Patent classifications
B60T17/222
Electric brake system and method of controlling the same
Disclosed herein is an electric brake system including a reservoir in which a pressurizing medium is stored, an integrated master cylinder including a master piston connected to a brake pedal and a master chamber having a volume changed by a displacement of the master piston, a hydraulic pressure supply device including a first pressure chamber provided in front of a hydraulic piston and a second pressure chamber provided behind the hydraulic piston and configured to move the hydraulic piston forward or backward to generate a hydraulic pressure, first and second hydraulic circuits configured to control a flow of the pressurizing medium supplied to a wheel cylinder, a hydraulic pressure control unit configured to control the flow of the pressurizing medium provided from the hydraulic pressure supply device to the first and second hydraulic circuits, a connection flow path connecting the master chamber and the second pressure chamber, a control valve provided on the connection flow path to control the flow of the pressurizing medium, and a controller electrically connected to the control valve, wherein the controller is configured to open the control valve to supply the pressurizing medium from the master chamber to the second pressure chamber in response to a sudden braking request by a driver.
REDUNDANCY BRAKE APPARATUS AND HYDRAULIC BRAKE APPARATUS INCLUDING THE SAME
A redundancy brake apparatus includes a redundancy hydraulic circuit part connected to a main brake apparatus and a wheel cylinder part of a vehicle to allow brake fluid to flow, and a hydraulic block for auxiliary braking including an oil accommodation part that accommodates the brake fluid and is connected to the redundancy hydraulic circuit part to allow the brake fluid to flow, and an opening formed to allow air to flow into the oil accommodation part.
Brake fluid reservoir
A brake fluid reservoir (1) comprising a receptacle (2), adapted to contain brake fluid, said receptacle (2) forming a bottom wall (3) and a perimetric wall (4), wherein the bottom wall (3) and the perimetric wall (4) define an inner compartment (5) for containing the brake fluid, wherein the perimetric wall (4) defines an inlet opening (6) opposite to the bottom wall (3) communicating with the inner compartment (5), and the bottom wall (3) defines an outlet opening (7) communicating with the inner compartment (5) and fluidically connectable to a braking system; a cap (8) configured to close the inlet opening (6); wherein the receptacle (2) defines an auxiliary opening (9), distinct from the inlet opening (6) and the outlet opening (7), communicating with the inner compartment (5); and wherein the reservoir (1) comprises a valve (10) positioned in the auxiliary opening (9), said valve (10) being configured to regulate a flow of brake fluid through the auxiliary opening (9).
BRAKE SYSTEM AND METHOD FOR CONTROLLING THE SAME
A brake system is provided comprising a reservoir, master cylinder, hydraulic pressure supply unit, hydraulic control unit, pressure sensor, and controller. The controller identifies a filling control sequence start when a pressure detection signal rises above and maintains a predetermined first reference pressure during standby mode. Subsequently, the controller identifies air evacuation mode entry when the signal falls below a second reference pressure, and fluid filling mode entry when the signal rises again. During air evacuation mode, the controller repeatedly opens and closes hydraulic control unit valves to discharge air from fluid passages. During fluid filling mode, the controller drives the hydraulic pressure supply unit motor to supply pressure medium. This autonomous filling control system operates solely on pressure sensor signals without requiring external equipment communication, enabling self-contained brake system charging through precise pressure profile analysis and automated mode transitions.
Hydraulic Safety Manager
A hydraulic safety manager is described. The hydraulic safety manager may be able to measure hydraulic pressure and ensure sufficient hydraulic capability before allowing operation of an associated vehicle. If a minimum pressure is not detected at the hydraulic system, a vehicle lock-out feature may be enabled (or not disabled) such that activation of the vehicle is not enabled or allowed (and/or other actions may be performed, such as generation of warnings or activation of fail-safe measures).