Apparatus and method for calibrating an engine management system
First Claim
1. A control apparatus for an internal combustion engine that allows an operator to calibrate engine performance relative to an engine operating characteristic, the control apparatus comprising:
- a base engine control map correlating values of the characteristic with values of a base engine control;
a trim control map separate from the base engine control map, the trim control map correlating the values of the characteristic with values of a trim control;
an engine control unit obtaining from the base engine control and trim control maps the respective base engine control and trim control values that are based on the characteristic value, and calculating an engine operating control value based on the obtained values, the calculated engine operating control value being supplied to the internal combustion engine to vary the engine performance; and
a panel operatively coupled with the engine control unit and including a first switch regulating a trim signal supplied to the engine control unit, the first switch being adapted to be manipulated by the operator, and the trim signal causing the engine control unit to modify the trim control values in the trim control map.
1 Assignment
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Accused Products
Abstract
A method and control apparatus for an internal combustion engine that allows an operator to calibrate engine performance relative to an engine operating characteristic. The control apparatus comprises a base engine control map that correlates values of the characteristic with values of a base engine control, a trim control map that correlates the values of the characteristic with values of a trim control, an engine control unit that obtains from the base engine control and trim control maps the respective base engine control and trim control values that are based on the characteristic value, and a panel that is operatively coupled with the engine control unit and includes a first switch regulating a trim signal supplied to the engine control unit. The trim control map is separated from the base control map. The engine control unit calculates an engine operating control value based on the obtained values. The calculated engine operating control value is supplied to the internal combustion engine to vary the engine performance. The first switch is adapted to be manipulated by the operator. And the trim signal causes the engine control unit to modify the trim control values in the trim control map.
4 Citations
28 Claims
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1. A control apparatus for an internal combustion engine that allows an operator to calibrate engine performance relative to an engine operating characteristic, the control apparatus comprising:
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a base engine control map correlating values of the characteristic with values of a base engine control;
a trim control map separate from the base engine control map, the trim control map correlating the values of the characteristic with values of a trim control;
an engine control unit obtaining from the base engine control and trim control maps the respective base engine control and trim control values that are based on the characteristic value, and calculating an engine operating control value based on the obtained values, the calculated engine operating control value being supplied to the internal combustion engine to vary the engine performance; and
a panel operatively coupled with the engine control unit and including a first switch regulating a trim signal supplied to the engine control unit, the first switch being adapted to be manipulated by the operator, and the trim signal causing the engine control unit to modify the trim control values in the trim control map. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control apparatus for an internal combustion engine that allows an operator to calibrate engine performance, the control apparatus comprising:
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a first sensor detecting a first engine operating characteristic of the internal combustion engine, the first sensor supplying a first sensor signal representing the first characteristic;
a second sensor detecting a second engine operating characteristic of the internal combustion engine, the second sensor supplying a second sensor signal representing the second characteristic;
a set of base control maps correlating values of the first and second characteristics with values of a base first engine control and with values of a second base engine control;
a set of trim control maps separate from the set of base control maps, the set of trim control maps correlating values of the first and second characteristics with values of a first trim control and with values of a second trim control;
an engine control unit obtaining from the base control and trim control maps the respective first base engine control, the second base engine control, the first trim control, and the second trim control values that are based on the characteristic value, calculating a first engine operating control value based on the obtained values of the first base engine control and the first trim control, and calculating a second engine operating control value based on the obtained values of the second base engine control and the second trim control, the calculated first and second engine operating control values being supplied to the internal combustion engine to vary the engine performance;
a panel operatively coupled with the engine control unit and adapted to interface with the operator, the panel including;
a first switch regulating a trim signal supplied to the engine control unit, the first switch being adapted to be manipulated by the operator, and the trim signal causing the engine control unit to modify at least one of the first and second trim control values in the set of trim control maps;
a second switch regulating a trim defeat signal supplied to the engine control unit, the second switch being adapted to be manipulated by the operator between a first configuration and a second configuration, in the first configuration of the second switch the trim defeat signal causing the engine control unit to calculate the first and second engine operating control values equal to respective ones of the first and second base engine control values modified by respective ones of the first and second trim control values, and in the second configuration of the second switch the trim defeat signal causing the engine control unit to calculate the first and second engine operating control values equal to respective ones of the first and second base engine control values; and
a display receiving from the engine control unit an information signal, the information signal being indicated by the display so as to be interpretable by the operator. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28)
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17. A control apparatus for an internal combustion engine that allows an operator to calibrate engine performance, the control apparatus comprising:
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a first sensor detecting a first engine operating characteristic of the internal combustion engine, the first sensor supplying a first sensor signal representing the first characteristic;
a second sensor detecting a second engine operating characteristic of the internal combustion engine, the second sensor supplying a second sensor signal representing the second characteristic;
a first set of base control maps and a second set of base control maps, each of the first and second sets of base control maps including a first base engine control map and a second base engine control map, each of the first base engine control maps correlating values of the first and second characteristics with values of a first base engine control and each of the second base engine control maps correlating values of the first and second characteristics with values of a second base engine control;
a first set of trim control maps and a second set of trim control maps, the first and second sets of the trim control maps being separate from the first and second sets of the base control maps, each of the first and second sets of trim control maps including a first trim control map and a second trim control map, each of the first trim control maps correlating values of the first and second characteristics with values of a first trim control and each of the second trim control maps correlating values of the first and second characteristics with values of a second trim control;
an engine control unit obtaining from the first and second sets of base control and trim control maps the respective first base engine control, the second base engine control, the first trim control, and the second trim control that are based on the characteristic value, calculating a first engine operating control value based on the obtained values of the first base engine control and the first trim control, and calculating a second engine operating control value based on the obtained values of the second base engine control and the second trim control, the calculated first and second engine operating control values being supplied to the internal combustion engine to vary the engine performance;
a data port operatively coupled to the engine control unit, the data port being adapted to download the first and second sets of base control maps from an external processor and to upload the first and second sets of the trim control maps to the external processor; and
a panel operatively coupled with the engine control unit and adapted to interface with the operator, the panel including;
a first switch regulating a map selection signal supplied to the engine control unit, the first switch being adapted to be manipulated by the operator between a first arrangement and a second arrangement, in the first arrangement of the first switch the map selection signal causing the engine control unit to access the first set of base control maps and the first set of trim control maps, and in second arrangement of the first switch the map selection signal causing the engine control unit to access the second set of base control maps and the second set of trim control maps, a second switch regulating a trim signal supplied to the engine control unit, the second switch being adapted to be manipulated by the operator, and the trim signal causing the engine control unit to modify at least one of the first and second trim control values in the set of trim control maps assessed according to the arrangement of the first switch; and
a display receiving from the engine control unit an information signal, the information signal being indicated by the display so as to be interpretable by the operator.
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23. A method for allowing an operator to calibrate engine performance relative to first and second engine operating characteristics of an internal combustion engine, the method comprising:
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providing to an engine control unit a set of base control maps and a set of trim control maps, the set of base control maps including a first base engine control map and a second base engine control map, the first base engine control map correlating values of the first and second characteristics with values of a first base engine control, and the second base engine control map correlating values of the first and second characteristics with values of a second base engine control, the set of trim control maps including a first trim control map and a second trim control map, the first trim control map correlating values of the first and second characteristics with values of a first trim control, and the second trim control map correlating values of the first and second characteristics with values of a second trim control, the engine control unit obtaining from the base control and trim control maps the respective first base engine control, second base engine control, first trim control, and second trim control values that are based on the characteristic values, calculating a first engine operating control value based on the obtained values of the first base engine control and the first trim control, and calculating a second engine operating control value based on the obtained values of the second base engine control and the second trim control, the calculated first and second engine operating control values being supplied to the internal combustion engine to vary the engine performance;
modifying with trim signals at least one of the first and second trim control values in a corresponding one of the first and second trim control maps, the trim signals being regulated by a first switch adapted to be manipulated by the operator.
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Specification