Method and system for operating an electrically controlled pressurized-fluid brake system

US6669311B2 · kind B2 · utility

Assignee

• Wabco GmbH & Co. Ohg. · DE

Inventors

• Hans Holst · Hannover, DE
• Axel Stender · Hameln, DE
• Norbert Witte · Rodenberg, DE

Key dates

• Filing date: Nov 12, 2002
• Grant date: Dec 30, 2003
• Expiry date: Nov 12, 2022

Classification

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

Abstract

A method and system for operating an electrically controlled pressurized-fluid vehicle brake system having a brake cylinder for actuating a brake, a braking-pressure sensor for obtaining braking-pressure data which indicate the braking pressure in the brake cylinder, a valve device for influencing the braking pressure by which the brake cylinder can communicate optionally with a supply pressure or with a set pressure in order to feed pressurized fluid, and a set-pressure sensor for obtaining set-pressure data. Braking pressure is adjusted as dictated by the set-pressure data and/or by the braking-pressure data. The set-pressure data are checked by temporarily switching the pressurized-fluid feed path to the brake cylinder from the supply pressure to the set pressure by actuation of at least one part of the valve device, and then monitoring the resulting braking pressure based on the braking-pressure data.