Patent · US Active

Brake system for a vehicle

US8833868B2 · kind B2 · utility

8Cited by

1References

12Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Uwe Bensch · Hannover, DE
Bernd-Joachim Kiel · Wunstorf, DE
Wilfried Menze · Springe, DE
Hartmut Rosendahl · Hannover, DE

Key dates

Filing date	Dec 19, 2008
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Oct 15, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T13/683
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A pneumatically-operated vehicle brake system has a first compressed air line in which compressed air at a controllable service brake pressure can be provided. Membrane parts of brake cylinders can be ventilated by the service brake pressure for a service brake function. A parking brake device includes a second compressed air line in which compressed air can be provided at a parking brake pressure electro-pneumatically. Brake cylinder spring brake parts can be ventilated by compressed air at the service brake pressure to provide a parking brake function. The parking brake device also has a ventilation inlet by which the second compressed air line can be ventilated to increase the parking brake pressure, and a first ventilation outlet by which the second compressed air line can be ventilated to reduce the parking brake pressure. The second compressed air line can be pneumatically connected to the first via the first ventilation outlet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.