A system is provided having a normal operational mode and a modulated operational mode. The system includes an input device configured to generate a command signal. The system further includes a brake controller configured to generate a brake actuation signal in response to the command signal. The system further includes a fluid source configured to provide fluid in response to the brake actuation signal. The fluid has a first portion and a second portion. The system further includes a return valve in fluid communication with the fluid source, and configured to return the first portion of the fluid to the fluid source when the system is in the modulated operational mode. The system further includes a wheel brake in fluid communication with the fluid source and configured to engage a wheel of the aircraft in response to at least the second portion of the fluid.

A system is provided having a normal operational mode and a modulated operational mode. The system includes an input device configured to generate a command signal. The system further includes a brake controller configured to generate a brake actuation signal in response to the command signal. The system further includes a fluid source configured to provide fluid in response to the brake actuation signal. The fluid has a first portion and a second portion. The system further includes a return valve in fluid communication with the fluid source, and configured to return the first portion of the fluid to the fluid source when the system is in the modulated operational mode. The system further includes a wheel brake in fluid communication with the fluid source and configured to engage a wheel of the aircraft in response to at least the second portion of the fluid.

An electric automobile braking device includes a master cylinder that has no vacuum booster and a hydraulic booster device that can increase a brake fluid pressure generated by the master cylinder. Switching is possible between a normal braking mode in which hydraulic braking and regenerative braking are used in combination when a percentage charge of a battery is less than a threshold value and a regenerative braking restriction mode in which hydraulic braking is permitted and regenerative braking is restricted when the percentage charge is a threshold value or greater. In the regenerative braking restriction mode, when a depressing force of a brake pedal by a driver exceeds a first depressing force over a predetermined period of time, an operation of the hydraulic booster device is suppressed.

An electric automobile braking device includes a master cylinder that has no vacuum booster and a hydraulic booster device that can increase a brake fluid pressure generated by the master cylinder. Switching is possible between a normal braking mode in which hydraulic braking and regenerative braking are used in combination when a percentage charge of a battery is less than a threshold value and a regenerative braking restriction mode in which hydraulic braking is permitted and regenerative braking is restricted when the percentage charge is a threshold value or greater. In the regenerative braking restriction mode, when a depressing force of a brake pedal by a driver exceeds a first depressing force over a predetermined period of time, an operation of the hydraulic booster device is suppressed.

A hydraulic actuation device (1) for a brake device of a wind turbine including a hydraulic control line (10), which runs from a hydraulic system circuit (P) of a wind turbine to at least one brake cylinder (2) of a brake device. At least one restrictor (13) is arranged in the control line (10). At least one branch line (14) includes a pressure regulating member (15) that branches off from the control line (10) upstream of the restrictor (13) in the pressure build-up direction, bypassing the restrictor (13), and leads back into the control line (10) downstream of the restrictor (13). The pressure regulating member (15) open when the pressure present on the output side is low, but closes when the pressure at the pressure regulating member (15) on the output side of the pressure regulating member (15) exceeds a preset closing pressure (P.sub.S).

A vehicle control apparatus is a vehicle control apparatus controlling a vehicle and provided with a regenerative device generating electric power while applying a regenerative braking force by performing regenerative electric power generation, an electric power supply capable of exchanging electric power with the regenerative device, and a hydraulic device applying a hydraulic braking force attributable to a hydraulic pressure, and is provided with an electronic control device controlling the regenerative device and the hydraulic device so as to adjust the ratios of the regenerative braking force and the hydraulic braking force to a required braking force required for the braking of the vehicle based on an input electric power value input into the electric power supply.

A vehicle control apparatus is a vehicle control apparatus controlling a vehicle and provided with a regenerative device generating electric power while applying a regenerative braking force by performing regenerative electric power generation, an electric power supply capable of exchanging electric power with the regenerative device, and a hydraulic device applying a hydraulic braking force attributable to a hydraulic pressure, and is provided with an electronic control device controlling the regenerative device and the hydraulic device so as to adjust the ratios of the regenerative braking force and the hydraulic braking force to a required braking force required for the braking of the vehicle based on an input electric power value input into the electric power supply.

A braking arrangement for a vehicle includes a source of pressurized air for supplying pressurized air, a wheel comprising a tire and a first pneumatic brake arrangement, the first pneumatic brake arrangement including a brake chamber and a brake, an anti-lock brake valve in a line between the brake chamber and the source of pressurized air, the anti-lock brake valve opening to connect the brake chamber to the source of pressurized air and closing to disconnect the brake chamber from the source of pressurized air, and an electronic control unit configured to open and close the anti-lock brake valve during an anti-lock braking operation, the electronic control unit being configured to set or adjust a rate at which pressure in the brake chamber is increased during the anti-lock braking operation by adjusting opening timing of the anti-lock brake valve. A method for changing performance of a braking arrangement is provided.

A method for dimensioning a component of a braking system; the braking system having at least two brake-circuit partial circuits; each brake-circuit partial circuit having at least one pump element for building up a brake-circuit pressure and/or for returning brake-circuit fluid in an ABS case, the pump elements of the at least two brake-circuit partial circuits being operable using a motor element; and the at least two brake-circuit partial circuits being separable using a separating element, so that different brake-circuit pressures may be created in the at least two brake-circuit partial circuits.

A method for dimensioning a component of a braking system; the braking system having at least two brake-circuit partial circuits; each brake-circuit partial circuit having at least one pump element for building up a brake-circuit pressure and/or for returning brake-circuit fluid in an ABS case, the pump elements of the at least two brake-circuit partial circuits being operable using a motor element; and the at least two brake-circuit partial circuits being separable using a separating element, so that different brake-circuit pressures may be created in the at least two brake-circuit partial circuits.