Patents by Inventor Hiroaki Niino

Hiroaki Niino 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: 9683584
    Abstract: The brake device for a vehicle generates two master pressures by controlling one single servo pressure to accurately control braking force. The pressure increasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon increasing the servo pressure and the second pressure increasing characteristic obtained from the servo pressure and the second master pressure. The pressure decreasing characteristic is set based on the first pressure increasing characteristic obtained from the relationship between the servo pressure and the first master pressure upon decreasing the servo pressure and the second pressure decreasing characteristic obtained from the servo pressure and the second master pressure. Thus, the total braking force of the brake device is the sum of a braking force generated by the first master pressure and a braking force generated by the second master piston.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 20, 2017
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Masuda, Hiroaki Niino, Akira Sakai, Yasuji Mizutani, Kiyoyuki Uchida, Masaaki Komazawa, Kazutaka Noro, Yusuke Kamiya
  • Patent number: 9663086
    Abstract: The vehicular brake device according to the present invention is provided with a first flow passage connecting a first electromagnetic valve and a wheel cylinder, a second flow passage connecting a reservoir portion capable of storing brake fluid and the first flow passage and a second electromagnetic valve disposed in the second flow passage. A pressure differential generating portion generates a predetermined pressure differential by moving a master piston by a drive pressure generating portion after an execution of an advancement control to advance the master piston so that the stroke position of the master piston is within an advanced side area. A second electromagnetic valve control portion places the second electromagnetic valve in an open state for a period including at least a portion of the period of time in an execution period of the advancement control.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 30, 2017
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshimitsu Ozeki, Hiroaki Niino, Takahiro Okano, Masaaki Komazawa, Kiyoyuki Uchida
  • Publication number: 20170036674
    Abstract: A recognition support system includes: an object detection device detecting an object that is located in a periphery of a host vehicle; a direction sensing device sensing a direction to which a driver intends to turn the host vehicle; a range setting device setting a notification range based on the direction sensed by the direction sensing device; a selecting device defining the object, which is detected by the object detecting device, as a specified object when the object moves independently from the host vehicle, and selecting the specified object, which is located within the notification range, to be presented to the driver based on a state of the specified object; and an information presenting device presenting an information enabling the driver to recognize the specified object selected by the selecting device.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 9, 2017
    Inventors: Hideshi Izuhara, Hiroaki Niino, Yousuke Hattori, Masayoshi Ooishi, Hiroki Tomabechi
  • Patent number: 9545904
    Abstract: The braking control device for a vehicle is adapted to be used for a vehicle brake device and it is an object of the present invention to prevent an operator of the vehicle from feeling of any an unpleasant feeling by reducing an ineffective operating amount by which no braking force increases in response to the increase of the brake operating amount. The braking control device includes a controlling portion for changing a servo performance to an ineffective operating amount reducing servo performance which is closer to the increase ratio of the hydraulic pressure braking force relative to the increase of the brake operating amount after the input piston has been in contact with the output piston when the brake operating amount reaches to the servo performance change operating amount which is smaller than the assisting limit operating amount.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: January 17, 2017
    Assignee: ADVICS CO., LTD.
    Inventors: Yoshio Masuda, Hiroaki Niino
  • Patent number: 9499147
    Abstract: The vehicle brake system includes a cylinder, an output piston disposed in the cylinder, an input piston disposed in the cylinder but separating from the output piston and defining a separation chamber therebetween, a brake pedal connected to the input piston, a reaction force generating device for generating an elastic reaction force, a separation lock valve for controlling the communication between the separation chamber and the reaction force generating device, a fade state judging portion to judge whether the friction brake device is in a fade state or not and a friction braking force control portion for changing the mode to the fade state when the fade state judging portion judged that the friction brake device is in the fade state, wherein a desired friction braking force can be assured even under the brake fade state.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 22, 2016
    Assignee: ADVICS CO., LTD.
    Inventors: Yosuke Yamasoe, Hiroaki Niino, Yoshio Masuda, Takashi Kurokawa, Kiyoyuki Uchida, Masaaki Komazawa, Akira Sakai, Yasuji Mizutani, Yusuke Kamiya
  • Patent number: 9487191
    Abstract: The brake control device applied to a hydraulic pressure braking force generating device having a driving hydraulic pressure generating device and a pilot hydraulic pressure generating device. The brake control device includes a judging portion which judges whether or not an operating amount of a brake operating member is equal to or less than a predetermined value and a pilot hydraulic pressure control portion which controls the pilot hydraulic pressure generating device to generate a preparatory hydraulic pressure in the pilot hydraulic pressure chamber which is larger than an atmospheric pressure set to a value so that a hydraulic pressure in the wheel cylinder is kept substantially to an atmospheric pressure level when the judging portion judges that the operating amount of the brake operating member is equal to or less than the predetermined value to suppress occurrence of brake dragging during non-braking operation with keeping the braking force responsiveness.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: November 8, 2016
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Masuda, Hiroaki Niino, Kiyoyuki Uchida, Yusuke Kamiya, Masaaki Komazawa
  • Publication number: 20160304089
    Abstract: An evacuation travel assist apparatus includes a stop lane determination section that determines a stop lane and an evacuation place in the stop lane in which an own vehicle should be urgently stopped when the vehicle drive is detected to be in a state of being not able to drive the own vehicle properly, and a transverse position determination section that determines, as a stop transverse position, a position in a transverse direction of the evacuation place in the stop lane so as to ensure a space for the vehicle driver and passengers to get in and out of the own vehicle safely at a side of the own vehicle.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 20, 2016
    Inventors: Takeshi Miura, Masao Oooka, Hiroaki Niino
  • Patent number: 9346442
    Abstract: When a brake switch is switched from OFF to ON, current is applied to a brake ECU, and a command to switch a master cylinder from a second state to a first state is issued after a lapse of preparation time, so that switching-time change suppression control is performed. A reservoir shutoff valve is closed, and duty control is performed on a communication control valve. The duty ratio is set to 1 when a switching-time control duration expires, and the communication control valve is placed in an open position, to establish the first state. Thus, since the communication control valve is duty-controlled during switching from the second state to the first state, change in the hydraulic pressure of an input chamber is suppressed, and change of the operating feeling is suppressed.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: May 24, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Yusuke Kamiya, Akira Sakai, Kiyoyuki Uchida, Masaki Maruyama, Yoshio Masuda, Hiroaki Niino, Takashi Kurokawa
  • Patent number: 9333960
    Abstract: The vehicle braking control device adapted to a vehicle brake device having an electromagnetic valve which controls the brake fluid flow between the master cylinder and the wheel cylinders in response to the input electric energy. The vehicle braking control device includes a valve opening electric energy obtaining portion which obtains an input electric energy upon opening of the electromagnetic valve as a valve opening electric energy and an operation characteristic setting portion which sets an operation characteristic based on the valve opening electric energy obtained corresponding to the predetermined pressure differential. The opening valve electric energy obtaining portion changes the input electric energy at a valve closing side or a valve opening side with a change amount per unit of time larger than before valve opening in response to an obtaining of the valve opening electric energy.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 10, 2016
    Assignees: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke Kuki, Yoshio Masuda, Hiroaki Niino, Kiyoyuki Uchida, Masaaki Komazawa, Akira Sakai, Yasuji Mizutani, Yusuke Kamiya
  • Publication number: 20160121866
    Abstract: The vehicular brake device according to the present invention is provided with a first flow passage connecting a first electromagnetic valve and a wheel cylinder, a second flow passage connecting a reservoir portion capable of storing brake fluid and the first flow passage and a second electromagnetic valve disposed in the second flow passage. A pressure differential generating portion generates a predetermined pressure differential by moving a master piston by a drive pressure generating portion after an execution of an advancement control to advance the master piston so that the stroke position of the master piston is within an advanced side area. A second electromagnetic valve control portion places the second electromagnetic valve in an open state for a period including at least a portion of the period of time in an execution period of the advancement control.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 5, 2016
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshimitsu OZEKI, Hiroaki NIINO, Takahiro OKANO, Masaaki KOMAZAWA, Kiyoyuki UCHIDA
  • Publication number: 20160109881
    Abstract: In a driving assist system, a driving assist device as a control device acquires driving control information to be used for performing a driving control process in which an own vehicle follows a preceding vehicle running on the same lane of the own vehicle in front of the own vehicle. The driving assist device performs the driving control process of the own vehicle based on the acquired driving control information. The driving assist device detects an interruption of a preceding-vehicle following of the own vehicle. In the preceding-vehicle following, the own vehicle follows the preceding vehicle running on the same lane. The driving assist device decelerates a vehicle speed of the own vehicle by using a predetermined braking force when detecting the interruption of the preceding-vehicle following of the own vehicle during the preceding-vehicle following.
    Type: Application
    Filed: October 12, 2015
    Publication date: April 21, 2016
    Inventors: Hiroaki Niino, Masayoshi Ooishi, Hiroshi Ishikawa
  • Patent number: 9227613
    Abstract: Vehicle brake device comprises a master cylinder including a master chamber connected to a wheel cylinder, a drive pressure chamber in which a drive pressure is generated for driving a master piston and a fluid pressure chamber in which a fluid pressure is generated in response to a stroke position of the master piston and an operating characteristics setting device for setting operating characteristics of an electromagnetic valve. The operating characteristics include a relationship of the pressure differential in the fluid conduit between the master cylinder side and the wheel cylinder side with respect to the electromagnetic valve based on the supply amount of the electric power detected by the supplied electric power detecting device.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 5, 2016
    Assignee: ADVICS CO., LTD.
    Inventors: Yosuke Kuki, Yoshimitsu Ozeki, Hiroaki Niino
  • Publication number: 20150375746
    Abstract: A control apparatus for a vehicle includes processing circuitry. The processing circuitry calculates a target torque such that the greater the amount of brake operation is, the smaller the target torque becomes. The processing circuitry controls the drive motor such that the creep torque is smaller when brake operation is being performed by the driver than when the brake operation is not being performed by the driver. The control circuitry controls the brake device such that, when the brake operation is being performed by the driver, the brake torque approaches a target brake torque. The processing circuitry sets a decrease gradient of the creep torque to be smaller than a decrease gradient of the target torque when the brake operation amount is increased under a condition in which the creep torque is being output by the drive motor.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 31, 2015
    Applicants: DENSO CORPORATION, ADVICS CO., LTD.
    Inventors: Masayuki NAITO, Tomokazu KATO, Kousuke BABA, Hiroaki NIINO, Masayoshi OOISHI
  • Publication number: 20150360654
    Abstract: The brake control device applied to a hydraulic pressure braking force generating device having a driving hydraulic pressure generating device and a pilot hydraulic pressure generating device. The brake control device includes a judging portion which judges whether or not an operating amount of a brake operating member is equal to or less than a predetermined value and a pilot hydraulic pressure control portion which controls the pilot hydraulic pressure generating device to generate a preparatory hydraulic pressure in the pilot hydraulic pressure chamber which is larger than an atmospheric pressure set to a value so that a hydraulic pressure in the wheel cylinder is kept substantially to an atmospheric pressure level when the judging portion judges that the operating amount of the brake operating member is equal to or less than the predetermined value to suppress occurrence of brake dragging during non-braking operation with keeping the braking force responsiveness.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 17, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Yoshio MASUDA, Hiroaki NIINO, Kiyoyuki UCHIDA, Yusuke KAMIYA, Masaaki KOMAZAWA
  • Publication number: 20150353087
    Abstract: A vehicle control apparatus is mounted to an own vehicle and controls the own vehicle such that an inter-vehicle distance between a preceding vehicle and the own vehicle becomes a reference distance. The vehicle control apparatus acquires passing suitability information indicating whether or not the own vehicle is able to pass the preceding vehicle. When the own vehicle is not able to pass the preceding vehicle, the vehicle control apparatus corrects the inter-vehicle distance by adding a correction distance to a reference distance.
    Type: Application
    Filed: June 2, 2015
    Publication date: December 10, 2015
    Inventors: HIROAKI NIINO, SHOTARO FUKUDA, TAKAHIRO NARITA, MASAO OOOKA
  • Publication number: 20150345961
    Abstract: In an evacuation travelling assistance apparatus, a risk determining unit determines, when a driver is not in a state capable of appropriately performing driving operations, a risk involved in stopping at a location and a risk involved in passing through the location, for each of a plurality of locations that may serve as an advancing destination of the own vehicle, based on map information, own vehicle information, and peripheral environment information. An evacuation destination setting unit sets a location at which the risk involved in stopping at the location is lower than a predetermined reference as an evacuation destination, based on the determined risk. An evacuation route setting unit combines locations at which the risk involved in passing through the location is lower than a predetermined reference, based on the determined risk, and sets an evacuation route from the current position of the own vehicle to the evacuation destination.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Inventors: MASAO OOOKA, TAKESHI MIURA, HIROAKI NIINO, HIROSHI MIZUNO
  • Publication number: 20150344034
    Abstract: In an apparatus, a first obtainer obtains a first travelling-condition parameter of a target vehicle. The first travelling-condition parameter shows one or more conditions under which the target vehicle is travelling on the road. A second obtainer obtains a second travelling-condition parameter of a preceding vehicle travelling on the road immediately ahead of the target vehicle. The second travelling-condition parameter shows one or more conditions under which the preceding vehicle is travelling on the road. A deviation calculator calculates a deviation between the first and second travelling-condition parameters. A behavior determiner determines a recommended behavior of the target vehicle in response to the calculated deviation. A controller controls a device, which is associated with a behavior of the target vehicle, according to the recommended behavior.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 3, 2015
    Inventors: HIROAKI NIINO, MASAO OOOKA, SHOTARO FUKUDA, TAKAHIRO NARITA
  • Publication number: 20150345964
    Abstract: In an evacuation travelling assistance apparatus, a risk determining unit determines, when a driver is not in a state capable of appropriately performing driving operations, a risk involved in stopping at a location and a risk involved in passing through the location, for each of a plurality of locations that may serve as an advancing destination of the own vehicle, based on map information, own vehicle information, and peripheral environment information. The risk determining unit evaluates, for each of the plurality of locations, at least one evaluation subject among a plurality of evaluation subject including: a risk occurrence frequency at the location; a risk avoidability at the location; and a level of danger of the risk occurring at the location, based on a plurality of levels, and determines the risk involved in stopping at each location and the risk involved in passing through each location, based on evaluation results.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 3, 2015
    Inventors: MASAO OOOKA, TAKESHI MIURA, HIROAKI NIINO, HIROSHI MIZUNO
  • Publication number: 20150344033
    Abstract: In a driver assisting apparatus, a predicting unit predicts, based on information including at least a current location and a behavior of each of a preceding vehicle and a target vehicle, an overtaking course from the current location of the target vehicle to a future location of the target vehicle when assuming that the target vehicle will safely overtake the preceding vehicle. The target and preceding vehicles are running on a road. A determining unit determines whether there are one or more physical impediments for an overtaking of the preceding vehicle through the predicted overtaking course based on at least traffic information associated with at least a portion in the road in front of the current location of the target vehicle. An adjusting unit adjusts assistance for the driver of the target vehicle for the overtaking of the at least one preceding vehicle according to a result of the determination.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 3, 2015
    Inventors: SHOTARO FUKUDA, HIROAKI NIINO, MASAO OOOKA, TAKAHIRO NARITA
  • Publication number: 20150237311
    Abstract: In an apparatus, a first unit obtains a picked-up image in a travelling direction of a vehicle, and a second unit determines whether or not a driver of the vehicle is about to perform in parking of the vehicle or is performing parking of the vehicle. A third unit estimates, based on the obtained picked-up image, a target parking area of the vehicle when it is deter mined that the driver of the vehicle is about to perfoim parking of the vehicle or is perfoi ming parking of the vehicle. A fourth unit sets, based a position of the estimated target parking area relative to the vehicle, a display mode for the obtained picked-up image. A fifth unit generates, based on the picked-up image and the display mode for the picked-up image, an image to be displayed on the display device.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 20, 2015
    Inventors: YOSUKE HATTORI, MASAYOSHI OOISHI, HIROAKI NIINO, HIDESHI IZUHARA, HIROKI TOMABECHI