Patents by Inventor Toyoki Sugiyama
Toyoki Sugiyama 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: 11560170Abstract: An auxiliary power supply device includes an auxiliary power source and a booster circuit. The auxiliary power supply device is configured to be switched among a charging state, a holding state, and a discharging state. The auxiliary power source is configured to be switched between a serial connection mode and a parallel connection mode. The auxiliary power source is configured to perform boosting to supply power to the power supply target when the auxiliary power source is switched to the serial connection mode, and perform backup when the auxiliary power source is switched to the parallel connection mode.Type: GrantFiled: December 17, 2019Date of Patent: January 24, 2023Assignee: JTEKT CORPORATIONInventors: Toyoki Sugiyama, Satoshi Shinoda
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Patent number: 11404900Abstract: A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined.Type: GrantFiled: February 19, 2020Date of Patent: August 2, 2022Assignees: JTEKT CORPORATION, KYOHO MACHINE WORKS, LTD.Inventors: Takanori Onishi, Koji Nishi, Shinichi Sawada, Toyoki Sugiyama, Takumi Mio, Yukihiro Komatsubara, Satoshi Shinoda, Masafumi Kawano
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Patent number: 11345244Abstract: An auxiliary power supply device includes an auxiliary power supply; and an auxiliary power supply control unit configured to switch a mode of the auxiliary power supply to an output mode or a non-output mode when electric power is output from a main power supply to a drive motor. The auxiliary power supply control unit is configured to switch the mode to the non-output mode when a required power value required by the drive motor is equal to or smaller than a predetermined power value and to switch the mode to the output mode when the required power value is larger than the predetermined power value, the predetermined power value being set to a value smaller than outputtable electric power that is electric power outputtable from the main power supply.Type: GrantFiled: May 15, 2020Date of Patent: May 31, 2022Assignee: JTEKT CORPORATIONInventors: Toyoki Sugiyama, Koji Nishi, Shinichi Sawada, Takumi Mio, Fumihiko Sato, Satoshi Shinoda, Yukihiro Komatsubara
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Publication number: 20200369164Abstract: An auxiliary power supply device includes an auxiliary power supply; and an auxiliary power supply control unit configured to switch a mode of the auxiliary power supply to an output mode or a non-output mode when electric power is output from a main power supply to a drive motor. The auxiliary power supply control unit is configured to switch the mode to the non-output mode when a required power value required by the drive motor is equal to or smaller than a predetermined power value and to switch the mode to the output mode when the required power value is larger than the predetermined power value, the predetermined power value being set to a value smaller than outputtable electric power that is electric power outputtable from the main power supply.Type: ApplicationFiled: May 15, 2020Publication date: November 26, 2020Applicant: JTEKT CORPORATIONInventors: Toyoki SUGIYAMA, Koji NISHI, Shinichi SAWADA, Takumi MIO, Fumihiko SATO, Satoshi SHINODA, Yukihiro KOMATSUBARA
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Patent number: 10819141Abstract: A power steering system includes: a main power source; an auxiliary power source connected to the main power source via a power source switch; a charge circuit connected to the main power source via the power source switch and configured to charge the auxiliary power source on the basis of the main power source; a switching circuit that switches a power supply mode; and a unit that turns off the power source switch after the auxiliary power source is charged by the charge circuit until the voltage of the auxiliary power source becomes equal to or more than a predetermined voltage in the case where the voltage of the auxiliary power source is less than the predetermined voltage when a key switch for a vehicle is turned off.Type: GrantFiled: February 8, 2019Date of Patent: October 27, 2020Assignee: JTEKT CORPORATIONInventor: Toyoki Sugiyama
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Publication number: 20200283060Abstract: An auxiliary electric source device is provided on an electric feed path between a main electric source and an electric feed object of the main electric source. The auxiliary electric source device includes an auxiliary electric source. The electric feed object performs a minimal action of fulfilling a desired minimal function with electric feed from the auxiliary electric source when the main electric source has broken down. An electric source performance of the auxiliary electric source is set based on an electric power necessary for the minimal action.Type: ApplicationFiled: March 4, 2020Publication date: September 10, 2020Applicant: JTEKT CORPORATIONInventors: Satoshi SHINODA, Toyoki SUGIYAMA
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Publication number: 20200266656Abstract: A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined.Type: ApplicationFiled: February 19, 2020Publication date: August 20, 2020Applicants: JTEKT CORPORATION, KYOHO MACHINE WORKS, LTD.Inventors: Takanori ONISHI, Koji NISHI, Shinichi SAWADA, Toyoki SUGIYAMA, Takumi MIO, Yukihiro KOMATSUBARA, Satoshi SHINODA, Masafumi KAWANO
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Publication number: 20200207404Abstract: An auxiliary power supply device includes an auxiliary power source and a booster circuit. The auxiliary power supply device is configured to be switched among a charging state, a holding state, and a discharging state. The auxiliary power source is configured to be switched between a serial connection mode and a parallel connection mode. The auxiliary power source is configured to perform boosting to supply power to the power supply target when the auxiliary power source is switched to the serial connection mode, and perform backup when the auxiliary power source is switched to the parallel connection mode.Type: ApplicationFiled: December 17, 2019Publication date: July 2, 2020Applicant: JTEKT CORPORATIONInventors: Toyoki SUGIYAMA, Satoshi SHINODA
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Patent number: 10483777Abstract: An auxiliary power supply device includes: a plurality of channels of auxiliary power supplies; a charging circuit; and an auxiliary power supply switching circuit disposed between the charging circuit and positive electrode terminals of the plurality of channels of auxiliary power supplies and configured to switch one channel of auxiliary power supply connected to the charging circuit among the plurality of channels of auxiliary power supplies and to simultaneously switch one channel of auxiliary power supply connected to a power supply destination so as not to match the channel of auxiliary power supply connected to the charging circuit.Type: GrantFiled: January 11, 2018Date of Patent: November 19, 2019Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumihiko Satou, Toyoki Sugiyama, Masataka Okuda, Hidefumi Kamikawa
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Patent number: 10450000Abstract: An electric power steering system includes a vehicle speed sensor configured to detect a vehicle speed, a motor driving circuit configured to supply power to an electric motor, a main power supply and a capacitor that can supply power to a driving circuit, a charging circuit configured to charge the capacitor based on the main power supply, and an ECU for power source control that controls the charging circuit. The ECU for power source control drives the charging circuit to charge the capacitor only when the vehicle speed is lower than a first predetermined value and an inter-terminal voltage of the capacitor is lower than a second predetermined value.Type: GrantFiled: April 21, 2017Date of Patent: October 22, 2019Assignee: JTEKT CORPORATIONInventor: Toyoki Sugiyama
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Publication number: 20190252909Abstract: A power steering system includes: a main power source; an auxiliary power source connected to the main power source via a power source switch; a charge circuit connected to the main power source via the power source switch and configured to charge the auxiliary power source on the basis of the main power source; a switching circuit that switches a power supply mode; and a unit that turns off the power source switch after the auxiliary power source is charged by the charge circuit until the voltage of the auxiliary power source becomes equal to or more than a predetermined voltage in the case where the voltage of the auxiliary power source is less than the predetermined voltage when a key switch for a vehicle is turned off.Type: ApplicationFiled: February 8, 2019Publication date: August 15, 2019Applicant: JTEKT CORPORATIONInventor: Toyoki SUGIYAMA
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Publication number: 20190054951Abstract: A power source device includes a switching circuit configured to switch the power supply mode between a first power supply mode, in which power is supplied to a drive circuit for an electric motor by only a main power source, and a second power supply mode, in which power is supplied to the drive circuit utilizing both the main power source and an auxiliary power source. A control device includes: a first control unit that controls the switching circuit on the basis of a value that matches power consumption by the drive circuit; and a second control unit that switches the power supply mode to a second power supply mode by controlling the switching circuit during sailing stop.Type: ApplicationFiled: August 6, 2018Publication date: February 21, 2019Applicant: JTEKT CORPORATIONInventor: Toyoki SUGIYAMA
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Publication number: 20180331545Abstract: An auxiliary power supply apparatus includes a first switching circuit and a second switching circuit. The first switching circuit is disposed between a charging circuit and positive terminals of a plurality of auxiliary power supplies. The first switching circuit is configured to perform switching between or among the auxiliary power supplies such that at least one of the auxiliary power supplies is connected to the charging circuit, and the other auxiliary power supply or supplies is or are connected to a power supply destination. The second switching circuit is configured to perform switching between a parallel connection state and a series connection state. In the parallel connection state, the auxiliary power supplies are connected in parallel between a main power supply and the first switching circuit. In the series connection state, the auxiliary power supplies are connected in series between the main power supply and the first switching circuit.Type: ApplicationFiled: April 26, 2018Publication date: November 15, 2018Applicant: JTEKT CORPORATIONInventors: Toyoki SUGIYAMA, Fumihiko SATO
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Publication number: 20180205251Abstract: An auxiliary power supply device includes: a plurality of channels of auxiliary power supplies; a charging circuit; and an auxiliary power supply switching circuit disposed between the charging circuit and positive electrode terminals of the plurality of channels of auxiliary power supplies and configured to switch one channel of auxiliary power supply connected to the charging circuit among the plurality of channels of auxiliary power supplies and to simultaneously switch one channel of auxiliary power supply connected to a power supply destination so as not to match the channel of auxiliary power supply connected to the charging circuit.Type: ApplicationFiled: January 11, 2018Publication date: July 19, 2018Applicants: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumihiko SATOU, Toyoki SUGIYAMA, Masataka OKUDA, Hidefumi KAMIKAWA
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Patent number: 9932069Abstract: When a vehicle is quickly steered while the vehicle is travelling at an extremely low speed, a load on an in-vehicle power supply is reduced without deteriorating a steering feeling by reducing a motor driving current. A steering speed is compared with a threshold. When the steering speed is lower than the threshold, the process proceeds to step S6. In step S6, a voltage value of a battery power supply, which is used as a prescribed value, is set as a limit voltage in order to reduce a motor consumption current. When the steering speed is higher than the threshold, a value “V0/n” lower than the prescribed value is set as the limit voltage to reduce a consumption current when the steering wheel is steered without driving. “n” is “delay adjustment parameter”, and is a real number that exceeds 1.Type: GrantFiled: December 5, 2012Date of Patent: April 3, 2018Assignee: JTEKT CORPORATIONInventors: Toyoki Sugiyama, Yasuyuki Yoshii
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Publication number: 20170313349Abstract: An electric power steering system includes a vehicle speed sensor configured to detect a vehicle speed, a motor driving circuit configured to supply power to an electric motor, a main power supply and a capacitor that can supply power to a driving circuit, a charging circuit configured to charge the capacitor based on the main power supply, and an ECU for power source control that controls the charging circuit. The ECU for power source control drives the charging circuit to charge the capacitor only when the vehicle speed is lower than a first predetermined value and an inter-terminal voltage of the capacitor is lower than a second predetermined value.Type: ApplicationFiled: April 21, 2017Publication date: November 2, 2017Applicant: JTEKT CORPORATIONInventor: Toyoki SUGIYAMA
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Patent number: 9446790Abstract: An electric power steering system includes: an electric motor that generates assist torque; an auxiliary power supply device including a capacitor connected to a main power supply and discharging electric power to the electric motor; and a control device that controls the auxiliary power supply device. There is a plurality of modes of connection between the main power supply and the auxiliary power supply device. The control device switches the mode of connection between the main power supply and the auxiliary power supply device, depending on the situation.Type: GrantFiled: November 4, 2013Date of Patent: September 20, 2016Assignee: JTEKT CORPORATIONInventors: Toyoki Sugiyama, Masayasu Higashi
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Patent number: 9126620Abstract: An electric power steering system includes: an assist motor that generate assist force for assisting steering of a steering member; a motor drive circuit that controls driving of the assist motor; a capacitor that is electrically connected to a main power supply that supplies electric power to the assist motor, the motor drive circuit, and electrical components; and a controller that controls charging and discharging of the capacitor. The controller discharges electricity to the electrical components when an amount of electric charge remaining in the auxiliary power supply is equal to or greater than a first threshold value in an engine start-up period in a vehicle.Type: GrantFiled: June 25, 2014Date of Patent: September 8, 2015Assignee: JTEKT CORPORATIONInventors: Toyoki Sugiyama, Masayasu Higashi
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Patent number: 8958952Abstract: An auxiliary power supply device includes a capacitor that is connected to a main power source, and that is able to discharge an electric current to an electric motor, the main power source supplying electric power to the electric motor; and a booster circuit that boosts a voltage of the main power source and applies the boosted voltage to the auxiliary power source. An operation of the auxiliary power supply device is controlled by a control device. When supply of the electric power from the main power source to the capacitor is started in a state where a voltage across terminals of the capacitor is equal to or higher than a voltage of the main power source, the control device increases the voltage applied to the capacitor by the booster circuit as the capacitor voltage increases.Type: GrantFiled: January 23, 2014Date of Patent: February 17, 2015Assignee: JTEKT CorporationInventors: Toyoki Sugiyama, Masayasu Higashi
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Publication number: 20150008066Abstract: An electric power steering system includes: an assist motor that generate assist force for assisting steering of a steering member; a motor drive circuit that controls driving of the assist motor; a capacitor that is electrically connected to a main power supply that supplies electric power to the assist motor, the motor drive circuit, and electrical components; and a controller that controls charging and discharging of the capacitor. The controller discharges electricity to the electrical components when an amount of electric charge remaining in the auxiliary power supply is equal to or greater than a first threshold value in an engine start-up period in a vehicle.Type: ApplicationFiled: June 25, 2014Publication date: January 8, 2015Inventors: Toyoki SUGIYAMA, Masayasu HIGASHI