Patents Assigned to Advics Co., Ltd.
  • Patent number: 11014542
    Abstract: A braking control device comprises: an operational displacement sensor detecting operational displacement of a braking member; a first hydraulic pressure unit that reads operational displacement as a first displacement processing value via a first displacement signal line and adjusts braking hydraulic pressure based on the first displacement processing value; a second hydraulic pressure unit that reads operational displacement as a second displacement processing value via a second displacement signal line and adjusts braking hydraulic pressure based on the second displacement processing value; and a communication bus transmitting signals between the first and second hydraulic pressure units. The first hydraulic pressure unit acquires the second displacement processing value via the communication bus and determines suitability/unsuitability of the first displacement processing value.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 25, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • Patent number: 11009092
    Abstract: A friction material which comprises a fibrous base, a binder, a lubricating material, an organic filler, and an inorganic filler, the friction material having a copper element content of 0.5 wt % or less with respect to the whole friction material, wherein the lubricating material comprises graphite having an average particle diameter of 10.0 ?m or smaller and the inorganic filler includes barium sulfate, which comprises small-diameter barium sulfate having an average particle diameter of 1.5 ?m or smaller and a purity of 95.0% or higher.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 18, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Shusuke Suzuki, Naoki Odani, Masaaki Kobayashi
  • Publication number: 20210139006
    Abstract: A control device is applied to a vehicle that has a braking device configured to be able to adjust the braking force applied to the vehicle. The control device has a stopping braking force imparting unit that controls the braking device in order to apply a stopping braking force to the vehicle, as a minimum value of the braking force required to keep the vehicle stopped. The control device also has a deviation quantity deriving unit that derives a deviation quantity between a state quantity of the vehicle obtained when the stopping braking force is applied to the vehicle by the stopping braking force imparting unit and an ideal value of the state quantity of the vehicle. The control device also has a stopping braking force updating unit that updates the stopping braking force on the basis of the deviation quantity derived by the deviation quantity deriving unit.
    Type: Application
    Filed: June 29, 2018
    Publication date: May 13, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Tatsuya HIROMURA, Yukio MORI, Masayuki ASANO
  • Publication number: 20210139005
    Abstract: A brake control device includes a first braking unit and a second braking unit for applying braking force to wheels of a vehicle. The second braking unit generates auxiliary braking force when actual braking force generated by the first braking unit is short by a predetermined amount. This brake control device includes a determination unit that determines whether a delay correlation value correlated with response delay of the actual braking force is within an allowable range when the auxiliary braking force is generated, and a control unit that executes auxiliary reduction control for reducing the auxiliary braking force when the determination unit determines that the delay correlation value is within the allowable range.
    Type: Application
    Filed: July 29, 2019
    Publication date: May 13, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Kenichiro TAKAHASHI
  • Patent number: 11001242
    Abstract: A braking control device drives an electric motor based on a command pressing force corresponding to the required wheel braking force, and presses a friction member against a rotation member fixed to the wheel to generate a wheel braking force. The braking control device includes: a sensor for detecting wheel speed; a sensor for detecting the actual pressing force applied by the friction member; and a controller for calculating the target pressing force based on the command pressing force, and controlling the motor so that the target and actual pressing forces match. The controller calculates wheel slip state quantity based on the wheel speed, and executes, based on the slip state quantity, slip suppression control for reducing the degree of wheel slippage. Based on the actual pressing force at the start of the slip suppression control, the controller reduces the command pressing force and calculates the target pressing force.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 11, 2021
    Assignee: ADVICS CO., LTD.
    Inventor: Yoshiyuki Yasui
  • Publication number: 20210129815
    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.
    Type: Application
    Filed: March 28, 2019
    Publication date: May 6, 2021
    Applicant: Advics Co., Ltd.
    Inventors: Tomotaka ASANO, Takayuki YAMAMOTO, Yasuhito ISHIDA
  • Publication number: 20210122339
    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.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 29, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Ken KUZUYA, Tomotaka ASANO, Yasuhito ISHIDA, Tatsushi KOBAYASHI, Takayuki YAMAMOTO
  • Publication number: 20210114569
    Abstract: A brake control device is applied to a brake device that controls a front-wheel braking force and a rear-wheel braking force. The brake control device includes a ratio calculation circuit that calculates a target front and rear braking force distribution ratio based on a target pitch angle, and a brake control circuit that performs a stability control by operating the brake device based on the target front and rear braking force distribution ratio during braking.
    Type: Application
    Filed: March 8, 2019
    Publication date: April 22, 2021
    Applicant: Advics Co., Ltd.
    Inventor: Yusaku YAMAMOTO
  • Publication number: 20210094521
    Abstract: A brake control device for controlling an electric parking brake may include: a piston capable of pressing a brake pad in accordance with the hydraulic pressure in a cylinder; a linearly moving member that adjusts, by reciprocating in the cylinder, the pressing force applied to the brake pad by the piston; and an actuator that moves the linearly moving member by operating based on a target pressing force, which is a target value of the pressing force corresponding to an output value obtained from a sensor that detects information correlating with the hydraulic pressure. The brake control device is provided with: an abnormality detection unit that detects an abnormality of the sensor; and an actuator control unit that, if an abnormality is detected, controls the operation level of the actuator based on an output value obtained prior to the detection of the abnormality.
    Type: Application
    Filed: August 31, 2018
    Publication date: April 1, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Terushige URAOKA, Keita NAKANO
  • Patent number: 10960863
    Abstract: A vehicle braking control device is capable of further raising the speed at which vehicle vehicle-body deceleration increases when automatic braking processing implementation begins. Provided as a braking control device is a control device comprising: an acquisition unit that acquires an indicator; and a braking control unit that starts the implementation of automatic braking processing if a determination is made, on the basis of the indicator, that an automatic braking condition has been established. In the automatic braking process, the braking control unit restricts the supply of brake fluid to wheel cylinders corresponding to the rear wheels, and supplies brake fluid to wheel cylinders corresponding to the front wheels to increase the pressure of the wheel cylinders, thereby increasing the braking power for the front wheels and also giving the rear wheels braking power corresponding to the driving amount of a motor for parking.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: March 30, 2021
    Assignee: ADVICS CO., LTD.
    Inventor: Terushige Uraoka
  • Patent number: 10955018
    Abstract: This brake pad assembly is, for example, equipped with: a brake pad that includes a lining and a back plate; a detection unit attached to the plate and detects abrasion of the lining; and a retainer for attaching the unit to the plate in a detachable manner. The retainer has: a base part that contacts a surface of the plate; a first holding part that holds the retainer in a prescribed position on the plate; a second holding part provided so as to be movable between a restricting position in which the unit is restricted from separating from the plate, and a release position in which the unit can be detached from the plate; a biasing part that elastically biases the second holding part toward the restricting position; and an operation part that moves the second holding part to the release position by means of an applied external force.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 23, 2021
    Assignee: ADVICS CO., LTD.
    Inventor: Tadashi Isshiki
  • Patent number: 10951087
    Abstract: The electric brake motor unit has: a motor; a connector having a connector terminal; a first section extending in a first direction and having a first contact portion electrically connected to the connector terminal; a second section extending in the first direction and having a second contact portion electrically connected to a motor terminal; and an intermediate section extending in a second direction intersecting with the first direction between the first section and the second section. The electric brake motor unit is provided with: a bus bar in which the first section, the intermediate section, and the second section are connected in a crank shape; and a motor bracket mounted on the motor and having two positioning portions that are mutually separately positioned with a space through which the intermediate section passes and are used for positioning the intermediate section in the first direction.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 16, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Takahiro Ozawa, Yuichi Takeo, Yasuhito Hayashi
  • Patent number: 10946843
    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.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: March 16, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yosuke Ohmori, Masaki Shiota, Yosuke Yamada, Yukio Mori
  • Patent number: 10948035
    Abstract: A disc brake half-caliper includes at least one cylindrical recess formed in a central portion of the half-caliper, the at least one cylindrical recess configured to support a piston for movement in an axial direction, and a pair of bridge portions formed on opposite sides of the central portion. At least one of the bridge portions extends further in the axial direction toward a first side of the disc brake half caliper than the central portion, defines at least one through hole extending therethrough in the axial direction, and terminates on the first side at a flat surface perpendicular to the axial direction, and has at least one cavity formed in the flat surface with a bottom at which the at least one through hole opens.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 16, 2021
    Assignee: ADVICS CO., LTD.
    Inventor: Masakazu Takeuchi
  • Patent number: 10940844
    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.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: March 9, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Tatsushi Kobayashi, Takayuki Yamamoto, Yasuhito Ishida
  • Patent number: 10940847
    Abstract: A brake control device adjusts a front wheel braking hydraulic pressure of front wheel cylinders provided on front wheels of a vehicle and a rear wheel braking hydraulic pressure of rear wheel cylinders provided on rear wheels of the vehicle. The brake control device includes a hydraulic pressure generating unit configured to adjust a hydraulic pressure generated by an electric motor to an adjusted hydraulic pressure and apply the adjusted hydraulic pressure as the rear wheel braking hydraulic pressure and a hydraulic pressure correcting unit configured to adjust to decrease the adjusted hydraulic pressure to be a corrected hydraulic pressure, and apply the corrected hydraulic pressure as the front wheel braking hydraulic pressure.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: March 9, 2021
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Osayoshi Kato, Yoshio Masuda, Hiroyuki Kodama, Takayuki Yamamoto, Yasuji Mizutani
  • Publication number: 20210062882
    Abstract: A motion conversion mechanism of a brake device includes a rotation member and a linear motion member that linearly moves accompanying the rotation of the rotation member. The rotation member is rotationally driven through a third gear. A male screw and a female screw mesh with each other on the side opposite to the brake shoe of the third gear, where one end of an actuating member receives a force for actuating the brake shoe from the linear motion member, and the other end actuates the brake shoe. The guide member that guides the actuating member is made of a material different from that of the rotation member, and slidably guides the actuating member in the axial direction.
    Type: Application
    Filed: March 28, 2019
    Publication date: March 4, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Yohei KOMIZO, Jin YAMADA
  • Publication number: 20210067370
    Abstract: The present invention comprises: a first control device and a second control device that control the operation of a vehicle; a start signal output unit that outputs a start signal to the first control device and the second control device if the vehicle is in a prescribed state; an input detection unit that detects the input of the start signal to the first control device and the second control device in the state in which the start signal has been output to the first control device and the second control device by the start signal output unit; and pause signal output units that output a pause signal to the first control device and the second control device if the state in which the start signal input has been detected by the input detection unit has continued for at least a prescribed amount of time.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 4, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Ryosuke ENDO, Takayuki YAMAMOTO, Tomotaka ASANO, Tatsushi KOBAYASHI, Jun NOMURA
  • Publication number: 20210062879
    Abstract: A pad support spring includes a U-shaped portion comprising an outer peripheral surface portion, an inner peripheral surface portion and a linking surface portion. The U-shaped portion is configured to include: a pad holding portion; a cutout portion provided by cutting out a part from the linking surface portion toward the inner peripheral surface portion; a tongue piece portion which in an unassembled state has a base end formed by the cutout portion on the outer peripheral surface portion side of the pad holding portion and a distal end which projects out from an opposing surface of the inner peripheral surface portion, and which in an assembled state deforms elastically to press a brake pad in conjunction with the U-shaped portion; and a first slit portion provided by cutting out part of a first linking part.
    Type: Application
    Filed: September 21, 2018
    Publication date: March 4, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Naoki OKADA, Yohei KOMIZO, Takao IIDA
  • Patent number: 10933851
    Abstract: According to one embodiment, for example, when it is determined that a certain condition has been satisfied while first antilock control is being executed, a controller of a brake control apparatus executes second antilock control by opening and closing a solenoid valve with a motor stopped so that brake fluid of the wheel cylinder is caused to flow into a reservoir, the second antilock control including a second pressure reduction mode, the second pressure reduction mode reducing a pressure of a wheel cylinder while substantially equilibrating the pressure of the wheel cylinder and a pressure of the reservoir at a certain pressure or larger, the certain pressure being larger than zero.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 2, 2021
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jun Shinozaki, Koichi Kokubo, Masayuki Naito, Yuji Yoshii, Masahiro Hara