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公开(公告)号：US11267444B2
公开(公告)日：2022-03-08
申请号：US16335317
申请日：2017-09-22
Applicant: ADVICS CO., LTD.
Inventor： Terushige Uraoka , Keita Nakano , Tatsuya Urano
Abstract: The brake control device controls a hydraulic brake to generate hydraulic braking force on both the front and rear wheels of a four-wheel-drive vehicle, and an electrical parking brake to generate parking brake force, different from the hydraulic braking force, on the front or rear wheels. The brake control device includes: a detection unit that detects parking brake operation for causing the electrical parking brake to generate a parking brake force; and a control unit for reducing the hydraulic braking force generated on the front wheels or the rear wheels and adjusting the hydraulic braking force on the other of the front wheels or the rear wheels to a magnitude allowing a stationary vehicle state to be maintained, before a parking brake force is generated by the electrical parking brake, when a parking brake operation is detected while a stationary state is being maintained solely by the hydraulic braking force.
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公开(公告)号：US11242901B2
公开(公告)日：2022-02-08
申请号：US16644573
申请日：2018-09-21
Applicant: ADVICS CO., LTD.
Inventor： Naoki Okada , Yohei Komizo , Takao Iida
IPC: F16D65/40 , F16D65/097 , F16D55/226 , F16D65/00 , F16D121/04
Abstract: A pad support spring includes a U-shaped portion comprising an outer peripheral surface portion, an inner peripheral surface portion and a linking surface portion. The U-shaped portion is configured to include: a pad holding portion; a cutout portion provided by cutting out a part from the linking surface portion toward the inner peripheral surface portion; a tongue piece portion which in an unassembled state has a base end formed by the cutout portion on the outer peripheral surface portion side of the pad holding portion and a distal end which projects out from an opposing surface of the inner peripheral surface portion, and which in an assembled state deforms elastically to press a brake pad in conjunction with the U-shaped portion; and a first slit portion provided by cutting out part of a first linking part.
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公开(公告)号：US20220017056A1
公开(公告)日：2022-01-20
申请号：US17429020
申请日：2020-02-25
Applicant: ADVICS CO., LTD.
Inventor： Hirotaka TAKEYA , Keita NAKANO
Abstract: The present invention relates to, for example, a vehicle control device including a driving force control unit that controls a driving force generated by a wheel of a vehicle; and a braking force control unit that controls a braking force generated by the wheel; where the driving force control unit generates the driving force of a first prescribed amount and the braking force control unit generates the braking force of a second prescribed amount to control the speed of the vehicle to be constant; and acceleration or deceleration are both controllable by performing one of control of the driving force by the driving force control unit and control of the braking force by the braking force control unit.
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公开(公告)号：US20220003232A1
公开(公告)日：2022-01-06
申请号：US17291422
申请日：2019-12-02
Applicant: ADVICS CO., LTD.
Inventor： Tomoo HARADA
Abstract: A pump includes a fluid outflow mechanism that causes the brake fluid in the discharge chamber to flow out into the suction chamber in accordance with decrease in the volume of the discharge chamber when the feed ring of the valve portion decreases the volume of the discharge chamber in cooperation with the increasing movement of the volume of the first pump chamber in a state where the first pump chamber and the discharge chamber are filled with brake fluid in the suction step.
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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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Patent Agency Ranking
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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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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