Patents by Inventor Masanori Ichinose
Masanori Ichinose 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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Patent number: 9052716Abstract: A dump truck parking position/direction indication system and a hauling system are provided that allow the operator of a loading machine to determine a parking position and a parking direction of a dump truck. The dump truck parking position/direction indication system includes: a bucket position detection device which detects the position of a bucket of the loading machine; a locus calculation device which calculates a movement locus of the bucket based on the positions of the bucket detected by the bucket position detection device; a parking position/direction determination device which determines the parking position and the parking direction of the dump truck based on the movement locus calculated by the locus calculation device; and an output device which outputs the parking position and the parking direction of the dump truck determined by the parking position/direction determination device.Type: GrantFiled: October 16, 2012Date of Patent: June 9, 2015Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Wataru Tanaka, Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 9002588Abstract: A dump vehicle overturn preventing device includes: a loaded weight estimation unit which estimates loaded weight on the body; a vehicle rotation moment calculation unit which calculates a vehicle rotation moment Mb caused by movement of the dump vehicle's load upon discharging of the load; a reference moment calculation unit which determines a reference moment Ms not greater than an overturn threshold moment MI which is the minimum value of a rotation moment required to lift the front wheels off the ground; a judgment unit which judges whether or not the vehicle rotation moment Mb has exceeded the reference moment Ms; and a display device which notifies the driver that there is a probability of an overturn of the vehicle when the vehicle rotation moment Mb is judged to have exceeded the reference moment Ms.Type: GrantFiled: January 10, 2014Date of Patent: April 7, 2015Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Publication number: 20150032324Abstract: A mining vehicle is provided, which is capable of appropriately recognizing a condition of a traveling road in front of the vehicle, preventing an obstacle on a roadside from being erroneously detected by a distance detector, and controlling the speed of the vehicle in a stable manner even when the vehicle is approaching a curved portion of the road from a linear portion of the road.Type: ApplicationFiled: February 19, 2013Publication date: January 29, 2015Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato, Wataru Tanaka
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Patent number: 8862300Abstract: To suppress a change in a vehicle's attitude due to a pitch motion during vehicle braking, a pitch control device for an electric vehicle can prevent discontinuous negative acceleration from occurring at a moment of the vehicle stopping by appropriately controlling a braking force of the vehicle, thereby effectively controlling the pitch motion of the vehicle, and can enhance steering stability while ensuring riding comfort for passengers, even when traveling resistance significantly changes according to road surface gradient and when the vehicle weight significantly changes with increases/decreases in the number of drivers and in the quantity of goods loaded.Type: GrantFiled: June 10, 2011Date of Patent: October 14, 2014Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Satou
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Publication number: 20140261152Abstract: The present invention provides a dump truck parking position/direction indication system and a hauling system that allow the operator of a loading machine to determine a parking position and a parking direction of a dump truck that let the operator easily perform the loading operation and to make the dump truck stop and park at the parking position and in the parking direction.Type: ApplicationFiled: October 16, 2012Publication date: September 18, 2014Inventors: Wataru Tanaka, Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Publication number: 20140129097Abstract: Provided is an overturn preventing device for a dump vehicle equipped with a body and hoist cylinders. The dump vehicle overturn preventing device comprises: a loaded weight estimation unit which estimates loaded weight on the body; a vehicle rotation moment calculation unit which calculates a vehicle rotation moment Mb caused by movement of the dump vehicle's load upon discharging of the load; a reference moment calculation unit which determines a reference moment Ms not greater than an overturn threshold moment MI which is the minimum value of a rotation moment required to lift the front wheels off the ground; a judgment unit which judges whether or not the vehicle rotation moment Mb has exceeded the reference moment Ms; and a display device which notifies the driver that there is a probability of an overturn of the vehicle when the vehicle rotation moment Mb is judged to have exceeded the reference moment Ms.Type: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Masanori ICHINOSE, Tomohiko YASUDA, Takayuki SATO
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Patent number: 8706338Abstract: An electric vehicle includes a pitching state quantity detector for detecting quantity of a pitching-motion of the vehicle, a vehicle weight determiner, a pitching target quantity calculator for calculating a target quantity of a pitching motion at least from the determined vehicle weight, and a torque correction calculator for increasing/reducing a driving torque output, according to a particular differential between the detected pitching-motion state quantity and the calculated target quantity.Type: GrantFiled: January 25, 2013Date of Patent: April 22, 2014Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 8670906Abstract: Provided is an overturn preventing device for a dump vehicle equipped with a body (3) and hoist cylinders (5). The dump vehicle overturn preventing device comprises: a loaded weight estimation unit (32) which estimates loaded weight on the body; a vehicle rotation moment calculation unit (33) which calculates a vehicle rotation moment Mb caused by movement of the dump vehicle's load upon discharging of the load; a reference moment calculation unit (34) which determines a reference moment Ms not greater than an overturn threshold moment MI which is the minimum value of a rotation moment required to lift the front wheels (1) off the ground; a judgment unit (35) which judges whether or not the vehicle rotation moment Mb has exceeded the reference moment Ms; and a display device (37) which notifies the driver that there is a probability of an overturn of the vehicle when the vehicle rotation moment Mb is judged to have exceeded the reference moment Ms.Type: GrantFiled: December 9, 2010Date of Patent: March 11, 2014Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Publication number: 20130166128Abstract: An electric vehicle includes a pitching state quantity detector for detecting quantity of a pitching-motion of the vehicle, a vehicle weight determiner, a pitching target quantity calculator for calculating a target quantity of a pitching motion at least from the determined vehicle weight, and a torque correction calculator for increasing/reducing a driving torque output, according to a particular differential between the detected pitching-motion state quantity and the calculated target quantity.Type: ApplicationFiled: January 25, 2013Publication date: June 27, 2013Applicant: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori ICHINOSE, Tomohiko YASUDA, Takayuki SATO
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Publication number: 20130116874Abstract: To suppress a change in a vehicle's attitude due to a pitch motion during vehicle braking, a pitch control device for an electric vehicle can prevent discontinuous negative acceleration from occurring at a moment of the vehicle stopping by appropriately controlling a braking force of the vehicle, thereby effectively controlling the pitch motion of the vehicle, and can enhance steering stability while ensuring riding comfort for passengers, even when traveling resistance significantly changes according to road surface gradient and when the vehicle weight significantly changes with increases/decreases in the number of drivers and in the quantity of goods loaded.Type: ApplicationFiled: June 10, 2011Publication date: May 9, 2013Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Satou
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Publication number: 20130103244Abstract: Disclosed is a driving force control device that includes a determination section (12), a driving force command value calculation section (13), and a command value output section (14). The determination section (12) determines whether each of a plurality of motors (106), which independently drive a plurality of wheels (107), can be operated within a desired operating range when driven by a target driving force calculated for each of the motors (106). The driving force command value calculation section (13) adjusts the distribution of driving force for each of the motors in accordance with the target driving force for each of the motors and with the operating status of each of the motors and calculates an actual driving force command value for each of the motors for the purpose of operating each of the motors within the desired operating range if the determination means determines that each of the motors cannot be operated within the desired operating range.Type: ApplicationFiled: June 22, 2011Publication date: April 25, 2013Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Satou
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Patent number: 8406965Abstract: Disclosed herein is a shoulder collapse risk monitoring system capable of alerting a driver to a risk of a road shoulder collapse during approach operations to the shoulder.Type: GrantFiled: June 21, 2010Date of Patent: March 26, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 8380381Abstract: An electric vehicle includes a pitching state quantity detector for detecting quantity of a pitching-motion of the vehicle, a vehicle weight determiner, a pitching target quantity calculator for calculating a target quantity of a pitching motion at least from the determined vehicle weight, and a torque correction calculator for increasing/reducing a driving torque output, according to a particular differential between the detected pitching-motion state quantity and the calculated target quantity.Type: GrantFiled: May 31, 2012Date of Patent: February 19, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 8285452Abstract: To reduce tire wear, a turning motion assistance device for an electric vehicle is provided which includes a target wheel slip angle calculating unit for calculating a target wheel slip angle from the steering angle, a vehicle state quantity detector for detecting vehicle state quantities, an actual vehicle-body slip angle calculating unit for calculating an actual vehicle-body slip angle from the vehicle state quantities, an actual wheel slip angle calculating unit for calculating an actual wheel slip angle from the actual vehicle-body slip angle and the steering angle, a yawing moment requirement calculating unit for calculating a yawing moment requirement from a difference between the target wheel slip angle and the actual wheel slip angle, and a torque correction data calculating unit for calculating an amount of torque correction for generating the yawing moment required.Type: GrantFiled: February 9, 2010Date of Patent: October 9, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Publication number: 20120239234Abstract: An electric vehicle includes a pitching state quantity detector for detecting quantity of a pitching-motion of the vehicle, a vehicle weight determiner, a pitching target quantity calculator for calculating a target quantity of a pitching motion at least from the determined vehicle weight, and a torque correction calculator for increasing/reducing a driving torque output, according to a particular differential between the detected pitching-motion state quantity and the calculated target quantity.Type: ApplicationFiled: May 31, 2012Publication date: September 20, 2012Inventors: Masanori ICHINOSE, Tomohiko YASUDA, Takayuki SATO
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Publication number: 20120239257Abstract: Provided is an overturn preventing device for a dump vehicle equipped with a body (3) and hoist cylinders (5). The dump vehicle overturn preventing device comprises: a loaded weight estimation unit (32) which estimates loaded weight on the body; a vehicle rotation moment calculation unit (33) which calculates a vehicle rotation moment Mb caused by movement of the dump vehicle's load upon discharging of the load; a reference moment calculation unit (34) which determines a reference moment Ms not greater than an overturn threshold moment MI which is the minimum value of a rotation moment required to lift the front wheels (1) off the ground; a judgment unit (35) which judges whether or not the vehicle rotation moment Mb has exceeded the reference moment Ms; and a display device (37) which notifies the driver that there is a probability of an overturn of the vehicle when the vehicle rotation moment Mb is judged to have exceeded the reference moment Ms.Type: ApplicationFiled: December 9, 2010Publication date: September 20, 2012Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 8195351Abstract: Changes in the number of passengers or in load cause significant changes in vehicle weight, thus making it impossible to appropriately suppress a pitching motion of a vehicle chassis, hence rendering a necessary driving torque difficult to ensure, resulting in a decrease in drivability being insuppressible. An electric vehicle with a drive including a motor and a controller comprises a pitching quantity detector that detects a magnitude of a pitching motion of the vehicle, a vehicle weight determination unit that determines weight of the vehicle, a torque correction calculator that uses a traveling state of the vehicle and the determined vehicle weight to change a driving torque output from the drive, and a control gain varying element that adjusts a control gain of the torque correction calculator according to a magnitude of the vehicle weight value output from the vehicle weight determination unit.Type: GrantFiled: December 15, 2009Date of Patent: June 5, 2012Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Patent number: 7937219Abstract: An object of the present invention is to provide a steering assist system capable of showing a driver an appropriate direction of steering operation in advance and correctly, and without impairing safety, and shortening an operation time during collision avoidance, in particular, reducing an idle running time. It is another object of the present invention to provide a vehicle mounted with such a steering assist system. A recommended steering direction determination unit 102 determines a recommended steering direction using measurements of a lateral position taken by an obstacle position measurement unit 101. After a collision determination unit 103 determines that risk of collision is high, a steering assist torque is generated using a first assist torque command value set by a first torque calculation unit 105.Type: GrantFiled: April 15, 2008Date of Patent: May 3, 2011Assignee: Hitachi, Ltd.Inventors: Masanori Ichinose, Shingo Nasu, Tatsuya Yoshida
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Publication number: 20110010040Abstract: Disclosed herein is a shoulder collapse risk monitoring system capable of alerting a driver to a risk of a road shoulder collapse during approach operations to the shoulder.Type: ApplicationFiled: June 21, 2010Publication date: January 13, 2011Inventors: Masanori Ichinose, Tomohiko Yasuda, Takayuki Sato
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Publication number: 20100204887Abstract: Disclosed herein is a turning motion assistance device for an electric vehicle, adapted to effectively reduce tire wear of the vehicle while at the same time ensuring appropriate turning response.Type: ApplicationFiled: February 9, 2010Publication date: August 12, 2010Inventors: Masanori ICHINOSE, Tomohiko Yasuda, Takayuki Sato