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Letter

A Magnetoelectric Automotive Crankshaft Position Sensor

1
Institute of Electronic and Information Systems, Novgorod State University, 173003 Veliky Novgorod, Russia
2
Faculty of Machinery and Construction Technologies in Transport, Todor Kableshkov University of Transport, 1113 Sofia, Bulgaria
3
Faculty of Telecommunication and Electrical Equipment in Transport, Todor Kableshkov University of Transport, 1113 Sofia, Bulgaria
4
Olimex Ltd., 4002 Plovdiv, Bulgaria
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(19), 5494; https://doi.org/10.3390/s20195494
Received: 28 July 2020 / Revised: 9 September 2020 / Accepted: 22 September 2020 / Published: 25 September 2020
(This article belongs to the Special Issue Magnetoelectric Sensors: Theory, Design and Application)
The paper is devoted to the possibility of using magnetoelectric materials for the production of a crankshaft position sensor for automobiles. The composite structure, consisting of a PZT or LiNbO3 piezoelectric with a size of 20 mm × 5 mm × 0.5 mm, and plates of the magnetostrictive material Metglas of the appropriate size were used as a sensitive element. The layered structure was made from a bidomain lithium niobate monocrystal with a Y + 128° cut and amorphous metal of Metglas. Various combinations of composite structures are also investigated; for example, asymmetric structures using a layer of copper and aluminum. The output characteristics of these structures are compared in the resonant and non-resonant modes. It is shown that the value of the magnetoelectric resonant voltage coefficient was 784 V/(cm·Oe), and the low-frequency non-resonant magnetoelectric coefficient for the magnetoelectric element was about 3 V/(cm·Oe). The principle of operation of the position sensor and the possibility of integration into automotive systems, using the CAN bus, are examined in detail. To obtain reliable experimental results, a special stand was assembled on the basis of the SKAD-1 installation. The studies showed good results and a high prospect for the use of magnetoelectric sensors as position sensors and, in particular, of a vehicle’s crankshaft position sensor. View Full-Text
Keywords: magnetoelectric effect; magnetoelectric structure; magnetoelectric sensor; crankshaft position sensor; automotive sensor magnetoelectric effect; magnetoelectric structure; magnetoelectric sensor; crankshaft position sensor; automotive sensor
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MDPI and ACS Style

Petrov, R.; Leontiev, V.; Sokolov, O.; Bichurin, M.; Bozhkov, S.; Milenov, I.; Bozhkov, P. A Magnetoelectric Automotive Crankshaft Position Sensor. Sensors 2020, 20, 5494. https://doi.org/10.3390/s20195494

AMA Style

Petrov R, Leontiev V, Sokolov O, Bichurin M, Bozhkov S, Milenov I, Bozhkov P. A Magnetoelectric Automotive Crankshaft Position Sensor. Sensors. 2020; 20(19):5494. https://doi.org/10.3390/s20195494

Chicago/Turabian Style

Petrov, Roman, Viktor Leontiev, Oleg Sokolov, Mirza Bichurin, Slavcho Bozhkov, Ivan Milenov, and Penko Bozhkov. 2020. "A Magnetoelectric Automotive Crankshaft Position Sensor" Sensors 20, no. 19: 5494. https://doi.org/10.3390/s20195494

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