Patents by Inventor Yuta Ikezawa

Yuta Ikezawa 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: 11420622
    Abstract: A driving assistance apparatus can provide deceleration assistance of decelerating a host vehicle independently of an operation by a driver. The driving assistance apparatus is provided with: a specifier configured to specify a type of a target associated with the deceleration assistance, wherein the target is ahead of the host vehicle on a course thereof and requires the host vehicle to decelerate or stop; and a controller programmed to change an end condition associated with deceleration assistance, in accordance with the specified type.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 23, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Masahiko Adachi, Shogo Ito, Shuichi Yamaki
  • Patent number: 11390280
    Abstract: A driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of a host vehicle; a controller programmed to execute a deceleration assistance control of assisting in decelerating a host vehicle when a predetermined condition is satisfied; a determinator configured to determine whether or not the host vehicle is traveling on a roadway on the basis of the recognized surrounding situation; and a restraining device configured to restrain execution of the deceleration assistance control by a controller if it is determined that the host vehicle is not traveling on a roadway, in comparison with a situation in which it is determined that the host vehicle is traveling on a roadway.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: July 19, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo Ito, Hirotada Otake, Kohei Tochigi, Yuta Ikezawa
  • Patent number: 11364888
    Abstract: A driving assistance apparatus can execute deceleration assistance of decelerating a host vehicle independently of an operation by a driver. The driving assistance apparatus is provided with: an acquirer configured to obtain surrounding information associated with a surrounding situation of the host vehicle; and a controller programmed to reduce a deceleration assistance amount associated with the deceleration assistance when execution of the deceleration assistance is released. The controller is programmed to quickly reduce the deceleration assistance amount when execution of the deceleration assistance is released, if a surrounding situation indicated by the obtained surrounding information is a first situation in which the host vehicle can be required to accelerate, in comparison with a second situation in which the host vehicle cannot be required to accelerate.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: June 21, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Patent number: 11305772
    Abstract: A driving assistance apparatus can execute a deceleration assistance control, when there is a deceleration target ahead, of the vehicle in a course thereof. The driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of the vehicle; and a controller programed to execute the deceleration assistance control when a predetermined condition is satisfied. The controller is programed to suppress execution of the deceleration assistance control if a road as the recognized surrounding situation has a high extent of a downgrade, in comparison with a situation in which the road has a low extent of the downgrade.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: April 19, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Patent number: 11260863
    Abstract: A driving assistance apparatus can execute a deceleration assistance control, when there is a deceleration target ahead, of the vehicle in a course thereof. The driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of the vehicle; and a controller programed to execute the deceleration assistance control when a predetermined condition is satisfied. The controller is programed to suppress execution of the deceleration assistance control if a road as the recognized surrounding situation has a high extent of a downgrade, in comparison with a situation in which the road has a low extent of the downgrade.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: March 1, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Patent number: 11244179
    Abstract: A stop line position estimation device includes a traffic signal recognition unit configured to recognize a traffic signal at an intersection ahead of a vehicle and a stop line position estimation unit configured to estimate that a position of the stop line is a position from the traffic signal by a first distance toward the vehicle side. When the traffic signal recognition unit recognizes a plurality of traffic signals and the stop line position estimation unit recognizes an immediate front traffic signal and a rear traffic signal based on a positional relationship between the traffic signals, the stop line position estimation unit estimates that the position of the stop line is a position from the immediate front traffic signal by a second distance toward the vehicle side. The second distance is shorter than the first distance.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: February 8, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito, Hirotada Otake
  • Publication number: 20220027640
    Abstract: In a road type determination apparatus, an image information acquiring unit acquires image information in which an image of a travel road on which a vehicle is traveling is captured. A scene determining unit determines a traveling scene of the travel road based on the image information. An ordinary road likelihood calculating unit calculates an ordinary road likelihood that indicates that a type of the travel road of the vehicle is an ordinary road based on the traveling scene. A limited-access road likelihood calculating unit calculates a limited-access road likelihood that indicates that the type of the travel road of the vehicle is a limited-access road based on the traveling scene. A type determining unit determines the type of the travel road of the vehicle based on the ordinary road likelihood and the limited-access road likelihood.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Inventors: Takatoshi TOSA, Takayuki KONDOH, Shin TANAKA, Yuta IKEZAWA, Kazuhiro MORIMOTO
  • Patent number: 11173905
    Abstract: A driving assistance apparatus performs a stop control of stopping a host vehicle so that a following distance between the host vehicle and a stopped vehicle, which is ahead in a course of the host vehicle, approaches a target following distance. The driving assistance apparatus is provided with: a setting device configured to set the target following distance smaller, if an operation speed is less than a predetermined speed, in comparison with that if the operation speed is greater than the predetermined speed when one of an acceleration off operation and a brake off operation is performed, or when one of an accelerator opening degree corresponding to an operation amount of an accelerator pedal and a brake opening degree corresponding to an operation amount of a brake pedal is less than or equal to a predetermined opening degree, while the stopped vehicle is recognized.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: November 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo Ito, Kohei Tochigi, Yuta Ikezawa
  • Publication number: 20210213967
    Abstract: When a driver is not in pedal erroneous operation inducing situation and a rate of change in an operation amount of an accelerator pedal is equal to or greater than a first erroneous operation determination threshold value, a driving assistance apparatus determines that operation of the accelerator pedal is erroneous operation. When the driver is in the pedal erroneous operation inducing situation and the rate of change in the operation amount of the accelerator pedal is equal to or greater than a second erroneous operation determination threshold value, the riving assistance apparatus determines that the operation of the accelerator pedal is the erroneous operation, and the second erroneous operation determination threshold value is smaller than the first erroneous operation determination threshold value.
    Type: Application
    Filed: October 20, 2020
    Publication date: July 15, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kohei Tochigi, Yuta Ikezawa, Shogo Ito
  • Publication number: 20210171032
    Abstract: A driving support system detects a deceleration object ahead and starts deceleration assistance for a host vehicle. The driving support system includes a reliability calculation unit configured to calculate a reliability of detection of the deceleration object, an assistance mode selection unit configured to select an assistance mode of the deceleration assistance from among multiple assistance modes in accordance with the calculated reliability of detection, and a driving support unit configured to perform the deceleration assistance in the selected assistance mode. The assistance mode selection unit is configured to select a first assistance mode when the reliability of detection is lower than a predetermined reliability threshold and select a second assistance mode higher in a level of the deceleration assistance than the first assistance mode when the reliability of detection is higher than or equal to the reliability threshold.
    Type: Application
    Filed: August 13, 2020
    Publication date: June 10, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo ITO, Kohei Tochigi, Yuta Ikezawa
  • Publication number: 20210162992
    Abstract: A driver assistance device is configured to determine whether a type of a deceleration target is included in a category of a position-fixed object or a moving object, and determine whether the deceleration target is lost, and to continue the deceleration assistance on assumption that the lost deceleration target exists when the deceleration target is determined to be lost. The driver assistance device is configured to notify a driver of a host vehicle that the deceleration target is lost when the deceleration target is determined to be lost and the type of the deceleration target is included in the category of the moving object, and not to notify the driver that the deceleration target is lost when the deceleration target is determined to be lost and the type of the deceleration target is included in the category of the position-fixed object.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Publication number: 20210139019
    Abstract: A driving assistance apparatus includes: a recognition unit that recognizes a lighting and a progressing-permitted direction of an arrow type traffic signal based on an external sensor; a comparison unit that compares the progressing-permitted direction with a scheduled progressing direction of a vehicle; an assistance unit that performs a driving assistance based on a result of comparison performed by the comparison unit; a determination unit that determines a travel state of a surrounding vehicle of the vehicle based on the external sensor; and an estimation unit that estimates the progressing-permitted direction of the arrow type traffic signal based on a result of determination performed by the determination unit, wherein the comparison unit compares the progressing-permitted direction and the scheduled progressing direction of the vehicle, when the lighting of the arrow type traffic signal is recognized by the recognition unit and the progressing-permitted direction is not recognized.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 13, 2021
    Inventors: Shogo ITO, Kohei TOCHIGI, Yuta IKEZAWA
  • Publication number: 20210139020
    Abstract: A driving assistance apparatus is configured to determine whether a preset deceleration assistance start condition is satisfied, start deceleration assistance for a driver's vehicle against a first deceleration-triggering object, determine whether a preset deceleration assistance termination condition is satisfied, issue a deceleration assistance termination notification to a driver of the driver's vehicle, determine whether a second deceleration-triggering object is detected ahead of the driver's vehicle, and determine whether a preset quick resumption condition is satisfied. The driving assistance apparatus is configured not to issue the deceleration assistance termination notification when the driving assistance apparatus determines that the quick resumption condition is satisfied, even in a case where the driving assistance apparatus determines that the deceleration assistance termination condition for the first deceleration-triggering object is satisfied.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 13, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Publication number: 20210129841
    Abstract: A driving assistance device that assists in driving a vehicle that travels toward a traffic light with an arrow signal includes a recognizing unit that recognizes lighting of the arrow signal and a travelable direction, based on a detection result of an external sensor for sensing an external environment of the vehicle, and an assisting unit that performs first assistance including at least one of speed-reduction assistance for reducing the vehicle speed and informing assistance for prompting speed reduction of the vehicle, when the recognized travelable direction of the arrow signal is different from an expected traveling direction of the vehicle. When lighting of the arrow signal is recognized by the recognizing unit, and the travelable direction of the arrow signal is not recognized by the recognizing unit, the assisting unit performs second assistance having a smaller degree of assistance than the first assistance, until the travelable direction is recognized.
    Type: Application
    Filed: August 11, 2020
    Publication date: May 6, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta IKEZAWA, Kohei Tochigi, Shogo Ito
  • Publication number: 20210064894
    Abstract: A stop line position estimation device includes a traffic signal recognition unit configured to recognize a traffic signal at an intersection ahead of a vehicle and a stop line position estimation unit configured to estimate that a position of the stop line is a position from the traffic signal by a first distance toward the vehicle side. When the traffic signal recognition unit recognizes a plurality of traffic signals and the stop line position estimation unit recognizes an immediate front traffic signal and a rear traffic signal based on a positional relationship between the traffic signals, the stop line position estimation unit estimates that the position of the stop line is a position from the immediate front traffic signal by a second distance toward the vehicle side. The second distance is shorter than the first distance.
    Type: Application
    Filed: August 14, 2020
    Publication date: March 4, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito, Hirotada Otake
  • Publication number: 20200231172
    Abstract: A driving assistance apparatus is configured to perform an assistance control of assisting in driving a vehicle, when a first condition and a second condition are satisfied, in a situation in which a target is recognized. The driving assistance apparatus is provided with: a determinator configured to determine a state of the assistance control. The determinator is configured (i) to determine that the state of the assistance control is a standby state if a standby condition is satisfied, wherein the standby condition requires that the first condition is satisfied, but the second condition is not satisfied, in the situation in which the target is recognized, and (ii) to determine that the state of the assistance control is an interruption state if an interruption condition is satisfied, wherein the interruption condition requires that the first condition is no longer satisfied while the satisfaction of the standby condition is continued.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 23, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kohei Tochigi, Shogo Ito, Yuta Ikezawa
  • Publication number: 20200231154
    Abstract: A driving assistance apparatus can execute a deceleration assistance control, when there is a deceleration target ahead, of the vehicle in a course thereof. The driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of the vehicle; and a controller programed to execute the deceleration assistance control when a predetermined condition is satisfied. The controller is programed to suppress execution of the deceleration assistance control if a road as the recognized surrounding situation has a high extent of a downgrade, in comparison with a situation in which the road has a low extent of the downgrade.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 23, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Publication number: 20200231156
    Abstract: A driving assistance apparatus is provided with: a recognizer configured to recognize a surrounding situation of a host vehicle; a controller programmed to execute a deceleration assistance control of assisting in decelerating a host vehicle when a predetermined condition is satisfied; a determinator configured to determine whether or not the host vehicle is traveling on a roadway on the basis of the recognized surrounding situation; and a restraining device configured to restrain execution of the deceleration assistance control by a controller if it is determined that the host vehicle is not traveling on a roadway, in comparison with a situation in which it is determined that the host vehicle is traveling on a roadway.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 23, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shogo Ito, Hirotada Otake, Kohei Tochigi, Yuta Ikezawa
  • Publication number: 20200223410
    Abstract: A driving assistance apparatus can execute deceleration assistance of decelerating a host vehicle independently of an operation by a driver. The driving assistance apparatus is provided with: an acquirer configured to obtain surrounding information associated with a surrounding situation of the host vehicle; and a controller programmed to reduce a deceleration assistance amount associated with the deceleration assistance when execution of the deceleration assistance is released. The controller is programmed to quickly reduce the deceleration assistance amount when execution of the deceleration assistance is released, if a surrounding situation indicated by the obtained surrounding information is a first situation in which the host vehicle can be required to accelerate, in comparison with a second situation in which the host vehicle cannot be required to accelerate.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuta Ikezawa, Kohei Tochigi, Shogo Ito
  • Publication number: 20200207347
    Abstract: A vehicle control apparatus is provided with: a recognizer configured to recognize a surrounding situation of a host vehicle; a controller programmed to perform a deceleration control when a deceleration target is recognized by the recognizer; and a detector configured to detect a slip of the host vehicle. The controller sets a first controlled variable, which is a controlled variable associated with the deceleration control when the slip of the host vehicle is detected without execution of the deceleration control, so as to suppress an extent of deceleration of the host vehicle, in comparison with a second controlled variable, which is the controlled variable when the slip of the host vehicle is not detected without execution of the deceleration control.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shogo Ito, Masahiko Adachi, Kohei Tochigi, Yuta Ikezawa