Turbo-lag compensation system for an engine
AssigneeFord Global Technologies, LLC
InventorsAl Berger, Thomas Leone
Life of this patent
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Abstract
A boost system for an engine, comprising an engine having at least a cylinder; a fuel injector coupled to said cylinder; a compression device coupled to said engine; a compressed air storage device coupled to said compression device and configured to deliver compressed air to an air flow amplifier device located in the inlet air passageway to said cylinder; and a controller to adjust an amount of fuel injection to account for variation of air delivered to said cylinder from said flow amplifier device.
Claims21
A boost system for an engine, comprising:
- an engine having at least a cylinder;
- a fuel injector coupled to said cylinder;
- a compression device coupled to said engine;
- a compressed air storage device coupled to said compression device and configured to deliver compressed air to said cylinder through an air amplifier device;
- and
- a controller to adjust an amount of fuel injection to account for variation of air mass delivered to said cylinder through said air amplifier device.
A boost system for an engine, comprising:
- an engine having at least a cylinder;
- a fuel injector coupled to said cylinder;
- an air amplifier device coupled into the air passageway to said cylinder;
- a compression device coupled to said engine;
- a compressed air storage device coupled to said compression device and configured to selectively deliver compressed air to said air amplifier device;
- and
- a controller to determine an amount of air entering said cylinder during said selective delivery of said compressed air to the air amplifier and to adjust an amount of fuel injection to account for Increase of said air mass inducted into said cylinder, and thereby maintain a desired air-fuel ratio about stoichiometry.
A method for controlling engine operation of an engine having a turbocharger, a compressed air storage system coupled to said engine, said system selectively providing enhanced air flow to cylinders of the engine, the method comprising:
- during a driver tip-in event under conditions where said turbocharger is operating below a selected threshold, selectively providing said compressed air to the cylinder and adjusting a fuel injection amount to maintain a desired air-fuel ratio, where said fuel injection is delivered in at least two separate injections during a cylinder cycle at least for one cylinder cycle.
A boost system for an engine, comprising:
- an engine having at least a cylinder;
- a direct fuel injector coupled to said cylinder;
- a turbocharger device coupled to said engine;
- a compressed air storage device coupled to said engine and configured to selectively deliver compressed air to said cylinder;
- an air flow amplifier device coupled to the inlet air passageway to said cylinder, wherein said compressed air storage device is configured to selectively deliver compressed air through said flow amplifier device;
- and
- a controller to adjust a timing of direct fuel injection when delivering compressed air to said cylinder from said compressed air storage device.
Dependencies are inferred from the claim text.