Patents by Inventor Keisuke HARUTA
Keisuke HARUTA 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: 20240083419Abstract: A processing method implemented by a host mobile object includes steps of: monitoring a target mobile object traveling in an oncoming lane; and upon determining that the target mobile object traveling in the oncoming lane is detected, selecting, as driving control given to the host mobile object according to an overlapping travel situation where a future travel of the host mobile object and a future travel of the target mobile object would overlap with each other in the oncoming lane, either (i) deviation control for the host mobile object to deviate from the host lane to the oncoming lane or (ii) standby control for the host mobile object to stay in the host lane.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Inventors: KEISUKE HARUTA, SADAHIRO TERAZAWA
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Patent number: 11143249Abstract: A driving force distribution control device mounted on a four-wheel drive vehicle is provided. A coupling mechanism controller connects a drive shaft with an auxiliary driving wheel and sets a fastening force as a first fastening force, when an increase rate in an accelerator opening becomes more than a given value and a vehicle speed is below a given first speed, and changes the fastening force from the first fastening force to a second fastening force, when a slip of at least one of main driving wheels is detected after the fastening force is set to the first fastening force, and before a given time period has lapsed from the setting of the fastening force, or before the vehicle speed becomes faster than a given second speed. The second fastening force at least immediately after the change of the fastening force is a value larger than the first fastening force.Type: GrantFiled: May 15, 2020Date of Patent: October 12, 2021Assignee: Mazda Motor CorporationInventors: Yasumasa Imamura, Naoki Nobutani, Keisuke Haruta, Daisuke Umetsu, Yasushi Yagi
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Patent number: 10946863Abstract: A wheel load estimation method of a four-wheel drive vehicle driven by a rotational driving device comprises a correlation relationship setting step for previously setting a correlation relationship between a total weight and at least one of the front wheel load and the rear wheel load by variously changing a movable load of the vehicle, a total vehicle weight computation step for calculating a current total vehicle weight from an output torque of the rotational driving device and a longitudinal acceleration of the vehicle corresponding to the output torque, and a wheel load estimation step for estimating the wheel load of at least a driving wheel from the correlation relationship and the total vehicle weight.Type: GrantFiled: August 29, 2018Date of Patent: March 16, 2021Assignee: Mazda Motor CorporationInventors: Yasumasa Imamura, Yasushi Yagi, Akihiro Tatara, Keisuke Haruta
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Publication number: 20200370608Abstract: A driving force distribution control device mounted on a four-wheel drive vehicle is provided. A coupling mechanism controller connects a drive shaft with an auxiliary driving wheel and sets a fastening force as a first fastening force, when an increase rate in an accelerator opening becomes more than a given value and a vehicle speed is below a given first speed, and changes the fastening force from the first fastening force to a second fastening force, when a slip of at least one of main driving wheels is detected after the fastening force is set to the first fastening force, and before a given time period has lapsed from the setting of the fastening force, or before the vehicle speed becomes faster than a given second speed. The second fastening force at least immediately after the change of the fastening force is a value larger than the first fastening force.Type: ApplicationFiled: May 15, 2020Publication date: November 26, 2020Inventors: Yasumasa Imamura, Naoki Nobutani, Keisuke Haruta, Daisuke Umetsu, Yasushi Yagi
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Publication number: 20190061770Abstract: A wheel load estimation method of a four-wheel drive vehicle driven by a rotational driving device comprises a correlation relationship setting step for previously setting a correlation relationship between a total weight and at least one of the front wheel load and the rear wheel load by variously changing a movable load of the vehicle, a total vehicle weight computation step for calculating a current total vehicle weight from an output torque of the rotational driving device and a longitudinal acceleration of the vehicle corresponding to the output torque, and a wheel load estimation step for estimating the wheel load of at least a driving wheel from the correlation relationship and the total vehicle weight.Type: ApplicationFiled: August 29, 2018Publication date: February 28, 2019Inventors: Yasumasa Imamura, Yasushi Yagi, Akihiro Tatara, Keisuke Haruta
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Patent number: 10036191Abstract: A vehicle door opening/closing apparatus includes: a support member that has a telescopic shaft shape, is interposed between a body and a door of a vehicle, and thereby is capable of holding the door at an open position, wherein the support member includes a cylindrical housing that accommodates a drive source, and a joint member that is fixed with a part thereof inserted into an end portion of the corresponding housing and is attached on the body or the door of the vehicle, and wherein the joint member has a contact portion which comes into contact with the housing when the joint member is fixed to the housing, and on which convex portions and concave portions recessed to an inner side in a radial direction with respect to the convex portions are alternately provided in a circumferential direction.Type: GrantFiled: September 19, 2016Date of Patent: July 31, 2018Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Hiroki Katsuyama, Kimihide Kato, Koji Oe, Takayuki Sengoku, Keisuke Haruta, Jun Tsukagoshi
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Publication number: 20170275939Abstract: A door opening and closing device for a vehicle includes: a supporting member interposed between a vehicle body and a door, and supporting the door to be openable and closable. The supporting member includes first and second housings whose one end sides are linked to the vehicle body or the door via a linking unit, a spindle, a spindle nut, a coil spring biasing the first and second housings in a direction in which the first and second housings are separated from each other, a motor disposed in the first housing and rotating and driving the spindle, a case accommodating the motor therein, and a spline engaging unit engaging the first housing with the case or a metal member joined to the case not to be relatively movable in the rotational direction using a spline.Type: ApplicationFiled: March 17, 2017Publication date: September 28, 2017Applicant: Aisin Seiki Kabushiki KaishaInventors: Jun TSUKAGOSHI, Koji OE, Kimihide KATO, Hiroki KATSUYAMA, Takayuki SENGOKU, Keisuke HARUTA
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Publication number: 20170089113Abstract: A vehicle door opening/closing apparatus includes: a support member that has a telescopic shaft shape, is interposed between a body and a door of a vehicle, and thereby is capable of holding the door at an open position, wherein the support member includes a cylindrical housing that accommodates a drive source, and a joint member that is fixed with a part thereof inserted into an end portion of the corresponding housing and is attached on the body or the door of the vehicle, and wherein the joint member has a contact portion which comes into contact with the housing when the joint member is fixed to the housing, and on which convex portions and concave portions recessed to an inner side in a radial direction with respect to the convex portions are alternately provided in a circumferential direction.Type: ApplicationFiled: September 19, 2016Publication date: March 30, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Hiroki KATSUYAMA, Kimihide KATO, Koji OE, Takayuki SENGOKU, Keisuke HARUTA, Jun TSUKAGOSHI
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Publication number: 20140137477Abstract: A vehicle door opening and closing apparatus includes: a supporting member having an expandable and contractible shape and configured to be capable of holding a door at an opened position by being interposed between a body and the door, a socket provided on at least one of shaft end portions of the supporting member and configured to form a rotation coupling point of the supporting member by being fitted into a ball-shaped fitting portion at a coupling portion with respect to the supporting member, and a retaining ring provided in a fitting depression of the socket and capable of retaining the ball-shaped fitting portion in the fitting depression by reducing a diameter of the opening portion of the fitting depression. The socket is demountable from the shaft end portion in a state of being fitted to the ball-shaped fitting portion.Type: ApplicationFiled: November 14, 2013Publication date: May 22, 2014Applicant: Aisin Seiki Kabushiki KaishaInventors: Kouji OOE, Takeshi YAMAMOTO, Kimihide KATO, Takayuki SENGOKU, Keisuke HARUTA