Cylinder fueling coordination for torque estimation and control
First Claim
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1. An engine control system comprising:
- a torque control module that selectively generates a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request; and
a fueling control module that halts fuel delivery to the first cylinder based on the deactivation signal, wherein the torque control module increases a spark advance of the engine at a first time after the fueling control module halts fuel injection for the first cylinder, and wherein the first time corresponds to an initial time combustion fails to occur in the first cylinder because fuel delivery has been halted.
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Abstract
An engine control system comprises a torque control module and a fueling control module. The torque control module selectively generates a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request. The fueling control module halts fuel delivery to the first cylinder based on the deactivation signal. The torque control module increases a spark advance of the engine at a first time after the fueling control module halts fuel injection for the first cylinder. The first time corresponds to an initial time combustion fails to occur in the first cylinder because fuel delivery has been halted.
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Citations
20 Claims
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1. An engine control system comprising:
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a torque control module that selectively generates a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request; and a fueling control module that halts fuel delivery to the first cylinder based on the deactivation signal, wherein the torque control module increases a spark advance of the engine at a first time after the fueling control module halts fuel injection for the first cylinder, and wherein the first time corresponds to an initial time combustion fails to occur in the first cylinder because fuel delivery has been halted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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selectively generating a deactivation signal for a first cylinder of a plurality of cylinders of an engine based on a torque request; halting fuel delivery to the first cylinder based on the deactivation signal; and increasing a spark advance of the engine at a first time after the halting of fuel injection for the first cylinder, wherein the first time corresponds to an initial time combustion fails to occur in the first cylinder because fuel delivery has been halted. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification