Cylinder event based fuel control
AssigneeFord Global Technologies, LLC
InventorsBen Allen Strayer, Daniel Lawrence Meyer, Frank Gonzales JR., Garth Michael Meyer, Michael Smokovitz, Donald James Lewis
Life of this patent
Estimating the term…
Abstract
A method to deliver fuel during a start for an internal combustion engine is described. The method provides individual cylinder fuel control based on the number of fueled cylinder events. The method offers improved engine emissions while maintaining engine run-up performance.
Claims29
A fuel control method for an internal combustion engine, comprising:
- determining individual cylinder event air amounts;
- counting a number of fueled cylinder events from a start of the internal combustion engine;
- and
- adjusting injected fuel amount based on said counted number of fueled cylinder events and said individual cylinder event air amounts.
A fuel control method for an internal combustion engine, comprising:
- injecting fuel at least onto closed intake valves from the start of the internal combustion engine;
- counting a number of fueled cylinder events from a start of said internal combustion engine;
- and adjusting said injected fuel amount based on said counted number of fueled cylinder events.
A fuel control method for an internal combustion engine, comprising:
- determining individual cylinder event air amounts;
- counting a number of fueled cylinder events from a start of an internal combustion engine;
- adjusting injected fuel amount based on said counted number of fueled cylinder events and said individual cylinder event air amounts;
- and
- adjusting cylinder spark angle based on cylinder burn rate and said number of fueled cylinder events.
A fuel control method for an internal combustion engine, comprising:
- determining individual cylinder event air amounts;
- counting a number of fueled cylinder events from a start of an internal combustion engine;
- injecting a fuel amount, at least once, to all cylinders asynchronous from engine timing;
- and
- injecting additional fuel amounts to individual cylinders, after said asynchronous injected fuel amount, based on said counted number of fueled cylinder events and said individual cylinder event air amounts.
A fuel control method for an internal combustion engine, comprising:
- determining individual cylinder event air amounts;
- counting a number of fueled cylinder events from a start of the internal combustion engine;
- injecting a fuel amount, at least once, to all cylinders asynchronous from engine timing;
- injecting additional fuel amounts synchronous to individual cylinders events, after said asynchronous injected fuel amount, based on said counted number of fueled cylinder events and said individual cylinder event air amounts;
- and
- adjusting cylinder spark angle based on cylinder burn rate and said number of fueled cylinder events.
A fuel control method for an internal combustion engine, comprising:
- determining individual cylinder event air amounts;
- counting a number of fueled cylinder events from a start of the internal combustion engine;
- adjusting injected fuel amount based on said counted number of fueled cylinder events and said individual cylinder event air amounts in a first operating mode;
- and
- adjusting injected fuel amount based on time since start and said individual cylinder event air amounts in a second operating mode.
A computer readable storage medium having stored data representing instructions executable by a computer to control a fueled internal combustion engine, said storage medium comprising:
- instructions for determining individual cylinder event air amounts;
- instructions for counting a number of fueled cylinder events from a start of the internal combustion engine;
- and
- instructions for adjusting injected fuel amount based on said counted number of fueled cylinder events and said individual cylinder event air amounts.
Dependencies are inferred from the claim text.