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

IPC: B60T8/17 ,  B60T8/172 ,  B60T8/34 ,  B60T13/20 ,  B60T13/66 ,  B60T13/74 ,  B60T17/02

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.

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

IPC: B60T8/172 ,  H02P6/28 ,  B60T8/40 ,  H02P6/08 ,  B60T8/48 ,  B60T8/17

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.