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公开(公告)号：US20200180685A1
公开(公告)日：2020-06-11
申请号：US16702912
申请日：2019-12-04
Applicant: DENSO CORPORATION
Inventor： Takashi SUZUKI , Shuji KURAMITSU , Nobuyori NAKAJIMA , Go ENDOH , Haruo SUZUKI , Koichi NAKAMURA , Yosuke OGI , Atsuko OKA
Abstract: A steering system in a vehicle includes a plurality of subsystems provided with a control unit. The control unit includes a storage unit storing steer angle information regarding a steer angle of one of a steering mechanism and a steered mechanism when the steering mechanism or the steered mechanism stops, an abnormality determiner determining abnormality of the motor rotation detection value and the detection circuit in the plurality of subsystems at a start time of a motor based on a comparison of at least two parameters, and a steer angle calculator calculating the steer angle based on the parameters having been determined by the abnormality determiner as not abnormal.
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2.发明公开公开(公告)号：US20230209436A1
公开(公告)日：2023-06-29
申请号：US18171618
申请日：2023-02-20
Applicant: DENSO CORPORATION
Inventor： Masayuki HOSHINO , Yosuke OGI
IPC: H04W40/08 , H04B17/318 , H04W4/48
CPC classification number: H04W40/08 , H04B17/318 , H04W4/48
Abstract: A communication technology for communication between at least one application and an external device uses subscriber identification modules that correspond, respectively, to wireless communication services. In the technology, first information for determination of a transmission power value is acquired for each of the wireless communication services. In the technology, second information for determination of a delay time allowed by the at least one application is acquired. In the technology, a wireless communication service is selected from among the wireless communication services for the communication based on the first information and the second information.
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公开(公告)号：US20190248407A1
公开(公告)日：2019-08-15
申请号：US16267743
申请日：2019-02-05
Applicant: DENSO CORPORATION
Inventor： Koichi NAKAMURA , Nobuyori NAKAJIMA , Go ENDOH , Yosuke OGI , Atsuko OKA
IPC: B62D5/04
CPC classification number: B62D5/0463 , B62D5/0481
Abstract: A steering control apparatus controlling an electric power steering apparatus includes a first control part and a second control part. The first control part communicates with an external device and executes a specific process. The second control part communicates with the first control part and executes the specific process. The first control part can acquire first information and second information. When all of the first information and the second information are positive, the first control part transmits positive information to the external device. When a part of the first information and the second information is negative, the first control part transmits negative information to the external device.
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4.发明公开公开(公告)号：US20230180103A1
公开(公告)日：2023-06-08
申请号：US18165034
申请日：2023-02-06
Applicant: DENSO CORPORATION
Inventor： Yosuke OGI , Masayuki Hoshino
CPC classification number: H04W48/04 , H04W74/0808
Abstract: By a wireless communication control device that controls a wireless communication device or a wireless communication control method, identification information for identifying the access point of a target network existing on a route of a vehicle is acquired, an on-route access point of the target network on the route is identified, communication status information regarding a communication status in a target communication range to which the vehicle comes close is acquired, and a frequency channel with less interference in wireless communication in the target communication range is predicted.
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Patent Agency Ranking
公开(公告)号：US20200207408A1
公开(公告)日：2020-07-02
申请号：US16711794
申请日：2019-12-12
Applicant: DENSO CORPORATION
Inventor： Koichi NAKAMURA , Nobuyori NAKAJIMA , Go ENDOH , Yosuke OGI , Atsuko OKA , Shuji KURAMITSU , Takashi SUZUKI , Haruo SUZUKI
Abstract: A motor controller for controlling a motor includes first and second angle sensors detecting motor rotation, and first and second detection circuits detecting rotation number information based on sensor output from the angle sensors. Further, the motor controller includes a steer angle information obtainer obtaining steer angle information involving steering of a vehicle from an external sensor, which is different from the angle sensors, and an abnormality determiner determining abnormality of information that has a matching degree of lower than a preset value when post-conversion information, or value measured by the same characteristics. This information is compared with each other after conversion from the rotation number information and from the steer angle information, and is used by a control amount calculator to calculate a control amount of the motor based on the information determined as having no abnormality by the abnormality determiner.
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公开(公告)号：US20190241214A1
公开(公告)日：2019-08-08
申请号：US16264282
申请日：2019-01-31
Applicant: DENSO CORPORATION
Inventor： Atsuko OKA , Nobuyori NAKAJIMA , Go ENDOH , Koichi NAKAMURA , Yosuke OGI
CPC classification number: B62D6/10 , B62D5/0463
Abstract: Inverter circuits are provided for motor winding sets, respectively. Control units are provided for the motor winding sets to generate control signals related to driving of the inverter circuits and control currents flowing through the motor winding sets, respectively, thereby controlling driving of a motor. The control mode includes a manual steering mode for controlling the motor according to a steering operation on a steering wheel by a driver and an automatic steering mode for controlling the motor independently of the steering operation on the steering wheel by the driver. The control units are capable of switching the control modes and differentiate the current control according to the control mode. By making the current control different according to the control mode, it is possible to attain optimal characteristics which correspond to each control mode.
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7.发明公开公开(公告)号：US20230176210A1
公开(公告)日：2023-06-08
申请号：US18165092
申请日：2023-02-06
Applicant: DENSO CORPORATION
Inventor： Yosuke OGI , Masayuki HOSHINO
IPC: G01S13/931 , H04W72/0446
CPC classification number: G01S13/931 , H04W72/0446 , G01S2013/9329
Abstract: By a wireless communication control device, a wireless communication device, or a wireless communication method, a vehicle speed of a vehicle is acquired, communication status information regarding a communication status in a communication range of an access point is acquired, a communication environment in the communication range of the access point is predicted based on the acquired communication status information.
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公开(公告)号：US20190260324A1
公开(公告)日：2019-08-22
申请号：US16405049
申请日：2019-05-07
Applicant: DENSO CORPORATION
Inventor： Shuji KURAMITSU , Koichi NAKAMURA , Atsuko OKA , Masaya TAKI , Hideki KABUNE , Yuki WATANABE , Toshimitsu SAKAI , Yosuke OGI
Abstract: A rotary electric device control device controls driving of a rotary electric device including a plurality of winding sets. The rotary electric device control device includes: a plurality of drive circuits; and a plurality of control units. The control units include signal output units for outputting control signals to the drive circuits corresponding to the control units, respectively, and communicate with each other. The control units include: one master control unit; and at least one slave control unit. An electric power steering device includes: a rotary electric device control device; the rotary electric device that outputs an assist torque for assisting a steering operation of a steering wheel by a driver; and a power transmission unit that transmits a driving force of the rotary electric device to a drive target.
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9.发明申请公开(公告)号：US20190256129A1
公开(公告)日：2019-08-22
申请号：US16405040
申请日：2019-05-07
Applicant: DENSO CORPORATION
Inventor： Atsuko OKA , Shuji KURAMITSU , Koichi NAKAMURA , Nobuyori NAKAJIMA , Go ENDOH , Yosuke OGI
Abstract: A rotary electric machine control device for controlling driving of a rotary electric machine including a plurality of winding sets, includes: a plurality of drive circuits; and a plurality of control units, each of which includes: an individual current limit value calculation unit; a current limit value calculation unit; and a control signal calculation unit. The current limit value calculation unit switches between a current limit value sharing mode and a current limit value non-sharing mode. An electric power steering device includes: the rotary electric machine control device; the rotary electric machine that outputs an assist torque for assisting a steering operation of a steering wheel by a driver; and a power transmission unit that transmits a driving force of the rotary electric machine to a drive target.
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