This lesson covers the dynamics of electrical vehicles, focusing on the concept of tractive effort. It explains the forces required to move a vehicle, including rolling resistance, gradient force, aerodynamic drag, and acceleration forces. The lesson also delves into the effects of vehicle and wind velocity on aerodynamic drag power, and the impact of aerodynamic drag efficiency on power requirements. It further discusses the effects of different forces on vehicle velocity and power variation, and the implications of operating an electric vehicle on different terrains. The lesson concludes with the derivation of dynamic equations for understanding vehicle dynamics under different force inputs.

- The total effort required to move a vehicle is a sum of various forces including rolling resistance, gradient force, aerodynamic drag, and acceleration forces.
- The aerodynamic drag power varies with respect to vehicle velocity and wind velocity.
- The power requirement of a vehicle increases significantly with an increase in aerodynamic drag efficiency.
- Operating an electric vehicle on a slope terrain puts a heavy burden on the vehicle battery, affecting its range.
- Dynamic equations can be derived to understand the dynamics of a vehicle for different kinds of force input.

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