Patents by Inventor Hirotaka TOKORO

Hirotaka TOKORO 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: 20240239409
    Abstract: A backward movement control device performs a backward movement control of an articulated vehicle including a tractor that includes steered wheels and a trailer towed by the tractor. The tractor is equipped with a steering control device that executes feedback control for causing a steered angle of the steered wheels of the tractor to follow a target steered angle. The backward movement control device includes a control unit configured to calculate the target steered angle such that a virtual steered angle follows a target virtual steered angle when a backward movement operation of the articulated vehicle is performed. The virtual steered angle is a steered angle of steered wheels that are virtually present in the trailer if the trailer is regarded as a rigid vehicle. The target virtual steered angle is a target value of the virtual steered angle that is set through a specific operation by an operator.
    Type: Application
    Filed: June 9, 2022
    Publication date: July 18, 2024
    Applicants: JTEKT CORPORATION, J-QuAD DYNAMICS INC.
    Inventors: Hirotaka TOKORO, Daisuke NAGASAKA, Akira ITO
  • Patent number: 11975719
    Abstract: A traveling control apparatus that allows lane changing due to a driver's steering intervention while continuing lane maintenance control includes an electronic control unit. The electronic control unit sets a target trace along a lane in which a vehicle is traveling, determines a target steering angle of the vehicle based on the target trace and a lateral position of the vehicle, applies control torque to a steering shaft of the vehicle based on the target steering angle, resets, in response to a change in the lateral position due to the driver's steering intervention which exceeds the control torque and entrance of the vehicle into an adjacent lane, the target trace to the adjacent lane, and determines, using a gradual changing function, in response to the resetting of the target trace, the target steering angle by changing the target steering angle at the time of the resetting.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: May 7, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Yoji Kunihiro, Takahiro Kojo, Hisaya Akatsuka, Hirotaka Tokoro
  • Publication number: 20230356749
    Abstract: A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go INOUE, Yoshinori Watanabe, Hirotaka Tokoro
  • Patent number: 11767014
    Abstract: A vehicle control system includes an information acquirer configured to acquire vehicle surrounding information, and a controller configured to execute driving assistance control. The controller is configured to set a first line as a target traveling line when an operation status of the driving assistance control is ON. The controller is configured to set, when a driving switching request is made, the target traveling line to cause a vehicle to travel along a second line displaced from the first line by a predetermined displacement amount after a specific timing that is a timing when a predetermined time has elapsed from a requested timing.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: September 26, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIO
    Inventors: Takahiro Kojo, Yoji Kunihiro, Hisashi Kajita, Hisaya Akatsuka, Hirotaka Tokoro
  • Patent number: 11753032
    Abstract: A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: September 12, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Go Inoue, Yoshinori Watanabe, Hirotaka Tokoro
  • Publication number: 20230072740
    Abstract: A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 9, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Go INOUE, Yoshinori Watanabe, Hirotaka Tokoro
  • Patent number: 11529970
    Abstract: A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: December 20, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Go Inoue, Yoshinori Watanabe, Hirotaka Tokoro
  • Patent number: 11524706
    Abstract: An override conciliating portion executes processing to conciliate an override request during an execution of automated driving control (i.e., override conciliation processing). In the override conciliation processing, it is determined whether or not there is the override request (step S20). If the determination result of the step S20 is positive, it is determined whether or not a second automated driving mode is selected as an operation mode (step S21). If the determination result of the step S21 is negative, acceptance processing of the override request is executed (step S22). If the determination result of the step S21 is positive, invalidation processing of the override request is executed (step S23).
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: December 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoji Kunihiro, Takahiro Kojo, Shun Mizoo, Takahiro Yokota, Shunsuke Tanimori, Hisaya Akatsuka, Masaki Shiota, Hirotaka Tokoro
  • Publication number: 20220306114
    Abstract: A traveling control apparatus that allows lane changing due to a driver's steering intervention while continuing lane maintenance control includes an electronic control unit. The electronic control unit sets a target trace along a lane in which a vehicle is traveling, determines a target steering angle of the vehicle based on the target trace and a lateral position of the vehicle, applies control torque to a steering shaft of the vehicle based on the target steering angle, resets, in response to a change in the lateral position due to the driver's steering intervention which exceeds the control torque and entrance of the vehicle into an adjacent lane, the target trace to the adjacent lane, and determines, using a gradual changing function, in response to the resetting of the target trace, the target steering angle by changing the target steering angle at the time of the resetting.
    Type: Application
    Filed: March 24, 2022
    Publication date: September 29, 2022
    Inventors: Yoji KUNIHIRO, Takahiro KOJO, Hisaya AKATSUKA, Hirotaka TOKORO
  • Publication number: 20210316724
    Abstract: A vehicle control system includes an information acquirer configured to acquire vehicle surrounding information, and a controller configured to execute driving assistance control. The controller is configured to set a first line as a target traveling line when an operation status of the driving assistance control is ON. The controller is configured to set, when a driving switching request is made, the target traveling line to cause a vehicle to travel along a second line displaced from the first line by a predetermined displacement amount after a specific timing that is a timing when a predetermined time has elapsed from a requested timing.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 14, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takahiro KOJO, Yoji KUNIHIRO, Hisashi KAJITA, Hisaya AKATSUKA, Hirotaka TOKORO
  • Patent number: 11117615
    Abstract: An apparatus for performing driving aid control to cause a travel trajectory of a mobile object to follow a setpoint trajectory (La) by transmitting a control command value (?) to a yaw moment controller capable of controlling a yaw moment of the mobile object. In the apparatus, a setpoint trajectory setter is configured to set the setpoint trajectory (La) of the mobile object. A control command value calculator is configured to calculate the control command value (?) based on an integrated value (?I) of a lateral error that is an error between a position of the mobile object and the setpoint trajectory. The control command value calculator is further configured to decrease the integrated value (?I) with decreasing a curvature (?) of a road on which the mobile object is traveling.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 14, 2021
    Assignee: DENSO CORPORATION
    Inventor: Hirotaka Tokoro
  • Patent number: 10919569
    Abstract: A vehicle control system installed on a vehicle executes turning control that controls a turning device configured to turn a wheel of the vehicle. The turning control includes: first turning control that generates a target trajectory and makes the vehicle follow the target trajectory; and second turning control that is executed independently of the first turning control without depending on the target trajectory. When the first turning control and the second turning control are executed simultaneously, the vehicle control system determines whether the first turning control counteracts turning by the second turning control. When the first turning control counteracts the turning by the second turning control, the vehicle control system replans the target trajectory by designating at least one of a current position and a current yaw angle of the vehicle as a starting point of the target trajectory.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go Inoue, Masaki Shiota, Hirotaka Tokoro
  • Publication number: 20200339152
    Abstract: A vehicle travel control device executes trajectory following control to make the vehicle follow a target trajectory. A delay time represents control delay of the trajectory following control. A delay compensation time is at least a part of the delay time. The trajectory following control includes: displacement estimation processing that estimates a displacement of the vehicle in the delay compensation time; and delay compensation processing that corrects a deviation between the vehicle and the target trajectory based on the estimated displacement to compensate the control delay. The displacement estimation processing is effective in an effective period and ineffective in an ineffective period. When the ineffective period is included in the delay time of the trajectory following control, the displacement estimation processing is executed in a temporary mode by using sensor-detected information in the effective period without using the sensor-detected information in the ineffective period.
    Type: Application
    Filed: February 26, 2020
    Publication date: October 29, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Go INOUE, Yoshinori WATANABE, Hirotaka TOKORO
  • Publication number: 20200324792
    Abstract: An override conciliating portion executes processing to conciliate an override request during an execution of automated driving control (i.e., override conciliation processing). In the override conciliation processing, it is determined whether or not there is the override request (step S20). If the determination result of the step S20 is positive, it is determined whether or not a second automated driving mode is selected as an operation mode (step S21). If the determination result of the step S21 is negative, acceptance processing of the override request is executed (step S22). If the determination result of the step S21 is positive, invalidation processing of the override request is executed (step S23).
    Type: Application
    Filed: April 6, 2020
    Publication date: October 15, 2020
    Inventors: Yoji Kunihiro, Takahiro Kojo, Shun Mizoo, Takahiro Yokota, Shunsuke Tanimori, Hisaya Akatsuka, Masaki Shiota, Hirotaka Tokoro
  • Publication number: 20200307625
    Abstract: A vehicle has first and second wheels arranged in a longitudinal direction. In vehicle travel control, a control device calculates a control amount based on a parameter detected by a sensor and controls vehicle travel in accordance with the control amount. Modes of the vehicle travel control include first and second modes. In the first mode, a forward direction is from the second wheel toward the first wheel. In the second mode, the forward direction is from the first wheel toward the second wheel. The control device holds definition information that defines at least one of the detected parameter and the control amount. In the first mode, the control device executes the vehicle travel control in accordance with first definition information for the first mode. In the second mode, the control device executes the vehicle travel control in accordance with second definition information for the second mode.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Go Inoue, Yoshinori Watanabe, Hirotaka Tokoro
  • Publication number: 20200070875
    Abstract: A vehicle control system installed on a vehicle executes turning control that controls a turning device configured to turn a wheel of the vehicle. The turning control includes: first turning control that generates a target trajectory and makes the vehicle follow the target trajectory; and second turning control that is executed independently of the first turning control without depending on the target trajectory. When the first turning control and the second turning control are executed simultaneously, the vehicle control system determines whether the first turning control counteracts turning by the second turning control. When the first turning control counteracts the turning by the second turning control, the vehicle control system replans the target trajectory by designating at least one of a current position and a current yaw angle of the vehicle as a starting point of the target trajectory.
    Type: Application
    Filed: July 8, 2019
    Publication date: March 5, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go INOUE, Masaki SHIOTA, Hirotaka TOKORO
  • Patent number: 10384716
    Abstract: An apparatus for performing driving aid control to cause a travel trajectory of a mobile object to follow a setpoint trajectory by transmitting a control command value to a yaw moment controller capable of controlling a yaw moment of the mobile object. In the apparatus, a first control command value calculator is configured to calculate a first control command value used to calculate the control command value. A straight-driving stabilizing compensator is configured to, when the mobile object is driving straight, calculate a first control command compensation value by decreasing the first control command value. A second control command value calculator is configured to calculate a second control command value used to calculate the control command value. A third control command value calculator is configured to calculate a final control command value based on the first control command compensation value and the second control command value.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: August 20, 2019
    Assignee: DENSO CORPORATION
    Inventor: Hirotaka Tokoro
  • Patent number: 10227087
    Abstract: A steering control device that can set and cancel an automatic driving mode includes a steering control unit, a cancellation instruction detection unit, a stop detection unit, and a steering angle reduction unit. The steering control unit controls a steering angle in the automatic driving mode so that a vehicle travels along an intended route. The cancellation instruction detection unit detects a cancellation instruction to cancel the automatic driving mode. The stop detection unit detects a stop of the vehicle. The steering angle reduction unit reduces the steering angle set by the steering control unit, if the cancellation instruction detection unit detects the cancellation instruction and the stop detection unit detects the stop of the vehicle.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 12, 2019
    Assignee: DENSO CORPORATION
    Inventors: Rui Fujino, Hirotaka Tokoro
  • Publication number: 20180118257
    Abstract: A steering control device that can set and cancel an automatic driving mode includes a steering control unit, a cancellation instruction detection unit, a stop detection unit, and a steering angle reduction unit. The steering control unit controls a steering angle in the automatic driving mode so that a vehicle travels along an intended route. The cancellation instruction detection unit detects a cancellation instruction to cancel the automatic driving mode. The stop detection unit detects a stop of the vehicle. The steering angle reduction unit reduces the steering angle set by the steering control unit, if the cancellation instruction detection unit detects the cancellation instruction and the stop detection unit detects the stop of the vehicle.
    Type: Application
    Filed: May 20, 2016
    Publication date: May 3, 2018
    Inventors: Rui Fujino, Hirotaka Tokoro
  • Publication number: 20180057053
    Abstract: An apparatus for performing driving aid control to cause a travel trajectory of a mobile object to follow a setpoint trajectory by transmitting a control command value to a yaw moment controller capable of controlling a yaw moment of the mobile object. In the apparatus, a first control command value calculator is configured to calculate a first control command value used to calculate the control command value. A straight-driving stabilizing compensator is configured to, when the mobile object is driving straight, calculate a first control command compensation value by decreasing the first control command value. A second control command value calculator is configured to calculate a second control command value used to calculate the control command value. A third control command value calculator is configured to calculate a final control command value based on the first control command compensation value and the second control command value.
    Type: Application
    Filed: August 22, 2017
    Publication date: March 1, 2018
    Inventor: Hirotaka TOKORO