公开(公告)号：US20180029576A1

公开(公告)日：2018-02-01

申请号：US15549433

申请日：2016-01-29

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

Inventor： Tatsushi KOBAYASHI ,  Masaaki KOMAZAWA ,  Yusuke KAMIYA

IPC: B60T8/88 ,  B60T17/22 ,  B60T8/44 ,  B60T8/36

CPC classification number: B60T8/88 ,  B60T8/17 ,  B60T8/363 ,  B60T8/4077 ,  B60T8/44 ,  B60T8/48 ,  B60T8/94 ,  B60T17/18 ,  B60T17/221 ,  B60T2270/404 ,  B60T2270/82

Abstract: Provided is a brake device capable of detecting abnormality condition of a subject valve without using a wheel pressure sensor and the vehicle brake device includes a valve which is configured to open and close a fluid passage connected to the master chamber and at the same time which is a subject valve for a subject of failure judgement and an abnormality judging portion which is configured to judge whether or not the subject valve is in an abnormal state based on an advancement amount of the master piston accompanying an opening of the subject valve.

公开(公告)号：US20170349153A1

公开(公告)日：2017-12-07

申请号：US15539072

申请日：2015-12-17

Applicant: DENSO CORPORATION ,  ADVICS CO., LTD.

Inventor： Hironobu YAMASHITA ,  Takahiro YAMAGUCHI ,  Kennji FUJIWARA ,  Takashi MURAYAMA ,  Keita NAKANO ,  Aritomo NABETA

IPC: B60T8/48 ,  H02P1/18

Abstract: An increase in startup current supplied to a motor is suppressed at an initial stage of starting automatic braking control, while current supply to the motor is performed in a fully energized state after the automatic braking control is started. While output of the motor is increased by controlling the motor in the fully energized state so that a high braking force with high responsiveness is obtained, startup current is prevented from becoming excessive by performing high frequency control only at startup. Thus, decrease in battery voltage is minimized and thus the occurrence of malfunction is minimized in the control systems of various electrical components used in the vehicle.

公开(公告)号：US09796367B2

公开(公告)日：2017-10-24

申请号：US14349555

申请日：2013-01-25

Applicant: ADVICS CO., LTD.

Inventor： Yoshihiro Miyata ,  Yasuhiro Hineno ,  Keita Nakano ,  Takanori Iida

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

CPC classification number: B60T13/148 ,  B60T7/042 ,  B60T8/4872 ,  B60T13/141 ,  B60T13/143 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686

Abstract: A vehicle brake device includes a hydraulic pressure generating device, a valve device, a pump and an accumulation section forming an accumulation chamber connected to a fluid passage between the valve device and the hydraulic pressure generating device or to a master chamber. A dead band is set in which the change of force of the magnitude corresponding to the hydraulic pressure in the master chamber does not substantially act on a brake operating member. A characteristic representing the relation between the pressure and the brake fluid quantity in the accumulation chamber is set based on a characteristic representing the relation between the pressure and the brake fluid quantity in a wheel cylinder and the dead band so that, when brake fluid is flowing into and from the accumulation chamber, a force of the magnitude corresponding to the master chamber hydraulic pressure does not act on the brake operating member.

公开(公告)号：US09744952B2

公开(公告)日：2017-08-29

申请号：US15033560

申请日：2014-10-29

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA ,  ADVICS CO., LTD.

Inventor： Hiroaki Seto ,  Kunihide Ohashi ,  Takeshi Yamamura ,  Yoshinori Tsuji ,  Hideki Takada ,  Kunio Kajihara ,  Masato Terasaka ,  Yutaka Hamamoto

IPC: B60T8/1755 ,  B60T8/17 ,  B60T8/32 ,  B62K5/027 ,  B62K5/10 ,  B62K5/05 ,  B62K5/08 ,  B62L3/02 ,  B62K5/00

CPC classification number: B60T8/17554 ,  B60T8/1706 ,  B60T8/3225 ,  B60T2230/03 ,  B62K5/027 ,  B62K5/05 ,  B62K5/08 ,  B62K5/10 ,  B62K2005/001 ,  B62L3/023

Abstract: A brake system includes a brake activator which reduces, when a slipping condition of a right front wheel is detected based on a signal which is detected by a right detector, both braking forces on the right front wheel and a left front wheel to a lower level than a level of a braking force which is obtained as a result of operation of an input member and which reduces, when a slipping condition of the left front wheel is detected based on a signal which is detected by a left detector, both braking forces on the left front wheel and the right front wheel to a lower level than a level of a braking force which is obtained as a result of operation of the input member.

公开(公告)号：US09714015B2

公开(公告)日：2017-07-25

申请号：US14909019

申请日：2014-07-31

Applicant: ADVICS CO., LTD.

Inventor： Hiroki Saito

IPC: B60T8/17 ,  B60T8/36

CPC classification number: B60T8/17 ,  B60T8/36 ,  B60T8/3655

Abstract: A vehicle braking control device includes: an indicated-value-setting unit for setting an indicated current value, which relates to a differential pressure valve provided to a channel between a master cylinder and a wheel cylinder, to a value corresponding to a required differential pressure; and a depressurization-starting differential pressure acquisition unit for acquiring, as a depressurization-starting differential pressure, the differential pressure at the point in time when a pressurizing state for increasing the differential pressure caused by the differential pressure valve transitions to a depressurizing state for reducing the differential pressure caused by the differential pressure valve. The area between the depressurization-starting differential pressure and a boundary differential pressure is set as a depressurization-starting differential pressure area. When the depressurizing state is in effect and the required differential pressure is included in the depressurization-starting differential pressure area, the indicated-value-setting unit sets the slope of decrease of the indicated current value.

公开(公告)号：US09683584B2

公开(公告)日：2017-06-20

申请号：US14403054

申请日：2013-05-30

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

Inventor： Yoshio Masuda ,  Hiroaki Niino ,  Akira Sakai ,  Yasuji Mizutani ,  Kiyoyuki Uchida ,  Masaaki Komazawa ,  Kazutaka Noro ,  Yusuke Kamiya

IPC: F15B9/10 ,  B60T8/40 ,  B60T11/224 ,  F15B13/042 ,  B60T7/04 ,  B60T13/14 ,  B60T13/66 ,  B60T13/68

CPC classification number: F15B9/10 ,  B60T7/042 ,  B60T8/4077 ,  B60T11/224 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  F15B13/0422 ,  F15B2211/528 ,  F15B2211/7051

Abstract: The brake device for a vehicle generates two master pressures by controlling one single servo pressure to accurately control braking force. The pressure increasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon increasing the servo pressure and the second pressure increasing characteristic obtained from the servo pressure and the second master pressure. The pressure decreasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon decreasing the servo pressure and the second pressure decreasing characteristic obtained from the servo pressure and the second master pressure. Thus, the total braking force of the brake device is the sum of a braking force generated by the first master pressure and a braking force generated by the second master piston.

公开(公告)号：US09663086B2

公开(公告)日：2017-05-30

申请号：US14897261

申请日：2014-06-17

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

Inventor： Yoshimitsu Ozeki ,  Hiroaki Niino ,  Takahiro Okano ,  Masaaki Komazawa ,  Kiyoyuki Uchida

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

CPC classification number: B60T13/146 ,  B60T7/042 ,  B60T8/4077 ,  B60T8/4081 ,  B60T13/662 ,  B60T13/686

Abstract: The vehicular brake device according to the present invention is provided with a first flow passage connecting a first electromagnetic valve and a wheel cylinder, a second flow passage connecting a reservoir portion capable of storing brake fluid and the first flow passage and a second electromagnetic valve disposed in the second flow passage. A pressure differential generating portion generates a predetermined pressure differential by moving a master piston by a drive pressure generating portion after an execution of an advancement control to advance the master piston so that the stroke position of the master piston is within an advanced side area. A second electromagnetic valve control portion places the second electromagnetic valve in an open state for a period including at least a portion of the period of time in an execution period of the advancement control.

公开(公告)号：US09663076B2

公开(公告)日：2017-05-30

申请号：US14931239

申请日：2015-11-03

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

Inventor： Wataru Ike ,  Yosuke Ohmori

IPC: B60T7/22 ,  B60T8/1755

CPC classification number: B60T7/22 ,  B60T8/17558 ,  B60T2201/022

Abstract: A vehicle braking control apparatus includes an obstacle detection unit to detect an obstacle ahead of a vehicle, and a distance and a relative speed of the obstacle; a time to collision calculation unit to calculate time to collision with the obstacle; an estimated distance calculation unit to calculate an estimated distance to the obstacle when the obstacle has gone out of detection; and a braking control unit to generate a braking force automatically when the time to collision is a predetermined time or less, and when the obstacle has gone out of detection while the braking force is generated, to release the braking force when the estimated distance is a predetermined threshold (

公开(公告)号：US09618434B2

公开(公告)日：2017-04-11

申请号：US14397767

申请日：2013-05-31

Applicant: ADVICS CO., LTD.

Inventor： Kazuho Mizuta ,  Yukio Nishizawa ,  Kyoko Kosaka ,  Yutaka Kurita ,  Yasunori Oura

IPC: G01N3/08 ,  G01N3/32 ,  G01L5/28

CPC classification number: G01N3/08 ,  G01L5/28 ,  G01N3/32

Abstract: A calculating device of the stiffness measurement device pressurizes an object to be measured with a predetermined pressure and the stiffness of the object to be measured in the squeal frequency band is calculated based on an inclination of a stress-displacement performance curve immediately after a start of depressurization after the pressurization. According to this device, there is no need to oscillate the object with a high frequency band and there is no need to enhance the stiffness of the housing of the measurement device, which leads to a downsizing of the device. Further, there is no need for measuring of acceleration speed of the object to be measured and accelerator can be eliminated to reduce the cost of the stiffness measurement device.

公开(公告)号：US09611910B2

公开(公告)日：2017-04-04

申请号：US14337758

申请日：2014-07-22

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

Inventor： Shunsuke Murata ,  Masatoshi Hanzawa ,  Takahiro Shiraki

IPC: B60T8/17 ,  F16D66/00 ,  F16D65/14 ,  B60T7/12 ,  B60T17/22 ,  B60T8/88 ,  G01L5/28

CPC classification number: F16D66/00 ,  B60T7/12 ,  B60T8/885 ,  B60T17/22 ,  B60T2201/04 ,  B60T2270/406 ,  F16D65/14 ,  F16D2066/001 ,  F16D2066/003 ,  F16D2066/006 ,  G01L5/28

Abstract: A brake temperature detection device: acquires a kinetic-energy based temperature rise, which is an increase in an amount of brake heat that occurs when kinetic energy generated in a running vehicle is converted into thermal energy by braking; acquires a braking-energy based temperature rise, which is an increase in an amount of brake heat that is calculated from an amount of work done when a brake's friction material is pressed against a friction target material; determines state of slope of a road surface on which the vehicle is running; and detects a brake temperature in accordance with an increase in an amount of brake heat generated in braking. The brake temperature detection device selects, based on the state of slope, either the kinetic-energy based temperature rise or the braking-energy based temperature rise as the increase in the amount of brake heat generated in braking and achieves brake temperature detection.