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).
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Patent number: 8967442Abstract: 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: GrantFiled: March 4, 2009Date of Patent: March 3, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8800833Abstract: 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: GrantFiled: March 3, 2009Date of Patent: August 12, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8447506Abstract: 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: GrantFiled: March 31, 2010Date of Patent: May 21, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Fuwa, Yushi Takeuchi, Takashi Izuo
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Patent number: 8371410Abstract: 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: GrantFiled: April 9, 2008Date of Patent: February 12, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8224524Abstract: 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: GrantFiled: December 3, 2007Date of Patent: July 17, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Issei Nakashima, Toshio Fuwa
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Patent number: 8170781Abstract: 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: GrantFiled: April 24, 2008Date of Patent: May 1, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8160794Abstract: 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: GrantFiled: June 24, 2008Date of Patent: April 17, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8155828Abstract: 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: GrantFiled: June 27, 2006Date of Patent: April 10, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Fuwa, Issei Nakashima
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Patent number: 8038148Abstract: 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: GrantFiled: May 5, 2009Date of Patent: October 18, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventor: Toshio Fuwa
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Patent number: 8000925Abstract: 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: GrantFiled: September 27, 2007Date of Patent: August 16, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Fuwa, Issei Nakashima
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Publication number: 20110024546Abstract: 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: ApplicationFiled: March 3, 2009Publication date: February 3, 2011Inventor: Toshio Fuwa
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Publication number: 20110010066Abstract: 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: ApplicationFiled: June 24, 2008Publication date: January 13, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Toshio Fuwa
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Publication number: 20110000948Abstract: 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: ApplicationFiled: March 4, 2009Publication date: January 6, 2011Inventor: Toshio Fuwa
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Patent number: 7823676Abstract: 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: GrantFiled: February 1, 2007Date of Patent: November 2, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koji Yamada, Masaaki Yamaoka, Toshio Fuwa, Mitsuo Koide
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Publication number: 20100268446Abstract: 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: ApplicationFiled: March 31, 2010Publication date: October 21, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshio FUWA, Yushi TAKEUCHI, Takashi IZUO
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Publication number: 20100174476Abstract: 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: ApplicationFiled: April 9, 2008Publication date: July 8, 2010Inventor: Toshio FUWA
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Publication number: 20100108733Abstract: 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: ApplicationFiled: April 7, 2008Publication date: May 6, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Toshio Fuwa
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Publication number: 20100023220Abstract: To enable execution of processing for eliminating a slip by detecting the occurrence of a slip between rotary bodies and a road surface.Type: ApplicationFiled: December 3, 2007Publication date: January 28, 2010Inventors: Issei Nakashima, Toshio Fuwa
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Patent number: 7640086Abstract: 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: GrantFiled: September 6, 2006Date of Patent: December 29, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Issei Nakashima, Toshio Fuwa, Yoshikazu Motozono
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Publication number: 20090319124Abstract: 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: ApplicationFiled: April 24, 2008Publication date: December 24, 2009Inventor: Toshio FUWA