Week 2 Session 7

Parallel Hybrid Architecture:- In this type of architecture, the internal combustion engine and electric motor work together to power the vehicle. The engine and the motor can both drive the wheels and the power from the two sources can be combined to increase the vehicle's efficiency.

1. Simple and inexpensive compared to other hybrid architectures.
2. Easy to control and maintain as the power sources are combined in a straightforward manner.
3. More suited for high-performance vehicles as the power from both sources can be utilized simultaneously.

1. Less efficient than other hybrid architectures as the engine and electric motor are not optimized to work together.
2. May not provide a significant improvement in fuel efficiency or emissions compared to conventional vehicles.

1. Improved fuel efficiency and emissions compared to parallel hybrid architecture.
2. More suited for vehicles with stop-start driving patterns as the engine can be turned off when not needed.
3. The engine can be optimized for generation efficiency rather than propulsion efficiency.

1. More complex and expensive compared to parallel hybrid architecture.
2. May not provide the same level of performance as a parallel hybrid as the engine is not directly connected to the wheels.

Power-Split Hybrid Architecture: This type of architecture combines elements of both the parallel and series hybrid architectures. In a power-split hybrid, the engine and electric motor are connected to a planetary gear set that allows for a variable split of power between the two sources.

1. Offers the best of both worlds as it combines the efficiency of the series hybrid with the performance of the parallel hybrid.
2. Improved fuel efficiency and emissions compared to parallel hybrid architecture.
3. Allows for more control over the split of power between the engine and electric motor.

1. More complex and expensive compared to parallel and series hybrid architectures.
2. May require a larger and more expensive transmission system.