Method and system for controlling exhaust gas flow in engine system
AssigneeHyundai Motor Company
InventorKihoon Nam
Life of this patent
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Abstract
A method and system for controlling an exhaust gas flow in an engine system are provided. The method includes detecting operating conditions of an engine and operating a valve that is disposed on a line bypassing a catalyst unit based on the operating conditions such that exhaust gas bypasses the catalyst unit. The operating conditions include a vehicle speed, an engine rotation speed, a fuel injection amount, an accelerator pedal signal, a coolant temperature, or a lambda value of exhaust gas.
Claims18
A method for controlling an exhaust gas flow in an engine system, comprising;
- detecting, by a controller, operating conditions of an engine;
- and
- operating, by the controller, a valve disposed on a line that bypasses a catalyst unit based on the operating conditions such that exhaust gas bypasses the catalyst unit.
A system for controlling an exhaust gas flow in an engine system, comprising:
- a memory configured to store program instructions;
- and
- a processor configured to execute the program instructions, the program instructions when executed configured to:
- detect operating conditions of an engine;
- and
- operate a valve disposed on a line that bypasses a catalyst unit based on the operating conditions such that exhaust gas bypasses the catalyst unit.
Dependencies are inferred from the claim text.