A method for controlling a braking system of an electromagnetic motor, the electromagnetic motor having a moveable output shaft, comprising the steps of: receiving a velocity signal and/or an acceleration signal based on movement of the output shaft, said velocity signal and/or acceleration signal having a respective frequency spectrum; identifying an event from the velocity and/or the acceleration signal using the respective frequency spectrum, wherein said event corresponds to an uncontrolled movement of the output shaft and has a characteristic frequency spectrum.

According to an example, a disk brake is disclosed in which a caliper is supported by a mounting bracket via a slide pin, the mounting bracket being attached to a non-rotational portion of a vehicle, the disk brake comprising an electromagnet provided in connection with the slide pin, the electromagnet attracting the slide pin in an axial direction of the slide pin such that brake pads move away from a disk rotor. According to another example, a disk brake in which a caliper is supported by a mounting bracket via a slide pin, the mounting bracket being attached to a non-rotational portion of a vehicle, the disk brake comprising a magnetic material body of a backing plate of a brake pad and an electromagnet provided in a location where the electromagnet is opposed to the magnetic material body in a lateral direction of the vehicle.

A carrying device and a fixing method of a carrying device are provided. The carrying device includes a body and an electromagnet fixing module disposed on the body; wherein the electromagnet fixing module is configured to fix the carrying device. The present application uses the electromagnet fixing module to fix the carrying device, which can avoid downtime of an exposure machine caused by shaking of the carrying device when a robot arm of the exposure machine picks or places the mask form the carrying device so as to improve throughput.

Magnet assemblies for electromechanical assemblies of elevator systems are described. The magnet assemblies include a magnet and first and second block assemblies arranged on opposite sides of the magnet. In some configurations, the block assemblies each include a respective friction engagement surface and are formed of layers of sheet metal, with a portion of the layers having blade teeth that form a friction engagement surface for engagement with a guide rail. In some configurations, each of the block assemblies are formed from powder metal sintering and include a monolithic tooth configuration configured to form a friction engagement surface for engagement with a guide rail. In some configurations each of the block assemblies includes an abrasive coating configured to form a friction engagement surface for engagement with a guide rail.

An electromagnetic brake controller for controlling a negative-actuated electromagnetic brake includes an output terminal connectable to the electromagnetic brake and a brake control section that outputs, through the output terminal, a brake control signal to be provided to the electromagnetic brake. The brake control section outputs a brake control signal for releasing the electromagnetic brake in response to a normal brake command and a safety brake command both indicating ON and outputs a brake control signal for applying the electromagnetic brake in response to at least one of the normal brake command or the safety brake command indicating OFF. The electromagnetic brake controller performs both safety control and normal control over the electromagnetic brake connected to the output terminal.

A frictional damper for an elevator system includes one or more friction pads configured to move between a first position, and a second position defined by engagement of the one or more friction pads to the guide rail. An actuation unit urges the one or more friction pads into and out of engagement with the guide rail. The actuation unit includes a hydraulic actuator operably connected to the one or more friction pads to urge movement of the one or more friction pads into and out of engagement with the guide rail via hydraulic fluid pressure. The hydraulic actuator includes a hydraulic cylinder containing a volume of hydraulic fluid and a hydraulic piston located in the hydraulic cylinder and operably connected to the one or more friction pads. An electromagnetic actuator selectably urges hydraulic fluid to apply a force to the hydraulic piston, urging the movement of the friction pads.

The invention relates to a tool apparatus (10) with a drivable tool (1), comprising a shaft (2) which is coupled to the tool (1), further comprising one or plural braking bodies (3) which in particular are arranged distributed around the shaft (2) in the circumferential direction, wherein the tool apparatus (10) is adapted to bring the one or plural braking bodies (3) from a release state into a braking state in the course of a braking procedure, wherein in the braking state the one or the plural braking bodies (3) are in contact with the shaft and thereby exert a braking force upon the shaft (2), so that the shaft (2) and thereby also the tool (1) are braked and wherein in the release state the one or the plural braking bodies (3) are not in contact with the shaft (2).

A two-speed transmission system integrated with an inner rotor hub motor, including an inner rotor hub motor, a steering knuckle, a fastening screw, a first transmission casing, a second transmission casing, a screw, a first planetary gear train, a second planetary gear train, a first electromagnetic brake, a second electromagnetic brake, a tire, a wheel rim, a rim bolt, a rim nut, a wheel hub, a shaft end bolt, a brake disc and a brake caliper. This invention also provides an electric vehicle, which balances the requirements for dynamics performance and driving economics and achieves better overall performances. The two-speed transmission system of this invention realizes gear shifting and long-term no-power parking braking.

Disclosed is an elevator system, having: a car mover for moving an elevator car along a drive track in a hoistway, the car mover having: motor controlled wheels, wherein the car mover is configured to control the motor controlled wheels to move along the drive track; and a parking brake, operationally connected to the car mover and/or elevator car and operationally separate from the motor controlled wheels, wherein the car mover is configured to control the parking brake to move between a deployed state and a retracted state, wherein in the deployed state, the parking brake engages the drive track at a location that is spaced apart from the motor controlled wheels to park the car mover and/or elevator car along the hoistway, and in the retracted state, the parking brake is spaced apart from the drive track.

A braking system that includes a translatable braking mechanism selectively engageable with a wheel assembly, one or more artificial muscles contacting a support plate and disposed adjacent the translatable braking mechanism. Each of the one or more artificial muscles includes a housing having an electrode region and an expandable fluid region, a dielectric fluid housed within the housing, and an electrode pair positioned in the electrode region of the housing, the electrode pair having a first electrode and a second electrode. The electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region, expanding the expandable fluid region thereby applying pressure to the translatable braking mechanism, inducing frictional engagement between the translatable braking mechanism and the wheel assembly.