Electro-pneumatic brake control device

US8651588B2 · kind B2 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Uwe Bensch · Hannover, DE
• Henning Förster · Nordstemmen, DE
• Bernd-Joachim Kiel · Wunstorf, DE
• Wilfried Menze · Springe, DE
• Hartmut Rosendahl · Hannover, DE
• Otmar Struwe · Hannover, DE

Key dates

• Filing date: Oct 20, 2006
• Grant date: Feb 18, 2014
• Expiry date: Feb 18, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/683
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electro-pneumatic brake control device is provided for controlling the parking brake of a vehicle having compressed-air-actuated brake cylinders, at least one of which is a spring brake cylinder with a spring store part. Valve devices place the brake control device into various operating states. In a first operating state, the valve devices are at least partially supplied with current and switched such that a compressed air line to the spring store part of the spring brake cylinder is aerated. In a second state, the valve devices are at least partially supplied with current and switched such that the compressed air line is deaerated. In a third state, which can be activated in the event of failure of the electrical energy supply of the brake control device, the valve devices are switched to a currentless state such that the compressed air line is automatically deaerated in throttled manner.