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：US11407392B2

公开(公告)日：2022-08-09

申请号：US16636656

申请日：2018-09-05

Applicant: ADVICS CO., LTD.

Inventor： Ken Kuzuya ,  Yasuhito Ishida ,  Tomotaka Asano ,  Takayuki Yamamoto

IPC: B60T8/32 ,  B60T8/172 ,  B60T13/16 ,  B60T13/20 ,  B60T13/68

Abstract: The braking device for vehicles includes a reduction amount setting part for setting the amount by which to reduce the revolution of a pump motor during maintenance or reduction of controllable differential pressure so that the reduction amount decreases as the probability increases of needing to discharge the brake fluid by pumps, during a period from when a brake controller begins reducing the revolution until the lapse of prescribed time.

公开(公告)号：US11117558B2

公开(公告)日：2021-09-14

申请号：US16645114

申请日：2018-09-28

Applicant: ADVICS CO., LTD.

Inventor： Ken Kuzuya ,  Tomotaka Asano ,  Yasuhito Ishida ,  Tatsushi Kobayashi ,  Takayuki Yamamoto

IPC: B60T8/40 ,  B60T8/174 ,  B60T8/72 ,  B60T13/14 ,  B60T13/20 ,  H02P5/46

Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.

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.