Patents by Inventor Kohei Maruyama

Kohei Maruyama 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: 8770060
    Abstract: Disclosed is a reaction force pedal device provided with pedal members operated by a driver, a motor which applies a reaction force to the pedal members through an arm member which is always connected to the pedal members, and a clutch arranged between the motor and the arm member. When the pedal members are displaced, the clutch is temporarily released.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 8, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kohei Maruyama, Naoto Sen, Hideto Nebuya, Toru Ebara
  • Publication number: 20140116379
    Abstract: A reaction force control unit calculates a driver's requested output and then estimates a maximum output that can be generated by an engine in a current cylinder deactivation operation. Next, the reaction force control unit calculates a difference between the maximum output and the requested output as an output difference and then determines whether the output difference has reached a predetermined reaction force start threshold value, and if the determination result is Yes, the reaction force control unit estimates a number of to-be-reactivated cylinders on the basis of the output difference and the current cylinder deactivation operation state. Subsequently, the reaction force control unit sets a target reaction force on the basis of the output difference and the number of to-be-reactivated cylinders, and outputs drive current to a reaction force actuator.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 1, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kohei Maruyama, Toshihiko Sato, Takayuki Yoshimura, Hideto Nebuya, Naoto Sen, Susumu Iwamota, Kenji Hattori
  • Publication number: 20140109717
    Abstract: An accelerator pedal reaction force control device for controlling a depression reaction force of an accelerator pedal provided to a motor vehicle, the control device including: a reaction force actuator that provides the accelerator pedal with a depression reaction force; a target reaction force setting unit that sets a target depression reaction force; and a vehicle speed maintenance depression amount setting unit that sets an amount of depression of the accelerator pedal for maintaining a current vehicle speed as a vehicle speed maintenance depression amount, wherein, when a pedal depression amount exceeds the vehicle speed maintenance depression amount, the target reaction force setting unit performs a cruise assist whereby the target depression reaction force is set to a value of a cruise assist depression reaction force.
    Type: Application
    Filed: June 13, 2012
    Publication date: April 24, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kohei Maruyama, Naoto Sen, Hideto Nebuya, Toshihiko Sato, Takayuki Yoshimura, Go Suzaki, Hirotaka Takiguchi, Masaru Kanda
  • Patent number: 8532900
    Abstract: An accelerator pedal device for a vehicle, performing a pedal reaction force control method. The accelerator pedal device is provided with an engine speed detection unit that detects the engine speed (Ne) and a reaction force control unit that controls, on the basis of the engine speed (Ne), a pedal reaction force (Fr) applied by a reaction force application unit. The reaction force control unit limits the reduction ratio of the pedal reaction force (Fr) when the reduction ratio of the engine speed (Ne) is greater than or equal to a predetermined value.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 10, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kohei Maruyama, Yutaka Horiuchi, Takashi Yanagi, Hiroaki Sasaki
  • Publication number: 20130152725
    Abstract: Disclosed is a reaction force pedal device provided with pedal members operated by a driver, a motor which applies a reaction force to the pedal members through an arm member which is always connected to the pedal members (20, 22), and a clutch arranged between the motor and the arm member. When the pedal members are displaced, the clutch is temporarily released.
    Type: Application
    Filed: August 8, 2011
    Publication date: June 20, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kohei Maruyama, Naoto Sen, Hideto Nebuya, Toru Ebara
  • Patent number: 8463506
    Abstract: Provided is a rear wheel toe angle control system that can prevent the impairment of the tracking performance of the electric actuator and enable the rear wheel toe angle control system to ensure the stability of the vehicle even when the electric actuator for steering the rear wheel according to the operating condition of the vehicle is subjected to an axial force. An ECU (12) serving as a rear wheel toe angle control unit for variably controlling the rear wheel toe angle (?r) of the motor vehicle (V) by using an electric actuator (11) is provided with a duty ratio correcting unit (25) that corrects the target duty ratio (Dtgt) for achieving the target rear wheel toe angle (?rtgt) according to the load condition of the electric actuator (11) that depends on the lateral acceleration (Gy) of the motor vehicle (V).
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: June 11, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Yanagi, Akiyoshi Kobayashi, Shogo Nishizawa, Yutaka Horiuchi, Kohei Maruyama
  • Publication number: 20120253624
    Abstract: An accelerator pedal device for a vehicle, performing a pedal reaction force control method. The accelerator pedal device is provided with an engine speed detection unit that detects the engine speed (Ne) and a reaction force control unit that controls, on the basis of the engine speed (Ne), a pedal reaction force (Fr) applied by a reaction force application unit. The reaction force control unit limits the reduction ratio of the pedal reaction force (Fr) when the reduction ratio of the engine speed (Ne) is greater than or equal to a predetermined value.
    Type: Application
    Filed: July 6, 2011
    Publication date: October 4, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Kohei Maruyama, Yutaka Horiuchi, Takashi Yanagi, Hiroaki Sasaki
  • Publication number: 20110313624
    Abstract: Provided is a rear wheel toe angle control system that can prevent the impairment of the tracking performance of the electric actuator and enable the rear wheel toe angle control system to ensure the stability of the vehicle even when the electric actuator for steering the rear wheel according to the operating condition of the vehicle is subjected to an axial force. An ECU (12) serving as a rear wheel toe angle control unit for variably controlling the rear wheel toe angle (?r) of the motor vehicle (V) by using an electric actuator (11) is provided with a duty ratio correcting unit (25) that corrects the target duty ratio (Dtgt) for achieving the target rear wheel toe angle (?rtgt) according to the load condition of the electric actuator (11) that depends on the lateral acceleration (Gy) of the motor vehicle (V).
    Type: Application
    Filed: March 9, 2010
    Publication date: December 22, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takashi Yanagi, Akiyoshi Kobayashi, Shogo Nishizawa, Yutaka Horiuchi, Kohei Maruyama
  • Publication number: 20030059823
    Abstract: A hybridization apparatus includes at least (A) a reaction station having a reaction vessel holder, a heating-cooling device, and a magnetic force controller, (B) a tip rack/waste solution station having a tip rack and a waste solution reservoir, (C) a washing solution station having a washing solution reservoir and a heating-cooling device, and (D) a head station having an arm unit movable in X-Z directions, the arm unit including a tip setting mechanism having a 1o plurality of tip nozzles for respective tips to be attached to or detached from, and a mechanism for the attached tips to suck and inject treatment solution.
    Type: Application
    Filed: September 18, 2002
    Publication date: March 27, 2003
    Applicant: Juki Corporation
    Inventors: Tadashi Matsunaga, Kiyoshi Yoda, Yuji Udagawa, Etsuo Nemoto, Kohei Maruyama