公开(公告)号：US20250128607A1

公开(公告)日：2025-04-24

申请号：US18692005

申请日：2022-09-20

Applicant: Hitachi Astemo, Ltd.

Inventor： Hao YU ,  Rikiya YOSHIZU ,  Shotaro ITO

IPC: B60L7/26

Abstract: A braking mechanism is configured to press a brake pad against a disk rotor that rotates together with a wheel. An ECU includes a control portion configured to control the braking mechanism. The control portion acquires a control condition including at least one of information regarding a running environment of a running road on which a vehicle runs or information regarding a state of the vehicle. The control portion controls a clearance amount between the disk rotor and the brake pad independently for each of wheels of the vehicle based on the acquired control condition.

公开(公告)号：US20230044286A1

公开(公告)日：2023-02-09

申请号：US17788433

申请日：2020-12-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Hao YU ,  Takuya USUI

IPC: B60T13/74 ,  F16D55/226 ,  F16D65/18 ,  F16D65/097

Abstract: A disk brake includes a brake mechanism configured to apply a braking force by advancing a piston in a cylinder portion based on driving of an electric motor to thus press inner and outer brake pads against a disk rotor, and an elastic member configured to bias the inner and outer brake pads in an axial direction of the disk rotor and in a direction away from the disk rotor. A biasing force of the elastic member is greater than sliding resistance of the piston on the cylinder portion. Due to this configuration, the disk brake can effectively prevent or reduce the drags of the inner and outer brake pads.