Unlock instant, AI-driven research and patent intelligence for your innovation.

Inductive position determination

An inductive, equipment technology, applied in the direction of inductors, measuring devices, conversion sensor outputs, etc., can solve the problems of temperature drift, long start-up time, etc., to achieve the effect of improved service life and compact structure

Inactive Publication Date: 2017-08-01
ZF FRIEDRICHSHAFEN AG
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such amplifiers lead to significant temperature drift, long start-up times (Einschwingzeit) and increased error susceptibility

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inductive position determination
  • Inductive position determination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 A device 100 for inductively determining the position of an element 105 is shown. The device can be used, in particular, on a motor vehicle in order to determine the position or state of the movable element. For example, the position of a selector lever relative to a base for a gear stage of the transmission can be detected. In a further embodiment, the steering angle between the motor vehicle and the trailer coupled by means of the trailer coupler can be determined. The magnetic element 105 is generally an element which influences the alternating magnetic field to which it is exposed. In this case, element 105 can be electrically conductive in order to weaken the alternating magnetic field in the region of coil 115 or can be ferromagnetic and electrically insulating in order to strengthen the alternating magnetic field in the region of coil 115 . In the first case, element 105 may comprise, for example, copper or aluminum, and in the second case, for exampl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a device for inductive position determination comprising a signal generator, a coil connected to the signal generator, an element for influencing the inductance of the coil in accordance with the distance thereof to the coil and an evaluation device for determining the position of the element with respect to the coil, based on a voltage on the coil. Said signal generator generates a square-wave signal.

Description

technical field [0001] The invention relates to inductive position determination devices. In particular, the invention relates to determining the position of an on-board device of a motor vehicle. Background technique [0002] In motor vehicles, position sensors are formed on various devices which detect the position of the first element relative to the second element in order to detect, for example, the state of a lowerable window, the state of a seat or the shift position of a gear lever. A position sensor for detecting such a position can be designed inductively, a coil being arranged on one of the elements and a conductive element being arranged on the other element. The coil can be acted upon with a sinusoidal voltage of a predetermined frequency, wherein complex voltages appear across the coil depending on the inductance of the coil. The closer the conductive element is to the coil, the stronger the eddy currents induced in the conductive element and weakening the ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/20
CPCG01D5/2013G01D5/202H04B5/73H04B5/26H04B5/00H04B5/72B60L2250/16H01F2038/143H01F2038/146
Inventor 托马斯·埃德曼阿乔伊·帕利特
Owner ZF FRIEDRICHSHAFEN AG