ROTARY SWITCH FOR A MOTOR VEHICLE

The invention relates to a rotary switch (1) for a motor vehicle that has a rotational position detection device, wherein the rotational position detection device has at least a first light-based transmitter/receiver pair (5a), a second light-based transmitter/receiver pair (5b), and a light screeni...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HESSEL, Alex, AUMANN, Torsten, KIRILENKO, Alexander
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention relates to a rotary switch (1) for a motor vehicle that has a rotational position detection device, wherein the rotational position detection device has at least a first light-based transmitter/receiver pair (5a), a second light-based transmitter/receiver pair (5b), and a light screening element (15), wherein the light-based transmitter/receiver pairs (5a, b) each have a light transmitter and a light receiver located opposite the light transmitter, such that a light transmission path (27) is formed between each transmitter and receiver, wherein the light screening element (15) determines the transmission properties of the respective light transmission paths (15) based on the rotational positions (D, N, R) of the rotary switch (1), wherein the transmitter/receiver pairs (5a, b) are configured such that a first spacing (d1) extending between a midpoint of the first light transmission path (27a) of the first pair (5a) and a rotational axis (9) of the rotary switch (1) differs from a second spacing (d2) extending between a midpoint of the second light transmission path (27b) of the second pair (5b) and the rotational axis (9).