Cylinder control systems and methods for discouraging resonant frequency operation

摘要

A system includes a command generator module, a compensation module, and a fraction module. The command generator module generates a first command value and one of activates and deactivates intake and exhaust valves of a first cylinder of an engine based on the first command value. The compensation module generates a compensation value for a second cylinder of the engine based on a response of a model to the first command value. The fraction module determines a target value based on a torque request, the target value corresponding to a fraction of a total number of cylinders of the engine to be activated. The command generator module further: generates a second command value based on the compensation value and a difference between the target value and the first command value; and one of activates and deactivates intake and exhaust valves of the second cylinder based on the second command value.

主权项

1. A cylinder control system of a vehicle, comprising:
a command generator module that generates a first command value and that one of activates and deactivates intake and exhaust valves of a first cylinder of an engine based on the first command value; a compensation module that generates a compensation value for a second cylinder of the engine based on a response of a model to the first command value; a fraction module that determines a target value based on a torque request, the target value corresponding to a fraction of a total number of cylinders of the engine to be activated; an accumulation module that generates an accumulated difference based on a previous value of the accumulated difference and a difference between the target value and the first command value; and a difference module that generates an adjusted value based on a second difference between the accumulated difference and the compensation value, wherein the command generator module further:
generates a second command value based on the adjusted value; andone of activates and deactivates intake and exhaust valves of the second cylinder based on the second command value.