Apparatuses, systems, and methods apply, with a fan, a braking force to a vehicle that includes an axle. The fan is rotated at a first rotational speed based on a rotation of the axle that rotates at a second rotational speed. The first rotational speed is different from the second rotational speed. The fan applies the braking force when the fan rotates at the first rotational speed.

A method for detecting undesirable vibrations of an actuator of an electromechanical brake includes the steps of: (1) providing an electrical signal comprising at least one piece of information about a current consumption of the actuator or a parameter correlated with the current consumption; (2) monitoring an operation of the actuator on the basis of the gradient of the electrical signal in such a way that after switching on the actuator and preferably after a subsequent delay time, which includes determining: whether the amount of an initial instantaneous value of the gradient exceeds the amount of a threshold and whether a subsequent second instantaneous value of the gradient has an inverted sign compared to the first instantaneous value; (3) evaluating the results to ensure that an undesirable vibration is assessed as detected the aforementioned conditions are met.

An apparatus for removing rust on a brake disk includes: an environment information acquisition unit configured to acquire environment information, a controller configured to perform a function of calculating an amount of generated rust using the environment information, and controlling the rust removal depending on whether or not the amount of generated rust exceeds the preset reference value, and a driver configured to drive a brake system under the control of rust removal.

A method for brake health monitoring may include sending, by a brake control unit (BCU), a brake command signal to initiate a braking maneuver, and receiving a first wheel speed signal and a second wheel speed signal corresponding to the speed of first and second wheels, respectively, during the braking maneuver. The BCU may detect that the speed of the first wheel is greater than the speed of the second wheel by a predetermined threshold, and, in response thereto, post an alert indicating a failure in a brake control component associated with the first wheel based upon the detection of the speed of the first wheel being greater than the speed of the second wheel by the predetermined threshold.

A brake system and a method for controlling a brake system. The brake system may include a first module having a first pressure supply unit with an electromotive drive, an optional second pressure supply unit and a first control device for controlling the first pressure supply unit; a second module having a third pressure supply unit, isolation valves and brake-pressure-adjusting valves, and a second control device for controlling the brake-pressure-adjusting valves; and a detection unit for detecting a first case of error. The brake system is designed such that, in the first case of error, in order to provide an ABS function and/or a yaw torque intervention, it implements a (wheel-specific and/or selective) adjustment of the pressures in the wheel brakes by actuating at least one of the brake-pressure-adjusting valves of the second module and/or the isolation valves of the second module and the first pressure supply unit.

Disclosed are a brake pedal assembly, a braking apparatus, and a control method, where the brake pedal assembly includes a pedal, a stroke sensor configured to detect a depression stroke of the pedal, Hall sensors spaced apart from each other in a direction parallel to an operation direction of the pedal, and a controller configured to determine the depression stroke of the pedal using any one or any combination of the stroke sensor and the Hall sensors and to determine a required braking force of a vehicle, in response to the depression stroke of the pedal.

A brake device for a vehicle includes a fluid supply portion that supplies a fluid to a wheel cylinder utilizing the fluid in a reservoir and is configured such that a piston presses brake pads against a disc rotor to apply a braking force to a wheel. The brake device includes: a fluid level sensor configured to measure a value of a fluid level in the reservoir and a controller including one or more processors and configured to: estimate a wear amount of the brake pads based on a result of measurement by the fluid level sensor; estimate a heat generation amount of the brake pads based on the result of measurement; and determine whether a fluid leakage is occurring based on i) an amount of change in the fluid level that is based on the result of the measurement, ii) the wear amount, and iii) the heat generation amount.

A diagnostic tool connected to an anti-lock braking system (ABS system) is described. The diagnostic tool is capable of powering on the ABS system and measuring the load current of the ABS system while the ABS system starts up. This startup load current signature is then compared to what is considered a normal startup load current signature. Such a comparison allows the diagnostic tool to determine whether the ABS system is functioning properly or whether there is a fault with the ABS system. Additional features on the diagnostic tool also allow the tool to communicate with the ABS system via power-line communications (PLC communications) and to determine whether there are any issues with those communications. Finally, the diagnostic tool is able to receive and translate any stored or active ABS fault codes generated by the ABS system and to display those fault codes to the user.

A method for monitoring the health of a brake plate having a solenoid with a solenoid air gap includes creating a reference solenoid current profile for the brake plate solenoid air gap, by: calculating a nominal solenoid current profile based on the air gap under nominal conditions, calculating a upper and lower limit of the nominal solenoid current profile, based on an impact of at least one external variation and/or tolerance of the brake plate, and creating the reference solenoid current profile by combining said upper and lower limits into the nominal solenoid current profile. The method also includes generating and measuring a solenoid current curve of the brake plate and determining if said generated curve of the brake plate is between said upper and lower limits to determine that the brake plate is healthy.

A system and method includes upgrading a metamodel for friction coefficient prediction of a brake, in which the metamodel for friction coefficient prediction may be constructed using various derivative parameters relating to the speed, temperature and pressure of a brake disc in addition to basic parameters, such as the speed, temperature and pressure of the brake disc, to greatly improve performance and accuracy in friction coefficient prediction using the metamodel for friction coefficient prediction and to improve accuracy in evaluation of the driving performance of a vehicle through an increase in accuracy of determination of brake torque.