US Patent 7677028 Particulate trap regeneration temperature control system
Patent 7677028 was granted and assigned to Caterpillar Inc. on March, 2010 by the United States Patent and Trademark Office.
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In one aspect, the present disclosure is directed to a particulate trap regeneration temperature control system. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow of an engine. The system may also include a heating system configured to increase the temperature of the particulate trap. The system may further include a controller configured to control operation of the heating system during execution of a thermal regeneration event of the particulate trap. The controller may control operation of the heating system by effectuating a first temperature increase of the particulate trap at a predetermined rate up to a first predetermined temperature. The controller may also be configured to effectuate a first temperature hold by maintaining the temperature of the particulate trap at the first predetermined temperature for a predetermined amount of time. The controller may further be configured to effectuate a second temperature increase of the particulate trap at a predetermined rate to a higher second predetermined temperature. In addition, the controller may also be configured to effectuate a second temperature hold by maintaining the temperature of the particulate trap at the second predetermined temperature for a predetermined amount of time.
US Patent 07677028 Particulate trap regeneration temperature control system US Patent 7677028 Particulate trap regeneration temperature control system
US Patent 07677028 Particulate trap regeneration temperature control system
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