Brake apparatus and braking control apparatus

摘要

A brake apparatus includes: a displacement member which is displaced with respect to a disk rotor; a friction member which presses the disk rotor by being pressed by the displacement member thus displaced so as to generate braking force; a hydraulic braking apparatus which displaces the displacement member using hydraulic pressure; an electric-powered braking apparatus which displaces the displacement member using a force that differs from the hydraulic pressure; and a brake ECU which controls the hydraulic braking apparatus based on information acquired from a detection unit which detects information having a correlation with the hydraulic pressure applied to the displacement member. When the electric-powered braking apparatus operates in a state in which braking is being performed by the hydraulic braking apparatus, the brake ECU controls the hydraulic braking apparatus or otherwise the electric-powered braking apparatus so as to suppress hydraulic pressure fluctuation.

主权项

1. A brake apparatus comprising:
a displacement member configured to be displaced with respect to a disk rotor; a friction member configured to press the disk rotor by being pressed by the displacement member thus displaced; a hydraulic braking apparatus configured to displace the displacement member by means of hydraulic pressure; an electric-powered braking apparatus configured to displace the displacement member by means of a force that differs from the hydraulic pressure; a control unit configured to control the hydraulic braking apparatus based on information acquired from a detection unit configured to detect information having a correlation with the hydraulic pressure applied to the displacement member,
wherein, when the electric-powered braking apparatus operates to displace the displacement member in a state in which braking is being performed by means of the hydraulic braking apparatus, the control unit controls the hydraulic braking apparatus so as to suppress fluctuation of the hydraulic pressure, andwherein, when the control unit acquires electric-powered braking apparatus operation start information in a state in which braking is being performed by means of the hydraulic braking apparatus, the control unit controls the control operation of the hydraulic control apparatus so as to raise responsiveness of the operation of the hydraulic braking apparatus to a higher level; and a hydraulic pressure sensor configured as a detection unit which detects information having a correlation with the hydraulic pressure applied to the displacement member,
wherein, when the electric-powered braking apparatus is in a state in which it is not operating, the control unit is configured to control the hydraulic braking apparatus based on an output value of the hydraulic pressure sensor using as a reference a target hydraulic pressure provided with a dead-band region having a first width, andwherein, when the control unit acquires the electric-powered braking apparatus operation start information in a state in which braking is being performed by means of the hydraulic braking apparatus, the control unit is configured to control the hydraulic braking apparatus based on an output value of the hydraulic pressure sensor using as a reference a target hydraulic pressure provided with a dead-band region having a second width that is smaller than the first width.