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The NVH performance of electric vehicles is a key indicator of vehicle quality, being the structure-borne transmission predominating at low frequencies. Many issues are typically generated by high vibrations, transmitted through different paths, and then radiated acoustically into the cabin. A combined analysis, with both finite-element and multi-body models, enables to predict the interior vehicle noise and vibration earlier in the development phases, to reduce the development time and moreover to optimize components with an increased efficiency level. In the present work, a simulation of a Hyundai electric vehicle has been performed in IDIADA VPG with a full vehicle multibody (MBD) model, followed by vibration/acoustic simulations with a Finite elements model (FEM) in MSC. Nastran to analyze the comfort. Firstly, a full vehicle MBD model has been developed in MSC. ADAMS/Car including representative flexible bodies (generated from FEM part models).

The integration of IDIADA Spain virtual Proving Ground (ISVPG) within ADAMS/Car offers a new virtual scenario to carry out detailed analysis of durability as well as Comfort & Ride. Moreover, these high resolution roads (modeled as OpenCRG road format) support model development activities through better correlation with experimental tests. This approach helps to reduce the number of real tests and to shorten development process times. At the same time, this data would be prepared for performance testing to support driving simulator and active system development. The objective of this paper is to demonstrate the benefits to use FTire model for Ride and Comfort applications and the use of flexible bodies for better predictions. The availability of this information will depend on the status of the project and the level of maturity of the simulation input data. As a result, different levels of accuracy will be reached according to the existing input data.

The ELVA project (Advanced Electric Vehicle Architectures) was co-funded under the European Commission's 7th Framework Programme and had the goal of developing vehicle architectures specifically designed for electric powered vehicles. The consortium was formed by the Institute for Automotive Engineering (ika) of RWTH Aachen University (coordinator), Applus+ IDIADA, Volkswagen, Renault, Centro Richerche Fiat (CRF), Continental and the Swedish Vehicle and Traffic Safety Centre (SAFER).

The ELVA project (Advance Electric Vehicle Architectures) was co-funded by the European Commission's 7th Framework Programme. The project was formed by a consortium of seven partners: Institute for Automotive Engineering (ika) of RWTH Aachen University; Applus+ IDIADA; Volkswagen; Renault; Centro Richerche Fiat (CRF); Continental and the Swedish Vehicle and Traffic Safety Centre (SAFER). The objectives of the ELVA project were to generate, investigate and analyse innovative design concepts for electric vehicles (EV). Also, to deliver new modular architectures with the same level of safety as today's best known practices, while minimizing weight, maximizing energy efficiency, optimizing ergonomics and interior space, all at affordable costs. The level of comfort and performance must also be improved. All of the development strategies were summarized in form of best practices, which have been made available for designers and engineers.