A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.

A cable-coupled by-wire control of a vehicle control function traditionally activated by driver manipulation of a pedal is achieved though the agency of a Bowden cable having a first end fastened to the driver pedal, and a second end coupled to a by-wire actuator. The by-wire actuator has a pulley on which the second end of the cable is fastened, an electric motor coupled to the pulley to permit by-wire activation of the vehicle control function by rotation of the pulley in a direction to pull on the pedal with the cable. A relief chamber of the actuator radially outboard of the pulley accommodates slack in the cable within the actuator caused by driver manipulation of the pedal during by-wire activation of the control function.

A vehicle brake pedal including a base and a pedal arm coupled to and rotatable relative to the base. A linear pedal resistance assembly extends between the base and the pedal arm and is adapted for exerting a resistance force against the pedal arm in response to the rotation of the pedal arm. A rotary pedal dampener assembly is associated with the base and adapted for exerting a dampening force against the pedal arm in response to the rotation of the pedal arm. A rotary pedal position sensor assembly is associated with the base and adapted for sensing the position of the pedal arm in response to the rotation of the pedal arm. In one embodiment, the linear pedal resistance assembly includes a housing with a plurality of springs adapted for compression in response to the rotation of the pedal arm and for exerting the resistance force against the pedal arm.

A system includes a helper piston that includes an axial sleeve that is integral with a guide bracket and that has a threaded exterior surface; a translationally fixed but rotational translation nut that has internal threads that complement those of the helper piston and that supports a gear connected to a drive motor; a plunger piston pushed by the helper piston and connected to a control rod; a trigger spring between the helper piston and the stop carried by the control rod for triggering brake assistance; a stop including a stop sleeve and a flange that is applied to the trigger spring, where the body of the control rod has a crimping area for securing the stop by crimping in an adjusted compression position.

A system includes a helper piston that includes an axial sleeve that is integral with a guide bracket and that has a threaded exterior surface; a translationally fixed but rotational translation nut that has internal threads that complement those of the helper piston and that supports a gear connected to a drive motor; a plunger piston pushed by the helper piston and connected to a control rod; a trigger spring between the helper piston and the stop carried by the control rod for triggering brake assistance; a stop including a stop sleeve and a flange that is applied to the trigger spring, where the body of the control rod has a crimping area for securing the stop by crimping in an adjusted compression position.

For fastening an mounting part to a hydraulic block of a hydraulic power unit of a hydraulic power vehicle braking system, holes are configured in a fastening flange of the mounting part with collars, which are clampingly inserted in mounting holes of the hydraulic block. A perforated disk is situated on the fastening flange as a fastening part and is fastened by screws screwed into the mounting holes of the hydraulic block.

An actuation device for a brake system. The actuation device includes an electric motor which is designed to drive a drive shaft mounted rotatably about an axis of rotation, a housing, and a main brake cylinder which is rigidly connected to the housing, wherein at least one hydraulic piston is displaceably mounted in the main brake cylinder. The drive shaft is coupled to the hydraulic piston such that the hydraulic piston can be displaced by rotation of the drive shaft. The electric motor is arranged in the housing. The rigid connection of the main brake cylinder to the housing is provided at least in part by the drive shaft.

An actuation device for a brake system. The actuation device includes an electric motor which is designed to drive a drive shaft mounted rotatably about an axis of rotation, a housing, and a main brake cylinder which is rigidly connected to the housing, wherein at least one hydraulic piston is displaceably mounted in the main brake cylinder. The drive shaft is coupled to the hydraulic piston such that the hydraulic piston can be displaced by rotation of the drive shaft. The electric motor is arranged in the housing. The rigid connection of the main brake cylinder to the housing is provided at least in part by the drive shaft.

A dissymmetric braking system has at least one right wheel braking device, at least one left wheel braking device, at least one device to apply a braking action, at least one actuating device to transform the braking action into a first pressure, at least one right wheel connection, at least one left wheel connection, and at least one pressure reducing device having at least one transfer device receiving the first pressure. The transfer device transforms the first pressure into a reduced second pressure, whereby avoiding, during the braking action, a fluidic connection between a fluid having the first pressure and a fluid having the second pressure to determine, during the braking action, a relationship between the first pressure and the second pressure with linear trend without variation of linearity throughout the operating field of the pressure reducing device, so that the braking action of one of the right wheel braking device and left wheel braking device is lower than the other.

A stoke simulator operable by an operation of a brake operation member that is operated by a driver, including: a housing: a movable member held by the housing so as to be movable relative to the housing, the movable member being connected to the brake operation member; a volume change chamber disposed forward of the movable member in the housing; and a plurality of elastic members disposed in the volume change chamber and capable of generating an elastic force in accordance with a movement of the movable member, at least one of the plurality of elastic members being a rubber-like member.