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公开(公告)号：US20180147939A1
公开(公告)日：2018-05-31
申请号：US15823670
申请日：2017-11-28
发明人： Anupam Sharma , Pete Jarzyna , Dan Harmon , Daniel M. Drill
IPC分类号： B60K17/346 , B60K23/08
CPC分类号： B60K17/3467 , B60K23/0808
摘要： A two-speed transfer case for a four-wheel drive vehicle is provided. The transfer case has a two-speed gear reduction unit, a range clutch, and a range shift mechanism. The range shift mechanism is operably disposed between an input shaft and a rear output shaft and includes a range cam defining a guide slot having a unique profile for converting rotation thereof into linear movement of the range clutch. The guide slot includes low-range dwell segment and a high-range dwell segment interconnected by a range shift segment. The range shift segment defines a plurality of interconnected cam portions, wherein each cam portion is associated with a different load required to move the range clutch between a high-range and low-range position. The transfer case further includes a mode shift mechanism for establishing a high-range drive connection and a low-range drive connection associated with the dwells of the range cam.
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公开(公告)号：US10464415B2
公开(公告)日：2019-11-05
申请号：US15823670
申请日：2017-11-28
发明人： Anupam Sharma , Pete Jarzyna , Dan Harmon , Daniel M. Drill
IPC分类号： B60K17/34 , B60K17/346 , B60K23/08
摘要： A two-speed transfer case for a four-wheel drive vehicle is provided. The transfer case has a two-speed gear reduction unit, a range clutch, and a range shift mechanism. The range shift mechanism is operably disposed between an input shaft and a rear output shaft and includes a range cam defining a guide slot having a unique profile for converting rotation thereof into linear movement of the range clutch. The guide slot includes low-range dwell segment and a high-range dwell segment interconnected by a range shift segment. The range shift segment defines a plurality of interconnected cam portions, wherein each cam portion is associated with a different load required to move the range clutch between a high-range and low-range position. The transfer case further includes a mode shift mechanism for establishing a high-range drive connection and a low-range drive connection associated with the dwells of the range cam.
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