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Steering wheel unit for detecting steering movement of steering wheel of electromechanical steering system

A steering system, steering wheel technology, applied in electric steering mechanism, mechanical steering mechanism, steering control installed on the car, etc., to achieve the effect of saving structural space, small weight, and reducing current demand

Pending Publication Date: 2021-03-23
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the prior art mentioned above, this solution requires more construction space in the transverse direction with respect to the steering wheel axis

Method used

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  • Steering wheel unit for detecting steering movement of steering wheel of electromechanical steering system
  • Steering wheel unit for detecting steering movement of steering wheel of electromechanical steering system
  • Steering wheel unit for detecting steering movement of steering wheel of electromechanical steering system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] according to figure 1An electromechanical steering system for a motor vehicle basically consists of a steering wheel unit 1 in a cylinder-shaped housing 2 of which a steering wheel shaft 3 is rotatably mounted. A steering wheel 4 for operation by a driver is attached to the distal end of the steering wheel shaft 3 .

[0023] Via an electrical connection 5 , the steering wheel unit 1 is connected to a steering actuator unit 7 by means of an electronic control unit 6 . Steering actuator unit 7 is used to convert the steering signal predetermined electrically by steering wheel unit 1 by means of control device 6 into a mechanical adjustment of the steering angle of wheels 8 a and 8 b of axle 9 that can be steered there.

[0024] figure 2 A cross-sectional view of the steering wheel unit 1 along section A-A is shown. The first housing part 2 a surrounds the force generating device 10 . The force generating device 10 has (from outside to inside to the middle) an elastic...

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PUM

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Abstract

The invention relates to a steering wheel unit for an electromechanical steering system of a motor vehicle, wherein the steering wheel unit comprises a steering wheel shaft, a housing, and a force generating device for applying a mechanical feedback force to a steering wheel to feed back a current steering and / or driving state to a driver. The force generating device is arranged inside the housing. The force-generating device comprises an inner connecting element, an elastic coupling element, and an elastic housing coupling element, wherein the elastic coupling element at least partially coaxially surrounds an inner connecting element and is connected to the inner connecting element in a force-fitting manner; the elastic housing coupling element at least partially coaxially surrounds the elastic coupling element and is connected to the elastic coupling element in a form-fitting manner; the inner connecting element is connected to the steering wheel shaft on the end side; and the force-generating device applies a force to the steering wheel shaft so that a feedback force, which can be generated on the steering wheel, for feeding back a steering state dependent on a wheel steering angle to a driver increases with an increase in the adjustment of the steering wheel deviating from straight travel.

Description

technical field [0001] The invention relates to a steering wheel unit for the sensory detection of a steering movement of a steering wheel of an electromechanical steering system of a motor vehicle. Furthermore, the invention relates to an electromechanical steering system comprising such a steering wheel unit. Background technique [0002] The field of application of the invention extends to so-called steer-by-wire motor vehicle systems in which there is no direct mechanical coupling between the steering wheel and the steering wheels of the motor vehicle. Instead, the steering angle of the steering wheel and optionally also the rotational speed of the steering wheel and / or the torque exerted on the steering wheel are detected by suitable sensor systems and transmitted in the form of electrical adjustment values ​​to the electromechanical steering wheel actuation A steering wheel actuator unit converts an electrically predetermined turn signal into a mechanical adjustment o...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D5/00B62D1/04
CPCB62D5/04B62D5/0403B62D5/006B62D1/04
Inventor M-C·科斯塔凯M-N·韦莱亚A·胡苏M·阿基姆M·科瓦奇
Owner SCHAEFFLER TECH AG & CO KG
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