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Electromechanical power steering system with pivotable bearings for helical gear transmission

A power steering, electromechanical technology, applied in the direction of gear transmission, transmission, transmission parts, etc., can solve the problems of heavy load of the coupling, wear and increase of the coupling, etc., and achieve the effect of reducing the load

Active Publication Date: 2021-01-12
THYSSENKRUPP PRESTA AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This embodiment has been found to be disadvantageous because: the coupling is more heavily loaded, whereby the coupling becomes worn more quickly over time, and the increased tooth play and corresponding vibration noise appear together

Method used

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  • Electromechanical power steering system with pivotable bearings for helical gear transmission
  • Electromechanical power steering system with pivotable bearings for helical gear transmission
  • Electromechanical power steering system with pivotable bearings for helical gear transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] exist figure 1 In , an electromechanical motor vehicle steering system 1 is schematically illustrated with a steering wheel 2 coupled with an upper steering shaft 3 and a lower steering shaft 4 in a rotationally secure manner. The upper steering shaft 3 is functionally connected to the lower steering shaft 4 by means of torsion bars. The lower steering shaft 4 is connected to the pinion 5 in a non-rotatable manner. The pinion 5 meshes with a toothed section of a toothed rack 6 in a known manner. The toothed rack 6 is displaceably mounted in the steering housing in the direction of the longitudinal axis of the toothed rack 6 . At the free end of the toothed rack 6, the toothed rack 6 is connected to a tie rod 7 by means of a ball joint, not shown. The tie rods 7 are themselves connected in known manner to respective steered wheels 8 of the motor vehicle by means of shaft members. Rotation of the steering wheel 2 via the connection of the steering shafts 3 , 4 to the ...

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PUM

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Abstract

The invention relates to an electromechanical power steering system comprising an electric servomotor (13) with a motor shaft (14), wherein the electric servomotor (13) drives a shaft (10) meshing with a helical wheel ), wherein the shaft (10) is rotatably mounted in the gear mechanism housing (16), and wherein the motor shaft (14) is coupled to the shaft by means of a coupling (15) for axial misalignment compensation and Pivoting about a pivot axis ( 30 ) perpendicular to the axis of rotation ( 10 ′) is possible by arranging the pivot axis ( 30 ) in the region of the coupling ( 15 ).

Description

technical field [0001] The present invention relates to electromechanical power steering systems. Background technique [0002] In an electromechanical power steering system, an electric motor is used to generate a torque, which is transmitted to a gear mechanism and superimposed at this point on the steering torque provided by the driver. [0003] A common electromechanical power steering system includes an electric power steering system that drives a worm shaft that engages a worm gear disposed on the steering shaft, wherein the worm gear is operatively connected to the input shaft of the steering gear mechanism, and wherein , the worm shaft and the steering shaft are rotatably supported in a common gear mechanism housing. [0004] DE 10 2008 001 878 A1 and DE 10 2014 105 921 A1 disclose a pivot bearing for a worm gear mechanism in which the worm is supported by a gimbal mounted bearing ring. In this case, the bearing ring comprises a pivot axis which extends perpendicul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04F16H25/24F16H57/021
CPCB62D5/0409F16H1/16F16H2057/0213F16H57/021
Inventor 费利克斯·沃尼耶克里斯蒂安·科勒欧根·拉斯
Owner THYSSENKRUPP PRESTA AG