Series Hybrid Semi-Trucks: It Works for Locomotives So Why Not?
1 min read
Summary
Canadian start-up Edison Motors has revealed a prototype semi-truck that utilises a diesel-electric “series” hybrid system, in which a diesel engine is used solely as a generator at a fixed rpm to charge a smaller battery, which in turn powers an electric motor.
The system increases efficiency, particularly in start-stop traffic, without suffering the weight penalty of a heavy battery pack, and can use existing service stations and diesel fuel, unlike hydrogen-powered or all-electric alternatives.
The company is also working on conversion kits for existing trucks, and claims its technology could be adapted for other vehicles such as pick-up trucks.
Critics point out that the idea is hardly revolutionary, and point to Volvo and Scania’s decision to stop producing hybrid trucks as an indication that manufacturers have lost interest in the technology.
