Patents by Inventor Keisuke Takeuchi

Keisuke Takeuchi 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: 20150127200
    Abstract: A driving force control system for a vehicle having a mechanism for changing an engine speed continuously. The driving force control system basically controls said mechanism in a manner such that the engine speed is adjusted to optimize fuel economy. The driving force control system is configured to determine an index representing a demand to enhance agility of behavior of the vehicle based on an actual behavior of the vehicle or an amount of operation carried out by a driver to cause said behavior. An upper limit value of the engine speed of the case in which a drive demand is increased is determined on the basis of the index, and the upper limit value is set to the higher value with an increase in the index representing the demand to enhance agility of behavior of the vehicle.
    Type: Application
    Filed: September 27, 2011
    Publication date: May 7, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Takeshi Hayashi, Yoshimitsu Agata, Toshio Tanahashi, Shin Noumura, Kazuo Tsuruoka, Hiroki Kaneko, Tomoyuki Honda
  • Patent number: 9002578
    Abstract: A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: April 7, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shin Noumura, Kaiji Itabashi, Toshio Tanahashi, Keisuke Takeuchi, Yoshimitsu Agata, Tomohide Kawasaki
  • Patent number: 8972087
    Abstract: A vehicle control system includes: a controller that configured to obtain an index on the basis of a running condition of a vehicle and that configured to vary a running characteristic of the vehicle on the basis of the index, wherein the controller is configured to relatively delay a variation in the index in response to a variation in the running condition when the variation in the index decreases quickness of a behavior of the vehicle as compared with when the variation in the index increases the quickness of the behavior of the vehicle, and to correct the running characteristic on the basis of the index so that energy efficiency of a driving force source of the vehicle varies within a predetermined range depending on control over power output from the driving force source.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: March 3, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Yoshimitsu Agata, Ken Koibuchi, Kaiji Itabashi, Shin Noumura
  • Patent number: 8954232
    Abstract: A vehicle control system includes a control portion configured to determine a single parameter based on a running condition of a vehicle, and determine control amounts for a plurality of actuators provided in the vehicle based on the parameter. A relation of the control amount for each of the plurality of actuators to the parameter is predetermined. The control portion is configured to, when the parameter is determined, determine the control amounts for the respective actuators based on the parameter, and control the actuators based on the determined control amounts.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: February 10, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Youji Kanehara, Toshio Tanahashi, Yoshimitsu Agata, Tomohide Kawasaki, Ken Koibuchi, Kaiji Itabashi, Shin Noumura
  • Publication number: 20150039198
    Abstract: A driving force control device of a vehicle is provided which is configured to calculate a required braking force on the basis of an amount of pressure applied to a brake operating mechanism, which is operated for deceleration by a driver, and to control a braking force of a power plant, which includes a drive source generating an accelerating force and a braking force, and a braking force of a braking mechanism, which generates a braking force with the operation of the braking operating mechanism, in cooperation so that the total braking force of the vehicle as a whole becomes the required braking force. The driving force control device is configured to detect acceleration information including a lateral acceleration of the vehicle and to control the braking force of the power plant on the basis of the detected acceleration information when the brake operating mechanism is operated.
    Type: Application
    Filed: February 26, 2012
    Publication date: February 5, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Kazuo Tsuruoka, Toshio Tanahashi, Yoshimitsu Agata, Hiroki Kaneko, Yoji Kanehara
  • Patent number: 8930085
    Abstract: A control system for a vehicle, includes: a controller that is configured to obtain an index on the basis of a running condition of the vehicle, to vary a running characteristic of the vehicle on the basis of the index, and to vary details output from an effect producing device, which applies a stimulus to at least part of five senses of a driver of the vehicle, on the basis of the index, wherein when a variation in the running characteristic because of a variation in the index decreases, quickness of a behavior of the vehicle, the variation in the index in response to a variation in the running condition is relatively delayed, as compared with when the variation in the running characteristic because of the variation in the index increases quickness of the behavior of the vehicle.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: January 6, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Shinichi Sano, Yoshimitsu Agata, Toshihiro Yamazaki, Shin Noumura
  • Publication number: 20140364122
    Abstract: When a femto cell base station detects an intense uplink interference, the femto cell base station autonomously extends the femto cell so as to raise a probability that a mobile terminal around the original femto cell may be connected to the femto cell base station. If the mobile terminal connects to the femto cell base station, the uplink interference is reduced and total throughput is improved. Additionally, if a resultant effect of interference reduction is low, the femto cell base station returns the mobile terminal, which is connected to the femto cell base station due to the extension of the femto cell, to the original connection destination. If an evaluative criterion meets a predetermined condition, the femto cell base station restores the extended femto cell to the original size. These actions prevent degradation of performance caused by concentration of the connections of mobile terminals to the femto cell base station.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Keisuke TAKEUCHI, Rintaro KATAYAMA
  • Patent number: 8909386
    Abstract: In a vehicle control system, an index used to set a running characteristic of a vehicle is obtained based on a running condition of the vehicle. A change of the index that makes behavior of the vehicle crisper is more likely to occur than a change of the index that makes the behavior of the vehicle milder. When it is determined that the vehicle is in a turning condition, the change of the index or a change of the miming characteristic based on the index is less likely to occur than when it is determined that the vehicle is not in the turning condition.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Hiroyuki Hanamura, Shin Noumura, Ken Koibuchi, Kaiji Itabashi, Yoji Takanami, Norimi Asahara
  • Patent number: 8903619
    Abstract: In a vehicle control system that obtains an index based on a running condition of a vehicle and changes a running characteristic of the vehicle according to the index, includes index setting means for making a change in the index in response to a change in the running condition in a direction toward crisp running of the vehicle, faster than a change in the index in response to a change in the running condition in such a direction as to reduce crispness with which the vehicle is running.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: December 2, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shin Noumura, Ken Koibuchi, Kaiji Itabashi, Toshio Tanahashi, Keisuke Takeuchi, Hiroyuki Hanamura, Yoji Takanami, Norimi Asahara
  • Publication number: 20140343815
    Abstract: A vehicle control system configured to estimate an index representing a driving condition of a vehicle and a driving preference of a driver based on acceleration of the vehicle, and to adjust a driving characteristics of the vehicle based on the index. The vehicle control system is comprised of a straight-line braking determining means configured to determine a fact that a braking operation of the vehicle is carried out under a condition that the vehicle travels in a straight line, and an operational disturbance reducing means that prevents or reduces an effect of a disturbance resulting from the straight-line braking of the vehicle on an adjustment of the driving characteristics of the vehicle.
    Type: Application
    Filed: September 13, 2011
    Publication date: November 20, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Yoshimitsu Agata, Tomohide Kawasaki, Shin Noumura
  • Patent number: 8849281
    Abstract: When a femto cell base station detects an intense uplink interference, the femto cell base station autonomously extends the femto cell so as to raise a probability that a mobile terminal around the original femto cell may be connected to the femto cell base station. If the mobile terminal connects to the femto cell base station, the uplink interference is reduced and total throughput is improved. Additionally, if a resultant effect of interference reduction is low, the femto cell base station returns the mobile terminal, which is connected to the femto cell base station due to the extension of the femto cell, to the original connection destination. If an evaluative criterion meets a predetermined condition, the femto cell base station restores the extended femto cell to the original size. These actions prevent degradation of performance caused by concentration of the connections of mobile terminals to the femto cell base station.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: September 30, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Takeuchi, Rintaro Katayama
  • Publication number: 20140257662
    Abstract: A vehicle control system for adjusting control characteristics governing behaviors of a vehicle in accordance with a driving preference of a driver. The vehicle control system is comprised of a shifting means that shifts a driving mode of the vehicle between a first mode in which a driving force to be generated is moderated and a second mode in which a driving force to be generated is larger than that generated under the first mode, upon exceedance of a predetermined threshold value by an index that is changed according to a change in a behavior of the vehicle resulting from an accelerating or a decelerating operation executed by the driver. The threshold value is set to a limit value of acceleration for human beings to sense a linear change in the acceleration from zero.
    Type: Application
    Filed: August 29, 2011
    Publication date: September 11, 2014
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Yoshimitsu Agata, Tomohide Kawasaki, Shin Noumura
  • Patent number: 8811286
    Abstract: Timing division multiplexing is conducted between the cells to avoid intercell interference. Transmission timing in a time slot pattern has a given interval. A base station determines the transmission timing based on measured uplink interference power. For example, an uplink time slot pattern in which the measured uplink interference power is smaller is selected. A downlink time slot pattern is assigned so that a response to HARQ is returned at that timing. If traffic is busy, additional time slot pattern may be assigned. In determination of the traffic volume, for example, the queued buffer size, the number of connected terminals, or the number of connections to a higher-level device can be used. Assignment timing can be an initial setup time, or a fluctuation detection time of a channel which can be realized by collection of report information on a downlink communication quality, periodic monitor of uplink interference information.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: August 19, 2014
    Assignee: Hitachi Ltd.
    Inventors: Tomonori Yamamoto, Rintaro Katayama, Keisuke Takeuchi
  • Publication number: 20140222296
    Abstract: A vehicle control system vehicle control system configured to adjust a control characteristic of a vehicle in accordance with a driving preference of a driver. The vehicle control system detects an intentional operation of the driver based on a pattern of a change in a speed of an operation carried out by the driver to change a driving condition of the vehicle, and judges the driving preference on the basis of: a correlation of operational preference determining a correlation among an operating amount, an operating time and an operating preference; an operating amount of the intentional operation; and an operating time of the intentional operation. Therefore, the driving preference can be judged immediately when the driver carries out an operation to change a driving condition of the vehicle based on the operating time and the operating amount. The judged driving preference is reflected on the control characteristic of the vehicle immediately.
    Type: Application
    Filed: July 20, 2011
    Publication date: August 7, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Yoji Kanehara, Toshio Tanahashi, Yoshimitsu Agata, Tomohide Kawasaki
  • Publication number: 20140207334
    Abstract: A vehicle control system configured to judge a vehicle behavior or a driving preference of a driver based on acceleration of the vehicle including at least longitudinal acceleration. An acceleration value used in the judgment is obtained on the basis of a weighted detection value of the actual longitudinal acceleration of the vehicle, and a weighted parameter which is varied by an operation to increase a driving force of the vehicle executed by the driver. A weight on the parameter is reduced in case a weight on the detection value of the longitudinal acceleration is increased, and the weight on the parameter is increased in case the weight on the detection value of the longitudinal acceleration is reduced.
    Type: Application
    Filed: July 20, 2011
    Publication date: July 24, 2014
    Inventors: Shin Noumura, Kaiji Itabashi, Toshio Tanahashi, Keisuke Takeuchi, Yoshimitsu Agata, Tomohide Kawasaki
  • Publication number: 20140195090
    Abstract: A driving force control system for vehicle for controlling a target speed of an engine serving as a prime mover by selecting a control mode based on an index representing a driving preference of a driver. The control mode is selected from a first mode for operating the engine to achieve the target speed while optimizing a fuel economy, and a second mode for operating the engine to achieve the target speed at a speed lower than that achieved while optimizing the fuel economy. The driving force control system is configured to determine a lower limit speed of the engine based on the index provided that the second mode is selected, and to restrict a lower limit value of the target speed of the engine to the lower limit speed in case the target speed of the engine exceeds the lower limit speed under the second mode.
    Type: Application
    Filed: September 20, 2011
    Publication date: July 10, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Kazuo Tsuruoka, Toshio Tanahashi, Yoshimitsu Agata, Hiroki Kaneko, Koji Tsurumura
  • Patent number: 8775040
    Abstract: A vehicle control system obtains an index indicating a running condition of a vehicle on the basis of a vehicle parameter indicating a motion of the vehicle and then sets a running characteristic of the vehicle in accordance with the index. The vehicle control system includes a noise reduction unit that is configured to obtain the index on the basis of the vehicle parameter of which a fluctuating component that fluctuates because of a driver's driving operation or the influence of a running road surface.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 8, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shin Noumura, Ken Koibuchi, Keisuke Takeuchi, Toshio Tanahashi, Hiroyuki Hanamura, Yoji Takanami, Norimi Asahara, Kaiji Itabashi
  • Publication number: 20140129089
    Abstract: A steering system includes: a steering member that is provided on a vehicle and that is used for a steering operation; an actuator that assists the steering operation of the steering member; and a steering control device that executes returning operation assist control in which the actuator is controlled to assist a returning operation for returning the steering member to a neutral position, the returning operation corresponding to a turning operation for turning the steering member from the neutral position, and that determines a returning operation time at the time of executing the returning operation assist control on the basis of a steering operation amount of the steering member at the time of the turning operation.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 8, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Takeuchi, Yoji Kanehara, Toshio Tanahashi, Yoshimitsu Agata, Tomohide Kawasaki
  • Patent number: 8520612
    Abstract: A method for radio resource control is carried out in a radio communications system including multiple base stations. In this method, a radio resource that can be used by the base stations is divided into multiple first radio resources on the frequency axis. Then one or more of the first radio resources are allocated to a second radio resource for initially transmitting a packet and the other first radio resources are allocated to a third radio resource for retransmitting the packet.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: August 27, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Tomonori Yamamoto, Rintaro Katayama, Keisuke Takeuchi, Koki Uwano
  • Patent number: 8521338
    Abstract: A vehicle control system capable of improving drivability by reflecting driving environment and driving preference accurately on driving characteristics. The vehicle control system is configured to change an index for setting driving characteristics of the vehicle. When accelerations Gx and Gy are changed, a sportiness index is changed in a different manner depending on a detail of an operation for changing accelerations Gx and Gy executed by a driver, thereby reflecting the driving preference of the driver appearing on the operation can be reflected on sportiness of the vehicle.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: August 27, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Takeuchi, Toshio Tanahashi, Ken Koibuchi, Kaiji Itabashi, Shin Noumura, Hiroyuki Hanamura, Yoji Takanami, Norimi Asahara