An actuator assembly for an integrated dynamic brake apparatus according to an embodiment of the present invention includes a hollow motor having a stator and a rotor spaced apart from an inner circumferential surface of the stator; a block having one side coupled to one side of the motor and in which chamber that accommodates fluid is formed; a gear unit having one side coupled and fixed to the rotor to convert rotational movement of the rotor to linear movement; a piston configured to receive the converted linear movement from the gear unit to linearly reciprocate; and an electronic control unit coupled to the other side of the block and comprising a motor position sensor configured to detect a position of the motor.

A method for monitoring an electric motor of a hydraulic brake system for a motor vehicle, wherein a first torque and a second torque are calculated and compared with one another. A fault can be detected on the basis of the comparison. The invention also relates to an associated electronic control module, to an associated hydraulic brake system and to an associated non-volatile computer-readable storage medium.

A brake system may include an actuation device, in particular a brake pedal; a first piston-cylinder unit with two pistons, in particular an auxiliary piston and a second piston, in order to supply brake circuits with a pressure medium via a valve device, wherein one of the pistons, in particular the auxiliary piston, can be actuated by means of the actuation device; a second piston-cylinder unit comprising an electric motor-powered drive, a transmission, and at least one piston in order to supply pressure medium to at least one of the brake circuits via a valve device; and a motor pump unit with a valve device in order to supply pressure medium to the brake circuits. The brake system may further include a hydraulic travel simulator which is connected to a pressure or working chamber of the first piston-cylinder unit.

A brake pedal unit includes a housing defining a bore formed therein. An input piston is slidably disposed in the bore. The input piston is connected to a brake pedal such that engagement of the brake pedal causes movement of the input piston within the bore of the housing of the brake pedal unit. The brake pedal unit is defined to be in an at rest position when the brake pedal in not engaged causing movement of the input piston. A primary piston is slidably disposed in the bore for pressurizing a primary chamber. A primary passageway permits fluid communication between the primary chamber and the reservoir, wherein fluid flow through the primary passageway is blocked when the brake pedal unit is in the rest position. A secondary piston is slidably disposed in the bore for pressurizing a secondary chamber. A secondary passageway permits fluid communication between the secondary chamber and the reservoir, wherein fluid flow through the secondary passageway is blocked when the brake pedal unit is in the rest position.

A hydraulic block for a hydraulic power unit of a hydraulic, slipped-controlled power vehicle braking system. A power piston of an electromechanical power brake pressure generator in a power cylinder borehole of the hydraulic block is guided radially in the power cylinder borehole with the aid of a guide bushing.

According to at least one embodiment, the present disclosure provides an electric hydraulic brake including: a plurality of wheel brakes configured to supply braking force to wheels of a vehicle; a reservoir storing brake oil; a master cylinder connected to the reservoir and configured to generate hydraulic pressure in cooperation with a motor; a hydraulic circuit configured to selectively transmit the hydraulic pressure to the plurality of wheel brakes, the hydraulic circuit including a front wheel hydraulic circuit to transmit the hydraulic pressure to a pair of front wheel brakes, a rear wheel hydraulic circuit to transmit the hydraulic pressure to a pair of rear wheel brakes, and a plurality of solenoid valves; a first controller configured to control the motor and the hydraulic circuit in accordance with braking input; and a second controller configured to control the motor and the front wheel hydraulic circuit when the first controller malfunctions.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

An anti-lock brake apparatus, a vehicle, an electric vehicle and an electric-assisted vehicle. The anti-lock brake apparatus is applied to a brake system, and the brake system is used to provide a brake frictional force for a wheel, the brake system includes a brake oil pipeline, and the anti-lock brake apparatus includes: a volume-adjusting part, the volume-adjusting part has a volume chamber, the volume chamber is connected into the brake oil pipeline, a volume of the volume chamber is continuously adjustable, the volume-adjusting part adjusts the volume of the volume chamber according to a state parameter of the wheel, to enable an oil pressure in the brake oil pipeline to vary, and the brake frictional force exerted on the wheel by the brake system is adjustable. The apparatus has high reliability and high brake efficiency.

A hydraulic brake system includes a brake actuating element, a simulation device with a detector for detecting brake actuation by a driver. No mechanical and/or hydraulic operative connection between the brake actuating element and the wheel brakes is provided. A pressure medium reservoir, an electrically controllable pressure source for actuating the wheel brakes can be connected to each of the wheel brakes, electrically actuable wheel valves assigned to the wheel brakes for setting wheel brake pressures, and at least one electronic control and regulating unit for actuating the pressure source and wheel valves. The pressure source includes at least one piston which is sealed in a housing by a first sealing element and a second sealing element. In the case of a leak of the first sealing element, a pressure build-up is carried out at the wheel brakes by the pressure source with use of the second sealing element.