Stagecoach hybrid buses make your journey cleaner, greener and more comfortable. They’re much smoother and quieter than traditional buses, using 30% fuel and a third less CO2 emissions.
In an electric-hybrid bus, the engine is designed to produce enough electricity to maintain the average power that’s needed to run the bus.
When the bus needs more energy - like pulling away from a bus stop, it draws the extra energy from the battery supply. Once the demand for power lowers, the controller unit diverts the generated energy to the batteries to be stored.
There’s no gearbox on a hybrid bus which means no gear changes, making the ride smoother and more comfortable.
A traditional bus has a large powerful engine connected directly to the drive shaft.
When the driver uses the brake there is friction between the pad and the disc, generating lots of energy which is lost as heat.