Patents by Inventor Yasuo Hosaka

Yasuo Hosaka 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: 20190280628
    Abstract: An embodiment of this invention relates to a motor driving control apparatus for a moto-assisted vehicle, which includes a driving unit configured to drive a motor, and a controller configured to determine a regeneration amount based on a first speed of a vehicle that moves by the motor driven by the driving unit, and control the driving unit according to the regeneration amount, wherein the first speed is a speed at a first timing when it is detected that a brake of the vehicle is changed to OFF, or is determined based on temporal change in an acceleration of the vehicle.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 12, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Yuuji EBINUMA, Taichi YANAOKA, Hirokazu SHIRAKAWA
  • Publication number: 20190131957
    Abstract: A filter coefficient calculation device includes a function unit that has a plurality of functions to be executed by an FIR filter, a function selection unit that selects one or a plurality of functions from among the plurality of functions, and a filter coefficient calculation unit that calculates a filter coefficient in the selected one or plurality of functions, and is configured such that the function unit includes a first transfer function calculation unit, a second transfer function calculation unit, and a third transfer function calculation unit which calculate a transfer function of the FIR filter in the respective functions, and the filter coefficient calculation unit performs inverse Fourier transform on the transfer function in the selected one function or a product of the transfer functions in the plurality of functions to obtain an impulse response of the FIR filter and calculates the impulse response as the filter coefficient.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 2, 2019
    Inventor: Yasuo HOSAKA
  • Publication number: 20190092424
    Abstract: A motor driving control apparatus for a motor-assisted vehicle such as a motor-assisted bicycle includes: an inverter configured to drive a motor; and a controller configured to control the inverter to start regeneration after lapse of a first time period since a second predetermined time period elapsed or gradually increase a regeneration amount, when a state that an acceleration of a vehicle on which the motor is embodied is negative and equal to or less than a first predetermined value continues for the second predetermined time period.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 28, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Hirokazu SHIRAKAWA, Taichi YANAOKA
  • Publication number: 20190084426
    Abstract: This motor driving control apparatus has (A) an inverter unit configured to drive a motor; (B) a separation switch configured to separate a power source from the inverter unit; and (C) a controller configured to instruct the separation switch to separate the power source from the inverter unit and control the inverter unit to perform switching according to a speed and a braking target torque, upon detecting an event that braking should be performed without passing a regenerative current to the power source from the inverter unit. By introducing the separation switch that operates as described above, it becomes possible to perform control so as to consume the power by the motor itself without passing the regenerative current to the power source such as a battery.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Yasuo HOSAKA, Hiromi HAGIWARA, Teruaki KAWAHIGASHI, Yuto KAJIYA, Taichi YANAOKA
  • Patent number: 10137787
    Abstract: A regenerative controller for an electric motor includes: a wheel rotation detection unit provided on a vehicle and detecting a rotation amount of a wheel that is driven via a crank rotated by human power; a crank rotation detection unit that detects a rotation amount of the crank; and a controller that calculates a first value based on the rotation amount of the wheel, a second value based on the rotation amount of the crank, and a control parameter based on at least the second value among the first value and the second value for regenerative control of a power storage device regeneratively charged by an electric motor that supplies driving power to the wheel, the controller controlling a regeneration amount of the electric motor in accordance with the control parameter.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: November 27, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Taichi Yanaoka
  • Patent number: 10099558
    Abstract: A motor driving apparatus includes a driving unit configured to drive a motor according to a torque inputted by a rotation input from a human being; and a controller configured to control driving of the driving unit according to a relationship between an accumulated value of first amounts that correspond to the rotation input from the human being and an accumulated value of second amounts that correspond to rotation of a rotating object driven by the motor. The controller may be further configured to cause the driving unit to suppress driving of the motor when an accumulated difference that is calculated by subtracting the accumulated value of the second amounts from the accumulated value of the first amounts is equal to or less than a predetermined threshold.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 16, 2018
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Hirokazu Shirakawa, Taichi Yanaoka
  • Publication number: 20180222332
    Abstract: This control apparatus includes (A) a first connecting part, which is connected with a driving control apparatus for controlling driving of a power unit for assisting a human power or with the power unit, and through which a current relating to charging and discharging of an electrical power storage device flows, (B) a second connecting part, which is provided separately from the first connecting part, and through which a current relating to charging to the electrical power storage device flows via an electrical connection, and (C) a controller to control charging and discharging of the electrical power storage device, which are performed by using a current, which flows in the first connecting part and/or the second connecting part.
    Type: Application
    Filed: July 20, 2016
    Publication date: August 9, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Satoru SHIMIZU
  • Patent number: 10040508
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: August 7, 2018
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20180194430
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of the pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a backward rotation amount of the pedal while the rotation direction of the pedal is backwards, the backward rotation amount being obtained by the pedal rotation sensor.
    Type: Application
    Filed: January 26, 2018
    Publication date: July 12, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Publication number: 20180093588
    Abstract: A motor driving control apparatus in the embodiment includes: a first controller configured to control powering and regeneration of a motor; a second controller configured to control the first controller; and assistant circuitry configured to activate the second controller in a stop state, when a counter electromotive force caused by the motor, which is rotated without control by the first controller, satisfies a predetermined condition, before a power-on instruction for the motor driving control apparatus is made or in a state where the power-on instruction for the motor driving control apparatus is not made.
    Type: Application
    Filed: September 28, 2017
    Publication date: April 5, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Satoru SHIMIZU
  • Patent number: 9902462
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: February 27, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Patent number: 9896153
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: February 20, 2018
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20170247079
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Application
    Filed: May 16, 2017
    Publication date: August 31, 2017
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20170129341
    Abstract: A regenerative controller for an electric motor includes: a wheel rotation detection unit provided on a vehicle and detecting a rotation amount of a wheel that is driven via a crank rotated by human power; a crank rotation detection unit that detects a rotation amount of the crank; and a controller that calculates a first value based on the rotation amount of the wheel, a second value based on the rotation amount of the crank, and a control parameter based on at least the second value among the first value and the second value for regenerative control of a power storage device regeneratively charged by an electric motor that supplies driving power to the wheel, the controller controlling a regeneration amount of the electric motor in accordance with the control parameter.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 11, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Taichi YANAOKA
  • Patent number: 9573569
    Abstract: A regenerative brake device for a vehicle includes a manual brake configured to apply a brake to a wheel of the vehicle by a manual operation of a brake lever; a motor configured to be coupled to a wheel of the vehicle, the motor being driven by a power from a battery, and also alternatively acting as a regenerative brake that charges the battery with an electromotive force of the motor; a brake sensor that detects a manual brake application point at which the manual brake is actuated from an operation amount of the brake lever; and a power control unit that performs regenerative power control for charging the battery with the electromotive force of the motor based on an output signal from the brake sensor so that the regenerative brake is generated in accordance with the operation amount of the brake lever.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 21, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Toshiyuki Kagawa
  • Patent number: 9428172
    Abstract: An appropriate motor control in accordance with a pedal operation of a driver is to be achieved. A motor drive control device according to the present invention is a motor drive control device for an electric power-assisted vehicle that has one-way clutches respectively provided for a motor drive system and for a pedal drive system. The motor drive control device according to the present invention includes: a first calculating part that calculates a pedal rotation conversion speed that is converted from a pedal rotation; and a second calculating part that calculates a second target torque for a motor based on the pedal rotation conversion speed, during a period in which a first target torque derived from a pedal torque is not detected.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: August 30, 2016
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Kazuo Asanuma, Yasuo Hosaka, Kuniaki Kawagoe
  • Publication number: 20160221445
    Abstract: A motor driving apparatus includes a driving unit configured to drive a motor according to a torque inputted by a rotation input from a human being; and a controller configured to control driving of the driving unit according to a relationship between an accumulated value of first amounts that correspond to the rotation input from the human being and an accumulated value of second amounts that correspond to rotation of a rotating object driven by the motor. The controller may be further configured to cause the driving unit to suppress driving of the motor when an accumulated difference that is calculated by subtracting the accumulated value of the second amounts from the accumulated value of the first amounts is equal to or less than a predetermined threshold.
    Type: Application
    Filed: January 21, 2016
    Publication date: August 4, 2016
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Yasuo HOSAKA, Hirokazu SHIRAKAWA, Taichi YANAOKA
  • Publication number: 20160202710
    Abstract: A motor driving control apparatus in embodiments has a controller configured to control driving of a motor, and an instruction unit configured to cause the controller to suppress the driving of the motor when detecting a phenomenon that a state in which fluctuation of a pedal input torque is within a predetermined range continues for a period for the predetermined number of pedal rotations or more. The suppression of the driving of the motor may include stop of the driving of the motor, and the pedal input torque may be a value corrected by an offset value. Furthermore, the motor driving control apparatus may be used by an electrically assisted vehicle.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 14, 2016
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Kazuo ASANUMA, Taichi YANAOKA
  • Publication number: 20160121963
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 5, 2016
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Yasuo HOSAKA, Kazuo ASANUMA, Hiromi HAGIWARA, Satoru SHIMIZU
  • Publication number: 20160107719
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 21, 2016
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu