Method and system for fuel injector time delay installation
AssigneeBRP US Inc.
InventorMartin Radue
Life of this patent
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Abstract
State-of-the-art fuel injectors have an inherent time delay that is determined by an elapsed time from the time an electrical signal is received by the fuel injector from an ECU to the time that fuel is actually initially injected into the cylinder. That time is currently an average time and therefore the fuel injectors must be manufactured with very precise tolerances. The present invention includes a method and apparatus that allows the use of production fuel injectors that are more economical to manufacture by allowing wider tolerances. The invention includes determining the actual time delay for each fuel injector. The fuel injectors are supplied with a computer program and a data file containing the time delay determined especially for that particular fuel injector.
Claims6
A method of providing fuel injectors for an engine comprising the steps of:
- supplying a production fuel injector with relaxed tolerances as compared to a standard fuel injector;
- acquiring a specific time delay that characterizes the production fuel injector;
- writing the time delay to a transportable computer readable medium;
- and
- providing a computer program on a computer readable medium that, when executed, causes a computer to load the time delay into an ECU of an engine in which the production fuel injector is to be installed.
Dependencies are inferred from the claim text.