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公开(公告)号：US12017628B2
公开(公告)日：2024-06-25
申请号：US16981165
申请日：2019-03-08
Applicant: ADVICS CO., LTD.
Inventor： Yusaku Yamamoto
CPC classification number: B60T8/1755 , B60T7/12 , B60W10/18 , B60W40/11 , B60T8/26 , B60T2230/04 , B60T2260/06 , B60T2270/608
Abstract: A brake control device is applied to a brake device that controls a front-wheel braking force and a rear-wheel braking force. The brake control device includes a ratio calculation circuit that calculates a target front and rear braking force distribution ratio based on a target pitch angle, and a brake control circuit that performs a stability control by operating the brake device based on the target front and rear braking force distribution ratio during braking.
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公开(公告)号：US20240200628A1
公开(公告)日：2024-06-20
申请号：US18556010
申请日：2022-05-25
Applicant: ADVICS CO., LTD.
Inventor： Junichi UJITA , Hiroki HASEGAWA
IPC: F16D69/02
CPC classification number: F16D69/028 , F16D2200/0021 , F16D2200/0043 , F16D2200/0069 , F16D2200/0086
Abstract: A friction material composition including a fiber substrate, a binder, an organic filler and an inorganic filler, wherein the content of copper in the friction material composition is 5% by mass or less in terms of elemental copper, and the friction material composition includes magnesite as the inorganic filler.
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公开(公告)号：US12015359B2
公开(公告)日：2024-06-18
申请号：US17802167
申请日：2021-03-08
Applicant: ADVICS CO., LTD.
Inventor： Yuya Horie , Tomoya Takahashi
Abstract: A current command value deriving unit of a motor control device derives a d-axis current command value and a q-axis current command value based on a torque current map and a torque command value. A voltage command value deriving unit executes a first process of deriving a d-axis voltage command value based on the d-axis current command value and deriving a q-axis voltage command value based on q-axis current command value, and a second process of deriving the d-axis voltage command value based on the q-axis current command value and deriving the q-axis voltage command value based on a limit voltage and the d-axis voltage command value. When a motor is driven by field-weakening control, the voltage command value deriving unit switches from the second process to the first process when it is determined that the voltage command value satisfying the torque command value is derivable by the first process.
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公开(公告)号：US20240140435A1
公开(公告)日：2024-05-02
申请号：US18488192
申请日：2023-10-17
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Yuta OHASHI , Mitsutaka TANIMOTO , Hidehisa KATO , Michihiro OTSUBO
IPC: B60W30/188 , B60W30/18
CPC classification number: B60W30/188 , B60W30/18109 , B60W2520/28
Abstract: A vehicle control device includes a processor. The processor calculates an instruction value of an operation request for controlling an operation of an actuator mounted on a vehicle based on a motion request from an application. The processor executes feedback control on the instruction value using a deviation between the motion request and a motion result of the vehicle that is calculated based on one of detection values of four wheel velocity sensors. The processor calculates the motion result in the feedback control based on a detection value indicating the second largest vehicle body velocity among the vehicle body velocities indicated by the detection values of the four wheel velocity sensors when the vehicle is braked.
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公开(公告)号：US20240140376A1
公开(公告)日：2024-05-02
申请号：US18546683
申请日：2022-03-30
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
IPC: B60T8/1755
CPC classification number: B60T8/17555 , B60T2230/04
Abstract: A braking control device includes a control unit that controls a braking force in accordance with an operation amount of a braking operation member, and a braking determination unit that determines whether or not a reduction in the operation amount of the braking operation member has been started when the braking force is applied to a vehicle due to the operation of the braking operation member. In a case where a reduction rate of the operation amount upon determination that the reduction in the operation amount has been started is equal to or larger than a reduction rate determination value, the control unit starts limitation processing of providing a limitation to the reduction rate of the braking force against the vehicle.
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Patent Agency Ranking
公开(公告)号：US20240132035A1
公开(公告)日：2024-04-25
申请号：US18547351
申请日：2022-03-28
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
CPC classification number: B60T8/885 , B60T8/171 , B60T8/172 , B60T8/17551 , B60T8/58 , B60T8/92 , B60T2220/04 , B60T2230/04 , B60T2240/00 , B60T2250/00 , B60T2250/04 , B60T2270/82
Abstract: A vehicle which adopts a control device as a braking control device includes a sensor that acquires a rotation angle of a wheel. The control device includes a first distance calculation unit, a second distance calculation unit, and a braking control unit. The first distance calculation unit sets a braking force corresponding to a braking operation member operation amount as a reference braking force, estimates vehicle longitudinal acceleration based on the reference braking force, and calculates a braking force reference distance estimating a moving distance until the vehicle stops based on the longitudinal acceleration. The second distance calculation unit calculates a wheel reference distance estimating the vehicle moving distance based on a detection signal of the sensor and a wheel diameter. The braking control unit executes feedback control for controlling the vehicle braking force so that a difference between the braking force reference distance and the wheel reference distance decreases.
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公开(公告)号：US11964656B2
公开(公告)日：2024-04-23
申请号：US16969431
申请日：2019-03-08
Applicant: ADVICS CO., LTD.
Inventor： Takuya Yasui
CPC classification number: B60W30/146 , B60W30/162 , B60W50/087 , B60W50/12 , B60W2520/105
Abstract: A travel control device assists automatic traveling of a vehicle by controlling a target vehicle speed, which is a target value of an actual vehicle speed, when making the vehicle travel to a target point. The travel control device includes a setting unit for executing a setting process for setting the course of the target vehicle speed until the vehicle reaches the target point, based on the actual vehicle speed and the target point. If a request to change the vehicle speed occurs during execution of the automatic traveling and the actual vehicle speed is changed based on the request, the setting unit executes a resetting process for resetting the course of the target vehicle speed, based on the actual vehicle speed when the request is canceled and a remaining distance from a position of the vehicle when the request is canceled to the target point.
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公开(公告)号：US11938916B2
公开(公告)日：2024-03-26
申请号：US17783218
申请日：2020-12-23
Applicant: ADVICS CO., LTD.
Inventor： Masahiro Hirata , Terushige Uraoka , Hirotaka Takeya
CPC classification number: B60T8/885 , B60T17/18 , B60T2201/06 , B60T2240/06 , B60T2270/40
Abstract: A brake control device as an example of the present disclosure includes: an acquisition unit configured to acquire an output of a sensor that detects information indicating a ground contact state of a drive wheel of a vehicle; and a control unit configured to, when an acceleration operation for causing the vehicle to accelerate is performed on the vehicle stopped due to a parking brake force generated by an electric parking brake, identify the ground contact state of the drive wheel based on the output of the sensor acquired by the acquisition unit, and control the electric parking brake to release the parking brake force by a control method that differs depending on the identified ground contact state.
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公开(公告)号：US11912256B2
公开(公告)日：2024-02-27
申请号：US17455771
申请日：2021-11-19
Applicant: ADVICS CO., LTD.
Inventor： Sotaro Muramatsu , Yosuke Hashimoto
Abstract: To suppress a sharp variation in the posture of a vehicle in a control apparatus that is configured to control the posture of the vehicle by adjusting a distribution ratio of a braking force between the front and rear during braking of the vehicle.
The control apparatus includes a distribution setting unit that is configured to change the braking force distribution ratio from a basic braking force ratio during braking of the vehicle so that a posture of the vehicle follows a posture indicated by the target posture value. If the target posture value is varied when the braking force distribution ratio is different from the basic braking force ratio, the distribution setting unit sets the amount of change, by which the braking force distribution ratio is changed per unit time, equal to or smaller than a restriction amount.-
公开(公告)号：US11858490B2
公开(公告)日：2024-01-02
申请号：US15734418
申请日：2019-06-27
Applicant: ADVICS CO., LTD.
Inventor： Terushige Uraoka
CPC classification number: B60T8/172 , B60T13/686 , B60T13/745 , B60T2250/04
Abstract: A brake control device according to an embodiment executes, for an electric braking wheel of either the front wheel and the rear wheel, a brake hold control for driving an electric braking device to move a propulsion shaft toward the braked member to be braked and bring it into contact with a piston, calculating a target braking force for maintaining the stationary state of the vehicle, subtracting a first braking force from the target braking force to calculate a required hydraulic braking force applied to the non-electric braking wheel different from the electric braking wheel, and controlling a differential pressure control valve connected to the non-electric braking wheel of the hydraulic braking device so that the required hydraulic braking force is applied to the non-electric braking wheel.
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