US 12,432,102 B2
Method and sensor bus system
Albrecht Klotz, Leonberg (DE); Balint Nagy, Vecsés (HU); Dirk Schmid, Simmozheim (DE); Michael Schumann, Stuttgart (DE); and Torsten Reiner, Aichtal (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 18/570,248
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed May 30, 2022, PCT No. PCT/EP2022/064581
§ 371(c)(1), (2) Date Dec. 14, 2023,
PCT Pub. No. WO2022/268440, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 10 2021 206 489.2 (DE), filed on Jun. 23, 2021.
Prior Publication US 2024/0283683 A1, Aug. 22, 2024
Int. Cl. H04L 27/20 (2006.01); H04L 12/44 (2006.01); H04L 12/40 (2006.01)
CPC H04L 27/2014 (2013.01) [H04L 12/44 (2013.01); H04L 27/2082 (2013.01); H04L 2012/40273 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A sensor bus system, comprising:
an electronic controller;
a plurality of sensors; and
a twisted two-wire line between the electronic controller and the plurality of sensors, wherein the electronic controller configured to supply the plurality of sensors with electrical energy via the twisted two-wire line, and wherein the plurality of sensors are configured to transmit received environmental information to the electronic controller in an I/Q (in-phase/quadrature)-modulated manner via the twisted two-wire line,
wherein the twisted two-wire line connects the electronic controller and the plurality of sensors via a ring structure or a linear structure, in terms of information technology and energy,
wherein the plurality of sensors include ultrasonic sensors,
wherein the I/Q modulation uses a fundamental frequency of at least 100 KHz.