公开(公告)号：US20180069737A1

公开(公告)日：2018-03-08

申请号：US15806648

申请日：2017-11-08

Applicant: Renesas Electronics Corporation

Inventor： Yuji SHIMIZU ,  Akane HIROSHIMA ,  Yutaka ONO

IPC: H04L27/20 ,  H04L7/00

CPC classification number: H04L27/2053 ,  H04L7/0008 ,  H04L27/20

Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.

公开(公告)号：US20180076748A1

公开(公告)日：2018-03-15

申请号：US15699791

申请日：2017-09-08

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Reiji YAMASAKI ,  Yutaka ONO

IPC: H02P21/14 ,  H02P21/00 ,  G05B13/02 ,  H02P25/089

CPC classification number: H02P21/14 ,  G05B13/02 ,  H02P21/0021 ,  H02P21/13 ,  H02P21/18 ,  H02P25/089 ,  H02P2203/11

Abstract: In a sensorless control of a motor, due to the characteristic of a response frequency, an induced voltage, a magnetic pole position estimation gain, a current control gain, and a speed control gain are closely related. An object of the invention is to enable the induced voltage and the frequency characteristic of a magnetic pole position estimation system to be clearly designed and to theoretically and quantitatively design all of the control gains necessary for the sensorless control so as to solve a problem that a method of designing those parameters cannot be established and the parameters have to be adjusted in a try and error manner. A control device has an estimator estimating an estimation induced voltage and a phase error of a motor by applying an induced-voltage observer and a controller controlling the motor on the basis of the estimation induced voltage and the phase error.

公开(公告)号：US20170250701A1

公开(公告)日：2017-08-31

申请号：US15441868

申请日：2017-02-24

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Akane HIROSHIMA ,  Yuji SHIMIZU ,  Yutaka ONO

IPC: H03M1/48 ,  H02K11/225

CPC classification number: H03M1/485 ,  G01B7/30 ,  G01D5/2053 ,  H02K11/225 ,  H02P6/16 ,  H03M1/201

Abstract: The present invention provides a signal processor that improves a resolution of a phase detection without increasing a clock frequency of a controller or decreasing a frequency of an excitation signal. A signal processor 10 includes a comparator 11 that compares a signal obtained by phase modulating a carrier frequency at a rotor rotation angle of a resolver with a dither signal.

公开(公告)号：US20170222850A1

公开(公告)日：2017-08-03

申请号：US15484285

申请日：2017-04-11

Applicant: Renesas Electronics Corporation

Inventor： Yuji SHIMIZU ,  Akane HIROSHIMA ,  Yutaka ONO

IPC: H04L27/20 ,  H04L7/00

CPC classification number: H04L27/2053 ,  H04L7/0008 ,  H04L27/20

Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.

公开(公告)号：US20190260318A1

公开(公告)日：2019-08-22

申请号：US16399253

申请日：2019-04-30

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Reiji YAMASAKI ,  Yutaka ONO

IPC: H02P21/14 ,  G05B13/02 ,  H02P25/089 ,  H02P21/13 ,  H02P21/00 ,  H02P21/18

Abstract: In a sensorless control of a motor, due to the characteristic of a response frequency, an induced voltage, a magnetic pole position estimation gain, a current control gain, and a speed control gain are closely related. An object of the invention is to enable the induced voltage and the frequency characteristic of a magnetic pole position estimation system to be clearly designed and to theoretically and quantitatively design all of the control gains necessary for the sensorless control so as to solve a problem that a method of designing those parameters cannot be established and the parameters have to be adjusted in a try and error manner. A control device has an estimator estimating an estimation induced voltage and a phase error of a motor by applying an induced-voltage observer and a controller controlling the motor on the basis of the estimation induced voltage and the phase error.

公开(公告)号：US20180324011A1

公开(公告)日：2018-11-08

申请号：US16034508

申请日：2018-07-13

Applicant: Renesas Electronics Corporation

Inventor： Yuji SHIMIZU ,  Akane HIROSHIMA ,  Yutaka ONO

IPC: H04L27/20 ,  H04L7/00

CPC classification number: H04L27/2053 ,  H04L7/0008 ,  H04L27/20

Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.

公开(公告)号：US20170317682A1

公开(公告)日：2017-11-02

申请号：US15497648

申请日：2017-04-26

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Yuji SHIMIZU ,  Akane HIROSHIMA ,  Yutaka ONO

IPC: H03L7/16 ,  H02K11/21 ,  G01D5/20 ,  H03H11/18

CPC classification number: H03L7/16 ,  G01D5/20 ,  G01D5/204 ,  H02K11/21 ,  H03H11/18

Abstract: A control apparatus includes, for at least two-phase signals detected from a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, a signal generator that generates a correction signal for canceling out an error component of the carrier signal, and a synthesizer that synthesizes the phase-shifted first phase signal, the phase-shifted second signal, and the correction signal for canceling out the error component, in order to create a phase-modulated signal that is the carrier signal being modulated at a rotation angle of a rotor of the resolver.

公开(公告)号：US20170041168A1

公开(公告)日：2017-02-09

申请号：US15159840

申请日：2016-05-20

Applicant: Renesas Electronics Corporation

Inventor： Yuji SHIMIZU ,  Akane HIROSHIMA ,  Yutaka ONO

IPC: H04L27/20

CPC classification number: H04L27/2053 ,  H04L7/0008 ,  H04L27/20

Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.

Abstract translation: 对于由具有载波频率fc的载波信号激励的解析器所检测到的至少两相信号，信号转换器100包括：第一移相器101，用一个极点移位旋转变压器的第一相位信号的相位， 频率f1低于载波频率fc;第二移相器102，其以比载波频率fc高的频率f2的极点移位旋转变压器的第二相位信号的相位，以及合成器103，其将相移 具有相移第二相位信号的第一相位信号。