Vehicle brake system having an electronic unit for determining a vehicle reference speed

US6840587B2 · kind B2 · utility

Assignee

• KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH · DE

Inventors

• Wolfgang Eberle · Mainz, DE
• Reinhold Mayer · Karlsfeld, DE

Key dates

• Filing date: Mar 5, 2002
• Grant date: Jan 11, 2005
• Expiry date: Mar 5, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2250/04
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

For determining a reference speed which is approximated to the actual vehicle speed, at least two wheel sensors are provided for each wheel speed to be measured. All existing wheel sensors are analyzed, and only one is selected and used for determining the reference speed as a function of the actual driving condition and of at least one defined speed criterion. At least one sensor is always available for controlling each wheel, even if one sensor is faulty.