Patents by Inventor Hideaki Tani

Hideaki Tani 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: 9073497
    Abstract: A power generation control apparatus in a vehicle includes: a power generator generating power when driven by an internal combustion engine; an electric storage apparatus charged by the power generator; a current sensor measuring a charge and discharge current value; an SOC computation portion estimating an SOC in the electric storage apparatus on the basis of the measured charge and discharge current; a generation voltage computation portion determining a generation voltage of the power generator so that the SOC in the electric storage apparatus becomes a target SOC; a target SOC computation portion setting the target SOC; and a generation cost computation portion calculating an amount of consumed fuel per unit generation output on the basis of an operating point of the internal combustion engine. The target SOC set by the target SOC computation portion is changed according to the calculated amount of consumed fuel per unit generation output.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: July 7, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yasufumi Ogawa, Takeru Okabe, Hideaki Tani
  • Publication number: 20150048802
    Abstract: Provided are a power generation control method for a vehicle configured to perform idling stop at a predetermined vehicle speed or less by a stop/start system, the vehicle including: a power generator configured to be driven by an internal combustion engine to generate power; and a battery to be charged by the power generated by the power generator, the power being generated in the vehicle under control so as to reduce an amount of fuel to be consumed by the internal combustion engine for power generation, the power generation control method including: detecting a charged and discharged state of the battery; and controlling the internal combustion engine to interrupt power generation involving fuel consumption when a charged state of the battery has recovered to a charged state before the idling stop through charging after the idling stop in accordance with the detected charged and discharged state.
    Type: Application
    Filed: June 14, 2012
    Publication date: February 19, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hideaki Tani, Toshiaki Date, Satoshi Wachi, Takeru Okabe
  • Patent number: 8922036
    Abstract: A vehicular power generation system includes: a battery which is charged by power generation electric power of a generator that is driven by an internal combustion engine; and a power generation control device which reduces the amount of fuel to be consumed for power generation of the internal combustion engine. The power generation control device includes: a unit which sets an operating range that is small in the amount of fuel to be consumed for an increase in torque of the internal combustion engine; a unit which sets electric power with high power generation efficiency to a target value of power generation electric power according to rotation speed and power generation voltage of the generator; and a unit which controls so that the amount of power generation of the generator is a target value when the operating point of the internal combustion engine is in the operating range.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 30, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideaki Tani, Toshiaki Date, Satoshi Wachi
  • Publication number: 20140114517
    Abstract: In power generation control for a vehicle, which is configured to control power generation so as to reduce an amount of fuel consumed by power generation of the internal combustion engine, the vehicle including: a generator configured to be driven by the internal combustion engine to generate electric power; and the battery to be charged by the generated electric power of the generator, the vehicle being configured to stop idling at a predetermined vehicle speed or less, a battery voltage as an inter-terminal voltage of the battery is detected, and the internal combustion engine is controlled to interrupt power generation involving fuel consumption one of when the detected battery voltage reaches a predetermined combustion power generation interruption voltage and when the detected battery voltage exceeds the predetermined combustion power generation interruption voltage.
    Type: Application
    Filed: March 22, 2013
    Publication date: April 24, 2014
    Inventors: Hideaki TANI, Takeru OKABE, Satoshi WACHI
  • Publication number: 20130307492
    Abstract: A vehicular power generation system includes: a battery which is charged by power generation electric power of a generator that is driven by an internal combustion engine; and a power generation control device which reduces the amount of fuel to be consumed for power generation of the internal combustion engine. The power generation control device includes: a unit which sets an operating range that is small in the amount of fuel to be consumed for an increase in torque of the internal combustion engine; a unit which sets electric power with high power generation efficiency to a target value of power generation electric power according to rotation speed and power generation voltage of the generator; and a unit which controls so that the amount of power generation of the generator is a target value when the operating point of the internal combustion engine is in the operating range.
    Type: Application
    Filed: October 17, 2012
    Publication date: November 21, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideaki TANI, Toshiaki DATE, Satoshi WACHI
  • Patent number: 8311136
    Abstract: The present invention is to provide a wireless communication system that is capable of preventing occurrence of radio interference caused by radio wave used by a radio wave generator without requiring any improvement of existing wireless devices. The wireless communication system of the present invention includes: a radio wave generator (1) that uses at least a radio wave in a frequency band that overlaps a frequency band used by a wireless standard; and wireless devices (AP, STA) each of which uses a radio wave conforming to the wireless standard. The radio wave generator (1) transmits a dummy frame conforming to the wireless standard to the wireless devices near the radio wave generator (1) before generating the radio wave in the same frequency band as the frequency band used by the wireless standard.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 13, 2012
    Assignee: NEC Corporation
    Inventors: Satoru Yamano, Hideaki Tani
  • Publication number: 20120271537
    Abstract: A control device for an internal combustion engine capable of controlling an intake-pipe pressure within a range which allows restartability to be ensured. A control device for an internal combustion engine includes: an idle-stop control section for restarting the engine in response to generation of a restart request; and an intake-air amount control section for setting a control amount of an intake system so that the intake air amount becomes zero when an intake-pipe pressure of the engine upon generation of the automatic stop request is higher than a predetermined pressure and setting the control amount of the intake system so that the intake air amount becomes larger than the amount upon generation of the automatic stop request, and then becomes zero when the intake-pipe pressure is lower than the predetermined pressure.
    Type: Application
    Filed: October 19, 2011
    Publication date: October 25, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeru OKABE, Osamu ISHIKAWA, Tomohisa SHODA, Hideaki TANI, Toru TANAKA
  • Publication number: 20120253572
    Abstract: A power generation control apparatus in a vehicle includes: a power generator generating power when driven by an internal combustion engine; an electric storage apparatus charged by the power generator; a current sensor measuring a charge and discharge current value; an SOC computation portion estimating an SOC in the electric storage apparatus on the basis of the measured charge and discharge current; a generation voltage computation portion determining a generation voltage of the power generator so that the SOC in the electric storage apparatus becomes a target SOC; a target SOC computation portion setting the target SOC; and a generation cost computation portion calculating an amount of consumed fuel per unit generation output on the basis of an operating point of the internal combustion engine. The target SOC set by the target SOC computation portion is changed according to the calculated amount of consumed fuel per unit generation output.
    Type: Application
    Filed: September 28, 2011
    Publication date: October 4, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasufumi OGAWA, Takeru OKABE, Hideaki TANI
  • Publication number: 20090305708
    Abstract: A mobile terminal includes a mobile phone function unit, a storing unit, a communication control unit, and a store-and-forward multihop communication function unit. The mobile phone function unit confirms status of connection with a mobile base station and exchanges information with the mobile base station when the status of connection is a connection state. The storing unit stores information received and generated by the mobile phone function unit. The communication control unit receives connection information including the status of connection from the mobile phone function unit and generates a control signal when the connection information indicates a disconnection state.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 10, 2009
    Inventors: Junichiro Matsui, Kazuo Takagi, Hideaki Tani
  • Publication number: 20090296854
    Abstract: The present invention is to provide a wireless communication system that is capable of preventing occurrence of radio interference caused by radio wave used by a radio wave generator without requiring any improvement of existing wireless devices. The wireless communication system of the present invention includes: a radio wave generator (1) that uses at least a radio wave in a frequency band that overlaps a frequency band used by a wireless standard; and wireless devices (AP, STA) each of which uses a radio wave conforming to the wireless standard. The radio wave generator (1) transmits a dummy frame conforming to the wireless standard to the wireless devices near the radio wave generator (1) before generating the radio wave in the same frequency band as the frequency band used by the wireless standard.
    Type: Application
    Filed: July 3, 2007
    Publication date: December 3, 2009
    Inventors: Satoru Yamano, Hideaki Tani
  • Publication number: 20090268891
    Abstract: A system includes a storage for storing positional information of telephone terminals, a determiner for being notified of a called telephone terminal by an exchange which received a call from a calling telephone terminal, and determining whether the called telephone terminal is in a particular area, and an indicator for, if the called telephone terminal is in the area, retrieving a telephone terminal in a range based on the called telephone terminal, as a neighboring terminal, and indicating the neighboring terminal to the exchange. The exchange includes a requester for sending a connection request to another exchange, to request that a connection be made between the called telephone terminal and the neighboring terminal, and a caller for receiving a connection request from another exchange and sending a call to a telephone terminal which is assigned by the connection request.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 29, 2009
    Inventors: Junichiro Matsui, Kazuo Takagi, Hideaki Tani
  • Patent number: 7286542
    Abstract: A mobile communication network system is capable of achieving both of route optimizing function and demand for privacy protection. An address server determines network addresses to be assigned for a plurality of variable IP subnetworks and use period of the network addresses, and distributes network addresses to routers having foreign agent function in the variable IP subnetworks. When use period of the assigned network address expires, new network address of own router is at first assigned. Addition of the subnetwork having new network address is notified to respective routers of the fixed IP subnetworks using IP route control means.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: October 23, 2007
    Assignee: NEC Corporation
    Inventor: Hideaki Tani
  • Patent number: 7273040
    Abstract: At the time of start-up, fuel supply is made excessive. When air-fuel ratio feedback control is started while the fuel is excessive, the control is put into a state of overshoot or hunting, and it takes a long time to converge to the target air-fuel ratio. In an air-fuel ratio control apparatus, a selection switch is provided at the output of an integration calculation circuit to perform air-fuel ratio feedback control, and immediately after start-up of the engine, an upper/lower limit clip value for use immediately after start-up, which is smaller than a normal one, is selected to perform the air-fuel ratio feedback control. Even if the air-fuel ratio feedback control is started immediately after the start-up in a state where the fuel is excessive, the actual air-fuel ratio does not overshoot with respect to the target air-fuel ratio and is quickly converged to the target air-fuel ratio.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: September 25, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tomohisa Shouda, Keiichi Enoki, Hideaki Tani
  • Publication number: 20070195715
    Abstract: In a network made up of a plurality of devices each capable of a multi-hop communication that conforms to at least one of the wired communication standards or wireless communication standards, each device monitors a communication situation on communication links and path established between the device and a destination device. When the communication situation changes, the device switches the communication path for use in a communication with the destination device to another communication path which can be established between the device and destination device.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 23, 2007
    Applicant: NEC CORPORATION
    Inventors: Satoru Yamano, Hideaki Tani
  • Publication number: 20070023021
    Abstract: At the time of start-up, fuel supply is made excessive. When air-fuel ratio feedback control is started while the fuel is excessive, the control is put into a state of overshoot or hunting, and it takes a long time to converge to the target air-fuel ratio. In an air-fuel ratio control apparatus, a selection switch is provided at the output of an integration calculation circuit to perform air-fuel ratio feedback control, and immediately after start-up of the engine, an upper/lower limit clip value for use immediately after start-up, which is smaller than a normal one, is selected to perform the air-fuel ratio feedback control. Even if the air-fuel ratio feedback control is started immediately after the start-up in a state where the fuel is excessive, the actual air-fuel ratio does not overshoot with respect to the target air-fuel ratio and is quickly converged to the target air-fuel ratio.
    Type: Application
    Filed: January 6, 2006
    Publication date: February 1, 2007
    Inventors: Tomohisa Shouda, Keiichi Enoki, Hideaki Tani
  • Patent number: 7168240
    Abstract: A control apparatus for an internal combustion engine can detect degradation of a three-way catalyst with high accuracy without causing deterioration in an exhaust. A pair of first and second air fuel ratio detectors are disposed in an exhaust system at locations upstream and downstream of the three-way catalyst for detecting a first and a second air fuel ratio of an exhaust gas. A target oxygen change amount calculator calculates a target oxygen change amount of the three-way catalyst, and an oxygen change amount calculator calculates an oxygen change amount of the three-way catalyst from an amount of exhaust gas passing through the three-way catalyst and the first air fuel ratio. An air fuel ratio operator inversely controls the air fuel ratio to a rich side and a lean side with a prescribed air fuel ratio width each time the oxygen change amount reaches a target oxygen change amount.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: January 30, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Tani, Kuen Yehliu, Keiichi Enoki, Tadahiro Azuma
  • Patent number: 7100166
    Abstract: A network application decentralized execution system which allows a network application developed for a centralized switched network to be applied to a decentralized switched network is disclosed. The network application decentralized execution system includes a network application server, a first terminal equipment and a second terminal equipment. Each of the first and second terminal equipments includes a detection section for detecting a variation of a connection state of the terminal equipment, a control section for controlling the connection state, and a plug-in section for plugging in an application execution script downloaded from a network application server.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: August 29, 2006
    Assignee: NEC Corporation
    Inventors: Hirokazu Takatama, Hideaki Tani
  • Publication number: 20060090456
    Abstract: A control apparatus for an internal combustion engine can detect degradation of a three-way catalyst with high accuracy without causing deterioration in an exhaust. A pair of first and second air fuel ratio detectors are disposed in an exhaust system at locations upstream and downstream of the three-way catalyst for detecting a first and a second air fuel ratio of an exhaust gas. A target oxygen change amount calculator calculates a target oxygen change amount of the three-way catalyst, and an oxygen change amount calculator calculates an oxygen change amount of the three-way catalyst from an amount of exhaust gas passing through the three-way catalyst and the first air fuel ratio. An air fuel ratio operator inversely controls the air fuel ratio to a rich side and a lean side with a prescribed air fuel ratio width each time the oxygen change amount reaches a target oxygen change amount.
    Type: Application
    Filed: August 4, 2005
    Publication date: May 4, 2006
    Inventors: Hideaki Tani, Kuen Yehliu, Keiichi Enoki, Tadahiro Azuma
  • Patent number: 7020081
    Abstract: A stream distribution system comprises a stream distribution server, a plurality of terminal devices each having a information reproduction function, and a local area network for connecting both of the stream distribution server and the terminal devices, in which the stream distribution server comprises reception means for receiving a stream data of a digital form transmitted through a broadcasting network or a communication network, selection means for selecting a predetermined unit of information from the stream data received by the reception means based on a distribution condition set by the terminal device which has an information reproduction function, file I/O means for controlling a file device under management of the stream distribution server and for outputting information selected by the selection means to the file device, and transmission means for transmitting information selected by the selection means to the terminal device after executing a predetermined processing according to a limitation of
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: March 28, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideaki Tani, Koji Taniguchi
  • Publication number: 20040226775
    Abstract: A merchandise order receiving method, a program, and a first-order type drive through system in which an order receiver can trace an orderer's position during movement of the orderer of a merchandise and which stops the acquisition of position information of the orderer on an order receiver side at the time of merchandise transfer completion to protect orderer's privacy.
    Type: Application
    Filed: January 15, 2004
    Publication date: November 18, 2004
    Applicant: NEC CORPORATION
    Inventors: Hirokazu Takatama, Hideaki Tani