Engine emission control systems for deceleration fuel cutoff events and cold starts
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 27, 2024
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N/A
app pub date -
May 1, 2023
filing date -
May 1, 2023
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Abstract
An engine consumes fuel and air to generate an exhaust gas stream. An exhaust system channels the exhaust gas stream from the engine to a tailpipe. An aftertreatment system is included in the exhaust system and includes a catalyst. An exhaust throttle valve is disposed in the exhaust system downstream from the aftertreatment system. An actuator controls an amount of air pumped through the engine. A controller operates the exhaust throttle valve and/or the actuator to control emissions from the exhaust system during a cold start and following a deceleration fuel cutoff event.
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