and a target current value.
摘要翻译： 电动机控制装置具有逆变器电路，其具有设置成与相数相对设置的多对上下臂，以及设置在驱动电动机的各相的每个上臂和下臂上的开关元件 基于各个开关元件的ON或OFF操作，检测流经逆变器电路的电动机的电流的单个电流检测器，以及计算用于使开关元件接通或关闭的PWM信号的占空比的占空比计算器 基于由电流检测器检测的电流的电流值与目标电流值之间的偏差。
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公开(公告)号：US20090134822A1
公开(公告)日：2009-05-28
申请号：US12277025
申请日：2008-11-24
IPC分类号： H02P6/08
CPC分类号： H02P27/08 , H02M7/53875 , H02M7/5395 , H02M2001/0009 , H02P29/50
摘要： A controller of a multi-phase electric motor has a drive section having an upper arm switching element and a lower arm switching element for driving the multi-phase electric motor, a single current detection section for detecting a current value of the multi-phase electric motor, a pulse width modulation signal generation section for generating plural pulse width modulation of each phase within one control period based on the current value detected by the current detection section and a carrier signal, and a phase movement section for moving the pulse width modulation signal of a predetermined phase generated by the pulse width modulation signal generation section by gradually changing a movement amount of the phase in one control period, and outputting the resultant pulse width modulation signal to the drive section.
摘要翻译： 多相电动机的控制器具有驱动部，该驱动部具有用于驱动多相电动机的上臂开关元件和下臂开关元件，用于检测多相电动机的电流值的单电流检测部 电动机，脉宽调制信号生成部，其根据由电流检测部检测出的电流值和载波信号，在一个控制周期内生成各相的多个脉宽调制;以及相位移动部，用于使脉宽调制信号 通过在一个控制周期中逐渐改变相位的移动量，并且将所得到的脉宽调制信号输出到驱动部分，由脉冲宽度调制信号产生部分生成预定相位。
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公开(公告)号：US20200235692A1
公开(公告)日：2020-07-23
申请号：US16746129
申请日：2020-01-17
申请人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
发明人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
IPC分类号： H02P27/08 , H02M7/5387 , H02M1/088
摘要： Provided is a motor control device that includes a controller outputting a PWM control signal for controlling a multiphase electric motor, a driving signal generator generating a switching element driving signal for driving the multiphase electric motor according to the PWM control signal output from the controller, and a bridge circuit configured of a plurality of semiconductor switching elements switching a current flowing through the multiphase electric motor according to the switching element driving signal generated by the driving signal generator. The controller is provided on a first board. The driving signal generator and the bridge circuit are provided on a second board and are connected by wiring provided on the second board. The first board and the second board are connected by a predetermined inter-board connecting line. The controller outputs the PWM control signal to the driving signal generator through the predetermined inter-board connecting line.
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公开(公告)号：US07952310B2
公开(公告)日：2011-05-31
申请号：US12266339
申请日：2008-11-06
申请人： Masamitsu Hamasaki
发明人： Masamitsu Hamasaki
CPC分类号： H02P6/14 , H02M7/5395 , H02M2001/0009
摘要： A controller of a multi-phase electric motor includes a drive section for driving the multi-phase electric motor, a single current detection section for detecting a current value of the multi-phase electric motor, a pulse width modulation signal (PWM) generation section for generating a PWM signal of each phase based on the current value detected by the current detection section and a saw-tooth signal having a predetermined frequency, a current detectability determination section for determining whether or not the current value is detectable in the current detection section based on the PWM signal of each phase generated by the PWM signal generation section, and a switching number determination section for determining whether or not conducting number of the upper arm switching element is an even number or an odd number based on the determination that the current is not detectable by the current detectability determination section.
摘要翻译： 多相电动机的控制器包括用于驱动多相电动机的驱动部分，用于检测多相电动机的电流值的单个电流检测部分，脉冲宽度调制信号（PWM）产生部分 用于基于由电流检测部分检测的电流值和具有预定频率的锯齿信号来产生每相的PWM信号;电流检测能力确定部分，用于在当前检测部分中确定电流值是否可检测 基于由PWM信号生成部生成的各相的PWM信号，以及切换次数确定部，用于基于当前的确定来确定上臂开关元件的导通数量是偶数还是奇数 不能被电流检测判定部检测出。
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公开(公告)号：US20130033209A1
公开(公告)日：2013-02-07
申请号：US13564284
申请日：2012-08-01
申请人： Hiromi Murata , Masamitsu Hamasaki
发明人： Hiromi Murata , Masamitsu Hamasaki
IPC分类号： H02P6/08
CPC分类号： B62D5/0484 , B62D5/049 , H02P6/28 , H02P23/14
摘要： A motor control device has a motor driving circuit for driving a motor, a current detection circuit for detecting a motor current flowing through the motor driving circuit, and a controller for calculating a detected value of the motor current based on an output of the current detection circuit, comparing the detected value with a target value of the motor current, and generating a command value for allowing a motor current of the target value to flow through the motor based on a deviation therebetween, to output the command value to a motor driving circuit. The current detection circuit is configured of a first current detection circuit having a positive first gain and a second current detection circuit having a negative second gain obtained by inverting the first gain.
摘要翻译： 电动机控制装置具有用于驱动电动机的电动机驱动电路，用于检测流过电动机驱动电路的电动机电流的电流检测电路，以及基于电流检测的输出来计算电动机电流的检测值的控制器 电路，将检测值与电动机电流的目标值进行比较，并且生成用于使目标值的电动机电流基于它们之间的偏差流过电动机的指令值，以将指令值输出到电动机驱动电路 。 电流检测电路由具有正的第一增益的第一电流检测电路和具有通过反转第一增益而获得的负第二增益的第二电流检测电路构成。
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