Hybrid technology is often a hot topic of discussion on DailyTech. Detractors of hybrid
technology often point out that diesel engines would make a better alternative
to achieve greater fuel efficiency. Hybrid proponents often point out that
while diesel are more efficient than gasoline motors, they are far dirtier.
Volkswagen is looking to bring the two camps together and
will unveil a diesel-electric
hybrid version of its popular Golf hatchback (known as the Rabbit here in
the U.S.) in Geneva. According to the German automotive giant, the Golf Hybrid will
achieve 83.9 MPG (Imperial gallons) which is roughly 69.9 MPG here in the U.S.
Carbon dioxide emissions are also limited to just 89g/km.
The diesel engine used in the Golf Hybrid meets all Euro 5
emissions criteria and also passes the stringent Tier 2 Bin 5 emissions
standards here in the U.S.
Given that costs involved with producing a diesel-electric
hybrid powertrain, VW is looking to spread the technology to a number of its
vehicle lines. According to 4Car,
likely transplants include the VW Jetta and the Audi A3. Other Golf-based vehicles
that would be a prime target for the new powertrain include the upcoming VW
Tiguan and Audi Q5 crossovers.
VW isn't the only company; however, that is looking towards
diesel-electric hybrid powertrains. DailyTech
reported on Peugeot's
308 Hybrid HDi in late August 2007. The 308 Hybrid HDi features a 107 HP
diesel engine which is paired to a 22 HP electric motor. The combined system
helps the vehicle achieve 69 MPG.
Diesel technology is seeing a rather large resurgence in the
U.S. thanks to new
CAFE regulations. VW is bringing back its TDI motors now that they meet
Tier 2 Bin 5 standards, Nissan is looking to drop a Renault diesel engine into
its next generation Maxima and Honda will provide four and six-cylinder diesel
engines for its cars
and trucks.