An electromechanical brake pressure generator for a hydraulic brake system of a vehicle. The electromechanical brake pressure generator includes a screw drive system for converting a drive-side rotary movement into a translation movement to generate brake pressure. The screw drive system includes a spindle which is rotatable via an electric motor, a spindle nut, which interacts with a thread of the spindle so that the spindle nut is axially displaceable by a rotation of the spindle, and a drive wheel, which is situated coaxially on the spindle in a torsionally fixed manner and via which the spindle is connected to the electric motor. The drive wheel is developed from at least two different materials. A first material forms at least a wheel hub of the drive wheel. A second material forms at least a drive ring enclosing the wheel hub. The first material has greater strength than the second material.

The disclosure relates to a control device and a corresponding method for operating an electromechanical brake booster of a brake system of a vehicle, comprising an electronics unit that defines a target variable with respect to a target rotational speed of a motor of the electromechanical brake booster, taking into account a brake input signal with respect to a braking request, and that sends at least one control signal to the motor. The electronics unit defines a maximum target variable with respect to a maximum target rotational speed of the motor, taking into account a current intensity of a motor current of the motor and a current angle of rotation of a rotor of the motor, and defines the target variable with respect to the target rotational speed of the motor of the electromechanical brake booster to be at the most equal to the defined maximum target variable.

A control device, when performing a reallocation control, makes the decrease gradient of regeneration braking force in a first period in which the amount of decrease in a basal fluid pressure from a reference basal fluid pressure is less than a specified amount of decrease greater than the decrease gradient of the regeneration braking force in a second period in which the amount of decrease in the basal fluid pressure is not less than the specified amount of decrease.

A vehicle brake device includes a hydraulic pressure generating device, a valve device, a pump and an accumulation section forming an accumulation chamber connected to a fluid passage between the valve device and the hydraulic pressure generating device or to a master chamber. A dead band is set in which the change of force of the magnitude corresponding to the hydraulic pressure in the master chamber does not substantially act on a brake operating member. A characteristic representing the relation between the pressure and the brake fluid quantity in the accumulation chamber is set based on a characteristic representing the relation between the pressure and the brake fluid quantity in a wheel cylinder and the dead band so that, when brake fluid is flowing into and from the accumulation chamber, a force of the magnitude corresponding to the master chamber hydraulic pressure does not act on the brake operating member.

A brake apparatus activates a stroke simulator OUT valve in a valve-closing direction to increase a pressure in a wheel cylinder with use of brake fluid flowing out of the stroke simulator according to a state of an operation performed by a driver on a brake pedal. Further, when the hydraulic pressure in the wheel cylinder or a first oil passage is brought into a predetermined state, the brake apparatus activates the stroke simulator OUT valve in a valve-opening direction to cause the brake fluid in the stroke simulator to flow out to a low-pressure portion while restricting the brake fluid in the stroke simulator to a predetermined flow amount.

A brake unit (1) includes: a master cylinder (2) unit which is fixed to a vehicle body, and which includes a master cylinder (2b) that is received within a first housing (20), and that is arranged to be interlocked with a brake pedal; and a pump unit (3) which is arranged to be driven by a motor (3), and which includes a second housing (30) within which a pump arranged to increase a wheel cylinder pressure is received, the master cylinder unit (2) and the pump unit (3) being integrally fixed through a mount (6) which is an elastic member.

The present disclosure in at least one embodiment provides an electromechanical braking apparatus including a rod configured to translate in response to a depression of a brake pedal, a master cylinder configured to receive brake oil and to be responsive to insertion of the rod for discharging the brake oil, a motor, and a gear mechanism having at least some part connected to the master cylinder and at least some other part connected to the motor, wherein the gear mechanism including an upper housing configured to receive at least some portion of a plurality of gears, and a lower housing coupled to the upper housing and configured to receive at least some other portion of the plurality of gears.

A brake actuating element coupling device. The coupling device includes a first input rod component which can be adjusted using a driver braking force out of its first starting position in a braking direction with respect to a brake master cylinder, a second input rod component, and a locking mechanism. The second input rod component is fastened via the locking mechanism, present in its locking functional mode, to the first input rod component in such a way that the second input rod component is also adjustable in the braking direction and the driver braking force can be transmitted to at least one adjustable piston of the brake master cylinder. If the locking mechanism is present in its non-locking functional mode, the second input rod component is adjustable relative to the first input rod component in the braking direction.

The invention relates to a towing vehicle (100) for maneuvering aeroplanes without using tow bars, comprising a braking device (130) having a first fluidically actuable braking circuit (148) which acts on the front wheels (106) and a second fluidically actuable braking circuit (150) which acts on the rear wheels (110). According to the invention, the braking device (130) further comprises a third fluidically actuable braking circuit (152), which likewise acts on the front wheels (106).

A pneumatic brake booster having a booster housing. The booster housing has at least two thin-walled shell elements and an elastomer sealing element. The sealing element has a sealing bead, which is of encircling form radially at the outside, and at least one rolling diaphragm portion which adjoins the sealing bead. The sealing bead is sealingly clamped in a clamping space between the shell elements. The clamping space is formed by walls which are generated in the shell elements by deformation, its radial inner wall formed by a tubular, axially forwardly extending projection, which is folded at its front edge, of the second shell element. It is proposed that a bead-side rear wall of the clamping space is formed by an encircling, radially outwardly projecting collar which is formed on the second shell element.