METHOD AND SYSTEM FOR CONTROLLING ENGINE PERFORMANCE
First Claim
1. A method of operating a vehicle comprising an engine including a bypass path and a turbocharger, the turbocharger including a compressor and a turbine, comprising,selectively increasing gas flow to the engine by increasing gas flow through the bypass path from downstream of the compressor to upstream of the turbine.
1 Assignment
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Accused Products
Abstract
Methods and systems are provided for operating a vehicle including an engine comprising a turbocharger including a compressor and a turbine. The engine further includes a bypass path configured to selectively route gas from downstream of the compressor to upstream of the turbine. In one embodiment, the method comprises selectively increasing gas flow to the engine by adjusting gas flow through the bypass path from downstream of the compressor to upstream of the turbine. In this manner, the performance of the engine may be adjusted for various operating conditions.
36 Citations
30 Claims
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1. A method of operating a vehicle comprising an engine including a bypass path and a turbocharger, the turbocharger including a compressor and a turbine, comprising,
selectively increasing gas flow to the engine by increasing gas flow through the bypass path from downstream of the compressor to upstream of the turbine.
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12. A method of operating a vehicle comprising an engine including a bypass path and a turbocharger including a compressor and a turbine, the bypass path configured to selectively route gas from downstream of the compressor to upstream of the turbine, comprising,
adjusting flow through the bypass path from downstream of the compressor to upstream of the turbine based on whether the vehicle is operating in or within a threshold range of a tunnel.
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18. A vehicle system, comprising:
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an engine including a bypass path and a turbocharger including a turbine and a compressor, the bypass path configured to selectively route gas from downstream of the compressor to upstream of the turbine; and a control system having computer readable storage medium with code therein, the code including instructions for, calculating a distance of the vehicle system to each of a set of predefined geographic features; determining if the vehicle system is within a threshold range of any of the predefined geographic features; and adjusting the bypass path if the vehicle system is within the threshold range of any of the predefined geographic features. - View Dependent Claims (19, 20, 21)
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22. A method of operating a marine vehicle comprising an engine including a turbocharger including a compressor and a turbine, comprising,
adjusting a bypass path from downstream of the compressor to upstream of the turbine when an engine acceleration exceeds an acceleration threshold; - and
adjusting the bypass path from downstream of the compressor to upstream of the turbine when an engine deceleration exceeds a deceleration threshold. - View Dependent Claims (23, 24, 25, 26)
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27. A marine vehicle system, comprising:
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an engine including a bypass path and a turbocharger including a turbine and a compressor, the bypass path configured to selectively route gas from downstream of the compressor to upstream of the turbine; a propeller; a coupling device connected to the engine and configured to selectively engage and disengage with the propeller; a control system having computer readable storage medium with code therein, the code including instructions for, selectively engaging the propeller; selectively disengaging the propeller; adjusting a bypass path from downstream of the compressor to upstream of the turbine when an engine acceleration exceeds an acceleration threshold and the propeller is engaged; and adjusting the bypass path from downstream of the compressor to upstream of the turbine when an engine deceleration exceeds a deceleration threshold. - View Dependent Claims (28, 29, 30)
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Specification