Invention Grant
- Patent Title: Power split continuously variable transmission with at least four travel ranges
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Application No.: US16761279Application Date: 2018-10-11
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Publication No.: US11077746B2Publication Date: 2021-08-03
- Inventor: Philipp Rechenbach , Benedikt Reick
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF Friedrichshafen AG
- Current Assignee: ZF Friedrichshafen AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Finch & Maloney, PLLC
- Agent Michael J. Bujold
- Priority: DE102017219999.7 20171110
- International Application: PCT/EP2018/077734 WO 20181011
- International Announcement: WO2019/091693 WO 20190516
- Main IPC: B60K6/54
- IPC: B60K6/54 ; B60K6/543 ; H02K7/00 ; H02K7/108 ; H02K7/116 ; F16H47/04 ; B60K6/365 ; F16H37/08 ; B60K6/445

Abstract:
A continuously variable power-split transmission with at least four driving ranges, within which the gear ratio of the power-split transmission can be continuously varied by a variator. A first planetary gearset with a plurality of shafts can be connected via shifting elements with another planetary gearset that also has a plurality of shafts and can be connected with a transmission output shaft. The first planetary gearset comprises four shafts and can be connected, via a first shaft, with a transmission input shaft and a first shaft of the variator. Furthermore, the first planetary gearset is connected, via a second shaft, to a second shaft of the variator, and the first planetary gearset is coupled, via a third shaft, to halves of two shifting elements and, via a fourth shaft, the first planetary gearset is coupled to a shifting element half of a further shifting element.
Public/Granted literature
- US20210188077A1 POWER SPLIT CONTINUOUSLY VARIABLE TRANSMISSION WITH AT LEAST FOUR TRAVEL RANGES Public/Granted day:2021-06-24
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