Method and system for activating catalyst of hybrid vehicle
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United States of America Patent
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May 31, 2016
Issued Date -
N/A
app pub date -
Oct 22, 2014
filing date -
Jun 3, 2014
priority date (Note) -
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Abstract
A method and a system for activating a catalyst of a hybrid vehicle are provided. In particular, the system and the method maintain a speed of a motor to be a predetermined speed when a transmission of the hybrid vehicle is in a neutral state and heat and activate the catalyst by increasing an engine torque through a slip of an engine clutch. The method includes increasing, by a controller, torque of an engine by controlling a slip of an engine clutch disposed between the engine and a motor of the hybrid vehicle. The controller determines whether a temperature of the catalyst of the hybrid vehicle reaches a predetermined temperature and feedback-controls the slip of the engine clutch when the temperature of the catalyst is less than the predetermined temperature.
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