公开(公告)号：US20210016755A1

公开(公告)日：2021-01-21

申请号：US16980113

申请日：2019-03-28

Applicant: ADVICS CO., LTD.

Inventor： Kunihiro NISHIWAKI ,  Jun NOMURA ,  Yasuhito ISHIDA ,  Tatsushi KOBAYASHI

IPC: B60T13/68 ,  B60T8/17 ,  B60T8/40 ,  B60T15/02

Abstract: The present disclosure comprises a reservoir cutoff valve provided on a pipe and configured to be opened in a non-energization state; a simulator cutoff valve provided on a pipe and configured to be closed in a non-energization state; an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member is being operated is; and a current control circuit that, when the operation determination circuit determines that the brake operation member is not in an operation execution state, supplies a first current to the reservoir cutoff valve, and when the operation determination circuit determines that the brake operation member is in an operation execution state, supplies a second current greater than the first current to the reservoir cutoff valve.

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

IPC: B60T8/94 ,  B60T17/22 ,  B60T13/58 ,  B60T13/66

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.

公开(公告)号：US20170274880A1

公开(公告)日：2017-09-28

申请号：US15510842

申请日：2014-11-25

Applicant: ADVICS CO., LTD.

Inventor： Kunihiro NISHIWAKI ,  Takayuki YAMAMOTO ,  Kyosuke HATA ,  Yasuhito ISHIDA

IPC: B60T8/40 ,  B60T13/14

CPC classification number: B60T8/4086 ,  B60T7/042 ,  B60T13/14 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B60T17/22 ,  B60T2220/04 ,  B60T2270/60 ,  B60T2270/604

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.