US 12,331,815 B2
Chassis actuator and method for operating a transmission assembly of a chassis actuator
Benjamin Wuebbolt-Gorbatenko, Erlangen (DE); Alexander Hausmann, Erlangen (DE); Daniel Faber, Nuremberg (DE); and Alena Pöhnlein, Lonnerstadt (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/594,954
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Apr. 22, 2020, PCT No. PCT/DE2020/100330
§ 371(c)(1), (2) Date Nov. 4, 2021,
PCT Pub. No. WO2020/228891, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 10 2019 112 480.8 (DE), filed on May 13, 2019.
Prior Publication US 2022/0252141 A1, Aug. 11, 2022
Int. Cl. F16H 25/20 (2006.01); B62D 5/04 (2006.01); F16H 25/22 (2006.01)
CPC F16H 25/2252 (2013.01) [F16H 25/2003 (2013.01); B62D 5/0445 (2013.01); F16H 2025/2096 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A chassis actuator, comprising:
a rotational-linear transmission adapted for coupling, on an output side, to at least one chassis element, the rotational-linear transmission having:
an input-side element threadably engaged with an output element via non-trapezoidal threads such that rotation of the input-side element linearly displaces the output element to actuate the at least one chassis element, the input-side element mounted in a housing via at least one axial bearing,
an adjustable preloading device mounted to the housing, the adjustable preloading nut applying an adjustable axial force to the at least one axial bearing and the input-side element so as to adjust an efficiency of the chassis actuator to a value corresponding to a locked condition of the rotational-linear transmission.