Patents by Inventor Takashi Tetsuka

Takashi Tetsuka 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: 10151264
    Abstract: A remaining fuel amount warning device for a vehicle, the remaining fuel amount warning device giving a warning that an amount of fuel remaining in a fuel tank is smaller than a predetermined value on the basis of output of a fuel gauge measuring the remaining fuel amount, includes combustion state changing device for changing the combustion state of an engine. When the remaining fuel amount becomes smaller than the predetermined value, the remaining fuel amount warning device performs remaining amount warning control that produces vibration different than during normal operation by changing the combustion state of the engine by the combustion state changing device. A starter switch for starting the engine is made to serve also as a warning acknowledging button for stopping the remaining amount warning control for a predetermined time on the basis of an operation by an occupant.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: December 11, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Tetsuka, Yasumasa Matsui, Ryuta Niimura, Shunichi Miyagishi, Jun Adachi, Kosuke Kuroda
  • Publication number: 20180283476
    Abstract: A power transmission device for a vehicle includes a control unit adapted to automatically control engagement or disengagement of a clutch, and is further equipped with a clutch lever for manually engaging or disengaging the clutch. The power transmission device includes a manual mode in which the clutch is engaged or disengaged by a driver performing an engagement or disengagement operation with the clutch engagement/disengagement operating element and an automatic mode in which the clutch is engaged or disengaged under the control of the control unit without the driver performing the engagement or disengagement operation. The manual mode or the automatic mode is selectable by the driver. In the manual mode, it is further possible to select a plurality of control modes with differing levels of intervention of the automatic control.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 4, 2018
    Inventors: Hiroyuki Kojima, Yoshiaki Kazama, Hirohisa Takahashi, Takashi Tetsuka, Kenta Shuto
  • Publication number: 20180089908
    Abstract: A display device also includes an available amount-of-fuel calculator for calculating an available amount of fuel, an average mileage calculator for calculating an average mileage from a consumed amount of fuel and a vehicle's traveled distance, an available travel distance calculator for calculating an available travel distance from the available amount of fuel and the average mileage, and a display unit for displaying the available travel distance. The available amount-of-fuel calculator uses a learned value based on outputs as a corrective value for correcting the output of a second sensor when the calculation of the available amount of fuel switches from being based on the output of the second sensor to being based on the output of a first sensor.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 29, 2018
    Inventors: Kenta SHUTO, Takashi TETSUKA
  • Publication number: 20180079465
    Abstract: A vehicle driving force control device controls a driving force of an engine in accordance with an operation of a handlebar grip attached to a motorcycle. The handlebar grip is nonrotatably secured to a handlebar of the motorcycle. The vehicle driving force control device includes a strain gauge and a control section. The strain gauge acts as twisting force detection means for detecting a twisting force that is oriented in a normal rotation direction or in a reverse rotation direction and applied to the handlebar grip. The control section controls the driving force in accordance with the detected twisting force. The control section exercises control to increase the driving force in accordance with the twisting force oriented in the normal rotation direction.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 22, 2018
    Inventors: Takashi TETSUKA, Yoshihiro NOMURA
  • Patent number: 9869608
    Abstract: To show an image with minimal sense of discomfort felt by an occupant without quickening an updating cycle of an on-screen image, a virtual data generator making up a vehicle meter indicator device generates virtual data based on an arbitrary engine rotation speed between an engine rotation speed proportional to an image currently shown on a liquid crystal display device and a latest engine rotation speed rather than display data based on the latest engine rotation speed immediately before updating if the engine rotation speed declines. This allows the liquid crystal display device to show the generated virtual data on a liquid crystal panel as a virtual image for updating.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: January 16, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Tetsuka, Takeshi Kitajima
  • Patent number: 9802537
    Abstract: An approach notification device of a straddle type vehicle which can effectively notify a rider of an approaching state of an obstacle, the device including an obstacle detection device for detecting an obstacle located around a motorcycle as an vehicle, an approach determination device for detecting an approaching state that the obstacle is located within a predetermined distance from the vehicle, and a winker operation resistance increasing device for increasing operation resistance of a winker manipulator of a winker device provided in the vehicle. When the obstacle is determined to be within the predetermined distance by the approach determination device and the operation of the winker manipulator in the direction of the obstacle is detected, the winker operation resistance increasing device is operated to increase the operation resistance of the winker manipulator and vibrators located in a steering handle and a fuel tank are operated.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 31, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Tetsuka, Yasumasa Matsui, Ryuta Niimura, Syunichi Miyagishi, Jun Adachi, Kosuke Kuroda
  • Publication number: 20170306876
    Abstract: A remaining fuel amount warning device for a vehicle, the remaining fuel amount warning device giving a warning that an amount of fuel remaining in a fuel tank is smaller than a predetermined value on the basis of output of a fuel gauge measuring the remaining fuel amount, includes combustion state changing device for changing the combustion state of an engine. When the remaining fuel amount becomes smaller than the predetermined value, the remaining fuel amount warning device performs remaining amount warning control that produces vibration different than during normal operation by changing the combustion state of the engine by the combustion state changing device. A starter switch for starting the engine is made to serve also as a warning acknowledging button for stopping the remaining amount warning control for a predetermined time on the basis of an operation by an occupant.
    Type: Application
    Filed: September 11, 2015
    Publication date: October 26, 2017
    Inventors: Takashi Tetsuka, Yasumasa Matsui, Ryuta Niimura, Shunichi Miyagishi, Jun Adachi, Kosuke Kuroda
  • Patent number: 9638320
    Abstract: A shift position detecting device where a shift position determining member is provided for determining a shift position based on a combination of switching modes of three switches corresponding to at least one of a plurality of projection rows each having a plurality of projection portions in a one-by-one basis, and “1, 1, 1” indicative of an ON state of each switch is allocated as a detection logic at a neutral position arranged between a first speed position and a second speed position, wherein a change in friction at the time of a shift operational to the neutral position is alleviated thus giving an operational feeling with no discomfort to a rider. Two projection rows that are objects to be detected by two specified switches among the three switches are formed so as to change switching modes of the specified switches from an OFF state to an ON state.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: May 2, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Hotei, Takashi Tetsuka, Dai Arai, Atsushi Chiba
  • Patent number: 9487261
    Abstract: A motorcycle includes liquid crystal display device with a liquid crystal panel and a back light source, a main controller which receives predetermined inputs pertaining to a current operating state of the vehicle or to a rider's intended operations of the vehicle, and a sub-controller for controlling the back light source. The sub-controller is configured to switch the back light source from a normal output state to a low output state if none of the predetermined inputs are inputted to the main controller for at least a predetermined time period, and to switch the back light source back to the normal output state if at least one of the predetermined inputs is inputted to the main controller when the back light source is in the low output state. The predetermined inputs correspond to the rider's operation of control members of the saddle type vehicle when riding.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 8, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Tetsuka, Takeshi Kitajima
  • Patent number: 9383011
    Abstract: A shift position detecting device that determines a shift position based on a detection logic formed of a combination of turning on or off of a plurality of switches that are fixedly arranged at least one by one at positions corresponding to a plurality of detecting object portion rows mounted on a shift drum. An accurate shift position can be detected even if there is an irregularity in switching timings of switching modes of the plurality of switches. A shift position detecting member establishes the shift position as a new shift position and outputs shift position information, while when the detection logic after the transition is a detection logic other than the detection logic corresponding to the changeable shift position, sets the new shift position not yet established and outputs information corresponding to non-establishment of the shift position.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: July 5, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Tetsuka, Takashi Hotei, Dai Arai, Atsushi Chiba, Kenichi Tamura
  • Patent number: 9377648
    Abstract: A liquid crystal display device of a motorcycle is configured and arranged to rapidly warm up a liquid crystal panel at cool temperatures, without requiring an additional heating member. The liquid crystal display device includes a control unit, for controlling a liquid crystal panel, and a backlight. When the temperature of liquid crystal is lower than a predetermined value, or when it is within a fixed time period after turning on an ignition switch, as a warm-up period, the control unit increases power supplied to the backlight to a larger amount than that in a normal display state, to increase the amount of back light, and temporarily changes the entire display surface to a darker color, in order to increase the amount of light absorbed by the liquid crystal panel, simultaneously reducing the amount of light penetrating the display surface, and thereby speeding up warming of the liquid crystal panel.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 28, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Tetsuka, Takeshi Kitajima
  • Patent number: 9366407
    Abstract: In the present invention, an inner lens of a turn signal lamp is provided with: a lens cut part that inhibits the transmission of light travelling, when seen in a front view, linearly from a substrate toward an outer lens; a projection part that projects toward an LED; and an eave part that extends from the base end side of the projection part inwardly in the vehicle width direction. A harness that is electrically connected with the LED is connected to the substrate through a partial space that is surrounded by the substrate, the projection part, and the eave part.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: June 14, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nobuyuki Takenaka, Daisuke Kuriki, Hajime Soda, Takashi Tetsuka
  • Publication number: 20160090037
    Abstract: An approach notification device of a straddle type vehicle which can effectively notify a rider of an approaching state of an obstacle, the device including an obstacle detection device for detecting an obstacle located around a motorcycle as an vehicle, an approach determination device for detecting an approaching state that the obstacle is located within a predetermined distance from the vehicle, and a winker operation resistance increasing device for increasing operation resistance of a winker manipulator of a winker device provided in the vehicle. When the obstacle is determined to be within the predetermined distance by the approach determination device and the operation of the winker manipulator in the direction of the obstacle is detected, the winker operation resistance increasing device is operated to increase the operation resistance of the winker manipulator and vibrators located in a steering handle and a fuel tank are operated.
    Type: Application
    Filed: August 20, 2015
    Publication date: March 31, 2016
    Inventors: Takashi Tetsuka, Yasumasa Matsui, Ryuta Niimura, Syunichi Miyagishi, Jun Adachi, Kosuke Kuroda
  • Publication number: 20160033364
    Abstract: To show an image with minimal sense of discomfort felt by an occupant without quickening an updating cycle of an on-screen image, a virtual data generator making up a vehicle meter indicator device generates virtual data based on an arbitrary engine rotation speed between an engine rotation speed proportional to an image currently shown on a liquid crystal display device and a latest engine rotation speed rather than display data based on the latest engine rotation speed immediately before updating if the engine rotation speed declines. This allows the liquid crystal display device to show the generated virtual data on a liquid crystal panel as a virtual image for updating.
    Type: Application
    Filed: July 24, 2015
    Publication date: February 4, 2016
    Inventors: Takashi Tetsuka, Takeshi Kitajima
  • Patent number: 9216686
    Abstract: A lighting control system is provided with a blinker switch, a hazard switch, and a control circuit which controls the flashing of blinker lamps. The CPU of the control circuit, after detecting an input signal from one switch input port among a left side and a right side switch input port, determines that the hazard switch is switched on when an input signal from the other of the switch input ports is detected within a predetermined time, and determines that the blinker switch is switched on when no input signal from the other of the switch input ports is detected.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: December 22, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Tetsuka, Hajime Soda, Nobuyuki Takenaka, Kenichi Shiratori
  • Patent number: 9132771
    Abstract: A turn signal canceling device for a motorcycle includes a straight-ahead travel or turn determining unit for determining whether the motorcycle is travelling straight ahead or is turning and a turn signal cancellation controller which automatically cancels turn signal operation. When a vehicle speed is not greater than a predetermined speed and a driving force is at least a predetermined driving force at a time the straight-ahead travel or turn determining unit determines that the motorcycle is turning, the turn signal cancellation controller enters a standby state. When the straight-ahead travel or turn determining unit determines that the motorcycle is travelling straight ahead during the standby state, the turn signal cancellation controller automatically deactivates a turn signal. When the driving force becomes smaller than the predetermined driving force or turn signal becomes manually deactivated during the standby state, the turn signal cancellation controller returns to the normal operating state.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: September 15, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Tetsuka, Takashi Hotei
  • Patent number: 9086282
    Abstract: A straight-traveling/turning determination device includes a straight-traveling/turning determiner that determines whether a motorcycle is traveling straight or turning by comparison between a threshold and a rotary speed comparison value that is a value resulting from comparison between the rotary speed of a front wheel and the rotary speed of a rear wheel. The straight-traveling/turning determiner uses the rotary speed comparison value in the state in which the vehicle speed is equal to or lower than first predetermined speed and an absolute value of the vehicle acceleration is equal to or lower than predetermined acceleration and a turn signal is not being actuated as a straight-traveling rotary speed comparison value, and determines that the motorcycle is turning if a ratio or difference between the rotary speed comparison value and the straight-traveling rotary speed comparison value becomes larger than a threshold.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 21, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Takashi Tetsuka
  • Publication number: 20150185545
    Abstract: A liquid crystal display device of a motorcycle is configured and arranged to rapidly warm up a liquid crystal panel at cool temperatures, without requiring an additional heating member. The liquid crystal display device includes a control unit, for controlling a liquid crystal panel, and a backlight. When the temperature of liquid crystal is lower than a predetermined value, or when it is within a fixed time period after turning on an ignition switch, as a warm-up period, the control unit increases power supplied to the backlight to a larger amount than that in a normal display state, to increase the amount of back light, and temporarily changes the entire display surface to a darker color, in order to increase the amount of light absorbed by the liquid crystal panel, simultaneously reducing the amount of light penetrating the display surface, and thereby speeding up warming of the liquid crystal panel.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 2, 2015
    Inventors: Takashi TETSUKA, Takeshi KITAJIMA
  • Publication number: 20150183481
    Abstract: A motorcycle includes liquid crystal display device with a liquid crystal panel and a back light source, a main controller which receives predetermined inputs pertaining to a current operating state of the vehicle or to a rider's intended operations of the vehicle, and a sub-controller for controlling the back light source. The sub-controller is configured to switch the back light source from a normal output state to a low output state if none of the predetermined inputs are inputted to the main controller for at least a predetermined time period, and to switch the back light source back to the normal output state if at least one of the predetermined inputs is inputted to the main controller when the back light source is in the low output state. The predetermined inputs correspond to the rider's operation of control members of the saddle type vehicle when riding.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 2, 2015
    Inventors: Takashi TETSUKA, Takeshi KITAJIMA
  • Patent number: 9002577
    Abstract: A turn signal cancelling device for a motorcycle includes turn signal cancellation control unit configured to automatically deactivate a second turn signal after a second predetermined time has passed or after the motorcycle has travelled a second predetermined distance since an activation the second turn signal. The turn signal cancellation control unit is configured to automatically deactivate the second turn signal in a case where the activation of the second turn signal is performed before a first predetermined time has passed or before the motorcycle has travelled a first predetermined distance since an activation of a first turn signal is performed when a vehicle speed is equal to or higher than a predetermined speed.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: April 7, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Tetsuka, Mana Hayashi