Global Patent Index - EP 0654121 A1

EP 0654121 A1 19950524 - PROCESS AND DEVICE FOR DETERMINING THE LOAD LEVEL OF PARTICLE FILTERS.

Title (en)

PROCESS AND DEVICE FOR DETERMINING THE LOAD LEVEL OF PARTICLE FILTERS.

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG DES BELADUNGSZUSTANDS VON PARTIKELFILTERN.

Title (fr)

PROCEDE ET DISPOSITIF POUR DETERMINER L'ETAT DE CHARGE DE FILTRES A PARTICULES.

Publication

EP 0654121 A1 19950524 (DE)

Application

EP 94906764 A 19930806

Priority

  • DE 4226055 A 19920806
  • EP 9302103 W 19930806

Abstract (en)

[origin: WO9403711A1] A process and device are disclosed for determining the load level of a particle filter (10) provided in the exhaust gas system (11) of a Diesel engine. The pressure drop (Delta) pfilter across the particle filter (10) is measured by a first differential pressure measurement device (21). The pressure drop (Delta) pthrottle across a cross-sectional reduction (15) of the exhaust gas system (11) is measured by a second differential pressure measurement device (22). The pressure value measured in the first differential pressure measurement device (21) is correlated with the pressure value measured in the second differential pressure measurement device (22) in order to form a real characteristic value (IK), and the real characteristic value (IK) is compared with a limit characteristic value (GK), so that when the difference is sufficiently small a regeneration process is initiated.

IPC 1-7

F01N 3/02

IPC 8 full level

F01N 3/025 (2006.01); F01N 9/00 (2006.01); F02B 3/06 (2006.01)

CPC (source: EP)

F01N 3/025 (2013.01); F01N 9/002 (2013.01); F02B 3/06 (2013.01); Y02T 10/40 (2013.01)

Citation (search report)

See references of WO 9403711A1

Designated contracting state (EPC)

AT DE ES FR GB IT NL SE

DOCDB simple family (publication)

WO 9403711 A1 19940217; DE 4226055 C1 19940915; EP 0654121 A1 19950524

DOCDB simple family (application)

EP 9302103 W 19930806; DE 4226055 A 19920806; EP 94906764 A 19930806