Title:
ROTATIONAL SPEED MEASURING DEVICE FOR A TRANSMISSION AND METHOD FOR MEASURING ROTATIONAL SPEED
Document Type and Number:
WIPO Patent Application WO/2015/003805
Kind Code:
A3
Abstract:
The invention relates to a rotational speed measuring device and to a method for measuring the rotational speed on coaxially arranged drive shafts, from which a first drive shaft is formed as an inner shaft (2) in a second drive shaft embodied as a hollow shaft (1). Said hollow shaft (1) has at least one opening (3 - 5) and a rotational speed transmitter (6) is arranged on the inner shaft (2) and can be detected by the opening (3 - 5) of the hollow shaft (1). A rotational speed sensor (7) is arranged on the outer side of the hollow shaft (1), said sensor can pick up the rotational speed on the rotational speed transmitter (6).
Inventors:
FLEISCHMANN HANS-PETER (DE)
Application Number:
PCT/EP2014/001883
Publication Date:
April 16, 2015
Filing Date:
July 09, 2014
Export Citation:
Assignee:
AUDI AG (DE)
International Classes:
F16H59/36; G01P3/44
Foreign References:
| EP0747709A1 | 1996-12-11 | |||
| US20050057244A1 | 2005-03-17 | |||
| DE10214478A1 | 2003-10-16 | |||
| EP0462435A1 | 1991-12-27 |
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