The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2001
Filed:
Apr. 12, 1999
Dario Barberis, Turin, IT;
Roberto Tione, Lauriano, IT;
SAB WABCO S.p.A., Turin, IT;
Abstract
The system comprises at least one main pneumatic duct, actuators for the service brake and the supplementary brake, at least one auxiliary reservoir connected to the main duct and at least one compact electropheumatic control assembly. This assembly has an inlet connector connected to the main duct, an inlet/outlet connector connected to the reservoir and further connected, within the assembly, the inlet connector to allow supply to the reservoir of air under pressure from the main duct, and a plurality of further inlet/outlet connectors connected to the service and supplementary brake actuators. At least at one pneumatic control circuit for controlling the service and supplementary brake is connected between the reservoir and the further inlet/outlet connectors and comprise a plurality of solenoid control valves and pressure sensors/transducers. An electronic communications and control unit is connected to a communications bus, to the sensors, transducers and to the solenoid control valves, and control these latter to perform service braking or supplementary braking.