A power-operated hydraulic brake system for a wheeled vehicle includes a main brake line; a brake valve configured to input a target brake pressure into the main brake line, the brake vale configured to be actuated via a brake pedal; a plurality of wheel brake lines branching off from the brake valve, each of which leads to an actuating unit of a wheel brake; and a valve assembly of an ABS control system. The valve assembly includes an inlet valve arranged between the main brake line and one of the wheel brake lines, and an outlet valve arranged between the relevant wheel brake line and an unpressurized return line. The inlet valve and the outlet valve are pressure-controlled 2/2-way switching valves with correspondingly large switching cross sections, and the inlet valve and the outlet valve are each assigned at least one pilot valve designed as a solenoid switching valve.

A vehicle brake system includes a first main cylinder with a first main cylinder connection and a first actuating device with a first actuating connection. The first main cylinder connection is in flow-connection to the first actuating connection, and the first actuating device is operable with the first main cylinder. A first brake circuit is provided between a pump and a first wheel cylinder, where the pump in the first brake circuit is operable to generate pressure and move a fluid within the first brake circuit. A first valve device is provided in the first brake circuit where the first valve device is movable between a first configuration in which a flow connection is produced between the pump and the first wheel cylinder, and a second configuration in which a flow connection between the pump and the first wheel cylinder is prevented.

An electronically pressure-controllable vehicle braking system and a method for controlling an electronically pressure-controllable vehicle braking system are described. Such vehicle braking systems may stabilize a vehicle, assist the actuation of the vehicle braking system, and/or enable a fully automated or semi-automated driving operation. For this purpose, the vehicle braking systems include a primary actuator system which sets or regulates different braking pressures at the wheel brakes and furthermore includes an electronically controllable secondary actuator system which protects the vehicle braking system against, inter alia, failure of the primary actuator system. According to the invention, in the event of a fault in the primary actuator system, an activation of the secondary actuator system takes place in such a way that the secondary actuator system generates a braking pressure which, taking into account the dynamic axle load displacement in the direction of the front axle taking place during a braking operation, is greater than the braking pressure convertible into a braking power by the wheel brakes on the rear axle. A provided unit reduces this braking pressure at the at least one wheel brake of the rear axle to a value at which the wheel of the motor vehicle assigned to the at least one wheel brake of the rear axle does not lock.

A method for operating a motor vehicle brake installation. An electrically controllable pressure modulation device having a pump-valve arrangement is hydraulically arranged between the primary brake system and the front axle brakes. The pump-valve arrangement includes, for each front brake, a first valve, arranged between the inlet valve of the primary brake system and the brake, and an electrically activatable pump, with a suction and pressures ports. The pressure port is connected to the brake. In the presence of a predetermined condition of the primary brake system and of an actuation of the master brake cylinder by the driver, a build-up of brake pressure at the front axle brakes is performed by the pump-valve arrangement. The pressure set by the pump-valve arrangement is higher than the brake pressure in the master brake cylinder, whereas the brake pressure of the master brake cylinder prevails at the brakes of the rear axle.

A vehicle includes a drivetrain and multiple motors. The drivetrain includes at least one wheel, and is mechanically connected to the motors. The vehicle additionally includes multiple control modules communicatively connected to the motors. The control modules include a power control module per motor. Each power control module is assigned a motor, communicatively connected to the assigned motor, and configured to operate the assigned motor. In response to a traction event, the control modules are configured to switch from a drive mode to a traction control mode. In the drive mode, the power control modules are configured to operate the respective assigned motors to contributorily satisfy at least one propulsion demand global to the vehicle. In the traction control mode, one of the control modules is configured to operate the motors to contributorily satisfy at least one propulsion demand global to the vehicle.

An automatic brake assist device for an electric two-wheeled vehicle, the electric two-wheeled vehicle includes a main control module, having: a radar sensor module, used to measure a distance from a pair of objects; a control module, connected to the radar sensor module and the main control module, when the distance is changed from greater than a first braking distance to less than the first braking distance, transmitting a first brake braking mode signal to the main control module to decelerate the electric two-wheeled vehicle; when the distance is changed from greater than a second braking distance to less than the second braking distance, transmitting a second brake braking mode signal to the main control module to decelerate the electric two-wheeled vehicle; when the distance is changed from greater than a third braking distance to less than the third braking distance, transmitting a third brake braking mode signal to the main control module to decelerate the electric two-wheeled vehicle.

Provided is a braking device capable of increasing boost responsiveness of wheel cylinders. The braking device includes a second chamber from which a brake fluid is discharged by a movement of a piston caused by inflow of the brake fluid flowed out from a master cylinder to a first chamber through a brake operation by a driver, and a pump configured to discharge the brake fluid into an oil passage for supplying the brake fluid flowed out from the second chamber to a wheel cylinder.

An electromechanical actuator for use in a hydraulic braking circuit of a vehicle comprises an electric motor having a stator and a rotor, and a linear actuator that is located within the motor. The linear actuator comprises an elongate shaft having a screw part at one end carrying an external thread that extends along a portion of the shaft, and a fixing part at the other end shaft, the linear actuator further comprising a drive nut that surrounds the screw part of the shaft and is located at least in a retracted position inside an enlarged bore of the first portion of the rotor body, the drive nut being connected to the screw part through a set of balls that engage the threads of the drive nut and screw part, and the fixing part of the shaft includes a tapering portion that engages a complimentary tapering portion of the bore in the second portion of the rotor body.

A braking system is described for a vehicle, including a master brake cylinder, a first brake circuit with a first storage chamber, a first wheel brake cylinder, and a second wheel brake cylinder, the first wheel brake cylinder being hydraulically connected to the first storage chamber via a first wheel outlet valve, and the second wheel brake cylinder being hydraulically connected to the first storage chamber via a second wheel outlet valve, and including a second brake circuit with a second storage chamber, a third wheel brake cylinder, and a fourth wheel brake cylinder, the third wheel brake cylinder being hydraulically connected to the second storage chamber via a third wheel outlet valve, and the fourth wheel brake cylinder being hydraulically connected to the second storage chamber via a fourth wheel outlet valve. The first wheel outlet valve and the third wheel outlet valve are in each case continuously adjustable valves. Moreover, also described is a method for operating a braking system of a vehicle.

A diaphragm valve (DV), includes: an elastomer-diaphragm (ED) in/on a valve-housing via a radially-outer-edge-bead and interacts with a DV-seat (DVS); a first-control-chamber (CC), delimited by a first-surface, facing away from the DVS, of the ED and loadable and relieved of load by a pressure-medium (PM), and when the first-CC is loaded, the ED is pushed against the DVS; a second-CC, delimited by a second-surface, facing away from the first-surface, of the ED and loadable and relieved of load and surrounds the DVS, and, when the second-CC is loaded by PM, the ED lifts off from the DVS and the second-CC is connected to a PM-flow-channel (FC), on which the DVS is formed at an end-side; and the PM-FC, DVS, ED are coaxial as to an axial-direction, and the smallest thickness of the ED's central-region, as to a radial-direction perpendicular to the axial-direction, is at least 30% of the PM-FC's inner-diameter.