Patents by Inventor Daisuke HOKUTO

Daisuke HOKUTO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240149846
    Abstract: A brake device for a vehicle includes: a brake pedal having a pedal part and a lever part that rotates about a rotation shaft when the pedal part is operated; a housing that rotatably supports the lever part; a reaction force generator connected to the housing and the lever part to generate a reaction force against the lever part according to a stroke amount of the brake pedal; and a stopper configured to stop the lever part by being in contact with the lever part such that the lever part is restricted from rotating in a direction opposite to a rotation direction when the pedal part is operated.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Daisuke HOKUTO, Etsugou YANAGIDA, Kunio NANBA
  • Patent number: 11919501
    Abstract: A brake device for a vehicle includes: a brake pedal having a pedal part and a lever part that rotates about a rotation shaft when the pedal part is operated; a housing that rotatably supports the lever part; a reaction force generator connected to the housing and the lever part to generate a reaction force against the lever part according to a stroke amount of the brake pedal; and a stopper configured to stop the lever part by being in contact with the lever part such that the lever part is restricted from rotating in a direction opposite to a rotation direction when the pedal part is operated.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 5, 2024
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Hokuto, Etsugou Yanagida, Kunio Nanba
  • Publication number: 20240069587
    Abstract: A pedal device includes: a pedal that is depressed by a driver; and a reaction force generation mechanism. The reaction force generation mechanism generates a reaction force against a depression force applied from the driver to the pedal. The reaction force generation mechanism includes at least one resilient member, a first holder and a second holder. The first holder contacts the at least one resilient member from one side where the pedal is placed in one direction. The second holder contacts the at least one resilient member from another side that is opposite to the one side. One holder among the first holder and the second holder includes an outer guide portion, and another holder among the first holder and the second holder includes an inner guide portion that is fitted into the outer guide portion and is movable relative to the outer guide portion in the one direction.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 29, 2024
    Inventors: Yasuhisa FUKUDA, Etsugo YANAGIDA, Daisuke HOKUTO, Masashi ARAO
  • Publication number: 20240061461
    Abstract: A pedal device to be pedaled by a user includes: a pedal supported to be swingable about an axis and to swing toward one side in a circumferential direction about the axis when being pedaled by the user; a housing; a reaction force generation portion disposed in the housing and to apply a force to the pedal toward another side in the circumferential direction; and a stopper. The stopper is arranged outside the housing, to swing about the axis together with the pedal while being supported by the pedal, and to stop the pedal by coming into contact with the housing in a non-pedaled state in which the pedal is not pedaled by the user.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Atsushi NISHIMURA, Etsugo YANAGIDA, Yuki MATSUNAGA, Daisuke HOKUTO
  • Publication number: 20240059261
    Abstract: A pedal pad in an organ-type pedal device swings about a predetermined axis when stepped on by a driver's foot. A sensor unit outputs a signal corresponding to a swing angle of the pedal pad. A reaction force generation mechanism has an elastic member that generates a reaction force against a driver's pedaling force applied to the pedal pad. A first housing covers the reaction force generation mechanism, and an opening at least on one side. A second housing is provided on one side of the first housing in a swing direction of the pedal pad. Further, the first housing has a largest opening on a second housing side, which is closed by the second housing and into which the elastic member of the reaction force generation mechanism in a non-bending state is insertable.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Masashi ARAO, Kengo ITO, Yasuhisa FUKUDA
  • Publication number: 20240059262
    Abstract: A pedal pad in an organ-type pedal device swings about a predetermined axis when stepped on by a driver's foot. A sensor unit outputs a signal corresponding to a swing angle of the pedal pad. A reaction force generation mechanism generates a reaction force against a driver's stepping force applied to the pedal pad. A first housing holds or covers at least one of a rotation shaft provided at the axis of the swinging of the pedal pad, the sensor unit, and the reaction force generation mechanism. A second housing is made of a rigid portion having a Young's modulus greater than that of the first housing or has the rigid portion at least in part. The second housing is configured to support a portion of the reaction force generation mechanism on one side opposite to the pedal pad by the rigid portion.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Masashi ARAO, Kengo ITO, Yasuhisa FUKUDA
  • Publication number: 20240059143
    Abstract: A vehicle pedal module includes a brake pedal device and an accelerator pedal device. The brake pedal device has a brake pedal first housing configured to rotatably support a brake pedal rotating shaft and to cover a brake-pedal reaction force generation mechanism, and a brake pedal second housing configured to support an end portion of the brake-pedal reaction force generation mechanism opposite to the brake pedal. The brake pedal second housing extends from the brake pedal device to the accelerator pedal device, to have at least a part of the accelerator pedal device fixed thereto, and to be installed on a vehicle body.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Kengo ITO, Daisuke HOKUTO, Etsugo YANAGIDA, Masashi ARAO, Yasuhisa FUKUDA
  • Publication number: 20240061462
    Abstract: A pedal device includes a shaft, a pedal, a housing, a reaction force generating mechanism, and a connecting rod. The connecting rod includes an arm portion and a push portion. The arm portion is connected to a back surface of the pedal. The push portion is connected to the arm portion. The push portion is configured to transmit force from the pedal to the reaction force generating mechanism by contacting the reaction force generating mechanism when the pedal is stepped on by an operator. Further, the connecting rod is connected to the back surface of the pedal, to rotate with the pedal about the axis of the shaft when the operator steps on the pedal, while an angle defined between the back surface of the pedal and an axis of the connecting rod is maintained.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 22, 2024
    Inventors: Yasuhisa FUKUDA, Etsugo YANAGIDA, Daisuke HOKUTO, Masashi ARAO
  • Publication number: 20240059260
    Abstract: A brake pedal device includes a pedal pad rotatable about an axis when stepped on by a driver, and a reaction force generation mechanism generating a reaction force to the pedal pad according to a stepping amount of the pedal pad. The pedal pad includes a pedal base portion extending away from an axis side end to another end, and a pedal operation portion attached to the pedal base portion and stepped on by the driver. The pedal operation portion protrudes toward a pedal return side in a rotation direction about the axis with respect to the pedal base portion, and a surface of the pedal operation portion has a plane portion that is configured as a flat surface and is stepped on by the driver, so that the reaction force generated by the reaction force generation mechanism acts on the pedal pad in a direction piercing the plane portion.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Inventors: Kengo ITO, Etsugo YANAGIDA, Masashi ARAO, Daisuke HOKUTO, Yasuhisa FUKUDA
  • Publication number: 20230406270
    Abstract: An organ-type pedal device includes a housing, a shaft, a pedal pad, and a sensor unit. The housing is attached to a vehicle body. The shaft is rotatably supported around a center of a shaft receiving portion provided in the housing as a rotation axis. The pedal pad is fixed to the shaft and rotates about a same rotation axis as the shaft. The pedal pad has a structure in which a portion to be stepped on by a driver is arranged above the rotation axis in a vertical direction when being mounted on the vehicle. The sensor unit has a rotating portion provided at the shaft and a signal output portion provided at the housing for outputting a signal corresponding to a phase of the rotating portion, and detects a rotation angle of the pedal pad and the shaft.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 21, 2023
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Yasuhisa FUKUDA
  • Publication number: 20230391298
    Abstract: An arm includes an arm one end and an arm body extended from the arm one end. The arm is coupled with a pedal pad at the arm one end and is coupled with a reaction force generation mechanism on an counter-operation side. A stopper part is a component separate from the pedal pad and fixed to the pedal pad. One part, which is one of the pedal pad and the stopper part, includes a first arrangement section, and the other part, which is the other of the pedal pad and the stopper part, includes a second arrangement section. The first arrangement section and the second arrangement section interpose the arm one end therebetween and hold the arm one end against the pedal pad.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Inventors: Yasuhisa FUKUDA, Etsugo YANAGIDA, Daisuke HOKUTO, Takao YAMAMOTO
  • Publication number: 20230393606
    Abstract: A pedal device mounted on a vehicle includes a housing, a pedal pad, and a reaction force generation mechanism. The housing is mounted on a vehicle body. The pedal pad is provided to be rotatable with respect to the housing. The reaction force generation mechanism is configured to include a plurality of resilient members each having a predetermined leaf spring. The reaction force generation mechanism is arranged in a space on the side opposite to a surface stepped on by a driver in the pedal pad to generate a reaction force against a pedaling force applied to the pedal pad by the driver.
    Type: Application
    Filed: August 18, 2023
    Publication date: December 7, 2023
    Inventors: Yasuhisa FUKUDA, Etsugo YANAGIDA, Daisuke HOKUTO, Takao YAMAMOTO
  • Publication number: 20230391299
    Abstract: A brake system includes a brake device, a brake circuit that generates a braking force for braking a vehicle, ECU that controls the braking force generated by the brake circuit according to a stroke amount of the brake pedal, and a user interface. When the first mode is selected, the ECU executes normal control for controlling the braking force generated by the brake circuit based on a basic characteristics which is a basic relationship between the stroke amount of the brake pedal and the braking force. When the second mode is selected, the ECU executes an automatic braking force control when the stroke amount is between a first threshold value and the second threshold value after the stroke amount of the brake pedal increases and reaches a predetermined set value. The ECU executes normal control when the stroke amount of the brake pedal becomes larger than the second threshold value.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Inventors: Shinji KOMATSU, Etsugo YANAGIDA, Daisuke HOKUTO
  • Publication number: 20230393605
    Abstract: A pedal pad includes a plate portion having a plate shape extending in a pedal extending direction and having a thickness in a plate thickness direction, and the pedal pad is rotatably movable about a pedal shaft center that is perpendicular to the pedal extending direction by a step-on operation of a driver to the plate portion from one side in the plate thickness direction. The plate portion has one end portion in the pedal extending direction positioned lower in the vehicle than an another end portion in the pedal extending direction in a non-stepping state in which the driver is not performing the step-on operation on the pedal pad. Furthermore, the one end portion of the plate shape of the plate portion extends in the pedal extending direction, more than a position of the pedal shaft.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Kengo ITO
  • Publication number: 20230393607
    Abstract: An organ-type pedal device includes a housing attached to a vehicle body. A pedal pad of the pedal device is provided rotatably about a predetermined rotation axis with respect to the housing, and a stepped portion of the pedal pad is arranged above the rotation axis in a vertical direction of the vehicle. The pedal pad rotates in a forward direction in accordance with an increase of a pedaling force of the driver, and rotates in a backward direction in accordance with a decrease of the pedaling force of the driver. A sensor unit outputs an electric signal corresponding to a rotation angle of the pedal pad. A full-close stopper comes in contact with a lower part of the pedal pad with respect to the rotation axis, and prevents the pedal pad from rotating in the backward direction when the pedaling force of the driver is not applied thereto.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 7, 2023
    Inventors: Takao YAMAMOTO, Daisuke HOKUTO, Etsugo YANAGIDA, Yasuhisa FUKUDA
  • Publication number: 20230211659
    Abstract: An accelerator device includes a pedal lever, a reaction force adjuster and a controller. The pedal lever operates according to a stepping operation. The reaction force adjuster is driven by an actuator, and is capable of adjusting a reaction force that is a force in a direction of pushing back the pedal lever. The controller includes a target operation amount setting unit and a drive control unit. The target operation amount setting unit sets a target operation amount, which is an operation amount of the pedal lever according to a vehicle speed. The drive control unit controls a drive of the actuator. The controller controls the reaction force according to the target operation amount so that the operation amount of the pedal lever is within a target range when switching from an automatic drive to a manual drive.
    Type: Application
    Filed: March 10, 2023
    Publication date: July 6, 2023
    Inventors: Tetsuo HARIU, Takuto KITA, Yuusuke YOSHIDA, Kiyoshi KIMURA, Takehiro SAITO, Soichi KINOUCHI, Etsugo YANAGIDA, Daisuke HOKUTO
  • Publication number: 20230202297
    Abstract: A pedal device comprises a brake pedal, an accelerator pedal, a support member and an adjusting device. The brake pedal is operated to be depressed by a leg of a passenger, and an operation amount of a depressing operation of the brake pedal is transmitted as an electrical signal. The accelerator pedal is operated to be depressed by a leg of the passenger, and an operation amount of a depressing operation of the accelerator pedal is transmitted as an electrical signal. The support member is connected with the brake pedal and the accelerator pedal, respectively, to support the brake pedal and the accelerator pedal in a rotatable manner. The adjusting device adjusts a position or a posture of the pedal unit including the brake pedal, the accelerator pedal, and the support member.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Inventors: Soichi Kinouchi, Takuto Kita, Kiyoshi Kimura, Tetsuo Hariu, Yuusuke Yoshida, Etsugo Yanagida, Daisuke Hokuto, Takehiro Saito
  • Publication number: 20230202444
    Abstract: A brake pedal is operated by a pedal force of a driver. A sensor is capable of detecting a stroke amount of the brake pedal. A brake circuit generates braking force to apply a brake to a vehicle by applying hydraulic pressure to wheel cylinders provided to respective wheels. An electronic control device controls the braking force generated by the brake circuit based on an output signal from the sensor and a state of the vehicle. The electronic control device executes predetermined braking force control under which the braking force generated by the brake circuit is set to be predetermined braking force, when the stroke amount of the brake pedal is between a first threshold and a second threshold larger than the first threshold.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Soichi KINOUCHI, Tetsuo HARIU, Takuto KITA, Yuusuke YOSHIDA
  • Publication number: 20230195157
    Abstract: A brake device for a brake-by-wire system includes a brake pedal, a sensor, a reaction force generator, and a reaction force changing mechanism. The brake pedal is rotatably mounted on a housing and not mechanically connected to a hydraulic pressure generator. The sensor outputs a signal corresponding to a stroke amount of the brake pedal to an electronic control unit. The reaction force generator has one end connected to the brake pedal and the other end connected to the housing so as to generate a reaction force against a depression force applied to the brake pedal by a driver. The reaction force changing mechanism generates a reaction force against a depression force applied to the brake pedal by the driver, and is able to change a magnitude of the reaction force in advance according to the driver.
    Type: Application
    Filed: February 23, 2023
    Publication date: June 22, 2023
    Inventors: Daisuke HOKUTO, Etsugo YANAGIDA, Takuto KITA, Yuusuke YOSHIDA, Soichi KINOUCHI, Tetsuo HARIU
  • Publication number: 20220348172
    Abstract: A brake device includes: a brake pedal including a pedal and a lever that rotates about a rotation axis when the pedal is operated; a housing that rotatably supports the lever; a reaction force generator that generates a reaction force to the lever in accordance with a stroke amount of the brake pedal by receiving a force from the lever when the brake pedal is operated; a deformation member including a deformation portion that is deformed by a force received from the lever when the brake pedal is operated in a state where the reaction force generated by the reaction force generator is generated; and a stroke sensor that outputs a signal corresponding to the stroke amount and outputs a value indicating that operation of the brake pedal is abnormal and instructing execution of control for stopping a vehicle when the deformation portion is deformed.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: Etsugou YANAGIDA, Kunio NANBA, Daisuke HOKUTO