Patents by Inventor Ken Kuretake

Ken Kuretake 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: 20040070372
    Abstract: In a control system of a regeneration system, electric power generated by a first electric generator is supplied to a first electric power storing device, and electric power is transmitted, via an intermediary device, between the first electric power storing device and a second electric power storing device which is provided separately from the first electric power storing device. The control system of a regeneration system includes determination means for determining whether or not an electric power generation amount of the first electric generator is equal to or larger than a predetermined amount, and electric power storing performance control means for determining whether or not the electric power of the second electric power storing device is to be supplied to the first electric power storing device via the intermediary device based on a determination result of the determination means.
    Type: Application
    Filed: March 20, 2003
    Publication date: April 15, 2004
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Kawai, Hiroshi Tsujii, Ken Kuretake, Masanori Sugiura, Hideto Hanada
  • Patent number: 6668224
    Abstract: A vehicle includes an internal combustion engine that is variably connected, for example, via a mechanical clutch, to a drive train including a transmission. The vehicle also has a functional device operated by a torque generated by the internal combustion engine. A load applied by the functional device on the internal combustion engine when the drive train and the engine are engaged during deceleration of the vehicle and a speed of the internal combustion engine is lower than a predetermined value is controlled such that the load is reduced to a first value lower than a second value of the load applied to the engine when the speed of the internal combustion engine is equal to or higher than the predetermined value.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: December 23, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawai, Hiroshi Tsujii, Ken Kuretake, Masanori Sugiura, Hideto Hanada
  • Publication number: 20030210017
    Abstract: In order to provide a storage battery control apparatus capable of increasing the amount of charges stored in a storage battery, an aspect of the storage battery control apparatus of the invention is a storage battery control apparatus having: a first controller that releases charges stored in a capacitor that forms a storage battery if an inter-terminal voltage of the capacitor becomes equal to or higher than a predetermined threshold; a temperature detector that detects a temperature of the capacitor; and a second controller that changes the predetermined threshold in accordance with the temperature of the capacitor.
    Type: Application
    Filed: April 21, 2003
    Publication date: November 13, 2003
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Tsujii, Hideto Hanada, Ken Kuretake, Masanori Sugiura, Takashi Kawai
  • Publication number: 20030191574
    Abstract: The braking force control apparatus for a vehicle which has a function of applying a braking force to the vehicle by rotational resistance of the engine, by stopping the fuel supply to the engine during coasting of the vehicle and by controlling a torque capacity of a torque capacity control device that is provided between the engine and a wheel so that the torque capacity becomes equal to or higher than a predetermined value, and of decreasing the torque capacity of the torque capacity control device when a predetermined condition is satisfied, and has a function of applying the braking force to the vehicle by a function of an electric power generator which is coupled with the wheel such that power can be transmitted. The braking force control apparatus includes braking force control means which increases a braking force that is generated by the function of the electric power generator when the torque capacity of the torque capacity control device is decreased.
    Type: Application
    Filed: March 20, 2003
    Publication date: October 9, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawai, Hiroshi Tsujii, Ken Kuretake, Masanori Sugiura, Hideto Hanada
  • Patent number: 6608394
    Abstract: In the case of an engine automatic stop and start system in which an engine is stopped while a vehicle is stopped and the engine is started when the vehicle is started, it is necessary to shorten an engine starting time when a driver desires to move the vehicle. Further, it is desirable to efficiently compensate the electric power consumed by the starter. The vehicle contains an existing low voltage power source and a high voltage power source with an excellent charging efficiency. When the engine switches from a running condition to a stopped condition while the vehicle is stopped, a change-over switch switches and applies the voltage of the high voltage power source to a starter motor. This causes the starter motor to rotate at high speeds, thereby starting the engine very quickly. Therefore, it is possible to reduce overall energy losses and improve vehicle fuel consumption.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: August 19, 2003
    Assignee: Denso Corporation
    Inventors: Masahiko Osada, Masato Hanai, Masanori Ohmi, Mikio Saito, Shuuichi Nagata, Takeshi Tachibana, Ken Kuretake, Hideto Hanada
  • Publication number: 20030141123
    Abstract: A control system for a vehicle power supply for supplying power to a predetermined power receiving portion includes a first power generating power supply portion, second power generating power supply portion, and controller. The controller is arranged to set the voltage to be output to the power receiving portion from one of the power generating power supply portions in accordance with the output voltage of the other of the power generating power supply portions. With this arrangement, the power receiving portion is prevented from being supplied with an excessive amount of power, and when power regeneration is being performed by the second power generating power supply portion, the regenerated power is effectively used. Thus, the fuel economy of the vehicle can be increased.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 31, 2003
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masanori Sugiura, Hiroshi Tsujii, Ken Kuretake, Hideto Hanada, Takashi Kawai
  • Publication number: 20030139859
    Abstract: A control apparatus for use in a vehicle for controlling an energy storage device adapted to discharge electric power that varies with a temperature is provided. The control apparatus includes a temperature sensor that measures a temperature associated with the energy storage device, and a voltage control unit that sets a minimum storage voltage of the energy storage device to a relatively high voltage level when the temperature measured by the temperature sensor is lower than a predetermined temperature, as compared with a voltage level to which the minimum storage voltage is set when the temperature is higher than the predetermined temperature.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 24, 2003
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideto Hanada, Hiroshi Tsujii, Takashi Kawai, Masanori Sugiura, Ken Kuretake
  • Patent number: 6561162
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: May 13, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Publication number: 20030041830
    Abstract: A control apparatus and method of an internal combustion engine performs a predetermined stop control of the engine that includes a control to stop the supply of fuel to the engine upon establishment of a predetermined stop condition, and a re-start control that includes a control to restart the supply of fuel to the engine in response to the establishment of a predetermined re-start condition. The apparatus has a stop control discontinuing device for discontinuing the stop control if the re-start condition is established within a predetermined period between establishment of the stop condition and a stop of the engine.
    Type: Application
    Filed: August 12, 2002
    Publication date: March 6, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masanori Sugiura, Hiroshi Tsujii, Ken Kuretake, Hideto Hanada, Takashi Kawai, Tomohiro Kaneko
  • Publication number: 20030037748
    Abstract: A control system of an internal combustion engine controls the starting of an internal combustion engine, which has been stopped, based on the establishment of a predetermined starting condition. The control system is provided with at least two power sources, a low-voltage power source and a high-voltage power source, a starting mechanism that is driven by the power source so as to operate the internal combustion engine, and a switching mechanism for switching between a connection, of the starting mechanism, to the low-voltage power source and a connection, of the starting mechanism, to the high-voltage power source.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 27, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawai, Hiroshi Tsujii, Ken Kuretake, Masanori Sugiura, Hideto Hanada
  • Publication number: 20030033068
    Abstract: A vehicle includes an internal combustion engine that is variably connected, for example, via a mechanical clutch, to a drive train including a transmission. The vehicle also has a functional device operated by a torque generated by the internal combustion engine. A load applied by the functional device on the internal combustion engine when the drive train and the engine are engaged during deceleration of the vehicle and a speed of the internal combustion engine is lower than a predetermined value is controlled such that the load is reduced to a first value lower than a second value of the load applied to the engine when the speed of the internal combustion engine is equal to or higher than the predetermined value.
    Type: Application
    Filed: July 24, 2002
    Publication date: February 13, 2003
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Kawai, Hiroshi Tsujii, Ken Kuretake, Masanori Sugiura, Hideto Hanada
  • Patent number: 6502548
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: January 7, 2003
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Patent number: 6494181
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: December 17, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Publication number: 20020139348
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Application
    Filed: July 30, 2001
    Publication date: October 3, 2002
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Publication number: 20020134352
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Application
    Filed: July 30, 2001
    Publication date: September 26, 2002
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Publication number: 20020070555
    Abstract: In the case of an engine automatic stop and start system in which an engine is stopped while a vehicle is stopped and the engine is started when the vehicle is started, it is necessary to shorten an engine starting time when a driver desires to move the vehicle. Further, it is desirable to efficiently compensate the electric power consumed by the starter. The vehicle contains an existing low voltage power source and a high voltage power source with an excellent charging efficiency. When the engine switches from a running condition to a stopped condition while the vehicle is stopped, a change-over switch switches and applies the voltage of the high voltage power source to a starter motor. This causes the starter motor to rotate at high speeds, thereby starting the engine very quickly. Therefore, it is possible to reduce overall energy losses and improve vehicle fuel consumption.
    Type: Application
    Filed: November 23, 2001
    Publication date: June 13, 2002
    Applicant: DENSO CORPORATION
    Inventors: Masahiko Osada, Masato Hanai, Masanori Ohmi, Mikio Saito, Shuuichi Nagata, Takeshi Tachibana, Ken Kuretake, Hideto Hanada
  • Publication number: 20010039940
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Application
    Filed: July 30, 2001
    Publication date: November 15, 2001
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Patent number: 6293249
    Abstract: A control unit for detecting an opening of an accelerator and an opening of the throttle valve to operate the throttle valve via a motor, sets a commanded value of an opening of the throttle valve at each of first predetermined cycles in accordance with an of the accelerator. A first opening/closing velocity is set in accordance with the set commanded value, a present opening of the throttle valve is read at each of second cycles shorter than the first predetermined cycles, the motor is rotated to open/close the throttle valve to follow a first predicted opening of the throttle valve until the opening of the throttle valve is smaller than the commanded value by a predetermined quantity, and the motor is caused to open/close the throttle valve to follow a second predicted opening of the throttle valve which is smaller than the first predicted opening of the throttle valve after the cycle when the opening of the throttle valve has been made smaller than the commanded value by a predetermined quantity.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: September 25, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ken Kuretake
  • Patent number: 6014955
    Abstract: An air-amount-first fuel-amount-second control apparatus for an internal combustion engine having an electronically-controlled throttle valve. The response characteristic of the throttle valve is stored, a target value of the throttle valve opening degree corresponding to the operating position of the accelerator pedal is calculated, the intake air valve closing time of the fuel injection cylinder is calculated in accordance with the engine operating condition, the time required for reaching a target throttle valve opening degree is calculated from the target throttle valve opening degree and the stored value of the response characteristic of the throttle valve, the throttle valve opening degree as of the intake air valve closing time is calculated from the calculated time required for reaching the target throttle valve opening degree and the intake air valve closing time of the fuel injection cylinder.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: January 18, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ichiro Hosotani, Hiroshi Tanaka, Naohide Fuwa, Iwao Maeda, Shigeo Kikori, Ken Kuretake