Patents by Inventor Yohei AKASHI

Yohei AKASHI 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).

  • Patent number: 10086845
    Abstract: A vehicle information display control device includes: an automatic driving information obtaining unit that obtains automatic driving information including information indicating that each actuator of a vehicle is in a manual control mode or an automatic control mode; and a display controller that displays images on a first display area and a second display area of a display based on the automatic driving information. The display controller displays an image corresponding to an actuator in the manual control mode on the first display area and an image corresponding to an actuator in the automatic control mode on the second display area.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 2, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi Miyahara, Mitsuo Shimotani, Satoru Inoue, Yoshio Sato, Yuki Sakai, Yuji Karita, Yohei Akashi
  • Publication number: 20180222491
    Abstract: A vehicle information display control device includes: an automatic driving information obtaining unit that obtains automatic driving information including information indicating that each actuator of a vehicle is in a manual control mode or an automatic control mode; and a display controller that displays images on a first display area and a second display area of a display based on the automatic driving information. The display controller displays an image corresponding to an actuator in the manual control mode on the first display area and an image corresponding to an actuator in the automatic control mode on the second display area.
    Type: Application
    Filed: October 30, 2015
    Publication date: August 9, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi MIYAHARA, Mitsuo SHIMOTANI, Satoru INOUE, Yoshio SATO, Yuki SAKAI, Yuji KARITA, Yohei AKASHI
  • Patent number: 10024225
    Abstract: In a controller of an internal combustion engine equipped with an electric supercharger driven by a motor, an object is to attempt to improve fuel consumption of a vehicle. The controller includes an electric supercharger driven by a motor; a generator that performs power generation using the output of the internal combustion engine as power; a charging device which is charged by the generator and can store electricity; and an accelerator opening degree detector that detects an accelerator opening degree. In the controller, a configuration is made such that, the controller controls supply electricity to the electric supercharger and generated electricity by the generator by the output of the accelerator opening degree detector, output needed for the electric supercharger calculated depending on the accelerator opening degree, and an state of charge in the charging device.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Akashi, Hideyuki Tanaka
  • Patent number: 9902282
    Abstract: A power supply device for a vehicle has connection changeover means for alternatively changing a connection of a capacitor and a battery over to any one of a parallel connection of the capacitor and the battery, a series connection of the capacitor and the battery and an independent connection of the capacitor and the battery. Electrical power is selectively supplied to a electric supercharger by any one of a parallel connection circuit of the capacitor and the battery, a series connection circuit of the capacitor and the battery and an independent connection circuit of the capacitor and the battery whose connection of the capacitor and the battery are alternatively changed over to by the connection changeover means.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: February 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Akashi, Hideyuki Tanaka
  • Patent number: 9845087
    Abstract: An object is to provide a vehicle control apparatus capable of enhancing fuel economy when coasting is performed by disconnecting a clutch disposed between an engine and drive wheels of the vehicle. A travel path and a travel pattern of a vehicle are predicted by a vehicle outside information collection device, such as a navigation system. Also, amounts of fuel consumption by normal traveling and coasting are predicted and compared, so that coasting control is performed in a case where an amount of fuel consumption can be reduced by performing the coasting control.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: December 19, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Akashi, Hideyuki Tanaka, Hiroyuki Saito
  • Patent number: 9359975
    Abstract: Internal combustion engine system includes an electric supercharger which supercharges sucked air; a throttle valve which adjusts the flow amount of intake air of supercharged air into a cylinder; an EGR path in which a part of exhaust gas exhausted from the exhaust manifold side is recirculated to the intake manifold side; an EGR valve which adjusts the amount of exhaust gas passing through the EGR path; and an internal combustion engine control unit which controls the throttle valve, the EGR valve, and the electric supercharger. This enables to satisfy both performance of the supercharger and fuel consumption of the internal combustion engine without complicating the structure of EGR.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: June 7, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideyuki Tanaka, Yohei Akashi
  • Patent number: 9008878
    Abstract: The control device for a hybrid vehicle including an exhaust-gas driven generator includes: a turbine (10); an exhaust-gas driven generator (11); a motor generator (16); a battery (14); and a control unit (12) for performing overall control based on a result of reading of a status signal. When the control unit determines based on the result of the reading of the status signal that an output of the internal combustion engine is required to be assisted by the motor generator, the control unit further determines whether a power generation by the exhaust-gas driven generator is in an inhibited state or an allowed state. When the control unit determines that the power generation by the exhaust-gas driven generator is in the inhibited state, the control unit stops the power generation by the exhaust-gas driven generator to drive the motor generator by the power from the battery.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: April 14, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Akashi, Hideyuki Tanaka, Hiroyuki Saito
  • Publication number: 20150088349
    Abstract: An object is to provide a vehicle control apparatus capable of enhancing fuel economy when coasting is performed by disconnecting a clutch disposed between an engine and drive wheels of the vehicle. A travel path and a travel pattern of a vehicle are predicted by a vehicle outside information collection device, such as a navigation system. Also, amounts of fuel consumption by normal traveling and coasting are predicted and compared, so that coasting control is performed in a case where an amount of fuel consumption can be reduced by performing the coasting control.
    Type: Application
    Filed: June 4, 2014
    Publication date: March 26, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yohei AKASHI, Hideyuki TANAKA, Hiroyuki SAITO
  • Publication number: 20140346865
    Abstract: A power supply device for a vehicle has connection changeover means for alternatively changing a connection of a capacitor and a battery over to any one of a parallel connection of the capacitor and the battery, a series connection of the capacitor and the battery and an independent connection of the capacitor and the battery. Electrical power is selectively supplied to a electric supercharger by any one of a parallel connection circuit of the capacitor and the battery, a series connection circuit of the capacitor and the battery and an independent connection circuit of the capacitor and the battery whose connection of the capacitor and the battery are alternatively changed over to by the connection changeover means.
    Type: Application
    Filed: January 29, 2014
    Publication date: November 27, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yohei AKASHI, Hideyuki TANAKA
  • Patent number: 8841873
    Abstract: The motor control device includes: a vehicle control device (1) for generating a first torque command value Tref according to state quantities of the vehicle acquired from various sensors (7); a vehicle-resonance-compensation calculation unit (23) for extracting a frequency component generating a vehicle resonance from torque ripple components detected from an electrical angle ? of a motor for traveling (3) by a vehicle resonance component extraction filter (24), and generating a second torque command value Tcmp as a resonance compensation value for carrying out feedback control for the extracted frequency component; and an adder (20) for generating a torque command value Tref_cmp by subtracting the second torque command value Tcmp from the first torque command value Tref, and the motor (3) is controlled according to the torque command value. With this, it is possible to restrain the resonance of the vehicle caused by the torque ripple of the motor (3).
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: September 23, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Akashi, Kazuyuki Tanaka, Hideyuki Tanaka
  • Publication number: 20140172207
    Abstract: The control device for a hybrid vehicle including an exhaust-gas driven generator includes: a turbine (10); an exhaust-gas driven generator (11); a motor generator (16); a battery (14); and a control unit (12) for performing overall control based on a result of reading of a status signal. When the control unit determines based on the result of the reading of the status signal that an output of the internal combustion engine is required to be assisted by the motor generator, the control unit further determines whether a power generation by the exhaust-gas driven generator is in an inhibited state or an allowed state. When the control unit determines that the power generation by the exhaust-gas driven generator is in the inhibited state, the control unit stops the power generation by the exhaust-gas driven generator to drive the motor generator by the power from the battery.
    Type: Application
    Filed: June 19, 2013
    Publication date: June 19, 2014
    Inventors: Yohei AKASHI, Hideyuki TANAKA, Hiroyuki SAITO
  • Patent number: 8601810
    Abstract: Provided is an internal combustion engine for improving fuel-economy performance in any of the case where supercharging performed by an electric supercharger is required and the case where the supercharging is not required. The internal combustion engine includes: an electric supercharger; a supercharger; an electric motor; and a controller, the electric supercharger being for compressing an intake air by rotation of the supercharger caused with rotation of the exhaust turbine by an exhaust gas energy to perform supercharging and for rotationally driving the supercharger with electric-motor assistance by the electric motor; an exhaust bypass passage provided to bypass the exhaust turbine; and an opening and closing the exhaust bypass passage unit. In the internal combustion engine, the opening and closing the exhaust bypass passage unit opens the exhaust bypass passage until the supercharging is started by the electric supercharger.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideyuki Tanaka, Noriyuki Inoue, Yohei Akashi
  • Patent number: 8555639
    Abstract: An on-off switch is provided between a first battery acting to supply an electric power to on-vehicle electrical equipment and a second battery acting to supply an electric power to an electric supercharger. In the case that charge voltage of the first battery is smaller than a predetermined value and operating power of an electric supercharger 3 is larger than a predetermined value, the on-off switch is opened to suppress electrical effects on the on-vehicle electrical equipment. In other cases, the on-off switch is closed and the second battery is charged by a generator and the first battery. As a result, it is possible to suppress adverse effects on the on-vehicle electrical equipment due to voltage drop or voltage fluctuation of a power source occurring by driving the electric supercharger and thus to make a stable power supply.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: October 15, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masutaka Watanabe, Yohei Akashi, Hideyuki Tanaka
  • Publication number: 20130255647
    Abstract: In a controller of an internal combustion engine equipped with an electric supercharger driven by a motor, an object is to attempt to improve fuel consumption of a vehicle. The controller includes an electric supercharger driven by a motor; a generator that performs power generation using the output of the internal combustion engine as power; a charging device which is charged by the generator and can store electricity; and an accelerator opening degree detector that detects an accelerator opening degree. In the controller, a configuration is made such that, the controller controls supply electricity to the electric supercharger and generated electricity by the generator by the output of the accelerator opening degree detector, output needed for the electric supercharger calculated depending on the accelerator opening degree, and an state of charge in the charging device.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 3, 2013
    Inventors: Yohei AKASHI, Hideyuki TANAKA
  • Publication number: 20130255251
    Abstract: Internal combustion engine system includes an electric supercharger which supercharges sucked air; a throttle valve which adjusts the flow amount of intake air of supercharged air into a cylinder; an EGR path in which a part of exhaust gas exhausted from the exhaust manifold side is recirculated to the intake manifold side; an EGR valve which adjusts the amount of exhaust gas passing through the EGR path; and an internal combustion engine control unit which controls the throttle valve, the EGR valve, and the electric supercharger. This enables to satisfy both performance of the supercharger and fuel consumption of the internal combustion engine without complicating the structure of EGR.
    Type: Application
    Filed: January 22, 2013
    Publication date: October 3, 2013
    Inventors: Hideyuki Tanaka, Yohei Akashi
  • Publication number: 20120235612
    Abstract: The motor control device includes: a vehicle control device (1) for generating a first torque command value Tref according to state quantities of the vehicle acquired from various sensors (7); a vehicle-resonance-compensation calculation unit (23) for extracting a frequency component generating a vehicle resonance from torque ripple components detected from an electrical angle ? of a motor for traveling (3) by a vehicle resonance component extraction filter (24), and generating a second torque command value Tcmp as a resonance compensation value for carrying out feedback control for the extracted frequency component; and an adder (20) for generating a torque command value Tref_cmp by subtracting the second torque command value Tcmp from the first torque command value Tref, and the motor (3) is controlled according to the torque command value. With this, it is possible to restrain the resonance of the vehicle caused by the torque ripple of the motor (3).
    Type: Application
    Filed: November 11, 2011
    Publication date: September 20, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei Akashi, Kazuyuki Tanaka, Hideyuki Tanaka
  • Publication number: 20110174278
    Abstract: An on-off switch is provided between a first battery acting to supply an electric power to on-vehicle electrical equipment and a second battery acting to supply an electric power to an electric supercharger. In the case that charge voltage of the first battery is smaller than a predetermined value and operating power of an electric supercharger 3 is larger than a predetermined value, the on-off switch is opened to suppress electrical effects on the on-vehicle electrical equipment. In other cases, the on-off switch is closed and the second battery is charged by a generator and the first battery. As a result, it is possible to suppress adverse effects on the on-vehicle electrical equipment due to voltage drop or voltage fluctuation of a power source occurring by driving the electric supercharger and thus to make a stable power supply.
    Type: Application
    Filed: November 4, 2010
    Publication date: July 21, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masutaka Watanabe, Yohei Akashi, Hideyuki Tanaka
  • Publication number: 20100287932
    Abstract: An electrically assisted turbocharger is provided; in the case where an internal combustion engine rotates at low rotation speed, the output thereof is secured by adjusting the flow rate in a recirculation path while supercharging with electrically assisting torque, and in the case where the internal combustion engine rotates at high rotation speed, electrically assisting torque compensates the inertia of at least a turbine wheel, a compressor impeller, and a motor; as a result, not only unnecessary consumption of electric energy is avoided, but also desired supercharging can be performed by the electrically assisted turbocharger.
    Type: Application
    Filed: February 1, 2010
    Publication date: November 18, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hideyuki TANAKA, Noriyuki Inoue, Yohei Akashi
  • Publication number: 20100263374
    Abstract: Provided is an internal combustion engine for improving fuel-economy performance in any of the case where supercharging performed by an electric supercharger is required and the case where the supercharging is not required. The internal combustion engine includes: an electric supercharger; a supercharger; an electric motor; and a controller, the electric supercharger being for compressing an intake air by rotation of the supercharger caused with rotation of the exhaust turbine by an exhaust gas energy to perform supercharging and for rotationally driving the supercharger with electric-motor assistance by the electric motor; an exhaust bypass passage provided to bypass the exhaust turbine; and an opening and closing the exhaust bypass passage unit. In the internal combustion engine, the opening and closing the exhaust bypass passage unit opens the exhaust bypass passage until the supercharging is started by the electric supercharger.
    Type: Application
    Filed: November 4, 2009
    Publication date: October 21, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideyuki TANAKA, Noriyuki INOUE, Yohei AKASHI