Invention Application
- Patent Title: System and Method for Reducing Cold Start Emissions using an Active Exhaust Valve and an Exhaust Gas Recirculation Loop.
- Patent Title (中): 使用主动排气阀和排气再循环减少冷启动排放的系统和方法。
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Application No.: US14726869Application Date: 2015-06-01
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Publication No.: US20160348554A1Publication Date: 2016-12-01
- Inventor: Amanpal S. GREWAL , Sergio QUELHAS
- Applicant: GM Global Technology Operations LLC
- Main IPC: F01N3/20
- IPC: F01N3/20 ; F01N11/00 ; F02M26/52 ; F02M26/15 ; F02M26/32
Abstract:
A system according to the principles of the present disclosure includes an engine start module and an exhaust valve control module. The engine start module determines when an engine is started based on at least one of an input from an ignition system and the speed of the engine. The exhaust valve control module selectively fully closes an exhaust valve in an exhaust system of the engine when the engine is started to trap exhaust gas in the exhaust system.
Public/Granted literature
Information query
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