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公开(公告)号：US11215293B2
公开(公告)日：2022-01-04
申请号：US16648763
申请日：2018-09-21
Applicant: ADVICS CO., LTD.
Inventor： Junichi Fukuda , Koichi Hashida , Hidenori Hayakawa
Abstract: A yoke is provided with a notch, notched from two points P1 and P2 on a circumference forming a sleeve-side insertion hole toward the outside of the circumference, the notch having a minimum distance between the points P1 and P2 as a width W and the distance from a straight line linking the points P1 and P2 in a direction orthogonal to the straight line as a length L. The width W of the notch is set on the basis of a target attraction force for attracting a plunger, the attraction force increasing with an increase in the width W, and the length L of the notch is greater than or equal to a prescribed length Ld where the attraction force increasing with an increase in the length L becomes constant at the target attraction force in the set width W irrespective of an increase in the length L.
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公开(公告)号：US20210394733A1
公开(公告)日：2021-12-23
申请号：US17288034
申请日：2019-11-18
Applicant: ADVICS CO., LTD.
Inventor： Masaki MARUYAMA , Yoshio MASUDA , Shunya WATANABE
Abstract: A vehicle braking device includes a first supply unit supplying fluid to main flow channels connected to wheel cylinders of a vehicle, a differential solenoid valve provided on the main flow channels and generating a differential pressure across the differential solenoid valve, a second supply unit supplying fluid to the wheel cylinders by drawing at least some fluid supplied from the first supply unit through branch flow channels branching off from the main flow channels upstream of the differential solenoid valve, and a setting unit setting a supply amount of fluid supplied from the first supply unit in accordance with a draw amount of fluid drawn by the second supply unit.
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公开(公告)号：US20210328534A1
公开(公告)日：2021-10-21
申请号：US17272544
申请日：2019-09-24
Applicant: ADVICS CO., LTD.
Inventor： Atsushi TAKAHASHI
IPC: H02P21/22
Abstract: A motor control device includes a command current derivation unit that derives a command current vector based on a command torque for a brushless motor, a phase difference derivation unit that derives a phase difference between a direction of a real d-axis of rotating coordinates of vector control and a direction of an estimated d-axis thereof, a change unit that changes a direction of the command current vector derived by the command current derivation unit according to the phase difference, and a drive control unit that drives the brushless motor based on the command current vector whose direction is changed by the change unit.
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公开(公告)号：US20210261106A1
公开(公告)日：2021-08-26
申请号：US17256884
申请日：2019-08-29
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO
IPC: B60T8/1755 , B60T8/1761 , B60T8/44 , B60T8/48
Abstract: A brake control device includes an electric pump, a pressure adjustment valve that adjusts a hydraulic pressure of a brake fluid discharged by the electric pump to an adjustment hydraulic pressure and supplies the brake fluid in a rear wheel cylinder, and a master unit provided with a servo chamber into which brake fluid at the adjustment hydraulic pressure is supplied and in which the adjustment hydraulic pressure is converted into a forward force of a master piston, and a master chamber fluidically separated from the servo chamber by the master piston and connected to the front wheel cylinder and in which a rearward force converted from the hydraulic pressure in the front wheel cylinder and is applied to the master piston. Also included is an input unit provided with an input chamber and a simulator, and a controller configured to control the electric pump and the pressure adjustment valve.
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公开(公告)号：US11091033B2
公开(公告)日：2021-08-17
申请号：US15574634
申请日：2016-05-18
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takashi Nonaka , Jun Mizuno , Daisuke Kohara , Yuji Yoshii , Gen Inoue , Yasushi Kobayashi , Hiroshi Omine
Abstract: The vehicle control apparatus is provided with a vehicle body speed deriving portion that derives a vehicle body speed of a vehicle, a wheel speed difference deriving portion that derives a wheel speed difference which is a deviation between the maximum wheel speed and the minimum wheel speed of the wheels of the vehicle, a request drive amount deriving portion that derives a request drive amount for the drive source of the vehicle, a torque suppressing device that suppresses torque of a driving wheel, a traction control portion that controls the torque suppressing device and suppresses an acceleration slip of the driving wheel based on the wheel speed difference or a combination of the wheel speed difference and at least one of the vehicle body speed and the request drive amount.
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Patent Agency Ranking
公开(公告)号：US20210229648A1
公开(公告)日：2021-07-29
申请号：US16967528
申请日：2019-02-05
Applicant: ADVICS CO., LTD.
Inventor： Takayuki YAMAMOTO , Hiroyuki KODAMA , Hiroyuki ANDO
Abstract: A braking control device includes a master unit including a master chamber connected to a front wheel cylinder and a servo chamber that applies forward force opposing a reverse force applied to a master piston by the master chamber to the master piston, a pressure adjustment unit that adjusts brake fluid discharged by a pump to a first liquid pressure by a first solenoid valve and introduces the first liquid pressure to a rear wheel cylinder, and adjusts the first liquid pressure to decrease to a second liquid pressure by a second solenoid valve and introduces the second liquid pressure to the servo chamber; and a regenerative coordination unit having an input piston operable in conjunction with a braking operation member and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the second liquid pressure.
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公开(公告)号：US10955018B2
公开(公告)日：2021-03-23
申请号：US16470829
申请日：2017-12-21
Applicant: ADVICS CO., LTD.
Inventor： Tadashi Isshiki
Abstract: This brake pad assembly is, for example, equipped with: a brake pad that includes a lining and a back plate; a detection unit attached to the plate and detects abrasion of the lining; and a retainer for attaching the unit to the plate in a detachable manner. The retainer has: a base part that contacts a surface of the plate; a first holding part that holds the retainer in a prescribed position on the plate; a second holding part provided so as to be movable between a restricting position in which the unit is restricted from separating from the plate, and a release position in which the unit can be detached from the plate; a biasing part that elastically biases the second holding part toward the restricting position; and an operation part that moves the second holding part to the release position by means of an applied external force.
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公开(公告)号：US10899328B2
公开(公告)日：2021-01-26
申请号：US16090760
申请日：2017-04-07
Applicant: ADVICS CO., LTD.
Inventor： Manabu Tanaka , Shunya Watanabe
Abstract: A braking control device comprising: an operation amount acquisition device that obtains an operation amount for a braking operation member; a pressurizing unit that presses a friction member to a rotating member fixed to a wheel, by using an electric motor; a control that controls the output of the motor based on the operation amount; a pressing force acquisition device that obtains the actual pressing force of the friction member pressing on the rotating member; and a rotation angle acquisition device that obtains the actual rotation angle of the motor. The control: stores the correlation between the actual pressing force and the actual rotation angle; approximates a function map indicated by a second degree or higher polynomial based on the correlation; calculates a target rotation angle based on the operation amount and the function map; and controls the motor such that the actual rotation angle matches the target rotation angle.
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公开(公告)号：US10899324B2
公开(公告)日：2021-01-26
申请号：US16090771
申请日：2017-04-07
Applicant: ADVICS CO., LTD.
Inventor： Yoshiyuki Yasui
IPC: B60T8/17 , B60T8/48 , B60T17/22 , F16D121/24
Abstract: A braking control device generates a force for pressing a friction member against a rotating member fixed to a wheel of the vehicle via an electric motor controlled by a controller in accordance with an operation amount of an operation member. A pressing force sensor detects a pressing force actual value, and a rotation angle sensor detects a rotation angle actual value of the motor. The controller determines whether an operating state of the pressing force sensor is appropriate. When the operating state is appropriate, the motor output is adjusted based on the pressing force actual value, a correlation between the pressing force actual value and the rotation angle actual value is stored, and a conversion calculation map is created based on the correlation. When the operating state is not appropriate, the motor output is adjusted based on the rotation angle actual value and the conversion calculation map.
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公开(公告)号：US10851804B2
公开(公告)日：2020-12-01
申请号：US15753916
申请日：2016-07-19
Applicant: ADVICS CO., LTD. , NHK SPRING CO., LTD.
Inventor： Hideki Yamamoto , Hiroshi Mizukami
IPC: F15B1/10 , F15B1/08 , F16L55/053
Abstract: An accumulator according to an embodiment includes, for example, a base member; a cover member welded to the base member, the cover member and the base member defining a pressure chamber therebetween; a stretchable partition member that partitions the pressure chamber into an inner chamber and an outer chamber; and a labyrinth structure provided in at least one of a first part of the base member and a second part of the cover member. The first part is located closer to the outer chamber than a welded part between the base member and the cover member. The second part is located closer to the outer chamber than the welded part, facing the first part.
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