According to at least one aspect, the present disclosure provides a method of controlling an electro-hydraulic brake including an electronic brake-force distribution (EBD) control function, the method comprising: an emergency braking determination operation of determining whether emergency braking is required for a vehicle; a motor control operation of controlling a current flowing in a motor connected to a main master cylinder to increase hydraulic pressure supplied to wheel brakes when it is determined that the emergency braking is required; a rear wheel inlet valve closing operation of closing an inlet valve connected to a rear wheel brake for a predetermined time so that a pressure of the rear wheel brake is not increased earlier than a pressure of a front wheel brake; a closed time period calculation operation of calculating a time during which the inlet valve is maintained in a closed state; and a rear wheel inlet valve opening operation of determining whether a time during which the inlet valve is closed exceeds a closed time period (t), maintaining the inlet valve in the closed state until the time reaches the closed time period (t), and opening the inlet valve when the time exceeds the closed time period (t).

A control device and a method for operating an electromechanical brake booster of a brake system configured to execute anti-lock control actions, including the steps: determining a setpoint variable regarding a setpoint brake pressure to be produced by the electromechanical brake booster, in view of at least a differential travel; and controlling the electromechanical brake booster in view of the determined setpoint variable; at least during an anti-lock control action carried out in the brake system, it being ascertained if the differential travel lies outside of a specified normal value range, and in some instances, the additional steps being executed: determining a correction variable for the setpoint variable in view of at least a difference between the determined setpoint variable and an actual variable regarding an actual pressure present in at least part of the volume of the brake system, and controlling the electromechanical brake booster in additional view of the determined correction variable.

A supervising device for monitoring the operation of an anti-slip device is described; the supervising device is arranged to: acquire estimated instantaneous linear speeds associated with axles controlled by the anti-slip device; compare the estimated instantaneous linear speeds with a linear reference speed; monitor the state of the pressures to the brake cylinders; determine whether the anti-slip device is working correctly, depending on predetermined trends of each of the estimated instantaneous linear speeds associated with the axles in the slipping phase, with respect to the reference linear speed, in association with each of the pressures to the brake cylinders associated with the axles adjust the preloaded time value in at least one of the timing devices when the supervising device determines that the anti-slip device is not working correctly.

An aircraft brake control system for controlling a plurality of brakeable wheels of a landing gear. Each brakeable wheel includes a brake actuator and a wheel speed sensor. The system includes a controller configured to receive aircraft control parameters and provide brake commands to the brake actuator of each wheel. The controller being configured to activate pre-retraction braking in response to an aircraft control parameter indicating that landing gear retraction is required and execute a functional brake test during pre-retraction braking.

The present disclosure relates to an electronic brake system and an operation method thereof. The electronic brake system includes a reservoir in which a fluid is stored, a hydraulic pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston in response to a signal from a pedal displacement sensor detecting a displacement of a brake pedal, a hydraulic control unit including a first hydraulic unit configured to control the hydraulic pressure to be transferred from the hydraulic pressure supply device to a first hydraulic circuit including two wheel cylinders, and a second hydraulic unit configured to control the hydraulic pressure to be transferred from the hydraulic pressure supply device to a second hydraulic circuit including other two wheel cylinders.

Provided is an electronic brake system. The electronic brake system according to an embodiment of the disclosure includes a reservoir configured to store a pressing medium; a master cylinder connected to a brake pedal; a pedal simulator connected to the master cylinder; a hydraulic pressure supply device configured to generate hydraulic pressure by operating a hydraulic piston by an electrical signal output corresponding to a displacement of the brake pedal; a hydraulic control unit comprising a first hydraulic circuit and a second hydraulic circuit, and configured to control hydraulic pressure transmitted to the first hydraulic circuit and the second hydraulic circuit, the first hydraulic circuit including a first wheel cylinder and a second wheel cylinder, the second hydraulic circuit including a third wheel cylinder and a fourth wheel cylinder.

Disclosed herein an electronic brake system includes a first block in which a mechanical unit operated mechanically in association with a brake pedal is disposed; a second block in which an electrical unit electronically operated and controlled by an electronic control unit is disposed; and a connection line configured to hydraulically connect the first block and the second block, and the first block and the second block are installed at positions spaced apart in a vehicle so that mountability of the brake system and the degree of freedom in design of the vehicle may be improved.

A braking system and method utilizing a simplified estimate of a distance between two locations on the earth based on spherical geometry. A braking system utilizing the aforementioned simplified estimate does not require computationally intensive calculations and is more efficient and better equipped to handle real-time generation of distance estimates for braking needs and variable conditions. In the present invention, geodesics evaluations are not used; rather, a modified Haversine formula that simplifies computations is used, including a one-time computation of the cosine of latitude coordinate.

A braking system and method utilizing a simplified estimate of a distance between two locations on the earth based on spherical geometry. A braking system utilizing the aforementioned simplified estimate does not require computationally intensive calculations and is more efficient and better equipped to handle real-time generation of distance estimates for braking needs and variable conditions. In the present invention, geodesics evaluations are not used; rather, a modified Haversine formula that simplifies computations is used, including a one-time computation of the cosine of latitude coordinate.

Systems and methods to control the vehicle speed of a vehicle includes a motor and a controller coupled to the motor. The controller is structured to: determine that a speed of a vehicle is at or above a predetermined speed limit; activate a motor speed governor responsive to an input received by the controller, wherein the motor speed governor is structured to control a vehicle speed; and adjust an output torque based on the vehicle speed being at or above the predetermined speed limit.