Abstract: A brake system for a two-axle vehicle having a master brake cylinder. The brake system includes at least one connected brake circuit, each having front and rear wheel brake cylinders, front wheel inlet and outlet valves, rear wheel inlet and outlet valves, an accumulator chamber, and a control device via which, by opening the at least one rear wheel outlet valve, a brake fluid pressed out of master brake cylinder is displaceable via the open rear wheel outlet valve into the respectively downstream disposed accumulator chamber. When the at least one front wheel outlet valve is kept closed or closed, the control device is configured to increase and limit a brake pressure prevailing in the respectively associated front wheel brake cylinder to an accumulator chamber pressure actively prevailing in the accumulator chamber of the same brake circuit by keeping open or opening the at least one front wheel inlet valve.

Abstract: A vehicle brake system and method for increasing the brake pressure in a first wheel brake cylinder and for limiting the brake pressure in a second wheel brake cylinder of a vehicle brake system. The method includes increasing a first brake pressure in the first wheel brake cylinder by controlling/holding a wheel inlet valve in its open state and controlling/holding a first wheel outlet valve in its closed state, and limiting an increase of a second brake pressure in the second wheel brake cylinder during the transfer of brake fluid into the first wheel brake cylinder by controlling/holding a second wheel inlet valve in its closed state and controlling a second wheel outlet valve into its open state. The second wheel outlet valve is controlled with a pulse width-modulated signal so that during the transfer of brake fluid, the second wheel outlet valve is permanently in its open state.

Abstract: A control device for a two-stage solenoid valve, including an activation unit which outputs a current flowing through a solenoid coil of the solenoid valve as a switching signal. The solenoid valve is switchable from its de-energized switching state into its energized switching state by increasing a current intensity of the switching signal from zero to a switching current intensity. The solenoid valve is switchable from its energized switching state into its de-energized switching state by designing the activation unit to set the current intensity of the switching signal during a switching time interval to at least one current intensity value between zero and the switching current intensity, reduce it to zero after the switching time interval and during the switching time interval, increase it at least twice, each for a predefined pulse time interval, to a predefined current pulse value between zero and the switching current intensity.

Abstract: A vehicle brake system and method for increasing the brake pressure in a first wheel brake cylinder and for limiting the brake pressure in a second wheel brake cylinder of a vehicle brake system. The method includes increasing a first brake pressure in the first wheel brake cylinder by controlling/holding a wheel inlet valve in its open state and controlling/holding a first wheel outlet valve in its closed state, and limiting an increase of a second brake pressure in the second wheel brake cylinder during the transfer of brake fluid into the first wheel brake cylinder by controlling/holding a second wheel inlet valve in its closed state and controlling a second wheel outlet valve into its open state. The second wheel outlet valve is controlled with a pulse width-modulated signal so that during the transfer of brake fluid, the second wheel outlet valve is permanently in its open state.

Abstract: A brake system for a two-axle vehicle having a master brake cylinder. The brake system includes at least one connected brake circuit, each having front and rear wheel brake cylinders, front wheel inlet and outlet valves, rear wheel inlet and outlet valves, an accumulator chamber, and a control device via which, by opening the at least one rear wheel outlet valve, a brake fluid pressed out of master brake cylinder is displaceable via the open rear wheel outlet valve into the respectively downstream disposed accumulator chamber. When the at least one front wheel outlet valve is kept closed or closed, the control device is configured to increase and limit a brake pressure prevailing in the respectively associated front wheel brake cylinder to an accumulator chamber pressure actively prevailing in the accumulator chamber of the same brake circuit by keeping open or opening the at least one front wheel inlet valve.

Abstract: A method for operating a braking system includes: limiting a brake pressure buildup in a brake circuit of the braking system to a response pressure of a storage volume of the brake circuit by controlling a first wheel outlet valve of a first wheel brake cylinder of the brake circuit into an opened state at least temporarily during an increasing activation intensity of an activation of a brake actuating element connected to a master break cylinder; providing an additional reduction of a brake pressure in the brake circuit to below the response pressure during a constant activation intensity by controlling the first wheel outlet valve into a closed state; and activating a brake booster in such a way that an internal pressure present in the master brake cylinder is reduced with the aid of the activated brake booster.

Abstract: A method for operating a brake system for a vehicle, the brake system including a master brake cylinder coupled to an electromechanical brake booster having a booster body. The method involves: From an initial position, displacing the booster body relative to the master brake cylinder by an adjusting travel in the direction towards the master brake cylinder into an end position; from the end position, displacing the booster body relative to the master brake cylinder by the same adjusting travel in an opposite direction away from the master brake cylinder back into the initial position; during the step of displacing the booster body from the end position back into the initial position, sucking hydraulic fluid from wheel brake devices that coupled in a fluid manner with the brake system and assigned to wheels of the vehicle, for the reduction of a hydraulic fluid pressure existing in the wheel brake devices.

Abstract: A brake device for a vehicle, that includes at least a first hydraulic brake and a second hydraulic brake which produce hydraulic brake forces, and a regenerative brake which produces a regenerative brake force, and that performs a distribution of the hydraulic brake force and the regenerative brake force with respect to a driver request brake force.

Abstract: A method for operating a braking system includes: limiting a brake pressure buildup in a brake circuit of the braking system to a response pressure of a storage volume of the brake circuit by controlling a first wheel outlet valve of a first wheel brake cylinder of the brake circuit into an opened state at least temporarily during an increasing activation intensity of an activation of a brake actuating element connected to a master break cylinder; providing an additional reduction of a brake pressure in the brake circuit to below the response pressure during a constant activation intensity by controlling the first wheel outlet valve into a closed state; and activating a brake booster in such a way that an internal pressure present in the master brake cylinder is reduced with the aid of the activated brake booster.

Abstract: A brake device for a vehicle, that includes at least a first hydraulic brake and a second hydraulic brake which produce hydraulic brake forces, and a regenerative brake which produces a regenerative brake force, and that performs a distribution of the hydraulic brake force and the regenerative brake force with respect to a driver request brake force.

Abstract: A method for operating a brake system for a vehicle, the brake system including a master brake cylinder coupled to an electromechanical brake booster having a booster body. The method involves: From an initial position, displacing the booster body relative to the master brake cylinder by an adjusting travel in the direction towards the master brake cylinder into an end position; from the end position, displacing the booster body relative to the master brake cylinder by the same adjusting travel in an opposite direction away from the master brake cylinder back into the initial position; during the step of displacing the booster body from the end position back into the initial position, sucking hydraulic fluid from wheel brake devices that coupled in a fluid manner with the brake system and assigned to wheels of the vehicle, for the reduction of a hydraulic fluid pressure existing in the wheel brake devices.