hybrid powertrain engineering T-HYBRID INNOVATIVE 48-VOLT DIESEL-HYBRID DRIVE SYSTEM Following the successful development of a 48-volt gasoline powered hybrid drive system in collaboration with the ALABC Consortium (Advanced Lead Acid Battery Consortium), the 48-volt diesel-electric powertrain that AVL is now developing with partners is another big step forward towards meeting the future CO2 fleet emission targets with a cost-efficient mild hybrid system. The T-Hybrid system is based on a turbocharged 1 8 F O C U S Working closely with the European Technical Center of the Hyundai Motor Group, Valeo and battery manufacturer East Penn, a member of the ALABC Consortium, AVL is developing a cost-effective diesel-hybrid drive system that delivers 25 % more power while requiring around 20 % less fuel. 1.7-liter diesel engine with 25 % more power output and a mono turbocharger. Further components include an electric supercharger and a belt-driven starter generator (BSG) with a peak output of up to 14 kW and a 48V lead-carbon battery, all of which make up the hybrid concept. There is also a DCto DC converter that additionally produces 12 volt on-board voltage to supply the standard components. “Normally the potential for fuel consumption reduction in a mildhybrid system is in the range of 8 to 10 %,” explains Michael Weißbäck, Deputy Vice President, Powertrain Systems, Passenger Cars, “but in this particular application, the object of the T-Hybrid concept is to utilize accompanying measures in the engine and transmission and achieve a reduction of fuel consumption of around 20% as an overall system result for a manual transmission .” > The T-Hybrid system is based on a turbocharged 1.7-liter diesel engine, a mono turbocharger, an electric supercharger and a beltdriven starter generator (BSG).
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