# US 2014/0190512 A1 · Brake system having an electromagnetic track brake device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190512 A1 - Document ID: US20140190512A1 - Status: Published application - Kind: A1 - Application number: 14/237,992 - Filed: 2012-08-10 - Published: 2014-07-10 - Earliest claimed: 2011-08-12 - Assignees: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH - Inventors: Marc-Gregory Elstorpff - Web page: https://patentgrep.com/patent/US20140190512A1 ## CPC - B61H 11/00: Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types - B08B 7/00: Cleaning by methods not provided for in a single other subclass or a single group in this subclass - B60T 1/04: acting directly on tread - B61H 7/00: Brakes with braking members co-operating with the track (positive railway stops or track brakes secured to permanent way B61K7/00) - B61H 7/08: electromagnetically operated - B61H 13/00: Actuating rail-vehicle brakes - E01H 8/10: Removing undesirable matter from rails, flange grooves, or the like {railway parts}, e.g. removing ice from contact rails, removing mud from flange grooves (heating, blowing, or fluid-applying devices installed in the track E01B19/00; built-in draining devices for rails E01B21/02; removing ballast from rails E01B27/04) - B61H: BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES (arrangements in rail vehicles for adjusting wheel-braking force to meet varying vehicular or permanent-way conditions B60T8/00; transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive, brake systems incorporating such transmitting means, e.g. air-pressure brake systems, B60T13/00; construction, arrangement or operation of valves incorporated in power brake systems B60T15/00; component parts, details or accessories of brake systems B60T17/00) - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - E01H: STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING {OR PREVENTING} FOG IN GENERAL {CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS}(cleaning in general B08B) ## Abstract A brake control device for a brake system, wherein the brake system has at least one electromagnetic track brake device, which can be supplied with current at variable amperage according to the brake control device to create a braking force, and wherein the brake control device is designed to actuate the at least one electromagnetic track brake device at a cleaning amperage during travel in order to clean a rail. Also disclosed is a brake system having such a brake control device, a rail vehicle, and a method for cleaning a rail by means of an electromagnetic track brake device. ## Claims ### Claim 1 A brake control device for a brake system of a rail vehicle, the brake system comprising: at least one magnetic track brake device to which current applied at a variable current intensity generates a braking force according to instructions from the brake control device, wherein the brake control device is designed to operate the at least one magnetic track brake device at a cleaning current intensity to clean a rail during travel. ### Claim 2 (depends on 1) The brake control device of claim 1, wherein the cleaning current intensity is lower than a braking current intensity at which current is applied to the magnetic track brake device during a braking operation. ### Claim 3 (depends on 1) The brake control device of claim 1, wherein the brake control device is connected or configured to be connected to a wheel rotation speed sensor device. ### Claim 4 (depends on 1) The brake control device of claim 1, wherein the brake control device varies the cleaning current intensity as a function of at least one wheel slip. ### Claim 5 (depends on 1) The brake control device of claim 1, wherein the brake control device is connected or configured to be connected to a braking action sensor device. ### Claim 6 (depends on 1) The brake control device of claim 1, wherein the brake control device is varies the cleaning current intensity as a function of at least one adhesion coefficient. ### Claim 7 (depends on 1) The brake control device of claim 1, wherein the brake control device varies the cleaning current intensity as a function of a change in a wheel slip and/or in an adhesion coefficient with respect to time. ### Claim 8 (depends on 1) A brake system having a magnetic track brake device and a brake control device as claimed in claim 1. ### Claim 9 (depends on 8) A rail vehicle having a brake system as claimed in claim 8. ### Claim 10 A method for cleaning a rail using a magnetic track brake device of a rail vehicle, the method comprising: applying current to the magnetic track brake device at a variable current intensity to generate a braking force according to instructions from a brake control device, wherein, the magnetic track brake device is operated at a cleaning current intensity by the brake control device. ### Claim 11 (depends on 1) A rail vehicle having a brake system having a brake control device as claimed in claim 1.