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A sensor assembly used for detecting rotation angle at a rotating member in a vehicle

A technology of sensor components and rotating components, which is applied in the direction of converting sensor output, using mechanical devices to transmit sensing components, and using electric/magnetic devices to transmit sensing components, etc., which can solve the problem of battery power depletion and achieve cost saving and mechanical simplified effect

Inactive Publication Date: 2013-08-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of system has the disadvantage that a steady flow must be provided when the ignition is off to be able to recognize the rotation of the steering wheel when the ignition is off
This leads to an undesired depletion of the vehicle battery when the vehicle has not been used for an extended period of time

Method used

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  • A sensor assembly used for detecting rotation angle at a rotating member in a vehicle
  • A sensor assembly used for detecting rotation angle at a rotating member in a vehicle
  • A sensor assembly used for detecting rotation angle at a rotating member in a vehicle

Examples

Experimental program
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Embodiment Construction

[0019] as available from Figures 1 to 3 As seen in , an embodiment of the sensor assembly 1, 1a, 1b for detecting the angle of rotation at a rotating component 10 in a vehicle according to the invention comprises a measured value indicator 26 and at least one sensor 28, 28a, 28b, the output signal of the sensor is evaluated by the evaluation and control unit 30 . The rotating member 10 is coupled to a measured value indicator 26 which, in combination with the at least one sensor 28, 28a, 28b, generates a signal representing the angle of rotation of the rotating member 10 and outputs this signal to the evaluation and control Unit 30.

[0020] According to the invention, the measured value indicator 26 is implemented together with the rotating member 10 as a motion converter 20 which converts the rotation 12 of the rotating member 10 into an axial translation 22 of the measured value indicator 26 relative to the rotating member 10 . The measured value indicator 26 here has a...

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PUM

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Abstract

The invention relates to a sensor assembly (1, 1a) used for detecting rotation angle at a rotating member in a vehicle. The rotating member is connected with a measured value indicator (26) which is connected with at least one sensor (28, 28a, 28b) to generate a signal indicating the rotation angle of the rotating member (10). According to the invention, the measured value indicator (26) and the rotating member (10) form a movement converter (20) which converts the rotation (12) of the rotating member (10) to the axial translation of the measured value indicator (26) relative to the rotating member (10). The measured value indicator (26) comprises a base (26.1) which can be guided longitudinally and movably on the rotating member (10) through a central hole (26.4). The at least one sensor (28, 28a and 28b) determines the displacement covered by the measured value indicator (26) and the displacement represents the rotation angle of the rotating member (10).

Description

technical field [0001] The invention relates to a sensor arrangement for detecting an angle of rotation at a rotating component in a vehicle according to the preamble of independent claim 1 . Background technique [0002] In known steering angle sensors, a counting wheel for determining the number of revolutions of the steering wheel is scanned contactlessly by means of a magnetic field sensor. This type of system has the disadvantage that a constant flow must be provided when the ignition is switched off in order to be able to recognize a rotation of the steering wheel when the ignition is switched off. This leads to an undesired drain of the vehicle battery when the vehicle has not been used for a long period of time. If this steady flow is not provided, the steering angle can no longer be determined unambiguously when the steering wheel is turned with the ignition switched off or the battery switched off. [0003] For example, laid-open document DE 10 2007 052 ​​162 A1 ...

Claims

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Application Information

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IPC IPC(8): G01B21/22G01B7/30
CPCG01D5/12G01D2205/22G01D2205/26
Inventor G·比朔平克R·哈斯
Owner ROBERT BOSCH GMBH
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