Patents by Inventor Naohiko Obata

Naohiko Obata 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: 11353866
    Abstract: The present invention has an object of determining feasibility of lowering a driving automation level of an automated driving vehicle, based on a driving load considering a relationship with surrounding vehicles. An automatic-driving-level lowering feasibility determination apparatus according to the present invention includes: a surrounding vehicle information obtainment unit obtaining surrounding vehicle information; a driving load calculator calculating, based on the surrounding vehicle information, a driving load value indicating a magnitude of a driving load on the subject vehicle; a driving-automation-level lowering feasibility determination unit determining feasibility of lowering a driving automation level of the subject vehicle, based on the driving load value; and an output controller outputting, to an automated driving control device, a result of the feasibility determined by the driving-automation-level lowering feasibility determination unit.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 7, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiko Obata, Mitsuo Shimotani, Tadashi Miyahara, Yoshitaka Nakamura
  • Patent number: 11173926
    Abstract: An operation authority management apparatus manages switching between automatic operation and manual operation of a plurality of actuators (a steering actuator, an accelerator actuator, and a brake actuator) of a subject vehicle. In the operation authority management apparatus, a subject vehicle behavior prediction unit predicts a behavior of the subject vehicle. A determination unit determines, for each individual actuator, whether or not to permit switching of the actuator during the automatic operation to the manual operation on the basis of the behavior of the subject vehicle predicted by the subject vehicle behavior prediction unit. A notification unit notifies a driver of the subject vehicle of a determination result made by the determination unit.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: November 16, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi Miyahara, Mitsuo Shimotani, Naohiko Obata, Yoshitaka Nakamura
  • Patent number: 11175662
    Abstract: It is an object of the present invention to correct a travel plan of a vehicle so as to cause a self-vehicle to move to a relative position with lower travel risk. A travel plan correction device in accordance with the present invention includes a risk calculation section setting unit for setting a risk calculation section, a risk calculation unit for calculating a travel risk value, on the basis of a relative position between a target area and a surrounding vehicle and travel control information of the surrounding vehicle, a risk reduction section extraction unit for extracting a section whose travel risk value is lower than that at a traveling spot, out of the risk calculation section, as a risk reduction section, and a travel plan correction unit for correcting the travel plan so as to cause the self-vehicle to move to the risk reduction section.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: November 16, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kimihiko Izaki, Mitsuo Shimotani, Yoshitaka Nakamura, Yoshinori Ueno, Tadashi Miyahara, Naohiko Obata
  • Patent number: 11084501
    Abstract: An automatic driving control plan creator creates a plan of an automatic driving section where a subject vehicle is automatically driven, and a plan of a driving switching preparation section for switching the subject vehicle from automatic driving to manual driving. A driving load calculator predicts, for each point of the driving switching preparation section, a driving load applied to a driver when the driver manually drives the subject vehicle. A driving switching permission determiner extracts, from the driving switching preparation section, a switching-inhibited section that is a section where switching from automatic driving to manual driving is not permitted, on the basis of the predicted driving load at each point. A driving switching preparation section compensator changes a start point of the driving switching preparation section so as to lengthen the driving switching preparation section in accordance with the length of the switching-inhibited section.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: August 10, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshinori Ueno, Mitsuo Shimotani, Yoshitaka Nakamura, Naohiko Obata, Tadashi Miyahara, Tomohiro Shiino
  • Patent number: 11040722
    Abstract: The present invention has an object to provide a technology of determining whether a driver is prepared for transfer of driving authorization, and then determining whether transfer of driving authorization is acceptable or unacceptable. The present invention is intended for a driving authorization transfer determination device. The device includes a task request part that makes an output device inside the vehicle output a request for a task involving continuous speech or body movement for a predetermined period of time, a task acquisition part that acquires an accomplishment result of the task from an input device inside the vehicle, a transfer determination part that determines whether the transfer is acceptable or unacceptable based on the accomplishment result of the task, and a determination result output part that outputs a determination result of the transfer determination part to the automated driving controller.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: June 22, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi Miyahara, Mitsuo Shimotani, Yoshitaka Nakamura, Naohiko Obata
  • Publication number: 20210163013
    Abstract: In a peripheral-information determining apparatus, a peripheral-information acquiring unit acquires peripheral information indicating circumstances around a subject vehicle, from a peripheral-information detector that detects the circumstances around the subject vehicle. An intention estimating unit estimates, from person movement information, an intention of a person around the subject vehicle or an instruction of an indicator around the subject vehicle. The person movement information is included in the peripheral information, and is a piece of information that indicates a movement of the person, or a movement of the indicator that imitates a person's movement. A controller controls a travel controller or an outward-notification apparatus on the basis of the peripheral information and an estimated result that is obtained from the intention estimating unit. The travel controller controls the traveling of the subject vehicle.
    Type: Application
    Filed: October 25, 2016
    Publication date: June 3, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshinori UENO, Naohiko OBATA, Mitsuo SHIMOTANI, Yoshitaka NAKAMURA, Tadashi MIYAHARA
  • Patent number: 11009873
    Abstract: An automatic driving control plan creation unit creates a plan of an automatic driving section in which a subject vehicle is automatically driven, and a plan of a driving switching preparation section for switching the subject vehicle from automatic driving to manual driving. For each point in the driving switching preparation section, a driving load calculation unit calculates a driving load applied to a driver when the driver manually drives the subject vehicle. A driving switching permission determination unit permits switching of the subject vehicle from automatic driving to manual driving at a point where the driving load is smaller than a predetermined threshold value, and does not permit switching of the subject vehicle from automatic driving to manual driving at a point where the driving load is equal to or larger than the threshold value. A permission standard relaxation unit makes the driving load difficult to exceed the threshold value.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 18, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshinori Ueno, Mitsuo Shimotani, Yoshitaka Nakamura, Naohiko Obata, Tadashi Miyahara, Tomohiro Shiino
  • Patent number: 10967879
    Abstract: An object of the present invention is to implement, at a low hardware cost, a device that changes an autonomous driving control parameter whose step size is variably set. An autonomous driving control parameter changing device according to the present invention includes, a gesture operation acquisition unit that acquires information on a gesture operation for moving the operation target icon, a parameter changing unit that changes the autonomous driving control parameter in an increase or decrease direction defined in association with a movement direction in which the operation target icon is moved, and a step size setting unit that variably sets a step size based on a predetermined condition, the step size corresponding to an amount of change in the autonomous driving control parameter made by the parameter changing unit per occurrence of the gesture operation, and the change operation screen includes a display of the step size.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: April 6, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mitsuo Shimotani, Yoshitaka Nakamura, Tadashi Miyahara, Naohiko Obata, Tsutomu Matsubara
  • Patent number: 10933745
    Abstract: A display control apparatus controls a display used in a vehicle which can travel with automatic driving. The display control apparatus includes an information acquirer and a controller. The information acquirer acquires information of a travel control plan generated by an automatic driving control device of the vehicle. The controller acquires a future position which is a position of the vehicle after an elapse of a predetermined time from a current position of the vehicle from a future movement of the vehicle planned by the travel control plan, and controls the display so that a user is visually provided with the future position of the vehicle by overlapping a vehicle object which is a display object imitating a vehicle shape with a landscape relating to the future position which is acquired.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 2, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mitsuo Shimotani, Yoshitaka Nakamura, Tadashi Miyahara, Naohiko Obata
  • Patent number: 10885788
    Abstract: An object of the present invention to provide a notification control apparatus and a method for controlling notification that achieve display to a notification target with improved accuracy. A notification control apparatus in the present invention includes the following: an attribute detecting unit that detects an attribute of an object located around a subject vehicle; an input recognizing unit that recognizes an input message entered by the driver of the subject vehicle; a message converting unit that converts, in accordance with the attribute detected by the attribute detecting unit, the input message recognized by the input recognizing unit into a notification message indicating the same meaning as the input message; and a road projection controller that controls projection of the notification message converted by the message converting unit onto at least part of a road located around the object.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 5, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi Miyahara, Mitsuo Shimotani, Naohiko Obata, Yoshinori Ueno, Yuji Matsuda
  • Publication number: 20200377126
    Abstract: A plurality of sections in a planned travel route include a first basic section for a first automatic driving level, a second basic section for a second automatic driving level lower than the first automatic driving level, and a change preparation section and a main section in the first basic section. An information output control device controls an information output system so as to perform information output in accordance with an output structure allowed in a current section, among a plurality of types of output structures each determined by a combination of output information, an output format, and an output destination device. Allowed output structures for the change preparation section include part of not-allowed output structures for the main section and also include at least part of allowed output structures for the second basic section.
    Type: Application
    Filed: October 3, 2016
    Publication date: December 3, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Naohiko OBATA, Yoshitaka NAKAMURA, Tadashi MIYAHARA, Mitsuo SHIMOTANI, Yoshinori UENO, Hisanori YAMADA
  • Publication number: 20200231181
    Abstract: An operation authority management apparatus manages switching between automatic operation and manual operation of a plurality of actuators (a steering actuator, an accelerator actuator, and a brake actuator) of a subject vehicle. In the operation authority management apparatus, a subject vehicle behavior prediction unit predicts a behavior of the subject vehicle. A determination unit determines, for each individual actuator, whether or not to permit switching of the actuator during the automatic operation to the manual operation on the basis of the behavior of the subject vehicle predicted by the subject vehicle behavior prediction unit. A notification unit notifies a driver of the subject vehicle of a determination result made by the determination unit.
    Type: Application
    Filed: August 5, 2016
    Publication date: July 23, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi MIYAHARA, Mitsuo SHIMOTANI, Naohiko OBATA, Yoshitaka NAKAMURA
  • Publication number: 20200159366
    Abstract: The present invention has an object to provide a technology of accurately identifying a device that a driver desires to operate out of on-board devices, and supporting operation of the device. An operation support device of the present invention includes a line of sight direction acquisition unit, a characteristic behavior acquisition unit, a device identification unit, and a display controller. The device identification unit is configured to identify at least one on-board device out of a plurality of on-board devices mounted in the vehicle as an operation target device that the driver desires to operate, based on a line of sight direction and a characteristic behavior. The display controller is configured to cause a display device mounted in the vehicle to display an operation screen of the operation target device.
    Type: Application
    Filed: July 21, 2017
    Publication date: May 21, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji MATSUDA, Naohiko OBATA, Mitsuo SHIMOTANI, Tadashi MIYAHARA
  • Publication number: 20200062173
    Abstract: An object of the present invention to provide a notification control apparatus and a method for controlling notification that achieve display to a notification target with improved accuracy. A notification control apparatus in the present invention includes the following: a notification message acquiring unit that acquires a notification message for a notification target located around a subject vehicle; a gesture operation recognizing unit that recognizes a gesture of the driver of the subject vehicle; a road projection location determining unit that determines, on the basis of the gesture recognized by the gesture operation recognizing unit, a location for projecting the notification message acquired by the notification message acquiring unit onto a road; and a road projection controller that controls projection of the notification message onto the location determined by the road projection location determining unit.
    Type: Application
    Filed: April 24, 2017
    Publication date: February 27, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadashi MIYAHARA, Mitsuo SHIMOTANI, Naohiko OBATA, Yoshinori UENO, Yuji MATSUDA
  • Publication number: 20200058222
    Abstract: An object of the present invention to provide a notification control apparatus and a method for controlling notification that achieve display to a notification target with improved accuracy. A notification control apparatus in the present invention includes the following: an attribute detecting unit that detects an attribute of an object located around a subject vehicle; an input recognizing unit that recognizes an input message entered by the driver of the subject vehicle; a message converting unit that converts, in accordance with the attribute detected by the attribute detecting unit, the input message recognized by the input recognizing unit into a notification message indicating the same meaning as the input message; and a road projection controller that controls projection of the notification message converted by the message converting unit onto at least part of a road located around the object.
    Type: Application
    Filed: April 24, 2017
    Publication date: February 20, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi MIYAHARA, Mitsuo SHIMOTANI, Naohiko OBATA, Yoshinori UENO, Yuji MATSUDA
  • Publication number: 20200017118
    Abstract: The present invention has an object to provide a technology of determining whether a driver is prepared for transfer of driving authorization, and then determining whether transfer of driving authorization is acceptable or unacceptable. The present invention is intended for a driving authorization transfer determination device. The device includes a task request part that makes an output device inside the vehicle output a request for a task involving continuous speech or body movement for a predetermined period of time, a task acquisition part that acquires an accomplishment result of the task from an input device inside the vehicle, a transfer determination part that determines whether the transfer is acceptable or unacceptable based on the accomplishment result of the task, and a determination result output part that outputs a determination result of the transfer determination part to the automated driving controller.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 16, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi MIYAHARA, Mitsuo SHIMOTANI, Yoshitaka NAKAMURA, Naohiko OBATA
  • Publication number: 20190361442
    Abstract: It is an object of the present invention to correct a travel plan of a vehicle so as to cause a self-vehicle to move to a relative position with lower travel risk. A travel plan correction device in accordance with the present invention includes a risk calculation section setting unit for setting a risk calculation section, a risk calculation unit for calculating a travel risk value, on the basis of a relative position between a target area and a surrounding vehicle and travel control information of the surrounding vehicle, a risk reduction section extraction unit for extracting a section whose travel risk value is lower than that at a traveling spot, out of the risk calculation section, as a risk reduction section, and a travel plan correction unit for correcting the travel plan so as to cause the self-vehicle to move to the risk reduction section.
    Type: Application
    Filed: February 20, 2017
    Publication date: November 28, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kimihiko IZAKI, Mitsuo SHIMOTANI, Yoshitaka NAKAMURA, Yoshinori UENO, Tadashi MIYAHARA, Naohiko OBATA
  • Publication number: 20190324451
    Abstract: The present invention has an object of determining feasibility of lowering a driving automation level of an automated driving vehicle, based on a driving load considering a relationship with surrounding vehicles. An automatic-driving-level lowering feasibility determination apparatus according to the present invention includes: a surrounding vehicle information obtainment unit obtaining surrounding vehicle information; a driving load calculator calculating, based on the surrounding vehicle information, a driving load value indicating a magnitude of a driving load on the subject vehicle; a driving-automation-level lowering feasibility determination unit determining feasibility of lowering a driving automation level of the subject vehicle, based on the driving load value; and an output controller outputting, to an automated driving control device, a result of the feasibility determined by the driving-automation-level lowering feasibility determination unit.
    Type: Application
    Filed: September 1, 2016
    Publication date: October 24, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiko OBATA, Mitsuo SHIMOTANI, Tadashi MIYAHARA, Yoshitaka NAKAMURA
  • Publication number: 20190294163
    Abstract: An automatic driving control plan creation unit creates a plan of an automatic driving section in which a subject vehicle is automatically driven, and a plan of a driving switching preparation section for switching the subject vehicle from automatic driving to manual driving. For each point in the driving switching preparation section, a driving load calculation unit calculates a driving load applied to a driver when the driver manually drives the subject vehicle. A driving switching permission determination unit permits switching of the subject vehicle from automatic driving to manual driving at a point where the driving load is smaller than a predetermined threshold value, and does not permit switching of the subject vehicle from automatic driving to manual driving at a point where the driving load is equal to or larger than the threshold value. A permission standard relaxation unit makes the driving load difficult to exceed the threshold value.
    Type: Application
    Filed: December 2, 2016
    Publication date: September 26, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshinori UENO, Mitsuo SHIMOTANI, Yoshitaka NAKAMURA, Naohiko OBATA, Tadashi MIYAHARA, Tomohiro SHIINO
  • Publication number: 20190270458
    Abstract: An object of the present invention is to implement, at a low hardware cost, a device that changes an autonomous driving control parameter whose step size is variably set. An autonomous driving control parameter changing device according to the present invention includes, a gesture operation acquisition unit that acquires information on a gesture operation for moving the operation target icon, a parameter changing unit that changes the autonomous driving control parameter in an increase or decrease direction defined in association with a movement direction in which the operation target icon is moved, and a step size setting unit that variably sets a step size based on a predetermined condition, the step size corresponding to an amount of change in the autonomous driving control parameter made by the parameter changing unit per occurrence of the gesture operation, and the change operation screen includes a display of the step size.
    Type: Application
    Filed: October 3, 2016
    Publication date: September 5, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mitsuo SHIMOTANI, Yoshitaka NAKAMURA, Tadashi MIYAHARA, Naohiko OBATA, Tsutomu MATSUBARA