Patents Assigned to Transtron, Inc.
  • Patent number: 8880307
    Abstract: A coasting control device for avoiding dangerous modes such as tire lock up upon the end of coasting control. The device, which performs coasting control to disengage the clutch and to reduce the engine revolutions per minute (RPM), also prevents a gearshift operation during coasting control.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: November 4, 2014
    Assignees: Isuzu Motors Limited, Transtron Inc.
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Patent number: 8855887
    Abstract: A coasting control device capable of avoiding coasting control during turning is provided. A turning recognition unit that recognizes that a vehicle is turning and a unit for prohibiting coasting control during turning that prohibits coasting control when the turning recognition unit recognizes that the vehicle is turning are provided.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 7, 2014
    Assignees: Isuzu Motors Limited, Transtron Inc.
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20140292539
    Abstract: An information providing apparatus includes a unit that presents an effectiveness of introducing a service of informing a driver during driving of information related to a point where hard braking is apt to happen, by comparing driving data when the service is provided and driving data when the service is not provided, and outputting a comparison result.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicants: TRANSTRON INC., FUJITSU LIMITED
    Inventors: Kiyohide Omiya, Takashi Shimada, Tsutomu Ohta, Hironobu Hase, Tomoyuki Tsuda, Masayoshi Hoshiya
  • Publication number: 20140292072
    Abstract: Provided is a battery monitoring system including a plurality of batteries connected in series, a current/voltage measuring unit configured to measure an electric current and a voltage of a first battery in response to a measurement instruction, and a plurality of voltage measuring units configured to measure a voltage of a second battery other than the first battery in response to a measurement instruction. The voltage measuring units are connected to the current/voltage measuring unit with a daisy-chain connection by a communication interface, and the current/voltage measuring unit and the voltage measuring unit transfer the measurement instruction to another voltage measuring unit through the daisy-chain connection.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicants: TRANSTRON INC, FUJITSU LIMITED
    Inventors: Masanori Nakanishi, Kazuyoshi Tsukada, Jun Sasaki
  • Publication number: 20140297078
    Abstract: An operation control unit and a driving control unit mutually monitor an operation state of each other, and when a first control unit detects an error of the other (second) control unit, the first control unit performs a driving control on driving sources, at a speed more limited than that in a normal mode based on an operation signal.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicants: FUJITSU LIMITED, TRANSTRON INC, FUJITSU TEN LIMITED
    Inventors: Keiichi Yonezaki, Shinji Nakamura, Tomoya Takagi
  • Patent number: 8781700
    Abstract: A coasting control device for reducing uneasiness experienced by a driver when pressing a clutch pedal during coasting control. The device includes a clutch control unit that, when the clutch pedal is pressed during coasting control, controls an actuator to cause an amount of hydraulic oil that depends on the amount of depression of the clutch pedal to be ejected from a clutch-free operating cylinder.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 15, 2014
    Assignees: Isuzu Motors Limited, Transtron Inc.
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Patent number: 8781699
    Abstract: A coasting control device that prevents failures due to deterioration of a release bearing. The device includes an cumulative disengagement time measuring unit cumulatively measuring a duration of time that a clutch is being disengaged during coasting control, and an overtime restricting unit prohibiting coasting control when the measured cumulative clutch disengagement time has exceeded a predetermined time giving an indication of fatigue of a member of the clutch, and/or an overtime alarm unit providing an alarm when the measured cumulative clutch disengagement time has exceeded a predetermined time giving an indication of fatigue of the member of the clutch.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 15, 2014
    Assignees: Isuzu Motors Limited, Transtron Inc.
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20140157609
    Abstract: A displacement detection device is for detecting a change amount of relative positions of two parts as an angle displacement amount. The displacement detection device includes a link mechanism configured to connect the two parts, the link mechanism including at least one joint part; and a rotation angle detector connected to one end of the link mechanism. A spring is used as the at least one joint part of the link mechanism.
    Type: Application
    Filed: September 11, 2013
    Publication date: June 12, 2014
    Applicant: TRANSTRON INC.
    Inventors: Nobuo SUGAMURA, Yasukazu KOMATSU
  • Patent number: 8615997
    Abstract: A dynamic feedforward amount to realize a predetermined transient response characteristic by compensating a transient response characteristic of an engine having a Variable Nozzle Turbo (VNT) and an Exhaust Gas Recirculator (EGR) is calculated for a nozzle opening degree of the VNT and a valve opening degree of the EGR. The transient response characteristic of the engine responds to a setting value of an injection quantity or the like. Then, command values of the nozzle opening degree of the VNT and the valve opening degree of the EGR are calculated by using the dynamic feedforward amount. In the transient state, the followingness to the target value is improved.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 31, 2013
    Assignees: Fujitsu Limited, Transtron Inc.
    Inventors: Arata Ejiri, Jun Sasaki
  • Publication number: 20130140881
    Abstract: A brake fluid pressure retainer device for use in a vehicle incorporating a fluid pressure braking device includes an electromagnetic open-close valve disposed in a middle of a brake fluid passage between a brake pedal and a braking device provided for wheels, and a movable shutoff valve disposed in parallel with the electro-magnetic open-close valve for the brake fluid passage. The movable shutoff valve includes a movable valve body movable in a flowing direction of a brake fluid, a valve seat to be pressed by a front end to shut off the brake fluid, and a spring to apply force to the movable valve body in a direction in which the movable valve body moves away from the valve seat. A direction in which the movable valve body moves toward the valve seat is the flowing direction of the brake fluid.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 6, 2013
    Applicant: TRANSTRON INC.
    Inventor: TRANSTRON INC.
  • Publication number: 20130138313
    Abstract: A coasting control device capable of avoiding coasting control during running on road having a small coefficient of friction between a tire and a road surface (“low ? roads”) includes a low ? road running recognition unit which recognizes that a vehicle is running on a low ? road and a unit for prohibiting coasting control during low ? road running when the low ? road running recognition unit recognizes that the vehicle is running on a low ? road.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 30, 2013
    Applicants: TRANSTRON INC., ISUZU MOTORS LIMITED
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20130131943
    Abstract: A coasting control device that prevents failures due to deterioration of a release bearing. The device includes an cumulative disengagement time measuring unit cumulatively measuring a duration of time that a clutch is being disengaged during coasting control, and an overtime restricting unit prohibiting coasting control when the measured cumulative clutch disengagement time has exceeded a predetermined time giving an indication of fatigue of a member of the clutch, and/or an overtime alarm unit providing an alarm when the measured cumulative clutch disengagement time has exceeded a predetermined time giving an indication of fatigue of the member of the clutch.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 23, 2013
    Applicants: Transtron Inc., Isuzu Motors Limited
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20130131948
    Abstract: A coasting control device capable of avoiding coasting control during turning is provided. A turning recognition unit that recognizes that a vehicle is turning and a unit for prohibiting coasting control during turning that prohibits coasting control when the turning recognition unit recognizes that the vehicle is turning are provided.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 23, 2013
    Applicants: Transtron Inc., Isuzu Motors Limited of
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20130116899
    Abstract: A coasting control device for avoiding dangerous modes such as tire lock up upon the end of coasting control. The device, which performs coasting control to disengage the clutch and to reduce the engine revolutions per minute (RPM), also prevents a gearshift operation during coasting control.
    Type: Application
    Filed: July 1, 2011
    Publication date: May 9, 2013
    Applicants: TRANSTRON INC., ISUZU MOTORS LIMITED
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Patent number: 8437946
    Abstract: an intake system control device includes: an acquisition section that acquires an operation condition of an engine; a steady-state value determination section that determines input and output steady-state values for an intake system of the engine based on the acquired operation condition; a gain determination section that determines a gain for a state space model; and a first input calculation section that calculates the intake system input from the acquired operation condition, the input steady-state value, the output steady-state value, and an intake system output by using the state space model having the determined gain.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: May 7, 2013
    Assignee: Transtron Inc.
    Inventors: Jun Sasaki, Keiji Shimotani
  • Publication number: 20130103275
    Abstract: A coasting control device for reducing uneasiness experienced by a driver when pressing a clutch pedal during coasting control. The device includes a clutch control unit that, when the clutch pedal is pressed during coasting control, controls an actuator to cause an amount of hydraulic oil that depends on the amount of depression of the clutch pedal to be ejected from a clutch-free operating cylinder.
    Type: Application
    Filed: July 1, 2011
    Publication date: April 25, 2013
    Applicants: TRANSTRON INC., ISUZU MOTORS LIMITED
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
  • Publication number: 20110077837
    Abstract: A dynamic feedforward amount to realize a predetermined transient response characteristic by compensating a transient response characteristic of an engine having a Variable Nozzle Turbo (VNT) and an Exhaust Gas Recirculator (EGR) is calculated for a nozzle opening degree of the VNT and a valve opening degree of the EGR. The transient response characteristic of the engine responds to a setting value of an injection quantity or the like. Then, command values of the nozzle opening degree of the VNT and the valve opening degree of the EGR are calculated by using the dynamic feedforward amount. In the transient state, the followingness to the target value is improved.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 31, 2011
    Applicants: FUJITSU LIMITED, TRANSTRON Inc.
    Inventors: Arata Ejiri, Jun Sasaki
  • Publication number: 20110029220
    Abstract: an intake system control device includes: an acquisition section that acquires an operation condition of an engine; a steady-state value determination section that determines input and output steady-state values for an intake system of the engine based on the acquired operation condition; a gain determination section that determines a gain for a state space model; and a first input calculation section that calculates the intake system input from the acquired operation condition, the input steady-state value, the output steady-state value, and an intake system output by using the state space model having the determined gain.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 3, 2011
    Applicant: TRANSTRON INC.
    Inventors: Jun Sasaki, Keiji Shimotani
  • Patent number: 7299904
    Abstract: A brake fluid pressure maintaining apparatus for a vehicle, having: a master cylinder; a check valve; and, a normally-open-type electromagnetic valve including an electromagnetic coil, a fixed core, and a movable core, and in the brake fluid pressure maintaining state, it is closed and, in the brake fluid pressure no-maintaining state, it is always opened, and by changing the value of the current, an attracting force is changed; by setting the attracting force at a given value, the brake fluid pressure to be maintained on the wheel brake side is set; and, when it is closed, in case where the brake fluid pressure of the wheel brake is higher than the attracting force of the given value, it is opened against the attracting force to thereby reduce the brake fluid pressure of the wheel brake down to the given value.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: November 27, 2007
    Assignees: Nissin Kogyo Co., Ltd., Transtron, Inc.
    Inventors: Takayuki Wagu, Kazuhiko Kobayashi
  • Patent number: 7125087
    Abstract: A brake fluid pressure retaining unit is provided which allows a relief pressure to be variable only by use of a low-cost electromagnetic valve without using an expensive relief valve and orifice. The brake fluid pressure retaining unit includes an electromagnetic valve which is provided midway in a brake fluid channel connecting a master cylinder and a wheel cylinder and is capable of freely opening/closing the brake fluid channel by passing current though a solenoid coil; and an electromagnetic valve control section which detects a release signal indicative of releasing brake operation detected by a brake operation detecting section and passes current through the solenoid coil while referring to current values corresponding to a target maintaining fluid pressure to maintain a predetermined braking force.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: October 24, 2006
    Assignee: Transtron Inc.
    Inventor: Kazuhiko Kobayashi