A control device and a method for operating a hydraulic braking system of a vehicle, a volume supplementation in a motorized plunger device being effectuatable by moving a plunger of the motorized plunger device at a maximum movement speed by a maximum movement travel in a pressure reduction direction, at least one setpoint variable regarding the maximum movement speed and/or the maximum movement travel of the plunger during the subsequent volume supplementation being established, before the volume supplementation, with consideration of at least one provided variable regarding current driving situation information and/or surroundings information, and the motor of the motorized plunger device is activated during the subsequent volume supplementation with consideration of the at least one established setpoint variable.

In order to provide a hydraulic actuating system for actuating a parking lock of a motor vehicle, which hydraulic actuating system manages with as few components as possible which are simple, robust, relatively insusceptible to faults and inexpensive, with a simultaneously low installation space requirement, and the hydraulic layout of which hydraulic actuating system makes a simple actuation and a simple movement possible for locking and unlocking the parking lock, it is provided that a pumping device which can operate bidirectionally with a locking delivery direction and with a releasing delivery direction is used as pumping device, and check valves are arranged in the hydraulic circuit in such a way that, by way of actuation of the pumping device in the locking delivery direction, the parking lock moves into the locked position and, upon actuation of the pumping device in the releasing delivery direction, the parking lock moves into the released position.

A brake apparatus includes a first processor configured to output a first control signal based on an output signal of a parking switch, a second processor, a first parking brake driver configured to drive a first parking brake motor and a second parking brake motor based on the first control signal, and a second parking brake driver. The first processor transmits a first periodic signal to the parking switch during a normal operation of the first processor. The parking switch transmits a second periodic signal to the second processor in response to the first periodic signal received from the first processor. The second processor does not output the second control signal in response to the second periodic signal, and outputs a second control signal in response to not receiving the second periodic signal. The second parking brake driver drives the second parking brake motor based on the second control signal.

A brake actuating device for a motor vehicle brake system comprising a hydraulic unit has a side face, on which an electric motor is arranged. The electric motor drives a pressure generator, located in the hydraulic unit, for conveying a hydraulic fluid. The hydraulic unit comprises a first plurality of location openings in the side face. An adapter unit having a first connecting surface is arranged on the side face of the hydraulic unit. The adapter unit comprises a second plurality of location openings in the first connecting surface, wherein each of the first plurality of the location openings of the hydraulic unit is connected in fluid communication with one of the second plurality of connection openings of the adapter unit. The adapter unit comprises a second connection surface having a plurality of connection openings for fluidically connecting wheel brakes of the motor vehicle brake system.

Disclosed is a brake arrangement for a tracked vehicle comprising a brake housing. Said brake arrangement is journaled in bearings in connection to a drive unit driven drive axle configured to rotate a drive wheel member. Said brake arrangement comprises a set of ring shaped friction elements arranged about said drive axle and configured to be pressed together in the axial direction for providing a braking function. Said brake arrangement further comprises a ring shaped parking brake piston device coaxially arranged around said drive axle in connection to a radially outer portion of said set of friction elements. Said parking brake piston device is configured to provide pressure in the axial direction against said radially outer portion of said set of friction elements based on a parking brake action so as to press said elements together for preventing rotation of said drive axle, preventing movement of drive wheel member.

A brake system may have at least two wheel brake cylinders that are parts of respective wheel circuits, a pressure supply arranged to build up pressure in the wheel brake cylinders, an electronic control and regulation device, and switching valves connecting respective wheel brake cylinders, via respective hydraulic lines, to a further hydraulic main line. The further hydraulic main line may connect the wheel brake cylinders to the pressure supply. Redundancy may be built into the switching valves.

A multi-circuit, hydraulically open brake system includes a first pressure generator assigned to a main system with a first energy supply and a first evaluation and control unit (ECU), and is connectable via a first shut-off valve to wheel brake(s) of a first brake circuit and via a second shut-off valve to wheel brake(s) of a second brake circuit. A second pressure generator is assigned to a secondary system which includes a second energy supply and a second ECU, and is connectable via a third shut-off valve to wheel brake(s) of the first brake circuit and via a fourth shut-off valve to wheel brake(s) of the second brake circuit. The second ECU controls the second pressure generator. Components of the modulation unit for individual brake pressure modulation are assigned to the main system, and the components are controlled by the first ECU and are supplied by the first energy supply.

Braking control systems, such as for an aircraft, use a hydraulic failure isolation valve intermediate an accumulator power source and a dual valve assembly for mechanical operation when a hydraulic power source experiences a disruption.

A radial piston pump comprising a rotor mounted for rotation on a pintle. The rotor comprises a plurality of piston chambers, a piston being mounted in each of said chambers for reciprocal movement. The pump comprises a supply flow path which connects the piston chambers to a supply of low-pressure fluid, an exit flow path via which high-pressure fluid from the piston chambers leaves the pump, and an auxiliary flow path which connects another component of the pump to the piston chambers. The pintle comprises a plurality of flow galleries comprising a supply flow gallery forming part of the supply flow path, an exit flow gallery forming part of the exit flow path, and an auxiliary flow gallery forming part of the auxiliary flow path. The radial piston pump uses the pintle as a fluid manifold providing fluid to or from the pistons.

A method for operating a hydraulic brake system for a motor vehicle that includes a hydraulic brake system with a hydraulic unit, a brake fluid reservoir and hydraulically actuatable wheel brakes, wherein the hydraulic unit has a main pressure source which can be actuated via a brake pedal, an additional pressure source fluidically separate from the main pressure source, and control valves by which the main pressure source and the additional pressure source on one side and the wheel brakes on the other side are connected together, wherein in the brake fluid reservoir, multiple at least partially mutually separate reservoir chambers are provided for supplying the main pressure source and the additional pressure source with a brake fluid, wherein the method comprises detection of a fill level of the brake fluid in the brake fluid reservoir by a measurement assembly, wherein the detection of the fill level takes place in analog fashion.