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The paper is focused on possibilities to increase low or medium speed torque developed by a twin turbocharged engine, under full load operation. Sequential operation mode is analyzed from the point of view of compressor and possibilities to control transition area. A modality to reduce actual technological complications for a sequential turbocharger operation (STO) is presented by the proposal of a new simplified configuration and a new binary Controlled Blow-off Valve (CBV). More, a new turbocharger topology schema, able to operate in series or parallel connection of the compressors (SPCO) is presented. Comparison with the sequential turbocharger operation mode (STO) reveals the SPCO's mechanism, which can increase in a decisive way the low, and medium speed torque, increase turbochargers' life and simplify the transition operation mode. Solutions presented for a V6 spark ignition engine may be used without any hesitation for all twin turbo engines, including diesel.

This paper presents an all-wheel-drive (AWD) hybrid electric vehicle (HEV) design approach for extreme off-road applications. The paper focuses on the powertrain design, modeling, simulation, and performance analysis. Since this project focuses on a military-type application, the powertrain is designed to enhance crew survivability and provide several different modes of limp-home operation by utilizing a new vehicle topology -herein referred to as the island topology. This topology consists of designing the vehicle such that the powertrain and other equipment and subsystems surround the crew compartment to provide a high level of protection against munitions and other harmful ordnance. Thus, in the event of an external shield penetration, the crew compartment remains protected by the surrounding equipment - which serves as a secondary shield.

New vehicle technologies open up a vast number of new options for the designer, removing traditional constraints. Though hybrid powertrains have thus far been implemented chiefly to improve the fuel economy of already economical passenger cars, hybrid technology may have even more to offer in a performance vehicle. In the year when the C6 Corvette and two large GM hybrid projects have been unveiled, a new case study looks to combine these ideas and explore the performance limits for the next generation high performance sports car. Through an innovative transmission concept and thoughtful packaging, the next generation Corvette could enhance a 600 HP spark-ignited V-8 (supercharged LS2) with 1200 HP from electric machines, and still meet current emission standards. Such immense tractive power, however, would be useless without an intelligent means of delivering this power to the wheels.