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rotation angle sensor

A rotation angle sensor, the technology of rotating ground, applied in steering mechanism, measuring device casing, quick-action fasteners, etc., can solve the problems affecting the accuracy and influence of the sensor, and achieve the effect of avoiding noise formation and high precision

Active Publication Date: 2018-08-28
海拉有限双合股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this spring is that at higher temperatures the spring force decreases and the housing is affected by the rotational play (even if this play is small) and thus adversely affects the accuracy of the sensor

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] Depend on figure 1 It can be seen that the rotational angle sensor comprises a housing 1 in or on which a printed circuit board 2 is fastened and in which or on which two rotors 3 , 4 are rotatably mounted. The two main sides of the housing 1 are each closed by means of a cover 6 , one of which is not shown. In motor vehicles, for example, the rotational angle sensor is assigned to a steering column with which rotors 3 , 4 rotate jointly. The housing 1 has a corresponding circular opening 1a, which is arranged approximately centrally. In order to fasten the housing 1 to a fastening part of the motor vehicle, a connection element 7 is provided so that the housing 1 is immobilized in rotation relative to the steering movement.

[0015] The printed circuit board 2 has stators, for example in the form of conductor tracks, and electrical and / or electronic components, which are assigned to the rotors 3 , 4 . The stator is arranged concentrically around a substantially circ...

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PUM

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Abstract

The invention relates to an angular position sensor for determining a relative angular position in relation to a reference position, comprising a housing (1), at least one rotor (3, 4) that is rotatably mounted in the housing (1), and a printed circuit board (2) that has electric and / or electronic components and one or more stators, corresponding to the number of rotors (3, 4). A connecting component (7) prevents the housing (1) from being twisted in a groove of a stationary part of a motor vehicle. The aim is to improve said angular position sensor in such a way as to avoid play under any operating conditions when preventing the housing from being twisted and make it easy to mount the sensor. In order to be able to do so, a plastic spring (13) of the connecting component (7) is supported by a metal spring (14).

Description

technical field [0001] The invention relates to an angle-of-rotation sensor for determining a relative angular position with respect to a reference position, said angle-of-rotation sensor comprising a housing, at least one rotor rotatably mounted in the housing, and a printed circuit board, the printed circuit The plate has electrical and / or electronic components and one or more stators corresponding to the number of rotors, and the housing is prevented from turning by means of connecting elements in recesses of the fixed part of the motor vehicle. Background technique [0002] Such inductive torque sensors are known per se. They are used, for example, in motor vehicles to determine torques, such as steering torques. This is becoming more and more necessary as electric servos are increasingly used to assist steering. The servo requires steering torque for control. The steering torque can be detected in the steering column via the torsion bar as an angular difference and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D15/02F16B21/06G01D11/24
Inventor T·埃尔佩曼S·彼得斯
Owner 海拉有限双合股份公司