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公开(公告)号：US11787292B2
公开(公告)日：2023-10-17
申请号：US15733910
申请日：2019-06-24
Applicant: ADVICS CO., LTD.
Inventor： Masaki Maruyama , Shunya Watanabe
CPC classification number: B60L7/26 , B60T8/17 , B60T13/686 , B60T2270/604
Abstract: A brake control device applied to a vehicle including a regenerative generator connected to a front wheel has an electric pump, and first and second pressure adjustment valves. The first pressure adjustment valve is provided in a brake fluid reflux path including the electric pump, adjusts the brake fluid to a first hydraulic pressure, and adjusts a rear wheel hydraulic pressure in a rear wheel cylinder to the first hydraulic pressure. The second pressure adjustment valve is provided in the reflux path, reduces the first hydraulic pressure to a second hydraulic pressure, and adjusts front wheel hydraulic pressure in a front wheel cylinder to the second hydraulic pressure. A front wheel flow rate to increase the front wheel hydraulic pressure is calculated using a brake operation member operation amount and a regeneration amount of the regenerative generator. The first pressure adjustment valve is controlled using the front wheel flow rate.
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Patent Agency Ranking
公开(公告)号：US12179720B2
公开(公告)日：2024-12-31
申请号：US17057716
申请日：2019-06-21
Applicant: ADVICS CO., LTD.
Inventor： Masaki Maruyama , Shunya Watanabe
Abstract: A brake control device adjusts a hydraulic pressure in a wheel cylinder in response to an operation amount of a brake operation member, and includes “a pressure adjustment unit that includes an electric pump and a pressure adjustment valve and adjusts hydraulic pressure in a pressure adjustment fluid path between the electric pump and the pressure adjustment valve”, and “a controller that controls the electric pump and the pressure adjustment valve”. The controller calculates an operation speed equivalent amount based on the operation amount, calculates a target rotation speed based on the operation speed equivalent amount, and controls the electric pump such that an actual rotation speed of the electric pump approaches the target rotation speed.
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公开(公告)号：US11518351B2
公开(公告)日：2022-12-06
申请号：US16615506
申请日：2018-05-29
Applicant: ADVICS CO., LTD.
Inventor： Manabu Tanaka , Shunya Watanabe
Abstract: This braking control device pumps a brake fluid from a reservoir to each wheel cylinder by one fluid pump and includes an electric motor which drives the fluid pump; and a controller which controls the electric motor. The controller calculates a target fluid pressure on the basis of at least one among the vehicle wheel speed, the vehicle deceleration state, and the turning state of the vehicle, calculates a target discharge amount for the fluid pump on the basis of the target fluid pressure, and controls the electric motor on the basis of the target discharge amount. The controller has a front wheel calculation map of the relationship between the fluid pressure and the inflow volume of the brake fluid corresponding to a front wheel cylinder, and a rear wheel calculation map corresponding to a rear wheel cylinder, and calculates the target discharge amount on the basis of the maps.
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公开(公告)号：US12017624B2
公开(公告)日：2024-06-25
申请号：US17288034
申请日：2019-11-18
Applicant: ADVICS CO., LTD.
Inventor： Masaki Maruyama , Yoshio Masuda , Shunya Watanabe
CPC classification number: B60T13/662 , B60T8/17 , B60T13/686 , B60T13/62 , B60T2270/402 , B60T2270/82
Abstract: A vehicle braking device includes a first supply unit supplying fluid to main flow channels connected to wheel cylinders of a vehicle, a differential solenoid valve provided on the main flow channels and generating a differential pressure across the differential solenoid valve, a second supply unit supplying fluid to the wheel cylinders by drawing at least some fluid supplied from the first supply unit through branch flow channels branching off from the main flow channels upstream of the differential solenoid valve, and a setting unit setting a supply amount of fluid supplied from the first supply unit in accordance with a draw amount of fluid drawn by the second supply unit.
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公开(公告)号：US11807215B2
公开(公告)日：2023-11-07
申请号：US17251414
申请日：2019-06-21
Applicant: ADVICS CO., LTD.
Inventor： Masaki Maruyama , Shunya Watanabe
IPC: B60W20/14 , B60T13/66 , B60W10/08 , B60W10/188 , B60W10/192
CPC classification number: B60W20/14 , B60T13/662 , B60T13/667 , B60W10/08 , B60W10/188 , B60W10/192 , B60W2510/244 , B60W2710/182
Abstract: A brake control device is applied to a vehicle including a regenerative generator. The brake control device includes a pressure adjustment unit that includes an electric pump and a pressure adjustment valve, and that adjusts adjustment liquid pressure of a pressure adjustment fluid path between the electric pump and the pressure adjustment valve; and a controller that controls the electric pump and the pressure adjustment valve. The controller, before starting a replacement operation to replace a regenerative braking force by the regenerative generator with a friction braking force by the adjustment liquid pressure, performs preceding pressurization to increase the adjustment liquid pressure from “0” and maintain the adjustment liquid pressure at predetermined liquid pressure, and after performing the preceding pressurization, increases the adjustment liquid pressure more than the predetermined liquid pressure by increasing a rotation speed of the electric pump, and then execute the replacement operation.
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公开(公告)号：US10899328B2
公开(公告)日：2021-01-26
申请号：US16090760
申请日：2017-04-07
Applicant: ADVICS CO., LTD.
Inventor： Manabu Tanaka , Shunya Watanabe
Abstract: A braking control device comprising: an operation amount acquisition device that obtains an operation amount for a braking operation member; a pressurizing unit that presses a friction member to a rotating member fixed to a wheel, by using an electric motor; a control that controls the output of the motor based on the operation amount; a pressing force acquisition device that obtains the actual pressing force of the friction member pressing on the rotating member; and a rotation angle acquisition device that obtains the actual rotation angle of the motor. The control: stores the correlation between the actual pressing force and the actual rotation angle; approximates a function map indicated by a second degree or higher polynomial based on the correlation; calculates a target rotation angle based on the operation amount and the function map; and controls the motor such that the actual rotation angle matches the target rotation angle.
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