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公开(公告)号：US20180339684A1
公开(公告)日：2018-11-29
申请号：US15761581
申请日：2016-09-28
Applicant: ADVICS CO., LTD.
Inventor： Yusuke TAKEYA , Kosuke HASHIMOTO , Shun NOHIRA
Abstract: In the present invention, a brake device is equipped with: differential pressure control valves; pressure adjusting units which are connected to the differential pressure control valves through liquid passages; and a control device which controls the WC pressure Pwc in wheel cylinders by operating the differential pressure control valves and the pressure adjusting units. When predetermined suppression control permission conditions are satisfied while both the supply pumps of the pressure adjusting units and the differential pressure control valves are in operation, the control device performs self-excited vibration suppression control over the differential pressure control valves, the self-excited vibration suppression control being carried out in such a manner that a valve element separated from a valve seat is caused to abut on the valve seat, and, upon abutting on the valve seat, the valve element is separated from the valve seat.
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公开(公告)号：US20190193572A1
公开(公告)日：2019-06-27
申请号：US16330781
申请日：2017-07-25
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Daisuke NAKATA , Kosuke HASHIMOTO , Kenji SAKAMOTO
CPC classification number: B60L7/26 , B60L7/18 , B60L7/24 , B60T8/17 , B60T13/586 , B60T2270/604
Abstract: A vehicle braking device sets a target hydraulic braking force based on the difference between the execution regeneration braking force, which is actually generated regeneration braking force and the requested braking force which is to be applied to the vehicle wheels and includes a hydraulic pressure control portion that raises the target hydraulic braking force by a predetermined value at a timing when the difference between the execution regeneration braking force and the maximum value thereof is equal to or less than a judgement threshold value and a threshold value setting portion that sets the judgement threshold value on the basis of the requested braking force gradient when the liquid amount inside the hydraulic chamber is less than a predetermined amount, and sets the judgement threshold value on the basis of the target hydraulic braking force gradient when the liquid amount is equal to or more than the predetermined amount.
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公开(公告)号：US20200017082A1
公开(公告)日：2020-01-16
申请号：US16496615
申请日：2018-03-29
Applicant: ADVICS CO., LTD.
Inventor： Kenichiro TAKAHASHI , Kosuke HASHIMOTO , Hayato KUBOTA , Daisuke NAKATA
Abstract: Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.
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公开(公告)号：US20190176628A1
公开(公告)日：2019-06-13
申请号：US16324086
申请日：2017-07-19
Applicant: ADVICS CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Daisuke NAKATA , Kosuke HASHIMOTO , Kenji SAKAMOTO
Abstract: This vehicle brake device performs raising processing for raising, by a predetermined raising amount, the target hydraulic pressure of hydraulic fluid when the pressure of the hydraulic fluid starts increasing in order to suppress a delay in response to the increase in the pressure of hydraulic fluid during switching processing for gradually switching at least part of regenerative braking force to hydraulic braking force, and includes a judging portion which judges whether or not required braking force or deceleration is reduced during cooperative control; and a raising amount setting portion which during the raising processing, sets a second predetermined pressure as a raising amount if the judgement result of the judging portion is positive, the second predetermined pressure being smaller than a first predetermined pressure that is the raising amount when the determination result of the determination result is negative.
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