An adjustable pressure simulator device for vehicle braking systems of the brake-by-wire type may have an absorber body enclosing a first cylinder and a second cylinder fluidically communicating with each other and at least partially filled with a fluid. The first cylinder houses a first piston subject to the thrust action of the fluid and biased by a first elastic device which opposes the thrust action applied by the fluid. The second cylinder houses a second piston subject to the thrust action of the fluid and biased by a second elastic device which opposes the thrust action applied by the fluid. The first and the second elastic devices have different rigidities so as to induce the displacement of the second piston only after having reached a predetermined stroke of the first piston, under the thrust action of said fluid.

A pneumatic brake pedal module for a brake-by-wire brake system of a vehicle is disclosed. The brake pedal module includes a pivotably mounted brake pedal and a damping unit. The damping unit is mechanically coupled to the brake pedal to generate a resistance when the brake pedal is actuated. The damping unit comprises a housing and a piston, which is mounted movably in the housing and divides an internal space of the housing into a pressure chamber and a vacuum chamber. The pressure chamber and the vacuum chamber are connected to one another in terms of flow. The piston has on its running surface an encircling annular space in which a ring seal is accommodated in an axially movable manner. The ring seal is located at least in a flow path between the pressure chamber and the vacuum chamber and forms a restrictor in the at least one flow path, which restrictor frees different flow cross sections in the at least one flow path depending on the axial direction of movement, and damps the movement of the piston with differing degrees of strength depending on a direction of movement of the piston.

A brake pedal module for a “brake-by-wire” brake system of a vehicle is disclosed. The brake pedal module has a carrier component for securing the brake pedal module on the vehicle, a brake pedal, which is mounted pivotably on the carrier component, and a damping unit, which is mechanically coupled at one end to the brake pedal and at the other end to the carrier component in order to produce a resistance when the brake pedal is actuated. The brake pedal module is a pre-assembled structural unit which is self-contained in terms of forces.

A pedal sensor is provided with a carrier that can be mounted to a motor vehicle. A housing is formed at the carrier, and a pedal arm is mounted on the carrier so as to be pivotable. A mechanism to transmit movements of the pedal arm relative to the carrier is arranged in the housing, and a sensor for measuring the movements is provided. A damping element is fixed to the carrier in a groove in such a way that any contact between the pedal arm and the carrier is dampened. The damping element is securely held on the carrier. This is achieved by the damping element being secured on both sides against slipping out of the groove.

Disclosed is a device for moving a brake pedal. The device for moving a brake pedal according to the present embodiment comprises: a lead screw fixed to an input rod of the brake pedal and having a first screw thread formed on the outer circumferential surface thereof; a first anti-rotation unit that prevents rotation of the lead screw; an actuator that provides power; a rotator rotated by the actuator; and a nut that rotates together with the rotator and is provided to be slidably movable with respect to the rotator, and that has a second screw thread formed on the inner circumferential surface thereof for meshing with the first screw thread.

Disclosed is an apparatus for moving a brake pedal. The apparatus for moving a brake pedal according to the disclosure includes a pedal simulator providing a reaction force according to a pedal effort of the brake pedal and having one side connected to the brake pedal through an input rod, a screw fixed to the other side of the pedal simulator and having a first screw thread formed on an outer circumferential surface thereof, an anti-rotation portion configured to prevent rotation of at least one of the pedal simulator and the screw, and an actuator configured to provide power, wherein the first screw thread is connected to the actuator to receive a rotational force, and the screw converts the rotational force into a translational motion by the anti-rotation portion, thereby generating the translational motion of the pedal simulator and the brake pedal fixed or connected to the screw.

The present disclosure includes: a cylinder; a piston that moves inside the cylinder in response to the operation of a brake pedal; a reactive rubber that is disposed inside the cylinder and that applies a reactive force to the piston by being compressed by the movement of the piston to one side; and a plug that is disposed inside the cylinder so as to surround an outer circumferential surface of the reactive rubber and that increases a sliding resistance against the movement of the reactive rubber to one side as the reactive rubber is compressed.

The present invention comprises: a piston provided in a cylinder hole; a lid member which closes an opening on the other side of the cylinder hole; and elastic members and which are provided between the piston and the lid member. The elastic members and comprise a first elastic member provided on the piston side of the cylinder hole, and a second elastic member provided on the lid member side of the cylinder hole. The second elastic member has a base portion provided in line with the first elastic member, and a protruding portion protruding from the piston side end surface of the base portion. When the piston has moved in the axial direction to the lid member side, the protruding portion touches the piston, undergoing compressive deformation, and the base portion subsequently undergoes compressive deformation.

A pedal feel emulator comprises a housing extending along a center axis between a closed end and an opened end and defining a chamber extending therebetween. A first piston is slidably disposed in the chamber. The first piston defines a compartment in fluid communication with the chamber. A second piston is slidably disposed in the compartment. A spring seat extends radially outwardly from the second piston. A first elastic member is located in the chamber extending between the spring seat and the closed end. A second elastic member is located in the compartment and extending between the spring seat and the first piston. A third elastic member is located between the second piston and the first piston. A brake system including the pedal feel emulator is also disclosed herein.

A simulator valve includes a housing having a pedal simulator passage and a master cylinder passage extending therethrough. The master cylinder passage is located longitudinally between the first housing surface and the pedal simulator passage. An armature is located at least partially within the housing for selective longitudinally reciprocating motion with respect thereto between first and second armature positions. A poppet is located within the housing for selective longitudinally reciprocating motion with respect thereto between first and second poppet positions. The poppet defines a first valve and a second valve the poppet includes a poppet bore extending longitudinally therethrough and selectively occluded by the first valve. A damped flow fluid path selectively permits fluid communication therethrough from the master cylinder passage to the pedal simulator passage. A free flow fluid path selectively permits fluid communication therethrough from the pedal simulator passage to the master cylinder passage.