PROCEDURE AND DEVICE FOR CONTROLLING AN AIR SUPPLY SYSTEM OF A COMBUSTION ENGINE

The invention concerns a procedure and a device for controlling an air supply system of a combustion engine with an exhaust gas system and an exhaust gas purification system with a particle filter in the exhaust gas system, whereby a boost pressure of an air supply current is controlled or can be co...

Full description

Saved in:
Bibliographic Details
Main Authors NAGEL, ANDREAS, ZINK, OLIVER, POST, CHRISTIAN
Format Patent
LanguageEnglish
Spanish
Published 08.03.2012
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:The invention concerns a procedure and a device for controlling an air supply system of a combustion engine with an exhaust gas system and an exhaust gas purification system with a particle filter in the exhaust gas system, whereby a boost pressure of an air supply current is controlled or can be controlled in the air supply system over a combustion air supply duct with the aid if a throttle valve and/or an exhaust gas recirculation between the exhaust gas system and the combustion air supply duct. Regarding the procedure it is provided according to the invention, that the air supply current is determined directly before or during a regeneration of the particle filter by different means with the aid of signals from measuring devices that are arranged in the air supply system and/or sensors that are arranged in the exhaust gas system and that the results are compared to each other. With the procedure and the device defects as leakages in the air supply system of the combustion engine can be diagnosed and thus the regeneration of the particle filter interrupted if necessary before it can be damaged by uncontrolled air infiltrations. Procedimiento, aplicación y dispositivo para el control de un sistema de alimentación de aire de un motor de combustión interna.Procedimiento y dispositivo para el control de un sistema de alimentación de aire de un motor de combustión interna con sistema de escape de gases y purificación de gases de escape mediante filtro de partículas. Se controla una presión de carga de una corriente de alimentación de aire con una válvula de estrangulamiento y/o un retorno de los gases de escape entre el sistema de escape de gases y el canal de alimentación de aire.Inmediatamente antes o durante una fase de regeneración del filtro de partículas se determina la corriente de aire de alimentación con señales de medición en la alimentación de aire y/o de sensores en el sistema de escape de gases y se comparan los resultados. El motor de combustión interna tiene una unidad de diagnosis conectada en la entrada con un sistema de medición del aire presentes en el lado del motor y con sensores adicionales en el canal de alimentación de aire.
Bibliography:Application Number: ES20090000712