Patents by Inventor Takumi UEMATSU
Takumi UEMATSU 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: 11932248Abstract: A vehicle control apparatus performs a following travel mode in which an own vehicle travels while following a followed vehicle ahead of the own vehicle. The apparatus includes a surrounding object detection section that acquires detection information regarding a surrounding object, a space determination section that uses the detection information to determine presence/absence of a free space located laterally to an own lane, a setting condition determination section that determines whether a first other vehicle having entered the own lane from the free space or a second other vehicle traveling ahead of a preceding vehicle having entered the free space from the own lane meets a setting condition for setting the first or second other vehicle as the followed vehicle, and an automated driving control section that sets the first or second other vehicle as the followed vehicle to perform the following travel mode if the setting condition is met.Type: GrantFiled: December 21, 2020Date of Patent: March 19, 2024Assignee: DENSO CORPORATIONInventors: Takumi Uematsu, Mitsuhiro Tokimasa, Michihiro Kuroki
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Patent number: 11915851Abstract: An inductor includes an external terminal and an element body that includes a magnetic portion containing a magnetic powder and a coil embedded in the magnetic portion. The magnetic powder has a particle size D50 at 50% of the cumulative volume of 5 ?m or less, a D90/D10 of 19 or lower, and a Vickers hardness of 1000 (kgf/mm2) or lower, the D90/D10 being the ratio of particle size D90 at 90% of the cumulative volume to particle size D10 at 10% of the cumulative volume in the cumulative particle size distribution by volume. In the magnetic portion, the packing density of the magnetic powder by volume is 60% or higher.Type: GrantFiled: October 16, 2020Date of Patent: February 27, 2024Assignee: Murata Manufacturing Co., Ltd.Inventors: Yuichi Tsuchiya, Takumi Arai, Motoki Toyama, Ryuta Uematsu
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Patent number: 11878688Abstract: In a vehicle control apparatus, an entry determiner determines, while one of the following traveling mode and the constant-speed traveling mode is performed by the vehicle control apparatus, whether an entry condition is satisfied in response to determination that there is at least one other crossing vehicle. The entry condition enables the at least one other crossing vehicle to cross in front of the own vehicle to thereafter enter the enterable space without colliding with the own vehicle. An autonomous driving controller switches, upon the entry condition being determined to be satisfied, the performed one of the following traveling mode and the constant-speed traveling mode to a crossing mode that controls traveling of the own vehicle to ensure a predetermined space in front of the own vehicle. The predetermined space enables the at least one other crossing vehicle to cross in front of the own vehicle.Type: GrantFiled: December 3, 2020Date of Patent: January 23, 2024Assignee: DENSO CORPORATIONInventors: Takumi Uematsu, Mitsuhiro Tokimasa, Michihiro Kuroki
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Patent number: 11834046Abstract: A vehicle control apparatus includes an intersection information detection section that detects information on an intersection, and includes a traveling route detection section that detects a traveling route of the vehicle and a cross road detection section that detects a cross road intersecting the traveling route, an operation detection section that detects a plan of operation of the vehicle at the intersection, a waiting position setting section that sets a waiting position where the vehicle is caused to wait at the intersection until the vehicle becomes possible to perform the operation, and a determination section that determines whether the vehicle can perform the operation by the time a traffic light on the traveling route at the intersection turns red. The waiting position setting section sets a position, where another vehicle is not hindered from traveling on the crossing road by the vehicle stopped at the waiting position, as the waiting position.Type: GrantFiled: November 24, 2020Date of Patent: December 5, 2023Assignee: DENSO CORPORATIONInventors: Yuta Komoguchi, Yohei Masui, Mitsuhiro Tokimasa, Takumi Uematsu
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Patent number: 11731647Abstract: A road shape recognizer includes a peripheral information recognizer that recognizes at least two items of peripheral information based on an output of a periphery detector. A reliability assigner assigns a reliability level to each of the peripheral information. A point sequence generator generates and places a point sequence representing a shape of a road on which the own vehicle travels, based on at least two items of peripheral information and the reliability level. The point sequence generator generates and places a point sequence by generating and placing points one by one toward a distant place from a point located at a prescribed relative position to the own vehicle. The point sequence generator generates and places the next point corresponding to an amount of change in shape and a position of a point generated and placed at the end of the point sequence. The amount of change in shape is represented by the peripheral information and determined per section having a prescribed distance.Type: GrantFiled: June 21, 2021Date of Patent: August 22, 2023Assignee: DENSO CORPORATIONInventors: Masaya Okada, Takumi Uematsu, Tatsuya Namikiri, Naru Sugimoto
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Publication number: 20210394779Abstract: A road shape recognizer includes a peripheral information recognizer that recognizes at least two items of peripheral information based on an output of a periphery detector. A reliability assigner assigns a reliability level to each of the peripheral information. A point sequence generator generates and places a point sequence representing a shape of a road on which the own vehicle travels, based on at least two items of peripheral information and the reliability level. The point sequence generator generates and places a point sequence by generating and placing points one by one toward a distant place from a point located at a prescribed relative position to the own vehicle. The point sequence generator generates and places the next point corresponding to an amount of change in shape and a position of a point generated and placed at the end of the point sequence. The amount of change in shape is represented by the peripheral information and determined per section having a prescribed distance.Type: ApplicationFiled: June 21, 2021Publication date: December 23, 2021Inventors: Masaya OKADA, Takumi UEMATSU, Tatsuya NAMIKIRI, Naru SUGIMOTO
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Publication number: 20210357663Abstract: A road recognition device includes a surroundings recognition section recognizing, as surroundings information, at least one of a shape of a roadside object and a travel history of another vehicle, a reliability setting section setting reliability of the surroundings information, a reference line setting section preferentially using surroundings information having higher reliability to determine a reference line of an own lane, and an output section outputting the reference line. When a direction indicator is in operation, the reliability setting section sets reliability of the surroundings information for a direction opposite to a direction indicated by the direction indicator so as to be lower. When the direction indicator is in operation, and the vehicle is traveling in a lane-change prohibition section, the reliability setting section sets reliability of the surroundings information including at least one of the shape of the roadside object and the travel history so as to be lower.Type: ApplicationFiled: July 28, 2021Publication date: November 18, 2021Inventors: Masaya OKADA, Takumi UEMATSU
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Patent number: 11120277Abstract: In an apparatus for recognizing a road shape of a travel route of a first vehicle, a surrounding environment recognizer repeatedly recognizes, as surroundings information, at least shapes of roadside objects or travel histories of second vehicles that are vehicles other than the first vehicle, located around the first vehicle in a travel direction of the first vehicle. A sequence-of-point estimator repeatedly estimates, using the surroundings information, a reference line connecting a sequence of points that represent the road shape of the travel route in the travel direction of the first vehicle. A first lane boundary setter repeatedly sets a first lane boundary that is a boundary of a lane of the first vehicle, located at a first distance from the reference line to a respective one of the left and the right of the first vehicle in a vehicle-widthwise direction of the first vehicle.Type: GrantFiled: October 8, 2019Date of Patent: September 14, 2021Assignee: DENSO CORPORATIONInventors: Masaya Okada, Takumi Uematsu
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Patent number: 11068735Abstract: A reliability calculation apparatus calculates a reliability of a recognized object that is recognized as being present on a route on which a vehicle travels. The reliability of the recognized object is used for driving control of the vehicle. In the reliability calculation apparatus, a provisional reliability calculating unit determines a feature quantity of each of a plurality of recognized objects, selects a plurality of pairs of recognized objects from the plurality of recognized objects, determines a difference in feature quantity of each pair of recognized objects, and calculates a reliability that decreases as the difference in feature quantity increases as a provisional reliability of each pair of recognized objects. An integrated reliability calculating unit calculates an integrated reliability of each recognized object from the provisional reliabilities of the plurality of pairs of recognized objects.Type: GrantFiled: November 30, 2018Date of Patent: July 20, 2021Assignee: DENSO CORPORATIONInventors: Masaya Okada, Shunya Kumano, Hiroaki Niino, Mitsuhiro Tokimasa, Takumi Uematsu
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Patent number: 11042759Abstract: A roadside object recognition apparatus recognizes a roadside object that is present on a travel route on which an own vehicle travels. The roadside object is used for driving control of the vehicle. In the roadside object recognition apparatus, a reflection point acquiring unit acquires, using a radar that emits electromagnetic waves, a reflection-point group of reflection points of the electromagnetic waves reflected by an object that is present on the travel route. An image acquiring unit acquires an image of the travel route using a camera. A reflection point correcting unit corrects the reflection-point group by removing an erroneous reflection point that is determined to be highly likely not to be a reflection point of a roadside object from the reflection-point group through image processing of the image. A shape recognizing unit recognizes a shape of the roadside object using the corrected reflection-point group.Type: GrantFiled: December 11, 2018Date of Patent: June 22, 2021Assignee: DENSO CORPORATIONInventors: Masaya Okada, Shunya Kumano, Takumi Uematsu, Mitsuhiro Tokimasa
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Publication number: 20210114595Abstract: In a vehicle control apparatus, an entry determiner determines, while one of the following traveling mode and the constant-speed traveling mode is performed by the vehicle control apparatus, whether an entry condition is satisfied in response to determination that there is at least one other crossing vehicle. The entry condition enables the at least one other crossing vehicle to cross in front of the own vehicle to thereafter enter the enterable space without colliding with the own vehicle. An autonomous driving controller switches, upon the entry condition being determined to be satisfied, the performed one of the following traveling mode and the constant-speed traveling mode to a crossing mode that controls traveling of the own vehicle to ensure a predetermined space in front of the own vehicle. The predetermined space enables the at least one other crossing vehicle to cross in front of the own vehicle.Type: ApplicationFiled: December 3, 2020Publication date: April 22, 2021Inventors: Takumi UEMATSU, Mitsuhiro TOKIMASA, Michihiro KUROKI
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Publication number: 20210107482Abstract: A vehicle control apparatus performs a following travel mode in which an own vehicle travels while following a followed vehicle ahead of the own vehicle. The apparatus includes a surrounding object detection section that acquires detection information regarding a surrounding object, a space determination section that uses the detection information to determine presence/absence of a free space located laterally to an own lane, a setting condition determination section that determines whether a first other vehicle having entered the own lane from the free space or a second other vehicle traveling ahead of a preceding vehicle having entered the free space from the own lane meets a setting condition for setting the first or second other vehicle as the followed vehicle, and an automated driving control section that sets the first or second other vehicle as the followed vehicle to perform the following travel mode if the setting condition is met.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Inventors: Takumi UEMATSU, Mitsuhiro TOKIMASA, Michihiro KUROKI
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Publication number: 20210094548Abstract: A vehicle control apparatus includes an intersection information detection section that detects information on an intersection, and includes a traveling route detection section that detects a traveling route of the vehicle and a cross road detection section that detects a cross road intersecting the traveling route, an operation detection section that detects a plan of operation of the vehicle at the intersection, a waiting position setting section that sets a waiting position where the vehicle is caused to wait at the intersection until the vehicle becomes possible to perform the operation, and a determination section that determines whether the vehicle can perform the operation by the time a traffic light on the traveling route at the intersection turns red. The waiting position setting section sets a position, where another vehicle is not hindered from traveling on the crossing road by the vehicle stopped at the waiting position, as the waiting position.Type: ApplicationFiled: November 24, 2020Publication date: April 1, 2021Inventors: Yuta KOMOGUCHI, Yohei MASUI, Mitsuhiro TOKIMASA, Takumi UEMATSU
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Patent number: 10759473Abstract: A neutral point detection device is applied to a steering control system that obtains a steering angle of a steering device of a vehicle as a detection value by a steering angle sensor, and controls the steering device by means of the detection value. The neutral point detection device includes a straight determination unit that determines whether a road on which the vehicle is traveling is straight, a straight traveling determination unit that determines whether the vehicle is travelling straight along the road, a steering angle acquisition unit that obtains the detection value of the steering angle sensor, and a detection unit that detects the neutral point of the steering angle sensor based on the detection value obtained by the steering angle acquisition unit, when the straight determination unit determines that the road is straight and the straight traveling determination unit determines that the vehicle is traveling straight along the road.Type: GrantFiled: October 12, 2017Date of Patent: September 1, 2020Assignee: DENSO CORPORATIONInventor: Takumi Uematsu
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Publication number: 20200117921Abstract: In an apparatus for recognizing a road shape of a travel route of a first vehicle, a surrounding environment recognizer repeatedly recognizes, as surroundings information, at least shapes of roadside objects or travel histories of second vehicles that are vehicles other than the first vehicle, located around the first vehicle in a travel direction of the first vehicle. A sequence-of-point estimator repeatedly estimates, using the surroundings information, a reference line connecting a sequence of points that represent the road shape of the travel route in the travel direction of the first vehicle. A first lane boundary setter repeatedly sets a first lane boundary that is a boundary of a lane of the first vehicle, located at a first distance from the reference line to a respective one of the left and the right of the first vehicle in a vehicle-widthwise direction of the first vehicle.Type: ApplicationFiled: October 8, 2019Publication date: April 16, 2020Inventors: Masaya OKADA, Takumi UEMATSU
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Publication number: 20190351941Abstract: A neutral point detection device is applied to a steering control system that obtains a steering angle of a steering device of a vehicle as a detection value by a steering angle sensor, and controls the steering device by means of the detection value. The neutral point detection device includes a straight determination unit that determines whether a road on which the vehicle is traveling is straight, a straight traveling determination unit that determines whether the vehicle is travelling straight along the road, a steering angle acquisition unit that obtains the detection value of the steering angle sensor, and a detection unit that detects the neutral point of the steering angle sensor based on the detection value obtained by the steering angle acquisition unit, when the straight determination unit determines that the road is straight and the straight traveling determination unit determines that the vehicle is traveling straight along the road.Type: ApplicationFiled: October 12, 2017Publication date: November 21, 2019Inventor: Takumi UEMATSU
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Publication number: 20190180117Abstract: A roadside object recognition apparatus recognizes a roadside object that is present on a travel route on which an own vehicle travels. The roadside object is used for driving control of the vehicle. In the roadside object recognition apparatus, a reflection point acquiring unit acquires, using a radar that emits electromagnetic waves, a reflection-point group of reflection points of the electromagnetic waves reflected by an object that is present on the travel route. An image acquiring unit acquires an image of the travel route using a camera. A reflection point correcting unit corrects the reflection-point group by removing an erroneous reflection point that is determined to be highly likely not to be a reflection point of a roadside object from the reflection-point group through image processing of the image. A shape recognizing unit recognizes a shape of the roadside object using the corrected reflection-point group.Type: ApplicationFiled: December 11, 2018Publication date: June 13, 2019Inventors: Masaya OKADA, Shunya KUMANO, Takumi UEMATSU, Mitsuhiro TOKIMASA
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Publication number: 20190171896Abstract: A reliability calculation apparatus calculates a reliability of a recognized object that is recognized as being present on a route on which a vehicle travels. The reliability of the recognized object is used for driving control of the vehicle. In the reliability calculation apparatus, a provisional reliability calculating unit determines a feature quantity of each of a plurality of recognized objects, selects a plurality of pairs of recognized objects from the plurality of recognized objects, determines a difference in feature quantity of each pair of recognized objects, and calculates a reliability that decreases as the difference in feature quantity increases as a provisional reliability of each pair of recognized objects. An integrated reliability calculating unit calculates an integrated reliability of each recognized object from the provisional reliabilities of the plurality of pairs of recognized objects.Type: ApplicationFiled: November 30, 2018Publication date: June 6, 2019Inventors: Masaya OKADA, Shunya KUMANO, Hiroaki NIINO, Mitsuhiro TOKIMASA, Takumi UEMATSU