Hybrid cars offer many great things in one: low emissions, fuel efficiency, and outstanding features. But apparently, comfort is not one of them.
Gratefully, General Motors thought of ways to produce a model that can challenge this fact. The end result: the Opel Astra Diesel Hybrid.
“We decided to use a diesel-powered car as a starting point because in the mid-term, we don’t see a demand for gasoline hybrids in Europe,” said Hans H. Demant, GM’s European engineering vice president and Opel’s managing director. GM decided to develop a diesel-powered car first claiming that their CDTI engines already deliver impressive dynamics and low fuel consumption. “The Astra concept demonstrates that fuel efficiency and vehicle dynamics can be significantly improved by hybrid technology." This is the foundation of the Astra Hybrid.
Additionally, they integrated the hybrid components of the Astra into its compact design, so that passenger comfort and functionality is not compromised. For instance, the nickel-metal-hydride battery pack is located in the spare tire well.
The Astra Diesel Hybrid is powered by a 92-kw 1.7-liter CDTI engine with a maintenance-free particulate filter. Two electric motors, rated at 30 kw and 40 kw delivers extra power as needed to that of the turbo-diesel engine or operates themselves in less demanding conditions. The electric motors also power the Astra Hybrid when accelerating from a full stop.
Using regenerative braking system which recharges the battery pack, the vehicle never needs to be plugged in. The electric motors are also used as generators when decelerating or when the brakes are applied.
It also incorporates two separate electrical systems within the same vehicle. The drive system uses high-voltage power for most of the driving demands. A separate 12-volt system powers safety and convenience items such as inside lights, HVAC and the audio system.
So there is no need to worry about comfort in GM’s Opel Astra Hybrid: a green car combined with the functionality and power of your ordinary diesel car.
