Invention Grant
- Patent Title: Multispeed transmission
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Application No.: US16348527Application Date: 2017-11-09
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Publication No.: US10995827B2Publication Date: 2021-05-04
- Inventor: Peter Ziemer , Kai Bornträger , Christoph Margraf , Andreas Beisswenger , Stefan Brom
- 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: DE102016222226.0 20161111
- International Application: PCT/EP2017/078693 WO 20171109
- International Announcement: WO2018/087199 WO 20180517
- Main IPC: F16H3/66
- IPC: F16H3/66 ; F16H3/72 ; B60K6/48 ; B60K6/547 ; B60K6/365

Abstract:
A multi-speed transmission has drive and output shafts, three front-mounted and two rear-mounted planetary gear sets, and shift elements which can be engaged to selectively implement at least eleven forward gears and one reverse gear. The front gear sets are connected to one element of the rear gear sets. Five shift elements are assigned to the front gear sets and two are assigned to the rear gear sets, such that the front gear sets transmit seven output speeds to the rear gear sets. If normalized to the input speed of the drive shaft, at least one output speed of the front gear sets is less than 0, one output speed is greater than 1, one output speed is equal to 0, one output speed is equal to 1 and two output speeds are between 0 and 1.
Public/Granted literature
- US20190293153A1 MULTISPEED TRANSMISSION Public/Granted day:2019-09-26
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