A superconducting magnet for eddy-current braking for a high-speed train. The superconducting magnet is fixed at a bottom of a bogie of the high-speed train through a connecting mechanism, and an air gap is formed between the superconducting magnet and a top of a guide rail below the bogie. The superconducting magnet after being excited generates an eddy-current effect with the guide rail of the high-speed train, so as to generate a braking force opposite to a traveling direction of the train, thereby braking the high-speed train. A liquid-level meter is provided on the superconducting magnet to detect a position of a cooling agent liquid level in real time. The superconducting magnet withstands vibration impact through elastic tie rod assemblies when the high-speed train is under operation, showing good adaptability.

A method for operating a brake system of a motor vehicle includes actuating a first actuating device of the brake system, exerting an electromechanical braking force to decelerate the motor vehicle in an event of a fault in the hydraulic braking device and when the first actuating device is actuated, and generating the electromechanical braking force after a start of the actuation of the first actuating device for a minimum generation period and/or generating the electromechanical braking force after an end of the actuation of the first actuating device for an additional continued generation period. The brake system includes a hydraulic braking device, an electromechanical braking device, and a first actuating device, in particular a brake pedal.

A method and apparatus for an automobile's magneto-rheological brake (MRB) are disclosed which include: a shaft connected to a stationary housing, a magneto-rheological fluid chamber positioned inside the stationary housing, a rotary disc connected to and rotate with the shaft, a plurality of magnetic coils wound directly onto a lateral side of the MRB chamber.

This present disclosure provides a controlling method for an actuator (104), an actuator (104), and an electromechanical brake system of brake technology. The controlling method comprises: receiving a brake demand; controlling an electric motor (108) based on the brake demand; if the brake demand satisfies a preset stationary condition within a preset period, controlling a brake force holding device (108) to lock a shaft. In this way, frequent variations of the brake demand caused by interference from ambient disturbance or the driver's unsteady brake instructions may be prevented so that the actuator can be locked timely, thereby maintaining a continuous brake torque output with low power consumption or zero power consumption to provide a continuous brake force to the vehicle.

A magnetic levitation test system and an electromagnet test method. A vehicle-mounted controller (1024), an electromagnet controller, and an electromagnet are subjected to joint test by means of the magnetic levitation test system integrated with a vehicle-mounted controller test bed (102), an electromagnet controller test bed (104), and an electromagnet test bed (106). The running condition of a train can be simulated, and the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are subjected to joint test under the simulated running condition of the train. Therefore, the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are subjected to function verification, thereby reducing the fault rate when the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are used at the same time.

A control method for moving an electromechanical parking brake, according to which method an actuator of the parking brake is moved by actuation by means of an actuator-control unit, wherein a writable, non-volatile memory unit is provided in which position data concerning the current actuator position of the actuator is stored so as to be readable and writable, and according to which method, when a write error occurs while writing the position data to the memory unit, the actuation of the actuator for moving said actuator is continued, and, when the write error is detected, a synchronization process is carried out independently of the actuation of the actuator so that, upon completion of this synchronization process, the position data stored in the memory unit correctly represents the actuator position of the actuator.

An electromechanical actuator device comprises a fixed part, a first movable part and a second movable part each arranged to move with respect to the fixed part along an actuation direction. A conductive coil (20) is wrapped around a core (28) and is housed within the fixed part (4). The first movable part (6) is coupled to the fixed part (4) by at least one restorative component (10) such that, in a working position, the first movable part (6) is separated from the fixed part (4) along the actuation direction (22) by a first actuation distance (d1). The second movable part (8) is coupled to the first movable part (6) by at least restorative component (16) such that, in the working position, the second movable part (8) is separated from the first movable part (6) along the actuation direction (22) by a second actuation distance (d2).

The invention relates to a coil device for an electromagnetic track brake for a rail vehicle. The coil device has a winding wire, which has a first end and a second end. The coil device is the first end of the winding wire is formed as a first coil connection for establishing an electrically conductive joint connection to a first connection cable and/or the second end of the winding wire is formed as a second coil connection for establishing an electrically conductive joint connection to a second connection cable.

The present disclosure relates to an electric brake system for an electric vehicle, which is more economical by simplifying a configuration of an electric vehicle that includes a main service brake and an electromagnetic brake, the electric brake system including an inductor, in a spherical shape, formed so that a drive axle penetrates through a center portion of the inductor; a plurality of springs inserted into holes defined in the inductor; an armature, in a disk shape, provided to contact the spring; and a friction disk mounted on a side of a motor, where a braking force is generated by operating the friction disk toward the armature.

The present application provides an electromechanical brake and the controlling method thereof, and an electromechanical braking system, relate to the technical field of brake, the electromechanical brake comprising an electric motor and an electromagnetic brake, the electric motor having a shaft and outputting a torque based on a braking demand, and the electromagnetic brake being configured for locking and releasing the shaft, the controlling method comprises controlling the electric motor and the electromagnetic brake based on the braking demand; controlling a power supply of the electromagnetic brake when the electromagnetic brake needs to release or lock the shaft; obtaining a target current value corresponding to the real-time temperature value based on temperature-current relationship data; and when a difference between the real-time current value and the target current value is greater than a preset range, adjusting a duty cycle of the driving voltage level. By obtaining the real-time current value to compare with a target current value to determine whether the driving voltage level of the electromagnetic brake needs to be adjusted or not, and in the case of need, adjusting the driving voltage level by adjusting the duty cycle, the electromagnetic brake can be adjusted to a desired operating state as quickly as possible, thereby reducing the power consumption of the electromagnetic brake.