1255. Road Stress Resistance and Lightweight Construction of Automobile Road Wheels

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Title1255. Road Stress Resistance and Lightweight Construction of Automobile Road Wheels
Publication TypeConference Paper
Paper Number1255
Year of Publication1978
AuthorsWimmer, Dr., A.
Paper Category31.0. WEIGHT ENGINEERING - SURFACE TRANSPORTATION
Conference37th Annual Conference, Munich, West Germany, May 8-10
Conference LocationMunich, West Germany
PublisherSociety of Allied Weight Engineers, Inc.
Date Published5/9/78
Abstract

At present the world automotive industry is undergoing a unique process of change. The need to save energy and protect the environment requires a reduction in fuel consumption. In the USA legislation has gone as far as requiring the average fuel consumption of all the vehicles sold by a company t o be reduced to 11.8 liters per 100 km by 1980 and to 8.5 liters per 100 km by 1985. These targets can best be achieved by building light.

As a rough approximation, a weight saving of 100 kg ill reduce fuel consumption by about 1.1 liters per 100 km on urban roads and about 0.5 liters per 140 km on the highway.

Audi vehicles already have a reputation for light weight construction but we have set out to achieve further considerable weight savings without reducing the dimensions of the vehicle and without affecting durability and passive safety.

The planned weight savings must be realized within a fixed cost allocation, whereby the additional costs incurred by weight saving measures must be set off by the average saving that the customer will make as a result of lower fuel costs.

Taking the example of road wheel design, the following analysis is intended to show how minimum weight can be achieved without exceeding certain cost targets.

Pages20
Key Words31. Weight Engineering - Surface Transportation, 32. Product of Inertia Measurement
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