Patents by Inventor Yoshinori Oono
Yoshinori Oono 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: 8281886Abstract: An electric motor control device includes an inverter that supplies an output of a primary-side DC power supply to an electric motor to control driving of the electric motor; a converter that includes a voltage increasing power supply device that increases a voltage of the primary-side DC power supply to supply the inverter with the increased voltage as a secondary voltage, and a regenerative power supply device that reversely supplies regenerative power from the inverter to the primary-side DC power supply; a secondary-side target voltage determination unit; a converter control unit; and an electric motor control unit.Type: GrantFiled: October 31, 2008Date of Patent: October 9, 2012Assignee: Aisin AW Co., Ltd.Inventors: Subrata Saha, Takashi Yoshida, Daisuke Ogino, Jin Izawa, Yoshinori Oono
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Patent number: 8002057Abstract: A hybrid drive system includes an input member connected to an engine; an output member connected to a wheel; a first rotating electric machine; a second rotating electric machine; a differential gearing; a controller that controls the first rotating electric machine and the second rotating electric machine; and an electric power supplier that supplies the first rotating electric machine and the second rotating electric machine with electric power.Type: GrantFiled: March 6, 2009Date of Patent: August 23, 2011Assignee: Aisin AW Co., Ltd.Inventors: Kazuhiro Tanaka, Jin Izawa, Yoshinori Oono, Kazuo Aoki
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Patent number: 7999499Abstract: A rotating electrical machine control system includes a rotating electrical machine, a frequency conversion portion, a voltage conversion portion, a torque limitation portion, and an abnormality detection portion. The torque limitation portion limits generation of a positive torque in a region of less than a rotational speed lower limit threshold value where a rotational speed of the rotating electrical machine is less than zero, and sets a region in which the positive torque is generated to a region of the rotational speed lower limit threshold value or greater, and the torque limitation portion limits generation of a negative torque in a region of greater than a rotational speed upper limit threshold value where the rotational speed of the rotating electrical machine is greater than zero, and sets a region in which the negative torque is generated to a region of the rotational speed upper limit threshold value or less.Type: GrantFiled: March 6, 2009Date of Patent: August 16, 2011Assignee: Aisin AW Co., Ltd.Inventors: Kazuhiro Tanaka, Jin Izawa, Yoshinori Oono, Kazuo Aoki
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Patent number: 7952309Abstract: A rotating electrical machine control device includes an inverter; a resolver; a unit; a three-phase/two-phase modulation switching unit; and a motor control unit that switches to a two-phase modulation in a specific region where an electric noise given to the resolver by a rotating electrical machine is large, even in a region where the modulation ratio is smaller than the three-phase/two-phase modulation switching boundary.Type: GrantFiled: January 9, 2009Date of Patent: May 31, 2011Assignee: Aisin A W Co., Ltd.Inventors: Keisuke Nishimura, Masuho Sakakibara, Yoshinari Nakagawa, Yoshinori Oono
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Patent number: 7928686Abstract: An electric motor control device includes a direct current power source; an inverter interposed between an electric motor and the direct current power source, the inverter device controlling an exchange of electric power therebetween; an inverter control unit that generates PWM pulses having a duty ratio corresponding to voltage command signals and sends the PWM pulses to the inverter in order to switch the inverter; a frequency changing unit that changes a carrier frequency of the PWM pulses generated by the inverter control unit in a manner corresponding to a frequency control signal; and a motor control unit.Type: GrantFiled: October 31, 2008Date of Patent: April 19, 2011Assignee: Aisin AW Co., Ltd.Inventors: Subrata Saha, Isao Fujiwara, Keisuke Nishimura, Kazuma Hasegawa, Yoshinori Oono, Seiichi Kinugasa
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Publication number: 20100140003Abstract: An electric motor control device includes an inverter that supplies an output of a primary-side DC power supply to an electric motor to control driving of the electric motor; a converter that includes a voltage increasing power supply device that increases a voltage of the primary-side DC power supply to supply the inverter with the increased voltage as a secondary voltage, and a regenerative power supply device that reversely supplies regenerative power from the inverter to the primary-side DC power supply; a secondary-side target voltage determination unit; a converter control unit; and an electric motor control unit.Type: ApplicationFiled: October 31, 2008Publication date: June 10, 2010Applicant: AISIN AW CO., LTD.Inventors: Subrata Saha, Takashi Yoshida, Daisuke Ogino, Jin Izawa, Yoshinori Oono
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Publication number: 20090242293Abstract: A rotating electrical machine control system includes a rotating electrical machine, a frequency conversion portion, a voltage conversion portion, a torque limitation portion, and an abnormality detection portion. The torque limitation portion limits generation of a positive torque in a region of less than a rotational speed lower limit threshold value where a rotational speed of the rotating electrical machine is less than zero, and sets a region in which the positive torque is generated to a region of the rotational speed lower limit threshold value or greater, and the torque limitation portion limits generation of a negative torque in a region of greater than a rotational speed upper limit threshold value where the rotational speed of the rotating electrical machine is greater than zero, and sets a region in which the negative torque is generated to a region of the rotational speed upper limit threshold value or less.Type: ApplicationFiled: March 6, 2009Publication date: October 1, 2009Applicant: AISIN AW CO., LTD.Inventors: Kazuhiro TANAKA, Jin IZAWA, Yoshinori OONO, Kazuo AOKI
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Publication number: 20090236160Abstract: A hybrid drive system includes an input member connected to an engine; an output member connected to a wheel; a first rotating electric machine; a second rotating electric machine; a differential gearing; a controller that controls the first rotating electric machine and the second rotating electric machine; and an electric power supplier that supplies the first rotating electric machine and the second rotating electric machine with electric power.Type: ApplicationFiled: March 6, 2009Publication date: September 24, 2009Applicant: AISIN AW CO., LTD.Inventors: Kazuhiro Tanaka, Jin Izawa, Yoshinori Oono, Kazuo Aoki
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Publication number: 20090195197Abstract: A rotating electrical machine control device includes an inverter; a resolver; a unit; a three-phase/two-phase modulation switching unit; and a motor control unit that switches to a two-phase modulation in a specific region where an electric noise given to the resolver by a rotating electrical machine is large, even in a region where the modulation ratio is smaller than the three-phase/two-phase modulation switching boundary.Type: ApplicationFiled: January 9, 2009Publication date: August 6, 2009Applicant: AISIN AW CO., LTD.Inventors: Keisuke Nishimura, Masuho Sakakibara, Yoshinari Nakagawa, Yoshinori Oono
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Publication number: 20090115362Abstract: An electric motor control device includes a direct current power source; an inverter interposed between an electric motor and the direct current power source, the inverter device controlling an exchange of electric power therebetween; an inverter control unit that generates PWM pulses having a duty ratio corresponding to voltage command signals and sends the PWM pulses to the inverter in order to switch the inverter; a frequency changing unit that changes a carrier frequency of the PWM pulses generated by the inverter control unit in a manner corresponding to a frequency control signal; and a motor control unit.Type: ApplicationFiled: October 31, 2008Publication date: May 7, 2009Applicant: AISIN AW CO., LTD.Inventors: Subrata Saha, Isao Fujiwara, Keisuke Nishimura, Kazuma Hasegawa, Yoshinori Oono, Seiichi Kinugasa
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Patent number: 7178619Abstract: A vehicle including an electrically powered machine, a parking gear mechanically connected to the electrically powered machine, a parking lock mechanism that locks the parking gear, a sensor that detects a rotor position of the electrically powered machine, and a controller that reads the rotor position when a parking range is selected and judges, on the basis of a change in the rotor position, whether a failure has occurred in the parking lock mechanism.Type: GrantFiled: September 13, 2004Date of Patent: February 20, 2007Assignee: Aisin AW Co., Ltd.Inventor: Yoshinori Oono
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Publication number: 20050082096Abstract: A vehicle including an electrically powered machine, a parking gear mechanically connected to the electrically powered machine, a parking lock mechanism that locks the parking gear, a sensor that detects a rotor position of the electrically powered machine, and a controller that reads the rotor position when a parking range is selected and judges, on the basis of a change in the rotor position, whether a failure has occurred in the parking lock mechanism.Type: ApplicationFiled: September 13, 2004Publication date: April 21, 2005Applicant: AISIN AW CO., LTD.Inventor: Yoshinori Oono