Fuel control system for limiting turbocharger speed
First Claim
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1. A method for operating a turbocharger, comprising:
- sensing with a first sensor a parameter indicative of a speed of the turbocharger;
sensing with a second sensor a parameter indicative of an engine speed;
determining with a controller a first desired engine speed, the first desired engine speed being based on the speed of the turbocharger, the engine speed multiplied by a ratio, and a maximum desired speed of the turbocharger stored in the controller, the ratio being a relation between the maximum desired speed of the turbocharger and the speed of the turbocharger; and
regulating a flow of fuel to an engine based on the first desired engine speed.
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Abstract
A method is provided for operating a turbocharger. The method includes sensing a parameter indicative of a speed of a turbocharger and a parameter indicative of an engine speed. The method also includes determining a first desired engine speed based on the speed of the turbocharger, the engine speed, and a maximum desired speed of the turbocharger. The method further includes regulating a flow of fuel to an engine based on the first desired engine speed.
27 Citations
17 Claims
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1. A method for operating a turbocharger, comprising:
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sensing with a first sensor a parameter indicative of a speed of the turbocharger; sensing with a second sensor a parameter indicative of an engine speed; determining with a controller a first desired engine speed, the first desired engine speed being based on the speed of the turbocharger, the engine speed multiplied by a ratio, and a maximum desired speed of the turbocharger stored in the controller, the ratio being a relation between the maximum desired speed of the turbocharger and the speed of the turbocharger; and regulating a flow of fuel to an engine based on the first desired engine speed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for operating a plurality of turbochargers, comprising:
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sensing with turbocharger speed sensors a parameter indicative of a speed of each turbocharger; sensing with an engine speed sensor a parameter indicative of an engine speed; determining with a controller a first desired engine speed, the first desired engine speed being based on a speed of one of the plurality of turbochargers, the engine speed, and maximum desired speeds of each turbocharger stored in the controller, the turbocharger speed being a speed of the turbocharger operating closest to its maximum desired speed; and regulating a flow of fuel to an engine based on the first desired engine speed. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A power system, comprising:
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an engine; a fuel system situated to supply fuel to the engine; at least one turbocharger situated to supply charged air to the engine; and a controller configured to regulate the rate of fuel being supplied to the engine, the regulation of the rate of fuel being supplied being based on a first parameter indicative of a speed of the at least one turbocharger sensed by a first sensor, a second parameter indicative of an engine speed sensed by a second sensor, and a maximum desired speed of the at least one turbocharger stored in the controller, the maximum desired speed of the at least one turbocharger being set to be an overspeed limit of the at least one turbocharger. - View Dependent Claims (17)
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Specification