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公开(公告)号：US12227239B2
公开(公告)日：2025-02-18
申请号：US17934073
申请日：2022-09-21
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki
Abstract: A steering control device is configured to control steering of a vehicle by a steering actuator. The steering control includes a trajectory following control unit and an angle following control unit. The trajectory following control unit is configured to adjust a target angle of a steering angle given to a tire of the vehicle by a trajectory following control that causes a state quantity containing a position of the vehicle to follow a target trajectory. The angle following control unit is configured to adjust an instruction value that is given to the steering actuator and corresponds to an actual angle of the steering angle by an angle following control that causes the actual angle to follow the target angle. The trajectory following control unit is configured to forcibly set the target angle to be a fixed angle in a stop control period.
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公开(公告)号：US12024241B2
公开(公告)日：2024-07-02
申请号：US17242602
申请日：2021-04-28
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki , Motoaki Kataoka
CPC classification number: B62D5/0412 , B62D5/0463 , B62D6/10
Abstract: A steering control device performs an assist control for generating an assist command that generates an assist torque based on a steering torque. The steering control device acquires a target value of physical quantity related to a steering. The steering control device performs a tracking control for generating a tracking command that generates an automatic steering torque for causing a detection value of physical quantity to track the target value.
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3.发明公开公开(公告)号：US20230192181A1
公开(公告)日：2023-06-22
申请号：US18173459
申请日：2023-02-23
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki
CPC classification number: B62D5/046 , B62D15/025
Abstract: A steering control device for a steering member and a turning wheel, includes: a steering angle control unit for controlling an actual steering angle of the steering member via a steering actuator; a turning angle control unit for controlling an actual turning angle of the turning wheel via a turning actuator; and a target generation unit for generating a target steering angle as a control target and a target turning angle as a control target. Before controlling the actual turning angle toward the target turning angle to follow a planned trajectory for the vehicle, the steering angle control unit controls the actual steering angle toward the target steering angle to follow the planned trajectory.
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公开(公告)号：US11445304B2
公开(公告)日：2022-09-13
申请号：US16837258
申请日：2020-04-01
Applicant: DENSO CORPORATION
Inventor： Tatsuya Kamiya , Itaru Ishii , Tomoki Tanemura , Takashi Aoki , Tetsuya Katoh
Abstract: An ultrasonic sensor includes: an element storage case including a case-side diaphragm having a thickness direction along a directional axis; and an ultrasonic element accommodated in the element storage case and spaced apart from the case-side diaphragm. The ultrasonic element includes an element-side diaphragm having the thickness direction along the directional axis and provided by a thin part of a semiconductor substrate. The semiconductor substrate is arranged to provide a closed space between the case-side diaphragm and the element-side diaphragm. The semiconductor substrate is fixed and supported by the element-storage case.
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公开(公告)号：US11124227B2
公开(公告)日：2021-09-21
申请号：US16384187
申请日：2019-04-15
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki
Abstract: A steering control device (ECU) comprises a base assist unit for generating a basic assist torque and a steering torque correction unit. The steering torque correction unit outputs a corrected steering torque, which is decreasingly corrected so that an absolute value becomes smaller than an absolute value of a steering torque when a viscous load is requested to be applied to a driver by decreasing the assist torque. The base assist unit includes a target steering torque calculation unit and a servo controller. The target steering torque calculation unit calculates the target steering torque based on a steering torque. The servo controller calculates the basic assist torque to cause the corrected steering torque to follow the target steering torque.
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Patent Agency Ranking
公开(公告)号：US10377411B2
公开(公告)日：2019-08-13
申请号：US15695944
申请日：2017-09-05
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki
Abstract: In a steering control apparatus, a basic assistance torque calculating unit calculates a basic assistance torque. A correction torque calculating unit calculates a correction torque to be added to the basic assistance torque. In the correction torque calculating unit, a returning state determining unit determines whether a steering wheel is turning or returning. A returning speed stabilization control unit calculates a returning speed stabilization torque to stabilize a returning speed of the steering wheel, as the correction torque. The returning speed stabilization control calculates the returning speed stabilization torque such as to bring a second-order time differential value of steering wheel position-related information correlated with a steering wheel position closer to zero, and such that an absolute value of the returning speed stabilization torque when the steering wheel is returning is relatively greater than that when the steering wheel is turning.
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公开(公告)号：US10412282B2
公开(公告)日：2019-09-10
申请号：US15448236
申请日：2017-03-02
Applicant: DENSO CORPORATION
Inventor： Soji Masui , Yasuki Furutake , Daisuke Takama , Kazuma Yamaguchi , Takashi Aoki
Abstract: A camera device which includes a holder which retains an optical member therein and a circuit board on which an image sensor is mounted. The holder is joined to the circuit board using an adhesive agent. The circuit board at least partially includes a metallic layer and a resinous layer stacked in a thickness-wise direction of the circuit board. The circuit board has a metallic layer-absent portion in which the metallic layer is partially omitted. The metallic layer-absent portion is located so as to overlap the joint between the holder and the circuit board in the thickness-wise direction of the circuit board, thereby minimizing the transfer of heat of the adhesive agent to the metallic layer. This achieves effective hardening the adhesive agent, which will facilitate the ease with which the camera device is assembled.
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公开(公告)号：US10358161B2
公开(公告)日：2019-07-23
申请号：US15346608
申请日：2016-11-08
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki , Motoaki Kataoka , Yosuke Hirate
Abstract: A steering controller that controls a motor to output an assist torque to steer a steering member, including a steer property calculator calculating a steer state quantity that is an index of a steering state indicating one of (i) a steer-away state, (ii) a steer-back state, or (iii) a stay-still state, an adjusted torque calculator calculating an adjusted torque based on the steer state quantity, and an instruction value calculator calculating an assist torque instruction that is an instruction value regarding a drive of the motor by using the adjusted torque. In such manner, the steer state quantity, the steer-back operation, the stay-still operation of a steering wheel, and the adjusted torque are appropriately calculated, thereby enabling an appropriate adjustment of a steering feel.
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公开(公告)号：US20170257537A1
公开(公告)日：2017-09-07
申请号：US15448236
申请日：2017-03-02
Applicant: DENSO CORPORATION
Inventor： Soji Masui , Yasuki Furutake , Daisuke Takama , Kazuma Yamaguchi , Takashi Aoki
CPC classification number: H04N5/2254 , H04N5/2252 , H04N5/2253 , H04N5/2257 , H05K1/0274 , H05K1/056 , H05K1/09 , H05K1/181 , H05K2201/10121 , H05K2201/10151 , H05K2201/2018 , Y02P70/611
Abstract: A camera device which includes a holder which retains an optical member therein and a circuit board on which an image sensor is mounted. The holder is joined to the circuit board using an adhesive agent. The circuit board at least partially includes a metallic layer and a resinous layer stacked in a thickness-wise direction of the circuit board. The circuit board has a metallic layer-absent portion in which the metallic layer is partially omitted. The metallic layer-absent portion is located so as to overlap the joint between the holder and the circuit board in the thickness-wise direction of the circuit board, thereby minimizing the transfer of heat of the adhesive agent to the metallic layer. This achieves effective hardening the adhesive agent, which will facilitate the ease with which the camera device is assembled.
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公开(公告)号：US10556619B2
公开(公告)日：2020-02-11
申请号：US15697180
申请日：2017-09-06
Applicant: DENSO CORPORATION
Inventor： Takashi Aoki
Abstract: In a steering control apparatus, a basic assistance torque calculating unit calculates a basic assistance torque. A return control unit calculates a return control amount to assist in returning a steering wheel to a neutral position, as a correction torque to be added to the basic assistance torque. In the return control unit, a target steering speed calculating unit calculates a target steering speed being that is a target value for a steering speed. A return control amount calculating unit calculates the return control amount such that the steering speed follows the target steering speed. A returning state determining unit determines whether the steering wheel is turning or returning. The target steering speed calculating unit gradually increases an absolute value of the target steering speed from an absolute value of the steering speed when the steering wheel is returning.
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