Cx est le coefficient de pénétration du véhicule dans l’air le long de son axe longitudinal x.
Une des valeurs les plus faible est de 0.17 pour le concept Mercedes-Benz Vision EQXX (2022). Cette valeur est obtenue en supprimant la grille frontale, en utilisant des enjoliveurs aérodynamiques, en créant des sorties d’air derrière les enveloppes de roues avant et enfin en réduisant la voie de l’essieu arrière pour permettre de réduire la largeur hors-tout arrière de 50 millimètres.
Concept Mercedes-Benz Vision EQXX de 2022
Concept Mercedes-Benz Vision EQXX de 2022
Another topic is on the front grill: as fuel cells need more cooling performance, the frontal surface of the vehicle must be modified to increase thermal exchanges with the coolant circuit (which has a negative impact on the drag coefficient Cx)
Streamlined design: This starts already with the basic shape of its bodywork, which sets benchmarks in its class. With a cw value of 0.33, the high-decker achieves outstanding coefficients of air resistance (coach).
Did you know? 💡 Thanks to its aerodynamic design, our Mercedes-Benz
reduces fuel consumption and minimises CO2 emissions. 🚌
➡ Streamlined design: This starts already with the basic shape of its bodywork, which sets benchmarks in its class. With a cw value of 0.33, the high-decker achieves outstanding coefficients of air resistance.
➡ The aerodynamically optimised bodywork, with the windscreen embedded almost without joints, the flush driver’s window and tightly fitting doors ensure the airstream passes close over the surface. At the same time, irritating wind noise is kept to a minimum. Vehicle cleaning is also easier as there are no recesses for dirt to get stuck in.
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