Cylinder deactivation torque limit for noise, vibration, and harshness

摘要

An engine control system for controlling the engine to transition between an activated mode where all cylinders are active and a deactivated mode where less than all cylinders are active is provided. The system includes: a noise vibration and harshness (NVH) limit module that determines a noise, vibration, and harshness (NVH) torque limit based on the engine speed and the vehicle speed; and a mode transition module that enables the engine to transition between the deactivated mode and the activated mode while limiting noise, vibration, and harshness based on the NVH torque limit and a requested torque.