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Aerodynamic drag plays a major role in road-load (average contribution is more than 53% of total road-load). Thus it is highly important to reduce aerodynamic drag to increase fuel economy of ICE and driving distance of x-EV.
Examples of passive and active aerodynamic drag reduction devices currently applied in mass production vehicles
Wake balance by applying rear spoiler
Air curtain for wheel & wheel house drag reduction
Underbody fairing for drag reduction and underbody heat management
Wheel deflector for drag reduction and brake cooling
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