This lesson covers the dynamics of different types of electric vehicles, including two-wheelers, e-rickshaws, and small sedans. It delves into the factors affecting the performance of these vehicles, such as weight, gradient, drag, rolling resistance, and acceleration. The lesson also explains the role of torque and power at different speeds and how they influence the vehicle's ability to overcome drag, rolling resistance, and gradient resistance. For instance, it highlights how an e-rickshaw's large weight (around 680 kg) makes climbing slopes difficult, leading to restrictions on its use on flyovers and highways. The lesson also discusses the importance of designing the drivetrain to provide adequate force, torque, and power at different speeds.
00:19 - Introduction to e-rickshaw and its specifications
02:53 - Comparison of e-rickshaw and two-wheeler in terms of drag
03:44 - Power required for e-rickshaw to move
7:45 - Gradient force and role of gear and torque in e-rickshaw's movement
16:37 - Small sedan and its specifications
18:55 - Force and power required for small sedan to move
23:30 - Role of torque in small sedan's movement
28:27 - Design considerations for the drive train of a vehicle
- The performance of electric vehicles is influenced by factors such as weight, gradient, drag, rolling resistance, and acceleration.
- Torque and power play crucial roles in overcoming drag, rolling resistance, and gradient resistance.
- The drivetrain of electric vehicles needs to be designed to provide adequate force, torque, and power at different speeds.
- E-rickshaws face challenges in climbing slopes due to their large weight, leading to restrictions on their use on flyovers and highways.
- The dynamics of electric vehicles can be understood better by studying the relationship between force, torque, power, and speed.