Active control systems are technologies designed to actively manage and adjust the behavior of a system in real-time. They use sensors to monitor conditions and feedback mechanisms to make necessary adjustments, ensuring optimal performance. Common applications include automotive systems, aerospace engineering, and industrial automation. These systems differ from passive control systems, which only respond to changes without actively influencing outcomes. Active control systems can enhance stability, improve efficiency, and reduce unwanted vibrations or disturbances. Examples include active suspension systems in vehicles and smart building technologies that regulate heating and cooling based on occupancy.