CONTROLLER AND METHOD OF OPERATING AN EXHAUST-GAS PURIFICATION SYSTEM
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United States of America
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Jan 9, 2020
app pub date -
Sep 27, 2018
filing date -
Sep 27, 2018
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Abstract
A controller for an exhaust-gas purification system of a vehicle, may be configured to activate a regeneration of a diesel particulate filter when an amount of exhaust particles inside the diesel particulate filter exceeds a predetermined threshold level, and to activate a regeneration of an NOx trap catalyst at least when an amount of NOx adsorbed to the NOx trap catalyst exceeds a predetermined NOx threshold value, and wherein the controller is further designed to activate the regeneration the NOx trap catalyst at least sometimes at a beginning of and/or during the regeneration of the diesel particulate filter. The present invention further provides a corresponding method of operating an exhaust-gas purification system of a vehicle.
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