A master brake cylinder arrangement includes at least one piston arrangement with a piston movably guided in a receiving bore in a master brake cylinder housing. The piston, together with the receiving bore, delimits a pressure chamber which is in fluid connection with a hydraulic brake circuit and may be moved along a movement axis between an initial position and an actuation position. A position detecting device detects movement of the piston caused by actuation is provided within the receiving bore. The position detecting device has a sensor element, which is movable as a function of a piston movement, and a position detecting sensor, which is arranged fixed on the master brake cylinder housing. The sensor element is received and guided in the master brake cylinder housing independently of the piston and is capable of interacting with the piston for deflection as a function of the piston movement.

According to an embodiment, it provides a brake system comprising a pedal simulator connected to a master cylinder and configured to provide a driver with a pedal feeling upon receiving a hydraulic pressure in accordance with a driver's pedal force, wherein the pedal simulator comprises: a damping housing having an air chamber, installed at a block having a bore communicating with an oil hole connected to the master cylinder, and configured to seal the bore; a reaction force unit configured to provide a pedal reaction force by being compressed by oil introduced through the oil hole; and a check valve disposed in a passage through which the air chamber communicates with the external air.

An electric brake system is disclosed. The electric brake system controlling a hydraulic pressure delivered to a wheel cylinder provided at each of wheels according to a pedal effort of a brake pedal, includes a reservoir configured to store oil; a master cylinder including first and second hydraulic ports, each of which is connected to two wheels, and configured to generate a hydraulic pressure by the pedal effort of the brake pedal; a pedal simulator configured to provide a reaction force of the brake pedal by being connected to the master cylinder, and connected to the reservoir; a simulation valve installed at an oil flow path connecting the pedal simulator to the reservoir, or at an oil flow path connecting the master cylinder to the pedal simulator; a bypass flow path branching off from the oil flow path and connected to the reservoir; and a relief valve provided at the bypass flow path and configured to enable oil to flow when the simulation valve operates abnormally.

An electric brake system is disclosed. The electric brake system controlling a hydraulic pressure delivered to a wheel cylinder provided at each of wheels according to a pedal effort of a brake pedal, includes a reservoir configured to store oil; a master cylinder including first and second hydraulic ports, each of which is connected to two wheels, and configured to generate a hydraulic pressure by the pedal effort of the brake pedal; a pedal simulator configured to provide a reaction force of the brake pedal by being connected to the master cylinder, and connected to the reservoir; a simulation valve installed at an oil flow path connecting the pedal simulator to the reservoir, or at an oil flow path connecting the master cylinder to the pedal simulator; a bypass flow path branching off from the oil flow path and connected to the reservoir; and a relief valve provided at the bypass flow path and configured to enable oil to flow when the simulation valve operates abnormally.

A brake actuation system of a hydraulic brake system, for actuating at least one front axle brake circuit having at least one front wheel brake, and for actuating at least one rear axle brake circuit having at least one rear wheel brake, the brake actuation system including at least one hand brake module which, when actuated, can activate both brake circuits. In order to provide an improved brake actuation system with a plurality of actuation capabilities, which system can also be utilized in light motorcycles and scooters without the restrictions of existing brake actuation systems, while simultaneously offering a simple concept and a reduced cost and weight, the hand brake module is hydraulically coupled into a combined hand brake module, the combined hand brake module being designed to simultaneously generate brake pressure in both brake circuits.

A brake actuation system of a hydraulic brake system, for actuating at least one front axle brake circuit having at least one front wheel brake, and for actuating at least one rear axle brake circuit having at least one rear wheel brake, the brake actuation system including at least one hand brake module which, when actuated, can activate both brake circuits. In order to provide an improved brake actuation system with a plurality of actuation capabilities, which system can also be utilized in light motorcycles and scooters without the restrictions of existing brake actuation systems, while simultaneously offering a simple concept and a reduced cost and weight, the hand brake module is hydraulically coupled into a combined hand brake module, the combined hand brake module being designed to simultaneously generate brake pressure in both brake circuits.

A hydraulic unit for generating brake pressure for a hydraulic brake system, comprising a housing which is produced from a cast blank, wherein the cast blank has at least one receiving cavity which is provided for machining to form a receiving profile for sealingly receiving a connecting piece, which is connected to a fluid container and can be plugged into the receiving profile along a plug-in axis, wherein the housing comprises at least one piston bore for receiving at least one piston, which is driven along a piston bore axis into the cast blank.

A hydraulic unit for generating brake pressure for a hydraulic brake system, comprising a housing which is produced from a cast blank, wherein the cast blank has at least one receiving cavity which is provided for machining to form a receiving profile for sealingly receiving a connecting piece, which is connected to a fluid container and can be plugged into the receiving profile along a plug-in axis, wherein the housing comprises at least one piston bore for receiving at least one piston, which is driven along a piston bore axis into the cast blank.

A brake system for controlling a brake of a unit hauled by a vehicle, the brake system including a first pedal for braking a right rear wheel of the vehicle through a first braking circuit, a second pedal for braking a left rear wheel of the vehicle through a second braking circuit, an input line arrangement including a first input line for receiving a fluid from the first braking circuit and a second input line for receiving a fluid from the second braking circuit, at least one output line for sending a fluid to the brake of the hauled unit, and a selective connector for selectively connecting the input line arrangement to the output line by setting a first connection configuration when the vehicle has a speed greater than a threshold value and a second connection configuration when the vehicle has a speed lower than the threshold value, whereby in the first connection configuration pushing any of the pedals activates the brake of the hauled unit, and in the second connection configuration pushing only one of the pedals leaves the brake of the hauled unit inactive, so that the vehicle can be steered by braking.

The present invention relates to a master cylinder arrangement (1) for a brake system (10), comprising a tandem master cylinder (2) including a master cylinder housing (20), a first master piston (23) movably arranged in the master cylinder housing (20), a second master piston (24) movably arranged in the master cylinder housing (20), a balancing piston (7) movably arranged in the second master piston (24), and an elastic pedal feel element (50). The invention further relates to a hydraulic system for a brake system as well as a brake system (10).