公开(公告)号：US10940844B2

公开(公告)日：2021-03-09

申请号：US16335410

申请日：2017-09-07

Applicant: ADVICS CO., LTD.

Inventor： Tatsushi Kobayashi ,  Takayuki Yamamoto ,  Yasuhito Ishida

IPC: B60T13/66 ,  B60T8/17 ,  B60T8/32 ,  B60T8/36 ,  B60T8/48 ,  B60T13/74

Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.

公开(公告)号：US20200039490A1

公开(公告)日：2020-02-06

申请号：US16335410

申请日：2017-09-07

Applicant: ADVICS CO., LTD.

Inventor： Tatsushi Kobayashi ,  Takayuki Yamamoto ,  Yasuhito Ishida

IPC: B60T13/66 ,  B60T8/17

Abstract: The vehicular brake device includes a determination unit, a ratio setting unit, and the control unit. The determination unit determines the operating condition of a vehicular brake device. The ratio setting unit sets, on the basis of the result of determination by the determination unit, a first ratio which is the ratio of a wheel pressure generated by a piston drive unit to a target wheel pressure, and a second ratio which is the ratio of a wheel pressure generated by a hydraulic pressure adjusting unit to the target wheel pressure. The control unit controls the piston drive unit and the hydraulic pressure adjusting unit on the basis of the first ratio and the second ratio.

公开(公告)号：US10384661B2

公开(公告)日：2019-08-20

申请号：US15553948

申请日：2016-02-26

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito Ishida

IPC: B60T13/18 ,  B60T8/48 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68 ,  B60T8/175 ,  B60T8/24

Abstract: A brake ECU of a vehicle braking control device, during execution of brake pressurization control, performs actuation restriction control that restricts actuation of a motor as an arbitrary upstream fluid pressure (M/C pressure) that is the brake pressure input from the M/C side of the brake fluid pressure control actuator becomes higher. The brake ECU has a threshold value changing unit that sets at least the starting threshold value at a high level when the upstream fluid pressure (M/C pressure) is high compared to when low, and as actuation restriction control actuates the motor to pump out the brake fluid from inside of the reservoirs when the reservoir fluid volume exceeds the starting threshold value, and stops the motor when the reservoir fluid volume equals the stop threshold value.

公开(公告)号：US10124781B2

公开(公告)日：2018-11-13

申请号：US15312074

申请日：2015-06-29

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito Ishida

IPC: B60T8/58 ,  B60T7/12 ,  B60T1/10 ,  B60T7/04 ,  B60T8/175 ,  B60T11/18 ,  B60W40/107 ,  B60W10/04 ,  B60W40/068 ,  B60W10/18 ,  B60W30/02

Abstract: A vehicle brake device is provided with: an acquisition unit that acquires travel resistance force produced between a vehicle wheel and a road surface touched by the wheel when, for example, a vehicle having the wheel travels, on the basis of driving force of the vehicle and acceleration of the vehicle; and a control unit that starts a control for supplying braking force to the wheel of the vehicle when a difference between the travel resistance force and a predetermined value exceeds a first threshold value and a differential value of the travel resistance force exceeds a second threshold value.

公开(公告)号：US09694794B2

公开(公告)日：2017-07-04

申请号：US14909330

申请日：2014-07-31

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito Ishida

IPC: B60T8/175 ,  B60T7/12 ,  B60W10/04 ,  B60W10/06 ,  B60W10/18 ,  B60W10/188 ,  B60W30/188 ,  B60T8/32

CPC classification number: B60T8/175 ,  B60T7/12 ,  B60T8/3205 ,  B60W10/04 ,  B60W10/06 ,  B60W10/18 ,  B60W10/188 ,  B60W30/188

Abstract: To enable control of vehicle speed according to the intentions of a driver by a simpler operation. When a vehicle body speed rapidly decreases and becomes lower than a brake target threshold speed, the brake target threshold speed is decreased in conformity with the vehicle body speed. This prevents the increase of the vehicle body speed toward the brake target threshold speed such that a vehicle accelerates regardless of a brake being in operation because the brake target threshold speed is set at a higher value than the vehicle body speed. Accordingly, the vehicle body speed decelerates by a simpler operation while being able to prevent the vehicle from accelerating against the intentions of a driver and being able to control the speed of the vehicle according to the intentions of the driver.

公开(公告)号：US09623856B2

公开(公告)日：2017-04-18

申请号：US14781840

申请日：2014-04-01

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

Inventor： Yusuke Kamiya ,  Masaaki Komazawa ,  Yasuhito Ishida

IPC: B60T17/22 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68 ,  B60T8/40 ,  F15B21/04

CPC classification number: B60T17/222 ,  B60T7/042 ,  B60T8/4077 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  F15B21/044

Abstract: A hydraulic braking system includes: a master cylinder including: a pressurizing piston fluid-tightly and slidably fitted in a housing; a front pressure chamber located in front of the pressurizing piston and connected to a brake cylinder; and a rear chamber located behind the pressurizing piston; a rear-hydraulic-pressure control device connected to the rear chamber of the master cylinder and configured to supply control hydraulic pressure to the rear chamber; and an air bleeding device configured to perform air bleeding for an air bleeding target portion as at least a portion of the rear-hydraulic-pressure control device, in a state in which working fluid is prevented from being supplied to the rear chamber.

公开(公告)号：US09623852B2

公开(公告)日：2017-04-18

申请号：US14780107

申请日：2014-03-27

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito Ishida ,  Yusuke Nakagawa ,  Ken Kudo

IPC: B60T13/68 ,  B60T8/34 ,  B60T8/48 ,  B60T8/40 ,  B60T13/14 ,  B60T13/66

CPC classification number: B60T8/348 ,  B60T8/4045 ,  B60T8/4872 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686

Abstract: When driving of a motor is on and W/C pressure of a low-pressure-side wheel is increased, the driving of the motor is continued until the actual W/C pressure of a high-pressure-side wheel in the same system reaches a predetermined range relative to a target pressure. Specifically, if the target pressure of the low-pressure-side wheel is greater than a predetermined value, the braking hydraulic pressure of the low-pressure-side wheel is increased, the motor is driven, and to account for a resulting decrease in the W/C pressure of the high-pressure-side wheel, the driving of the motor is continued until the W/C pressure of the high-pressure-side wheel is restored. Temperature increases in the motor can thereby be prevented and durability can be improved by shortening the drive time of the motor as much as possible.