Abstract
The purpose of the project reported in this paper was to apply Generation 2 of Visteon´s VTES electric boosting technology to Naturally Aspirated (NA) Gasoline Otto engines.
Generation 1 Systems
Prior to the availability of Generation 1 hardware the potential benefits and challenges associated with electric boosting systems remained largely theoretical and consequently the requirements for such systems were not fully understood.
Evaluation of Generation 1 hardware from several suppliers enabled the automotive industry to quantify the potential benefits and challenges associated with electric boosting systems. The resulting objective measurements and subjective feedback led to the development of new and more demanding requirements for electric boosting systems in order to ensure that they would be competitive with other technologies in series production.
This paper shows how the development of the VTES Generation 2 system has incorporated these new requirements. Visteon´s approach was to build a number of Generation 1 Proof of Concept (PoC) vehicle demonstrators to deliver the required attributes and capture customer requirements for different applications of electric boosting systems. These requirements were subsequently used to establish the design of Generation 1 production level hardware.
The paper also gives details of the development route the Generation 2 system followed to incorporate further refinements to the system requirements. These refinements were established through extensive evaluation of Generation 1 hardware, on a number of vehicle applications, with the aim of delivering enhanced torque and driveability.
Keywords:Electric, Supercharger, Performance, Economy, Fuel-Cell