US 12,454,304 B2
Linear actuator for rear axle steering on a motor vehicle
Benjamin Kaiser, Pommersfelden (DE); and Mario Arnold, Aurachtal (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/802,206
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Feb. 8, 2021, PCT No. PCT/DE2021/100117
§ 371(c)(1), (2) Date Aug. 25, 2022,
PCT Pub. No. WO2021/175362, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10 2020 105 795.4 (DE), filed on Mar. 4, 2020.
Prior Publication US 2023/0356769 A1, Nov. 9, 2023
Int. Cl. B62D 5/04 (2006.01); G01D 5/20 (2006.01)
CPC B62D 5/0427 (2013.01) [B62D 5/0445 (2013.01); G01D 5/202 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A linear actuator, comprising:
a screw drive including a threaded spindle coupled to a pushrod,
a nut arranged on the threaded spindle,
an electric motor configured to rotate the nut so as to displace the threaded spindle and push rod together along a longitudinal axis,
a housing enclosing, the pushrod,
an inductive linear travel sensor configured for determining a position of the pushrod, the inductive linear travel sensor having:
a housing-side position receiver comprising a receiver section extending along the longitudinal axis, and
a pushrod-side position transmitter configured to interact contactlessly with the housing-side position receiver, the pushrod-side position transmitter constructed from an electrically conductive material and having a transmitter contour curved about at least one dimensional axis.