A multi-disc brake is provided. The brake can include a radial wear pin cartridge for wear indication. The brake can include an integrated water jacket for cooling.

A brake device of the present invention includes: a wheel brake unit for braking a wheel; an electric motor for driving the wheel brake unit; a speed reducer for decelerating rotation of the electric motor; a rotation-linear motion converter for converting a rotational output of the speed reducer into a linear motion; and a braking force transmission member for transmitting the linear motion produced by the rotation-linear motion converter to the wheel brake unit.

The force sensing device (1) comprising: a sheet (2) of piezoelectric; at least a first and a second interdigitated electrodes (5, 50) located on a first main face (3) and at least a third and fourth interdigitated electrodes (6, 60) located on a second main face (4) of the sheet (2), the first and third electrodes (5, 6) being aligned to each other along a normal stress direction (N), the second and fourth electrodes (50, 60) being aligned to each other along the normal stress direction (N); the piezoelectric material comprising first portions (100) facing the first and third electrodes (5, 6) interposed with second portions (101) facing the second and fourth electrodes (50, 60), the first portions (100) having bulk electric polarization with vector field (E) mostly oriented in alignment with the normal stress direction (N), the second portions (101) having bulk electric polarization with vector field (E) mostly oriented transversally to the normal stress direction (N).

A brake element is sensorized by at least one piezoceramic sensor arranged between a metallic support element and a block of friction material of a brake element, the sensor being completely embedded within the block. An electrical voltage signal generated by at least one piezoceramic sensor, without the need for a power supply, is picked up by an electrical circuit integrated into the metallic support element. The electrical voltage signal is processed in the form of equal length of samples per unit of time of the detected signal by successively processing in real time each sample of equal length of time sample of the signal by applying an algorithm. The algorithm is selected from at least one of a sequence of integrations of voltage values in the sample carried out in an interval of time in the order of milliseconds; FFT voltage data sample; and integral of the voltage data sample.

A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.

Methods, apparatus, systems, and articles of manufacture to extend brake life cycle are disclosed herein. An example vehicle disclosed herein includes a brake including a rotor and a brake pad and a brake controller to detect a request to determine a wear level of the brake pad, activate the brake to cause contact between the brake pad and the rotor, and determine, based on a latency between the activation of the brake and the contact between the brake pad and the rotor, the wear level.

An electromagnetically actuable brake device includes: a coil shell, in particular of the solenoid, an armature disk, which is connected to the coil shell in a torque-proof yet displaceable manner, a sensor having a sensor housing, a spring part, and a screwed cable gland. The coil shell has a stepped through bore, the sensor housing of the sensor has a stepped configuration, the screwed cable gland is situated at an end of the bore, in particular is screwed into a threaded section of the bore, the spring part is situated in the bore between the screwed cable gland and the sensor housing, the spring part is braced on a step of the sensor housing on one side and on the screwed cable gland on the other, and the sensor housing is pressed against a step of the bore, in particular by the spring part.

A vehicle includes a system and a method of monitoring a condition of a brake fluid. The system includes a first sensor configured to measure a fluid level of the brake fluid within a reservoir, a second sensor configured to measure a concentration of the brake fluid, a third sensor configured to measure a temperature of the brake fluid, and a processor. The processor is configured to estimate the condition of the brake fluid from the fluid level, the concentration and the temperature and send a signal to a display, the signal indicative of the condition of the brake fluid.

A vehicle includes a system and a method of monitoring a condition of a brake fluid. The system includes a first sensor configured to measure a fluid level of the brake fluid within a reservoir, a second sensor configured to measure a concentration of the brake fluid, a third sensor configured to measure a temperature of the brake fluid, and a processor. The processor is configured to estimate the condition of the brake fluid from the fluid level, the concentration and the temperature and send a signal to a display, the signal indicative of the condition of the brake fluid.

An indicator for monitoring temperature and wear of one or more aircraft brakes. One or more sensors are provided for sensing a parameter of usage, and an estimate of usage of the part can be determined based upon the signal indicating the sensed value of the parameter of usage of the aircraft part. A plurality of sensors can be provided for sensing usage of a plurality of parts of the aircraft, and the estimate of usage of the part can be stored for access of the estimate by ground personnel. In addition, the sensed usage data are critical inputs for the brake controller to regulate which brakes are applied.