The energy transition from fossil fuel to renewable energy is the driving force for changing combustion engines to electrical drive trains for Bus & Truck industry. The power convertors on the vehicles allow to charge the batteries during braking. Next to the pneumatic brake system this is considered as the second brake. For safety reasons, the vehicle must have a dual brake system, even when the batteries are fully charged. For this reason brake resistors are used in Buses & Trucks.
Although recuperation of braking energy into batteries has priority, brake resistors are used for peak loads, safety- and other aspects. The presentation explains the need, type and dimensioning of the brake resistor.
Eddie Voorspoels van Danotherm Electric A/S