Controls is a research area that focuses on the design, analysis, and implementation of systems that regulate the behavior of dynamic systems. This field involves developing mathematical models to describe the behavior of a system, designing control algorithms to achieve desired system performance, and implementing these algorithms in hardware or software to manipulate the system's inputs or outputs. Controls research can be applied to a wide range of systems, including automotive, aerospace, manufacturing, robotics, and biomedical devices. Overall, the goal of controls research is to improve system performance, stability, and robustness.