Patents by Inventor Masatoshi Hoshino
Masatoshi Hoshino 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).
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Publication number: 20130193892Abstract: In a hybrid construction machine, there is provided a drive control device which realizes in, as a simple a structure as possible, control means of a motor generator, which is capable of preventing rapid decreases in the state of charge. The control means, which calculates a motor torque command value to be output to the motor generator, is characterized by calculating the motor torque command value, based on a difference between an actual state-of-charge and a prescribed target state-of-charge and a torque margin obtained by a difference between a maximum torque of an engine determined based on an actual rotational speed of the engine and an actual torque of the engine.Type: ApplicationFiled: October 12, 2011Publication date: August 1, 2013Inventors: Shinji Ishihara, Shinya Imura, Seiji Ishida, Masatoshi Hoshino, Manabu Edamura, Mitsuo Sonoda, Takatoshi Ooki, Takako Satake
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Patent number: 8363104Abstract: Provided is a lane determining device that is capable of quickly and accurately determining the lane traveled by a host vehicle traveling on a road with a plurality of lanes in each direction.Type: GrantFiled: September 25, 2009Date of Patent: January 29, 2013Assignee: Clarion Co., Ltd.Inventors: Masato Imai, Masatoshi Hoshino, Masao Sakata
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Patent number: 8165776Abstract: A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.Type: GrantFiled: August 20, 2008Date of Patent: April 24, 2012Assignee: Hitachi, Ltd.Inventors: Toshiharu Sugawara, Atsushi Yokoyama, Takaomi Nishigaito, Masatoshi Hoshino, Tatsuya Yoshida, Jun Kubo, Shinjiro Saito
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Patent number: 8165745Abstract: In a vehicle control system in which a large number of ECUs operate in coordination via a network, each node has an intra-network node status determination section, other node's status decision transmitting/other nodes' status decision receiving section, and failed-node identification section. The nodes exchange decisions made by the intra-network node status evaluation section with other nodes and thereby identify failed node.Type: GrantFiled: May 3, 2010Date of Patent: April 24, 2012Assignee: Hitachi, Ltd.Inventors: Kohei Sakurai, Yuichiro Morita, Masatoshi Hoshino, Yoshiaki Takahashi, Kenichi Kurosawa, Masahiro Matsubara
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Patent number: 8160781Abstract: A vehicular control system which includes a user parameter input module, an external parameter input module, a plurality of objective functions, a policy setting module, and a policy node. The user parameter input module Inputs a user parameter. The external parameter input module inputs an external parameter resulting from an outside environment. The objective functions are set for each control characteristic, respectively, so as to calculate an internal parameter of each control target from the user parameter and the external parameter. The policy setting module sets policies indicating a control index of the user for the objective functions respectively. The policy node weights the objective functions on the basis of the policies, adjusts the internal parameter in accordance with the policy so that the internal parameter is optimized among the objective functions, and issues a command to a control node corresponding to the internal parameter.Type: GrantFiled: March 7, 2005Date of Patent: April 17, 2012Assignee: Hitachi, Ltd.Inventors: Ken Naono, Masaaki Shimizu, Fumio Arakawa, Nobuyasu Kanekawa, Kohei Sakurai, Masatoshi Hoshino, Kentaro Yoshimura
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Publication number: 20110169958Abstract: Provided is a lane determining device that is capable of quickly and accurately determining the lane traveled by a host vehicle traveling on a road with a plurality of lanes in each direction.Type: ApplicationFiled: September 25, 2009Publication date: July 14, 2011Applicant: Clarion Co., Ltd.Inventors: Masato Imai, Masatoshi Hoshino, Masao Sakata
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Publication number: 20100332127Abstract: There is provided lane judgement equipment that is capable of quickly and accurately judging the lane that a vehicle is traveling in on a road with plural lanes in each direction. Lane judgement equipment 100 detects reference positions 402, 502 that are set in advance at an entrance to road B with plural lanes in each direction, and judges which of lanes B1-B3 of road B with plural lanes in each direction a vehicle 400 is traveling in based on entry distance L from those reference positions 402, 502 and on map information.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: Clarion Co., Ltd.Inventors: Masato Imai, Masatoshi Hoshino, Masao Sakata
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Publication number: 20100211258Abstract: In a vehicle control system in which a large number of ECUs operate in coordination via a network, each node has an intra-network node status determination section, other node's status decision transmitting/other nodes' status decision receiving section, and failed-node identification section. The nodes exchange decisions made by the intra-network node status evaluation section with other nodes and thereby identify failed node.Type: ApplicationFiled: May 3, 2010Publication date: August 19, 2010Applicant: Hitachi, Ltd.Inventors: Kohei SAKURAI, Yuichiro Morita, Masatoshi Hoshino, Yoshiaki Takahashi, Kenichi Kurosawa, Masahiro Matsubara
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Patent number: 7729827Abstract: In a vehicle control system in which a large number of ECUs operate in coordination via a network, each node has an intra-network node status determination section, other node's status decision transmitting/other nodes' status decision receiving section, and failed-node identification section. The nodes exchange decisions made by the intra-network node status evaluation section with other nodes and thereby identify failed node.Type: GrantFiled: September 28, 2006Date of Patent: June 1, 2010Assignee: Hitachi, Ltd.Inventors: Kohei Sakurai, Yuichiro Morita, Masatoshi Hoshino, Yoshiaki Takahashi, Kenichi Kurosawa, Masahiro Matsubara
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Publication number: 20100030421Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.Type: ApplicationFiled: October 7, 2009Publication date: February 4, 2010Applicant: HITACHI, LTD.Inventors: Kentaro YOSHIMURA, Kohei Sakurai, Nobuyasu Kanekawa, Yuichiro Morita, Yoshiaki Takahashi, Kenichi Kurosawa, Toshimichi Minowa, Masatoshi Hoshino, Yasuhiro Nakatsuka, Kotaro Shimamura, Kunihiko Tsunedomi, Shoji Sasaki
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Patent number: 7630807Abstract: A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network.Type: GrantFiled: March 31, 2005Date of Patent: December 8, 2009Assignee: Hitachi, Ltd.Inventors: Kentaro Yoshimura, Kohei Sakurai, Nobuyasu Kanekawa, Yuichiro Morita, Yoshiaki Takahashi, Kenichi Kurosawa, Toshimichi Minowa, Masatoshi Hoshino, Yasuhiro Nakatsuka, Kotaro Shimamura, Kunihiko Tsunedomi, Shoji Sasaki
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Publication number: 20090088925Abstract: A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.Type: ApplicationFiled: August 20, 2008Publication date: April 2, 2009Applicant: Hitachi, Ltd.Inventors: Toshiharu SUGAWARA, Atsushi Yokoyama, Takaomi Nishigaito, Masatoshi Hoshino, Tatsuya Yoshida, Jun Kubo, Shinjiro Saito
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Patent number: 7409275Abstract: The present invention provides a vehicle diagnostic system comprising an electronic control unit for controlling and monitoring vehicle equipment, a radio communication means for transmitting a vehicle diagnostic information to a telecommunication equipment located outside the vehicle or for communicating between the vehicle and the telecommunication equipment located outside the vehicle and for transmitting a communication diagnostic signal to the electronic control unit and receiving a response signal to the communication diagnostic signal, and a communication line for connecting the electronic control unit and the radio communication means wherein the response signal is utilized to determine if the communication line is properly functional.Type: GrantFiled: January 29, 2007Date of Patent: August 5, 2008Assignee: Hitachi, Ltd.Inventors: Kohei Sakurai, Nobuyasu Kanekawa, Minoru Ohsuga, Masatoshi Hoshino, Yoichi Iihoshi, Yutaka Takaku
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Patent number: 7277816Abstract: A system for directly measuring tire grip conditions is provided which can measure a skidding condition with no need of applying a vibration. A tire rotation speed sensor comprising a detection gear and a magnet sensor is mounted to a rotating shaft of a tire. An output of the tire rotation speed sensor is analyzed in time-frequency domain to detect vibrations caused by slips, thereby determining tire grip conditions, such as a slip ratio and a slip angle. By detecting fluctuations in rotation based on the cause-effect relation between the occurrence of tire slips and the occurrence of fluctuations in rotation, the tire slips can be directly detected. Therefore, the tire grip conditions can be confirmed with high accuracy.Type: GrantFiled: August 4, 2005Date of Patent: October 2, 2007Assignees: Hitachi, Ltd., Hitachi Cable, Ltd.Inventors: Nobuyasu Kanekawa, Masatoshi Hoshino, Kazuhiro Komatsuzaki, Masayoshi Kaneyasu
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Patent number: 7245248Abstract: In an A/D converter and a microcontroller including the same, the number of selection patterns of analog input channels is increased for each A/D conversion and the A/D conversion is conducted using an A/D converter having only fundamental functions without imposing load onto a CPU. The A/D converter or a DMA transfer device includes an A/D conversion table including one or more entries. Each entry includes enable bits for setting whether or not an A/D conversion is executed for the respective analog input channels and a plurality of count number bits for setting a number of executions of the A/D conversion.Type: GrantFiled: August 6, 2004Date of Patent: July 17, 2007Assignee: Renesas Technology Corp.Inventors: Yuichiro Morita, Kohei Sakurai, Nobuyasu Kanekawa, Masatoshi Hoshino, Hiromichi Yamada, Kotaro Shimamura, Satoshi Tanaka, Naoki Yada
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Patent number: 7240665Abstract: A method is provided for easily avoiding undesirable effects on various physical values due to the change in temperature of a motor for driving a throttle valve without causing secondary problems. A technique is also provided for measuring the temperature of the motor electrically. The method uses a compensation device for correcting the power supply to the motor by detecting the impedance of the motor windings and/or the change in the motor temperature. The temperature of the motor is estimated from the current and voltage to the motor.Type: GrantFiled: December 16, 2005Date of Patent: July 10, 2007Assignee: Hitachi, Ltd.Inventors: Masatoshi Hoshino, Katsuji Marumoto, Minoru Oosuga, Yasuhiro Kamimura, Yasushi Sasaki
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Publication number: 20070124039Abstract: The present invention provides a vehicle diagnostic system comprising an electronic control unit for controlling and monitoring vehicle equipment, a radio communication means for transmitting a vehicle diagnostic information to a telecommunication equipment located outside the vehicle or for communicating between the vehicle and the telecommunication equipment located outside the vehicle and for transmitting a communication diagnostic signal to the electronic control unit and receiving a response signal to the communication diagnostic signal, and a communication line for connecting the electronic control unit and the radio communication means wherein the response signal is utilized to determine if the communication line is properly functional.Type: ApplicationFiled: January 29, 2007Publication date: May 31, 2007Inventors: Kohei Sakurai, Nobuyasu Kanekawa, Minoru Ohsuga, Masatoshi Hoshino, Yoichi Iihoshi, Yutaka Takaku
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Patent number: 7207314Abstract: An engine electronic control unit is inserted through a through hole provided in an intake pipe and mounted in an intake air passage in a direction substantially perpendicularly with respect to a plane of the intake pipe forming the intake air passage. This unit is then secured to the intake pipe using a fixing flange provided at a connector portion. A fixing rail is protruded inside the intake pipe and leading edges of a metal base and a metal cover of the unit are inserted into this rail, thereby securing in position an end opposite to a side of the connector portion of the unit. This realizes an engine electronic control unit offering an outstanding heat radiation performance and vibration resistance, without having to provide special heat radiating parts or without involving an increase in an intake air resistance within the intake air passage. By using such an engine electronic control unit, it is possible to provide a low-cost, compact engine air intake system.Type: GrantFiled: July 1, 2005Date of Patent: April 24, 2007Assignee: Hitachi, Ltd.Inventors: Kohei Sakurai, Minoru Ohsuga, Nobuyasu Kanekawa, Masatoshi Hoshino, Atsushi Kanke, Yutaka Nishimura, Mitsuru Watabe, Noriyoshi Urushiwara
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Publication number: 20070076593Abstract: In a vehicle control system in which a large number of ECUs operate in coordination via a network, each node has an intra-network node status determination section, other node's status decision transmitting/other nodes status decision receiving section, and failed-node identification section. The nodes exchange decisions made by the intra-network node status evaluation section with other nodes and thereby identify failed node.Type: ApplicationFiled: September 28, 2006Publication date: April 5, 2007Applicant: Hitachi, Ltd.Inventors: Kohei Sakurai, Yuichiro Morita, Masatoshi Hoshino, Yoshiaki Takahashi, Kenichi Kurosawa, Masahiro Matsubara
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Patent number: 7063180Abstract: In a vehicle steering transmission device, a first gear is rotatable on a rotational axis to rotate in accordance with a vehicle steering operation, a second gear is rotatable on the rotational axis and connectable to a vehicle wheel so that an orientation of the vehicle wheel is changed, an intermediate gear engages with the first and second gears, a support member is rotatable on the rotational axis while supporting the intermediate gear in such a manner that the intermediate gear is rotatable on another rotational axis which another rotational axis intersects the rotational axis and extends perpendicularly to the rotational axis, and a driving device drives the support member to rotate on the rotational axis so that a differential rotational motion is generated between the first and second gears.Type: GrantFiled: August 31, 2004Date of Patent: June 20, 2006Assignee: Hitachi, Ltd.Inventors: Takao Kojima, Masahiko Amano, Masatoshi Hoshino