Patents by Inventor Masaki Ninoyu

Masaki Ninoyu 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).

  • Patent number: 10870417
    Abstract: The vehicle braking device includes a pilot pressure control portion which executes normal control in which the pilot pressure is controlled in response to the target value of the servo pressure and shortening control in which the change amount of the pilot pressure per unit time is greater than the change amount under the normal control in a mutually different timing, a state judging portion which judges the state of the master piston relating hysteresis of sliding resistance of the master piston based on the detection result of the servo pressure detecting portion or the liquid pressure co-relating with the servo premeasure and a control switching over portion which terminates the shortening control based on the detection result of the servo pressure detecting portion and the detection result of the state judging portion.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 22, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Yusuke Kamiya
  • Patent number: 10800390
    Abstract: The hydraulic pressure generating device includes a regulator (spool valve) formed by a cylinder body, a spool which slidably moves within the cylinder body, a pilot chamber in which a pilot pressure which is a hydraulic pressure moving the spool along in an axial direction is inputted and an output chamber out of which an output pressure which is a hydraulic pressure corresponding to the pilot pressure is outputted, wherein the hydraulic pressure generating device further includes a spool position obtaining portion which obtains a relative position of the spool relative to the cylinder body and a pilot pressure controlling portion which controls the pilot pressure based on the relative position obtained by the spool position obtaining portion.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 13, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano, Yoshio Masuda
  • Patent number: 10703348
    Abstract: The hydraulic pressure control includes a valve portion which adjusts a fluid flowing into or flowing out of a hydraulic pressure chamber, a state judging portion which judges whether or not a state of the hydraulic pressure chamber is in a state in which the actual pressure is increasing even the holding signal has been inputted to the valve portion and a control portion which executes a specific control which keeps the actual pressure to the hydraulic pressure within the dead zone when the state judging portion judges that the state of the hydraulic pressure chamber is in a state that the actual pressure fluctuates even the holding signal has been inputted to the valve portion.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 7, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Okano, Daisuke Nakata, Masaki Ninoyu
  • Patent number: 10625721
    Abstract: The hydraulic pressure control device has an idle region, and is provided with a control portion, and a correcting portion which, in cases when the reaction time of the actual pressure to pressure increasing control or pressure decreasing control exceeds a predetermined threshold time, corrects a control current towards the side in which the flow-rate is increased. In cases when a judging portion has judged that the pressure increasing control is in the idle area, the correcting portion applies, as the threshold time, an idle threshold time set to a value different from the threshold time that in cases when the judging portion has not judged that the pressure increasing control is in the idle area. Furthermore, in cases when the reaction time of the actual pressure to the pressure increasing control exceeds the idle threshold time, the correcting portion corrects the control current.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: April 21, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano, Masaaki Komazawa
  • Patent number: 10625720
    Abstract: A vehicle braking device performs a following control which makes an actual value of a physical quantity follow a first target value when the actual value of the physical quantity is a value outside a dead zone and a suppression control which suppresses a change of the actual value when the actual value is a value within the dead zone in order to control the physical quantity associated with the braking force to be the first target value. The vehicle braking device comprises a setting portion which sets a second target value which follows the first target value and which is smaller than the first target value, when the first target value is increasing and a control portion which performs a control to make the actual value approximate the second target value.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 21, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Masuda, Masaki Ninoyu, Takahiro Okano
  • Patent number: 10583815
    Abstract: The hydraulic pressure control device controls a valve part for adjusting the inflow/outflow of a fluid into and out of a hydraulic pressure chamber formed in a braking device to control the actual hydraulic pressure of the fluid in the hydraulic pressure chamber, to a target hydraulic pressure of the actual hydraulic pressure and includes a determination unit which determines whether a response delay time of the actual hydraulic pressure is equal to or greater than a prescribed permitted delay time and an inflow/outflow quantity correction unit which executes increase correction processing in which the valve part is controlled to increase the inflow/outflow quantity of the fluid in the hydraulic pressure chamber when the determination unit has determined that the response delay time is equal to or greater than the permitted delay time.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 10, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano
  • Patent number: 10569754
    Abstract: A valve control device includes a correction unit that corrects hysteresis in output of a control valve according to an increasing/reducing direction of a control output value; a detection unit configured to detect an actual output value to the control valve corresponding to the control output value; and a forbidding unit configured to forbid correction by the correction unit, until a difference between the control output value and the actual output value becomes within a predetermined range, after the increasing/reducing direction of the control output value is switched.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 25, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano
  • Patent number: 10549735
    Abstract: A hydraulic pressure braking force generation device is provided with a first control unit for performing control for inhibiting excessive responses in which the input pressure is controlled such that the output pressure is within a first region set using a braking target oil pressure as a reference, a second control unit for performing control for responsiveness in which the increase speed or decrease speed of the input pressure is increased so as to be larger than that in the control for inhibiting excessive responses, to cancel response delay and a switching unit which, on the basis of the state of the braking target oil pressure, switches between the control for inhibiting excessive responses performed by the first control unit and the control for responsiveness performed by the second control unit.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 4, 2020
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano
  • Publication number: 20190299950
    Abstract: The vehicle braking device includes a pilot pressure control portion which executes normal control in which the pilot pressure is controlled in response to the target value of the servo pressure and shortening control in which the change amount of the pilot pressure per unit time is greater than the change amount under the normal control in a mutually different timing, a state judging portion which judges the state of the master piston relating hysteresis of sliding resistance of the master piston based on the detection result of the servo pressure detecting portion or the liquid pressure co-relating with the servo premeasure and a control switching over portion which terminates the shortening control based on the detection result of the servo pressure detecting portion and the detection result of the state judging portion.
    Type: Application
    Filed: March 12, 2019
    Publication date: October 3, 2019
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki NINOYU, Yusuke KAMIYA
  • Patent number: 10407036
    Abstract: A vehicle brake device includes a hydraulic pressure control portion which performs a feed-back control so that an actual hydraulic pressure of the brake fluid approximates an instruction target pressure and a target pressure setting portion which sets the instruction target pressure to a value closer to the actual hydraulic pressure side than an operating target pressure, when a pressure deviation between the operating target pressure which is a target value of the hydraulic pressure of the brake fluid corresponding to a brake operation and the actual hydraulic pressure is larger than a first pressure difference and at the same time when the actual hydraulic pressure is approaching to the operating target pressure.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 10, 2019
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Okano, Masaki Ninoyu
  • Publication number: 20190193695
    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.
    Type: Application
    Filed: May 22, 2017
    Publication date: June 27, 2019
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki NINOYU, Yusuke KAMIYA
  • Publication number: 20190077385
    Abstract: The hydraulic pressure control includes a valve portion which adjusts a fluid flowing into or flowing out of a hydraulic pressure chamber, a state judging portion which judges whether or not a state of the hydraulic pressure chamber is in a state in which the actual pressure is increasing even the holding signal has been inputted to the valve portion and a control portion which executes a specific control which keeps the actual pressure to the hydraulic pressure within the dead zone when the state judging portion judges that the state of the hydraulic pressure chamber is in a state that the actual pressure fluctuates even the holding signal has been inputted to the valve portion.
    Type: Application
    Filed: October 21, 2016
    Publication date: March 14, 2019
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro OKANO, Daisuke NAKATA, Masaki NINOYU
  • Publication number: 20190016317
    Abstract: A vehicle braking device performs a following control which makes an actual value of a physical quantity follow a first target value when the actual value of the physical quantity is a value outside a dead zone and a suppression control which suppresses a change of the actual value when the actual value is a value within the dead zone in order to control the physical quantity associated with the braking force to be the first target value. The vehicle braking device comprises a setting portion which sets a second target value which follows the first target value and which is smaller than the first target value, when the first target value is increasing and a control portion which performs a control to make the actual value approximate the second target value.
    Type: Application
    Filed: November 22, 2016
    Publication date: January 17, 2019
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio MASUDA, Masaki NINOYU, Takahiro OKANO
  • Patent number: 10173657
    Abstract: Provided is a braking device capable of suppressing an overshoot or undershoot in output pressure. This vehicle braking device is configured such that a pressure adjustment unit has a piston which is driven by the difference between force corresponding to pilot pressure and force corresponding to output pressure, and a control unit estimates, on the basis of a stroke-related value regarding the amount of movement of the piston, the amount of change of the output pressure that changes even after switching from pressure increase control or pressure reduction control to holding control of the output pressure, and controls a valve unit on the basis of the estimated amount of change of the output pressure.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: January 8, 2019
    Assignee: ADVICS CO., LTD.
    Inventors: Takahiro Okano, Masaki Ninoyu
  • Patent number: 10173658
    Abstract: In a vehicular brake device, while a brake operating member is not operated and a wheel cylinder pressure supplying control is executed to supply the target wheel cylinder pressure to the respective wheel cylinders individually, the vehicle control device sets the target servo pressure to a first predetermined target servo pressure which is a value smaller than a maximum output pressure of the servo pressure generating device. When the execution of the wheel cylinder pressure supplying control starts, the vehicle control device sets the target servo pressure to be the target wheel cylinder maximum value when a firstly occurred rising inclination of the target wheel cylinder maximum value is equal to or more than a minimum increment of an output of the servo pressure generating device per unit time and at the same time when the target wheel cylinder pressure is smaller than the first determined target servo pressure.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: January 8, 2019
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano, Yusuke Kamiya, Daisuke Nakata, Masaaki Komazawa
  • Publication number: 20180345925
    Abstract: The hydraulic pressure control device has an idle region, and is provided with a control portion, and a correcting portion which, in cases when the reaction time of the actual pressure to pressure increasing control or pressure decreasing control exceeds a predetermined threshold time, corrects a control current towards the side in which the flow-rate is increased. In cases when a judging portion has judged that the pressure increasing control is in the idle area, the correcting portion applies, as the threshold time, an idle threshold time set to a value different from the threshold time that in cases when the judging portion has not judged that the pressure increasing control is in the idle area. Furthermore, in cases when the reaction time of the actual pressure to the pressure increasing control exceeds the idle threshold time, the correcting portion corrects the control current.
    Type: Application
    Filed: November 24, 2016
    Publication date: December 6, 2018
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki NINOYU, Takahiro OKANO, Masaaki KOMAZAWA
  • Publication number: 20180345942
    Abstract: A valve control device includes a correction unit that corrects hysteresis in output of a control valve according to an increasing/reducing direction of a control output value; a detection unit configured to detect an actual output value to the control valve corresponding to the control output value; and a forbidding unit configured to forbid correction by the correction unit, until a difference between the control output value and the actual output value becomes within a predetermined range, after the increasing/reducing direction of the control output value is switched.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 6, 2018
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki NINOYU, Takahiro OKANO
  • Publication number: 20180339683
    Abstract: A hydraulic pressure braking force generation device is provided with a first control unit for performing control for inhibiting excessive responses in which the input pressure is controlled such that the output pressure is within a first region set using a braking target oil pressure as a reference, a second control unit for performing control for responsiveness in which the increase speed or decrease speed of the input pressure is increased so as to be larger than that in the control for inhibiting excessive responses, to cancel response delay and a switching unit which, on the basis of the state of the braking target oil pressure, switches between the control for inhibiting excessive responses performed by the first control unit and the control for responsiveness performed by the second control unit.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 29, 2018
    Applicant: Advics Co., Ltd.
    Inventor: Masaki NINOYU
  • Publication number: 20180304870
    Abstract: The hydraulic pressure control device controls a valve part for adjusting the inflow/outflow of a fluid into and out of a hydraulic pressure chamber formed in a braking device to control the actual hydraulic pressure of the fluid in the hydraulic pressure chamber, to a target hydraulic pressure of the actual hydraulic pressure and includes a determination unit which determines whether a response delay time of the actual hydraulic pressure is equal to or greater than a prescribed permitted delay time and an inflow/outflow quantity correction unit which executes increase correction processing in which the valve part is controlled to increase the inflow/outflow quantity of the fluid in the hydraulic pressure chamber when the determination unit has determined that the response delay time is equal to or greater than the permitted delay time.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 25, 2018
    Applicants: Advics Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaki NINOYU, Takahiro OKANO
  • Patent number: 10065619
    Abstract: A vehicle control device which is applicable to a vehicle brake device, controls the pressure increasing control valve and the pressure-decreasing control valve so that an actual servo pressure detected by the servo pressure sensor becomes a target servo pressure; and controls so as to increase the target servo pressure by a predetermined amount, while the brake actuator is executing the braking control which accompanies a brake fluid pumping back control wherein the brake fluid supplied to the wheel cylinder is pumped back to the master cylinder by the built-in pump.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: September 4, 2018
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Ninoyu, Takahiro Okano, Yusuke Kamiya, Daisuke Nakata, Masaaki Komazawa