公开(公告)号：US20190176790A1

公开(公告)日：2019-06-13

申请号：US16326999

申请日：2017-08-09

Applicant: ADVICS CO., LTD.

Inventor： Tatsuya URANO ,  Keita NAKANO ,  Terushige URAOKA

IPC: B60T13/74 ,  B60T7/12 ,  B60T8/172

Abstract: A brake control device controls a hydraulic brake that generates hydraulic braking force and an electric parking brake that generates parking braking force different from the hydraulic braking force. The brake control device comprises: a detection unit that detects a parking brake operation for causing the electric parking brake to generate the parking braking force; and a control unit that causes the electric parking brake to generate the parking braking force when the hydraulic braking force per wheel generated by the hydraulic brake, after decreasing below the minimum first braking force per wheel required for maintaining the vehicle stop state only by the electric parking brake, is less than the first braking force, in association with the parking brake operation having been performed in a state where the stop state is maintained only by a hydraulic brake operation for causing the hydraulic brake to generate the hydraulic braking force.

公开(公告)号：US10300893B2

公开(公告)日：2019-05-28

申请号：US15315012

申请日：2015-07-14

Applicant: ADVICS CO., LTD.

Inventor： Yuta Miwa ,  Tetsuya Honda

IPC: F16F9/38 ,  B60T7/04 ,  F16J3/04 ,  F16J15/52 ,  F16F1/12 ,  B60T17/00 ,  F16F1/02 ,  B60T7/06 ,  B60T11/18 ,  B60T17/22 ,  G05G1/30

Abstract: A brake boosting device wherein a vibration control member is provided to an end part of a return coil spring that is arranged inside a vehicle chamber and that is interposed between a booster body and an input rod. The vibration control member has provided thereto: a seat part that suppresses the vibration of the return coil spring and that is between the end part of the return coil spring and a support part that supports the end part; and a guide part that is provided integrally with the seat part and that fits with the inner periphery of the end part of the return coil spring at a prescribed radial tightening allowance.

公开(公告)号：US20190100184A1

公开(公告)日：2019-04-04

申请号：US16086891

申请日：2017-03-28

Applicant: ADVICS CO., LTD.

Inventor： Yasuhito ISHIDA ,  Tatsushi KOBAYASHI ,  Takayuki YAMAMOTO

IPC: B60T13/68 ,  B60T7/04 ,  B60T8/40 ,  B60W10/188 ,  B60W10/192

Abstract: A braking device includes: a reservoir; a master cylinder in which when the amount of operation performed on a brake pedal reaches or exceeds a predetermined amount, a port communicating between a pressure chamber and the reservoir is cut off and hydraulic pressure corresponding to the brake pedal operation amount is generated; a hydraulic pressure unit for adjusting the wheel cylinder hydraulic pressure; and a control unit for controlling the hydraulic pressure unit. The control unit determines, based on a temperature-related value related to the temperature of a friction member pressed by the wheel cylinder hydraulic pressure against a rotating member fixed to a wheel, whether the friction member is in a fade state. When the friction member is in a fade state, the control unit controls the hydraulic pressure unit to suction brake fluid from the reservoir through the port, and is fed to the wheel cylinder.

公开(公告)号：US20180339684A1

公开(公告)日：2018-11-29

申请号：US15761581

申请日：2016-09-28

Applicant: ADVICS CO., LTD.

Inventor： Yusuke TAKEYA ,  Kosuke HASHIMOTO ,  Shun NOHIRA

IPC: B60T8/173 ,  B60T13/68 ,  F16K31/06

Abstract: In the present invention, a brake device is equipped with: differential pressure control valves; pressure adjusting units which are connected to the differential pressure control valves through liquid passages; and a control device which controls the WC pressure Pwc in wheel cylinders by operating the differential pressure control valves and the pressure adjusting units. When predetermined suppression control permission conditions are satisfied while both the supply pumps of the pressure adjusting units and the differential pressure control valves are in operation, the control device performs self-excited vibration suppression control over the differential pressure control valves, the self-excited vibration suppression control being carried out in such a manner that a valve element separated from a valve seat is caused to abut on the valve seat, and, upon abutting on the valve seat, the valve element is separated from the valve seat.

公开(公告)号：US20180281763A1

公开(公告)日：2018-10-04

申请号：US15763732

申请日：2016-09-29

Applicant: ADVICS CO., LTD.

Inventor： Yosuke OHMORI ,  Masaki SHIOTA ,  Yosuke YAMADA ,  Yukio MORI

IPC: B60T8/1755 ,  B60T7/12 ,  B60W30/09 ,  B60W10/06 ,  B60W10/188

Abstract: A vehicle travel assistance system includes distributing half of target yawing moment to inner wheels and distributing the rest to outer wheels; increasing the amount of increase in the braking force of the inner wheels as the target yawing moment distributed to the inner wheels increases, and increasing the amount of decrease in the braking force of the outer wheels as the target yawing moment distributed to the outer wheels increases; and causing the braking force of the inner wheels to increase according to the amount of increase in the braking force of the inner wheels, and causing the braking force of the outer wheels to decrease according to the amount of decrease in the braking force of the outer wheels.

公开(公告)号：US20180273009A1

公开(公告)日：2018-09-27

申请号：US15762607

申请日：2016-10-20

Applicant: ADVICS CO., LTD.

Inventor： Motokazu ISHIKAWA

IPC: B60T13/68 ,  B60T8/17 ,  B60T11/20 ,  B60T13/58

CPC classification number: B60T13/686 ,  B60T7/042 ,  B60T8/00 ,  B60T8/17 ,  B60T8/267 ,  B60T8/4081 ,  B60T11/20 ,  B60T13/58 ,  B60T13/662 ,  B60T13/68 ,  B60T13/745 ,  B60T2270/404 ,  B60T2270/82

Abstract: The present invention comprises: a first pressure-regulating mechanism that pressurizes a first wheel cylinder on either the left or right front wheel side of a vehicle, by using the movement of a first control piston driven by a first electric motor; a second pressure-regulating mechanism that pressurizes a second wheel cylinder on the other side, out of the left and right front wheels, by using the movement of a second control piston driven by a second electric motor; an opening/closing means interposed in a connection fluid path that connects the first wheel cylinder and the second wheel cylinder; and a control means. If the operation amount for a braking operation member is less than a prescribed value, the control means puts the opening/closing means in a connected state, puts the first electric motor in an electricity-supplied state, and puts the second electric motor in a non-electricity-supplied state.

公开(公告)号：US20180201245A1

公开(公告)日：2018-07-19

申请号：US15743515

申请日：2016-07-20

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

Inventor： Yusuke KAMIYA ,  Takahiro OKANO

IPC: B60T8/40 ,  B60T8/1763 ,  B60T8/46 ,  B60T8/171 ,  B60T8/1761

CPC classification number: B60T8/4068 ,  B60T7/042 ,  B60T8/00 ,  B60T8/17 ,  B60T8/171 ,  B60T8/172 ,  B60T8/17616 ,  B60T8/17636 ,  B60T8/40 ,  B60T8/4077 ,  B60T8/46 ,  B60T13/146 ,  B60T13/662 ,  B60T13/686 ,  B60T2210/12

Abstract: A vehicle brake device provided with a hydraulic pressure generating portion, an actuator and a controlling portion which maintains a driving force of the driving portion when a control subject pressure in a control subject chamber is within a dead zone, wherein the control subject pressure varies in response to a variation of the master pressure and a pulsation is generated in the master pressure accompanying an operation of the actuator. The vehicle brake device further includes a rigidity information obtaining portion which obtains a rigidity information and a dead zone setting portion which sets the dead zone based on the rigidity information obtained by the rigidity information obtaining portion such that the higher the rigidity of the control subject chamber, or the higher the probability of rigidity increase of the control subject chamber, the wider the dead zone is set.

公开(公告)号：US20180134156A1

公开(公告)日：2018-05-17

申请号：US15574634

申请日：2016-05-18

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

Inventor： Takashi NONAKA ,  Jun MIZUNO ,  Daisuke KOHARA ,  Yuji YOSHII ,  Gen INOUE ,  Yasushi KOBAYASHI ,  Hiroshi OMINE

IPC: B60K28/16 ,  B60W30/02 ,  B60W30/18

CPC classification number: B60K28/16 ,  B60L15/20 ,  B60L2240/461 ,  B60L2260/26 ,  B60T8/175 ,  B60T8/1761 ,  B60W30/02 ,  B60W30/18172 ,  B60W2520/14 ,  B60W2540/103 ,  B60W2540/18 ,  B60W2550/142 ,  B60W2720/26 ,  F02D29/02 ,  Y02T10/7258

Abstract: The vehicle control apparatus is provided with a vehicle body speed deriving portion that derives a vehicle body speed of a vehicle, a wheel speed difference deriving portion that derives a wheel speed difference which is a deviation between the maximum wheel speed and the minimum wheel speed of the wheels of the vehicle, a request drive amount deriving portion that derives a request drive amount for the drive source of the vehicle, a torque suppressing device that suppresses torque of a driving wheel, a traction control portion that controls the torque suppressing device and suppresses an acceleration slip of the driving wheel based on the wheel speed difference or a combination of the wheel speed difference and at least one of the vehicle body speed and the request drive amount.

公开(公告)号：US20180118182A1

公开(公告)日：2018-05-03

申请号：US15567483

申请日：2016-05-27

Applicant: ADVICS CO., LTD.

Inventor： Yoji INOUE ,  Nan LI

IPC: B60T13/57 ,  F16J15/52 ,  F16K15/14

Abstract: A check valve of this negative pressure-type booster device is provided with: a cylindrical section that is integrally formed with a shell disposed on one side, communicates with a connection pipe, and is formed in a cylindrical shape protruding toward the inside of a housing; and a valve body section that is disposed inside the cylindrical section, and is axially fitted, within the cylindrical section, to the cylindrical section such that air is permitted to flow from a negative pressure chamber to the connection pipe while the air is prohibited from flowing from the connection pipe to the negative pressure chamber.

公开(公告)号：US20180112662A1

公开(公告)日：2018-04-26

申请号：US15558675

申请日：2016-04-27

Applicant: ADVICS CO., LTD.

Inventor： Takashi HASHIBA ,  Naoki HAKAMADA ,  Takahiro NAGANUMA ,  Tomoaki KAWABATA

IPC: F04C15/00 ,  F04C2/08

CPC classification number: F04C15/0026 ,  F04C2/084 ,  F04C2/086 ,  F04C2/102 ,  F04C15/06 ,  F04C2230/602 ,  F04C2230/92 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2270/17

Abstract: In the present invention, polishing lines 71f are connected to an outer circumferential high-pressure region, but are not connected to each area that is a low-pressure region. In this configuration, the polishing lines 71f are connected to the outer circumferential high-pressure region where there is high discharge pressure, so high-pressure brake fluid is introduced within the polishing lines 71f. Therefore, a pushback effect is obtained, wherein gear pumps 19 and 39 are pushed back on the basis of the high-pressure brake fluid pressure. Furthermore, the polishing lines 71f are connected to the outer circumferential high-pressure region but are not connected to each area that is a low-pressure region, so high-pressure can be maintained within the polishing lines 71f, and a reduction in the pushback effect can be prevented. Accordingly, a decrease in the loss torque reduction effect can be prevented, and the loss torque can be further reduced.