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

A technology of steering system and steering wheel, which is applied to electric steering mechanism, mechanical steering mechanism, and steering control mounted on a vehicle to achieve the effects of saving structural space, minimizing sliding friction loss, 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

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Experimental program
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Embodiment Construction

[0027] figure 1 A motor vehicle 10 is shown having an electromechanical steering system comprising a steering wheel unit 1 described below. Typically, the electromechanical steering system is arranged in the front region of the vehicle 10 and is provided to turn or steer the front wheels of the vehicle 10 as desired by the driver. Alternatively or additionally, the electromechanical steering system can also act on the rear wheels, for example in the case of active rear wheel steering or forklift trucks. The steering wheel unit 1 can be arranged, for example, below the instrument panel in the region of the driver's seat in the direction of the engine compartment.

[0028] according to figure 2 , the electromechanical steering system for a motor vehicle 10 essentially consists of a steering wheel unit 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 steerin...

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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 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 comprises two steering shaft nuts, two flanges, a first elastic element and a second elastic element, wherein the two steering shaft nuts are axially and adjustably arranged on an external thread section of the steering wheel shaft. Each steering shaft nut is matched with one of the flanges. The flanges are arranged around a first flange shaft and a second flange shaft in an axially adjustable manner, the first elastic element is arranged on the first flange shaft,and the second elastic element is arranged on the second flange shaft. The elastic elements can be deformed by an axial movement of the flanges, and the force generating device applies a force to thesteering 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 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 of the steering angle of the wheels of the steerable axle. [0003] ...

Claims

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Application Information

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