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US 10,858,987 B2Granted
Method and system for compressor outlet temperature regulation
AssigneeFord Global Technologies, LLC
InventorsMario Anthony Santillo, John Erik Mikael Hellstrom, Hamid-Reza Ossareh, Baitao Xiao
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Abstract
Methods and systems are provided for controlling a boosted engine system, having a turbocharger and a charge air cooler, to limit overheating of a compressor outlet. In one example, a method includes predicting an engine torque profile based on current and future engine operating conditions. The method then models a compressor outlet temperature profile and reduces engine torque output to limit overheating of the compressor outlet.
Claims15
A method for an engine coupled to a vehicle, comprising:
- adjusting an engine torque output based on a future compressor outlet temperature profile to maintain an actual compressor outlet temperature below a threshold, the future compressor outlet temperature profile based on current and predicted engine operating conditions estimated based on inputs from external vehicle communications.
A vehicle system, comprising:
- an engine including an intake manifold;
- an intake throttle coupled to the intake manifold;
- an intake compressor coupled upstream of the intake throttle for providing a boosted aircharge to the intake manifold;
- an intercooler coupled downstream of the intake compressor via a tubing;
- a navigation system communicatively coupled to a network, the navigation system configured to retrieve one or more inputs including vehicle data, navigation data, location data, map data, terrain data, and weather data from the network;
- and
- a controller with computer readable instructions stored on non-transitory memory for:
- estimating actual and predicted engine operating conditions for an upcoming segment of vehicle travel based on the one or more inputs retrieved at the navigation system;
- calculating a compressor outlet temperature profile for the upcoming segment of vehicle travel based on the estimated actual and predicted engine operating conditions;
- and
- maintaining an actual compressor outlet temperature below a threshold temperature via adjustments to the intake throttle, the adjustments responsive to the calculated compressor outlet temperature profile.
8 more elements
Dependencies are inferred from the claim text.