公开(公告)号：US20190219185A1

公开(公告)日：2019-07-18

申请号：US16318570

申请日：2017-07-25

Applicant: ADVICS CO., LTD.

Inventor： Kenta ISHIKAWA ,  Masaki ARAKAWA ,  Kimiyasu SUZUKI

IPC: F16K17/04 ,  F16K15/02 ,  B60T8/173 ,  F16K47/02 ,  B60T13/68 ,  B60T13/14 ,  B60T8/176

CPC classification number: F16K17/0433 ,  B60T8/173 ,  B60T8/176 ,  B60T13/145 ,  B60T13/686 ,  F16K15/02 ,  F16K47/02

Abstract: A vacuum booster check valve comprises: a main body attached to a vacuum inlet; a first passage, an accommodation section, and a second passage; a valve seat formed in the first passage; a valve body accommodated within the accommodation section; and springs that bias the valve body toward the valve seat. The check valve also comprises vibration absorption sections whereby, when the valve body is seated on the valve seat, one part of the valve body absorbs more vibrations imparted to the valve body compared to other parts of the valve body.

公开(公告)号：US20190202422A1

公开(公告)日：2019-07-04

申请号：US16325344

申请日：2017-08-30

Applicant: ADVICS CO., LTD.

Inventor： Hikaru KAWAMURA ,  Shun TSUKAMOTO

IPC: B60T8/1761 ,  B60T8/40 ,  B60T8/172 ,  B60T13/74

CPC classification number: B60T8/1761 ,  B60T8/17 ,  B60T8/172 ,  B60T8/40 ,  B60T13/74 ,  B60T13/745 ,  B60T2201/03 ,  H02M7/48

Abstract: The braking control device generates braking force by operating an electric motor to press a friction member against a wheel-fixed rotary member. The braking control device includes: a wheel speed sensor detecting wheel speed; a rotation angle sensor detecting a motor rotation angle; a drive circuit driving the motor; and a controller controlling the drive circuit. The controller sets a current limit circle within d-axis/q-axis current characteristics of the motor based on specifications of the drive circuit, calculates a voltage limit circle within the d-axis/q-axis current characteristics based on the rotation angle, executes slip suppression control for reducing the degree of wheel slip based on the wheel speed, calculates d-axis and q-axis target current values based on intersection points of the current limit circle and the voltage limit circle when execution of slip suppression control begins, and controls the drive circuit based on the d-axis and q-axis target current values.

公开(公告)号：US20190193695A1

公开(公告)日：2019-06-27

申请号：US16303437

申请日：2017-05-22

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

Inventor： Masaki NINOYU ,  Yusuke KAMIYA

IPC: B60T8/1761 ,  B60T13/14 ,  B60T8/88 ,  B60T17/22

CPC classification number: B60T8/1761 ,  B60T8/17 ,  B60T8/885 ,  B60T13/14 ,  B60T13/142 ,  B60T17/222 ,  B60T2210/12 ,  B60T2270/14

Abstract: A vehicle braking device of a by-wire type includes an actuator configured to flow out a fluid in a subject wheel cylinder among the plurality of wheel cylinders to flow towards the master chamber upon pressure decreasing control for the subject wheel cylinder under an ABS control execution and a control portion executing a first control controlling the driving portion such that an increasing amount of the master pressure under a pressure increasing control becomes great or a decreasing amount thereof under a pressure decreasing control becomes small and/or executes a second control which controls the driving portion such that the increasing amount of the master pressure under the pressure increasing control becomes small or the decreasing amount thereof under the pressure decreasing control of the master pressure becomes great.

公开(公告)号：US20190193572A1

公开(公告)日：2019-06-27

申请号：US16330781

申请日：2017-07-25

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

Inventor： Daisuke NAKATA ,  Kosuke HASHIMOTO ,  Kenji SAKAMOTO

IPC: B60L7/26 ,  B60T13/58 ,  B60T8/17 ,  B60L7/18

CPC classification number: B60L7/26 ,  B60L7/18 ,  B60L7/24 ,  B60T8/17 ,  B60T13/586 ,  B60T2270/604

Abstract: A vehicle braking device sets a target hydraulic braking force based on the difference between the execution regeneration braking force, which is actually generated regeneration braking force and the requested braking force which is to be applied to the vehicle wheels and includes a hydraulic pressure control portion that raises the target hydraulic braking force by a predetermined value at a timing when the difference between the execution regeneration braking force and the maximum value thereof is equal to or less than a judgement threshold value and a threshold value setting portion that sets the judgement threshold value on the basis of the requested braking force gradient when the liquid amount inside the hydraulic chamber is less than a predetermined amount, and sets the judgement threshold value on the basis of the target hydraulic braking force gradient when the liquid amount is equal to or more than the predetermined amount.

公开(公告)号：US20190168745A1

公开(公告)日：2019-06-06

申请号：US16313730

申请日：2017-06-26

Applicant: ADVICS CO., LTD.

Inventor： Yosuke HASHIMOTO

IPC: B60W30/045 ,  B60T8/1755 ,  B60W10/18 ,  B60W10/16

Abstract: During vehicle turning, during which a behavior stabilization control is not carried out, a vehicle driving assistance device carries out a turning assist control including: yaw moment control for increasing the amount of drive torque distributed to a drive wheel that, among two left and right drive wheels of the vehicle, is on the outer side of the turn by imparting braking torque to the drive wheel that is on the inner side of the turn; and a deceleration control for decelerating the vehicle. At this time, the driving assistance device calculates a control moment amount and calculates a control deceleration amount on the basis of a travel mode selected by operation of an operation unit.

公开(公告)号：US10286887B2

公开(公告)日：2019-05-14

申请号：US15129166

申请日：2015-03-31

Applicant: ADVICS CO., LTD.

Inventor： Yusuke Nakagawa ,  Yasuhito Ishida

IPC: B60T8/58 ,  B60T7/12 ,  B60T8/172 ,  B60T7/04 ,  B60T7/18 ,  B60W30/14

Abstract: This driving assistance device includes a braking control unit and a target speed determination unit. The braking control unit executes driving assistance control for adjusting the braking force to be applied to a vehicle by actuating a brake actuator such that the vehicle body speed does not exceed a target speed. In cases where the accelerator pedal is being operated in a state where the braking control unit is executing the driving assistance control, the target speed determination unit determines the target speed depending on the larger value of either: the vehicle body speed that is correlated with at least one of the wheel speeds of the plurality of wheels provided to the vehicle; or the lower speed limit value that has been set.

公开(公告)号：US10259437B2

公开(公告)日：2019-04-16

申请号：US15510842

申请日：2015-11-25

Applicant: ADVICS CO., LTD.

Inventor： Kunihiro Nishiwaki ,  Takayuki Yamamoto ,  Kyosuke Hata ,  Yasuhito Ishida

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

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.

公开(公告)号：US20190063467A1

公开(公告)日：2019-02-28

申请号：US16073049

申请日：2017-01-27

Applicant: ADVICS CO., LTD.

Inventor： Kimiyasu SUZUKI

IPC: F15B11/10

Abstract: In this negative-pressure booster, one of a negative-pressure valve seat and a negative-pressure valve section has, provided thereto, one or more first protruding sections abutting against the other of the negative-pressure valve seat and negative-pressure valve section, at a site other than a first annular abutment site, in an initial state where an operational force has not been applied to an input member; and/or one of an atmospheric valve seat and an atmospheric valve section has, provided thereto, one or more second protruding sections abutting against the other of the atmospheric valve seat and atmospheric valve section, at a site other than a second annular abutment site, in the initial state where an operational force has not been applied to the input member.

公开(公告)号：US20190061532A1

公开(公告)日：2019-02-28

申请号：US16078265

申请日：2017-02-24

Applicant: ADVICS CO., LTD.

Inventor： Masaki MARUYAMA ,  Takahiro YAMAGUCHI ,  Koichi KOKUBO

IPC: B60L7/26 ,  B60T8/171 ,  B60T8/72 ,  B60T8/36 ,  B60T13/66 ,  B60T13/68 ,  B60T8/40 ,  B60T13/14

Abstract: An electric braking device includes: a first valve unit for adjusting a first differential pressure between a master cylinder side liquid pressure and a wheel cylinder side liquid pressure; a storage unit forming a fluid storage chamber; second valve units for adjusting a second differential pressure between the master cylinder side liquid pressure and a storage chamber side liquid pressure; an electric pump for discharging the fluid in the storage chamber; and a control unit which, while operating the electric pump during a time from initiation of braking force application until a request value acquired by a request braking force acquiring unit reaches a maximum value, controls the first valve unit such that the first differential pressure becomes zero, and controls the second valve units such that the second differential pressure becomes zero.

公开(公告)号：US20190016325A1

公开(公告)日：2019-01-17

申请号：US16070811

申请日：2017-01-19

Applicant: ADVICS CO., LTD.

Inventor： Yoshiyuki Yasui ,  Tomonori Katsuyama

IPC: B60T13/74 ,  B60T1/06 ,  F16D65/18 ,  B60T8/17 ,  H02K7/102 ,  H02K7/116 ,  H02K11/21 ,  H02K11/33

CPC classification number: B60T13/741 ,  B60T1/065 ,  B60T7/042 ,  B60T7/107 ,  B60T8/00 ,  B60T8/17 ,  B60T8/171 ,  B60T13/746 ,  F16D65/18 ,  F16D65/183 ,  F16D2066/005 ,  F16D2121/24 ,  F16D2125/40 ,  F16D2125/48 ,  H02K7/102 ,  H02K7/116 ,  H02K11/21 ,  H02K11/33 ,  H02K2211/03

Abstract: This electric braking device is provided with: an electric motor MTR that, in accordance with an operation amount Bpa of a braking operation member BP, generates a pressing force Fba, being a force pressing a friction member MSB against a rotary member KTB that rotates integrally with a wheel WHL of the vehicle; and a circuit board KBN to which a processor MPR and a bridge circuit BRG are mounted. The device is further provided with a rotation angle sensor MKA for detecting the rotation angle Mka of the electric motor, and drives the electric motor MTR on the basis of the rotation angle Mka. An end face Mmk of the rotation angle sensor MKA is fixed so as to be in contact with the circuit board KBN. The device is further provided with a pressing force sensor FBA for detecting the pressing force Fba, and drives the electric motor MTR on the basis of the pressing force Fba. An end face Mfb of the pressing force sensor FBA is fixed so as to be in contact with the circuit board KBN.