Parallel & Series

While this approach is simple, it adds to the cost of the system since it needs 2 electric motors (one generator and one motor) and the power electronic converter. Consequently, the economic viability of the series hybrid kit becomes prohibitive. As the generator and engine are not acting in parallel, the engine needs to work harder to maintain the state of charge (SOC) in the battery above the necessary threshold.

Series Hybrid

Hybridtronics prefers the parallel approach.

The parallel configuration consists of only 3 components, an electric motor, the electronic controller and batteries.

In this configuration, the electric motor and the combustion engine are connected to the transmission individually. The electronic controller switches between motor and generator modes depending upon whether the vehicle is accelerating or braking.

While the controller in this configuration is more complex, the reduced number of components makes the system cheaper and economically viable.

Hybridtronics Inc.

Transforming Transportation

Parallel & Series Configurations

The series configuration consists of 5 main components, two electric motors, a power electronic converter, the electronic controller and the batteries. In this configuration, the combustion engine is directly connected to a generator. This generator can either charge the batteries (when the vehicle is slowing down) or provide power to the electric motor which in turn powers the wheels (via the transmission).

Parallel Hybrid