Control device and control method for a vehicle compressed air preparation device

US8529660B2 · kind B2 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Heinrich Diekmeyer · Barsinghausen, DE
• Kevin Pendzich · Hannover, DE
• Joachim Reinhardt · Hannover, DE
• Wolfgang Strache · Hemmingen, DE

Key dates

• Filing date: Aug 8, 2009
• Grant date: Sep 10, 2013
• Expiry date: Apr 3, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T17/221
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control device for a compressed air preparation device of a vehicle outputs output signals for adjusting feed phases and regeneration phases of the compressed air preparation device. A compressor feeds compressed air via an air dryer having a desiccant into a compressed air reservoir in a feed phase, and compressed air is passed out of the compressed air reservoir through the air dryer for drying the desiccant in a regeneration phase. The control device adjusts the regeneration phases depending on a current or future engine load and/or a current or future consumption of compressed air by the vehicle. In overrun phases, the desiccant can be excessively dried to a low moisture level in order to save fuel in later travel segments. Route-optimized regeneration of the desiccant as a function of engine load and/or utilization phases can also be effected.