Apparatus and method for automatic detection and avoidance of turbocharger surge on locomotive diesel engines
First Claim
1. A method for detecting and controlling a surge event of a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds, the method comprising:
- sensing an operating parameter of the engine system;
determining a change in the sensed operating parameter indicative of a surge event; and
controlling a speed of the diesel engine in response to the determined change.
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Accused Products
Abstract
The invention is an apparatus and method for detecting and responding to a surge event in a locomotive engine system including a turbocharger and a diesel engine. A sensor detects an operating parameter of the turbocharged engine and generates a signal indicative of the detected operatng parameter. An engine control system is responsive to the signal representative of a sensed operating parameter, or a determined changed in a sensed parameter, for controlling a plurality of operational controls of the diesel engine system. The engine control system modifies one or more operational controls of the diesel engine system when the signal indicates a surge event.
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Citations
32 Claims
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1. A method for detecting and controlling a surge event of a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds, the method comprising:
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sensing an operating parameter of the engine system;
determining a change in the sensed operating parameter indicative of a surge event; and
controlling a speed of the diesel engine in response to the determined change. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting and controlling a surge event of a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds, the method comprising:
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sensing an operating parameter of the engine system;
determining a change in the sensed operating parameter indicative of a surge event;
wherein determining the occurrence of a surge event includes determining the occurrence of three surge events within a defined period of time; and
controlling an operational control of the engine system in response to the determined change.
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7. A method for detecting and controlling a surge event of a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds, the method comprising:
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sensing an operating parameter of the engine system;
determining a change in the sensed operating parameter indicative of a surge event; and
controlling an fuel injection advance angle of the engine system in response to the determined change.
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8. A method for detecting and controlling a surge event of a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds, the method comprising:
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sensing an operating parameter of the engine system;
determining a change in the sensed operating parameter indicative of a surge event; and
controlling a horsepower load on the engine in response to the determined change.
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9. A method for detecting and controlling a surge event of a diesel engine in a locomotive engine system including a turbocharger and a diesel engine operable at a plurality of discrete speeds of operation, the method comprising:
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sensing an operating parameter of the engine system;
determining the occurrence of a surge event in the turbocharger wherein a change in the sensed operating parameter over time is indicative of a surge event;
controlling the speed of operation of the diesel engine to increase the speed of the engine from a first discrete speed to a second discrete speed for a predetermined period of time when the occurrence of a surge event is determined and thereafter decreasing the speed of the diesel engine to the first speed;
monitoring for a further surge event after increasing the speed of the engine and within a predetermined period of time; and
generating a signal indicative of a surge event when a further surge event occurs during the predetermined period of time.
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10. An apparatus for detecting and responding to a surge event in a locomotive engine system including a turbocharger and a diesel engine the apparatus comprising:
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a sensor detecting an operating parameter of the turbocharger or the engine and generating a sensor signal indicative of the detected operating parameter; and
an engine control system responsive to the sensor signal far controlling a plurality of operational controls including a speed of the diesel engine, wherein the engine control system modifies one or more operational controls including the speed of the diesel engine when the sensor signal indicates a surge event.
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11. An apparatus for detecting and responding to a surge event in a locomotive engine system including a turbocharger and a diesel engine the apparatus comprising:
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a sensor detecting an operating parameter of the turbocharger or the engine and generating a sensor signal indicative of the detected operating parameter; and
an engine control system responsive to the sensor signal for controlling a plurality of operational controls including a fuel injection advance angle of the diesel engine system, wherein the engine control system modifies the advance angle of the fuel injection system when the sensor signal indicates a surge event.
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12. An apparatus for detecting and responding to a surge event in a locomotive engine system including a turbocharger and a diesel engine, the apparatus comprising:
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a sensor detecting an operating parameter of the turbocharger or the engine and generating a sensor signal indicative of the detected operating parameter; and
an engine control system responsive to the sensor signal for controlling a plurality of operational controls of the diesel engine including a horsepower rating of an electrical transmission system, and wherein the engine control system modifies a load on the diesel engine system when the sensor signal indicates a surge event. - View Dependent Claims (13, 14)
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15. An apparatus for detecting operating parameters indicative of a surge event in a turbocharger of a locomotive engine system including a diesel engine and the turbocharger and controlling the operation of the engine system to reduce turbocharger surge, the apparatus comprising:
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a sensor detecting an operating parameter of engine system indicative of a surge event and generating a sensor signal indicative of the detected operating parameter; and
an engine control system responsive to the sensor signal for controlling a speed of operation of the diesel engine;
wherein when the engine system experiences a surge event, the engine control system increases the speed of the diesel engine to reduce turbocharger surge. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An apparatus comprising:
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a locomotive driven by a locomotive engine system having a turbocharger and a diesel engine, the engine operable at a plurality of discrete speeds;
a sensor detecting an operating parameter of the turbocharger and/or the engine and generating a sensor signal representing the detected operating parameter; and
an engine control system for controlling the speed of the diesel engine at a discrete speed, each of which corresponds to a notch position of a throttle;
wherein the engine control system is responsive to the sensor signal and increases the speed of the diesel engine from a first discrete speed at which the diesel engine is operating to a higher discrete speed when a change in the sensor signal over time indicates a surge event of the turbocharger. - View Dependent Claims (27, 28, 29)
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30. An apparatus for detecting and responding to a surge event in a turbocharger of a locomotive driven by a diesel engine, the apparatus comprising:
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a sensor detecting an operating parameter of the turbocharger or the engine and generating a sensor signal representing the detected operating parameter; and
an engine control system for controlling a speed of the diesel engine corresponding to a position of a throttle;
wherein the engine control system is responsive to the sensor signal and increases the speed of the diesel engine when the sensor signal indicates two surge events within a defined period of time.
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31. A locomotive propulsion system comprising a variable-speed diesel engine system having a combustion air intake manifold and an exhaust manifold, a fuel controller for supplying diesel fuel to the engine cylinders, a turbocharger connected to both of the exhaust and intake manifolds of the engine and having a turbine that is driven by the engine exhaust gases and that in turn drives a compressor for supplying pressurized air to the intake manifold, an engine speed sensor for sensing the speed of the engine, an electric power transmission system mechanically driven by the engine, and an excitation controller for controlling the power output of the transmission system;
- further comprising;
a sensor equipped to sense an operating parameter of the turbocharger or the engine and equipped to generate a sensor signal representing the sensed operating parameter; and
a controller adapted to receive the generated sensor signal for increasing the engine speed from a first discrete speed to another discrete speed for a predetermined period of time when a change in the sensor signal over time indicates a surge event. - View Dependent Claims (32)
- further comprising;
Specification