Patents by Inventor Masaya Amano

Masaya Amano 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).

  • Publication number: 20170072942
    Abstract: A vehicle includes an engine, an MG (motor generator) 1, an MG2, a planetary gear device mechanically coupled to the engine and MG1 and MG2, a battery, a converter configured to boost a voltage from the battery, an inverter configured to perform a power conversion between the converter and MG1 or between the converter and MG2, and a controller. MG1 generates a counter-electromotive voltage when rotated by the engine, and a braking torque is generated as the counter-electromotive voltage becomes greater than the output voltage of the converter. During an inverter-less running control where the inverter is put into a gate shut-off state and the engine is driven to cause MG1 to generate the counter-electromotive torque, the controller decreases a voltage difference between the counter-electromotive voltage and the output voltage of the converter when a chargeable power of the battery is lower than a predetermined value.
    Type: Application
    Filed: September 8, 2016
    Publication date: March 16, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoyuki SHIBATA, Takeshi KISHIMOTO, Masaya AMANO, Takashi ANDO, Yu SHIMIZU
  • Patent number: 9499155
    Abstract: In the state where a sensor used for controlling a first inverter has an abnormality, when rotation speed Ne of an engine is lower than a predetermined reference value Nref (S120), three phase-on control of a first inverter is performed (S190). This causes the rotation speed of the engine to be increased with an increase in rotation speed of a driveshaft. Operation control of the engine is started when the rotation speed Ne of the engine reaches or exceeds a threshold value Nst (S210 to S230).
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: November 22, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinichiro Minegishi, Masaya Amano
  • Publication number: 20160236669
    Abstract: A hybrid vehicle includes: an engine; a first motor; a planetary gear having three rotary elements that are connected respectively to a rotary shaft of the first motor, an output shaft of the engine, and a drive shaft coupled to an axle such that on a collinear diagram, the rotary shaft, the output shaft, and the drive shaft are arranged in that order; a second motor; a first inverter configured to drive the first motor; a second inverter configured to drive the second motor; a battery capable of exchanging power with the first and second motors via the first and second inverters; and an electronic control unit configured to control the engine such that a rotation speed of the engine increases at a predetermined time when the engine is operative, respective gates of the first and second inverters are both blocked, and an accelerator is ON.
    Type: Application
    Filed: February 11, 2016
    Publication date: August 18, 2016
    Inventors: Masaya Amano, Shinichiro Minegishi, Takashi Ando, Takeshi Kishimoto
  • Publication number: 20160152128
    Abstract: In the state where a sensor used for controlling a first inverter has an abnormality, when rotation speed Ne of an engine is lower than a predetermined reference value Nref (S120), three phase-on control of a first inverter is performed (S190). This causes the rotation speed of the engine to be increased with an increase in rotation speed of a driveshaft. Operation control of the engine is started when the rotation speed Ne of the engine reaches or exceeds a threshold value Nst (S210 to S230).
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinichiro MINEGISHI, Masaya AMANO
  • Patent number: 9273777
    Abstract: In a manual transmission mode, a downshift instruction signal is outputted by a position sensor, and a shift range is lowered by one gear, as a result of an operation of a shift lever by the driver. The driving force of the vehicle is increased through downshifting. The number of times of downshifting within a predefined time is limited to a predefined number of times.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 1, 2016
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Nobuyuki Tanaka, Masaya Amano, Shunsuke Oyama, Shoji Nagata
  • Publication number: 20150292427
    Abstract: A PM-ECU configured to control a drive torque of a vehicle is configured to be stopped in response to a driver's operation of a start switch and then activated in response to a driver's re-operation of the start switch. The PM-ECU is configured to be activated and place a restriction on the drive torque of the vehicle, in response to a re-operation of the start switch after the PM-ECU is stopped in response to an operation of the start switch. The PM-ECU is configured to remove the restriction on the drive torque in response to a reduction of an operation amount by which an accelerator pedal is operated.
    Type: Application
    Filed: December 4, 2012
    Publication date: October 15, 2015
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaya Amano, Kenji Uchida, Nobuyuki Tanaka, Yuki Hayakawa, Go Hayasaka
  • Patent number: 9114698
    Abstract: When a vehicle collision is detected, a electric connection between a power supply and an input stage of an inverter is switched to the disconnected condition. Then, when a rotation speed of an alternating current motor is higher than an allowable rotation speed or a terminal voltage of a storage unit provided at the input stage is higher than an allowable terminal voltage, an exciting current command value is set at a value other than zero and a torque current command value is set at zero, and when the rotation speed is equal to or lower than the allowable rotation speed and the terminal voltage is equal to or lower than the allowable terminal voltage, both command values are set at zero. An exciting current component and a torque current component of an alternating current supplied from the inverter to the motor are controlled according to the set command values.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: August 25, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaya Amano, Kenji Uchida, Shinjiro Ashida, Takaharu Hori, Naoya Kanada, Kenji Tahara
  • Patent number: 9086142
    Abstract: An ECU determines whether or not there is an abnormality (shift pattern abnormality) in a combination of shift signals provided from a shift position sensor. After occurrence of the shift pattern abnormality is determined, the ECU determines whether or not a first condition that a shift pattern changes into a normal pattern of a drive range is satisfied, and whether or not a second condition that a vehicle is running (a driver has an intention to cause the vehicle to run) is satisfied. When occurrence of the shift pattern abnormality is determined, the ECU stops generation of driving force of the vehicle and prohibits switching to the drive range. When the above-mentioned first condition and second condition are satisfied after occurrence of the shift pattern abnormality is determined, the ECU switches the shift range to the drive range indicated by the shift pattern and recovers the driving force.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: July 21, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Nobuyuki Tanaka, Masaya Amano, Koji Hokoi, Masashi Yoshimi, Takeshi Hoshiba, Takahiko Hirasawa
  • Patent number: 9086949
    Abstract: During the deactivation of a driving system of a vehicle, an ECU determines whether or not a P range abnormality occurs which exhibits that a shift signal transmitted from a shift position sensor includes a P signal and an MJ signal corresponding to the P range as well as a different-type signal other than the P signal and the MJ signal. When the P range abnormality occurs, the ECU determines whether or not the vehicle-stopped state can be assured based on whether or not a brake-ON state (a hydraulic braking force or a parking braking force are beyond the range capable of maintaining vehicle-stopped state) is present. In a case where a P range abnormality occurs, when ECU determines that the vehicle-stopped state can be assured, the ECU allows the activation of the driving system.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: July 21, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Masaya Amano, Takeshi Hoshiba, Koji Hokoi, Takahiko Hirasawa, Masashi Yoshimi
  • Patent number: 8972130
    Abstract: An ECU determines whether or not there is an abnormality (shift pattern abnormality) in a combination of shift signals provided from a shift position sensor. After occurrence of the shift pattern abnormality is determined, ECU determines whether or not a first condition that a shift pattern has changed into a normal pattern of a drive range, a second condition that a brake is ON and a vehicle is in a stop state is satisfied, and a third condition that an accelerator is OFF are satisfied. When occurrence of the shift pattern abnormality is determined, ECU stops generation of driving force of the vehicle and prohibits switching to the drive range. When ECU determines that the above-mentioned first to third conditions are satisfied after occurrence of the shift pattern abnormality is determined, ECU switches the shift range to the drive range indicated by the shift pattern.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keiji Kaita, Masaya Amano, Takeshi Hoshiba, Koji Hokoi, Takahiko Hirasawa
  • Publication number: 20140366670
    Abstract: In a manual transmission mode, a downshift instruction signal is outputted by a position sensor, and a shift range is lowered by one gear, as a result of an operation of a shift lever by the driver. The driving force of the vehicle is increased through downshifting. The number of times of downshifting within a predefined time is limited to a predefined number of times.
    Type: Application
    Filed: September 10, 2012
    Publication date: December 18, 2014
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki Tanaka, Masaya Amano, Shunsuke Oyama, Shoji Nagata
  • Patent number: 8814749
    Abstract: A vehicle includes an accelerator pedal, a drive device and an electronic control unit (ECU). The drive device generates driving force for driving a wheel on the basis of an operation amount of the accelerator pedal. The ECU, while the vehicle is travelling in a ready-off state, prohibits a shift into a ready-on state until the operation amount of the accelerator pedal once becomes lower than a predetermined value.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 26, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuyuki Tanaka, Masaya Amano, Kenji Uchida, Yuki Hayakawa, Go Hayasaka
  • Publication number: 20140087917
    Abstract: A vehicle includes an accelerator pedal, a drive device and an electronic control unit (ECU). The drive device generates driving force for driving a wheel on the basis of an operation amount of the accelerator pedal. The ECU, while the vehicle is travelling in a ready-off state, prohibits a shift into a ready-on state until the operation amount of the accelerator pedal once becomes lower than a predetermined value.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 27, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki TANAKA, Masaya AMANO, Kenji UCHIDA, Yuki HAYAKAWA, Go HAYASAKA
  • Patent number: 8678898
    Abstract: A terminal sets a search range that includes a player object and is smaller than a radar map range in an object space based on the position of the player object, and generates a radar map image that indicates the position of the player object and the position of an enemy object within the search range.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Namco Bandai Games Inc.
    Inventors: Kazuo Yamamoto, Masayoshi Noda, Masaya Amano, Yoshitaka Inoue, Kazuya Watanabe
  • Publication number: 20130325275
    Abstract: An ECU determines whether or not there is an abnormality (shift pattern abnormality) in a combination of shift signals provided from a shift position sensor. After occurrence of the shift pattern abnormality is determined, ECU determines whether or not a first condition that a shift pattern has changed into a normal pattern of a drive range, a second condition that a brake is ON and a vehicle is in a stop state is satisfied, and a third condition that an accelerator is OFF satisfied. When occurrence of the shift pattern abnormality is determined, ECU stops generation of driving force of the vehicle and prohibits switching to the drive range. When ECU determines that the above-mentioned first to third conditions are satisfied after occurrence of the shift pattern abnormality is determined, ECU switches the shift range to the drive range indicated by the shift pattern.
    Type: Application
    Filed: February 14, 2011
    Publication date: December 5, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Masaya Amano, Takeshi Hoshiba, Koji Hokoi, Takahiko Hirasawa
  • Publication number: 20130317715
    Abstract: An ECU determines whether or not there is an abnormality (shift pattern abnormality) in a combination of shift signals provided from a shift position sensor. After occurrence of the shift pattern abnormality is determined, the ECU determines whether or not a first condition that a shift pattern changes into a normal pattern of a drive range is satisfied, and whether or not a second condition that a vehicle is running (a driver has an intention to cause the vehicle to run) is satisfied. When occurrence of the shift pattern abnormality is determined, the ECU stops generation of driving force of the vehicle and prohibits switching to the drive range. When the above-mentioned first condition and second condition are satisfied after occurrence of the shift pattern abnormality is determined, the ECU switches the shift range to the drive range indicated by the shift pattern and recovers the driving force.
    Type: Application
    Filed: February 4, 2011
    Publication date: November 28, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Nobuyuki Tanaka, Masaya Amano, Koji Hokoi, Masashi Yoshimi, Takeshi Hoshiba, Takahiko Hirasawa
  • Publication number: 20130317720
    Abstract: During the deactivation of a driving system of a vehicle, an ECU determines whether or not a P range abnormality occurs which exhibits that a shift signal transmitted from a shift position sensor includes a P signal and an MJ signal corresponding to the P range as well as a different-type signal other than the P signal and the MJ signal. When the P range abnormality occurs, the ECU determines whether or not the vehicle-stopped state can be assured based on whether or not a brake-ON state (a hydraulic braking force or a parking braking force are beyond the range capable of maintaining vehicle-stopped state) is present. In a case where a P range abnormality occurs, when ECU determines that the vehicle-stopped state can be assured, the ECU allows the activation of the driving system.
    Type: Application
    Filed: February 14, 2011
    Publication date: November 28, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Kaita, Masaya Amano, Takeshi Hoshiba, Koji Hokoi, Takahiko Hirasawa, Masashi Yoshimi
  • Publication number: 20130049663
    Abstract: When a vehicle collision is detected, a electric connection between a power supply and an input stage of an inverter is switched to the disconnected condition. Then, when a rotation speed of an alternating current motor is higher than an allowable rotation speed or a terminal voltage of a storage unit provided at the input stage is higher than an allowable terminal voltage, an exciting current command value is set at a value other than zero and a torque current command value is set at zero, and when the rotation speed is equal to or lower than the allowable rotation speed and the terminal voltage is equal to or lower than the allowable terminal voltage, both command values are set at zero. An exciting current component and a torque current component of an alternating current supplied from the inverter to the motor are controlled according to the set command values.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaya Amano, Kenji Uchida, Shinjiro Ashida, Takaharu Hori, Naoya Kanada, Kenji Tahara
  • Publication number: 20110245942
    Abstract: A terminal sets a search range that includes a player object and is smaller than a radar map range in an object space based on the position of the player object, and generates a radar map image that indicates the position of the player object and the position of an enemy object within the search range.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicant: NAMCO BANDAI GAMES INC.
    Inventors: Kazuo YAMAMOTO, Masayoshi NODA, Masaya AMANO, Yoshitaka INOUE, Kazuya WATANABE
  • Patent number: 7781999
    Abstract: A vehicle (100) includes a motor generator (MG) and an inverter (14) driving the motor generator (MG). A power source apparatus for the vehicle includes a battery (B) as an electric storage device, a step-up converter (12) stepping up a voltage of the electric storage device and supplying it to the inverter, and a controller (30) indicating a target step-up voltage in accordance with a target state of operation of the motor generator (MG) to the step-up converter (12). If it is determined that a current operation state signal of the motor generator (MG) is abnormal, the controller (30) increases the target step-up voltage to a maximum value. Preferably, the vehicle (100) further includes a resolver (20) detecting rotation speed of a rotor of motor generator (MG). The controller (30) determines that the operation state signal is abnormal if an output of the resolver (20) does not satisfy a prescribed condition.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: August 24, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaya Amano