Valve arrangement for a hydraulically braked tractor vehicle with a pneumatically braked trailer vehicle

US11584345B2 · kind B2 · utility

Assignee

• ZF CV Systems Hannover GmbH · DE

Inventors

• Mirko Brütt · Ronnenberg, DE
• Michael Haverkamp · Hannover, DE
• Jan Spremberg · Waldkater, DE
• Lars Volker · Birkenfeld, DE

Key dates

• Filing date: Jan 15, 2020
• Grant date: Feb 21, 2023
• Expiry date: Nov 17, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K31/06
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A valve arrangement (2a, 2b) of a hydraulically braked tractor vehicle for controlling the brake pressure of a pneumatically braked trailer includes an electronically controlled trailer control valve (6) with an inlet valve (14), an outlet valve (16), a pneumatical relay valve (18), a breakaway valve (20) and a brake control pressure sensor (24). The valve arrangement also has a hydraulically controlled backup valve (8) with a hydraulically activated relay valve (46), a redundancy valve (112, 112′) and a hydraulic control pressure sensor (50). Output-side brake control lines (40; 62) are connected via a shuttle valve (10) to a brake coupling head (82). The valves (14, 16, 18, 20) and the pressure sensors (24, 50) of the trailer control valve (6), the valves (46, 112, 112′) of the backup valve (8) and the shuttle valve (10) may be combined in one trailer control module (98) with a single housing (100).