AIR PER CYLINDER DETERMINATION SYSTEMS AND METHODS
First Claim
1. A cylinder control system of a vehicle, comprising:
- a cylinder control module that determines a desired cylinder activation/deactivation sequence and that activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence; and
an air per cylinder (APC) prediction module that predicts an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order,where Q is an integer greater than one.
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Accused Products
Abstract
A cylinder control system of a vehicle includes a cylinder control module and an air per cylinder (APC) prediction module. The cylinder control module determines a desired cylinder activation/deactivation sequence. The cylinder control module also activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence. The APC prediction module predicts an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order. Q is an integer greater than one.
49 Citations
20 Claims
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1. A cylinder control system of a vehicle, comprising:
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a cylinder control module that determines a desired cylinder activation/deactivation sequence and that activates and deactivates valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence; and an air per cylinder (APC) prediction module that predicts an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order, where Q is an integer greater than one. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cylinder control method comprising:
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determining a desired cylinder activation/deactivation sequence; activating and deactivating valves of cylinders of an engine based on the desired cylinder activation/deactivation sequence; and predicting an amount of air that will be trapped within a next activated cylinder in a firing order of the cylinders based on a cylinder activation/deactivation sequence of the last Q cylinders in the firing order, where Q is an integer greater than one. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification