DRIVE AXLE ASSEMBLY HAVING AN UNDER-DRIVE ARRANGEMENT AND METHOD OF SELECTING THE SAME
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United States of America Patent
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Issued Date -
Jun 8, 2017
app pub date -
Dec 4, 2015
filing date -
Dec 4, 2015
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Abstract
An axle assembly, a drive axle system, and a method of selecting a drive arrangement for a drive axle system are provided. The axle assembly comprises an input shaft, an under-drive arrangement, an inter-axle differential arrangement, and an axle differential arrangement. The input shaft is in driving engagement with a source of rotational energy. The under-drive arrangement is in driving engagement with the input shaft. The inter-axle differential is in driving engagement with the under-drive arrangement. The axle differential arrangement is in driving engagement with a portion of the inter-axle differential. The under-drive arrangement is configured to reduce a drive ratio of the axle assembly between the input shaft and the inter-axle differential. The axle assembly reduces parasitic losses and is compatible with conventional driveline components.
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