Electronic emergency brake load weigh device

Fluid-pressure and analogous brake systems – Load control – Railway vehicle

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

303 7, 303 15, B60T 818

Patent

active

06120109&

ABSTRACT:
An electronic load weigh device is used with a railcar truck control unit. A relay valve provides to a brake cylinder a pressure proportional to the pressure impinging upon its control port. A first feedback signal is indicative of the pressure at the control port. A second feedback signal is indicative of the load borne by the truck. A pressure switch opens when pressure within a trainline changes to a level indicative of an emergency. By controlling the opening and closing of application and release magnet valves, a controller controls the pressure impinging on the control port and thereby service braking of the wheels of the truck. The load weigh device includes (i) circuitry for electronically compensating for the load during braking and (ii) a mechanism for granting the circuitry exclusive control over the magnet valves. Should such emergency occur, the mechanism responds to such emergency by disconnecting the controller from the magnet valves. This gives the circuitry exclusive control over the magnet valves. The circuitry compensates for the load borne by the truck during emergency braking by selectively opening and closing the magnet valves, according to predetermined criteria using the feedback signals, thereby controlling the magnitude of the pressure impinging upon the control port. Absent such emergency, the mechanism responds to such absence by connecting the controller to the magnet valves whereby such service braking on the truck is normally controlled, yet the circuitry is still enabled to compensate for the load during such service braking.

REFERENCES:
patent: 3059974 (1962-10-01), Van Der Sluys
patent: 3653728 (1972-04-01), Sarbach
patent: 4402047 (1983-08-01), Newton et al.
patent: 4453777 (1984-06-01), Newton
patent: 4904027 (1990-02-01), Skantar et al.
patent: 5549362 (1996-08-01), Broome
patent: 5551765 (1996-09-01), Sich
patent: 5735579 (1998-04-01), Wood et al.
patent: 5788339 (1998-08-01), Wood et al.
patent: 5887953 (1999-03-01), Wood et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electronic emergency brake load weigh device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic emergency brake load weigh device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic emergency brake load weigh device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1064743

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.