Patents by Inventor Hajime Oyama

Hajime Oyama 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: 10996671
    Abstract: A driving assist apparatus includes a driving mode setting calculator and a steering wheel holding detector. The driving mode setting calculator is configured to control a transition between driving modes including a manual driving mode, a first driving assist mode, and a second driving assist mode, in accordance with a driving condition. The steering wheel holding detector is configured to detect whether the driver holds the steering wheel or releases the steering wheel. The driving mode setting calculator causes the driving modes to make the transition from the first driving assist mode to the second driving assist mode, on a condition that the first driving assist mode is set as the driving modes and the steering wheel holding detector detects that the driver releases, from a state in which the driver holds the steering wheel, the steering wheel.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 4, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Motoki Zaizen, Hajime Oyama, Ryosuke Namba, Masato Mizoguchi
  • Publication number: 20210108717
    Abstract: A gear shift operation device for a vehicle to which a multiple-stage automatic transmission is mounted, is provided. By a control lever being manually operated in a range switchable mode, a range position is switched at least between a D-range where automatic transmission is performed and an R-range, and by the control lever being manually operated in a manual transmission mode, a gear change is performed. An operation reaction force when the control lever is manually operated is set larger when the gear change is performed in the manual transmission mode than when the range position is switched in the range switchable mode.
    Type: Application
    Filed: September 23, 2020
    Publication date: April 15, 2021
    Inventors: Hajime Oyama, Kenji Sasaki, Junichi Kubo, Hideyuki Nishi, Kenta Kubo, Yasuhiko Shinya, Takashi Hasegawa, Shigeo Yoshikawa
  • Publication number: 20210086789
    Abstract: An automatic driving system allows a vehicle to travel by automatic driving. The system includes first and second detectors and first and second determiners. The first detector is disposed on a movable part of the vehicle and detects an object located around the vehicle. The second detector is disposed on the vehicle and has an object detection region that partially overlaps a detection region of the first detector. The first determiner determines whether a detection state of the first detector based on a position of the object detected by the second detector and behavior of the object estimated from a detection position of the first detector and a traveling state of the vehicle. The automatic driving availability determiner determines availability of the automatic driving according to the detection state of the first detector and disables the automatic driving when the first detector is not in a regular detection state.
    Type: Application
    Filed: August 7, 2020
    Publication date: March 25, 2021
    Inventor: Hajime OYAMA
  • Publication number: 20210078604
    Abstract: A automatic driving control apparatus for a vehicle can selectively switch a driving mode between a manual driving mode in which a driver manually performs driving operation of the own vehicle and an automatic driving mode in which driving operation is performed automatically along a set target traveling route. The automatic driving control apparatus includes a driving skill evaluation unit and a driving mode switching unit. The driving skill evaluation unit is configured to monitor the driving operation by the driver during traveling in the manual driving mode and evaluate a driving skill of the driver. The driving mode switching unit is configured to control the driving mode so as to be switchable to the automatic driving mode on condition that at least an evaluation value of the driver by the driving skill evaluation unit exceeds a threshold set in advance.
    Type: Application
    Filed: July 20, 2020
    Publication date: March 18, 2021
    Inventors: Ryosuke NAMBA, Hajime OYAMA, Masato MIZOGUCHI, Keisuke KUWAHARA
  • Publication number: 20210078605
    Abstract: An automatic driving control apparatus for a vehicle can selectively switch between a manual driving mode in which a driver manually performs driving operation of the vehicle and an automatic driving mode in which driving operation is performed automatically along a target traveling route. The apparatus includes a driver identifier that identifies the driver, a driving experience value evaluation unit that evaluates a driving experience value based on a traveling history in the manual driving mode of the identified driver, a shift permission time setting unit that sets a shift permission time from the manual driving mode to the automatic driving mode based on the driving experience value, and a driving mode switching unit that controls the driving mode so as to be switchable to the automatic driving mode on condition that at least a driving time by the driver in the manual driving mode exceeds the shift permission time.
    Type: Application
    Filed: July 20, 2020
    Publication date: March 18, 2021
    Inventors: Ryosuke NAMBA, Hajime OYAMA, Masato MIZOGUCHI, Keisuke KUWAHARA
  • Patent number: 10946856
    Abstract: Provided is a vehicle drive system capable of suppressing a feeling of acceleration drop and free running, thereby improving vehicle riding comfort. The vehicle drive system includes: an internal combustion engine for driving a primary drive wheel; a stepped variable transmission; an assist motor for driving a secondary drive wheel; and a motor control device for controlling the assist motor, wherein the stepped variable transmission is a seamless-shift transmission configured such that a drive force to be transmitted therethrough is interrupted during shifting down, but not substantially interrupted during shifting up, and the motor control device is operable, during the shifting down by the stepped variable transmission, to cause the assist motor to generate a drive force to compensate for the interruption of the drive force.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 16, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Hajime Oyama, Shigeo Yoshikawa, Hiroyuki Shirata, Hideki Sanai
  • Publication number: 20210039673
    Abstract: A traveling control system includes a first acquisition unit, a second acquisition unit, a path plan setter and a controller. The first a acquisition unit communicates with a cloud environment including an edge environment to acquire cloud information including traveling information of other vehicles from at least the edge environment. The second acquisition unit recognizes a traveling environment of an own vehicle and acquires own vehicle traveling information including the recognized traveling environment and a vehicle control state of the own vehicle. The path plan setter sets a path plan in automatic driving control to cause the own vehicle to travel automatically. The determines a need for changing the path plan and the automatic driving control based on the cloud information and controls traveling behavior of the own vehicle according to the need for a change based on the cloud information and the own vehicle traveling information.
    Type: Application
    Filed: June 2, 2020
    Publication date: February 11, 2021
    Inventor: Hajime OYAMA
  • Publication number: 20210031804
    Abstract: A vehicle traveling control apparatus is configured to: acquire peripheral environment information around a vehicle; store road map information; estimate a vehicle position; acquire information of a road surface on which the vehicle travels; set a target travel path of the vehicle during automatic driving, referring to the road map information, based on the estimated vehicle position and input destination information; estimate lateral position information of a peripheral vehicle when the road surface is snow-covered and lane markers cannot be recognized; determine whether the peripheral vehicle deviates relative to the traveling lane based on the estimated lateral position information; and, when the peripheral vehicle deviates, set a deviation amount to deviate the vehicle toward a lane marker on a road shoulder side, correct a lateral position of the set target travel path set with the deviation amount, and set a new target travel path.
    Type: Application
    Filed: June 2, 2020
    Publication date: February 4, 2021
    Inventor: Hajime OYAMA
  • Patent number: 10891854
    Abstract: A traffic management system includes a traffic information collector, a traffic information acquirer, and a traffic manager. The traffic information collector collects the number of vehicles passing through a predetermined section, the traffic information acquirer acquires, as traffic information, the number of vehicles and vehicle information of vehicles passing through a vehicle sensor provided behind the predetermined section, and the traffic manager determines a traffic density based on the number of vehicles and a section length, calculates a traffic volume from the number of vehicles passing by the vehicle sensor, corrects the traffic density with the traffic volume to determine an actual traffic density, compare the actual traffic density to a determination threshold value for determining a congestion indication to check a congestion indication, and transmit a lane changing instruction signal to the vehicle traveling behind the vehicle sensor when the congestion indication is detected.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: January 12, 2021
    Assignee: SUBARU CORPORATION
    Inventor: Hajime Oyama
  • Patent number: 10793141
    Abstract: A vehicle traveling control apparatus includes a calculator, a first controller, a second controller, a switcher, and a third controller. The calculator is configured to calculate a target steering angle, on a basis of a shape of a target course. The first controller is configured to perform a first steering control. The second controller is configured to perform a second steering control. The switcher is configured to switch, on a basis of the shape of the target course, between the first steering control and the second steering control. The third controller is configured to calculate, on a basis of a feedback control amount, a yaw moment to be added to an own vehicle, and control, on a basis of the calculated yaw moment, a distribution of braking/driving force to be distributed to wheels of the own vehicle. The feedback control amount causes the own vehicle to travel while allowing a displacement amount of the own vehicle relative to the target course to be reduced.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: October 6, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Hajime Oyama
  • Publication number: 20200310427
    Abstract: An intersection start judgment device judges whether to start an own vehicle at an intersection at which vehicles in all directions need to temporarily stop. The device includes an autonomous sensor, a driving environment recognizer, a locator, and a controller. The autonomous sensor is disposed on the own vehicle and configured to detect a driving environment in front of the own vehicle. The driving environment recognizer is configured to recognize, with the autonomous sensor, the driving environment of the own vehicle. The locator is configured to calculate a location of the own vehicle with map information and a global navigation satellite system; and a controller configured to give, in a case where the own vehicle stopped temporarily at the intersection, start permission to the own vehicle when the number, counted by the driving environment recognizer, of other vehicles that are already stopping at the intersection becomes zero by subtraction counting.
    Type: Application
    Filed: February 11, 2020
    Publication date: October 1, 2020
    Inventor: Hajime OYAMA
  • Publication number: 20200307641
    Abstract: An automatic driving system includes a driver monitor, a driver state determining unit, a first automatic driving controller, and a second automatic driving controller. The first automatic driving controller controls a first automatic driving mode for causing a vehicle to travel by automatic driving under a preset first traveling environment regardless of whether a driver is in a forward monitoring state. The second automatic driving controller controls a second automatic driving mode for causing the vehicle to travel by the automatic driving in a situation where the driver state determining unit determines, based on a driver state detected by the driver monitor, that the driver is in the forward monitoring state, and the vehicle is under a second traveling environment which is more complicated than the first traveling environment.
    Type: Application
    Filed: January 16, 2020
    Publication date: October 1, 2020
    Inventor: Hajime OYAMA
  • Publication number: 20200310452
    Abstract: A vehicle traveling control apparatus includes a first traveling environment recognition unit using an onboard sensor, a second traveling environment recognition unit using external information, a visibility distance calculating unit, a first deceleration control unit, a second deceleration control unit, and a start timing changing unit.
    Type: Application
    Filed: January 16, 2020
    Publication date: October 1, 2020
    Inventor: Hajime OYAMA
  • Publication number: 20200312129
    Abstract: A traffic management system includes a traffic information collector, a traffic information acquirer, and a traffic manager. The traffic information collector collects the number of vehicles passing through a predetermined section, the traffic information acquirer acquires, as traffic information, the number of vehicles and vehicle information of vehicles passing through a vehicle sensor provided behind the predetermined section, and the traffic manager determines a traffic density based on the number of vehicles and a section length, calculates a traffic volume from the number of vehicles passing by the vehicle sensor, corrects the traffic density with the traffic volume to determine an actual traffic density, compare the actual traffic density to a determination threshold value for determining a congestion indication to check a congestion indication, and transmit a lane changing instruction signal to the vehicle traveling behind the vehicle sensor when the congestion indication is detected.
    Type: Application
    Filed: January 16, 2020
    Publication date: October 1, 2020
    Inventor: Hajime OYAMA
  • Publication number: 20200302789
    Abstract: A traffic control system includes a vehicle control system that transmits traveling information during traveling of a vehicle, and a management and control system that collects the traveling information from vehicle control systems of other vehicles and transmit recommended traveling information based on the collected traveling information. The vehicle control system transmits traveling data containing a traveling trajectory of the vehicle as the traveling information, and determines a third traveling route on which the vehicle travels, based on a first traveling route based on the recommended traveling information and a second traveling route based on a recognition result of a traveling environment of the vehicle. The management and control system collects the traveling data of vehicles traveling on a same travel lane and extract highly reliable data, and calculates the recommended traveling information based on the extracted traveling data and transmits the calculated recommended traveling information.
    Type: Application
    Filed: January 2, 2020
    Publication date: September 24, 2020
    Inventor: Hajime OYAMA
  • Publication number: 20200302793
    Abstract: A traffic control system includes a vehicle control system and a management and control system. The vehicle control system transmits, from a probe information transmitter, traveling information of a specific section in which an own vehicle has traveled deviating from a target route or target speed of the own vehicle, as probe information. The management and control system collects the probe information of a plurality of vehicles and extracts highly reliable information by a probe information collector, and calculates and transmits recommended traveling information for passing through the specific section by a recommended traveling information calculator. The vehicle control system performs traveling control for passing through the specific section based on the recommended traveling information for the specific section received from the management and control system and recognition information of a traveling environment for the specific section in a specific section traveling controller.
    Type: Application
    Filed: January 2, 2020
    Publication date: September 24, 2020
    Inventor: Hajime OYAMA
  • Patent number: 10747222
    Abstract: A traveling control system includes a traveling controller, an operation detector, and an alarm controller. The traveling controller is configured to perform traveling control of a vehicle by selectively executing one mode of: a manual driving mode performing any of steering, acceleration, and deceleration of the vehicle in accordance with operation performed by a driver of the vehicle; the first driving assist mode performing automatic traveling control while requiring the driver to hold the steering wheel; and the second driving assist mode performing the automatic traveling control without requiring the driver to hold the steering wheel. The automatic traveling control includes control of any of the steering, the acceleration, and the deceleration of the vehicle. The operation detector is configured to detect the operation performed by the driver. The alarm controller is configured to control a notification unit of the vehicle, to output any of visual and auditory information.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: August 18, 2020
    Assignee: SUBARU CORPORATION
    Inventors: Hajime Oyama, Ryosuke Namba, Masato Mizoguchi, Motoki Zaizen
  • Patent number: 10640116
    Abstract: A traveling control system for vehicle includes a map database, a detector, a traffic signal searching unit, and a speed adjusting unit. The map database is configured to store map data including information regarding one or more traffic signals on a road. The detector is configured to detect a signal state of any, of the one or more traffic signals, ahead of the own vehicle. The traffic signal searching unit is configured to search, from the map database, for a nearest traffic signal ahead of and nearest to the own vehicle. The speed adjusting unit is configured to perform, when the signal state of the nearest traffic signal is undetectable, adjustment of a passing speed at which the own vehicle passes around the nearest traffic signal, to perform a passing speed decreasing operation including decreasing of the passing speed of the own vehicle, stopping of the own vehicle, or both.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: May 5, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Hajime Oyama
  • Publication number: 20200114901
    Abstract: Provided is a vehicle drive system capable of suppressing a feeling of acceleration drop and free running, thereby improving vehicle riding comfort. The vehicle drive system includes: an internal combustion engine for driving a primary drive wheel; a stepped variable transmission; an assist motor for driving a secondary drive wheel; and a motor control device for controlling the assist motor, wherein the stepped variable transmission is a seamless-shift transmission configured such that a drive force to be transmitted therethrough is interrupted during shifting down, but not substantially interrupted during shifting up, and the motor control device is operable, during the shifting down by the stepped variable transmission, to cause the assist motor to generate a drive force to compensate for the interruption of the drive force.
    Type: Application
    Filed: September 23, 2019
    Publication date: April 16, 2020
    Inventors: Hajime Oyama, Shigeo Yoshikawa, Hiroyuki Shirata, Hideki Sanai
  • Patent number: 10604139
    Abstract: A drive assist apparatus, for vehicle, includes a position detector, a storage, a display, an operation unit, and a controller. The position detector acquires own vehicle position information on the basis of a position signal received from positioning satellites. The storage stores road map information. The display displays a symbol representing the own vehicle at a position indicated by the own vehicle position information acquired by the position detector, and displays the road map information around the own vehicle information acquired by the position detector. The operation unit receives a relative moving operation. The relative moving operation allows the symbol representing the own vehicle and the road map information both displayed on the display to move relative to each other in a vehicle width direction. The controller corrects the own vehicle position information in accordance with the relative moving operation received by the operation unit.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 31, 2020
    Assignee: SUBARU CORPORATION
    Inventor: Hajime Oyama