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).
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Patent number: 10919600Abstract: 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: GrantFiled: September 13, 2018Date of Patent: February 16, 2021Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Hirokazu Shirakawa, Taichi Yanaoka
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Patent number: 10870355Abstract: 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: GrantFiled: November 15, 2018Date of Patent: December 22, 2020Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato Tanaka, Yasuo Hosaka, Hiromi Hagiwara, Teruaki Kawahigashi, Yuto Kajiya, Taichi Yanaoka
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Patent number: 10857894Abstract: 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: GrantFiled: July 20, 2016Date of Patent: December 8, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Satoru Shimizu
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Patent number: 10778192Abstract: 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: GrantFiled: October 22, 2018Date of Patent: September 15, 2020Assignee: ANRITSU CORPORATIONInventor: Yasuo Hosaka
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Patent number: 10749451Abstract: 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: GrantFiled: March 1, 2019Date of Patent: August 18, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Yuuji Ebinuma, Taichi Yanaoka, Hirokazu Shirakawa
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Patent number: 10577048Abstract: 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: GrantFiled: January 26, 2018Date of Patent: March 3, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
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Patent number: 10562401Abstract: 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: GrantFiled: September 28, 2017Date of Patent: February 18, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Satoru Shimizu
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Publication number: 20190280628Abstract: 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: ApplicationFiled: March 1, 2019Publication date: September 12, 2019Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuo HOSAKA, Yuuji EBINUMA, Taichi YANAOKA, Hirokazu SHIRAKAWA
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Publication number: 20190131957Abstract: 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: ApplicationFiled: October 22, 2018Publication date: May 2, 2019Inventor: Yasuo HOSAKA
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Publication number: 20190092424Abstract: 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: ApplicationFiled: September 13, 2018Publication date: March 28, 2019Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuo HOSAKA, Hirokazu SHIRAKAWA, Taichi YANAOKA
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Publication number: 20190084426Abstract: 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: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato TANAKA, Yasuo HOSAKA, Hiromi HAGIWARA, Teruaki KAWAHIGASHI, Yuto KAJIYA, Taichi YANAOKA
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Patent number: 10137787Abstract: 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: GrantFiled: November 3, 2016Date of Patent: November 27, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Taichi Yanaoka
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Patent number: 10099558Abstract: 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: GrantFiled: January 21, 2016Date of Patent: October 16, 2018Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato Tanaka, Yasuo Hosaka, Hirokazu Shirakawa, Taichi Yanaoka
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Publication number: 20180222332Abstract: 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: ApplicationFiled: July 20, 2016Publication date: August 9, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuo HOSAKA, Satoru SHIMIZU
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Patent number: 10040508Abstract: 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: GrantFiled: May 16, 2017Date of Patent: August 7, 2018Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
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Publication number: 20180194430Abstract: 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: ApplicationFiled: January 26, 2018Publication date: July 12, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
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Publication number: 20180093588Abstract: 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: ApplicationFiled: September 28, 2017Publication date: April 5, 2018Applicant: TAIYO YUDEN CO., LTD.Inventors: Yasuo HOSAKA, Satoru SHIMIZU
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Patent number: 9902462Abstract: 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: GrantFiled: October 13, 2015Date of Patent: February 27, 2018Assignee: TAIYO YUDEN CO., LTD.Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
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Patent number: 9896153Abstract: 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: GrantFiled: June 13, 2014Date of Patent: February 20, 2018Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
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Publication number: 20170247079Abstract: 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: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu