Patents Assigned to Advics Co., Ltd.
  • Publication number: 20240132035
    Abstract: A vehicle which adopts a control device as a braking control device includes a sensor that acquires a rotation angle of a wheel. The control device includes a first distance calculation unit, a second distance calculation unit, and a braking control unit. The first distance calculation unit sets a braking force corresponding to a braking operation member operation amount as a reference braking force, estimates vehicle longitudinal acceleration based on the reference braking force, and calculates a braking force reference distance estimating a moving distance until the vehicle stops based on the longitudinal acceleration. The second distance calculation unit calculates a wheel reference distance estimating the vehicle moving distance based on a detection signal of the sensor and a wheel diameter. The braking control unit executes feedback control for controlling the vehicle braking force so that a difference between the braking force reference distance and the wheel reference distance decreases.
    Type: Application
    Filed: March 28, 2022
    Publication date: April 25, 2024
    Applicant: ADVICS CO., LTD.
    Inventor: Yusaku YAMAMOTO
  • Patent number: 11964643
    Abstract: A vehicle braking device provided with a hydraulic circuit having a first system, a second system, and a connection flow channel connecting both systems. The vehicle braking device includes a fluid supply unit supplying fluid to the first system, a first braking unit, for applying a braking force to a first wheel by using the fluid flowing in the first system, a second braking unit, for applying a braking force to a second wheel by using the fluid flowing in the second system, a determination unit for determining whether the fluid is leaking from the second system, and a control unit for executing specific control for controlling the fluid supply unit so that an amount of fluid supplied to the first system is increased in response to determination by the determination unit that the fluid is leaking from the second system.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: April 23, 2024
    Assignee: ADVICS CO., LTD.
    Inventor: Takayuki Yamamoto
  • Patent number: 11964656
    Abstract: A travel control device assists automatic traveling of a vehicle by controlling a target vehicle speed, which is a target value of an actual vehicle speed, when making the vehicle travel to a target point. The travel control device includes a setting unit for executing a setting process for setting the course of the target vehicle speed until the vehicle reaches the target point, based on the actual vehicle speed and the target point. If a request to change the vehicle speed occurs during execution of the automatic traveling and the actual vehicle speed is changed based on the request, the setting unit executes a resetting process for resetting the course of the target vehicle speed, based on the actual vehicle speed when the request is canceled and a remaining distance from a position of the vehicle when the request is canceled to the target point.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 23, 2024
    Assignee: ADVICS CO., LTD.
    Inventor: Takuya Yasui
  • Patent number: 11958384
    Abstract: The control device includes a vehicle required braking force acquisition unit that acquires a vehicle required braking force that is a required value of the braking force applied to the vehicle, and a roll control unit that controls the rolling motion of the vehicle by adjusting a distribution ratio of the braking force with respect to a target wheel including at least one of a rear wheel on an inside during turning and a front wheel on an outside during turning of the vehicle when the braking force is applied to the vehicle according to the vehicle required braking force under a situation where the vehicle is turning.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: April 16, 2024
    Assignee: ADVICS CO., LTD.
    Inventor: Yusaku Yamamoto
  • Publication number: 20240109523
    Abstract: A vehicle brake device includes a first electric motor, a first electrically powered cylinder device, a first electromagnetic valve, and a first pressure sensor serving as first elements, a second electric motor, a second electrically powered cylinder device, a second electromagnetic valve, and a second pressure sensor serving as second elements, and a circuit board in which a first sector in which a first circuit for controlling the first element is formed and a second sector in which a second circuit for controlling the second element is formed are arranged side by side. In the vehicle brake device, the first element controlled only by the first circuit is disposed so as to face the first sector, and the second element controlled only by the second circuit is disposed so as to face the second sector.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 4, 2024
    Applicant: ADVICS CO., LTD.
    Inventors: Tsuyoshi OTAKE, Atsushi TAKAHASHI
  • Publication number: 20240101084
    Abstract: A motion manager mounted on a vehicle includes a processor. The processor receives, from an application that has determined that another object will collide with the vehicle, a motion request indicating that an additional braking force is needed, when the vehicle is stopped. The processor generates an instruction value for causing a brake device to generate a greater braking force than before the motion request is received, when the motion request indicating that the additional braking force is needed is received.
    Type: Application
    Filed: August 22, 2023
    Publication date: March 28, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Yuta OHASHI, Kazuki MIYAKE, Yusuke SUETAKE, Atsushi KUCHINOMACHI
  • Publication number: 20240101086
    Abstract: A motion manager that is mounted on a vehicle includes a processor and a memory. The processor receives a motion request that corresponds to an application from individual applications. The processor arbitrates the received motion request. The processor generates, based on an arbitration result, an instruction value of an operation request to be output to a brake control unit. The memory stores, in advance, type information of an actuator to be controlled by the brake control unit. The processor generates the instruction value of the operation request using the type information.
    Type: Application
    Filed: August 11, 2023
    Publication date: March 28, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Yuta OHASHI, Kazuki MIYAKE, Atsushi KUCHINOMACHI
  • Patent number: 11942819
    Abstract: A control device includes an electric motor, a battery, a capacitor, a power source selection portion, a determination unit configured to determine whether the battery is normal, and a control unit configured to select, as a control mode of the electric motor, one of a first mode and a second mode in which a power consumption amount of the electric motor is reduced as compared to when the electric motor is driven in the first mode, and drive the electric motor in the selected control mode. When the battery is transitioned from a state of being determined to be normal to a state of being determined to be not normal, the control unit switches the control mode from the first mode to the second mode and then makes the power source selection portion select the capacitor.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: March 26, 2024
    Assignee: ADVICS CO., LTD.
    Inventors: Keisuke Yamamoto, Tomohisa Ozeki
  • Patent number: 11938917
    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: Grant
    Filed: March 28, 2019
    Date of Patent: March 26, 2024
    Assignee: ADVICS CO., LTD.
    Inventors: Tomotaka Asano, Takayuki Yamamoto, Yasuhito Ishida
  • Patent number: 11938916
    Abstract: A brake control device as an example of the present disclosure includes: an acquisition unit configured to acquire an output of a sensor that detects information indicating a ground contact state of a drive wheel of a vehicle; and a control unit configured to, when an acceleration operation for causing the vehicle to accelerate is performed on the vehicle stopped due to a parking brake force generated by an electric parking brake, identify the ground contact state of the drive wheel based on the output of the sensor acquired by the acquisition unit, and control the electric parking brake to release the parking brake force by a control method that differs depending on the identified ground contact state.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 26, 2024
    Assignee: ADVICS CO., LTD.
    Inventors: Masahiro Hirata, Terushige Uraoka, Hirotaka Takeya
  • Publication number: 20240092321
    Abstract: A control device is applied to a friction brake device of a vehicle. The friction brake device produces a friction brake force in the vehicle by starting driving of an electric motor. The control device includes a motor control unit configured to control the electric motor. The control device includes an acquisition unit configured to acquire an index value corresponding to a magnitude of a target value of the friction brake force. A value for determining a magnitude of the index value is set as a limit determination value. The motor control unit limits an increase speed of the number of rotations of the electric motor if the index value is equal to or less than the limit determination value, and releases the limit if the index value exceeds the limit determination value.
    Type: Application
    Filed: February 25, 2022
    Publication date: March 21, 2024
    Applicant: ADVICS CO., LTD.
    Inventors: Shunya WATANABE, Yoshio MASUDA
  • Patent number: 11932218
    Abstract: A vehicle brake system, including: a first-braking-force control mechanism configured to control a first braking force, a second-braking-force control mechanism configured to control a second braking force, an abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in an abnormal state, a pseudo-abnormal-state detecting device configured to detect whether the first-braking-force control mechanism is in a pseudo abnormal state in which the first-braking-force control mechanism is suspected to be in the abnormal state, and a controller including a pseudo abnormal state controller configured to control the second-braking-force control mechanism in an operating state of the first-braking-force control mechanism so as to control the second braking force when the pseudo-abnormal-state detecting device detects that the first-braking-force control mechanism is in the pseudo abnormal state.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: March 19, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Takahiro Okano, Yusuke Kamiya, Tatsushi Kobayashi, Shimpei Kodani
  • Patent number: 11919493
    Abstract: A brake control device to be applied to a vehicle having a hydraulic brake generating a hydraulic braking force, which is a braking force converted from a fluid pressure to a wheel of the vehicle, and an electric parking brake generating an electric braking force, which is a braking force different from the hydraulic braking force, on the wheel by a wheel brake mechanism driven by a motor. The brake control device includes an electric parking brake controller for determining a current target value, which is a target value of an electric current through the motor, by using a target braking force, and for controlling the electric parking brake by using the current target value. The electric parking brake controller is configured to estimate the fluid pressure in the hydraulic brake by using a current detection value, which is a detection value of an electric current through the motor.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 5, 2024
    Assignee: ADVICS CO., LTD.
    Inventor: Terushige Uraoka
  • Patent number: 11912256
    Abstract: To suppress a sharp variation in the posture of a vehicle in a control apparatus that is configured to control the posture of the vehicle by adjusting a distribution ratio of a braking force between the front and rear during braking of the vehicle. The control apparatus includes a distribution setting unit that is configured to change the braking force distribution ratio from a basic braking force ratio during braking of the vehicle so that a posture of the vehicle follows a posture indicated by the target posture value. If the target posture value is varied when the braking force distribution ratio is different from the basic braking force ratio, the distribution setting unit sets the amount of change, by which the braking force distribution ratio is changed per unit time, equal to or smaller than a restriction amount.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: February 27, 2024
    Assignee: ADVICS CO., LTD.
    Inventors: Sotaro Muramatsu, Yosuke Hashimoto
  • Patent number: 11897477
    Abstract: A control device installed in a vehicle comprising an electronic control unit configured to: accept a plurality of first requests from a driving assistance system; arbitrate the first requests; calculate a second request that is a physical amount that differs from the first requests based on a result of arbitration in which the first requests are arbitrated; and distribute the second request to at least one of a plurality of actuator systems, wherein the electronic control unit is configured to, when there is the first request requesting a driving force exceeding a first driving force necessary for recovery from a fuel cut state, perform arbitration such that an actual driving force generated by the vehicle is no greater than the first driving force, until reaching a driving force lower limit realizable by a powertrain actuator included in the actuator system at a current gear ratio.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: February 13, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Nobuyuki Itoh, Shogi Fukukawa
  • Publication number: 20240025388
    Abstract: A brake control device forming a brake device includes an acquisition unit acquiring an operation value which is a value relating to an operation of a brake pedal in each control cycle, a target derivation unit deriving a final target braking power BPTrF which is a target of a braking power at a point in time when a prescribed time passes from a start of the operation of the brake pedal based on an increase state of the operation value when the operation of the brake pedal is started, and a brake controller increasing a vehicle braking power BP toward the final target braking power BPTrF.
    Type: Application
    Filed: January 27, 2020
    Publication date: January 25, 2024
    Applicant: ADVICS CO., LTD.
    Inventor: Masaki MARUYAMA
  • Patent number: 11878690
    Abstract: A start control device, which is a control device, includes: a first adjustment processing unit configured to execute a first adjustment process of instructing at least one of a brake device and a drive device to increase a braking/driving force when the braking/driving force is negative and the vehicle is stopped; and a second adjustment processing unit configured to start a second adjustment process of instructing at least one of the brake device and the drive device to increase the braking/driving force at a speed lower than an increasing speed of the braking/driving force before end of the first adjustment process on condition that the braking/driving force has become greater than or equal to a determination braking/driving force by the increase in the braking/driving force accompanying the execution of the first adjustment process.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: January 23, 2024
    Assignee: ADVICS CO., LTD.
    Inventors: Hiroyuki Kato, Yosuke Hashimoto
  • Patent number: 11858490
    Abstract: A brake control device according to an embodiment executes, for an electric braking wheel of either the front wheel and the rear wheel, a brake hold control for driving an electric braking device to move a propulsion shaft toward the braked member to be braked and bring it into contact with a piston, calculating a target braking force for maintaining the stationary state of the vehicle, subtracting a first braking force from the target braking force to calculate a required hydraulic braking force applied to the non-electric braking wheel different from the electric braking wheel, and controlling a differential pressure control valve connected to the non-electric braking wheel of the hydraulic braking device so that the required hydraulic braking force is applied to the non-electric braking wheel.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: January 2, 2024
    Assignee: ADVICS CO., LTD.
    Inventor: Terushige Uraoka
  • Patent number: 11840206
    Abstract: A housing of brake device includes a first oil path, a second oil path that is adjacent to the first oil path in a first direction along an axial direction of the first oil path and has a larger cross-section orthogonal to the axial direction than the first oil path, a third oil path connected to the first oil path, and a fourth oil path connected to the second oil path. A throttle member of the brake device is anchored to the housing by being press-fitted into the first oil path. The third oil path connects the fourth oil path through the throttle. When the throttle member moves in the first direction by releasing the press-fitting, the third oil path connects the fourth oil path through a gap between an inner circumferential surface forming the second oil path and an outer circumferential surface of the throttle member.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 12, 2023
    Assignee: ADVICS CO., LTD.
    Inventor: Haruki Hirata
  • Publication number: 20230391307
    Abstract: A vehicle brake device includes a first electric motor and a second electric motor; a first electrically powered cylinder device and a second electrically powered cylinder device driven by the first electric motor and the second electric motor, respectively; and a circuit board on which a first circuit and a second circuit for controlling the first electric motor and the second electric motor, respectively, are formed. In the vehicle brake device, the first electrically powered cylinder device and the second electrically powered cylinder device are arranged side by side in the radial direction with the axis thereof being parallel to each other, and the circuit board is arranged perpendicular to the axis of the first electrically powered cylinder device and the second electrically powered cylinder device.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 7, 2023
    Applicant: ADVICS CO., LTD.
    Inventors: Tsuyoshi OTAKE, Atsushi TAKAHASHI