Global Patent Index - EP 1226057 A4

EP 1226057 A4 2002-11-06 - EOT SERVICE BRAKE ASSIST WITHOUT RADIO COMMUNICATIONS

Title (en)

EOT SERVICE BRAKE ASSIST WITHOUT RADIO COMMUNICATIONS

Title (de)

BETRIEBSBREMSSYSTEM OHNE RADIOKOMMUNIKATION FÜR DAS ZUGENDE EINES ZUGES

Title (fr)

ASSISTANCE AU FREINAGE PRINCIPAL EN QUEUE DE TRAIN SANS RADIOCOMMUNICATIONS

Publication

EP 1226057 A4 (EN)

Application

EP 99940939 A

Priority

US 9917896 W

Abstract (en)

[origin: WO0110695A1] An apparatus and method assists a brake control system in applying the service brakes on a European freight train. The apparatus (60) includes a transducer (61), a valve (62), a flow meter (64) and a microprocessor (63). Transducer (61) measures pressure in the rear of the brake pipe. When opened, valve (62) exhausts air from the rear of the brake pipe. Flow meter (64) measures the rate at which air exhausts from valve (62). Microprocessor (63) controls valve (62) in response to the pressure and flow rate readings. When a quick service pulse is detected, microprocessor (63) opens valve (62) thereby allowing air to exhaust to the atmosphere. Using flow rate readings, microprocessor (63) calculates regularly the actual quantity of air exhausted thus far.

IPC 1-7 (main, further and additional classification)

B60T 13/74; B60T 7/00; B60T 13/00; B60T 13/66; B60T 17/22

IPC 8 full level (invention and additional information)

B60T 13/66 (2006.01); B60T 17/22 (2006.01)

CPC (invention and additional information)

B60T 13/665 (2013.01); B60T 17/228 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 0110695A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0110695 A1 20010215; EP 1226057 A1 20020731; EP 1226057 A4 20021106

INPADOC legal status


2003-09-17 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20030301

2002-11-06 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020919

2002-11-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-11-06 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7B 60T 13/74 A, 7B 60T 13/00 B, 7B 60T 7/00 B, 7B 60T 13/66 B, 7B 60T 17/22 B

2002-07-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020216

2002-07-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE