Patents by Inventor Daichi Kato

Daichi Kato 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: 20190353493
    Abstract: A passing gate determining device including: an information acquirer configured to acquire a status of vehicles in front of gates in a place in which a plurality of gates are aligned; and a gate selector configured to select a gate through which a vehicle is to pass among the plurality of gates on the basis of the status acquired by the information acquirer.
    Type: Application
    Filed: February 3, 2017
    Publication date: November 21, 2019
    Inventors: Kazuyuki Takahashi, Akihiko Otsu, Akira Mizutani, Atsushi Ishioka, Daichi Kato
  • Publication number: 20190344795
    Abstract: A vehicle control system includes: a gate selector configured to select a gate to be merged associated with a path to be merged after passage of the gate among a plurality of gates in accordance with a merging status between vehicles after passage of the gate; and a gate passage controller configured to control a subject vehicle such that the subject vehicle passes through the gate selected by the gate selector.
    Type: Application
    Filed: February 3, 2017
    Publication date: November 14, 2019
    Inventors: Atsushi Ishioka, Kazuyuki Takahashi, Akihiko Otsu, Akira Mizutani, Daichi Kato
  • Publication number: 20190315350
    Abstract: A vehicle control device includes a mid-term trajectory generation unit and a short-term trajectory generation unit, one of which generates a travel trajectory on which a vehicle can travel without interfering with an obstacle. The mid-term trajectory generation unit or the short-term trajectory generation unit: generates a travel route that passes through a second potential-travelling region which is obtained by subtracting obstacle regions, indicating obstacles, from a vehicle first potential-travelling region that is defined by the road environment; and generates the travel trajectory on the basis of the generated travel route.
    Type: Application
    Filed: September 1, 2017
    Publication date: October 17, 2019
    Inventors: Hiroshi OGURO, Daichi KATO
  • Publication number: 20190291748
    Abstract: In the present invention, a short-term route (provided at a timing for starting automatic driving) for automatic driving control that uses local environment map information generated constantly by a local environment map generation unit is generated continuously even when automatic driving is not set to an on state by an automatic driving switch. As a result, it is possible to instantly control the automatic driving of a vehicle by the continuously generated short-term route after transitioning to the on state of the automatic driving switch.
    Type: Application
    Filed: October 18, 2016
    Publication date: September 26, 2019
    Inventors: Kazuyuki TAKAHASHI, Daichi KATO, Hiroshi OGURO
  • Publication number: 20190260205
    Abstract: With conventional technology, since calculation of system stability is performed regarding all imaginable failure cases for the combinations of all objects to be controlled to determine an object to be controlled, there has been a problem of not being able to determine an object to be controlled in all the imaginable failure cases within a calculation period due to longer calculation time.
    Type: Application
    Filed: July 28, 2017
    Publication date: August 22, 2019
    Inventors: Daichi KATO, Nao SAITO, Masahiro YATSU
  • Patent number: 10389133
    Abstract: In order to maintain a system frequency within a permissible range under limitations of the output of a power source to be controlled, a calculation device pertaining to a load-frequency-controlling device of the present invention: predicts time-series data indicating the status of individual power sources in a future control period, the prediction being carried out on the basis of system model data, system data, and renewable energy data; calculates, on the basis of power source data, and for each of the power sources, at least any one of a deviation state indicating the degree to which the time-series data deviates from the limitations and/or a surplus state indicating the degree to which the time-series data shows a surplus with respect to the limitations; resolves the deviation state; and calculates the amount of adjustment in the output of each of the power sources, on the basis of the deviation state and the surplus state, under the condition that the total output of the power sources is maintained.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 20, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Daichi Kato, Eisuke Kuroda, Osamu Tomobe, Masahiro Yatsu
  • Publication number: 20190235509
    Abstract: In the present invention, an integrated control unit simultaneously causes a long-term route generation unit, an intermediate-term route neratio unit, and a short-term route generation unit to begin generating routes when an automatic driving mode is set to an on state by an automatic driving on setting unit, and a vehicle is instantly subjected to automatic driving control using a short-term route prior to the generation of a long-term route. As a result, the present invention provides a vehicle control device that can immediately perform automatic driving control based on a short-term route after the automatic driving mode of the vehicle is set o the on state and, after generating a long-term route in which riding comfort improves a stepwise manner, perform automatic driving control in which the long-term route and an intermediate-term route are taken into account.
    Type: Application
    Filed: October 18, 2016
    Publication date: August 1, 2019
    Inventors: Kazuyuki TAKAHASHI, Daichi KATO, Hiroshi OGURO
  • Publication number: 20190227552
    Abstract: A vehicle control device is provided with: a virtual waypoint arrangement unit that arranges, on a mapping space defined by a first axis extending in the length direction of a virtual lane and a second axis extending in the width direction, a candidate group of virtual waypoints along the first axis; and a mapping conversion unit that performs mapping conversion on at least a part of the candidate group by using mapping conversion information indicating a mapping relationship between a lane and the virtual lane so as to obtain a route point sequence which indicates the location of a travel trajectory on a real space.
    Type: Application
    Filed: September 28, 2016
    Publication date: July 25, 2019
    Inventor: Daichi KATO
  • Publication number: 20190143972
    Abstract: The invention provides a vehicle control system including a vehicle detector that detects a nearby vehicle with respect to an own-vehicle and an automated driving controller that automatically controls at least acceleration/deceleration of the own-vehicle such that the own-vehicle can travel along a route to a destination, wherein the automated driving controller acquires information indicating a position of a specific region in which the number of lanes decreases from map information and sets, if a relative relationship between the own-vehicle and a nearby vehicle detected by the vehicle detector satisfies a predetermined condition when the own-vehicle passes through the acquired specific region, a target speed of the own-vehicle to less than a speed of the nearby vehicle for which the relative relationship satisfies the predetermined condition.
    Type: Application
    Filed: March 15, 2016
    Publication date: May 16, 2019
    Inventors: Atsushi Ishioka, Masanori Takeda, Daichi Kato
  • Publication number: 20190084561
    Abstract: A vehicle control device includes a first trajectory generating part that performs processing at a first period and that generates a first trajectory which is a future target trajectory for a host vehicle, a second trajectory generating part that generates a second trajectory which can start the host vehicle earlier compared to the first trajectory in a case the host vehicle is accelerated from a state in which the host vehicle is stopped or traveling at a low speed on the basis of an external environment, and a traveling controller that controls traveling of the host vehicle on the basis of the second trajectory generated by the second trajectory generating part.
    Type: Application
    Filed: March 9, 2017
    Publication date: March 21, 2019
    Inventors: Masanori Takeda, Daichi Kato, Hiroshi Oguro
  • Publication number: 20190072971
    Abstract: A vehicle control device according to an embodiment includes a recognition unit recognizing surrounding vehicles of a subject vehicle and a potential setting unit setting a target object potential based on the surrounding vehicles recognized by the recognition unit for a plurality of separate areas acquired by dividing a road area and differently setting the target object potential in accordance with whether or not the subject vehicle or the surrounding vehicles are running in a predetermined running environment.
    Type: Application
    Filed: August 27, 2018
    Publication date: March 7, 2019
    Inventor: Daichi Kato
  • Publication number: 20190049974
    Abstract: A vehicle control apparatus includes a detecting unit that detects an surrounding object around a vehicle; a first setting unit that sets a first potential for multiple divided areas resulting from division of a road area based on the road area; a second setting unit that sets a second potential for the divided areas based on the detected surrounding object; an evaluating unit that calculates an index value by evaluating a potential of a target divided area based on the first potential and the second potential set for the target divided area in the multiple divided areas and foreseen information generated for surrounding divided areas selected from a periphery of the target divided area; and a selecting unit that selects one or more divided areas along a moving direction of the vehicle from the multiple divided areas based on the calculated index value.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 14, 2019
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Daichi Kato
  • Publication number: 20190016338
    Abstract: A vehicle control device includes: a recognition unit configured to recognize a position of a neighboring vehicle traveling around a host vehicle; a target position setting unit configured to set a target position for lane change to a lane of a lane change destination to which the host vehicle changes a lane; a lane changeability determining unit configured to determine that it is possible to change lane when one or both of a first condition in which the neighboring vehicle is not present in a forbidden area which is set on a lateral side of the host vehicle and on the lane of the lane change destination and a second condition in which a collision margin time between the host vehicle and the neighboring vehicle present before or after the target position is larger than a threshold are satisfied; and a control unit configured to cause the host vehicle to change lane to the lane of the lane change destination when the lane changeability determining unit determines that it is possible to change the lane.
    Type: Application
    Filed: February 8, 2017
    Publication date: January 17, 2019
    Inventors: Atsushi Ishioka, Toru Kokaki, Daichi Kato
  • Publication number: 20180262010
    Abstract: In order to maintain a system frequency within a permissible range under limitations of the output of a power source to be controlled, a calculation device pertaining to a load-frequency-controlling device of the present invention: predicts time-series data indicating the status of individual power sources in a future control period, the prediction being carried out on the basis of system model data, system data, and renewable energy data; calculates, on the basis of power source data, and for each of the power sources, at least any one of a deviation state indicating the degree to which the time-series data deviates from the limitations and/or a surplus state indicating the degree to which the time-series data shows a surplus with respect to the limitations; resolves the deviation state; and calculates the amount of adjustment in the output of each of the power sources, on the basis of the deviation state and the surplus state, under the condition that the total output of the power sources is maintained.
    Type: Application
    Filed: April 15, 2016
    Publication date: September 13, 2018
    Inventors: Daichi KATO, Eisuke KURODA, Osamu TOMOBE, Masahiro YATSU
  • Publication number: 20180222482
    Abstract: A vehicle control apparatus includes: a detection part that detects a behavior of another vehicle in a region on which it is supposed that a vehicle travels in order to pass through a gate; a determination part that determines whether or not a gate is an operating gate, based on the behavior of the other vehicle which is detected by the detection part; and a control part that performs a vehicle control so as to pass through a gate which is determined as an operating gate by the determination part.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 9, 2018
    Inventors: Daichi Kato, Atsushi Ishioka, Akihiko Otsu, Akira Mizutani, Kazuyuki Takahashi
  • Publication number: 20180152020
    Abstract: The objective is to provide a power system voltage reactive power monitoring control device with which a balance between the power system voltage and the reactive power can be maintained even when, for example, the output of renewable energy varies over time due to the weather, or the power supply configuration or system configuration changes, and a power system voltage reactive power monitoring control device with which the economic efficiency can be improved.
    Type: Application
    Filed: March 25, 2016
    Publication date: May 31, 2018
    Applicant: HITACHI, LTD.
    Inventors: Eisuke KURODA, Daichi KATO, Osamu TOMOBE, Haruki MIYOSHI, Shintaro UENO
  • Publication number: 20180148052
    Abstract: A drivable area setting device and a drivable area setting method, which can perform driving control based on a drivable area also in a road section in which a lane marker is not present. A terminal node specifying unit specifies a terminal node of a lane marker on an entry side and a terminal node of a lane marker on an exit side in a road section, such as an intersection, in which lane marker data are not present, a virtual lane marker generating unit for generating a virtual lane marker linking the terminal node of the lane marker on the entry side to the terminal node of the lane marker on the exit side, and an area setting unit for setting, as a drivable area of a vehicle, an area interposed between the generated virtual lane markers.
    Type: Application
    Filed: October 19, 2017
    Publication date: May 31, 2018
    Inventors: Shuichi Suto, Hitoshi Konishi, Daichi Kato, Chihiro Abe, Shion Tokunaga
  • Publication number: 20180149488
    Abstract: A guide route setting apparatus may include a lane-basis route setting unit configured to follow lane networks in a direction of a vehicle position from a starting point at an end of the lane networks and to set lane networks connecting from the end to a lane where the vehicle position presents a lane-basis guide route based on lane network data acquired by a lane network data acquisition unit along a preset road-basis guide route. A disadvantage that lane guidance is not made until just before a guide intersection is avoided by setting the road-basis guide route for a section from the end of the lane networks to the vehicle position, indicated by the lane network data acquired not only when the vehicle approaches the guide intersection but also along the road-basis guide route.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 31, 2018
    Applicants: ALPINE ELECTRONICS, INC., HONDA MOTOR CO, LTD.
    Inventors: Shuichi Suto, Hitoshi Konishi, Daichi Kato, Chihiro Abe, Shion Tokunaga
  • Patent number: 9964144
    Abstract: The present invention relates to a manufacturing method for a fluid dynamic bearing device, the method involving: forming an axial clearance 14 having a clearance width ? equal to a total amount of clearance widths of two thrust bearing clearances ?1, ?2 between a second bearing surface C of a bearing member 22 fixed to an outer periphery of a shaft member 21 and a sealing member 9; relatively moving the shaft member 21, the shaft member 22, and the sealing member 9 with respect to a housing 7 while the clearance width ? of the axial clearance 14 is maintained after forming the axial clearance 14; and fixing the sealing member 9 to the housing 7 at a time when a first thrust bearing surface B of the bearing member 22 comes into contact with a bottom surface 7b of the housing 7.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 8, 2018
    Assignee: NTN CORPORATION
    Inventors: Daichi Kato, Toshiaki Niwa
  • Publication number: 20180099667
    Abstract: A vehicle control device is installed in a host vehicle and is configured to be capable of performing automatic driving or providing a driving support. The vehicle control device includes a left/right boundary line generating unit that calculates left and right boundary lines of a travel path on which the host vehicle travels. Further, the vehicle control device includes an ideal travel route generating unit that sets constraint points through which the host vehicle passes within a range of the left and right boundary lines, and furthermore, calculates an ideal travel route in which a curvature with the constraint points serving as a constraint condition, a travel distance, and a difference from a center line are minimized.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 12, 2018
    Inventors: Chihiro Abe, Daichi Kato, Tadashi Sumioka, Kazuyuki Takahashi