Method for optimizing fuel consumption in a machine powered by an internal combustion engine
First Claim
1. A method for optimizing fuel consumption in a machine powered by an internal combustion engine, comprising:
- providing a fuel economy map associated at least in part with said internal combustion engine, said fuel economy map defining a fuel economy at a plurality of operating points of said internal combustion engine;
determining a reserve need associated with said machine;
determining an available reserve of said internal combustion engine for said plurality of operating points;
identifying each operating point of said plurality of operating points having an acceptable reserve, said acceptable reserve being said available reserve that satisfies said reserve need;
evaluating said fuel economy for said each operating point; and
defining an output value for said each operating point based on said fuel economy and said acceptable reserve.
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Abstract
A method for optimizing fuel consumption in a machine powered by an internal combustion engine includes providing a fuel economy map associated at least in part with the internal combustion engine, the fuel economy map defining a fuel economy at a plurality of operating points of the internal combustion engine; determining a reserve need associated with the machine; determining an available reserve of the internal combustion engine for the plurality of operating points; identifying each operating point of the plurality of operating points having an acceptable reserve, the acceptable reserve being the available reserve that satisfies the reserve need; evaluating the fuel economy for the each operating point; and defining an output value for the each operating point based on the fuel economy and the acceptable reserve.
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Citations
28 Claims
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1. A method for optimizing fuel consumption in a machine powered by an internal combustion engine, comprising:
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providing a fuel economy map associated at least in part with said internal combustion engine, said fuel economy map defining a fuel economy at a plurality of operating points of said internal combustion engine; determining a reserve need associated with said machine; determining an available reserve of said internal combustion engine for said plurality of operating points; identifying each operating point of said plurality of operating points having an acceptable reserve, said acceptable reserve being said available reserve that satisfies said reserve need; evaluating said fuel economy for said each operating point; and defining an output value for said each operating point based on said fuel economy and said acceptable reserve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for optimizing fuel consumption in a machine powered by an internal combustion engine, comprising:
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providing a fuel economy map associated at least in part with said internal combustion engine, said fuel economy map defining a fuel economy at a plurality of operating points of said internal combustion engine; establishing a table having a plurality of entries corresponding to said plurality of operating points; assigning said plurality of entries a first output value; overlaying said fuel economy map with said table; determining a reserve need associated with said machine; determining an available reserve of said internal combustion engine for each operating point of said plurality of operating points; identifying each first operating point of said plurality of operating points having an acceptable reserve, said acceptable reserve being said available reserve that satisfies said reserve need; reassigning all entries of said plurality of entries corresponding to each second operating point not having said acceptable reserve a second output value representing an insufficient reserve; evaluating said fuel economy for said each operating point; and reassigning all entries of said plurality of entries corresponding to each third operating point having suboptimal fuel economy a third output value representing a suboptimal fuel economy. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method of operating a work machine powered by an internal combustion engine, comprising:
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determining a reserve need associated with said machine; determining a current operating point of said internal combustion engine; and generating a control signal for controlling said internal combustion engine based on a fuel economy and an available reserve of said internal combustion engine that satisfies said reserve need. - View Dependent Claims (25)
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26. A method of operating an internal combustion engine powering a work machine, comprising:
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providing an operator display having an indicator; determining a current operating point of said internal combustion engine; generating a control signal for controlling said internal combustion engine based on a fuel economy and an available reserve of said internal combustion engine relative to said current operating point; and controlling said indicator using said control signal to visibly indicate to an operator of said machine a change of operating speed of said internal combustion engine necessary to improve at least one of said fuel economy and said available reserve, wherein said indicator indicates one of said engine speed being optimized, said engine speed should be increased, and said engine speed should be decreased. - View Dependent Claims (27, 28)
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Specification