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1. (WO2015044241) PULSE EMITTER FOR A DEVICE FOR DETECTING OPERATING DATA, TRANSMISSION ASSEMBLY WITH A PULSE EMITTER, TACHOGRAPH ASSEMBLY, AND METHOD FOR GENERATING AN OUTPUT SIGNAL FOR A DEVICE FOR DETECTING OPERATING DATA IN A VEHICLE

Pub. No.:    WO/2015/044241    International Application No.:    PCT/EP2014/070430
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Sep 26 01:59:59 CEST 2014
IPC: G01P 3/488
G01P 1/12
G07C 5/08
Applicants: CONTINENTAL AUTOMOTIVE GMBH
Inventors: LANGE, Roland
HUG, Klaus
PFAFF, Thomas
Title: PULSE EMITTER FOR A DEVICE FOR DETECTING OPERATING DATA, TRANSMISSION ASSEMBLY WITH A PULSE EMITTER, TACHOGRAPH ASSEMBLY, AND METHOD FOR GENERATING AN OUTPUT SIGNAL FOR A DEVICE FOR DETECTING OPERATING DATA IN A VEHICLE
Abstract:
The invention relates to a pulse emitter (1) for a device for detecting operating data in a vehicle, comprising a rotatable magnetic field generator (13), a sensor head (2) with at least one magnetic field sensor (3), and an analyzing unit (4). The pulse emitter is characterized by a reference sensor (10) in the form of another magnetic field sensor, which is arranged outside of the magnetic field generated by the magnetic field generator (13). The reference sensor can thus separately detect external magnetic field interference with which the measurement is to be manipulated for example. A detected manipulation attempt can be transmitted to the tachographs as part of the output signal (18) via an analyzing circuit (4). The signal of the reference sensor (10) can also be used in some circumstances in order to compensate for the influence of the field interference on the magnetic field sensor (3). The pulse emitter can be used in a vehicle transmission, wherein the reference sensor (10) is arranged outside of the transmission housing, and the magnetic field sensor is arranged within the transmission housing.