Electric Vehicles: Vehicle Dynamics Modeling and Simulation

Vehicle Design and Dynamics

• According to Newton's second law, the motion of a vehicle is determined by the net force acting on the vehicle.

Vehicle Design Process

• The first step in vehicle design is understanding the requirements before starting the actual design process.

Electric Vehicle Design

• The discipline of electrical engineering typically deals with determining the rating of motors in electric vehicles.

Vehicle Modeling

• Component level design in vehicle modeling focuses on understanding the individual components of the vehicle.
• Designers move from system level design to component level design when they need to analyze individual components in detail.

Dual Motor Electric Vehicles

• Torsional dynamics is crucial to control when designing a dual motor electric vehicle.
• Understanding lateral vehicle dynamics is particularly important in scenarios involving high-speed operations.

Vehicle Forces

• The main forces that act on a vehicle are traction force, drag force, and gravity.

Importance of Vehicle Dynamics

• It is important to understand both longitudinal and lateral vehicle dynamics in the design of dual motor electric vehicles to ensure stability and control.

System Level Design

• During system level design, the designer tries to understand how the different systems of the vehicle work together.

Control Engineers' Role

• The role of control engineers in component level design is to ensure that the individual components of the vehicle work together seamlessly.

Lateral Vehicle Dynamics

• Understanding lateral vehicle dynamics is particularly important in high-speed operations because it affects the vehicle's stability and handling.

Longitudinal and Lateral Dynamics

• Longitudinal vehicle dynamics refers to the forward and backward motion of the vehicle, while lateral vehicle dynamics refers to the side-to-side motion.

Multidisciplinary Domain

• Vehicle dynamics modeling is considered a multidisciplinary domain because it involves the integration of multiple disciplines, including mechanical, electrical, and computer engineering.

Purpose of System Level Design

• The purpose of system level design is to understand how the different systems of the vehicle work together to achieve the desired performance.

Traction Force

• Traction force is crucial in determining the motion of a vehicle as per Newton's second law because it is the net force acting on the vehicle.

Component Level Design vs System Level Design

• Component level design differs from system level design in that it focuses on individual components, whereas system level design focuses on the overall system.