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公开(公告)号：US11220248B2
公开(公告)日：2022-01-11
申请号：US16611252
申请日：2018-05-23
Applicant: ADVICS CO., LTD.
Inventor： Tatsuya Hiromura , Yukio Mori
Abstract: A control device including a valve-opening control unit that reduces the current value below the holding current value and increases the opening degree of the differential pressure adjustment valve when an increase in a manipulated variable of a braking operation member has been detected while holding control is being performed; and a valve-closing control unit that, when a decrease in the manipulated variable of the braking operation member has been detected while the opening degree of the differential pressure adjustment valve has been increased by the valve-opening control unit, performs a pushing process of increasing the current value above the holding current value and closing the differential pressure adjustment valve, and a holding process of setting the current value to the holding current value after the pushing process has ended.
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公开(公告)号：US11198441B2
公开(公告)日：2021-12-14
申请号：US16484535
申请日：2018-02-23
Applicant: ADVICS CO., LTD.
Inventor： Masayuki Asano , Yukio Mori , Tatsuya Hiromura
IPC: B60W40/107 , B60W30/16 , B60W30/18 , B60W40/076
Abstract: This vehicle control device is provided with: a determination unit for determining whether proscribed conditions are satisfied, including the inability to determine that a longitudinal acceleration target value is fluctuating and the ability to determine that the longitudinal acceleration of a vehicle is fluctuating; and a cooperative control unit which, on the condition that it has been determined that the prescribed conditions are satisfied, performs a braking/driving cooperative process to hold a torque output from one of a driving torque generation device and a braking torque generation device at a value which is larger than the torque at the point in time at which the prescribed conditions were met, and adjusts the torque output from the other device through feedback control using the longitudinal acceleration target value and the longitudinal acceleration of the vehicle.
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公开(公告)号：US20210362698A1
公开(公告)日：2021-11-25
申请号：US16644004
申请日：2018-09-05
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito ISHIDA , Kunihiro NISHIWAKI , Tatsushi KOBAYASHI , Tomotaka ASANO , Ken KUZUYA , Takayuki YAMAMOTO
Abstract: A braking control device includes an upstream mechanism control unit, a determination unit, and a control unit. The upstream mechanism control unit is configured to feedback control the upstream mechanism in such a manner that a detected hydraulic pressure detected by a hydraulic pressure sensor is brought to an upstream target hydraulic pressure. The hydraulic pressure sensor detects a hydraulic pressure of the hydraulic pressure circuit. The determination unit is configured to determine, based on the detected hydraulic pressure by the hydraulic pressure sensor, whether hydraulic pressure hunting is occurring. The control unit is configured to control the downstream mechanism based on the upstream target hydraulic pressure and the target wheel pressure in a case where the determination unit determines that the hydraulic pressure hunting is occurring.
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公开(公告)号：US11180123B2
公开(公告)日：2021-11-23
申请号：US16476702
申请日：2018-01-10
Applicant: ADVICS CO., LTD.
Inventor： Yasuhito Ishida , Takayuki Yamamoto
Abstract: This vehicle control system is provided with an input monitoring unit and a determination time changing unit. When a state in which first target data is not input to a second control unit continues for a first determination time or longer, the input monitoring unit determines the first target data to be in a non-input state. When a state in which second target data is not input to the second control unit continues for a second determination time or longer, the input monitoring unit determines the second target data to be in a non-input state. When the first target data is determined to be in a non-input state, the determination time changing unit shortens the second determination time.
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公开(公告)号：US20210323525A1
公开(公告)日：2021-10-21
申请号：US17288047
申请日：2019-11-18
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO
Abstract: A vehicle braking device provided with a hydraulic circuit having a first system, a second system, and a connection flow channel connecting both systems. The vehicle braking device includes a fluid supply unit supplying fluid to the first system, a first braking unit, for applying a braking force to a first wheel by using the fluid flowing in the first system, a second braking unit, for applying a braking force to a second wheel by using the fluid flowing in the second system, a determination unit for determining whether the fluid is leaking from the second system, and a control unit for executing specific control for controlling the fluid supply unit so that an amount of fluid supplied to the first system is increased in response to determination by the determination unit that the fluid is leaking from the second system.
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Patent Agency Ranking
公开(公告)号：US20210320604A1
公开(公告)日：2021-10-14
申请号：US17273431
申请日：2019-09-03
Applicant: ADVICS CO., LTD.
Inventor： Hikaru KAWAMURA , Tomoya TAKAHASHI
IPC: H02P21/18 , H02P21/24 , H02P21/22 , H02P6/18 , G01R19/165
Abstract: A motor control device includes an acquisition unit that obtains a q-axis current component of a current vector generated when electricity is supplied to a brushless motor to generate a voltage vector along a direction of an estimated d-axis; a correction unit that corrects the direction of the estimated d-axis according to the q-axis current component to approach the direction of the estimated d-axis approach to the direction of the actual d-axis; and a control axis changing unit that changes the estimated d-axis direction by a prescribed angle when a magnitude of the q-axis current component is less than a threshold value by the correction of the direction of the estimated d-axis by the correction unit for the first time after the control axis setting control start or when a magnitude of the q-axis current component is less than the threshold value at the control axis setting control start.
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公开(公告)号：US20210221231A1
公开(公告)日：2021-07-22
申请号：US15733910
申请日：2019-06-24
Applicant: ADVICS CO., LTD.
Inventor： Masaki MARUYAMA , Shunya WATANABE
Abstract: A brake control device applied to a vehicle including a regenerative generator connected to a front wheel has an electric pump, and first and second pressure adjustment valves. The first pressure adjustment valve is provided in a brake fluid reflux path including the electric pump, adjusts the brake fluid to a first hydraulic pressure, and adjusts a rear wheel hydraulic pressure in a rear wheel cylinder to the first hydraulic pressure. The second pressure adjustment valve is provided in the reflux path, reduces the first hydraulic pressure to a second hydraulic pressure, and adjusts front wheel hydraulic pressure in a front wheel cylinder to the second hydraulic pressure. A front wheel flow rate to increase the front wheel hydraulic pressure is calculated using a brake operation member operation amount and a regeneration amount of the regenerative generator. The first pressure adjustment valve is controlled using the front wheel flow rate.
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公开(公告)号：US11060577B2
公开(公告)日：2021-07-13
申请号：US16485260
申请日：2018-03-15
Applicant: ADVICS CO., LTD.
Inventor： Yuta Koike , Takuo Yoshida
Abstract: A friction material containing a fiber base material, a binder, an organic filler, and an inorganic filler, wherein the copper content in the friction material in terms of elemental copper is 0.5% by weight or less relative to the whole friction material, and a particulate or fibrous aluminum alloy and zinc oxide are contained as the inorganic filler.
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公开(公告)号：US11059468B2
公开(公告)日：2021-07-13
申请号：US16500022
申请日：2018-03-29
Applicant: ADVICS CO., LTD.
Inventor： Marshall Bull , Shun Tsukamoto
Abstract: This braking control device comprises a differential mechanism, a first electric motor that generates assisting force in a braking operation member, a second electric motor that adjusts output rod shift of the differential mechanism, and a controller that controls the first and second electric motors. In the controller, the first electric motor is controlled on the basis of an assistance map in which the assisting force is calculated, and the second electric motor is controlled on the basis of a displacement map in which the output rod shift is calculated. When the displacement map is changed, the assistance map is corrected as well.
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公开(公告)号：US20210171052A1
公开(公告)日：2021-06-10
申请号：US16948546
申请日：2020-09-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Akitsugu SAKAI , Ryo SUMIKURA , Taisuke HAYASHI , Yuma MORI , Jun AOKI
Abstract: A control device includes: an acquisition unit configured to acquire, from a driving assist system, a requested acceleration and ending information indicating an end of a deceleration control; and a control unit configured to control a powertrain and a brake based on the requested acceleration, and perform a prescribed process of stabilizing a driving force and a braking force that are generated in an ending process of the deceleration control based on the requested acceleration when the acquisition unit acquires the ending information.
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