The consortium sees the use of hybrid technology as a groundbreaking technological enhancement in the area of drive systems for domestic refuse collection vehicles. In this project, the pre-production VarioPress DualPower vehicle from Faun Umwelttechnik GmbH & Co. KG is being used for the first time on a long-term basis within the normal operations of a refuse collection organisation.
Two power trains are combined in this model: for the journey to the refuse collection area the power train used is a standard diesel truck engine with automatic transmission and an output of 213 KW. Within the collection area itself an electric motor is then used that is powered via a diesel generator and a high-capacity energy store, known as the »Super Caps«.
As due to the nature of its work a refuse collection vehicle regularly spends over three quarters of its time collecting rubbish, the effect of this diesel/electric drive system has a clear impact. It is also expected that due to the energy recovery through electrical braking, wear on the brakes will be much less than on comparable vehicles. Electrical braking also avoids the energy-intensive consumption of compressed air.
Compared to conventional vehicles, the following results can be recorded:
- Approx. 30 % fuel saving in refuse collection mode
- Approx. 20 % less payload
- Significantly less generation of noise
- Vehicle regarded very positively by crew and public