Patents by Inventor Toshio Fuwa

Toshio Fuwa 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: 8967442
    Abstract: A film transport apparatus includes: an edge sensor that detects a lateral position deviation of a film; a lateral position correction device that corrects a lateral position of the film with a guide roll; a tension sensor that detects tensions applied respectively near left and right ends of the film; and a control unit that executes feedback control such that the lateral position correction device is controlled on the basis of the lateral position deviation detected by the edge sensor so that the film is located at a target position. The control unit changes the feedback control based on a left and right tension difference, which is a difference between the tension applied near the left end of the film and the tension applied near the right end of the film, the tensions being detected by the tension sensor.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: March 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8800833
    Abstract: A web meandering correction system (1) includes: an edge detector (2) that detects an edge position signal of a web; an HPF processing unit (3) that executes a high-pass filtering process on the edge position signal using a predetermined lower limit frequency as a reference; a high-frequency noise analyzing unit (4) that analyzes high-frequency noise that has passed through the HPF processing unit (3); an LPF processing unit (5) that executes a low-pass filtering process on the edge position signal using a predetermined upper limit frequency as a reference; a coefficient setting unit (6) that sets a coefficient that determines the characteristics of the low-pass filtering process on the basis of a result of analysis by the high-frequency noise analyzing unit (4); and a meandering correction unit (7) that corrects meandering of the web on the basis of information acquired by the LPF processing unit (5).
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: August 12, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8447506
    Abstract: A traveling device 10 includes ground touching detection means to detect a ground touching state in which a ground touching member touches a road surface, and control means to perform inversion control by controlling the driving of a wheel. When a ground touching state of the ground touching member is detected by the ground touching detection means, the control means suspends the inversion control. Further, when the start of braking is detected by the braking detection means and a ground touching state of the ground touching member is detected by the ground touching means, the control means may suspend the inversion control.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 21, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshio Fuwa, Yushi Takeuchi, Takashi Izuo
  • Patent number: 8371410
    Abstract: An inverted wheel type moving body according to the present invention includes a right chassis 17 and a left chassis 19 rotationally supporting wheels, motors 34 and 36 rotationally driving a right driving wheel 18 and a left driving wheel 20, a body 12 rotatably supported on the right chassis 17 and the left chassis 19 through a right arm 14 and a left arm 16, lower joint motors 65 and 95 disposed in the right arm 14 and the left arm 16 and varying vehicle height of the moving body 100, and a control unit 80 that controls the lower joint motors 65 and 95 to lower the vehicle height based on a fail signal 88 output when the inverted wheel type moving body is in an abnormal state.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: February 12, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8224524
    Abstract: A vehicle includes first and second rotary bodies in contact with a road surface. The vehicle also includes a rotation sensor that detects a rotational state of each of the first and second rotary bodies. Additionally, the vehicle includes a turning sensor that detects a physical quantity representing a turning state of the vehicle on the road surface. The vehicle also includes a calculation unit that calculates a predicted value of a turning parameter representing a turning amount of the vehicle by use of a difference between first and second physical quantities which represent the rotational states of the first and second rotary bodies. In addition, the vehicle includes a slip detection unit that detects occurrence of a slip of the first or second rotary body by comparing the predicted value with an actual measured value of the turning parameter obtained by receiving an output signal of the turning sensor.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: July 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Issei Nakashima, Toshio Fuwa
  • Patent number: 8170781
    Abstract: An inverted wheel type moving body according to the present invention includes a right chassis 17 and a left chassis 19 rotationally supporting wheels, motors 34 and 36 rotationally driving a right driving wheel 18 and a left driving wheel 20, a body 12 rotatably supported on the right chassis 17 and the left chassis 19 through a right arm 14 and a left arm 16, lower joint motors 65 and 95 disposed in the right arm 14 and the left arm 16 and varying vehicle height, a travel control module 81 controlling the motors 34 and 36 so as to follow calculated accelerations, and a posture control module 82 controlling the lower joint motors 65 and 95 to lower the vehicle height and change a position of a center of mass of the body 12 with respect to an axle in a front-back direction in accordance with the accelerations when the accelerations exceeds a certain range.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 1, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8160794
    Abstract: An inverted wheel type moving body that can enhance convenience and a method of controlling the same. The inverted wheel type moving body includes a right chassis and a left chassis rotationally supporting a right driving wheel and a left driving wheel, motors rotationally driving the right driving wheel and the left driving wheel, a body rotatably supported on the right chassis and the left chassis through a right arm and a left arm, a pressure-sensitive sensor provided to judge whether a transportation object dismounts, and a control unit controlling the motors to reduce velocity upon judgment that the transportation object dismounts based on the output from the pressure-sensitive sensor when the moving body travels faster than a certain velocity, in which overturn preventing operation is executed after an absolute value of the velocity is lower than a threshold value.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: April 17, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8155828
    Abstract: A control method is proposed for a traveling dolly. The traveling dolly may include wheels driven by motors and a body supported by the wheels. The traveling dolly may further include a control computer commanding control command value to the motors, and a centroid of the body positioning above a rotation axis of the wheels. The control method may include the control computer estimating external force moment, which is a moment of inertia around the rotation axis of the wheels generated by external force applied on the body; a tilt angle of the body, which makes a gravity moment around the rotation axis of the centroid of the body balance with the external force moment, being set as a target body tilt angle; and based on the target body tilt angle, calculating a torque command value for the motors.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 10, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshio Fuwa, Issei Nakashima
  • Patent number: 8038148
    Abstract: A meander control is performed by using: a guide roller that alters the conveying direction of a aluminum sheet conveyed along a conveying path; a first edge sensor that detects the amount of meandering at a first detection position that is upstream of the guide roller; a second edge sensor that detects the amount of meandering at a second detection position between the first edge sensor and the guide roller; and a control device that calculates an error contained in a first gain of a first feedforward model on the basis of a detected value from the first edge sensor and a detected value from the second edge sensor, and corrects a second gain of a second feedforward model by the calculated error, and then calculates a guide position-estimated amount of meandering on the basis of the second feedforward model and the detected value from the second edge sensor.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: October 18, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Toshio Fuwa
  • Patent number: 8000925
    Abstract: A moving body with a tilt angle estimating mechanism capable of estimating a tilt angle of a vehicle body with high accuracy. The moving body includes: an acceleration sensor for detecting an acceleration in two axial directions; a gyro sensor for detecting an angular velocity of a vehicle body; and a tilt angle estimating mechanism for estimating a tilt angle of the vehicle body. The tilt angle estimating mechanism includes: a device for estimating a tilt angle in response to the acceleration sensor based on the acceleration detected by the acceleration sensor; a device for estimating a second tilt angle based on the angular velocity detected by the gyro sensor; and a device for estimating a tilt angle with a linear model equation of the moving body being regarded as an observer, in accordance with the tilt angle based on the acceleration sensor and the tilt angle based on the gyro sensor.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 16, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshio Fuwa, Issei Nakashima
  • Publication number: 20110024546
    Abstract: A web meandering correction system (1) includes: an edge detector (2) that detects an edge position signal of a web; an HPF processing unit (3) that executes a high-pass filtering process on the edge position signal using a predetermined lower limit frequency as a reference; a high-frequency noise analyzing unit (4) that analyzes high-frequency noise that has passed through the HPF processing unit (3); an LPF processing unit (5) that executes a low-pass filtering process on the edge position signal using a predetermined upper limit frequency as a reference; a coefficient setting unit (6) that sets a coefficient that determines the characteristics of the low-pass filtering process on the basis of a result of analysis by the high-frequency noise analyzing unit (4); and a meandering correction unit (7) that corrects meandering of the web on the basis of information acquired by the LPF processing unit (5).
    Type: Application
    Filed: March 3, 2009
    Publication date: February 3, 2011
    Inventor: Toshio Fuwa
  • Publication number: 20110010066
    Abstract: An inverted wheel type moving body that can enhance convenience and a method of controlling the same. The inverted wheel type moving body includes a right chassis and a left chassis rotationally supporting a right driving wheel and a left driving wheel, motors rotationally driving the right driving wheel and the left driving wheel, a body rotatably supported on the right chassis and the left chassis through a right arm and a left arm, a pressure-sensitive sensor provided to judge whether a transportation object dismounts, and a control unit controlling the motors to reduce velocity upon judgment that the transportation object dismounts based on the output from the pressure-sensitive sensor when the moving body travels faster than a certain velocity, in which overturn preventing operation is executed after an absolute value of the velocity is lower than a threshold value.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 13, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Toshio Fuwa
  • Publication number: 20110000948
    Abstract: A film transport apparatus includes: an edge sensor that detects a lateral position deviation of a film; a lateral position correction device that corrects a lateral position of the film with a guide roll; a tension sensor that detects tensions applied respectively near left and right ends of the film; and a control unit that executes feedback control such that the lateral position correction device is controlled on the basis of the lateral position deviation detected by the edge sensor so that the film is located at a target position. The control unit changes the feedback control based on a left and right tension difference, which is a difference between the tension applied near the left end of the film and the tension applied near the right end of the film, the tensions being detected by the tension sensor.
    Type: Application
    Filed: March 4, 2009
    Publication date: January 6, 2011
    Inventor: Toshio Fuwa
  • Patent number: 7823676
    Abstract: The present invention provides, in connection with a coaxial two-wheeled inverted pendulum type moving vehicle, a technique which allows sudden braking without making a vehicle body to tilt significantly backward. The coaxial two-wheeled inverted pendulum type moving vehicle of the present invention comprises a pair of wheels, a chassis for supporting the pair of wheels coaxially and rotatably, wheel actuators for rotating the wheels with respect to the chassis, a vehicle body supported by the chassis, and an inverted pendulum control unit for controlling the wheel actuators so as to maintain the balanced state of the chassis. In this moving vehicle, the vehicle body is shiftable supported by the chassis in a manner that the vehicle body may shift in a direction parallel to the moving direction of the moving vehicle with respect to the chassis.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: November 2, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Yamada, Masaaki Yamaoka, Toshio Fuwa, Mitsuo Koide
  • Publication number: 20100268446
    Abstract: A traveling device 10 includes ground touching detection means to detect a ground touching state in which a ground touching member touches a road surface, and control means to perform inversion control by controlling the driving of a wheel. When a ground touching state of the ground touching member is detected by the ground touching detection means, the control means suspends the inversion control. Further, when the start of braking is detected by the braking detection means and a ground touching state of the ground touching member is detected by the ground touching means, the control means may suspend the inversion control.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 21, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshio FUWA, Yushi TAKEUCHI, Takashi IZUO
  • Publication number: 20100174476
    Abstract: An inverted wheel type moving body according to the present invention includes a right chassis 17 and a left chassis 19 rotationally supporting wheels, motors 34 and 36 rotationally driving a right driving wheel 18 and a left driving wheel 20, a body 12 rotatably supported on the right chassis 17 and the left chassis 19 through a right arm 14 and a left arm 16, lower joint motors 65 and 95 disposed in the right arm 14 and the left arm 16 and varying vehicle height of the moving body 100, and a control unit 80 that controls the lower joint motors 65 and 95 to lower the vehicle height based on a fail signal 88 output when the inverted wheel type moving body is in an abnormal state.
    Type: Application
    Filed: April 9, 2008
    Publication date: July 8, 2010
    Inventor: Toshio FUWA
  • Publication number: 20100108733
    Abstract: A method of controlling the conveyance of a web comprises a web measuring step of measuring the conveyance speed (V) and the tension force (T) of the web (2) during its conveyance, a slip amount calculation step of calculating the slip amount (W) of the web (2) relative to a guide roll (14) from the values of the conveying speed (V) and the tension force (T) of the web (2) measured in the web measuring step, and a web control step of controlling the tension force of the web (2) during its conveyance so that the slip amount (W) of the web (2) relative to the guide roll (14) calculated in the slip amount calculation step is equal to a preset target slip amount (W1). Consequently, the slip of the web is accurately controlled, whereby the lateral displacement of the web can be reduced.
    Type: Application
    Filed: April 7, 2008
    Publication date: May 6, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Toshio Fuwa
  • Publication number: 20100023220
    Abstract: To enable execution of processing for eliminating a slip by detecting the occurrence of a slip between rotary bodies and a road surface.
    Type: Application
    Filed: December 3, 2007
    Publication date: January 28, 2010
    Inventors: Issei Nakashima, Toshio Fuwa
  • Patent number: 7640086
    Abstract: A running object includes a body, at least two drive wheels disposed on a first axle, and at least one driven wheel disposed on a second axle. The running object is capable of switching between a standing posture in which the driven wheel is suspended in the air and a stable posture in which the driven wheel is placed on the ground. The running object includes a storing device that stores a target incline pattern that chronologically describes the target incline angle of the body during a transition from the standing posture to the stable posture; a detecting device that detects the incline angle and/or the incline angular velocity of the body; a torque calculating device that calculates torque based on a deviation between the target incline pattern stored in the storing device and a detection value detected by the detecting device; and an actuator for applying the torque calculated by the calculating device to the drive wheels.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: December 29, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Issei Nakashima, Toshio Fuwa, Yoshikazu Motozono
  • Publication number: 20090319124
    Abstract: An inverted wheel type moving body according to the present invention includes a right chassis 17 and a left chassis 19 rotationally supporting wheels, motors 34 and 36 rotationally driving a right driving wheel 18 and a left driving wheel 20, a body 12 rotatably supported on the right chassis 17 and the left chassis 19 through a right arm 14 and a left arm 16, lower joint motors 65 and 95 disposed in the right arm 14 and the left arm 16 and varying vehicle height, a travel control module 81 controlling the motors 34 and 36 so as to follow calculated accelerations, and a posture control module 82 controlling the lower joint motors 65 and 95 to lower the vehicle height and change a position of a center of mass of the body 12 with respect to an axle in a front-back direction in accordance with the accelerations when the accelerations exceeds a certain range.
    Type: Application
    Filed: April 24, 2008
    Publication date: December 24, 2009
    Inventor: Toshio FUWA