Turbocharger system for diesel engine
AssigneeFord Global Technologies, LLC
InventorsDiana D. Brehob, Todd Arthur Kappauf
Life of this patent
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Abstract
A turbocharger system for a diesel engine includes an exhaust driven intake air compressor, a sensor for tracking the position of the engine's throttle and for generating a throttle position signal, and a water injection system for furnishing water to the engine's air intake. A controller receives the throttle position signal and operates the water injection system such that the rate of water injection will be increased in the event that the time rate of change of the throttle position signal indicates that the throttle pedal is being depressed at a rate exceeding a predetermined threshold.
Claims19
A turbocharger system for a diesel engine, comprising:
- an exhaust driven intake air compressor;
- a sensor for tracking the position of the engine's throttle pedal and for generating a throttle pedal position signal;
- a water injection system for furnishing water to the engine's air intake;
- an EGR system for furnishing recirculated exhaust gas to the engine's air intake;
- and
- a controller for receiving the throttle pedal position signal and for operating the water injection system and the EGR system such that the rate of exhaust recirculation will be reduced and the rate of water injection increased in the event that the time rate of change of the throttle pedal position signal indicates that the throttle is being opened at a rate which exceeds a predetermined threshold.
A method for controlling a turbocharged diesel engine, comprising the steps of:
- tracking the position of the engine's throttle and generating a corresponding throttle pedal position signal;
- injecting water into the engine's air inlet in the event that that time rate of change of the throttle pedal position signal indicates that the throttle is being opened at a rate exceeding a predetermined threshold;
- and
- increasing the amount of fuel being injected into the engine when said water is being injected.
A turbocharger system for a diesel engine, comprising:
- an exhaust driven intake air compressor;
- a sensor for tracking the position of the engine's throttle pedal and for generating a throttle pedal position signal;
- a water injection system for furnishing water to the engine's air intake;
- and
- a controller for receiving the throttle pedal position signal and for operating the water injection system such that the rate of water injection will be increased in the event that the time rate of change of the throttle pedal position signal indicates that the throttle is being depressed at a rate which will cause increased transient loading of the engine in excess of a predetermined threshold.
Dependencies are inferred from the claim text.