A sensor arrangement for a braking system of a vehicle is disclosed comprising a connection interface, a control unit, and a sensor. The sensor has an external interface with electrical contacts via which the sensor is connected to the control unit. The control unit is connected to and supplied with power via the connection interface and exchanges data with a higher-level unit via the connection interface. The sensor is provided power via the electrical contact points and provides electrical output signals via the electrical contact points. A first contact point provides a first electrical output signal and is connected to the connection interface via a first switching element such that the first contact point is connected to the connection interface when the first switching element is in the deenergized state and is disconnected from the connection interface when the first switching element is in the energized state.

A sensor arrangement for a braking system of a vehicle is disclosed comprising a connection interface, a control unit, and a sensor. The sensor has an external interface with electrical contacts via which the sensor is connected to the control unit. The control unit is connected to and supplied with power via the connection interface and exchanges data with a higher-level unit via the connection interface. The sensor is provided power via the electrical contact points and provides electrical output signals via the electrical contact points. A first contact point provides a first electrical output signal and is connected to the connection interface via a first switching element such that the first contact point is connected to the connection interface when the first switching element is in the deenergized state and is disconnected from the connection interface when the first switching element is in the energized state.

A method and system for monitoring operation of a brake control circuit periodically verifies that redundant output control channels transition between ON and OFF states. A controller generates separate brake release signals for each of the redundant output control channels. The brake release signals are combined to form a brake command signal used to control operation of the brake coil. An input channel on the controller receives a signal corresponding to the current state of the brake command signal to monitor brake operation. The controller periodically modulates the brake release signals on each channel between an ON and an OFF state. The modulation is observed on the brake command signal to verify that each output channel is able to change state. The modulation occurs at a frequency greater than a response frequency of the brake coil such that the brake coil remains energized during modulation of each output channel.

An actuation unit includes an actuating arm pivotable between an open and closed position; a pneumatic cylinder comprising a stem movable linearly along a cylinder axis and configured to control pivoting of the actuating arm; and a closing device that includes a braking unit configured to brake movement of the actuating arm having a surface portion configured to come into contact with at least one braking assembly. The braking assembly is locked against rotation and axially movable between a non-braking and braking configuration. The surface portion is in a non-orthogonal arrangement with respect to the cylinder axis and the braking assembly includes a plurality of rollers retained in the braking assembly with clearance at least with respect to a radial movement thereof, the rollers being able to assume a first radial configuration not in contact with the surface portion and a second radial configuration in contact with the surface portion.

An actuation unit includes an actuating arm pivotable between an open and closed position; a pneumatic cylinder comprising a stem movable linearly along a cylinder axis and configured to control pivoting of the actuating arm; and a closing device that includes a braking unit configured to brake movement of the actuating arm having a surface portion configured to come into contact with at least one braking assembly. The braking assembly is locked against rotation and axially movable between a non-braking and braking configuration. The surface portion is in a non-orthogonal arrangement with respect to the cylinder axis and the braking assembly includes a plurality of rollers retained in the braking assembly with clearance at least with respect to a radial movement thereof, the rollers being able to assume a first radial configuration not in contact with the surface portion and a second radial configuration in contact with the surface portion.

A variable air hole covering flap device is provided and selectively opens or closes an air hole formed in a wheel deflector or a wheel cover to allow air to be introduced toward a brake. The air hole is opened only when brake cooling of a vehicle is more necessary than aerodynamic performance of the vehicle to properly control the aerodynamic performance and the brake cooling performance of the vehicle as necessary.

A variable air hole covering flap device is provided and selectively opens or closes an air hole formed in a wheel deflector or a wheel cover to allow air to be introduced toward a brake. The air hole is opened only when brake cooling of a vehicle is more necessary than aerodynamic performance of the vehicle to properly control the aerodynamic performance and the brake cooling performance of the vehicle as necessary.

A pole wheel is provided. The pole wheel can be mounted on a brake disk of a vehicle wheel brake. The pole wheel has apertures which are uniformly distributed over its circumference and which are spaced apart from one another by radial webs. The pole wheel has an axially protruding bulge radially above its apertures and radial webs.

A pole wheel is provided. The pole wheel can be mounted on a brake disk of a vehicle wheel brake. The pole wheel has apertures which are uniformly distributed over its circumference and which are spaced apart from one another by radial webs. The pole wheel has an axially protruding bulge radially above its apertures and radial webs.

The brake driving control circuit, which controls an electromagnetic brake that releases the brake by applying a current, is provided with: a first rectifying element provided between a first power supply of a first circuit voltage and one terminal of the electromagnetic brake; a cut-off switch inserted into a line through which the first power supply supplies power; a first switching element provided between the other terminal of the electromagnetic brake and a ground point; and a second switching element and a second rectifying element provided in series between a second power supply of a second circuit voltage, which is different from the first circuit voltage, and the one terminal of the electromagnetic brake.