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公开(公告)号：US20180287538A1
公开(公告)日：2018-10-04
申请号：US15941343
申请日：2018-03-30
Applicant: DENSO CORPORATION
Inventor： Kotaro Nakashima , Nobuyori Nakajima , Takafumi Sato , Akira Takesaki , Takashi Suzuki
IPC: H02P21/22 , H02P27/08 , H02P29/024 , H02P21/00 , B62D5/04
Abstract: A control apparatus for a multi-phase rotating electric machine includes at least one electric power converter, a command value calculator and an input voltage determiner. The at least one electric power converter converts DC power into multi-phase AC power and supplies the multi-phase AC power to the rotating electric machine. The command value calculator calculates command values for operating the at least one electric power converter. The input voltage determiner determines whether an input voltage of the at least one electric power converter is within a normal operation range. When the input voltage is determined by the input voltage determiner to be outside the normal operation range, the control apparatus switches control to ignore voltage change or current change caused by the reverse input of an external force to the rotating electric machine from a load side or suppress control fluctuation caused by the reverse input of the external force.
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公开(公告)号：US12116052B2
公开(公告)日：2024-10-15
申请号：US17662118
申请日：2022-05-05
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , JTEKT CORPORATION
Inventor： Akira Takesaki , Hisashi Kameya , Hiroki Tomizawa , Masaharu Yamashita , Kenji Shibata , Yosuke Yamashita , Shintaro Takayama , Toshihiro Takahashi , Yuji Fujita , Kenichi Abe , Yugo Nagashima
CPC classification number: B62D5/0487 , B62D5/046 , B62D6/00
Abstract: Control calculation units of a back system in each actuator operate by a collaborative drive mode in which a torque is output to a motor drive unit by using an information transmitted and received mutually by a communication between the systems in common. Cooperative control calculation units in a reaction force actuator and a turning actuator can operate in cooperation with each other based on the information transmitted and received mutually by a communication between actuators. A communication between adjacent systems and a communication between adjacent actuators are restored, when a focus control calculation unit is restored, after the focus control calculation unit is stopped during operation and at least one of the communication between adjacent systems or the communication between adjacent actuators is interrupted.
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Patent Agency Ranking
公开(公告)号：US20180167004A1
公开(公告)日：2018-06-14
申请号：US15833818
申请日：2017-12-06
Applicant: DENSO CORPORATION
Inventor： Haruo Suzuki , Akira Takesaki , Hiroyasu Otake
CPC classification number: H02P6/28 , B62D5/0409 , B62D5/0463 , B62D5/0469 , B62D6/02 , B62D6/10 , H02P6/00 , H02P6/06 , H02P6/08 , H02P6/17 , H02P6/21 , H02P21/05 , H02P21/06 , H02P21/22
Abstract: In an apparatus, an execution determiner determines, for each of sequential first and second motor control cycles, whether to execute a voltage correction task for a voltage command, and obtains, for each of the first and second motor control cycles, a voltage correction as a function of a fundamental voltage correction and the determination result. A voltage corrector corrects, for each of the first and second motor control cycles, the voltage command based on the voltage correction. A correction voltage feedback unit feeds back a value of the voltage correction calculated at the first motor control cycle to a voltage command calculator. The voltage command calculator calculates a value of the voltage command for the second motor control cycle based on the value of the voltage correction fed back from the correction voltage feedback unit in addition to a value of the motor current parameter and a predetermined current command.
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公开(公告)号：US20170005600A1
公开(公告)日：2017-01-05
申请号：US15195638
申请日：2016-06-28
Applicant: DENSO CORPORATION
Inventor： Akira Takesaki , Nobuyori Nakajima
Abstract: A rotating electric machine control device includes: a q-axis PI controller calculating a pre-restriction q-axis voltage instruction value based on a q-axis voltage detection value and a q-axis current instruction value; a first q-axis restricter calculating a post-restriction q-axis voltage instruction value by restricting the pre-restriction q-axis voltage instruction value, for an excess of output exceeding a maximum outputtable voltage V_max; a correction value calculator calculating a q-axis correction value that has a reverse phase of a ripple current of a q-axis current; and a corrector correcting the post-restriction q-axis voltage instruction value with the q-axis correction value. In such manner, even when the pre-restriction q-axis voltage instruction value is saturated, a ripple current is reduced, thereby reducing a sound and/or a vibration caused by the ripple current.
Abstract translation: 旋转电机控制装置包括：q轴PI控制器，其基于q轴电压检测值和q轴电流指令值计算预限制q轴电压指令值; 第一q轴限制器，通过限制超过最大可输出电压V_max的超过输出的限制前q轴电压指令值来计算限制后q轴电压指令值; 校正值计算器，计算具有q轴电流的纹波电流的反相的q轴校正值; 以及校正器，其用q轴校正值校正后限制q轴电压指令值。 这样，即使在预先限制的q轴电压指令值饱和的情况下，纹波电流也降低，从而降低由纹波电流引起的声音和/或振动。
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公开(公告)号：US11018611B2
公开(公告)日：2021-05-25
申请号：US15941343
申请日：2018-03-30
Applicant: DENSO CORPORATION
Inventor： Kotaro Nakashima , Nobuyori Nakajima , Takafumi Sato , Akira Takesaki , Takashi Suzuki
Abstract: A control apparatus for a multi-phase rotating electric machine includes at least one electric power converter, a command value calculator and an input voltage determiner. The at least one electric power converter converts DC power into multi-phase AC power and supplies the multi-phase AC power to the rotating electric machine. The command value calculator calculates command values for operating the at least one electric power converter. The input voltage determiner determines whether an input voltage of the at least one electric power converter is within a normal operation range. When the input voltage is determined by the input voltage determiner to be outside the normal operation range, the control apparatus switches control to ignore voltage change or current change caused by the reverse input of an external force to the rotating electric machine from a load side or suppress control fluctuation caused by the reverse input of the external force.
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公开(公告)号：US10333440B2
公开(公告)日：2019-06-25
申请号：US15833818
申请日：2017-12-06
Applicant: DENSO CORPORATION
Inventor： Haruo Suzuki , Akira Takesaki , Hiroyasu Otake
IPC: H02P6/00 , H02P6/08 , H02P6/28 , H02P6/17 , B62D5/04 , B62D6/10 , H02P21/22 , B62D6/02 , H02P6/06 , H02P6/21 , H02P21/05 , H02P21/06
Abstract: In an apparatus, an execution determiner determines, for each of sequential first and second motor control cycles, whether to execute a voltage correction task for a voltage command, and obtains, for each of the first and second motor control cycles, a voltage correction as a function of a fundamental voltage correction and the determination result. A voltage corrector corrects, for each of the first and second motor control cycles, the voltage command based on the voltage correction. A correction voltage feedback unit feeds back a value of the voltage correction calculated at the first motor control cycle to a voltage command calculator. The voltage command calculator calculates a value of the voltage command for the second motor control cycle based on the value of the voltage correction fed back from the correction voltage feedback unit in addition to a value of the motor current parameter and a predetermined current command.
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公开(公告)号：US09935567B2
公开(公告)日：2018-04-03
申请号：US15195638
申请日：2016-06-28
Applicant: DENSO CORPORATION
Inventor： Akira Takesaki , Nobuyori Nakajima
Abstract: A rotating electric machine control device includes: a q-axis PI controller calculating a pre-restriction q-axis voltage instruction value based on a q-axis voltage detection value and a q-axis current instruction value; a first q-axis restricter calculating a post-restriction q-axis voltage instruction value by restricting the pre-restriction q-axis voltage instruction value, for an excess of output exceeding a maximum outputtable voltage V_max; a correction value calculator calculating a q-axis correction value that has a reverse phase of a ripple current of a q-axis current; and a corrector correcting the post-restriction q-axis voltage instruction value with the q-axis correction value. In such manner, even when the pre-restriction q-axis voltage instruction value is saturated, a ripple current is reduced, thereby reducing a sound and/or a vibration caused by the ripple current.
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