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US 2009/0288413 A1Published application
Exhaust gas recirculation control systems and methods
AssigneeGM Global Technology Operations LLC
InventorsYun Xiao, Kouji Sakumoto
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Abstract
An exhaust gas recirculation control system comprises a pressure condition evaluation module and a protection module. The pressure condition evaluation module evaluates at least one of vane movement of a turbocharger and engine pressure. The protection module selectively controls an exhaust gas recirculation valve based on the at least one of the vane movement of the turbocharger and the engine pressure.
Claims20
An exhaust gas recirculation control system, comprising:
- a pressure condition evaluation module that evaluates at least one of vane movement of a turbocharger and engine pressure;
- and
- a protection module that selectively controls an exhaust gas recirculation valve based on the at least one of the vane movement of the turbocharger and the engine pressure.
A method of controlling an exhaust gas recirculation control system, comprising:
- evaluating at least one of vane movement of a turbocharger and engine pressure;
- and
- selectively controlling an exhaust gas recirculation valve based on the at least one of the vane movement of the turbocharger and the engine pressure.
Dependencies are inferred from the claim text.