公开(公告)号：US20240375629A1

公开(公告)日：2024-11-14

申请号：US18690119

申请日：2022-09-27

Applicant: ADVICS CO., LTD.

Inventor： Yuichi SAKAKIBARA ,  Ryota MAENO ,  Atsushi TAKAHASHI ,  Tsuyoshi OTAKE ,  Shingo ONODA ,  Haruo ARAKAWA

IPC: B60T13/74

Abstract: An electric braking device generates a braking force at a wheel via application of a pressing force by a piston by linear motion of the piston in response to the transmission of a forward-direction rotational torque from an electric motor to a linear motion conversion mechanism. The electric braking device is provided with a one-way clutch that cuts off the transmission of a rotational torque between the electric motor and the linear motion conversion mechanism when applied with a rotational torque in a direction opposite to the forward direction and having a magnitude equal to or greater than a predetermined value.

公开(公告)号：US20240375630A1

公开(公告)日：2024-11-14

申请号：US18690199

申请日：2022-09-28

Applicant: ADVICS CO., LTD.

Inventor： Ryota MAENO ,  Satoshi HIRATA ,  Atsushi TAKAHASHI ,  Tsuyoshi OTAKE

IPC: B60T13/74

Abstract: This electric braking device comprises a linear motion conversion mechanism having a screw shaft caused to rotate by an electric motor, and a nut that moves linearly in response to the rotation of the screw shaft. The electric braking device generates braking force in a vehicle wheel due to a piston coupled to the nut moving linearly within a cylinder and applying pressure to brake fluid. In the electric braking device, a coil spring, of which the extending/retracting direction is the linear motion direction of the piston, is installed in such a state as to be sandwiched between the piston and the screw shaft, so as to be compressed in response to the linear movement of the screw shaft in a direction for reducing braking force and to generate repulsive force against the compression.

公开(公告)号：US20240375631A1

公开(公告)日：2024-11-14

申请号：US18690573

申请日：2022-09-28

Applicant: ADVICS CO., LTD.

Inventor： Takuto KAWAI ,  Ryota MAENO

IPC: B60T13/74 ,  F16D65/18 ,  F16D121/04 ,  F16D121/24 ,  F16D125/40 ,  F16D125/48 ,  F16D127/06

Abstract: An electric braking device includes an actuator that, in a case in which an electric motor rotates in a second rotational direction due to a piston moving in a second direction which is the direction in which braking force decreases due to an external force, is driven to inhibit the piston from moving in the second direction by using electric power generated by the electric motor as the electric motor rotates in the second rotational direction.

公开(公告)号：US20240208480A1

公开(公告)日：2024-06-27

申请号：US18575449

申请日：2022-07-29

Applicant: ADVICS CO., LTD.

Inventor： Takahiro MASAKI ,  Ryota MAENO

IPC: B60T17/22 ,  B60T8/171

CPC classification number: B60T17/22 ,  B60T8/171

Abstract: During a normal condition of a braking control device, a first instruction unit gives instructions of braking force to be applied to a first wheel and a third wheel, and a second instruction unit gives instructions of braking force to be applied to a second wheel and a fourth wheel. When a failure occurs in the first instruction unit and the first instruction unit can no longer give the instructions of the braking force to be applied to the first wheel and the third wheel, the second instruction unit takes over the task of giving the instruction of braking force to be applied to the first wheel, and a third instruction unit takes over the task of giving the instruction of braking force to be applied to the third wheel.