Patents by Inventor Yoshitaka Deguchi

Yoshitaka Deguchi 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: 11834283
    Abstract: A loading system includes one or more adjusting mechanisms configured to adjust a position of the container held by the container holder, a controller configured to control operation of the one or more adjusting mechanisms, a transfer mechanism configured to move a loadable object into a holding space of the container with the container held by the container holder to transfer the loadable object to the container, and one or more position detectors. The one or more position detectors are located to detect a relative position of a loadable object when the loadable object is held by the transfer mechanism and is in the holding space.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 5, 2023
    Assignees: Daifuku Co., Ltd., Iwasaki Seisakusho Co., Ltd.
    Inventors: Takafumi Fuma, Yoshitaka Deguchi, Motoi Harada, Keishi Shibata, Hiroshi Ishiguro
  • Publication number: 20200115173
    Abstract: A loading system includes one or more adjusting mechanisms configured to adjust a position of the container held by the container holder, a controller configured to control operation of the one or more adjusting mechanisms, a transfer mechanism configured to move a loadable object into a holding space of the container with the container held by the container holder to transfer the loadable object to the container, and one or more position detectors. The one or more position detectors are located to detect a relative position of a loadable object when the loadable object is held by the transfer mechanism and is in the holding space.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 16, 2020
    Inventors: Takafumi Fuma, Yoshitaka Deguchi, Motoi Harada, Keishi Shibata, Hiroshi Ishiguro
  • Publication number: 20180162390
    Abstract: A vehicle control device includes a periphery-information detection unit that detects information on the periphery of a vehicle; a travel-state detection unit that detects the travel state of the vehicle; a travel controller that controls autonomous travel of the vehicle based on the information on the periphery, the travel state , a higher-level action plan for reaching a destination, and a lower-level action plan for controlling at least one of a vehicle-speed target value and a steering target value to accomplish the higher-level action plan; actuator units each including a redundant configuration; a higher-level action-plan compensation-range computation unit that computes a compensation range for the higher-level action plan that allows travel where performance of one of the actuator units has decreased; and a higher-level action-plan limiting unit that limits the higher-level action plan by using the compensation range computed by the higher-level action-plan compensation-range computation unit.
    Type: Application
    Filed: June 3, 2015
    Publication date: June 14, 2018
    Inventors: Masahiro Miura, Yoshitaka Deguchi
  • Patent number: 9132731
    Abstract: A controller (8) controlling a drive force distributed to each wheel (1-4) of a vehicle sets dynamic drive force target values (Fxf**, Fx3**, Fx4**) to the wheels, and determines a variation amount target ratio related to variation amounts (?M, ?Fx, ?Fy) of a vehicle yaw moment (M), a vehicle front/aft force (Fx), and a vehicle lateral force (Fy) such that a vehicle behavior generated by the dynamic drive force target values does not vary. The controller (8) determines sets of the drive forces (Fxf(j, k), Fx3(j, k), Fx4(j, k)) realizing the variation amount target ratio, selects drive force command values from these sets such that each drive force command value is within a drive force limiting range, and controls a drive force regulating mechanism (20, 12, 13, 15,16) according to the selected drive force command values.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: September 15, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi
  • Patent number: 8392104
    Abstract: Provided is an avoidance maneuver calculation device that calculates a driving maneuver amount that enables an automotive vehicle to avoid an obstacle within a travelable range of a road. The device includes: a road boundary detector for detecting a road 13 where a vehicle 12 is traveling and a boundary section thereof; an obstacle detector for detecting an obstacle 14 existing on the road 13; an automotive vehicle information detector for detecting information on the vehicle 12; and an avoidance maneuver calculator 28 for calculating a maneuver amount for avoiding the obstacle 14 on the road 13.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: March 5, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hikaru Nishira, Yoshitaka Deguchi
  • Patent number: 8335625
    Abstract: A method and apparatus for rapidly causing a slip of a driving wheel to converge regardless of the change in vehicle conditions when the driving wheel is in a slip state. When a slip occurs on a driving wheel, a second driving force command value is calculated from a driving force control value controlled by driving force control means and an angular acceleration. The second driving force command value is calculated so that torque capable of being transmitted to a road surface by the driving wheel takes the maximum value. Therefore, even if the friction coefficient of road surface or the wheel load changes, the driving torque of driving wheel can be commanded properly, so that the slip can be converged rapidly. The occurrence of slip at the time of re-acceleration after slip convergence can be avoided.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: December 18, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi
  • Patent number: 8155879
    Abstract: A vehicle driving assistance apparatus includes a brake operation sensing device to sense a driver's brake operation, a steering operation sensing device to sense a driver's steering operation, a forward, and a controller. The controller is configured to determine whether there is a need for avoiding the obstacle, by examining a possibility of contact of the vehicle with the obstacle, and to produce a yaw moment to an obstacle avoiding direction advantageous for avoiding the obstacle, from the time of detection of the driver's brake operation, to the time of detection of the driver's steering operation, by adjusting a wheel brake/drive force distribution among wheels resulting from the driver's brake operation when there is the need for avoiding the obstacle.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: April 10, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoshitaka Takagi, Hikaru Nishira, Yoshitaka Deguchi, Taketora Negome
  • Patent number: 8090537
    Abstract: An obstacle avoidance path computing apparatus is provided with a preceding object detecting section, a host vehicle information detecting section, a preceding object arrival region estimating section and a preceding object avoidance path setting section. The preceding object detecting section detects a preceding object. The host vehicle information detecting section detects host vehicle information. The preceding object arrival region estimating section calculates an estimated arrival region within which the preceding object could arrive after a prescribed amount of time has elapsed since the preceding object was detected, based on an estimated attribute of the preceding object from the preceding object information. The preceding object avoidance path setting section calculates an avoidance path that will not encroach on the estimated arrival region based the preceding object information and the host vehicle information.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 3, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hikaru Nishira, Yoshitaka Deguchi
  • Patent number: 7996129
    Abstract: A vehicular behavior controller is disclosed. The controller comprises a turning force application mechanism and a stabilization controller. The turning force application mechanism applies a turning force to a vehicle. The stabilization controller is operable to regulate the turning force application mechanism in such a manner that a turning characteristic and a straight travel property of the vehicle are stabilized while in an unstable velocity area when the velocity of the vehicle exceeds a stable limit velocity.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: August 9, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinichiro Joe, Yoshitaka Deguchi
  • Patent number: 7860653
    Abstract: An obstacle avoidance control apparatus is provided with an obstacle detecting section, a first obstacle proximity distance prediction section, a second obstacle avoidance direction determining section, a target vehicle body slip angle setting section and a vehicle behavior controlling section. The obstacle detecting section detects preceding obstacles. The first obstacle proximity distance prediction section predicts a closest proximity distance between the host vehicle and a first (closest) obstacle. The second obstacle avoidance direction determining section determines a second obstacle avoidance direction to avoid the second obstacle. The target vehicle body slip angle setting section sets a target vehicle body slip angle, such that the host vehicle faces further inward of the turning direction as the proximity distance increases.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 28, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinichiro Joe, Yoshitaka Deguchi
  • Patent number: 7845218
    Abstract: A tire state estimator includes a lateral force upper limit estimating section, a lateral force estimating section, and a tire slip angle estimating section. The lateral force upper limit estimating section calculates an estimated tire lateral force upper limit, on a basis of an estimated tire slip angle and a measured tire self aligning torque. The lateral force estimating section calculates an estimated tire lateral force, on a basis of the estimated tire lateral force upper limit calculated by the lateral force upper limit estimating section and the estimated tire slip angle. The tire slip angle estimating section calculates the estimated tire slip angle, on a basis of the estimated tire lateral force calculated by the lateral force estimating section and a measured vehicle state.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: December 7, 2010
    Assignees: Nissan Motor Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Shinichiro Joe, Yoshitaka Deguchi, Yung-Hsiang Judy Hsu, Shad Mitchell Laws, Joseph Christian Gerdes
  • Publication number: 20100235035
    Abstract: Provided is an avoidance maneuver calculation device that calculates a driving maneuver amount that enables an automotive vehicle to avoid an obstacle within a travelable range of a road. The device includes: a road boundary detector for detecting a road 13 where a vehicle 12 is traveling and a boundary section thereof; an obstacle detector for detecting an obstacle 14 existing on the road 13; an automotive vehicle information detector for detecting information on the vehicle 12; and an avoidance maneuver calculator 28 for calculating a maneuver amount for avoiding the obstacle 14 on the road 13.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 16, 2010
    Inventors: Hikaru Nishira, Yoshitaka Deguchi
  • Patent number: 7729840
    Abstract: A vehicle brake control system is provided with a preceding object detecting section, a running condition detection section, a steering actuation state detecting section, a braking force detecting section, a preceding object avoidability determining section and a braking force control section. The preceding object avoidability determining section determines a possibility of avoiding the preceding object by steering and reducing the current braking force acting on the host vehicle based on the position of the preceding object, the running condition of the host vehicle, the braking force applied to the host vehicle and the steering wheel actuation state that are detected. The braking force control section reduces the current braking force applied by the host vehicle braking system when the preceding object avoidability determining section determines that the preceding object can be avoided by steering and reducing the current braking force acting on the host vehicle.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: June 1, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hikaru Nishira, Yoshitaka Deguchi
  • Publication number: 20100077847
    Abstract: A tire state estimator includes a lateral force upper limit estimating section, a lateral force estimating section, and a tire slip angle estimating section. The lateral force upper limit estimating section calculates an estimated tire lateral force upper limit, on a basis of an estimated tire slip angle and a measured tire self aligning torque. The lateral force estimating section calculates an estimated tire lateral force, on a basis of the estimated tire lateral force upper limit calculated by the lateral force upper limit estimating section and the estimated tire slip angle. The tire slip angle estimating section calculates the estimated tire slip angle, on a basis of the estimated tire lateral force calculated by the lateral force estimating section and a measured vehicle state.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Shinichiro JOE, Yoshitaka Deguchi, Yung-Hsiang Judy Hsu, Shad Mitchell Laws, Joseph Christian Gerdes
  • Publication number: 20090228174
    Abstract: A vehicle driving assistance apparatus includes a brake operation sensing device to sense a driver's brake operation, a steering operation sensing device to sense a driver's steering operation, a forward, and a controller. The controller is configured to determine whether there is a need for avoiding the obstacle, by examining a possibility of contact of the vehicle with the obstacle, and to produce a yaw moment to an obstacle avoiding direction advantageous for avoiding the obstacle, from the time of detection of the driver's brake operation, to the time of detection of the driver's steering operation, by adjusting a wheel brake/drive force distribution among wheels resulting from the driver's brake operation when there is the need for avoiding the obstacle.
    Type: Application
    Filed: January 30, 2009
    Publication date: September 10, 2009
    Inventors: Yoshitaka Takagi, Hikaru Nishira, Yoshitaka Deguchi, Taketora Negome
  • Patent number: 7565937
    Abstract: An electric vehicle includes a vehicle body, a front wheel supported on the vehicle body for steering motion in accordance with motion of the vehicle body, a pair of rear wheels supported on the vehicle body for steering motion, a steering unit configured to regulate a steer angle of each of the rear wheels, a motor unit configured to independently apply a wheel torque to each of the rear wheels, and a control unit. The control unit is configured to control the total of the wheel torques in accordance with an associated setpoint, and to control the steer angles and the difference between the wheel torques so that the attitude and the yaw rate vary in accordance with associated setpoints.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: July 28, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yoshitaka Deguchi, Ichiro Yamaguchi
  • Publication number: 20090118907
    Abstract: A vehicular behavior controller is disclosed. The controller comprises a turning force application mechanism and a stabilization controller. The turning force application mechanism applies a turning force to a vehicle. The stabilization controller is operable to regulate the turning force application mechanism in such a manner that a turning characteristic and a straight travel property of the vehicle are stabilized while in an unstable velocity area when the velocity of the vehicle exceeds a stable limit velocity.
    Type: Application
    Filed: February 16, 2007
    Publication date: May 7, 2009
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shinichiro Joe, Yoshitaka Deguchi
  • Patent number: 7440834
    Abstract: A drive force distribution system for a four wheel independent drive vehicle is configured to suppress changes in longitudinal and lateral accelerations and change in yaw moment about the center of gravity of the vehicle that occur when the brake/drive force of one wheel changes or is changed deliberately. The drive force distribution system is configured such that when the brake forces and the drive forces determined by the brake/drive force determining section based on the motion requirements of the vehicle are to be changed, the drive force revising section revises the brake/drive forces of the left front wheel, the right front wheel, the left rear wheel, and the right rear wheel by amounts, respectively, based on the sensitivities of the tire lateral forces of each of the wheels estimated by the tire lateral force sensitivity estimating section so as to satisfy the motion requirements of the vehicle.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: October 21, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi, Hideaki Inoue
  • Publication number: 20080086269
    Abstract: An obstacle avoidance control apparatus is provided with an obstacle detecting section, a first obstacle proximity distance prediction section, a second obstacle avoidance direction determining section, a target vehicle body slip angle setting section and a vehicle behavior controlling section. The obstacle detecting section detects preceding obstacles. The first obstacle proximity distance prediction section predicts a closest proximity distance between the host vehicle and a first (closest) obstacle. The second obstacle avoidance direction determining section determines a second obstacle avoidance direction to avoid the second obstacle. The target vehicle body slip angle setting section sets a target vehicle body slip angle, such that the host vehicle faces further inward of the turning direction as the proximity distance increases.
    Type: Application
    Filed: September 20, 2007
    Publication date: April 10, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shinichiro JOE, Yoshitaka DEGUCHI
  • Publication number: 20080071451
    Abstract: A controller (8) controlling a drive force distributed to each wheel (1-4) of a vehicle sets dynamic drive force target values (Fxf**, Fx3**, Fx4**) to the wheels, and determines a variation amount target ratio related to variation amounts (?M, ?Fx, ?Fy) of a vehicle yaw moment (M), a vehicle front/aft force (Fx), and a vehicle lateral force (Fy) such that a vehicle behavior generated by the dynamic drive force target values does not vary. The controller (8) determines sets of the drive forces (Fxf(j, k), Fx3(j, k), Fx4(j, k)) realizing the variation amount target ratio, selects drive force command values from these sets such that each drive force command value is within a drive force limiting range, and controls a drive force regulating mechanism (20, 12, 13, 15,16) according to the selected drive force command values.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 20, 2008
    Inventors: Ichiro YAMAGUCHI, Yoshitaka DEGUCHI