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公开(公告)号：US20240132035A1
公开(公告)日：2024-04-25
申请号：US18547351
申请日：2022-03-28
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
CPC classification number: B60T8/885 , B60T8/171 , B60T8/172 , B60T8/17551 , B60T8/58 , B60T8/92 , B60T2220/04 , B60T2230/04 , B60T2240/00 , B60T2250/00 , B60T2250/04 , B60T2270/82
Abstract: A vehicle which adopts a control device as a braking control device includes a sensor that acquires a rotation angle of a wheel. The control device includes a first distance calculation unit, a second distance calculation unit, and a braking control unit. The first distance calculation unit sets a braking force corresponding to a braking operation member operation amount as a reference braking force, estimates vehicle longitudinal acceleration based on the reference braking force, and calculates a braking force reference distance estimating a moving distance until the vehicle stops based on the longitudinal acceleration. The second distance calculation unit calculates a wheel reference distance estimating the vehicle moving distance based on a detection signal of the sensor and a wheel diameter. The braking control unit executes feedback control for controlling the vehicle braking force so that a difference between the braking force reference distance and the wheel reference distance decreases.
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公开(公告)号：US20230303042A1
公开(公告)日：2023-09-28
申请号：US18026948
申请日：2021-09-30
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
Abstract: A braking control device executes pre-stop braking control to adjust a braking force when a vehicle stops. The pre-stop braking control includes reduction control that reduces the braking force, and increase control that is executed before the reduction control is started, to increase the braking force. An increasing unit executes the increase control, and a reducing unit executes the reduction control. A calculation unit calculates a braking distance extended by the reduction control, as an extended distance, and calculates a braking distance shortened by the increase control, as a shortened distance. The calculation unit calculates the extended distance to become longer when an operation amount of a braking operation member operated by a driver is reduced during braking than when the operation amount is not reduced. When a difference between the extended distance and the shortened distance is less than a determination value, the reducing unit starts the reduction control.
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公开(公告)号：US20230008900A1
公开(公告)日：2023-01-12
申请号：US17784427
申请日：2020-12-24
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
IPC: B60W40/12 , B60G17/019
Abstract: A vehicle control device includes: an acquiring unit that acquires vehicle height information from a link mechanism type vehicle height sensor that is connected to a lower arm of a suspension that connects a vehicle body and wheels of a vehicle; a storage unit that stores vehicle height error information, which is information representing a relationship between an acting force that is applied to the vehicle in a horizontal direction and an error that is contained in the vehicle height information that is output by the vehicle height sensor; and a correcting unit that corrects the vehicle height information that has been acquired by the acquiring unit, based on the acting force that acts when the vehicle height information is acquired and the vehicle height error information that is stored in the storage unit.
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Patent Agency Ranking
公开(公告)号：US20230356601A1
公开(公告)日：2023-11-09
申请号：US18245724
申请日：2021-09-30
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO , Kazuaki YOSHIDA
IPC: B60L7/26 , B60T8/1755
CPC classification number: B60L7/26 , B60T8/1755 , B60T2270/604 , B60L2260/40
Abstract: A braking control device adjusts a regenerative braking force and a friction braking force applied to a vehicle. The braking control device includes a stopping distance acquisition unit that acquires a distance moved until the vehicle in travel stops, as a stopping distance. The braking control device includes a brake adjustment unit that starts replacement control to replace the regenerative braking force among braking forces, which are applied to the vehicle, with the friction braking force, when the stopping distance becomes smaller than a replacement determination value.
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公开(公告)号：US20230331201A1
公开(公告)日：2023-10-19
申请号：US18341847
申请日：2023-06-27
Applicant: ADVICS CO.., LTD.
Inventor： Yusaku YAMAMOTO
IPC: B60T8/1755 , B60T7/12 , B60W10/18 , B60W40/11
CPC classification number: B60T8/1755 , B60T7/12 , B60W10/18 , B60W40/11 , B60T8/26
Abstract: A brake control device is applied to a brake device that controls a front-wheel braking force and a rear-wheel braking force. The brake control device includes a ratio calculation circuit that calculates a target front and rear braking force distribution ratio based on a target pitch angle, and a brake control circuit that performs a stability control by operating the brake device based on the target front and rear braking force distribution ratio during braking.
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公开(公告)号：US20230219544A1
公开(公告)日：2023-07-13
申请号：US17758904
申请日：2021-01-22
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
Abstract: A braking control device includes a braking control unit that controls a braking device, a load reduction amount derivation unit that derives a reduction amount of a load input from a vehicle body to a suspension for a second wheel, and an anti-force derivation unit that derives an anti-lift force. The braking control unit performs posture braking processing of adjusting the second braking force so that the difference between the reduction amount of the load and the anti-lift force is less than or equal to a difference determination value, and adjusting the first braking force so that the vehicle braking force becomes the required value.
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公开(公告)号：US20230219542A1
公开(公告)日：2023-07-13
申请号：US17758900
申请日：2021-01-22
Applicant: ADVICS CO., LTD.
Inventor： Yusaku YAMAMOTO
IPC: B60T8/1755 , B60T8/1766 , B60L7/26 , B60W10/188 , B60W20/14 , B60W30/04 , B60W30/18 , B60W40/11 , B60W40/107
CPC classification number: B60T8/1755 , B60T8/1766 , B60L7/26 , B60W10/188 , B60W20/14 , B60W30/04 , B60W30/18127 , B60W40/11 , B60W40/107 , B60L2240/42 , B60T2270/604 , B60W2030/041 , B60W2520/16 , B60W2710/182
Abstract: The braking control device includes a control amount derivation unit that derives a target vehicle braking force representing a target value of a vehicle braking force applied, and a braking control unit that controls a regenerative braking device and a frictional braking device based on the target vehicle braking force. When the target vehicle braking force is increased, the braking control unit executes a braking force application process of increasing the frictional braking force applied to the wheel so that such frictional braking force becomes larger than the regenerative braking force applied to the wheel. When the target vehicle braking force is increased, the braking control unit executes a switching process of switching at least a part of the frictional braking force applied to the wheel to the regenerative braking force to increase the regenerative braking force applied to the wheel after execution of the braking force application process.
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公开(公告)号：US20180141527A1
公开(公告)日：2018-05-24
申请号：US15802938
申请日：2017-11-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , ADVICS CO., LTD.
Inventor： Masahiro HARA , Yuji YOSHII , Yusaku YAMAMOTO , Hitoshi TERADA , Takuya NAKANO , Shinya AKIBA
IPC: B60T8/1766 , B60T8/18 , B60T8/58 , B60T8/1755
Abstract: A braking control apparatus performs right and left wheel independent control to approach a slip rate of a rear-right wheel and a rear-left wheel to a target slip rate as an average of slip rates of a front-right wheel and a front-left wheel. In a high-speed range, right and left wheel independent control is started when a deceleration is equal to or larger than a start value that is smaller than a start value used in a low-speed range. In right and left wheel independent control started in the high-speed range, when there is a demand to increase braking pressures of both the rear-right wheel and the rear-left wheel, the braking pressure of the rear wheel located on the outside during the occurrence of deflection of the vehicle resulting from braking is increased, and the braking pressure of the rear wheel located on the inside is prohibited from increasing.
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