Invention Grant
- Patent Title: Planetary automatic transmission
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Application No.: US16467251Application Date: 2017-11-16
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Publication No.: US10759265B2Publication Date: 2020-09-01
- Inventor: Peter Ziemer , Kai Bornträger , Christoph Margraf , Stefan Brom , Andreas Beisswenger , Michael Trübenbach , Johannes Glückler
- Applicant: ZF Friedrichshafen AG
- Applicant Address: DE Friedrichshafen
- Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee: ZF FRIEDRICHSHAFEN AG
- Current Assignee Address: DE Friedrichshafen
- Agency: Davis & Bujold PLLC
- Agent Michael J. Bujold
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@550ced63
- International Application: PCT/EP2017/079466 WO 20171116
- International Announcement: WO2018/104020 WO 20180614
- Main IPC: B60K6/48
- IPC: B60K6/48 ; B60K6/365 ; F16H3/66

Abstract:
A transmission having five planetary gearsets and seven shift elements for achieving various ratios between drive and output shafts. A forward gearset has three shafts. Two intermediate gearsets have four shafts. Two main gearsets have at least four shafts. Depending on the shift states of the second and third shift elements, the forward gearset can generate two rotational speeds at the output side, which transfer from a forward gearset shaft to an intermediate gearset shaft. Depending on the shift states of the first to fifth shift elements, the intermediate gearset can generate eight rotational speeds at the output side, which pass from another intermediate gearset shaft to a main gearset shaft. Depending on the shift states of the seven shift elements, the main gearset can generate up to fourteen forward and two reverse gears at the output side, which are transferred by another main gearset shaft to the output shaft.
Public/Granted literature
- US20200079206A1 PLANETARY AUTOMATIC TRANSMISSION Public/Granted day:2020-03-12
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