公开(公告)号：JP2008193800A

公开(公告)日：2008-08-21

申请号：JP2007025299

申请日：2007-02-05

Applicant: Denso Corp ,  株式会社デンソー

Inventor： AKAMA SADAHIRO ,  AZUMA HIDEJI ,  UEDA NOBUTADA ,  OSADA KIYOSHI ,  OTAKE AKIYA ,  KURODA MASAHIRO

IPC: H02P6/16 ,  H02M7/00

Abstract: PROBLEM TO BE SOLVED: To solve the following problem: a zero cross timing when an induction voltage of a brushless motor 10 is a reference voltage vref is easily detected by mistake in a situation that the operation speed of the brushless motor 10 varies. SOLUTION: Terminal voltages vu, vv, vw of phases are respectively compared with the reference voltage vref in comparators Cur, Cvr, Cwr, compared with a positive pole voltage VB of a battery 14 in comparators Cub, Cvb, Cwb, and compared with a negative pole voltage of the battery 14 in comparators Cug, Cvg, Cwg. Logical OR circuits ORu, ORv, ORw generate logic reverse signals of output signals of the comparators Cug, Cvg, Cwg, and generate mask signals mu, mv, vw on the basis of the output signals of the comparators Cub, Cvb, Cwb. Exclusive OR circuits EXu, EXv, EXw generate comparison signals pu, pv, pw on the basis of temporary comparison signals pu0, pv0, pw0 outputted from the comparators Cur, Cvr, Cwr and the mask signals mu, mv, vw. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决以下问题：在无刷电动机10的运转速度变化的情况下，容易检测无刷电动机10的感应电压为基准电压vref时的零交叉定时 。 解决方案：与比较器Cub，Cvb，Cwb和...中的电池14的正极电压VB相比，相位的端子电压vu，vv，vw分别与比较器Cur，Cvr，Cwr中的参考电压vref进行比较 与比较器Cug，Cvg，Cwg中的电池14的负极电压相比。 逻辑OR电路ORu，ORv，ORw产生比较器Cug，Cvg，Cwg的输出信号的逻辑反向信号，并且基于比较器Cub，Cvb，Cwb的输出信号生成屏蔽信号mu，mv，vw。 基于从比较器Cur，Cvr，Cwr和掩蔽信号mu，mv，vw输出的临时比较信号pu0，pv0，pw0，异或电路EXu，EXv，EXw产生比较信号pu，pv，pw。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008148379A

公开(公告)日：2008-06-26

申请号：JP2006329430

申请日：2006-12-06

Applicant: Denso Corp ,  株式会社デンソー

Inventor： UEDA NOBUTADA ,  AZUMA HIDEJI ,  AKAMA SADAHIRO ,  KURODA MASAHIRO ,  OSADA KIYOSHI ,  OTAKE AKIYA

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a motor drive that starts a brushless DC motor, in a short time using a simpler constitution.
SOLUTION: When the motor drive 1 starts a brushless DC motor 2 through forced commutation, a gate drive circuit 5 limits the current flowing through the windings 2U-2W of the motor 2 to the upper limit level, set higher than the level of a current flowing, when the motor 2 goes into steady state steady rotational state.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供使用更简单的结构在短时间内启动无刷DC电动机的电动机驱动。 解决方案：当电机驱动器1通过强制换向启动无刷直流电动机2时，栅极驱动电路5将流过电动机2的绕组2U-2W的电流限制到高于电平的电平 当电机2进入稳态稳定旋转状态时，电流流动。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2013198299A

公开(公告)日：2013-09-30

申请号：JP2012062937

申请日：2012-03-20

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TERA TAKAHIRO ,  TAKI HIROSHI ,  OBAYASHI RIKI ,  KURODA MASAHIRO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a motor control device which can detect the magnetic pole position of a rotor with high accuracy by a simple method, over a wide operation range from a low speed time to a high speed time.SOLUTION: A switching element is operated so that a first switching state in which, when a motor 10 is energized from a first phase to a second phase, the first phase has electricity conducted to the high potential side input terminal of an inverter 12 and the second phase has electricity conducted to the low potential side input terminal of the inverter 12 and a second switching state in which the first phase has electricity conducted to the low potential side input terminal of an inverter 12 and the second phase has electricity conducted to the high potential side input terminal of the inverter 12 are alternately changed, as a voltage is applied to the motor 10. On the basis of detection of a zero-cross timing at which an induction voltage generated at a third phase terminal matches a reference voltage, on condition that it occurred in a period while the first switching state was on, the magnetic pole position of the rotor of the motor 10 is detected.

Abstract translation: 要解决的问题：提供一种电动机控制装置，其可以通过简单的方法在从低速时间到高速时间的宽操作范围内以高精度检测转子的磁极位置。解决方案：开关元件 被操作成使得当电动机10从第一相通电到第二相时，第一相具有导通到逆变器12的高电位侧输入端的电力的第一开关状态，并且第二相具有电导通 到逆变器12的低电位侧输入端子的第二开关状态和第一相位具有向逆变器12的低电位侧输入端子导通的电力的第二开关状态，并且第二相位具有向高电位侧输入端子 随着电压被施加到电动机10，逆变器12交替地改变。基于在第三阶段产生的感应电压的零交叉定时的检测 端子匹配参考电压，条件是在第一开关状态为导通期间发生的情况下，检测到电动机10的转子的磁极位置。

公开(公告)号：JP2009165298A

公开(公告)日：2009-07-23

申请号：JP2008001953

申请日：2008-01-09

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KURODA MASAHIRO ,  TAKI HIROSHI ,  UEDA NOBUTADA

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To solve the problem that the neutral point voltage of a brushless motor fluctuates largely, which causes noise, when driving the brushless motor by 120-degree energization process and PWM process. SOLUTION: In the 120-degree energization process, respective ones of switching elements SW1, SW3 and SW5 of a high side arm and switching elements SW2, SW4 and SW6 of a low side arm of a power conversion circuit are turned on. In the PWM process, the switching elements of the power conversion circuit turn on/off so that two phases that are connected to the on-switching elements that are in the on-state are alternately made conductive to the high potential side input terminal and the low potential side input terminal of the power conversion circuit. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题为了解决无刷电动机的中性点电压大幅度波动，引起噪声的问题，通过120度通电处理和PWM处理来驱动无刷电动机。 解决方案：在120度通电过程中，高侧臂的开关元件SW1，SW3和SW5以及功率转换电路的低侧臂的开关元件SW2，SW4和SW6中的各个导通。 在PWM处理中，功率转换电路的开关元件导通/截止，使得与接通状态的开关元件连接的两相交替地导通到高电位侧输入端，并且 电源转换电路的低电位侧输入端子。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2013146136A

公开(公告)日：2013-07-25

申请号：JP2012005354

申请日：2012-01-13

Applicant: Asmo Co Ltd ,  アスモ株式会社 ,  Denso Corp ,  株式会社デンソー

Inventor： NAKAYAMA TAKAHIRO ,  NAKAMACHI KOJI ,  KURODA MASAHIRO

IPC: H02P6/18 ,  H02K1/00 ,  H02P27/06

Abstract: PROBLEM TO BE SOLVED: To provide a motor apparatus capable of being appropriately controlled without need for a sensor for detecting a rotational angle, by improving detection accuracy of a phase of line-to-line induction voltage.SOLUTION: The motor apparatus includes: a stator in which a multi-phase coil is wound around teeth; a motor that drives rotation of a rotor by energizing the coil; an inverter that controls an electric current energizing the coil; and a control section that detects a zero cross timing of a line-to-line current running between coils of respective phases and a zero cross timing of a variation in the line-to-line current and detects a rotational position of the rotor when an optional two-phase coil is short-circuited, and further includes inductances of the respective coils.

Abstract translation: 要解决的问题：通过提高线间感应电压的相位的检测精度，提供能够适当地控制而不需要用于检测旋转角度的传感器的电动机装置。解决方案：电动机装置包括： 多圈线圈缠绕在其上的定子; 电动机，通过使线圈通电来驱动转子的旋转; 控制对线圈通电的逆变器; 以及控制部，其检测各相线圈之间的线间电流的零交叉定时和所述线间电流的变化的零交叉定时，并检测所述转子的旋转位置 可选的两相线圈短路，并且还包括各线圈的电感。

公开(公告)号：JP2011036083A

公开(公告)日：2011-02-17

申请号：JP2009181831

申请日：2009-08-04

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TERA TAKAHIRO ,  KURODA MASAHIRO ,  OTAKE AKIYA

IPC: H02P6/18

CPC classification number: H02P6/18 ,  H02P6/21

Abstract: PROBLEM TO BE SOLVED: To provide a method for driving a brushless three-phase DC motor shortening the time required for starting the motor and a driving controller for the motor. SOLUTION: In the method for driving the brushless three-phase DC motor, an estimation range consisting of a first angular range up to a position π/2-radian angular-displaced in the direction of rotation X from a reference position positioning a nonconducting phase winding (a W-phase winding 13) and a second angular range having the relationship of a point symmetry with the first angular range regarding a center of rotation is detected as the position of a magnetic pole for a rotor 15 in response to the result of a comparison between an induced voltage and a reference voltage at a position detecting step. The positioning angle of the rotor 15 is determined within an angular range not included within the detected estimation range, but within a range (the range of 0 to 60° and 330 to 360°) consisting of an angle within a π/2 radian, at a position determining step. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种驱动无刷三相直流电动机的方法，其缩短启动电动机所需的时间和电动机的驱动控制器。 解决方案：在用于驱动无刷三相直流电动机的方法中，估计范围包括从参考位置定位到旋转方向X上角位移的位置π/ 2弧度的第一角度范围 作为响应于转子15的磁极的位置，检测非对称相绕组（W相绕组13）和具有与第一角度范围的点对称关系的关于旋转中心的关系的第二角度范围 在位置检测步骤中的感应电压和参考电压之间的比较的结果。 在不包括在检测到的估计范围内的角度范围内，但是在由π/ 2弧度内的角度构成的范围（0〜60°，330°〜360°）的范围内确定转子15的定位角度， 在位置确定步骤。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009165297A

公开(公告)日：2009-07-23

申请号：JP2008001952

申请日：2008-01-09

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KURODA MASAHIRO ,  UEDA NOBUTADA ,  AKAMA SADAHIRO ,  OSADA KIYOSHI ,  OTAKE AKIYA

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To solve the problem that the start-up time of a brushless motor is increased in a controller which is equipped with a positioning means that controls the rotating angle of the brushless motor at its final angle through an intermediate angle. SOLUTION: The controller controls the rotating angle at a first positioning target angle by first positioning in which a current is applied from specific one phase to the other phase, and then, controls the rotating angle at a second positioning target angle by second positioning in which a current is applied from one phase to the other phase while changing the phases. The duration (a first given time T1) of the first positioning is set as follows. The first given time T1 is set so that the amplitude of the vibration of the rotation angle becomes smaller than the angle interval between the first positioning target angle and the dead point of the second positioning process in damped oscillation in the vicinity of the first positioning target angle by the first positioning. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了解决在具有通过中间体控制无刷电动机的最终角度的无刷电动机的旋转角度的定位装置的控制器中增加无刷电动机的启动时间的问题 角度。 解决方案：控制器通过首先定位从特定的一个相位到另一个相位的电流来控制第一定位目标角度的旋转角度，然后将第二定位目标角度的旋转角度控制在第二定位目标角度 在改变相位的同时，从一个相位向另一个相位施加电流的定位。 第一定位的持续时间（第一给定时间T1）如下设置。 第一给定时间T1被设置为使得旋转角度的振动的振幅变得小于第一定位目标角附近的第一定位目标角度和第二定位处理的死点之间的角度间隔 角度由第一定位。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008206343A

公开(公告)日：2008-09-04

申请号：JP2007040958

申请日：2007-02-21

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KURODA MASAHIRO ,  AZUMA HIDEJI ,  UEDA NOBUTADA ,  AKAMA SADAHIRO ,  OSADA KIYOSHI ,  OTAKE AKIYA

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To accurately set an angle for a switching operation based on zero cross timing in which an induced voltage of a rotating electric machine becomes a reference voltage when a rotational speed varies in controlling the rotating electric machine by operating switching devices for a power converting circuit. SOLUTION: For the specified timing which is delayed by a predetermined angle from the zero cross timing in which the induced voltage of a brushless motor 10 meets the reference voltage vref, the switching devices SW1 to SW6 are switched. At this time, a prescribed time from the previous zero cross timing to the specified timing is set based on the interval of the previous two zero cross timings. However, the required time is corrected corresponding to the variation amount when the rotational speed of the brushless motor 10 varies. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了在通过操作切换来控制旋转电机时旋转速度变化时基于旋转电机的感应电压变为基准电压的零交叉定时来准确地设定开关操作的角度 用于电力转换电路的装置。 解决方案：对于从无刷电动机10的感应电压满足参考电压vref的零交叉定时延迟预定角度的指定定时，切换装置SW1至SW6被切换。 此时，基于前两个零交叉定时的间隔设定从前一个零交叉定时到指定定时的规定时间。 然而，当无刷电动机10的转速变化时，根据变化量校正所需时间。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008193812A

公开(公告)日：2008-08-21

申请号：JP2007025841

申请日：2007-02-05

Applicant: Denso Corp ,  株式会社デンソー

Inventor： AKAMA SADAHIRO ,  AZUMA HIDEJI ,  UEDA NOBUTADA ,  OSADA KIYOSHI ,  OTAKE AKIYA ,  KURODA MASAHIRO

IPC: H02P6/18 ,  H02P6/20

Abstract: PROBLEM TO BE SOLVED: To solve the following problem: a zero cross timing may be erroneously detected due to frequent crossing between a reference voltage vref to be defined by a temporary neutral point voltage and terminal voltages vu, vv, vw upon stopping of a brushless motor 10. SOLUTION: The terminal voltages vu, vv, vw of the brushless motor 10 and the reference voltage vref are input into comparators 24, 26, 28, respectively. Signal lines for applying the reference voltage vref into the comparators 24, 26, 28 are connected to the positive pole side of a battery 14 via a resistor 30. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了解决以下问题：由于临时中性点电压定义的参考电压vref与停止后的终端电压vu，vv，vw之间的频繁交叉，可能错误地检测到零交叉定时 无刷电动机10的解决方案：无刷电动机10的端子电压vu，vv，vw和参考电压vref分别输入到比较器24,26,28中。 用于将参考电压vref施加到比较器24,26,28中的信号线通过电阻器30连接到电池14的正极侧。（C）2008，JPO＆INPIT

公开(公告)号：JP2013150400A

公开(公告)日：2013-08-01

申请号：JP2012007368

申请日：2012-01-17

Applicant: Asmo Co Ltd ,  アスモ株式会社 ,  Denso Corp ,  株式会社デンソー

Inventor： NAKAYAMA TAKAHIRO ,  NAKAMACHI KOJI ,  KURODA MASAHIRO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a motor the output characteristics of which can be stabilized by detecting the zero-cross timing of variation in the line current of any two phases reliably, thereby detecting the rotational position of a rotor reliably.SOLUTION: The motor includes a motor having a stator with teeth around which a polyphase coil is wound, and rotary driving a rotor by electrifying the coil, an inverter performing PWM control of a current for electrifying the coil, and a control unit for detecting the rotational position of the rotor by detecting the zero-cross timing of a line induction voltage on the basis of the zero-cross timing of a line current flowing between respective phases of the coil, and the zero-cross timing of variation of the line current, and controlling the rotational position of the rotor by a command voltage. The electrical angle from the zero-cross timing of a line induction voltage UV to the boundary of a detectable range A of the zero-cross timing is set to an electrical angle equal to or larger than the detection period of the zero-cross timing of a line induction voltage UV.

Abstract translation: 要解决的问题：通过检测任何两相的线路电流的变化的零交叉时间可靠地提供可以稳定输出特性的电动机，从而可靠地检测转子的旋转位置。解决方案：电动机 包括具有齿的定子的电动机，缠绕有多相线圈的齿，以及通过使线圈通电来旋转驱动转子，对线圈通电的电流进行PWM控制的逆变器，以及用于检测线圈的旋转位置的控制单元 转子，其基于在线圈的各相之间流动的线电流的零交叉定时和线电流的变化的零交叉定时来检测线路感应电压的过零时间，并且控制 旋转位置通过指令电压转动。 从线路感应电压UV的零交叉定时到零交叉定时的可检测范围A的边界的电角度被设定为等于或大于零交叉定时的检测周期的电角度 线感应电压UV。