公开(公告)号：US10940847B2

公开(公告)日：2021-03-09

申请号：US16136859

申请日：2018-09-20

Applicant: ADVICS CO., LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Osayoshi Kato ,  Yoshio Masuda ,  Hiroyuki Kodama ,  Takayuki Yamamoto ,  Yasuji Mizutani

IPC: B60T13/74 ,  B60T8/1766 ,  B60T8/26 ,  B60T8/17 ,  B60T8/36 ,  B60T13/68

Abstract: A brake control device adjusts a front wheel braking hydraulic pressure of front wheel cylinders provided on front wheels of a vehicle and a rear wheel braking hydraulic pressure of rear wheel cylinders provided on rear wheels of the vehicle. The brake control device includes a hydraulic pressure generating unit configured to adjust a hydraulic pressure generated by an electric motor to an adjusted hydraulic pressure and apply the adjusted hydraulic pressure as the rear wheel braking hydraulic pressure and a hydraulic pressure correcting unit configured to adjust to decrease the adjusted hydraulic pressure to be a corrected hydraulic pressure, and apply the corrected hydraulic pressure as the front wheel braking hydraulic pressure.

公开(公告)号：US11938917B2

公开(公告)日：2024-03-26

申请号：US17041486

申请日：2019-03-28

Applicant: ADVICS CO., LTD.

Inventor： Tomotaka Asano ,  Takayuki Yamamoto ,  Yasuhito Ishida

IPC: G06F7/70 ,  B60T8/172 ,  B60T8/32 ,  B60T8/88 ,  B60T8/96 ,  B60T17/22

CPC classification number: B60T8/96 ,  B60T8/172 ,  B60T8/321 ,  B60T8/885 ,  B60T17/221 ,  B60T2250/00 ,  B60T2270/402 ,  B60T2270/406

Abstract: A braking control device for a vehicle includes a malfunction detector configured to detect a malfunction of a first stroke sensor or a second stroke sensor, a memory configured to store a first stroke and a second stroke, a stroke calculator for first calculation configured to calculate, from the first stroke and the second stroke, an average value for calculating a target deceleration before a malfunction is detected by the malfunction detector, a stroke calculator for second calculation configured to calculate, from the average value and the second stroke (first stroke), an additional value for calculating the target deceleration after the malfunction is detected, and a target deceleration setting circuit configured to set the target deceleration from the average value or the additional value.

公开(公告)号：US11377082B2

公开(公告)日：2022-07-05

申请号：US16967528

申请日：2019-02-05

Applicant: ADVICS CO., LTD.

Inventor： Takayuki Yamamoto ,  Hiroyuki Kodama ,  Hiroyuki Ando

IPC: B60T13/58 ,  B60L7/26 ,  B60T13/68

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.

公开(公告)号：US11299135B2

公开(公告)日：2022-04-12

申请号：US16641929

申请日：2018-09-26

Applicant: ADVICS CO., LTD.

Inventor： Takayuki Yamamoto ,  Hiroyuki Kodama ,  Hiroyuki Ando

IPC: B60T13/68 ,  B60T13/20

Abstract: A brake control device including a pressure adjusting unit including an electric pump and an electromagnetic valve, and that adjusts, using the electromagnetic valve, a brake liquid discharged by the electric pump to an adjusted liquid pressure and introduces the adjusted liquid pressure to the wheel cylinders of the rear wheels; and a master unit that includes a master cylinder and a master piston, and that includes a master chamber connected to the wheel cylinders of the front wheels and a servo chamber to which the adjusted liquid pressure is introduced and which provides, to the master piston, an advancing force that opposes a retreating force applied to the master piston by the master chamber.

公开(公告)号：US20190299786A1

公开(公告)日：2019-10-03

申请号：US16465730

申请日：2017-12-05

Applicant: ADVICS CO., LTD.

Inventor： Yusuke Nakagawa ,  Takayuki Yamamoto

IPC: B60L3/00 ,  B60T8/171 ,  B60T8/1761 ,  B60T8/96

Abstract: A vehicle braking system is provided with: a driving motor that can apply a regenerative braking force to a wheel; a friction braking device that is operated so as to apply a friction braking force to the wheel; and a braking control device. The braking control device controls the friction braking device on the basis of the detected value of a wheel speed when the detected value of the wheel speed of the wheel based on an output signal from each of wheel speed sensors SE5-SE8 can be acquired, and, when the detected value of the wheel speed cannot be acquired, acquires the estimated value of the wheel speed of the wheel on the basis of the rotational speed of the driving motor and controls the friction braking device on the basis of the estimated value of the wheel speed.

公开(公告)号：US10259437B2

公开(公告)日：2019-04-16

申请号：US15510842

申请日：2015-11-25

Applicant: ADVICS CO., LTD.

Inventor： Kunihiro Nishiwaki ,  Takayuki Yamamoto ,  Kyosuke Hata ,  Yasuhito Ishida

IPC: B60T8/40 ,  B60T17/22 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68

Abstract: A vehicle braking device includes: a stroke simulator for generating a hydraulic pressure corresponding to a brake operation in a hydraulic chamber, the stroke simulator having a cylinder part and a piston part for sliding through the inside of the cylinder part in conjunction with a brake operation of a brake pedal; a booster mechanism having an input part directly pressed by the piston part or pressed by a spring interposed between the input part and the piston part in conjunction with the sliding of the piston part, and thereby moved in sliding fashion through the inside of the cylinder, and a hydraulic pressure generating part for generating a first hydraulic pressure corresponding to the movement of the input part based on the hydraulic pressure of an accumulator; and a wheel cylinder for applying a braking force to a vehicle wheel on the basis of the first hydraulic pressure.

公开(公告)号：US11827199B2

公开(公告)日：2023-11-28

申请号：US16759381

申请日：2018-11-06

Applicant: ADVICS CO., LTD.

Inventor： Tatsushi Kobayashi ,  Tomotaka Asano ,  Yasuhito Ishida ,  Ryosuke Endo ,  Takayuki Yamamoto

IPC: B60T8/40 ,  B60T8/171 ,  B60T13/68 ,  B60T17/22 ,  B60T7/04

CPC classification number: B60T8/171 ,  B60T8/409 ,  B60T13/686 ,  B60T17/221 ,  B60T7/042 ,  B60T2270/82 ,  B60T2270/88

Abstract: A vehicle brake device includes a stroke simulator, a stroke sensor, and a brake start determination unit. The stroke simulator includes a cylinder, a piston, an orifice, and a pressure sensor. The cylinder defines a liquid pressure chamber to which a brake liquid is supplied via a fluid path. The piston slides in the cylinder by the brake liquid supplied to the liquid pressure chamber. The orifice is formed in the fluid path. The pressure sensor detects a reaction pressure. The stroke sensor is configured to detect the stroke. The brake start determination unit determines an operation of the brake operation member has been started in a case where the reaction pressure detected by the pressure sensor becomes equal to or greater than a first threshold value and the stroke detected by the stroke sensor becomes equal to or greater than a second threshold value.

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

IPC: B60T8/171 ,  B60T17/22

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.

公开(公告)号：US20190184953A1

公开(公告)日：2019-06-20

申请号：US16318816

申请日：2017-07-26

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito Ishida ,  Takayuki Yamamoto

IPC: B60T8/88 ,  B60T17/22 ,  B60T8/171 ,  B60T8/17 ,  B60T8/32 ,  H04Q9/00

CPC classification number: B60T8/885 ,  B60T8/17 ,  B60T8/171 ,  B60T8/326 ,  B60T8/88 ,  B60T17/22 ,  B60T2220/04 ,  B60T2270/413 ,  G08C19/00 ,  G08C25/00 ,  H04Q9/00

Abstract: A sensor monitoring device that comprises: a first controller ECA into which a detected value Smn from a sensor SMN is inputted via a first signal line LMA; a second controller ECB into which the detected value Smn is inputted via a second signal line LMB; and a communication bus CMB that transmits signals between the first controller ECA and the second controller ECB. The second controller ECB reads in the detected value Smn as a second processing value Smb and transmits the second processing value Smb to the first controller ECA via the communication bus CMB. The first controller ECA reads in the detected value Smn as a first processing value Sma, receives the second processing value Smb, and, on the basis of the first processing value Sma and the second processing value Smb, determines the suitability of the first processing value Sma.

公开(公告)号：US20190100181A1

公开(公告)日：2019-04-04

申请号：US16082143

申请日：2017-03-28

Applicant: ADVICS CO., LTD.

Inventor： Tatsushi Kobayashi ,  Takayuki Yamamoto ,  Yasuhito Ishida ,  Kunihiro Nishiwaki

IPC: B60T8/48 ,  B60T8/36 ,  B60T8/1761 ,  B60T8/26

Abstract: This invention is characterized in being provided with: a determining unit for determining the execution of a state transition from a pressure increase mode in which an electric pump is operated with a differential valve being in a closed state and a holding valve being in an open state to a pressure decrease mode in which the electric pump is operated with the holding valve being in a closed state and the differential valve being in an open state; and a control unit for controlling, when the determining unit determines the execution of the state transition, one or more of the differential valve, the holding valve, a pressure reduction valve, and the electric pump, and reducing the amount of a braking fluid retained in a path between the differential valve and the holding valve.