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Technical Paper

The Nissan Hybrid Vehicle

Technologies applied to the Nissan Tino Hybrid, marketed in March 2000, in Japan, are expected to evolve into the core powertrain technologies of the future, for the following technical advantages inherent to hybrid EVs: 1 Regeneration of deceleration energy 2 Motor driven propulsion at low speed, combined with power-assisted operation in the mid- and high-load ranges. It is expected that a number of models will be introduced to the market in the future, which pursue these advantages in various forms, resulting in HEV technologies to accelerate the use of electric power for the vehicle. Fuel cell vehicles will be included in this future scenario. In this paper, our view on the future HEV technologies will be described. In addition, the latest technologies applied to the Nissan Tino Hybrid will be introduced.
Technical Paper

FEM analysis on gap control mechanism in batting process of tailored blank sheets production

Recently tailored blank sheets are widely and very often applied to car body's panels in order to reduce weight and number of automobile parts. The tailored blank sheets are produced by welding more than two metal sheets. The gap between edges of blank sheets before laser welding should be controlled for obtaining good quality tailored blank sheets. Therefore control of gap within 0.1mm between batting two blank sheets for production is one of main subjects for producing tailored blank sheets. This report presents not only a new mechanism on gap control but also a development of Finite Element Method (FEM) analysis for prediction of gap. The new mechanism has been applied successfully to produce good quality tailored blank sheets. The gap prediction simulation can reduce the time for gap control apparatus design.
Technical Paper

Development of an Electric Motor for a Newly Developed Electric Vehicle

This paper describes the development of the drive motor adopted on the newly developed 2013 Model Year (MY) electric vehicle (EV). Based on the 2011MY EV that was specifically designed and engineered for mass-production, the 2013MY powertrain integrates the electric motor, inverter and charging system into one unit in order to achieve downsizing and weight saving, unlike previous 2011 model which had these components segregated. In general, integration of all components into one unit causes deterioration of the noise and vibration performance of vehicles due to an increase in weight and the number of resonance parts. In order to overcome such problems associated with this integration, each component in the 2013 model has been optimized to reduce noise and vibration resulting in high degree of vehicle quietness.