A propulsion system is defined as the combination of components that are responsible for generating the force required to move a vehicle or machine. Depending on the application, this may involve mechanical, electrical, chemical, or hybrid energy sources. In the domain of land vehicles, propulsion systems generally comprise an engine or motor, a transmission Transmission The function of a vehicle transmission is to adjust the torque and speed, and to transfer engine power to the drive wheels. or drivetrain, and associated control units. In the maritime and aerospace domains, propulsion systems may also encompass propellers, jets, or thrusters, which facilitate the conversion of energy into directional movement. The primary objective of a propulsion system is to overcome resistance forces, such as friction, air drag, and gravity, thereby enabling controlled movement. The essential attributes for effective propulsion systems encompass efficiency, reliability, responsiveness, and compatibility with the designated vehicle application.
