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Sensor assembly for detecting angles of rotation on a rotating component in a vehicle

A technology of sensor assembly and rotating parts, applied in vehicle parts, converting sensor output, using mechanical devices to transmit sensing components, etc., can solve problems such as battery exhaustion and inability to accurately determine steering angle, and achieve mechanical simplification and cost savings Effect

Active 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

Such systems have the disadvantage that a static current has to be supplied when the ignition is switched off in order to be able to recognize a turning of the steering wheel when the ignition is switched off
This leads to undesired draining of the vehicle battery when the vehicle is not used for an extended period of time
If this quiescent current is not provided, it may not be possible to accurately determine the steering angle when turning with the ignition off or the battery disconnected

Method used

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  • Sensor assembly for detecting angles of rotation on a rotating component in a vehicle

Examples

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Embodiment Construction

[0016] As can be seen from the figures, an embodiment of the sensor assembly 1 according to the invention for detecting the angle of rotation on a rotating part 10 in a vehicle comprises a measured value transmitter 26 and at least one sensor 28, 28a, 28b, which outputs a signal The evaluation is carried out by the evaluation and control unit 30 . The rotating part 10 is coupled to a measured value transmitter 26 which, in combination with the at least one sensor 28, 28a, 28b, generates a signal representing the angle of rotation of the rotating part 10 and outputs this signal to the evaluation and control system. Unit 30.

[0017] According to the invention, the measured value transmitter 26 is embodied together with the rotary part 10 as a motion converter 20 which converts the rotation 12 of the rotary part 10 into an axial translation 22 of the measured value transmitter 26 relative to the rotary part 10 . The measured value transmitter 26 here has an elastic base body 26...

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PUM

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Abstract

The sensor arrangement (1) is coupled to a transducer (26) which is configured with a rotating component (10) as a motion converter. Rotation (12) of the rotating component converts into an axial translation (22) of the transducer in relation to the rotating component. The transducer has a resilient elastic base body (26.1) which is formed by a mounting end (26.2) and a measuring end (26.3). The measuring end is guided on the rotating component. Multiple sensors (28,28a,28b) are arranged for determining the distance covered by the measuring end of the transducer.

Description

technical field [0001] The invention relates to a sensor arrangement for acquiring an angle of rotation on a rotating part in a vehicle according to the preamble of independent claim 1 . Background technique [0002] In a known steering angle sensor, a counting wheel for determining the number of revolutions of the steering wheel is detected contactlessly by means of a magnetic field sensor. Such systems have the disadvantage that a static current must be supplied when the ignition is switched off in order to be able to detect a rotation of the steering wheel when the ignition is switched off. This leads to undesired draining of the vehicle battery when the vehicle is not used for an extended period of time. If this quiescent current is not provided, the steering angle may not be accurately determined when rotation occurs with the ignition switched off or the battery disconnected. [0003] Laid-open document DE 10 2007 052 ​​162 A1 describes, for example, a measuring devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/22
CPCB62D15/0215G01D5/147G01D2205/22
Inventor R·哈斯F·亨里齐
Owner ROBERT BOSCH GMBH