TCS: Plug-in hybrids in the energy consumption test

The plug-in hybrid is a vehicle powered by a combination of electric motor and combustion engine. The advantages of such a system are obvious: on the one hand, shorter distances can be covered efficiently using an electric motor, while on the other hand, longer distances can be covered with a conventional drive without any problems. In contrast to a pure hybrid vehicle, the battery is recharged at a power outlet or while driving. The manufacturers promise extremely low consumption values of less than two liters of fuel per 100 kilometers and high energy efficiency.

Audi, Mitsubishi, Toyota and Volvo under test
TCS has investigated whether these manufacturers' claims in terms of consumption and energy efficiency can also be achieved in practical tests. In the test: Audi A3 e-tron, Mitsubishi Outlander PHEV, Toyota Prius Plug-in and Volvo V60 D6 AWD Twin Engine.

Some of the plug-in hybrids examined differ significantly in terms of their technology, but all four models nevertheless performed convincingly in the test. It was shown that the fuel consumption of plug-in hybrids is significantly lower than that of conventional vehicles with combustion engines, even in practical operation. If the electricity required to operate the vehicles is generated from renewable energy sources, plug-in hybrids can make a clear contribution to reducing greenhouse gases.

However, the study also showed that low ambient temperatures greatly reduce the electric range. The testers' conclusion: Larger battery capacities are therefore required if further distances are to be covered purely electrically even in the cold season. In addition, a sufficiently high output of the e-motor is necessary so that as large a proportion as possible of the daily driving requirements can be completed purely electrically. All results can be found in detail on the Internet.

www.tcs.ch
www.audi.ch
www.mitsubishi-motors.ch
www.toyota.ch
www.volvocars.ch
Photos: TCS/Werk