Patents by Inventor Tsubasa SAKUISHI
Tsubasa SAKUISHI 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: 11456643Abstract: A rotating electric machine includes a rotor rotatably supported and also including a magnet portion; a stator including a stator winding; and a plunger configured to displace the rotor and the stator relative to one another along an axial direction of the rotating electric machine. The stator includes a slotless structure in which at least one of no magnetic teeth and slot is provided. Thus, an attracting force acting between the magnet portion and the stator is weakened, thereby the rotor and the stator are easily displaceable relative to each other by the plunger.Type: GrantFiled: October 1, 2019Date of Patent: September 27, 2022Assignee: DENSO CORPORATIONInventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi, Yuki Takahashi
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Publication number: 20220224257Abstract: A drive system establishes a normal state in which a first switch is ON and a gang switch is OFF, in the case where it is determined that there is no abnormality in the state of a first rotating body driven by a first motor. In this normal state, the first motor is driven by a first inverter, while a second motor is driven by a second inverter. It the case where it is determined that there is abnormality in the state of the first rotating body, a first countermeasure state is established in which the first switch is OFF and the gang switch is ON. In this first countermeasure state, the second motor is driven by both the first inverter and the second inverter.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Applicant: DENSO CORPORATIONInventors: Minoru ISHIDA, Tsubasa SAKUISHI, Yuki TAKAHASHI
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Patent number: 11190075Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.Type: GrantFiled: September 30, 2019Date of Patent: November 30, 2021Assignee: DENSO CORPORATIONInventors: Ryotaro Okamoto, Tsubasa Sakuishi
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Patent number: 10886869Abstract: A control apparatus is applied to a vehicle including (i) a rotating electrical machine and (ii) a wheel speed sensor detecting a wheel speed. The control apparatus sets a rotation angle of the rotating electrical machine based on an estimated value of the rotation angle which is estimated based on a detection value of the wheel speed sensor.Type: GrantFiled: August 6, 2019Date of Patent: January 5, 2021Assignee: DENSO CORPORATIONInventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi, Yuki Takahashi
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Patent number: 10875418Abstract: In a charging control apparatus, a supply power requestor requests an external power source to output supply power having a constant voltage and a constant current. A voltage conversion instructor instructs a voltage conversion device to perform voltage conversion of the supply power from the external power source such that converted supply power has a charging voltage and a charging current that are respectively within allowable charging-voltage range and allowable charging-current range. The voltage conversion instructor instructs the voltage conversion device to output the converted supply power to the power storage to thereby charge the power storage.Type: GrantFiled: July 8, 2019Date of Patent: December 29, 2020Assignee: DENSO CORPORATIONInventors: Minoru Ishida, Naoki Katayama, Tsubasa Sakuishi
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Publication number: 20200106338Abstract: A rotating electric machine includes a rotor rotatably supported and also including a magnet portion; a stator including a stator winding; and a plunger configured to displace the rotor and the stator relative to one another along an axial direction of the rotating electric machine. The stator includes a slotless structure in which at least one of no magnetic teeth and slot is provided. Thus, an attracting force acting between the magnet portion and the stator is weakened, thereby the rotor and the stator are easily displaceable relative to each other by the plunger.Type: ApplicationFiled: October 1, 2019Publication date: April 2, 2020Applicant: DENSO CORPORATIONInventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI, Yuki TAKAHASHI
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Publication number: 20200106320Abstract: A drive system to be applied to a vehicle is provided which includes a chargeable and dischargeable electric storage device, and in which the electric storage device is capable of being charged by power supply from an external power supply outside the vehicle. The drive system includes a rotating electrical machine, an inverter connected to the rotating electrical machine, a converter configured to transform a power supply voltage of the electric storage device and output the transformed power supply voltage to the inverter, and charging wirings which are capable of being electrically connected to the external power supply. The charging wirings are connected to connection points between the inverter and the converter.Type: ApplicationFiled: September 30, 2019Publication date: April 2, 2020Applicant: DENSO CORPORATIONInventors: Ryotaro OKAMOTO, Tsubasa SAKUISHI
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Publication number: 20200052639Abstract: A control apparatus is applied to a vehicle including (i) a rotating electrical machine and (ii) a wheel speed sensor detecting a wheel speed. The control apparatus sets a rotation angle of the rotating electrical machine based on an estimated value of the rotation angle which is estimated based on a detection value of the wheel speed sensor.Type: ApplicationFiled: August 6, 2019Publication date: February 13, 2020Applicant: DENSO CORPORATIONInventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI, Yuki TAKAHASHI
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Publication number: 20200009980Abstract: In a charging control apparatus, a supply power requestor requests an external power source to output supply power having a constant voltage and a constant current. A voltage conversion instructor instructs a voltage conversion device to perform voltage conversion of the supply power from the external power source such that converted supply power has a charging voltage and a charging current that are respectively within allowable charging-voltage range and allowable charging-current range. The voltage conversion instructor instructs the voltage conversion device to output the converted supply power to the power storage to thereby charge the power storage.Type: ApplicationFiled: July 8, 2019Publication date: January 9, 2020Applicant: DENSO CORPORATIONInventors: Minoru ISHIDA, Naoki KATAYAMA, Tsubasa SAKUISHI
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Publication number: 20180009319Abstract: When an acceleration degree of a vehicle in a state of an electric motor generating torque as motive power is small compared to the acceleration degree of the vehicle in a state of being propelled using that torque, a user is notified by displaying a warning on a display which is a notification device of the vehicle.Type: ApplicationFiled: March 8, 2016Publication date: January 11, 2018Applicant: DENSO CORPORATIONInventors: Tsubasa SAKUISHI, Masakazu YAMAMOTO