Invention Grant
- Patent Title: Vehicle transmission with multiple gear ratios
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Application No.: US15454266Application Date: 2017-03-09
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Publication No.: US10228048B2Publication Date: 2019-03-12
- Inventor: Thomas Schleich
- Applicant: Bayerische Motoren Werke Aktiengesellschaft
- Applicant Address: DE Munich
- Assignee: Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee: Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Crowell & Moring LLP
- Priority: DE102014223918 20141125
- Main IPC: F16H37/04
- IPC: F16H37/04 ; F16H3/66 ; F16H3/44

Abstract:
A vehicle transmission with multiple gear ratios includes a spur-gear gearbox with a first spur gear and a second spur gear arranged on a spur-gear shaft, wherein the first spur gear meshes with a fourth spur gear and the second spur gear meshes with a third spur gear, and an epicyclic gear train with a first and a second epicyclic gear sets and a epicyclic gear train shaft. Each of the epicyclic gear sets has a ring gear and at least one epicyclic gear, and at least one of the epicyclic gear sets has a sun gear and at least one planet carrier. A gear box, the spur-gear shaft and the epicyclic gear train shaft are rotatably mounted relative to the gear box. A plurality of speed changing devices are provided, wherein the first spur gear can be selectively connected in a torque-transmitting manner to the spur-gear shaft. The vehicle transmission is characterized in that the first spur gear can be selectively connected in a torque-transmitting manner to the gear box, at least one of the sun gears can be selectively connected in a torque-transmitting manner to the gear box, and the third spur gear can be selectively connected in a torque-transmitting manner to one of the planet carriers.
Public/Granted literature
- US20170191554A1 Vehicle Transmission with Multiple Gear Ratios Public/Granted day:2017-07-06
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