EP0115722B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Control device for a regeneration procedure of a particle filter for the exhaust pipe of a diesel engine
Assignee: Automobiles Peugeot SA
•
Filing: 1983-12-16
•
Granted: 1986-09-10
•
Expires: 2003-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jean Perez
- 👤 Michel Le Goff
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 14:48
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/14; F02D41/1438; F02D41/1444; F02D41/1448; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/023; F01N3/025; F01N3/031; F01N3/032; F01N9/00; F01N9/002; F01N2390/00; F01N2390/02; F01N2410/00; F01N2410/04; F02B; F02B3/00; F02B3/06; F02D2200/00; F02D2200/02; F02D2200/08; F02D2200/0812; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
Device for controlling the process of regeneration of a particle filter (6) placed in the exhaust (2) of a compression ignited engine (1), comprising a sensor (12) measuring the pressure drop across the filter and means for comparing the measured pressure drop with a threshold value and initiating the process of regeneration when the threshold value is reached, characterized in that means (18, 19, 20) are provided for modifying the value of said threshold as a function of the running speed and the load of the engine.
Claim 2
Dependent Claim
87 words
Device for controlling the process of regeneration of a particle filter (6) placed in the exhaust (2) of a compression ignited engine (1), comprising a sensor (12) measuring the pressure drop across the filter and means for comparing the measured pressure drop with a threshold value and initiating the process of regeneration when the threshold value is reached, characterized in that means (18, 19, 20) are provided for modifying the value of said threshold as a function of the running speed and the load of the engine.
Claim 3
Dependent Claim
73 words
Control device according to claim 1, characterized in that the means for modifying the threshold value comprise a memory (18) containing set values of pressure drop, corresponding to a given clogging of the filter for different values of the running speed and load of the engine, and means (19, 20) for selecting in said memory the appropriate value, as a function of the values of said speed and load at a given instant.
Claim 4
Dependent Claim
38 words
Control device according to claim 2, wherein said memory comprises inputs (19, 20) to which are applied signals representing said speed and load and an output (17) delivering a signal representing the threshold value of the pressure drop.
References Cited (Backward Citations)
EP0104783A2
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.