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).
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Patent number: 11834283Abstract: 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: GrantFiled: October 9, 2019Date of Patent: December 5, 2023Assignees: Daifuku Co., Ltd., Iwasaki Seisakusho Co., Ltd.Inventors: Takafumi Fuma, Yoshitaka Deguchi, Motoi Harada, Keishi Shibata, Hiroshi Ishiguro
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Publication number: 20200115173Abstract: 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: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Inventors: Takafumi Fuma, Yoshitaka Deguchi, Motoi Harada, Keishi Shibata, Hiroshi Ishiguro
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Publication number: 20180162390Abstract: 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: ApplicationFiled: June 3, 2015Publication date: June 14, 2018Inventors: Masahiro Miura, Yoshitaka Deguchi
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Patent number: 9132731Abstract: 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: GrantFiled: September 19, 2007Date of Patent: September 15, 2015Assignee: NISSAN MOTOR CO., LTD.Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi
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Patent number: 8392104Abstract: 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: GrantFiled: March 19, 2007Date of Patent: March 5, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Hikaru Nishira, Yoshitaka Deguchi
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Patent number: 8335625Abstract: 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: GrantFiled: September 5, 2006Date of Patent: December 18, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi
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Patent number: 8155879Abstract: 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: GrantFiled: January 30, 2009Date of Patent: April 10, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Yoshitaka Takagi, Hikaru Nishira, Yoshitaka Deguchi, Taketora Negome
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Patent number: 8090537Abstract: 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: GrantFiled: June 11, 2007Date of Patent: January 3, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Hikaru Nishira, Yoshitaka Deguchi
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Patent number: 7996129Abstract: 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: GrantFiled: February 16, 2007Date of Patent: August 9, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Shinichiro Joe, Yoshitaka Deguchi
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Patent number: 7860653Abstract: 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: GrantFiled: September 20, 2007Date of Patent: December 28, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Shinichiro Joe, Yoshitaka Deguchi
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Patent number: 7845218Abstract: 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: GrantFiled: September 30, 2008Date of Patent: December 7, 2010Assignees: Nissan Motor Co., Ltd., The Board of Trustees of the Leland Stanford Junior UniversityInventors: Shinichiro Joe, Yoshitaka Deguchi, Yung-Hsiang Judy Hsu, Shad Mitchell Laws, Joseph Christian Gerdes
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Publication number: 20100235035Abstract: 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: ApplicationFiled: March 19, 2007Publication date: September 16, 2010Inventors: Hikaru Nishira, Yoshitaka Deguchi
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Patent number: 7729840Abstract: 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: GrantFiled: May 29, 2007Date of Patent: June 1, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Hikaru Nishira, Yoshitaka Deguchi
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Publication number: 20100077847Abstract: 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: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: Shinichiro JOE, Yoshitaka Deguchi, Yung-Hsiang Judy Hsu, Shad Mitchell Laws, Joseph Christian Gerdes
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Publication number: 20090228174Abstract: 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: ApplicationFiled: January 30, 2009Publication date: September 10, 2009Inventors: Yoshitaka Takagi, Hikaru Nishira, Yoshitaka Deguchi, Taketora Negome
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Patent number: 7565937Abstract: 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: GrantFiled: September 2, 2005Date of Patent: July 28, 2009Assignee: Nissan Motor Co., Ltd.Inventors: Yoshitaka Deguchi, Ichiro Yamaguchi
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Publication number: 20090118907Abstract: 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: ApplicationFiled: February 16, 2007Publication date: May 7, 2009Applicant: NISSAN MOTOR CO., LTD.Inventors: Shinichiro Joe, Yoshitaka Deguchi
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Patent number: 7440834Abstract: 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: GrantFiled: June 27, 2005Date of Patent: October 21, 2008Assignee: Nissan Motor Co., Ltd.Inventors: Ichiro Yamaguchi, Yoshitaka Deguchi, Hideaki Inoue
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Publication number: 20080086269Abstract: 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: ApplicationFiled: September 20, 2007Publication date: April 10, 2008Applicant: NISSAN MOTOR CO., LTD.Inventors: Shinichiro JOE, Yoshitaka DEGUCHI
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Publication number: 20080071451Abstract: 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: ApplicationFiled: September 19, 2007Publication date: March 20, 2008Inventors: Ichiro YAMAGUCHI, Yoshitaka DEGUCHI