Method and Device for Braking a Rotating Element of an Assembly and Assembly with Such a Device

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a method and device for braking a rotating element, such as an axle or wheel, using a rotating eddy current brake with advanced control. The key innovation lies in dynamically adjusting the rotational speed of the stator's electromagnetic field to precisely control the braking force on the rotor, based on real-time measurements and target parameters. This results in optimized, controllable braking performance suitable for applications like railway vehicles.

Use CasesContent extracted from patent full text and abstract with AI.

• Braking systems for railway vehicles (e.g., trains, trams)
• Braking heavy machinery or industrial rotating equipment
• Non-contact braking solutions for scenarios where mechanical wear is a concern
• Precision speed control in industrial automation
• Retrofitting or upgrading existing eddy current braking systems with advanced digital control

BenefitsContent extracted from patent full text and abstract with AI.

• Provides wear-free, contactless braking, reducing maintenance costs and downtimes
• Enables precise and dynamic control of the braking force for improved safety and comfort
• Adapts in real-time to changing operational conditions (load, speed, etc.)
• Improves energy efficiency by optimizing braking force application
• Can function effectively up to and including a complete stop, unlike some traditional eddy current brakes
• Enhances diagnostics and safety through integrated sensor feedback and redundancy

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for braking a rotating element (2) of an assembly (1), wherein a rotor (7) of a rotating eddy current brake (6) is rotatably fixed to the rotating element (2), a stator (8) of the rotating eddy current brake (6) is supported on the assembly (1), and, during the braking operation, an excitation coil assembly (10) of the stator (8) is supplied with rotary current (iS.dq), by an electrical energy source (11) controlled by a control command (R) of a control unit (14), in such a way that a rotary field of the stator (8) rotates at an electrical angular speed (ωS). In order to optimise the braking operation, via a control command (R)-effected adjustment of the electrical angular speed (ωS) of the rotary field of the stator (8), the instantaneous difference ((ωR – ωS)Ist) between an instantaneous electrical angular speed (ωR) of the rotor (7) and the adjusted electrical angular speed (ωS) of the rotary field of the stator (8) is controlled to a desired value ((ωR - ωS) Soll) defined by the control unit (14) or determined by the control unit (14). The invention also relates to a device (5) for braking a rotating element (2) of an assembly (1), and to an assembly (1) having a device (5) of this type.