Patents Assigned to Transtron, Inc.
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Patent number: 8880307Abstract: 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: GrantFiled: July 1, 2011Date of Patent: November 4, 2014Assignees: Isuzu Motors Limited, Transtron Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Patent number: 8855887Abstract: 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: GrantFiled: July 7, 2011Date of Patent: October 7, 2014Assignees: Isuzu Motors Limited, Transtron Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20140292539Abstract: 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: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicants: TRANSTRON INC., FUJITSU LIMITEDInventors: Kiyohide Omiya, Takashi Shimada, Tsutomu Ohta, Hironobu Hase, Tomoyuki Tsuda, Masayoshi Hoshiya
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Publication number: 20140292072Abstract: 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: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicants: TRANSTRON INC, FUJITSU LIMITEDInventors: Masanori Nakanishi, Kazuyoshi Tsukada, Jun Sasaki
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Publication number: 20140297078Abstract: 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: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicants: FUJITSU LIMITED, TRANSTRON INC, FUJITSU TEN LIMITEDInventors: Keiichi Yonezaki, Shinji Nakamura, Tomoya Takagi
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Patent number: 8781700Abstract: 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: GrantFiled: July 1, 2011Date of Patent: July 15, 2014Assignees: Isuzu Motors Limited, Transtron Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Patent number: 8781699Abstract: 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: GrantFiled: July 7, 2011Date of Patent: July 15, 2014Assignees: Isuzu Motors Limited, Transtron Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20140157609Abstract: 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: ApplicationFiled: September 11, 2013Publication date: June 12, 2014Applicant: TRANSTRON INC.Inventors: Nobuo SUGAMURA, Yasukazu KOMATSU
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Patent number: 8615997Abstract: 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: GrantFiled: September 22, 2010Date of Patent: December 31, 2013Assignees: Fujitsu Limited, Transtron Inc.Inventors: Arata Ejiri, Jun Sasaki
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Publication number: 20130140881Abstract: 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: ApplicationFiled: January 29, 2013Publication date: June 6, 2013Applicant: TRANSTRON INC.Inventor: TRANSTRON INC.
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Publication number: 20130138313Abstract: 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: ApplicationFiled: July 7, 2011Publication date: May 30, 2013Applicants: TRANSTRON INC., ISUZU MOTORS LIMITEDInventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20130131943Abstract: 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: ApplicationFiled: July 7, 2011Publication date: May 23, 2013Applicants: Transtron Inc., Isuzu Motors LimitedInventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20130131948Abstract: 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: ApplicationFiled: July 7, 2011Publication date: May 23, 2013Applicants: Transtron Inc., Isuzu Motors Limited ofInventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20130116899Abstract: 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: ApplicationFiled: July 1, 2011Publication date: May 9, 2013Applicants: TRANSTRON INC., ISUZU MOTORS LIMITEDInventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Patent number: 8437946Abstract: 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: GrantFiled: July 27, 2010Date of Patent: May 7, 2013Assignee: Transtron Inc.Inventors: Jun Sasaki, Keiji Shimotani
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Publication number: 20130103275Abstract: 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: ApplicationFiled: July 1, 2011Publication date: April 25, 2013Applicants: TRANSTRON INC., ISUZU MOTORS LIMITEDInventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Publication number: 20110077837Abstract: 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: ApplicationFiled: September 22, 2010Publication date: March 31, 2011Applicants: FUJITSU LIMITED, TRANSTRON Inc.Inventors: Arata Ejiri, Jun Sasaki
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Publication number: 20110029220Abstract: 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: ApplicationFiled: July 27, 2010Publication date: February 3, 2011Applicant: TRANSTRON INC.Inventors: Jun Sasaki, Keiji Shimotani
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Patent number: 7299904Abstract: 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: GrantFiled: November 25, 2003Date of Patent: November 27, 2007Assignees: Nissin Kogyo Co., Ltd., Transtron, Inc.Inventors: Takayuki Wagu, Kazuhiko Kobayashi
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Patent number: 7125087Abstract: 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: GrantFiled: July 20, 2004Date of Patent: October 24, 2006Assignee: Transtron Inc.Inventor: Kazuhiko Kobayashi