Patents by Inventor Masashi Seimiya
Masashi Seimiya 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: 11975709Abstract: A vehicle parking control device has a processor and a memory to control the vehicle from a starting to a target parking position. The vehicle control device includes an obstacle detection unit detecting obstacles around the vehicle, a travelable area setting unit setting an area where the vehicle can travel based on a position of the obstacles, and sets the target parking position in the travelable area, a route generation unit calculating a travel route to the target parking position in the travelable area, and a parking execution unit that causes the vehicle to travel toward the target parking position on the basis of the travel route. The route generation unit generates a route from a parking start position to the target parking position, and corrects a distance of the section to a predetermined distance when the distance of the section is less than the predetermined distance.Type: GrantFiled: February 5, 2020Date of Patent: May 7, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Naoyuki Tashiro, Masashi Seimiya, Satoshi Matsuda, Masato Imai
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Publication number: 20240048388Abstract: The present disclosure provides an information management system capable of solving a problem related to handling of information regarding each driver when a plurality of drivers drives one vehicle. An information management system 1 according to an aspect of the present disclosure manages driver information DI regarding a driver of a vehicle V. The information management system 1 includes a driver identification unit 111 that acquires personal identification information PI of the driver, an information acquisition unit 12 that acquires driver information DI including travel information of the vehicle V, and individual information storage units 125 and 132 that store individual information PD in which the personal identification information PI and the driver information DI are associated with each other.Type: ApplicationFiled: September 8, 2021Publication date: February 8, 2024Applicant: HITACHI ASTEMO, LTD.Inventors: Tetsuya YAMADA, Masashi SEIMIYA, Yasuhiro FUJII
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Patent number: 11891051Abstract: A parking assist device capable of parking assistance that ensures high accuracy of a parking location is provided. A parking assist device that assists in performing an operation of parking a vehicle includes a parking-allowing location calculation unit that before the vehicle stops at a parking-allowing location, calculates and updates the parking-allowing location a plurality of times, and a parking route calculation unit that calculates a parking route. The parking route calculation unit sets a minimum turning radius for calculating the parking route, based on the amount of a shift between the parking-allowing location not updated and the parking-allowing location having been updated, and calculates the parking route, using the minimum turning radius. The minimum turning radius is set larger than the minimum value of a turning radius unique to the vehicle.Type: GrantFiled: June 5, 2020Date of Patent: February 6, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Satoshi Matsuda, Masashi Seimiya, Akitoshi Miyazaki
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Patent number: 11866059Abstract: A route information storage function having decreased data storage requirements is provided in a vehicle controller that includes a processor, a first storage unit, and a second storage unit and that stores route information indicating a route to a target point. The vehicle controller includes a traveling state acquiring unit that acquires route information on a vehicle, a short-term storage information processing unit that stores the route information in the first storage unit, as short-term storage information, the route information being acquired by the traveling state acquiring unit while the vehicle is traveling, and a long-term storage information processing unit that after the vehicle has reached the target point, determines long-term storage information from short-term storage information stored in the first storage unit, the long-term storage information processing unit storing the determined long-term storage information in the second storage unit.Type: GrantFiled: July 17, 2020Date of Patent: January 9, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Takaya Ishii, Masashi Seimiya
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Publication number: 20230242103Abstract: An object of the present invention is to improve convenience of parking assistance. A control device 111 of a driving assistance device 200 controls an emergency brake device that actuates an emergency brake based on a distance to an obstacle detected by a sonar 3 constituting the detection device mounted on a vehicle 1 and a parking assistance device that provides parking assistance for the vehicle 1. In the sonar 3 constituting the detection device, an upper limit value and a lower limit value that define a range of the distance in which an obstacle can be detected are determined in advance. The control device 111 invalidates the operation of the emergency brake device when the distance between the vehicle 1 and the obstacle at a target vehicle stop position which is a target position for stopping the vehicle 1 in the parking assistance is smaller than the lower limit value.Type: ApplicationFiled: March 18, 2021Publication date: August 3, 2023Applicant: Hitachi Astemo, Ltd.Inventors: Akitoshi MIYAZAKI, Masashi SEIMIYA
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Publication number: 20230211824Abstract: A driving assistance device that includes a processor and a memory and assists driving of a vehicle includes: an external environment information acquisition unit that acquires external environment information of the vehicle; an obstacle detection unit that detects an obstacle in front of the vehicle from the external environment information; a lane detection unit that detects a lane boundary line and a road edge from the external environment information; an alarm unit that issues an alarm or performs steering assist when deviation from the lane boundary line or the road edge is detected; and a state management unit that suppresses the alarm or the steering assist when the obstacle detection unit detects the obstacle.Type: ApplicationFiled: February 26, 2021Publication date: July 6, 2023Inventors: Tomoyasu SAKAGUCHI, Masashi SEIMIYA, Keisuke TAKEUCHI
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Publication number: 20220355800Abstract: At the time of travel following a travel route, even if an environment around the travel route changes, estimation of a host vehicle position from a stationary object is realized. A vehicle control device has a processor and a memory and controls traveling of a vehicle, and includes a sensor that acquires surrounding environment information of the vehicle, a surrounding environment storage unit that acquires a stationary object from surrounding environment information acquired by the sensor, calculates a position of the stationary object, and stores the position of the vehicle on a travel route and a position of the stationary object in association with each other. The surrounding environment storage unit stores three or more of the stationary objects at each position on a travel route as stationary objects for host vehicle position estimation in a case of receiving a command to start storing the surrounding environment information and the travel route.Type: ApplicationFiled: June 30, 2020Publication date: November 10, 2022Applicant: HITACHI ASTEMO, LTD.Inventors: Akitoshi MIYAZAKI, Keisuke TAKEUCHI, Masashi SEIMIYA, Satoshi MATSUDA
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Patent number: 11472383Abstract: The present invention prevents occurrence of abnormal noise and swing of a vehicle in mitigating braking force of a steered wheel while reducing a steering load at the time of stationary steering to reduce a burden of a steering device and reducing stress accumulation due to stationary steering to reduce burdens of a tire, a suspension device and the steering device. The present invention includes a stop braking force control unit 202 that individually controls braking forces of steered wheels 51 and 52 and non-steered wheels 53 and 54 at the time of deceleration of the vehicle, and a pre-detection unit 203 that detects steering in a stopped state of the vehicle in advance, in which the stop braking force control unit executes, when the steering in a stopped state of the vehicle is detected in advance by the pre-detection unit, braking force mitigation control to decrease the braking forces of the steered wheels to be lower than the braking forces at the time of normal braking.Type: GrantFiled: July 26, 2017Date of Patent: October 18, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Tomoyasu Sakaguchi, Yoshiyuki Yoshida, Masashi Seimiya, Takashi Matsuoka
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Publication number: 20220315023Abstract: A route information storage function having decreased data storage requirements is provided in a vehicle controller that includes a processor, a first storage unit, and a second storage unit and that stores route information indicating a route to a target point. The vehicle controller includes a traveling state acquiring unit that acquires route information on a vehicle, a short-term storage information processing unit that stores the route information in the first storage unit, as short-term storage information, the route information being acquired by the traveling state acquiring unit while the vehicle is traveling, and a long-term storage information processing unit that after the vehicle has reached the target point, determines long-term storage information from short-term storage information stored in the first storage unit, the long-term storage information processing unit storing the determined long-term storage information in the second storage unit.Type: ApplicationFiled: July 17, 2020Publication date: October 6, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Takaya ISHII, Masashi SEIMIYA
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Publication number: 20220260386Abstract: An object is to reduce the data size of surrounding environment information to be stored. A vehicle control device that includes a processor, a first storage unit, and a second storage unit, and stores route information to a target point, the vehicle control device including: an input device that acquires route information of a vehicle and surrounding environment information around the vehicle; and a short-term storage information processing unit that stores the route information and the surrounding environment information acquired while the vehicle is traveling into the first storage unit as short-term storage information, in which the short-term storage information processing unit calculates a feature degree of the surrounding environment information when storing the route information, and temporarily stores the surrounding environment information in which the feature degree is equal to or greater than a predetermined value into the first storage unit as the short-term storage information.Type: ApplicationFiled: July 17, 2020Publication date: August 18, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Motomune SUZUKI, Masashi SEIMIYA
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Publication number: 20220250611Abstract: A parking assist device capable of parking assistance that ensures high accuracy of a parking location is provided. A parking assist device that assists in performing an operation of parking a vehicle includes a parking-allowing location calculation unit that before the vehicle stops at a parking-allowing location, calculates and updates the parking-allowing location a plurality of times, and a parking route calculation unit that calculates a parking route. The parking route calculation unit sets a minimum turning radius for calculating the parking route, based on the amount of a shift between the parking-allowing location not updated and the parking-allowing location having been updated, and calculates the parking route, using the minimum turning radius. The minimum turning radius is set larger than the minimum value of a turning radius unique to the vehicle.Type: ApplicationFiled: June 5, 2020Publication date: August 11, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Satoshi MATSUDA, Masashi SEIMIYA, Akitoshi MIYAZAKI
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Patent number: 11396288Abstract: In the invention, in automatic parking, a route from a parking start position to a target parking position is calculated prior to the start of parking. However, there are cases where an external environment recognition device cannot detect an obstacle at a distant or blind spot. In such a case, smooth parking is hindered when the vehicle is actually automatically parked. In the invention, in Step S1101, the vehicle is virtually moved from a parking start position 1201 in the direction of a turning position, and a turning position 1206 is calculated on a parking route 1205. In Step S1103, a preliminary route to a target parking position 1207 when the vehicle is turned back at the turning position 1206 is calculated. In the next Step S1104, it is determined whether the preliminary route can be generated, and when the preliminary route satisfies a predetermined condition, the route calculated by a candidate route calculation unit 501 is adopted as an automatic parking route.Type: GrantFiled: March 20, 2019Date of Patent: July 26, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Naoyuki Tashiro, Masashi Seimiya, Masato Imai, Shinya Kasai
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Publication number: 20220227387Abstract: A vehicle control device includes a processor, a memory and a sensor that acquires surrounding environment information of the vehicle, a host vehicle position estimation unit that estimates the route of the vehicle, a surrounding environment storage unit that stores the surrounding environment information and the route estimated by the host vehicle position estimation unit in association with each other, a vehicle-speed threshold determination unit that sets a vehicle-speed threshold value when the surrounding environment storage unit stores the surrounding environment information and the route in association with each other, and determines whether or not a current vehicle speed exceeds the vehicle-speed threshold value when the surrounding environment storage unit stores the surrounding environment information and the route, and a warning unit that performs a notification of an excess of the vehicle speed when the vehicle-speed threshold determination unit determines that the vehicle speed exceeds the vehiclType: ApplicationFiled: June 19, 2020Publication date: July 21, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Koichiro OZAKI, Masashi SEIMIYA, Tomoyasu SAKAGUCHI, Yoshitaka FUKASAWA
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Patent number: 11390272Abstract: Unfortunately, even when a new area, which cannot be recognized from the parking start position, is detected in the surrounding area as the vehicle travels on the parking route, the new area cannot be used effectively as the parking route. In step S304, when there is an area for extending the parking route in the newly detected area, the route is determined to be extensible. In step S305, it is determined whether the vehicle can be parked with one turnabout without extending the route, and when it is determined that the vehicle cannot be parked with one turnabout, the process proceeds to step S307 to perform the route extension process. When the posture of the vehicle at the turning point does not exceed a predetermined value in step S306, the process also proceeds to step S307.Type: GrantFiled: February 13, 2019Date of Patent: July 19, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Shinya Kasai, Masashi Seimiya, Masato Imai, Naoyuki Tashiro
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Publication number: 20220196424Abstract: When a vehicle is caused to autonomously travel and is guided to a target point, if an error from a design value occurs in a position or dimensions of an external-environment sensor due to a secular change of the vehicle, a riding state, or a loading state, an error also occurs in a sensing result. Thus, positional accuracy at the target point is deteriorated. There is provided a vehicle control method of controlling a vehicle by a vehicle control device including a processor and a memory. The vehicle control method includes a step of storing route information up to a predetermined point by the vehicle control device, and a step of performing autonomous traveling based on the route information by the vehicle control device. In the step of storing, a section for collecting information for disturbance correction on an external-environment sensor is stored.Type: ApplicationFiled: August 14, 2020Publication date: June 23, 2022Applicant: HITACHI ASTEMO, LTD.Inventors: Keisuke TAKEUCHI, Tomoyasu SAKAGUCHI, Masashi SEIMIYA
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Publication number: 20220161785Abstract: A vehicle parking control device has a processor and a memory to control the vehicle from a starting to a target parking position. The vehicle control device includes an obstacle detection unit detecting obstacles around the vehicle, a travelable area setting unit setting an area where the vehicle can travel based on a position of the obstacles, and sets the target parking position in the travelable area, a route generation unit calculating a travel route to the target parking position in the travelable area, and a parking execution unit that causes the vehicle to travel toward the target parking position on the basis of the travel route. The route generation unit generates a route from a parking start position to the target parking position, and corrects a distance of the section to a predetermined distance when the distance of the section is less than the predetermined distance.Type: ApplicationFiled: February 5, 2020Publication date: May 26, 2022Applicant: HITACHI ASTEMO, LTD.Inventors: Naoyuki TASHIRO, Masashi SEIMIYA, Satoshi MATSUDA, Masato IMAI
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Patent number: 11332126Abstract: When one sensors fails and thus malfunctions during automatic parking of a vehicle, only the other sensor functions. Accordingly, depending on the behavior of the vehicle, the detection characteristics of the other sensor cause degradation in recognition of the vehicle, hindering the automatic parking from being continued. In processing S401, a determination is made whether or not an external recognition device, such as a camera or sonar, malfunctions. In processing S402, based on the determination on malfunction of the external recognition device, a determination is made whether or not to restrict vehicle speed or to restrict a path, with reference to restriction information for parking control. The restriction information for parking control provides information for restricting the vehicle speed in accordance with the malfunction of the camera, and for restricting the path in accordance with the malfunction of the sonar.Type: GrantFiled: February 8, 2019Date of Patent: May 17, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Masashi Seimiya, Satoshi Matsuda, Tomoyasu Sakaguchi, Yusuke Kogure, Yoshitaka Fukasawa
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Publication number: 20220084330Abstract: A vehicle control device includes a counting unit that counts rotation of wheels by a sensor; and a rotation determination unit that determines the rotation based on a count value of each of the wheels obtained by the counting unit. Based on a movement distance of a vehicle, the movement distance of each of the wheels from rotation detection to the next rotation detection is defined as a rotation detection travel distance of each of the wheels. The rotation determination unit determines a rotation direction of a wheel a second time is a direction opposite to that detected for a first time when rotation detection is not performed even once for a first reference wheel having a rotation detection travel distance equal to or less than a rotation detection travel distance of the first determination target wheel while the rotation of the selected first determination target wheel is detected twice.Type: ApplicationFiled: January 21, 2020Publication date: March 17, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Tomoyasu SAKAGUCHI, Masashi SEIMIYA, Yoshitaka FUKASAWA
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Publication number: 20210402985Abstract: Provided is a vehicle control device that can reduce discomfort of an occupant during parking control. The vehicle control device 10 includes a route calculator 11 that calculates a parking route of a vehicle, a travel controller 12 that makes the vehicle travel along the parking route, and a route selector 13 that selects either an original parking route or a new parking route when the vehicle traveling along the parking route stops at a stop position before a turn-back position, the new parking route being calculated at the stop position. The travel controller 12 makes the vehicle travel from the stop position along the parking route selected by the route selector 13.Type: ApplicationFiled: August 8, 2019Publication date: December 30, 2021Inventors: Satoshi MATSUDA, Masashi SEIMIYA, Akitoshi MIYAZAKI
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Publication number: 20210387614Abstract: A vehicle control device, which reduces intervention in automatic parking by a driver, includes a processor and a memory, that control the vehicle to a target parking position. The vehicle control device includes an obstacle detection unit detecting a position of an obstacle around the vehicle, a travelable region setting unit that determines a region where the vehicle may travel based on the position of the obstacle, and sets the target parking position within the travelable region, a route generation unit that calculates a travel route to the target parking position within the travelable region, and an automatic parking execution unit that causes the vehicle to automatically travel toward the target parking position. When a driver intervenes during the automatic traveling, the route generation unit stores vehicle state information at the time of the intervention, and resets the travelable region based on the driver operation intervention information.Type: ApplicationFiled: September 26, 2019Publication date: December 16, 2021Applicant: Hitachi Astemo, Ltd.Inventors: Naoyuki TASHIRO, Masashi SEIMIYA, Satoshi MATSUDA, Masato IMAI