Hydraulic Vehicle Braking System with Electromechanical Actuator, and Method for Operating Such a Hydraulic Vehicle Braking System

Vehicle braking system according to one of the preceding claims, the electromechanical actuator (158) having at least one electric motor (194) with a rotor (206) extending concentrically with respect to the mechanical actuator (162).

Vehicle braking system according to one of the preceding claims, further comprising:

• a decoupling device (182) for selectively decoupling the brake pedal from the piston (140) of the master cylinder (136);
• and
• a simulation device (132) for providing a pedal reaction behaviour when the brake pedal is decoupled from the piston (140).

Vehicle braking system according to one of the preceding claims, further comprising:

• at least one low-pressure accumulator (312), which is couplable to the wheel brake (116) via the second valve (308) assigned to each wheel brake (116), in order to receive hydraulic fluid discharged in the context of a brake pressure reduction.

Vehicle braking system according to one of the preceding claims, further comprising:

• an electrically operated hydraulic pressure generator (316;
• 320) provided in addition to the master cylinder (136), the hydraulic pressure generator (316;
• 320) being drivable in a brake control mode which is different from the brake force boosting or brake force generation upon an actuation of the brake pedal.

Method for operating a hydraulic vehicle braking system (100;

• 400;
• 500) having a master cylinder (136) having at least one piston (140) displaceably accommodated therein, a mechanical actuator (162), coupled or couplable to a brake pedal, for actuating the piston (140), an electromechanical actuator (158) for actuating the piston, and a first valve arrangement (300), which per wheel brake (116) has a first valve (304) for selectively uncoupling the wheel brake (116) from the master cylinder (140) and a second valve (308) for selectively reducing the brake pressure at the wheel brake (116), the electromechanical actuator (158) being driven at least for brake force boosting or brake force generation upon an actuation of the brake pedal, and the first valve arrangement (300) being driven at least in the context of an ABS control mode.