System and method for increasing the temperature of a catalyst when an engine is started using model predictive control
First Claim
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1. A system comprising:
- a first model predictive control (MPC) module programmed to;
generate predicted parameters based on a model of an engine and a set of possible target values;
generate a cost for the set of possible target values based on the predicted parameters and a desired exhaust enthalpy; and
selects the set of possible target values from multiple sets of possible target values based on the cost, wherein the cost is a value that represents a loss of engine performance, the predicted parameters include a predicted exhaust enthalpy, and the first MPC module determines the cost based on a difference between the desired exhaust enthalpy and the predicted exhaust enthalpy; and
an engine actuator module that adjusts an actuator of the engine based on at least one of the target values of the selected set.
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Abstract
A system according to the principles of the present disclosure includes a first model predictive control (MPC) module and an engine actuator module. The first MPC module generates predicted parameters based on a model of an engine and a set of possible target values and generates a cost for the set of possible target values based on the predicted parameters and a desired exhaust enthalpy. The first MPC module also selects the set of possible target values from multiple sets of possible target values based on the cost. The engine actuator module adjusts an actuator of the engine based on at least one of the target values.
232 Citations
18 Claims
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1. A system comprising:
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a first model predictive control (MPC) module programmed to; generate predicted parameters based on a model of an engine and a set of possible target values; generate a cost for the set of possible target values based on the predicted parameters and a desired exhaust enthalpy; and selects the set of possible target values from multiple sets of possible target values based on the cost, wherein the cost is a value that represents a loss of engine performance, the predicted parameters include a predicted exhaust enthalpy, and the first MPC module determines the cost based on a difference between the desired exhaust enthalpy and the predicted exhaust enthalpy; and an engine actuator module that adjusts an actuator of the engine based on at least one of the target values of the selected set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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generating predicted parameters based on a model of an engine and a set of possible target values; generating a cost for the set of possible target values based on the predicted parameters and a desired exhaust enthalpy; selecting the set of possible target values from multiple sets of possible target values based on the cost, wherein the cost is a value that represents a loss of engine performance, and the predicted parameters include a predicted exhaust enthalpy; determining the cost based on a difference between the desired exhaust enthalpy and the predicted exhaust enthalpy; and adjusting an actuator of the engine based on at least one of the target values of the selected set. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification