FIRING PATTERN MANAGEMENT FOR IMPROVED TRANSIENT VIBRATION IN VARIABLE CYLINDER DEACTIVATION MODE
First Claim
1. A cylinder control system of a vehicle, comprising:
- a cylinder control module that;
determines target numbers of cylinders of an engine to be activated during a period;
determines, based on the target numbers and an engine speed, N predetermined subsequences for controlling the cylinders of the engine during the period;
determines whether a transition parameter is associated with at least one transition between two of the N predetermined subsequences;
selectively adjusts at least one of the N predetermined subsequences based on the determination of whether a transition parameter is associated with at least two of the N predetermined subsequences; and
a cylinder actuator module that, during the period, controls the cylinders of the engine based on the N predetermined subsequences and the at least one selectively adjusted predetermine subsequences.
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Accused Products
Abstract
A system includes a cylinder control module that determines target numbers of cylinders of an engine to be activated during a period, determines, based on the target numbers and an engine speed, N predetermined sequences for controlling the cylinders of the engine during the period, determines whether a transition parameter is associated with at least one of the N predetermined subsequences and selectively adjusts at least one of the N predetermined subsequences based on the determination of whether a transition parameter is associated with at least two of the N predetermined sequences. The system further includes a cylinder actuator module that, during the period, controls the cylinders of the engine based on the N predetermined sequence and based on the at least one selectively adjusted predetermined sequences.
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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 target numbers of cylinders of an engine to be activated during a period; determines, based on the target numbers and an engine speed, N predetermined subsequences for controlling the cylinders of the engine during the period; determines whether a transition parameter is associated with at least one transition between two of the N predetermined subsequences; selectively adjusts at least one of the N predetermined subsequences based on the determination of whether a transition parameter is associated with at least two of the N predetermined subsequences; and a cylinder actuator module that, during the period, controls the cylinders of the engine based on the N predetermined subsequences and the at least one selectively adjusted predetermine subsequences. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cylinder control method of a vehicle, comprising:
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determining target numbers of cylinders of an engine to be activated during a period, determining, based on the target numbers and an engine speed, N predetermined subsequences for controlling cylinders of the engine during the period; determining whether a transition parameter is associated with at least one transition between two of the N predetermine subsequences; selectively adjusting at least one of the N predetermine subsequences based on the determination of whether a transition parameter is associated with at least two of the N predetermine subsequences; and controlling, during the period, the cylinders of the engine based on the N predetermined subsequences and the at least one selectively adjusted predetermine subsequences. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification