Patents Assigned to Advics Co., Ltd.
  • Brake control apparatus for vehicle
    Patent number: 11260839
    Abstract: Provided is a brake control apparatus configured to: set a target slip degree of each of three wheels other than an outer front wheel to a slip degree of the outer front wheel; perform feedback control so that an actual slip degree of each of the three wheels becomes close to the target slip degree; and decrease a feedback control amount of a wheel which is to be controlled to increase an anti-spin yaw moment when an understeer suppression condition is satisfied.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: March 1, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Advics Co., Ltd.
    Inventors: Masahiro Hara, Hiroaki Nagase, Kei Amamoto
  • BRAKE OPERATION UNIT
    Publication number: 20220055589
    Abstract: A brake operation unit includes, for example, a master cylinder that movably houses a piston moving in connection with an operation member; an electric discharging unit including a motor and a discharging mechanism that is caused to discharge a working fluid by operation of the motor; and a reaction force applying mechanism that applies a reaction force to the operation member. A second central axis of the motor is separated from a first central axis of the master cylinder, and intersects a direction parallel to the first central axis. When viewed in a direction parallel to the second central axis, the first central axis is located between the second central axis and the reaction force applying mechanism.
    Type: Application
    Filed: November 15, 2019
    Publication date: February 24, 2022
    Applicant: ADVICS CO., LTD.
    Inventors: Keisuke KIMURA, Takashi MURAYAMA
  • Disk brake device
    Patent number: 11242901
    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: Grant
    Filed: September 21, 2018
    Date of Patent: February 8, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Naoki Okada, Yohei Komizo, Takao Iida
  • Hydraulic pressure control device
    Patent number: 11235744
    Abstract: This hydraulic pressure control device is provided with: a housing having a motor mounted to a surface on one side thereof and which has an oil passage formed thereinside; a case which is mounted to a surface on the other side of the housing and has a circuit board disposed thereinside; a sensor which detects a signal of the motor; a signal wire which connects between the sensor and the circuit board; and a power wire through which electric power is supplied to the motor, wherein the signal wire and the power wire are disposed inside a single through-hole that is formed in the housing so as to penetrate from the surface on the one side to the surface on the other side, and the signal wire or the power wire within the through-hole is covered with a shielding member that blocks out power supply noise generated during power supply.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 1, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Atsushi Inoue, Tsuyoshi Otake
  • VEHICLE CONTROL DEVICE
    Publication number: 20220017056
    Abstract: The present invention relates to, for example, a vehicle control device including a driving force control unit that controls a driving force generated by a wheel of a vehicle; and a braking force control unit that controls a braking force generated by the wheel; where the driving force control unit generates the driving force of a first prescribed amount and the braking force control unit generates the braking force of a second prescribed amount to control the speed of the vehicle to be constant; and acceleration or deceleration are both controllable by performing one of control of the driving force by the driving force control unit and control of the braking force by the braking force control unit.
    Type: Application
    Filed: February 25, 2020
    Publication date: January 20, 2022
    Applicant: ADVICS CO., LTD.
    Inventors: Hirotaka TAKEYA, Keita NAKANO
  • Braking device for vehicle
    Patent number: 11225229
    Abstract: The braking device is provided with an electromagnetic valve, which is an example of a device to be controlled, and a valve control unit for driving the electromagnetic valve by means of PWM control. When driving the electromagnetic valve by inputting a drive signal to the electromagnetic valve, the valve control unit changes the frequency of the drive signal within a frequency range. Note that the width of the frequency range is set on the basis of the minimum audible field among equal-loudness contours.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 18, 2022
    Assignee: ADVICS CO., LTD.
    Inventor: Akinori Miyachi
  • Braking control device for vehicle
    Patent number: 11220248
    Abstract: A control device including a valve-opening control unit that reduces the current value below the holding current value and increases the opening degree of the differential pressure adjustment valve when an increase in a manipulated variable of a braking operation member has been detected while holding control is being performed; and a valve-closing control unit that, when a decrease in the manipulated variable of the braking operation member has been detected while the opening degree of the differential pressure adjustment valve has been increased by the valve-opening control unit, performs a pushing process of increasing the current value above the holding current value and closing the differential pressure adjustment valve, and a holding process of setting the current value to the holding current value after the pushing process has ended.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 11, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Tatsuya Hiromura, Yukio Mori
  • PUMP
    Publication number: 20220003232
    Abstract: A pump includes a fluid outflow mechanism that causes the brake fluid in the discharge chamber to flow out into the suction chamber in accordance with decrease in the volume of the discharge chamber when the feed ring of the valve portion decreases the volume of the discharge chamber in cooperation with the increasing movement of the volume of the first pump chamber in a state where the first pump chamber and the discharge chamber are filled with brake fluid in the suction step.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 6, 2022
    Applicant: ADVICS CO., LTD.
    Inventor: Tomoo HARADA
  • Electromagnetic valve
    Patent number: 11215293
    Abstract: A yoke is provided with a notch, notched from two points P1 and P2 on a circumference forming a sleeve-side insertion hole toward the outside of the circumference, the notch having a minimum distance between the points P1 and P2 as a width W and the distance from a straight line linking the points P1 and P2 in a direction orthogonal to the straight line as a length L. The width W of the notch is set on the basis of a target attraction force for attracting a plunger, the attraction force increasing with an increase in the width W, and the length L of the notch is greater than or equal to a prescribed length Ld where the attraction force increasing with an increase in the length L becomes constant at the target attraction force in the set width W irrespective of an increase in the length L.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: January 4, 2022
    Assignee: ADVICS CO., LTD.
    Inventors: Junichi Fukuda, Koichi Hashida, Hidenori Hayakawa
  • VEHICULAR BRAKE DEVICE
    Publication number: 20210394733
    Abstract: A vehicle braking device includes a first supply unit supplying fluid to main flow channels connected to wheel cylinders of a vehicle, a differential solenoid valve provided on the main flow channels and generating a differential pressure across the differential solenoid valve, a second supply unit supplying fluid to the wheel cylinders by drawing at least some fluid supplied from the first supply unit through branch flow channels branching off from the main flow channels upstream of the differential solenoid valve, and a setting unit setting a supply amount of fluid supplied from the first supply unit in accordance with a draw amount of fluid drawn by the second supply unit.
    Type: Application
    Filed: November 18, 2019
    Publication date: December 23, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Masaki MARUYAMA, Yoshio MASUDA, Shunya WATANABE
  • Vehicle braking device
    Patent number: 11203331
    Abstract: A hydraulic circuit comprises: a first pressure-boosting flow path that connects a first main flow path and a first wheel cylinder; a first pressure-boosting valve that is disposed in the first pressure-boosting flow path and that opens in a non-energized state; a first pressure-reducing flow path that connects the first wheel cylinder and a reservoir; a first pressure-reducing valve that is disposed in the first pressure-reducing flow path and that closes in a non-energized state; a second pressure-boosting flow path; a second pressure-boosting valve; a second pressure-reducing flow path; and a second pressure-reducing valve. A control unit comprises: a first drive circuit that controls the first pressure-reducing valve; and a second drive circuit that is separate from the first drive circuit and that controls the second pressure-reducing valve.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 21, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Osayoshi Kato, Hiroyuki Ando, Takahiro Yamaguchi, Yoshio Masuda
  • BRAKE CONTROL DEVICE
    Publication number: 20210387607
    Abstract: The present disclosure provides a brake control device applied to a vehicle including a hydraulic brake device that generates a hydraulic braking force by pressing a braking member with hydraulic pressure toward a member-to-be-braked that rotates integrally with a wheel; and an electric brake device that generates an electric braking force by pressing the braking member by driving a motor toward the member-to-be-braked. A controller that controls the electric brake device is provided. The controller executes, when a predetermined condition is satisfied, a positional control for driving a motor and moving a propeller shaft that transmits the driving force of the motor to the braking member toward the member-to-be-braked as compared to when the predetermined condition is not satisfied.
    Type: Application
    Filed: April 26, 2019
    Publication date: December 16, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Hirotaka TAKEYA, Shunsuke MURATA, Keita NAKANO
  • Vehicle control device
    Patent number: 11198441
    Abstract: This vehicle control device is provided with: a determination unit for determining whether proscribed conditions are satisfied, including the inability to determine that a longitudinal acceleration target value is fluctuating and the ability to determine that the longitudinal acceleration of a vehicle is fluctuating; and a cooperative control unit which, on the condition that it has been determined that the prescribed conditions are satisfied, performs a braking/driving cooperative process to hold a torque output from one of a driving torque generation device and a braking torque generation device at a value which is larger than the torque at the point in time at which the prescribed conditions were met, and adjusts the torque output from the other device through feedback control using the longitudinal acceleration target value and the longitudinal acceleration of the vehicle.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 14, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Masayuki Asano, Yukio Mori, Tatsuya Hiromura
  • Electric brake device and vehicular brake system including electric brake device
    Patent number: 11187291
    Abstract: An electric brake device to be mounted on a vehicle includes a rotating body, a friction member, an electric motor, a piston, an operation conversion mechanism, an actuator, and a controller. The operation conversion mechanism is configured to include a rotating member and a linear motion member. The controller is configured to selectively execute a standby control of causing the linear motion member to stand by at a standby position where a clearance between the friction member and the rotating body is not larger than a backlash between a male screw and a female screw, and a backward movement control of moving the linear motion member backward to a backward movement position where the clearance is allowed to be equal to or more than the backlash, in a case where there is no braking force request for the electric brake device.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: November 30, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventor: Yoji Yamauchi
  • BRAKING CONTROL DEVICE
    Publication number: 20210362698
    Abstract: A braking control device includes an upstream mechanism control unit, a determination unit, and a control unit. The upstream mechanism control unit is configured to feedback control the upstream mechanism in such a manner that a detected hydraulic pressure detected by a hydraulic pressure sensor is brought to an upstream target hydraulic pressure. The hydraulic pressure sensor detects a hydraulic pressure of the hydraulic pressure circuit. The determination unit is configured to determine, based on the detected hydraulic pressure by the hydraulic pressure sensor, whether hydraulic pressure hunting is occurring. The control unit is configured to control the downstream mechanism based on the upstream target hydraulic pressure and the target wheel pressure in a case where the determination unit determines that the hydraulic pressure hunting is occurring.
    Type: Application
    Filed: September 5, 2018
    Publication date: November 25, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Yasuhito ISHIDA, Kunihiro NISHIWAKI, Tatsushi KOBAYASHI, Tomotaka ASANO, Ken KUZUYA, Takayuki YAMAMOTO
  • MOTOR CONTROL DEVICE
    Publication number: 20210367541
    Abstract: A motor control device includes a current acquisition unit that acquires a limit current allowed to flow from a battery to a brushless motor, a voltage acquisition unit that acquires a power supply voltage applied from the battery to the brushless motor, and a command current determination unit that determines a d-axis command current and a q-axis command current. The command current determination unit determines the d-axis command current and the q-axis command current based on a power limit circle which is a current characteristic on a d-axis and a q-axis based on an inner product of a voltage vector and a current vector and a voltage limit circle which is a current characteristic on the d-axis and the q-axis based on the power supply voltage and an angular velocity of the brushless motor.
    Type: Application
    Filed: September 24, 2019
    Publication date: November 25, 2021
    Applicant: ADVICS CO., LTD.
    Inventor: Atsushi TAKAHASHI
  • Vehicle control system
    Patent number: 11180123
    Abstract: This vehicle control system is provided with an input monitoring unit and a determination time changing unit. When a state in which first target data is not input to a second control unit continues for a first determination time or longer, the input monitoring unit determines the first target data to be in a non-input state. When a state in which second target data is not input to the second control unit continues for a second determination time or longer, the input monitoring unit determines the second target data to be in a non-input state. When the first target data is determined to be in a non-input state, the determination time changing unit shortens the second determination time.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 23, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Yasuhito Ishida, Takayuki Yamamoto
  • ROAD SURFACE STEP DETERMINATION DEVICE FOR VEHICLES
    Publication number: 20210347344
    Abstract: A step determination device includes an operation amount sensor that detects an operation amount of a braking operation member, and a controller that determines a step by using the wheel speed and the operation amount. In the step determination device, the controller calculates an actual variable amount by using the wheel speed, calculates an estimated variable amount corresponding to the actual variable amount by using the operation amount, and executes the determination of the step by using the actual variable amount and the estimated variable amount. For example, the controller determines the presence of the step when the deviation between the actual variable amount and the estimated variable amount is not less than a predetermined value, and determines the absence of the step when the deviation is less than the predetermined value.
    Type: Application
    Filed: September 24, 2019
    Publication date: November 11, 2021
    Applicant: ADVICS CO., LTD.
    Inventors: Masato TERASAKA, Chisa KITAHARA
  • Vehicle driving assistance device
    Patent number: 11161499
    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.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: November 2, 2021
    Assignee: ADVICS CO., LTD.
    Inventor: Yosuke Hashimoto
  • Electromagnetic valve
    Patent number: 11156308
    Abstract: An electromagnetic valve comprises a valve body having a dividing wall which separates a first chamber and a second chamber and a through-hole formed in the dividing wall and in which a valving element is inserted, a guide member having a main body portion disposed between an outer peripheral surface of the valving element and an inner peripheral surface of the valving element and forming a gap with the inner peripheral surface of the through-hole, an insertion hole through which the valving element is inserted and which slides against the outer peripheral surface of the valving element, a flange portion provided on an one-end side of the main body portion and being in contact with the dividing wall and a tapered portion provided in the one-end side and disposed inside the first chamber. The flange portion is pushed toward the dividing wall by a pushing member.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 26, 2021
    Assignee: ADVICS CO., LTD.
    Inventors: Hidenori Hayakawa, Kazuyuki Kobayashi