METHOD FOR PRODUCING A COMBINED SERVICE BRAKE CYLINDER AND SPRING-LOADED BRAKE CYLINDER OF A VEHICLE

摘要

To produce a combined service brake cylinder and spring-loaded brake cylinder for a vehicle brake system, force-actuation path characteristic curves of the brake system with the elements that can be actuated by a storage spring of the spring-loaded cylinder are measured/recorded under different operational conditions. Force-actuation characteristic curves of different storage springs for use in the spring-loaded cylinder are also measured/recorded. The minimum necessary actuation stroke of the piston of the spring-loaded cylinder and the minimum necessary spring force for a storage spring to effect a parking brake function are determined by the intersection of the force-actuation curves of the brake system with those of the storage springs. The storage spring that generates an actuation force sufficient to effect a parking brake function in the most unfavorable operating state of the brake system and with respect to maximum vehicle weight with the smallest possible actuation stroke, and the dimensions resulting from the smallest possible piston actuation stroke are selected for producing the combined service brake cylinder and spring-loaded cylinder.